From 015eefdf88fa5b8bba33a0d23aa8c092750ddd81 Mon Sep 17 00:00:00 2001 From: luoyaoming Date: Wed, 24 Apr 2024 09:12:01 +0800 Subject: [PATCH] Import Upstream version 0.9.0 --- .editorconfig | 1 - .github/workflows/check.yml | 167 + CODE-OF-CONDUCT.md | 3 + LICENSE | 1 + Makefile-bwrap.am | 1 - Makefile.am | 51 +- Makefile.in | 1370 -- README.md | 97 +- SECURITY.md | 42 + aclocal.m4 | 1516 --- autogen.sh | 8 +- bind-mount.c | 197 +- bind-mount.h | 32 +- bubblewrap.c | 802 +- bubblewrap.jpg | Bin 0 -> 40239 bytes build-aux/compile | 348 - build-aux/config.guess | 1421 -- build-aux/config.sub | 1807 --- build-aux/depcomp | 791 -- build-aux/install-sh | 518 - build-aux/ltmain.sh | 11147 ---------------- build-aux/missing | 215 - build-aux/tap-driver.sh | 651 - build-aux/test-driver | 148 - bwrap.xml | 196 +- ci/builddeps.sh | 111 + completions/bash/bwrap | 30 +- completions/bash/meson.build | 36 + completions/meson.build | 7 + completions/zsh/_bwrap | 115 + completions/zsh/meson.build | 7 + config.h.in | 104 - configure | 7303 ---------- configure.ac | 46 +- debian/bubblewrap.examples | 1 - debian/changelog | 24 - debian/clean | 1 - debian/control | 36 - debian/copyright | 68 - debian/docs | 1 - debian/lintian-overrides | 2 - debian/rules | 42 - debian/salsa-ci.yml | 3 - debian/source/format | 1 - debian/tests/basic | 21 - debian/tests/control | 36 - debian/tests/dev | 40 - debian/tests/net | 24 - debian/tests/upstream | 5 - debian/tests/upstream-as-root | 5 - debian/tests/upstream-usrmerge | 1 - debian/tests/userns | 42 - debian/upstream/metadata | 8 - debian/watch | 3 - demos/flatpak-run.sh | 2 +- demos/userns-block-fd.py | 5 +- git.mk | 348 + meson.build | 171 + meson_options.txt | 73 + network.c | 9 +- network.h | 1 + packaging/bubblewrap.spec | 1 - release-checklist.md | 18 + tests/libtest-core.sh | 46 +- tests/libtest.sh | 115 + tests/meson.build | 72 + tests/test-run.sh | 516 +- tests/test-seccomp.py | 635 + tests/test-specifying-pidns.sh | 28 + tests/test-specifying-userns.sh | 28 + tests/test-utils.c | 215 + tests/try-syscall.c | 180 + tests/use-as-subproject/.gitignore | 2 + tests/use-as-subproject/README | 3 + .../use-as-subproject/assert-correct-rpath.py | 26 + tests/use-as-subproject/config.h | 1 + tests/use-as-subproject/dummy-config.h.in | 1 + tests/use-as-subproject/meson.build | 20 + utils.c | 181 +- utils.h | 19 +- 80 files changed, 4207 insertions(+), 28162 deletions(-) create mode 100644 .github/workflows/check.yml create mode 100644 CODE-OF-CONDUCT.md create mode 120000 LICENSE delete mode 100644 Makefile.in create mode 100644 SECURITY.md delete mode 100644 aclocal.m4 create mode 100644 bubblewrap.jpg delete mode 100755 build-aux/compile delete mode 100755 build-aux/config.guess delete mode 100755 build-aux/config.sub delete mode 100755 build-aux/depcomp delete mode 100755 build-aux/install-sh delete mode 100644 build-aux/ltmain.sh delete mode 100755 build-aux/missing delete mode 100755 build-aux/tap-driver.sh delete mode 100755 build-aux/test-driver create mode 100755 ci/builddeps.sh create mode 100644 completions/bash/meson.build create mode 100644 completions/meson.build create mode 100644 completions/zsh/_bwrap create mode 100644 completions/zsh/meson.build delete mode 100644 config.h.in delete mode 100755 configure delete mode 100644 debian/bubblewrap.examples delete mode 100644 debian/changelog delete mode 100644 debian/clean delete mode 100644 debian/control delete mode 100644 debian/copyright delete mode 100644 debian/docs delete mode 100644 debian/lintian-overrides delete mode 100755 debian/rules delete mode 100644 debian/salsa-ci.yml delete mode 100644 debian/source/format delete mode 100755 debian/tests/basic delete mode 100644 debian/tests/control delete mode 100755 debian/tests/dev delete mode 100755 debian/tests/net delete mode 100755 debian/tests/upstream delete mode 100755 debian/tests/upstream-as-root delete mode 120000 debian/tests/upstream-usrmerge delete mode 100755 debian/tests/userns delete mode 100644 debian/upstream/metadata delete mode 100644 debian/watch create mode 100644 git.mk create mode 100644 meson.build create mode 100644 meson_options.txt create mode 100644 release-checklist.md create mode 100644 tests/libtest.sh create mode 100644 tests/meson.build create mode 100755 tests/test-seccomp.py create mode 100755 tests/test-specifying-pidns.sh create mode 100755 tests/test-specifying-userns.sh create mode 100644 tests/test-utils.c create mode 100644 tests/try-syscall.c create mode 100644 tests/use-as-subproject/.gitignore create mode 100644 tests/use-as-subproject/README create mode 100755 tests/use-as-subproject/assert-correct-rpath.py create mode 100644 tests/use-as-subproject/config.h create mode 100644 tests/use-as-subproject/dummy-config.h.in create mode 100644 tests/use-as-subproject/meson.build diff --git a/.editorconfig b/.editorconfig index d062d2c..89742b6 100644 --- a/.editorconfig +++ b/.editorconfig @@ -3,4 +3,3 @@ indent_style = space indent_size = 2 trim_trailing_whitespace = true indent_brace_style = gnu - diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml new file mode 100644 index 0000000..be21f8a --- /dev/null +++ b/.github/workflows/check.yml @@ -0,0 +1,167 @@ +name: CI checks + +on: + push: + branches: + - main + pull_request: + branches: + - main + +jobs: + check: + name: Build with Autotools and gcc, and test + runs-on: ubuntu-latest + steps: + - name: Check out + uses: actions/checkout@v1 + - name: Install build-dependencies + run: sudo ./ci/builddeps.sh + - name: Create logs dir + run: mkdir test-logs + - name: autogen.sh + run: NOCONFIGURE=1 ./autogen.sh + - name: configure + run: | + mkdir _build + pushd _build + ../configure \ + --enable-man \ + --enable-selinux \ + ${NULL+} + popd + env: + CFLAGS: >- + -O2 + -Wp,-D_FORTIFY_SOURCE=2 + -fsanitize=address + -fsanitize=undefined + - name: make + run: make -C _build -j $(getconf _NPROCESSORS_ONLN) V=1 + - name: smoke-test + run: | + set -x + ./_build/bwrap --bind / / --tmpfs /tmp true + env: + ASAN_OPTIONS: detect_leaks=0 + - name: check + run: | + make -C _build -j $(getconf _NPROCESSORS_ONLN) check VERBOSE=1 BWRAP_MUST_WORK=1 + env: + ASAN_OPTIONS: detect_leaks=0 + - name: Collect overall test logs on failure + if: failure() + run: mv _build/test-suite.log test-logs/ || true + - name: Collect individual test logs on cancel + if: failure() || cancelled() + run: mv _build/tests/*.log test-logs/ || true + - name: Upload test logs + uses: actions/upload-artifact@v1 + if: failure() || cancelled() + with: + name: test logs + path: test-logs + - name: install + run: | + make -C _build install DESTDIR="$(pwd)/DESTDIR" + ( cd DESTDIR && find -ls ) + - name: distcheck + run: | + make -C _build -j $(getconf _NPROCESSORS_ONLN) distcheck VERBOSE=1 BWRAP_MUST_WORK=1 + + meson: + name: Build with Meson and gcc, and test + runs-on: ubuntu-latest + steps: + - name: Check out + uses: actions/checkout@v1 + - name: Install build-dependencies + run: sudo ./ci/builddeps.sh + - name: Create logs dir + run: mkdir test-logs + - name: setup + run: | + meson _build + env: + CFLAGS: >- + -O2 + -Wp,-D_FORTIFY_SOURCE=2 + -fsanitize=address + -fsanitize=undefined + - name: compile + run: ninja -C _build -v + - name: smoke-test + run: | + set -x + ./_build/bwrap --bind / / --tmpfs /tmp true + env: + ASAN_OPTIONS: detect_leaks=0 + - name: test + run: | + BWRAP_MUST_WORK=1 meson test -C _build + env: + ASAN_OPTIONS: detect_leaks=0 + - name: Collect overall test logs on failure + if: failure() + run: mv _build/meson-logs/testlog.txt test-logs/ || true + - name: install + run: | + DESTDIR="$(pwd)/DESTDIR" meson install -C _build + ( cd DESTDIR && find -ls ) + - name: dist + run: | + BWRAP_MUST_WORK=1 meson dist -C _build + - name: Collect dist test logs on failure + if: failure() + run: mv _build/meson-private/dist-build/meson-logs/testlog.txt test-logs/disttestlog.txt || true + - name: use as subproject + run: | + mkdir tests/use-as-subproject/subprojects + tar -C tests/use-as-subproject/subprojects -xf _build/meson-dist/bubblewrap-*.tar.xz + mv tests/use-as-subproject/subprojects/bubblewrap-* tests/use-as-subproject/subprojects/bubblewrap + ( cd tests/use-as-subproject && meson _build ) + ninja -C tests/use-as-subproject/_build -v + meson test -C tests/use-as-subproject/_build + DESTDIR="$(pwd)/DESTDIR-as-subproject" meson install -C tests/use-as-subproject/_build + ( cd DESTDIR-as-subproject && find -ls ) + test -x DESTDIR-as-subproject/usr/local/libexec/not-flatpak-bwrap + test ! -e DESTDIR-as-subproject/usr/local/bin/bwrap + test ! -e DESTDIR-as-subproject/usr/local/libexec/bwrap + tests/use-as-subproject/assert-correct-rpath.py DESTDIR-as-subproject/usr/local/libexec/not-flatpak-bwrap + - name: Upload test logs + uses: actions/upload-artifact@v1 + if: failure() || cancelled() + with: + name: test logs + path: test-logs + + clang: + name: Build with clang and analyze + runs-on: ubuntu-latest + strategy: + fail-fast: false + matrix: + language: + - cpp + steps: + - name: Initialize CodeQL + uses: github/codeql-action/init@v2 + with: + languages: ${{ matrix.language }} + - name: Check out + uses: actions/checkout@v1 + - name: Install build-dependencies + run: sudo ./ci/builddeps.sh --clang + - name: autogen.sh + run: NOCONFIGURE=1 ./autogen.sh + - name: configure + run: ./configure --enable-selinux + env: + CC: clang + CFLAGS: >- + -O2 + -Werror=unused-variable + - name: make + run: make -j $(getconf _NPROCESSORS_ONLN) V=1 + - name: CodeQL analysis + uses: github/codeql-action/analyze@v2 diff --git a/CODE-OF-CONDUCT.md b/CODE-OF-CONDUCT.md new file mode 100644 index 0000000..8c417a6 --- /dev/null +++ b/CODE-OF-CONDUCT.md @@ -0,0 +1,3 @@ +## The bubblewrap Project Community Code of Conduct + +The bubblewrap project follows the [Containers Community Code of Conduct](https://github.com/containers/common/blob/HEAD/CODE-OF-CONDUCT.md). diff --git a/LICENSE b/LICENSE new file mode 120000 index 0000000..d24842f --- /dev/null +++ b/LICENSE @@ -0,0 +1 @@ +COPYING \ No newline at end of file diff --git a/Makefile-bwrap.am b/Makefile-bwrap.am index 4e967ee..aa97bd1 100644 --- a/Makefile-bwrap.am +++ b/Makefile-bwrap.am @@ -1,4 +1,3 @@ - bwrap_SOURCES = \ $(bwrap_srcpath)/bubblewrap.c \ $(bwrap_srcpath)/bind-mount.h \ diff --git a/Makefile.am b/Makefile.am index 644ea7c..81a160a 100644 --- a/Makefile.am +++ b/Makefile.am @@ -5,11 +5,21 @@ EXTRA_DIST = \ .editorconfig \ README.md \ autogen.sh \ + completions/bash/meson.build \ + completions/meson.build \ + completions/zsh/meson.build \ demos/bubblewrap-shell.sh \ demos/flatpak-run.sh \ demos/flatpak.bpf \ demos/userns-block-fd.py \ + meson.build \ + meson_options.txt \ packaging/bubblewrap.spec \ + tests/meson.build \ + tests/use-as-subproject/README \ + tests/use-as-subproject/config.h \ + tests/use-as-subproject/dummy-config.h.in \ + tests/use-as-subproject/meson.build \ uncrustify.cfg \ uncrustify.sh \ $(NULL) @@ -27,33 +37,64 @@ if PRIV_MODE_SETUID $(SUDO_BIN) chmod u+s $(DESTDIR)$(bindir)/bwrap endif -check_PROGRAMS = test-bwrap +test_programs = \ + tests/test-utils \ + $(NULL) +test_scripts = \ + tests/test-run.sh \ + tests/test-seccomp.py \ + tests/test-specifying-userns.sh \ + tests/test-specifying-pidns.sh \ + $(NULL) +test_extra_programs = \ + test-bwrap \ + tests/try-syscall \ + $(NULL) -test-bwrap: bwrap +test-bwrap$(EXEEXT): bwrap rm -rf test-bwrap cp bwrap test-bwrap + chmod 0755 test-bwrap if PRIV_MODE_SETUID $(SUDO_BIN) chown root test-bwrap $(SUDO_BIN) chmod u+s test-bwrap endif +tests_test_utils_SOURCES = \ + tests/test-utils.c \ + utils.h \ + utils.c \ + $(NULL) +tests_test_utils_LDADD = $(SELINUX_LIBS) + test_bwrap_SOURCES= include Makefile-docs.am LOG_DRIVER = env AM_TAP_AWK='$(AWK)' $(SHELL) $(top_srcdir)/build-aux/tap-driver.sh LOG_COMPILER = -TESTS = tests/test-run.sh -TESTS_ENVIRONMENT = BWRAP=$(abs_top_builddir)/test-bwrap +TESTS_ENVIRONMENT = \ + BWRAP=$(abs_top_builddir)/test-bwrap \ + G_TEST_BUILDDIR=$(abs_top_builddir) \ + G_TEST_SRCDIR=$(abs_top_srcdir) \ + $(NULL) +check_PROGRAMS = $(test_programs) $(test_extra_programs) +TESTS = $(test_programs) $(test_scripts) -EXTRA_DIST += $(TESTS) +EXTRA_DIST += $(test_scripts) EXTRA_DIST += tests/libtest-core.sh +EXTRA_DIST += tests/libtest.sh if ENABLE_BASH_COMPLETION bashcompletiondir = $(BASH_COMPLETION_DIR) dist_bashcompletion_DATA = completions/bash/bwrap endif +if ENABLE_ZSH_COMPLETION +zshcompletiondir = $(ZSH_COMPLETION_DIR) +dist_zshcompletion_DATA = completions/zsh/_bwrap +endif + -include $(top_srcdir)/git.mk AM_DISTCHECK_CONFIGURE_FLAGS = \ diff --git a/Makefile.in b/Makefile.in deleted file mode 100644 index 9f016cd..0000000 --- a/Makefile.in +++ /dev/null @@ -1,1370 +0,0 @@ -# Makefile.in generated by automake 1.16.1 from Makefile.am. -# @configure_input@ - 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These tools are not suitable to give to unprivileged users, because it -is trivial to turn such access into to a fully privileged root shell +is trivial to turn such access into a fully privileged root shell on the host. User namespaces @@ -31,12 +31,12 @@ user namespaces. Emphasis on subset - specifically relevant to the above CVE, bubblewrap does not allow control over iptables. The original bubblewrap code existed before user namespaces - it inherits code from -[xdg-app helper](https://cgit.freedesktop.org/xdg-app/xdg-app/tree/common/xdg-app-helper.c) +[xdg-app helper](https://cgit.freedesktop.org/xdg-app/xdg-app/tree/common/xdg-app-helper.c?id=4c3bf179e2e4a2a298cd1db1d045adaf3f564532) which in turn distantly derives from [linux-user-chroot](https://git.gnome.org/browse/linux-user-chroot). -Security --------- +System security +--------------- The maintainers of this tool believe that it does not, even when used in combination with typical software installed on that distribution, @@ -47,6 +47,30 @@ In particular, bubblewrap uses `PR_SET_NO_NEW_PRIVS` to turn off setuid binaries, which is the [traditional way](https://en.wikipedia.org/wiki/Chroot#Limitations) to get out of things like chroots. +Sandbox security +---------------- + +bubblewrap is a tool for constructing sandbox environments. +bubblewrap is not a complete, ready-made sandbox with a specific security +policy. + +Some of bubblewrap's use-cases want a security boundary between the sandbox +and the real system; other use-cases want the ability to change the layout of +the filesystem for processes inside the sandbox, but do not aim to be a +security boundary. +As a result, the level of protection between the sandboxed processes and +the host system is entirely determined by the arguments passed to +bubblewrap. + +Whatever program constructs the command-line arguments for bubblewrap +(often a larger framework like Flatpak, libgnome-desktop, sandwine +or an ad-hoc script) is responsible for defining its own security model, +and choosing appropriate bubblewrap command-line arguments to implement +that security model. + +Some aspects of sandbox security that require particular care are described +in the [Limitations](#limitations) section below. + Users ----- @@ -62,6 +86,31 @@ clusters. Having the ability for unprivileged users to use container features would make it significantly easier to do interactive debugging scenarios and the like. +Installation +------------ + +bubblewrap is available in the package repositories of the most Linux distributions +and can be installed from there. + +If you need to build bubblewrap from source, you can do this with meson or autotools. + +meson: + +``` +meson _builddir +meson compile -C _builddir +meson test -C _builddir +meson install -C _builddir +``` + +autotools: + +``` +./autogen.sh +make +sudo make install +``` + Usage ----- @@ -77,7 +126,14 @@ source code, but here's a trimmed down version which runs a new shell reusing the host's `/usr`. ``` -bwrap --ro-bind /usr /usr --symlink usr/lib64 /lib64 --proc /proc --dev /dev --unshare-pid bash +bwrap \ + --ro-bind /usr /usr \ + --symlink usr/lib64 /lib64 \ + --proc /proc \ + --dev /dev \ + --unshare-pid \ + --new-session \ + bash ``` This is an incomplete example, but useful for purposes of @@ -114,10 +170,39 @@ UTS namespace ([CLONE_NEWUTS](http://linux.die.net/man/2/clone)): The sandbox wi Seccomp filters: You can pass in seccomp filters that limit which syscalls can be done in the sandbox. For more information, see [Seccomp](https://en.wikipedia.org/wiki/Seccomp). +Limitations +----------- + +As noted in the [Sandbox security](#sandbox-security) section above, +the level of protection between the sandboxed processes and the host system +is entirely determined by the arguments passed to bubblewrap. +Some aspects that require special care are noted here. + +- If you are not filtering out `TIOCSTI` commands using seccomp filters, +argument `--new-session` is needed to protect against out-of-sandbox +command execution +(see [CVE-2017-5226](https://github.com/containers/bubblewrap/issues/142)). + +- Everything mounted into the sandbox can potentially be used to escalate +privileges. +For example, if you bind a D-Bus socket into the sandbox, it can be used to +execute commands via systemd. You can use +[xdg-dbus-proxy](https://github.com/flatpak/xdg-dbus-proxy) to filter +D-Bus communication. + +- Some applications deploy their own sandboxing mechanisms, and these can be +restricted by the constraints imposed by bubblewrap's sandboxing. +For example, some web browsers which configure their child proccesses via +seccomp to not have access to the filesystem. If you limit the syscalls and +don't allow the seccomp syscall, a browser cannot apply these restrictions. +Similarly, if these rules were compiled into a file that is not available in +the sandbox, the browser cannot load these rules from this file and cannot +apply these restrictions. + Related project comparison: Firejail ------------------------------------ -[Firejail](https://github.com/netblue30/firejail/tree/master/src/firejail) +[Firejail](https://github.com/netblue30/firejail/tree/HEAD/src/firejail) is similar to Flatpak before bubblewrap was split out in that it combines a setuid tool with a lot of desktop-specific sandboxing features. For example, Firejail knows about Pulseaudio, whereas bubblewrap does not. diff --git a/SECURITY.md b/SECURITY.md new file mode 100644 index 0000000..0ddfc6c --- /dev/null +++ b/SECURITY.md @@ -0,0 +1,42 @@ +## Security and Disclosure Information Policy for the bubblewrap Project + +The bubblewrap Project follows the [Security and Disclosure Information Policy](https://github.com/containers/common/blob/HEAD/SECURITY.md) for the Containers Projects. + +### System security + +If bubblewrap is setuid root, then the goal is that it does not allow +a malicious local user to do anything that would not have been possible +on a kernel that allows unprivileged users to create new user namespaces. +For example, [CVE-2020-5291](https://github.com/containers/bubblewrap/security/advisories/GHSA-j2qp-rvxj-43vj) +was treated as a security vulnerability in bubblewrap. + +If bubblewrap is not setuid root, then it is not a security boundary +between the user and the OS, because anything bubblewrap could do, a +malicious user could equally well do by writing their own tool equivalent +to bubblewrap. + +### Sandbox security + +bubblewrap is a toolkit for constructing sandbox environments. +bubblewrap is not a complete, ready-made sandbox with a specific security +policy. + +Some of bubblewrap's use-cases want a security boundary between the sandbox +and the real system; other use-cases want the ability to change the layout of +the filesystem for processes inside the sandbox, but do not aim to be a +security boundary. +As a result, the level of protection between the sandboxed processes and +the host system is entirely determined by the arguments passed to +bubblewrap. + +Whatever program constructs the command-line arguments for bubblewrap +(often a larger framework like Flatpak, libgnome-desktop, sandwine +or an ad-hoc script) is responsible for defining its own security model, +and choosing appropriate bubblewrap command-line arguments to implement +that security model. + +For example, +[CVE-2017-5226](https://github.com/flatpak/flatpak/security/advisories/GHSA-7gfv-rvfx-h87x) +(in which a Flatpak app could send input to a parent terminal using the +`TIOCSTI` ioctl) is considered to be a Flatpak vulnerability, not a +bubblewrap vulnerability. diff --git a/aclocal.m4 b/aclocal.m4 deleted file mode 100644 index f84754c..0000000 --- a/aclocal.m4 +++ /dev/null @@ -1,1516 +0,0 @@ -# generated automatically by aclocal 1.16.1 -*- Autoconf -*- - -# Copyright (C) 1996-2018 Free Software Foundation, Inc. - -# This file is free software; the Free Software Foundation -# gives unlimited permission to copy and/or distribute it, -# with or without modifications, as long as this notice is preserved. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY, to the extent permitted by law; without -# even the implied warranty of MERCHANTABILITY or FITNESS FOR A -# PARTICULAR PURPOSE. - -m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])]) -m4_ifndef([AC_AUTOCONF_VERSION], - [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl -m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],, -[m4_warning([this file was generated for autoconf 2.69. -You have another version of autoconf. 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(autoreconf --version >/dev/null 2>&1); then echo "*** No autoreconf found, please install it ***" @@ -15,5 +15,5 @@ mkdir -p m4 autoreconf --force --install --verbose -cd $olddir +cd "$olddir" test -n "$NOCONFIGURE" || "$srcdir/configure" "$@" diff --git a/bind-mount.c b/bind-mount.c index 045fa0e..2757cae 100644 --- a/bind-mount.c +++ b/bind-mount.c @@ -1,5 +1,6 @@ /* bubblewrap * Copyright (C) 2016 Alexander Larsson + * SPDX-License-Identifier: LGPL-2.0-or-later * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -85,7 +86,7 @@ decode_mountoptions (const char *options) int i; unsigned long flags = 0; static const struct { int flag; - char *name; + const char *name; } flags_data[] = { { 0, "rw" }, { MS_RDONLY, "ro" }, @@ -236,7 +237,7 @@ parse_mountinfo (int proc_fd, MountInfo *end_tab; int n_mounts; char *line; - int i; + unsigned int i; int max_id; unsigned int n_lines; int root; @@ -246,7 +247,7 @@ parse_mountinfo (int proc_fd, die_with_error ("Can't open /proc/self/mountinfo"); n_lines = count_lines (mountinfo); - lines = xcalloc (n_lines * sizeof (MountInfoLine)); + lines = xcalloc (n_lines, sizeof (MountInfoLine)); max_id = 0; line = mountinfo; @@ -309,11 +310,11 @@ parse_mountinfo (int proc_fd, if (root == -1) { - mount_tab = xcalloc (sizeof (MountInfo) * (1)); + mount_tab = xcalloc (1, sizeof (MountInfo)); return steal_pointer (&mount_tab); } - by_id = xcalloc ((max_id + 1) * sizeof (MountInfoLine*)); + by_id = xcalloc (max_id + 1, sizeof (MountInfoLine*)); for (i = 0; i < n_lines; i++) by_id[lines[i].id] = &lines[i]; @@ -365,7 +366,7 @@ parse_mountinfo (int proc_fd, } n_mounts = count_mounts (&lines[root]); - mount_tab = xcalloc (sizeof (MountInfo) * (n_mounts + 1)); + mount_tab = xcalloc (n_mounts + 1, sizeof (MountInfo)); end_tab = collect_mounts (&mount_tab[0], &lines[root]); assert (end_tab == &mount_tab[n_mounts]); @@ -373,11 +374,12 @@ parse_mountinfo (int proc_fd, return steal_pointer (&mount_tab); } -int +bind_mount_result bind_mount (int proc_fd, const char *src, const char *dest, - bind_option_t options) + bind_option_t options, + char **failing_path) { bool readonly = (options & BIND_READONLY) != 0; bool devices = (options & BIND_DEVICES) != 0; @@ -385,34 +387,76 @@ bind_mount (int proc_fd, unsigned long current_flags, new_flags; cleanup_mount_tab MountTab mount_tab = NULL; cleanup_free char *resolved_dest = NULL; + cleanup_free char *dest_proc = NULL; + cleanup_free char *oldroot_dest_proc = NULL; + cleanup_free char *kernel_case_combination = NULL; + cleanup_fd int dest_fd = -1; int i; if (src) { - if (mount (src, dest, NULL, MS_BIND | (recursive ? MS_REC : 0), NULL) != 0) - return 1; + if (mount (src, dest, NULL, MS_SILENT | MS_BIND | (recursive ? MS_REC : 0), NULL) != 0) + return BIND_MOUNT_ERROR_MOUNT; } /* The mount operation will resolve any symlinks in the destination path, so to find it in the mount table we need to do that too. */ resolved_dest = realpath (dest, NULL); if (resolved_dest == NULL) - return 2; + return BIND_MOUNT_ERROR_REALPATH_DEST; - mount_tab = parse_mountinfo (proc_fd, resolved_dest); - if (mount_tab[0].mountpoint == NULL) + dest_fd = open (resolved_dest, O_PATH | O_CLOEXEC); + if (dest_fd < 0) { - errno = EINVAL; - return 2; /* No mountpoint at dest */ + if (failing_path != NULL) + *failing_path = steal_pointer (&resolved_dest); + + return BIND_MOUNT_ERROR_REOPEN_DEST; } - assert (path_equal (mount_tab[0].mountpoint, resolved_dest)); + /* If we are in a case-insensitive filesystem, mountinfo might contain a + * different case combination of the path we requested to mount. + * This is due to the fact that the kernel, as of the beginning of 2021, + * populates mountinfo with whatever case combination first appeared in the + * dcache; kernel developers plan to change this in future so that it + * reflects the on-disk encoding instead. + * To avoid throwing an error when this happens, we use readlink() result + * instead of the provided @root_mount, so that we can compare the mountinfo + * entries with the same case combination that the kernel is expected to + * use. */ + dest_proc = xasprintf ("/proc/self/fd/%d", dest_fd); + oldroot_dest_proc = get_oldroot_path (dest_proc); + kernel_case_combination = readlink_malloc (oldroot_dest_proc); + if (kernel_case_combination == NULL) + { + if (failing_path != NULL) + *failing_path = steal_pointer (&resolved_dest); + + return BIND_MOUNT_ERROR_READLINK_DEST_PROC_FD; + } + + mount_tab = parse_mountinfo (proc_fd, kernel_case_combination); + if (mount_tab[0].mountpoint == NULL) + { + if (failing_path != NULL) + *failing_path = steal_pointer (&kernel_case_combination); + + errno = EINVAL; + return BIND_MOUNT_ERROR_FIND_DEST_MOUNT; + } + + assert (path_equal (mount_tab[0].mountpoint, kernel_case_combination)); current_flags = mount_tab[0].options; new_flags = current_flags | (devices ? 0 : MS_NODEV) | MS_NOSUID | (readonly ? MS_RDONLY : 0); if (new_flags != current_flags && mount ("none", resolved_dest, - NULL, MS_BIND | MS_REMOUNT | new_flags, NULL) != 0) - return 3; + NULL, MS_SILENT | MS_BIND | MS_REMOUNT | new_flags, NULL) != 0) + { + if (failing_path != NULL) + *failing_path = steal_pointer (&resolved_dest); + + return BIND_MOUNT_ERROR_REMOUNT_DEST; + } /* We need to work around the fact that a bind mount does not apply the flags, so we need to manually * apply the flags to all submounts in the recursive case. @@ -426,15 +470,126 @@ bind_mount (int proc_fd, new_flags = current_flags | (devices ? 0 : MS_NODEV) | MS_NOSUID | (readonly ? MS_RDONLY : 0); if (new_flags != current_flags && mount ("none", mount_tab[i].mountpoint, - NULL, MS_BIND | MS_REMOUNT | new_flags, NULL) != 0) + NULL, MS_SILENT | MS_BIND | MS_REMOUNT | new_flags, NULL) != 0) { /* If we can't read the mountpoint we can't remount it, but that should be safe to ignore because its not something the user can access. */ if (errno != EACCES) - return 5; + { + if (failing_path != NULL) + *failing_path = xstrdup (mount_tab[i].mountpoint); + + return BIND_MOUNT_ERROR_REMOUNT_SUBMOUNT; + } } } } - return 0; + return BIND_MOUNT_SUCCESS; +} + +/** + * Return a string representing bind_mount_result, like strerror(). + * If want_errno_p is non-NULL, *want_errno_p is used to indicate whether + * it would make sense to print strerror(saved_errno). + */ +static char * +bind_mount_result_to_string (bind_mount_result res, + const char *failing_path, + bool *want_errno_p) +{ + char *string = NULL; + bool want_errno = TRUE; + + switch (res) + { + case BIND_MOUNT_ERROR_MOUNT: + string = xstrdup ("Unable to mount source on destination"); + break; + + case BIND_MOUNT_ERROR_REALPATH_DEST: + string = xstrdup ("realpath(destination)"); + break; + + case BIND_MOUNT_ERROR_REOPEN_DEST: + string = xasprintf ("open(\"%s\", O_PATH)", failing_path); + break; + + case BIND_MOUNT_ERROR_READLINK_DEST_PROC_FD: + string = xasprintf ("readlink(/proc/self/fd/N) for \"%s\"", failing_path); + break; + + case BIND_MOUNT_ERROR_FIND_DEST_MOUNT: + string = xasprintf ("Unable to find \"%s\" in mount table", failing_path); + want_errno = FALSE; + break; + + case BIND_MOUNT_ERROR_REMOUNT_DEST: + string = xasprintf ("Unable to remount destination \"%s\" with correct flags", + failing_path); + break; + + case BIND_MOUNT_ERROR_REMOUNT_SUBMOUNT: + string = xasprintf ("Unable to apply mount flags: remount \"%s\"", + failing_path); + break; + + case BIND_MOUNT_SUCCESS: + string = xstrdup ("Success"); + break; + + default: + string = xstrdup ("(unknown/invalid bind_mount_result)"); + break; + } + + if (want_errno_p != NULL) + *want_errno_p = want_errno; + + return string; +} + +void +die_with_bind_result (bind_mount_result res, + int saved_errno, + const char *failing_path, + const char *format, + ...) +{ + va_list args; + bool want_errno = TRUE; + char *message; + + fprintf (stderr, "bwrap: "); + + va_start (args, format); + vfprintf (stderr, format, args); + va_end (args); + + message = bind_mount_result_to_string (res, failing_path, &want_errno); + fprintf (stderr, ": %s", message); + /* message is leaked, but we're exiting unsuccessfully anyway, so ignore */ + + if (want_errno) + { + switch (res) + { + case BIND_MOUNT_ERROR_MOUNT: + case BIND_MOUNT_ERROR_REMOUNT_DEST: + case BIND_MOUNT_ERROR_REMOUNT_SUBMOUNT: + fprintf (stderr, ": %s", mount_strerror (saved_errno)); + break; + + case BIND_MOUNT_ERROR_REALPATH_DEST: + case BIND_MOUNT_ERROR_REOPEN_DEST: + case BIND_MOUNT_ERROR_READLINK_DEST_PROC_FD: + case BIND_MOUNT_ERROR_FIND_DEST_MOUNT: + case BIND_MOUNT_SUCCESS: + default: + fprintf (stderr, ": %s", strerror (saved_errno)); + } + } + + fprintf (stderr, "\n"); + exit (1); } diff --git a/bind-mount.h b/bind-mount.h index c763763..8a361fb 100644 --- a/bind-mount.h +++ b/bind-mount.h @@ -1,5 +1,6 @@ /* bubblewrap * Copyright (C) 2016 Alexander Larsson + * SPDX-License-Identifier: LGPL-2.0-or-later * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -18,13 +19,36 @@ #pragma once +#include "utils.h" + typedef enum { BIND_READONLY = (1 << 0), BIND_DEVICES = (1 << 2), BIND_RECURSIVE = (1 << 3), } bind_option_t; -int bind_mount (int proc_fd, - const char *src, - const char *dest, - bind_option_t options); +typedef enum +{ + BIND_MOUNT_SUCCESS = 0, + BIND_MOUNT_ERROR_MOUNT, + BIND_MOUNT_ERROR_REALPATH_DEST, + BIND_MOUNT_ERROR_REOPEN_DEST, + BIND_MOUNT_ERROR_READLINK_DEST_PROC_FD, + BIND_MOUNT_ERROR_FIND_DEST_MOUNT, + BIND_MOUNT_ERROR_REMOUNT_DEST, + BIND_MOUNT_ERROR_REMOUNT_SUBMOUNT, +} bind_mount_result; + +bind_mount_result bind_mount (int proc_fd, + const char *src, + const char *dest, + bind_option_t options, + char **failing_path); + +void die_with_bind_result (bind_mount_result res, + int saved_errno, + const char *failing_path, + const char *format, + ...) + __attribute__((__noreturn__)) + __attribute__((format (printf, 4, 5))); diff --git a/bubblewrap.c b/bubblewrap.c index 87000e8..9b78a9a 100644 --- a/bubblewrap.c +++ b/bubblewrap.c @@ -1,5 +1,6 @@ /* bubblewrap * Copyright (C) 2016 Alexander Larsson + * SPDX-License-Identifier: LGPL-2.0-or-later * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -22,6 +23,7 @@ #include #include #include +#include #include #include #include @@ -51,6 +53,12 @@ __result; })) #endif +/* We limit the size of a tmpfs to half the architecture's address space, + * to avoid hitting arbitrary limits in the kernel. + * For example, on at least one x86_64 machine, the actual limit seems to be + * 2^64 - 2^12. */ +#define MAX_TMPFS_BYTES ((size_t) (SIZE_MAX >> 1)) + /* Globals to avoid having to use getuid(), since the uid/gid changes during runtime */ static uid_t real_uid; static gid_t real_gid; @@ -64,31 +72,36 @@ static const char *opt_exec_label = NULL; static const char *opt_file_label = NULL; static bool opt_as_pid_1; -const char *opt_chdir_path = NULL; -bool opt_unshare_user = FALSE; -bool opt_unshare_user_try = FALSE; -bool opt_unshare_pid = FALSE; -bool opt_unshare_ipc = FALSE; -bool opt_unshare_net = FALSE; -bool opt_unshare_uts = FALSE; -bool opt_unshare_cgroup = FALSE; -bool opt_unshare_cgroup_try = FALSE; -bool opt_needs_devpts = FALSE; -bool opt_new_session = FALSE; -bool opt_die_with_parent = FALSE; -uid_t opt_sandbox_uid = -1; -gid_t opt_sandbox_gid = -1; -int opt_sync_fd = -1; -int opt_block_fd = -1; -int opt_userns_block_fd = -1; -int opt_info_fd = -1; -int opt_json_status_fd = -1; -int opt_seccomp_fd = -1; -const char *opt_sandbox_hostname = NULL; -char *opt_args_data = NULL; /* owned */ -int opt_userns_fd = -1; -int opt_userns2_fd = -1; -int opt_pidns_fd = -1; +static const char *opt_argv0 = NULL; +static const char *opt_chdir_path = NULL; +static bool opt_assert_userns_disabled = FALSE; +static bool opt_disable_userns = FALSE; +static bool opt_unshare_user = FALSE; +static bool opt_unshare_user_try = FALSE; +static bool opt_unshare_pid = FALSE; +static bool opt_unshare_ipc = FALSE; +static bool opt_unshare_net = FALSE; +static bool opt_unshare_uts = FALSE; +static bool opt_unshare_cgroup = FALSE; +static bool opt_unshare_cgroup_try = FALSE; +static bool opt_needs_devpts = FALSE; +static bool opt_new_session = FALSE; +static bool opt_die_with_parent = FALSE; +static uid_t opt_sandbox_uid = -1; +static gid_t opt_sandbox_gid = -1; +static int opt_sync_fd = -1; +static int opt_block_fd = -1; +static int opt_userns_block_fd = -1; +static int opt_info_fd = -1; +static int opt_json_status_fd = -1; +static int opt_seccomp_fd = -1; +static const char *opt_sandbox_hostname = NULL; +static char *opt_args_data = NULL; /* owned */ +static int opt_userns_fd = -1; +static int opt_userns2_fd = -1; +static int opt_pidns_fd = -1; +static int next_perms = -1; +static size_t next_size_arg = 0; #define CAP_TO_MASK_0(x) (1L << ((x) & 31)) #define CAP_TO_MASK_1(x) CAP_TO_MASK_0(x - 32) @@ -129,6 +142,7 @@ typedef enum { SETUP_MAKE_SYMLINK, SETUP_REMOUNT_RO_NO_RECURSIVE, SETUP_SET_HOSTNAME, + SETUP_CHMOD, } SetupOpType; typedef enum { @@ -145,6 +159,8 @@ struct _SetupOp const char *dest; int fd; SetupOpFlag flags; + int perms; + size_t size; /* number of bytes, zero means unset/default */ SetupOp *next; }; @@ -157,11 +173,6 @@ struct _LockFile LockFile *next; }; -static SetupOp *ops = NULL; -static SetupOp *last_op = NULL; -static LockFile *lock_files = NULL; -static LockFile *last_lock_file = NULL; - enum { PRIV_SEP_OP_DONE, PRIV_SEP_OP_BIND_MOUNT, @@ -177,52 +188,129 @@ typedef struct { uint32_t op; uint32_t flags; + uint32_t perms; + size_t size_arg; uint32_t arg1_offset; uint32_t arg2_offset; } PrivSepOp; +/* + * DEFINE_LINKED_LIST: + * @Type: A struct with a `Type *next` member + * @name: Used to form the names of variables and functions + * + * Define a global linked list of @Type structures, with pointers + * `NAMEs` to the head of the list and `last_NAME` to the tail of the + * list. + * + * A new zero-filled item can be allocated and appended to the list + * by calling `_NAME_append_new()`, which returns the new item. + */ +#define DEFINE_LINKED_LIST(Type, name) \ +static Type *name ## s = NULL; \ +static Type *last_ ## name = NULL; \ +\ +static inline Type * \ +_ ## name ## _append_new (void) \ +{ \ + Type *self = xcalloc (1, sizeof (Type)); \ +\ + if (last_ ## name != NULL) \ + last_ ## name ->next = self; \ + else \ + name ## s = self; \ +\ + last_ ## name = self; \ + return self; \ +} + +DEFINE_LINKED_LIST (SetupOp, op) + static SetupOp * setup_op_new (SetupOpType type) { - SetupOp *op = xcalloc (sizeof (SetupOp)); + SetupOp *op = _op_append_new (); op->type = type; op->fd = -1; op->flags = 0; - if (last_op != NULL) - last_op->next = op; - else - ops = op; - - last_op = op; return op; } +DEFINE_LINKED_LIST (LockFile, lock_file) + static LockFile * lock_file_new (const char *path) { - LockFile *lock = xcalloc (sizeof (LockFile)); + LockFile *lock = _lock_file_append_new (); lock->path = path; - if (last_lock_file != NULL) - last_lock_file->next = lock; - else - lock_files = lock; - - last_lock_file = lock; return lock; } +typedef struct _SeccompProgram SeccompProgram; + +struct _SeccompProgram +{ + struct sock_fprog program; + SeccompProgram *next; +}; + +DEFINE_LINKED_LIST (SeccompProgram, seccomp_program) + +static SeccompProgram * +seccomp_program_new (int *fd) +{ + SeccompProgram *self = _seccomp_program_append_new (); + cleanup_free char *data = NULL; + size_t len; + + data = load_file_data (*fd, &len); + + if (data == NULL) + die_with_error ("Can't read seccomp data"); + + close (*fd); + *fd = -1; + + if (len % 8 != 0) + die ("Invalid seccomp data, must be multiple of 8"); + + self->program.len = len / 8; + self->program.filter = (struct sock_filter *) steal_pointer (&data); + return self; +} + +static void +seccomp_programs_apply (void) +{ + SeccompProgram *program; + + for (program = seccomp_programs; program != NULL; program = program->next) + { + if (prctl (PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &program->program) != 0) + { + if (errno == EINVAL) + die ("Unable to set up system call filtering as requested: " + "prctl(PR_SET_SECCOMP) reported EINVAL. " + "(Hint: this requires a kernel configured with " + "CONFIG_SECCOMP and CONFIG_SECCOMP_FILTER.)"); + + die_with_error ("prctl(PR_SET_SECCOMP)"); + } + } +} static void usage (int ecode, FILE *out) { - fprintf (out, "usage: %s [OPTIONS...] [--] COMMAND [ARGS...]\n\n", argv0); + fprintf (out, "usage: %s [OPTIONS...] [--] COMMAND [ARGS...]\n\n", argv0 ? argv0 : "bwrap"); fprintf (out, " --help Print this help\n" " --version Print version\n" " --args FD Parse NUL-separated args from FD\n" + " --argv0 VALUE Set argv[0] to the value VALUE before running the program\n" " --unshare-all Unshare every namespace we support by default\n" " --share-net Retain the network namespace (can only combine with --unshare-all)\n" " --unshare-user Create new user namespace (may be automatically implied if not setuid)\n" @@ -234,12 +322,15 @@ usage (int ecode, FILE *out) " --unshare-cgroup Create new cgroup namespace\n" " --unshare-cgroup-try Create new cgroup namespace if possible else continue by skipping it\n" " --userns FD Use this user namespace (cannot combine with --unshare-user)\n" - " --userns2 FD After setup switch to this user namspace, only useful with --userns\n" - " --pidns FD Use this user namespace (as parent namespace if using --unshare-pid)\n" + " --userns2 FD After setup switch to this user namespace, only useful with --userns\n" + " --disable-userns Disable further use of user namespaces inside sandbox\n" + " --assert-userns-disabled Fail unless further use of user namespace inside sandbox is disabled\n" + " --pidns FD Use this pid namespace (as parent namespace if using --unshare-pid)\n" " --uid UID Custom uid in the sandbox (requires --unshare-user or --userns)\n" " --gid GID Custom gid in the sandbox (requires --unshare-user or --userns)\n" " --hostname NAME Custom hostname in the sandbox (requires --unshare-uts)\n" " --chdir DIR Change directory to DIR\n" + " --clearenv Unset all environment variables\n" " --setenv VAR VALUE Set an environment variable\n" " --unsetenv VAR Unset an environment variable\n" " --lock-file DEST Take a lock on DEST while sandbox is running\n" @@ -262,7 +353,8 @@ usage (int ecode, FILE *out) " --bind-data FD DEST Copy from FD to file which is bind-mounted on DEST\n" " --ro-bind-data FD DEST Copy from FD to file which is readonly bind-mounted on DEST\n" " --symlink SRC DEST Create symlink at DEST with target SRC\n" - " --seccomp FD Load and use seccomp rules from FD\n" + " --seccomp FD Load and use seccomp rules from FD (not repeatable)\n" + " --add-seccomp-fd FD Load and use seccomp rules from FD (repeatable)\n" " --block-fd FD Block on FD until some data to read is available\n" " --userns-block-fd FD Block on FD until the user namespace is ready\n" " --info-fd FD Write information about the running container to FD\n" @@ -272,6 +364,9 @@ usage (int ecode, FILE *out) " --as-pid-1 Do not install a reaper process with PID=1\n" " --cap-add CAP Add cap CAP when running as privileged user\n" " --cap-drop CAP Drop cap CAP when running as privileged user\n" + " --perms OCTAL Set permissions of next argument (--bind-data, --file, etc.)\n" + " --size BYTES Set size of next argument (only for --tmpfs)\n" + " --chmod OCTAL PATH Change permissions of PATH (must already exist)\n" ); exit (ecode); } @@ -403,7 +498,7 @@ monitor_child (int event_fd, pid_t child_pid, int setup_finished_fd) int num_fds; struct signalfd_siginfo fdsi; int dont_close[] = {-1, -1, -1, -1}; - int j = 0; + unsigned int j = 0; int exitc; pid_t died_pid; int died_status; @@ -494,7 +589,7 @@ monitor_child (int event_fd, pid_t child_pid, int setup_finished_fd) * When there are no other processes in the sandbox the wait will return * ECHILD, and we then exit pid 1 to clean up the sandbox. */ static int -do_init (int event_fd, pid_t initial_pid, struct sock_fprog *seccomp_prog) +do_init (int event_fd, pid_t initial_pid) { int initial_exit_status = 1; LockFile *lock; @@ -522,9 +617,7 @@ do_init (int event_fd, pid_t initial_pid, struct sock_fprog *seccomp_prog) /* Optionally bind our lifecycle to that of the caller */ handle_die_with_parent (); - if (seccomp_prog != NULL && - prctl (PR_SET_SECCOMP, SECCOMP_MODE_FILTER, seccomp_prog) != 0) - die_with_error ("prctl(PR_SET_SECCOMP)"); + seccomp_programs_apply (); while (TRUE) { @@ -532,17 +625,20 @@ do_init (int event_fd, pid_t initial_pid, struct sock_fprog *seccomp_prog) int status; child = wait (&status); - if (child == initial_pid && event_fd != -1) + if (child == initial_pid) { - uint64_t val; - int res UNUSED; - initial_exit_status = propagate_exit_status (status); - val = initial_exit_status + 1; - res = write (event_fd, &val, 8); - /* Ignore res, if e.g. the parent died and closed event_fd - we don't want to error out here */ + if(event_fd != -1) + { + uint64_t val; + int res UNUSED; + + val = initial_exit_status + 1; + res = write (event_fd, &val, 8); + /* Ignore res, if e.g. the parent died and closed event_fd + we don't want to error out here */ + } } if (child == -1 && errno != EINTR) @@ -850,22 +946,6 @@ drop_privs (bool keep_requested_caps, die_with_error ("can't set dumpable"); } -static char * -get_newroot_path (const char *path) -{ - while (*path == '/') - path++; - return strconcat ("/newroot/", path); -} - -static char * -get_oldroot_path (const char *path) -{ - while (*path == '/') - path++; - return strconcat ("/oldroot/", path); -} - static void write_uid_gid_map (uid_t sandbox_uid, uid_t parent_uid, @@ -879,7 +959,7 @@ write_uid_gid_map (uid_t sandbox_uid, cleanup_free char *gid_map = NULL; cleanup_free char *dir = NULL; cleanup_fd int dir_fd = -1; - uid_t old_fsuid = -1; + uid_t old_fsuid = (uid_t)-1; if (pid == -1) dir = xstrdup ("self"); @@ -928,7 +1008,7 @@ write_uid_gid_map (uid_t sandbox_uid, if (is_privileged) { setfsuid (old_fsuid); - if (setfsuid (-1) != real_uid) + if ((uid_t) setfsuid (-1) != real_uid) die ("Unable to re-set fsuid"); } } @@ -937,9 +1017,14 @@ static void privileged_op (int privileged_op_socket, uint32_t op, uint32_t flags, + uint32_t perms, + size_t size_arg, const char *arg1, const char *arg2) { + bind_mount_result bind_result; + char *failing_path = NULL; + if (privileged_op_socket != -1) { uint32_t buffer[2048]; /* 8k, but is int32 to guarantee nice alignment */ @@ -965,6 +1050,8 @@ privileged_op (int privileged_op_socket, op_buffer->op = op; op_buffer->flags = flags; + op_buffer->perms = perms; + op_buffer->size_arg = size_arg; op_buffer->arg1_offset = arg1_offset; op_buffer->arg2_offset = arg2_offset; if (arg1 != NULL) @@ -972,7 +1059,7 @@ privileged_op (int privileged_op_socket, if (arg2 != NULL) strcpy ((char *) buffer + arg2_offset, arg2); - if (write (privileged_op_socket, buffer, buffer_size) != buffer_size) + if (write (privileged_op_socket, buffer, buffer_size) != (ssize_t)buffer_size) die ("Can't write to privileged_op_socket"); if (read (privileged_op_socket, buffer, 1) != 1) @@ -1003,39 +1090,61 @@ privileged_op (int privileged_op_socket, break; case PRIV_SEP_OP_REMOUNT_RO_NO_RECURSIVE: - if (bind_mount (proc_fd, NULL, arg2, BIND_READONLY) != 0) - die_with_error ("Can't remount readonly on %s", arg2); + bind_result = bind_mount (proc_fd, NULL, arg2, BIND_READONLY, &failing_path); + + if (bind_result != BIND_MOUNT_SUCCESS) + die_with_bind_result (bind_result, errno, failing_path, + "Can't remount readonly on %s", arg2); + + assert (failing_path == NULL); /* otherwise we would have died */ break; case PRIV_SEP_OP_BIND_MOUNT: /* We always bind directories recursively, otherwise this would let us access files that are otherwise covered on the host */ - if (bind_mount (proc_fd, arg1, arg2, BIND_RECURSIVE | flags) != 0) - die_with_error ("Can't bind mount %s on %s", arg1, arg2); + bind_result = bind_mount (proc_fd, arg1, arg2, BIND_RECURSIVE | flags, &failing_path); + + if (bind_result != BIND_MOUNT_SUCCESS) + die_with_bind_result (bind_result, errno, failing_path, + "Can't bind mount %s on %s", arg1, arg2); + + assert (failing_path == NULL); /* otherwise we would have died */ break; case PRIV_SEP_OP_PROC_MOUNT: if (mount ("proc", arg1, "proc", MS_NOSUID | MS_NOEXEC | MS_NODEV, NULL) != 0) - die_with_error ("Can't mount proc on %s", arg1); + die_with_mount_error ("Can't mount proc on %s", arg1); break; case PRIV_SEP_OP_TMPFS_MOUNT: { - cleanup_free char *opt = label_mount ("mode=0755", opt_file_label); + cleanup_free char *mode = NULL; + + /* This check should be unnecessary since we checked this when parsing + * the --size option as well. However, better be safe than sorry. */ + if (size_arg > MAX_TMPFS_BYTES) + die_with_error ("Specified tmpfs size too large (%zu > %zu)", size_arg, MAX_TMPFS_BYTES); + + if (size_arg != 0) + mode = xasprintf ("mode=%#o,size=%zu", perms, size_arg); + else + mode = xasprintf ("mode=%#o", perms); + + cleanup_free char *opt = label_mount (mode, opt_file_label); if (mount ("tmpfs", arg1, "tmpfs", MS_NOSUID | MS_NODEV, opt) != 0) - die_with_error ("Can't mount tmpfs on %s", arg1); + die_with_mount_error ("Can't mount tmpfs on %s", arg1); break; } case PRIV_SEP_OP_DEVPTS_MOUNT: if (mount ("devpts", arg1, "devpts", MS_NOSUID | MS_NOEXEC, "newinstance,ptmxmode=0666,mode=620") != 0) - die_with_error ("Can't mount devpts on %s", arg1); + die_with_mount_error ("Can't mount devpts on %s", arg1); break; case PRIV_SEP_OP_MQUEUE_MOUNT: if (mount ("mqueue", arg1, "mqueue", 0, NULL) != 0) - die_with_error ("Can't mount mqueue on %s", arg1); + die_with_mount_error ("Can't mount mqueue on %s", arg1); break; case PRIV_SEP_OP_SET_HOSTNAME: @@ -1067,7 +1176,7 @@ setup_newroot (bool unshare_pid, cleanup_free char *source = NULL; cleanup_free char *dest = NULL; int source_mode = 0; - int i; + unsigned int i; if (op->source && op->type != SETUP_MAKE_SYMLINK) @@ -1085,8 +1194,22 @@ setup_newroot (bool unshare_pid, if (op->dest && (op->flags & NO_CREATE_DEST) == 0) { + unsigned parent_mode = 0755; + + /* If we're creating a file that is inaccessible by the owning group, + * try to achieve least-astonishment by creating parents also + * inaccessible by that group. */ + if (op->perms >= 0 && + (op->perms & 0070) == 0) + parent_mode &= ~0050U; + + /* The same, but for users other than the owner and group. */ + if (op->perms >= 0 && + (op->perms & 0007) == 0) + parent_mode &= ~0005U; + dest = get_newroot_path (op->dest); - if (mkdir_with_parents (dest, 0755, FALSE) != 0) + if (mkdir_with_parents (dest, parent_mode, FALSE) != 0) die_with_error ("Can't mkdir parents for %s", op->dest); } @@ -1100,19 +1223,19 @@ setup_newroot (bool unshare_pid, if (ensure_dir (dest, 0755) != 0) die_with_error ("Can't mkdir %s", op->dest); } - else if (ensure_file (dest, 0666) != 0) + else if (ensure_file (dest, 0444) != 0) die_with_error ("Can't create file at %s", op->dest); privileged_op (privileged_op_socket, PRIV_SEP_OP_BIND_MOUNT, (op->type == SETUP_RO_BIND_MOUNT ? BIND_READONLY : 0) | (op->type == SETUP_DEV_BIND_MOUNT ? BIND_DEVICES : 0), - source, dest); + 0, 0, source, dest); break; case SETUP_REMOUNT_RO_NO_RECURSIVE: privileged_op (privileged_op_socket, - PRIV_SEP_OP_REMOUNT_RO_NO_RECURSIVE, 0, NULL, dest); + PRIV_SEP_OP_REMOUNT_RO_NO_RECURSIVE, 0, 0, 0, NULL, dest); break; case SETUP_MOUNT_PROC: @@ -1123,14 +1246,14 @@ setup_newroot (bool unshare_pid, { /* Our own procfs */ privileged_op (privileged_op_socket, - PRIV_SEP_OP_PROC_MOUNT, 0, + PRIV_SEP_OP_PROC_MOUNT, 0, 0, 0, dest, NULL); } else { /* Use system procfs, as we share pid namespace anyway */ privileged_op (privileged_op_socket, - PRIV_SEP_OP_BIND_MOUNT, 0, + PRIV_SEP_OP_BIND_MOUNT, 0, 0, 0, "oldroot/proc", dest); } @@ -1138,21 +1261,21 @@ setup_newroot (bool unshare_pid, problematic (for instance /proc/sysrq-trigger lets you shut down the machine if you have write access). We should not have access to these as a non-privileged user, but lets cover them anyway just to make sure */ - const char *cover_proc_dirs[] = { "sys", "sysrq-trigger", "irq", "bus" }; + static const char * const cover_proc_dirs[] = { "sys", "sysrq-trigger", "irq", "bus" }; for (i = 0; i < N_ELEMENTS (cover_proc_dirs); i++) { cleanup_free char *subdir = strconcat3 (dest, "/", cover_proc_dirs[i]); if (access (subdir, W_OK) < 0) { /* The file is already read-only or doesn't exist. */ - if (errno == EACCES || errno == ENOENT) + if (errno == EACCES || errno == ENOENT || errno == EROFS) continue; die_with_error ("Can't access %s", subdir); } privileged_op (privileged_op_socket, - PRIV_SEP_OP_BIND_MOUNT, BIND_READONLY, + PRIV_SEP_OP_BIND_MOUNT, BIND_READONLY, 0, 0, subdir, subdir); } @@ -1163,7 +1286,7 @@ setup_newroot (bool unshare_pid, die_with_error ("Can't mkdir %s", op->dest); privileged_op (privileged_op_socket, - PRIV_SEP_OP_TMPFS_MOUNT, 0, + PRIV_SEP_OP_TMPFS_MOUNT, 0, 0755, 0, dest, NULL); static const char *const devnodes[] = { "null", "zero", "full", "random", "urandom", "tty" }; @@ -1171,10 +1294,10 @@ setup_newroot (bool unshare_pid, { cleanup_free char *node_dest = strconcat3 (dest, "/", devnodes[i]); cleanup_free char *node_src = strconcat ("/oldroot/dev/", devnodes[i]); - if (create_file (node_dest, 0666, NULL) != 0) + if (create_file (node_dest, 0444, NULL) != 0) die_with_error ("Can't create file %s/%s", op->dest, devnodes[i]); privileged_op (privileged_op_socket, - PRIV_SEP_OP_BIND_MOUNT, BIND_DEVICES, + PRIV_SEP_OP_BIND_MOUNT, BIND_DEVICES, 0, 0, node_src, node_dest); } @@ -1208,7 +1331,7 @@ setup_newroot (bool unshare_pid, if (mkdir (pts, 0755) == -1) die_with_error ("Can't create %s/devpts", op->dest); privileged_op (privileged_op_socket, - PRIV_SEP_OP_DEVPTS_MOUNT, 0, pts, NULL); + PRIV_SEP_OP_DEVPTS_MOUNT, 0, 0, 0, pts, NULL); if (symlink ("pts/ptmx", ptmx) != 0) die_with_error ("Can't make symlink at %s/ptmx", op->dest); @@ -1224,22 +1347,26 @@ setup_newroot (bool unshare_pid, cleanup_free char *src_tty_dev = strconcat ("/oldroot", host_tty_dev); cleanup_free char *dest_console = strconcat (dest, "/console"); - if (create_file (dest_console, 0666, NULL) != 0) + if (create_file (dest_console, 0444, NULL) != 0) die_with_error ("creating %s/console", op->dest); privileged_op (privileged_op_socket, - PRIV_SEP_OP_BIND_MOUNT, BIND_DEVICES, + PRIV_SEP_OP_BIND_MOUNT, BIND_DEVICES, 0, 0, src_tty_dev, dest_console); } break; case SETUP_MOUNT_TMPFS: + assert (dest != NULL); + assert (op->perms >= 0); + assert (op->perms <= 07777); + if (ensure_dir (dest, 0755) != 0) die_with_error ("Can't mkdir %s", op->dest); privileged_op (privileged_op_socket, - PRIV_SEP_OP_TMPFS_MOUNT, 0, + PRIV_SEP_OP_TMPFS_MOUNT, 0, op->perms, op->size, dest, NULL); break; @@ -1248,21 +1375,44 @@ setup_newroot (bool unshare_pid, die_with_error ("Can't mkdir %s", op->dest); privileged_op (privileged_op_socket, - PRIV_SEP_OP_MQUEUE_MOUNT, 0, + PRIV_SEP_OP_MQUEUE_MOUNT, 0, 0, 0, dest, NULL); break; case SETUP_MAKE_DIR: - if (ensure_dir (dest, 0755) != 0) + assert (dest != NULL); + assert (op->perms >= 0); + assert (op->perms <= 07777); + + if (ensure_dir (dest, op->perms) != 0) die_with_error ("Can't mkdir %s", op->dest); break; + case SETUP_CHMOD: + assert (op->dest != NULL); + /* We used NO_CREATE_DEST so we have to use get_newroot_path() + * explicitly */ + assert (dest == NULL); + dest = get_newroot_path (op->dest); + assert (dest != NULL); + assert (op->perms >= 0); + assert (op->perms <= 07777); + + if (chmod (dest, op->perms) != 0) + die_with_error ("Can't chmod %#o %s", op->perms, op->dest); + + break; + case SETUP_MAKE_FILE: { cleanup_fd int dest_fd = -1; - dest_fd = creat (dest, 0666); + assert (dest != NULL); + assert (op->perms >= 0); + assert (op->perms <= 07777); + + dest_fd = creat (dest, op->perms); if (dest_fd == -1) die_with_error ("Can't create file %s", op->dest); @@ -1280,10 +1430,18 @@ setup_newroot (bool unshare_pid, cleanup_fd int dest_fd = -1; char tempfile[] = "/bindfileXXXXXX"; + assert (dest != NULL); + assert (op->perms >= 0); + assert (op->perms <= 07777); + dest_fd = mkstemp (tempfile); if (dest_fd == -1) die_with_error ("Can't create tmpfile for %s", op->dest); + if (fchmod (dest_fd, op->perms) != 0) + die_with_error ("Can't set mode %#o on file to be used for %s", + op->perms, op->dest); + if (copy_file_data (op->fd, dest_fd) != 0) die_with_error ("Can't write data to file %s", op->dest); @@ -1292,13 +1450,13 @@ setup_newroot (bool unshare_pid, assert (dest != NULL); - if (ensure_file (dest, 0666) != 0) + if (ensure_file (dest, 0444) != 0) die_with_error ("Can't create file at %s", op->dest); privileged_op (privileged_op_socket, PRIV_SEP_OP_BIND_MOUNT, (op->type == SETUP_MAKE_RO_BIND_FILE ? BIND_READONLY : 0), - tempfile, dest); + 0, 0, tempfile, dest); /* Remove the file so we're sure the app can't get to it in any other way. Its outside the container chroot, so it shouldn't be possible, but lets @@ -1310,13 +1468,31 @@ setup_newroot (bool unshare_pid, case SETUP_MAKE_SYMLINK: assert (op->source != NULL); /* guaranteed by the constructor */ if (symlink (op->source, dest) != 0) - die_with_error ("Can't make symlink at %s", op->dest); + { + if (errno == EEXIST) + { + cleanup_free char *existing = readlink_malloc (dest); + if (existing == NULL) + { + if (errno == EINVAL) + die ("Can't make symlink at %s: destination exists and is not a symlink", op->dest); + else + die_with_error ("Can't make symlink at %s: destination exists, and cannot read symlink target", op->dest); + } + + if (strcmp (existing, op->source) == 0) + break; + + die ("Can't make symlink at %s: existing destination is %s", op->dest, existing); + } + die_with_error ("Can't make symlink at %s", op->dest); + } break; case SETUP_SET_HOSTNAME: assert (op->dest != NULL); /* guaranteed by the constructor */ privileged_op (privileged_op_socket, - PRIV_SEP_OP_SET_HOSTNAME, 0, + PRIV_SEP_OP_SET_HOSTNAME, 0, 0, 0, op->dest, NULL); break; @@ -1325,7 +1501,7 @@ setup_newroot (bool unshare_pid, } } privileged_op (privileged_op_socket, - PRIV_SEP_OP_DONE, 0, NULL, NULL); + PRIV_SEP_OP_DONE, 0, 0, 0, NULL, NULL); } /* Do not leak file descriptors already used by setup_newroot () */ @@ -1372,6 +1548,19 @@ resolve_symlinks_in_ops (void) die_with_error("Can't find source path %s", old_source); } break; + + case SETUP_MOUNT_PROC: + case SETUP_MOUNT_DEV: + case SETUP_MOUNT_TMPFS: + case SETUP_MOUNT_MQUEUE: + case SETUP_MAKE_DIR: + case SETUP_MAKE_FILE: + case SETUP_MAKE_BIND_FILE: + case SETUP_MAKE_RO_BIND_FILE: + case SETUP_MAKE_SYMLINK: + case SETUP_REMOUNT_RO_NO_RECURSIVE: + case SETUP_SET_HOSTNAME: + case SETUP_CHMOD: default: break; } @@ -1398,6 +1587,8 @@ read_priv_sec_op (int read_socket, void *buffer, size_t buffer_size, uint32_t *flags, + uint32_t *perms, + size_t *size_arg, const char **arg1, const char **arg2) { @@ -1414,13 +1605,15 @@ read_priv_sec_op (int read_socket, if (rec_len == 0) exit (1); /* Privileged helper died and printed error, so exit silently */ - if (rec_len < sizeof (PrivSepOp)) + if ((size_t)rec_len < sizeof (PrivSepOp)) die ("Invalid size %zd from unprivileged helper", rec_len); /* Guarantee zero termination of any strings */ ((char *) buffer)[rec_len] = 0; *flags = op->flags; + *perms = op->perms; + *size_arg = op->size_arg; *arg1 = resolve_string_offset (buffer, rec_len, op->arg1_offset); *arg2 = resolve_string_offset (buffer, rec_len, op->arg2_offset); @@ -1434,6 +1627,19 @@ print_version_and_exit (void) exit (0); } +static int +is_modifier_option (const char *option) +{ + return strcmp (option, "--perms") == 0 + || strcmp(option, "--size") == 0; +} + +static void +warn_only_last_option (const char *name) +{ + warn ("Only the last %s option will take effect", name); +} + static void parse_args_recurse (int *argcp, const char ***argvp, @@ -1453,7 +1659,7 @@ parse_args_recurse (int *argcp, * I picked 9000 because the Internet told me to and it was hard to * resist. */ - static const uint32_t MAX_ARGS = 9000; + static const int32_t MAX_ARGS = 9000; if (*total_parsed_argc_p > MAX_ARGS) die ("Exceeded maximum number of arguments %u", MAX_ARGS); @@ -1514,7 +1720,7 @@ parse_args_recurse (int *argcp, p++; } - data_argv = xcalloc (sizeof (char *) * (data_argc + 1)); + data_argv = xcalloc (data_argc + 1, sizeof (char *)); i = 0; p = opt_args_data; @@ -1534,6 +1740,18 @@ parse_args_recurse (int *argcp, argv += 1; argc -= 1; } + else if (strcmp (arg, "--argv0") == 0) + { + if (argc < 2) + die ("--argv0 takes one argument"); + + if (opt_argv0 != NULL) + die ("--argv0 used multiple times"); + + opt_argv0 = argv[1]; + argv++; + argc--; + } else if (strcmp (arg, "--unshare-all") == 0) { /* Keep this in order with the older (legacy) --unshare arguments, @@ -1588,16 +1806,27 @@ parse_args_recurse (int *argcp, if (argc < 2) die ("--chdir takes one argument"); + if (opt_chdir_path != NULL) + warn_only_last_option ("--chdir"); + opt_chdir_path = argv[1]; argv++; argc--; } + else if (strcmp (arg, "--disable-userns") == 0) + { + opt_disable_userns = TRUE; + } + else if (strcmp (arg, "--assert-userns-disabled") == 0) + { + opt_assert_userns_disabled = TRUE; + } else if (strcmp (arg, "--remount-ro") == 0) { if (argc < 2) die ("--remount-ro takes one argument"); - SetupOp *op = setup_op_new (SETUP_REMOUNT_RO_NO_RECURSIVE); + op = setup_op_new (SETUP_REMOUNT_RO_NO_RECURSIVE); op->dest = argv[1]; argv++; @@ -1663,6 +1892,10 @@ parse_args_recurse (int *argcp, { if (argc < 2) die ("--exec-label takes an argument"); + + if (opt_exec_label != NULL) + warn_only_last_option ("--exec-label"); + opt_exec_label = argv[1]; die_unless_label_valid (opt_exec_label); @@ -1673,6 +1906,10 @@ parse_args_recurse (int *argcp, { if (argc < 2) die ("--file-label takes an argument"); + + if (opt_file_label != NULL) + warn_only_last_option ("--file-label"); + opt_file_label = argv[1]; die_unless_label_valid (opt_file_label); if (label_create_file (opt_file_label)) @@ -1701,6 +1938,20 @@ parse_args_recurse (int *argcp, op = setup_op_new (SETUP_MOUNT_TMPFS); op->dest = argv[1]; + /* We historically hard-coded the mode of a tmpfs as 0755. */ + if (next_perms >= 0) + op->perms = next_perms; + else + op->perms = 0755; + + next_perms = -1; + + /* If the option is unset, next_size_arg is zero, which results in + * the default tmpfs size. This is exactly what we want. */ + op->size = next_size_arg; + + next_size_arg = 0; + argv += 1; argc -= 1; } @@ -1723,6 +1974,13 @@ parse_args_recurse (int *argcp, op = setup_op_new (SETUP_MAKE_DIR); op->dest = argv[1]; + /* We historically hard-coded the mode of a --dir as 0755. */ + if (next_perms >= 0) + op->perms = next_perms; + else + op->perms = 0755; + + next_perms = -1; argv += 1; argc -= 1; } @@ -1742,6 +2000,13 @@ parse_args_recurse (int *argcp, op->fd = file_fd; op->dest = argv[2]; + /* We historically hard-coded the mode of a --file as 0666. */ + if (next_perms >= 0) + op->perms = next_perms; + else + op->perms = 0666; + + next_perms = -1; argv += 2; argc -= 2; } @@ -1761,6 +2026,15 @@ parse_args_recurse (int *argcp, op->fd = file_fd; op->dest = argv[2]; + /* This is consistent with previous bubblewrap behaviour: + * before implementing --perms, we took the permissions + * given to us by mkstemp(), which are documented to be 0600. */ + if (next_perms >= 0) + op->perms = next_perms; + else + op->perms = 0600; + + next_perms = -1; argv += 2; argc -= 2; } @@ -1780,6 +2054,15 @@ parse_args_recurse (int *argcp, op->fd = file_fd; op->dest = argv[2]; + /* This is consistent with previous bubblewrap behaviour: + * before implementing --perms, we took the permissions + * given to us by mkstemp(), which are documented to be 0600. */ + if (next_perms >= 0) + op->perms = next_perms; + else + op->perms = 0600; + + next_perms = -1; argv += 2; argc -= 2; } @@ -1813,6 +2096,9 @@ parse_args_recurse (int *argcp, if (argc < 2) die ("--sync-fd takes an argument"); + if (opt_sync_fd != -1) + warn_only_last_option ("--sync-fd"); + the_fd = strtol (argv[1], &endptr, 10); if (argv[1][0] == 0 || endptr[0] != 0 || the_fd < 0) die ("Invalid fd: %s", argv[1]); @@ -1830,6 +2116,9 @@ parse_args_recurse (int *argcp, if (argc < 2) die ("--block-fd takes an argument"); + if (opt_block_fd != -1) + warn_only_last_option ("--block-fd"); + the_fd = strtol (argv[1], &endptr, 10); if (argv[1][0] == 0 || endptr[0] != 0 || the_fd < 0) die ("Invalid fd: %s", argv[1]); @@ -1847,6 +2136,9 @@ parse_args_recurse (int *argcp, if (argc < 2) die ("--userns-block-fd takes an argument"); + if (opt_userns_block_fd != -1) + warn_only_last_option ("--userns-block-fd"); + the_fd = strtol (argv[1], &endptr, 10); if (argv[1][0] == 0 || endptr[0] != 0 || the_fd < 0) die ("Invalid fd: %s", argv[1]); @@ -1864,6 +2156,9 @@ parse_args_recurse (int *argcp, if (argc < 2) die ("--info-fd takes an argument"); + if (opt_info_fd != -1) + warn_only_last_option ("--info-fd"); + the_fd = strtol (argv[1], &endptr, 10); if (argv[1][0] == 0 || endptr[0] != 0 || the_fd < 0) die ("Invalid fd: %s", argv[1]); @@ -1881,6 +2176,9 @@ parse_args_recurse (int *argcp, if (argc < 2) die ("--json-status-fd takes an argument"); + if (opt_json_status_fd != -1) + warn_only_last_option ("--json-status-fd"); + the_fd = strtol (argv[1], &endptr, 10); if (argv[1][0] == 0 || endptr[0] != 0 || the_fd < 0) die ("Invalid fd: %s", argv[1]); @@ -1898,12 +2196,39 @@ parse_args_recurse (int *argcp, if (argc < 2) die ("--seccomp takes an argument"); + if (seccomp_programs != NULL) + die ("--seccomp cannot be combined with --add-seccomp-fd"); + + if (opt_seccomp_fd != -1) + warn_only_last_option ("--seccomp"); + the_fd = strtol (argv[1], &endptr, 10); if (argv[1][0] == 0 || endptr[0] != 0 || the_fd < 0) die ("Invalid fd: %s", argv[1]); opt_seccomp_fd = the_fd; + argv += 1; + argc -= 1; + } + else if (strcmp (arg, "--add-seccomp-fd") == 0) + { + int the_fd; + char *endptr; + + if (argc < 2) + die ("--add-seccomp-fd takes an argument"); + + if (opt_seccomp_fd != -1) + die ("--add-seccomp-fd cannot be combined with --seccomp"); + + the_fd = strtol (argv[1], &endptr, 10); + if (argv[1][0] == 0 || endptr[0] != 0 || the_fd < 0) + die ("Invalid fd: %s", argv[1]); + + /* takes ownership of fd */ + seccomp_program_new (&the_fd); + argv += 1; argc -= 1; } @@ -1915,6 +2240,9 @@ parse_args_recurse (int *argcp, if (argc < 2) die ("--userns takes an argument"); + if (opt_userns_fd != -1) + warn_only_last_option ("--userns"); + the_fd = strtol (argv[1], &endptr, 10); if (argv[1][0] == 0 || endptr[0] != 0 || the_fd < 0) die ("Invalid fd: %s", argv[1]); @@ -1932,6 +2260,9 @@ parse_args_recurse (int *argcp, if (argc < 2) die ("--userns2 takes an argument"); + if (opt_userns2_fd != -1) + warn_only_last_option ("--userns2"); + the_fd = strtol (argv[1], &endptr, 10); if (argv[1][0] == 0 || endptr[0] != 0 || the_fd < 0) die ("Invalid fd: %s", argv[1]); @@ -1949,6 +2280,9 @@ parse_args_recurse (int *argcp, if (argc < 2) die ("--pidns takes an argument"); + if (opt_pidns_fd != -1) + warn_only_last_option ("--pidns"); + the_fd = strtol (argv[1], &endptr, 10); if (argv[1][0] == 0 || endptr[0] != 0 || the_fd < 0) die ("Invalid fd: %s", argv[1]); @@ -1958,6 +2292,10 @@ parse_args_recurse (int *argcp, argv += 1; argc -= 1; } + else if (strcmp (arg, "--clearenv") == 0) + { + xclearenv (); + } else if (strcmp (arg, "--setenv") == 0) { if (argc < 3) @@ -1986,6 +2324,9 @@ parse_args_recurse (int *argcp, if (argc < 2) die ("--uid takes an argument"); + if (opt_sandbox_uid != (uid_t)-1) + warn_only_last_option ("--uid"); + the_uid = strtol (argv[1], &endptr, 10); if (argv[1][0] == 0 || endptr[0] != 0 || the_uid < 0) die ("Invalid uid: %s", argv[1]); @@ -2003,6 +2344,9 @@ parse_args_recurse (int *argcp, if (argc < 2) die ("--gid takes an argument"); + if (opt_sandbox_gid != (gid_t)-1) + warn_only_last_option ("--gid"); + the_gid = strtol (argv[1], &endptr, 10); if (argv[1][0] == 0 || endptr[0] != 0 || the_gid < 0) die ("Invalid gid: %s", argv[1]); @@ -2017,6 +2361,9 @@ parse_args_recurse (int *argcp, if (argc < 2) die ("--hostname takes an argument"); + if (opt_sandbox_hostname != NULL) + warn_only_last_option ("--hostname"); + op = setup_op_new (SETUP_SET_HOSTNAME); op->dest = argv[1]; op->flags = NO_CREATE_DEST; @@ -2090,6 +2437,90 @@ parse_args_recurse (int *argcp, argv += 1; argc -= 1; } + else if (strcmp (arg, "--perms") == 0) + { + unsigned long perms; + char *endptr = NULL; + + if (argc < 2) + die ("--perms takes an argument"); + + if (next_perms != -1) + die ("--perms given twice for the same action"); + + perms = strtoul (argv[1], &endptr, 8); + + if (argv[1][0] == '\0' + || endptr == NULL + || *endptr != '\0' + || perms > 07777) + die ("--perms takes an octal argument <= 07777"); + + next_perms = (int) perms; + + argv += 1; + argc -= 1; + } + else if (strcmp (arg, "--size") == 0) + { + unsigned long long size; + char *endptr = NULL; + + if (is_privileged) + die ("The --size option is not permitted in setuid mode"); + + if (argc < 2) + die ("--size takes an argument"); + + if (next_size_arg != 0) + die ("--size given twice for the same action"); + + errno = 0; /* reset errno so we can detect ERANGE from strtoull */ + + size = strtoull (argv[1], &endptr, 0); + + /* isdigit: Not only check that the first digit is not '\0', but + * simultaneously guard against negative numbers or preceding + * spaces. */ + if (errno != 0 /* from strtoull */ + || !isdigit(argv[1][0]) + || endptr == NULL + || *endptr != '\0' + || size == 0) + die ("--size takes a non-zero number of bytes"); + + if (size > MAX_TMPFS_BYTES) + die ("--size (for tmpfs) is limited to %zu", MAX_TMPFS_BYTES); + + next_size_arg = (size_t) size; + + argv += 1; + argc -= 1; + } + else if (strcmp (arg, "--chmod") == 0) + { + unsigned long perms; + char *endptr = NULL; + + if (argc < 3) + die ("--chmod takes two arguments"); + + perms = strtoul (argv[1], &endptr, 8); + + if (argv[1][0] == '\0' + || endptr == NULL + || *endptr != '\0' + || perms > 07777) + die ("--chmod takes an octal argument <= 07777"); + + op = setup_op_new (SETUP_CHMOD); + op->flags = NO_CREATE_DEST; + op->perms = (int) perms; + op->dest = argv[2]; + + argv += 2; + argc -= 2; + } else if (strcmp (arg, "--") == 0) { argv += 1; @@ -2105,6 +2536,16 @@ parse_args_recurse (int *argcp, break; } + /* If --perms was set for the current action but the current action + * didn't consume the setting, apparently --perms wasn't suitable for + * this action. */ + if (!is_modifier_option(arg) && next_perms >= 0) + die ("--perms must be followed by an option that creates a file"); + + /* Similarly for --size. */ + if (!is_modifier_option(arg) && next_size_arg != 0) + die ("--size must be followed by --tmpfs"); + argv++; argc--; } @@ -2222,11 +2663,9 @@ main (int argc, struct stat sbuf; uint64_t val; int res UNUSED; - cleanup_free char *seccomp_data = NULL; - size_t seccomp_len; - struct sock_fprog seccomp_prog; - cleanup_free char *args_data = NULL; + cleanup_free char *args_data UNUSED = NULL; int intermediate_pids_sockets[2] = {-1, -1}; + const char *exec_path = NULL; /* Handle --version early on before we try to acquire/drop * any capabilities so it works in a build environment; @@ -2244,7 +2683,7 @@ main (int argc, /* Never gain any more privs during exec */ if (prctl (PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0) < 0) - die_with_error ("prctl(PR_SET_NO_NEW_CAPS) failed"); + die_with_error ("prctl(PR_SET_NO_NEW_PRIVS) failed"); /* The initial code is run with high permissions (i.e. CAP_SYS_ADMIN), so take lots of care. */ @@ -2259,7 +2698,7 @@ main (int argc, argv++; argc--; - if (argc == 0) + if (argc <= 0) usage (EXIT_FAILURE, stderr); parse_args (&argc, (const char ***) &argv); @@ -2283,6 +2722,12 @@ main (int argc, if (opt_userns_fd != -1 && opt_unshare_user_try) die ("--userns not compatible --unshare-user-try"); + if (opt_disable_userns && !opt_unshare_user) + die ("--disable-userns requires --unshare-user"); + + if (opt_disable_userns && opt_userns_block_fd != -1) + die ("--disable-userns is not compatible with --userns-block-fd"); + /* Technically using setns() is probably safe even in the privileged * case, because we got passed in a file descriptor to the * namespace, and that can only be gotten if you have ptrace @@ -2293,7 +2738,7 @@ main (int argc, * because (as described in acquire_privs()) setuid bwrap causes * root to own the namespaces that it creates, so you will not be * able to access these namespaces anyway. So, best just not support - * it anway. + * it anyway. */ if (opt_userns_fd != -1 && is_privileged) die ("--userns doesn't work in setuid mode"); @@ -2343,14 +2788,14 @@ main (int argc, opt_unshare_user = TRUE; } - if (argc == 0) + if (argc <= 0) usage (EXIT_FAILURE, stderr); __debug__ (("Creating root mount point\n")); - if (opt_sandbox_uid == -1) + if (opt_sandbox_uid == (uid_t)-1) opt_sandbox_uid = real_uid; - if (opt_sandbox_gid == -1) + if (opt_sandbox_gid == (gid_t)-1) opt_sandbox_gid = real_gid; if (!opt_unshare_user && opt_userns_fd == -1 && opt_sandbox_uid != real_uid) @@ -2463,6 +2908,9 @@ main (int argc, die ("No permissions to creating new namespace, likely because the kernel does not allow non-privileged user namespaces. On e.g. debian this can be enabled with 'sysctl kernel.unprivileged_userns_clone=1'."); } + if (errno == ENOSPC) + die ("Creating new namespace failed: nesting depth or /proc/sys/user/max_*_namespaces exceeded (ENOSPC)"); + die_with_error ("Creating new namespace failed"); } @@ -2629,12 +3077,12 @@ main (int argc, /* Mark everything as slave, so that we still * receive mounts from the real root, but don't * propagate mounts to the real root. */ - if (mount (NULL, "/", NULL, MS_SLAVE | MS_REC, NULL) < 0) - die_with_error ("Failed to make / slave"); + if (mount (NULL, "/", NULL, MS_SILENT | MS_SLAVE | MS_REC, NULL) < 0) + die_with_mount_error ("Failed to make / slave"); /* Create a tmpfs which we will use as / in the namespace */ if (mount ("tmpfs", base_path, "tmpfs", MS_NODEV | MS_NOSUID, NULL) != 0) - die_with_error ("Failed to mount tmpfs"); + die_with_mount_error ("Failed to mount tmpfs"); old_cwd = get_current_dir_name (); @@ -2652,8 +3100,8 @@ main (int argc, if (mkdir ("newroot", 0755)) die_with_error ("Creating newroot failed"); - if (mount ("newroot", "newroot", NULL, MS_MGC_VAL | MS_BIND | MS_REC, NULL) < 0) - die_with_error ("setting up newroot bind"); + if (mount ("newroot", "newroot", NULL, MS_SILENT | MS_MGC_VAL | MS_BIND | MS_REC, NULL) < 0) + die_with_mount_error ("setting up newroot bind"); if (mkdir ("oldroot", 0755)) die_with_error ("Creating oldroot failed"); @@ -2688,7 +3136,8 @@ main (int argc, { int status; uint32_t buffer[2048]; /* 8k, but is int32 to guarantee nice alignment */ - uint32_t op, flags; + uint32_t op, flags, perms; + size_t size_arg; const char *arg1, *arg2; cleanup_fd int unpriv_socket = -1; @@ -2698,8 +3147,8 @@ main (int argc, do { op = read_priv_sec_op (unpriv_socket, buffer, sizeof (buffer), - &flags, &arg1, &arg2); - privileged_op (-1, op, flags, arg1, arg2); + &flags, &perms, &size_arg, &arg1, &arg2); + privileged_op (-1, op, flags, perms, size_arg, arg1, arg2); if (write (unpriv_socket, buffer, 1) != 1) die ("Can't write to op_socket"); } @@ -2717,8 +3166,8 @@ main (int argc, close_ops_fd (); /* The old root better be rprivate or we will send unmount events to the parent namespace */ - if (mount ("oldroot", "oldroot", NULL, MS_REC | MS_PRIVATE, NULL) != 0) - die_with_error ("Failed to make old root rprivate"); + if (mount ("oldroot", "oldroot", NULL, MS_SILENT | MS_REC | MS_PRIVATE, NULL) != 0) + die_with_mount_error ("Failed to make old root rprivate"); if (umount2 ("oldroot", MNT_DETACH)) die_with_error ("unmount old root"); @@ -2741,8 +3190,8 @@ main (int argc, * Both runc and LXC are using this "alternative" method for * setting up the root of the container: * - * https://github.com/opencontainers/runc/blob/master/libcontainer/rootfs_linux.go#L671 - * https://github.com/lxc/lxc/blob/master/src/lxc/conf.c#L1121 + * https://github.com/opencontainers/runc/blob/HEAD/libcontainer/rootfs_linux.go#L671 + * https://github.com/lxc/lxc/blob/HEAD/src/lxc/conf.c#L1121 */ if (pivot_root (".", ".") != 0) die_with_error ("pivot_root(/newroot)"); @@ -2757,22 +3206,55 @@ main (int argc, if (opt_userns2_fd > 0 && setns (opt_userns2_fd, CLONE_NEWUSER) != 0) die_with_error ("Setting userns2 failed"); - if (opt_unshare_user && - (ns_uid != opt_sandbox_uid || ns_gid != opt_sandbox_gid) && - opt_userns_block_fd == -1) + if (opt_unshare_user && opt_userns_block_fd == -1 && + (ns_uid != opt_sandbox_uid || ns_gid != opt_sandbox_gid || + opt_disable_userns)) { - /* Now that devpts is mounted and we've no need for mount - permissions we can create a new userspace and map our uid - 1:1 */ + /* Here we create a second level userns inside the first one. This is + used for one or more of these reasons: + + * The 1st level namespace has a different uid/gid than the + requested due to requirements of beeing root in the first + level due for mounting devpts (opt_needs_devpts). + + * To disable user namespaces we set max_user_namespaces and then + create the second namespace so that the sandbox cannot undo this + change. + */ + + if (opt_disable_userns) + { + cleanup_fd int sysctl_fd = -1; + + sysctl_fd = openat (proc_fd, "sys/user/max_user_namespaces", O_WRONLY); + + if (sysctl_fd < 0) + die_with_error ("cannot open /proc/sys/user/max_user_namespaces"); + + if (write_to_fd (sysctl_fd, "1", 1) < 0) + die_with_error ("sysctl user.max_user_namespaces = 1"); + } if (unshare (CLONE_NEWUSER)) die_with_error ("unshare user ns"); + /* We're in a new user namespace, we got back the bounding set, clear it again */ + drop_cap_bounding_set (FALSE); + write_uid_gid_map (opt_sandbox_uid, ns_uid, opt_sandbox_gid, ns_gid, -1, FALSE, FALSE); } + if (opt_disable_userns || opt_assert_userns_disabled) + { + /* Verify that we can't make a new userns again */ + res = unshare (CLONE_NEWUSER); + + if (res == 0) + die ("creation of new user namespaces was not disabled as requested"); + } + /* All privileged ops are done now, so drop caps we don't need */ drop_privs (!is_privileged, TRUE); @@ -2785,17 +3267,9 @@ main (int argc, if (opt_seccomp_fd != -1) { - seccomp_data = load_file_data (opt_seccomp_fd, &seccomp_len); - if (seccomp_data == NULL) - die_with_error ("Can't read seccomp data"); - - if (seccomp_len % 8 != 0) - die ("Invalid seccomp data, must be multiple of 8"); - - seccomp_prog.len = seccomp_len / 8; - seccomp_prog.filter = (struct sock_filter *) seccomp_data; - - close (opt_seccomp_fd); + assert (seccomp_programs == NULL); + /* takes ownership of fd */ + seccomp_program_new (&opt_seccomp_fd); } umask (old_umask); @@ -2864,7 +3338,7 @@ main (int argc, fdwalk (proc_fd, close_extra_fds, dont_close); } - return do_init (event_fd, pid, seccomp_data != NULL ? &seccomp_prog : NULL); + return do_init (event_fd, pid); } } @@ -2892,9 +3366,7 @@ main (int argc, /* Should be the last thing before execve() so that filters don't * need to handle anything above */ - if (seccomp_data != NULL && - prctl (PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &seccomp_prog) != 0) - die_with_error ("prctl(PR_SET_SECCOMP)"); + seccomp_programs_apply (); if (setup_finished_pipe[1] != -1) { @@ -2904,7 +3376,11 @@ main (int argc, we don't want to error out here */ } - if (execvp (argv[0], argv) == -1) + exec_path = argv[0]; + if (opt_argv0 != NULL) + argv[0] = (char *) opt_argv0; + + if (execvp (exec_path, argv) == -1) { if (setup_finished_pipe[1] != -1) { @@ -2915,7 +3391,7 @@ main (int argc, /* Ignore res, if e.g. the parent died and closed setup_finished_pipe[0] we don't want to error out here */ } - die_with_error ("execvp %s", argv[0]); + die_with_error ("execvp %s", exec_path); } return 0; diff --git a/bubblewrap.jpg 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-scriptversion=2018-03-07.03; # UTC - -# Copyright (C) 1999-2018 Free Software Foundation, Inc. -# Written by Tom Tromey . -# -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2, or (at your option) -# any later version. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program. If not, see . - -# As a special exception to the GNU General Public License, if you -# distribute this file as part of a program that contains a -# configuration script generated by Autoconf, you may include it under -# the same distribution terms that you use for the rest of that program. - -# This file is maintained in Automake, please report -# bugs to or send patches to -# . - -nl=' -' - -# We need space, tab and new line, in precisely that order. Quoting is -# there to prevent tools from complaining about whitespace usage. -IFS=" "" $nl" - -file_conv= - -# func_file_conv build_file lazy -# Convert a $build file to $host form and store it in $file -# Currently only supports Windows hosts. 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- 2020:CLIX:*:* | 2430:CLIX:*:*) - echo clipper-intergraph-clix${UNAME_RELEASE} - exit ;; - mips:*:*:UMIPS | mips:*:*:RISCos) - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c -#ifdef __cplusplus -#include /* for printf() prototype */ - int main (int argc, char *argv[]) { -#else - int main (argc, argv) int argc; char *argv[]; { -#endif - #if defined (host_mips) && defined (MIPSEB) - #if defined (SYSTYPE_SYSV) - printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0); - #endif - #if defined (SYSTYPE_SVR4) - printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0); - #endif - #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD) - printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0); - #endif - #endif - exit (-1); - } -EOF - $CC_FOR_BUILD -o $dummy $dummy.c && - dummyarg=`echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` && - SYSTEM_NAME=`$dummy $dummyarg` && - { echo "$SYSTEM_NAME"; exit; } - echo mips-mips-riscos${UNAME_RELEASE} - exit ;; - Motorola:PowerMAX_OS:*:*) - echo powerpc-motorola-powermax - exit ;; - Motorola:*:4.3:PL8-*) - echo powerpc-harris-powermax - exit ;; - Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*) - echo powerpc-harris-powermax - exit ;; - Night_Hawk:Power_UNIX:*:*) - echo powerpc-harris-powerunix - exit ;; - m88k:CX/UX:7*:*) - echo m88k-harris-cxux7 - exit ;; - m88k:*:4*:R4*) - echo m88k-motorola-sysv4 - exit ;; - m88k:*:3*:R3*) - echo m88k-motorola-sysv3 - exit ;; - AViiON:dgux:*:*) - # DG/UX returns AViiON for all architectures - UNAME_PROCESSOR=`/usr/bin/uname -p` - if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ] - then - if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \ - [ ${TARGET_BINARY_INTERFACE}x = x ] - then - echo m88k-dg-dgux${UNAME_RELEASE} - else - echo m88k-dg-dguxbcs${UNAME_RELEASE} - fi - else - echo i586-dg-dgux${UNAME_RELEASE} - fi - exit ;; - M88*:DolphinOS:*:*) # DolphinOS (SVR3) - echo m88k-dolphin-sysv3 - exit ;; - M88*:*:R3*:*) - # Delta 88k system running SVR3 - echo m88k-motorola-sysv3 - exit ;; - XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3) - echo m88k-tektronix-sysv3 - exit ;; - Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD) - echo m68k-tektronix-bsd - exit ;; - *:IRIX*:*:*) - echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'` - exit ;; - ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX. - echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id - exit ;; # Note that: echo "'`uname -s`'" gives 'AIX ' - i*86:AIX:*:*) - echo i386-ibm-aix - exit ;; - ia64:AIX:*:*) - if [ -x /usr/bin/oslevel ] ; then - IBM_REV=`/usr/bin/oslevel` - else - IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} - fi - echo ${UNAME_MACHINE}-ibm-aix${IBM_REV} - exit ;; - *:AIX:2:3) - if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - #include - - main() - { - if (!__power_pc()) - exit(1); - puts("powerpc-ibm-aix3.2.5"); - exit(0); - } -EOF - if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` - then - echo "$SYSTEM_NAME" - else - echo rs6000-ibm-aix3.2.5 - fi - elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then - echo rs6000-ibm-aix3.2.4 - else - echo rs6000-ibm-aix3.2 - fi - exit ;; - *:AIX:*:[4567]) - IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'` - if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then - IBM_ARCH=rs6000 - else - IBM_ARCH=powerpc - fi - if [ -x /usr/bin/lslpp ] ; then - IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc | - awk -F: '{ print $3 }' | sed s/[0-9]*$/0/` - else - IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} - fi - echo ${IBM_ARCH}-ibm-aix${IBM_REV} - exit ;; - *:AIX:*:*) - echo rs6000-ibm-aix - exit ;; - ibmrt:4.4BSD:*|romp-ibm:BSD:*) - echo romp-ibm-bsd4.4 - exit ;; - ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and - echo romp-ibm-bsd${UNAME_RELEASE} # 4.3 with uname added to - exit ;; # report: romp-ibm BSD 4.3 - *:BOSX:*:*) - echo rs6000-bull-bosx - exit ;; - DPX/2?00:B.O.S.:*:*) - echo m68k-bull-sysv3 - exit ;; - 9000/[34]??:4.3bsd:1.*:*) - echo m68k-hp-bsd - exit ;; - hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*) - echo m68k-hp-bsd4.4 - exit ;; - 9000/[34678]??:HP-UX:*:*) - HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` - case "${UNAME_MACHINE}" in - 9000/31? ) HP_ARCH=m68000 ;; - 9000/[34]?? ) HP_ARCH=m68k ;; - 9000/[678][0-9][0-9]) - if [ -x /usr/bin/getconf ]; then - sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null` - sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` - case "${sc_cpu_version}" in - 523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0 - 528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1 - 532) # CPU_PA_RISC2_0 - case "${sc_kernel_bits}" in - 32) HP_ARCH="hppa2.0n" ;; - 64) HP_ARCH="hppa2.0w" ;; - '') HP_ARCH="hppa2.0" ;; # HP-UX 10.20 - esac ;; - esac - fi - if [ "${HP_ARCH}" = "" ]; then - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - - #define _HPUX_SOURCE - #include - #include - - int main () - { - #if defined(_SC_KERNEL_BITS) - long bits = sysconf(_SC_KERNEL_BITS); - #endif - long cpu = sysconf (_SC_CPU_VERSION); - - switch (cpu) - { - case CPU_PA_RISC1_0: puts ("hppa1.0"); break; - case CPU_PA_RISC1_1: puts ("hppa1.1"); break; - case CPU_PA_RISC2_0: - #if defined(_SC_KERNEL_BITS) - switch (bits) - { - case 64: puts ("hppa2.0w"); break; - case 32: puts ("hppa2.0n"); break; - default: puts ("hppa2.0"); break; - } break; - #else /* !defined(_SC_KERNEL_BITS) */ - puts ("hppa2.0"); break; - #endif - default: puts ("hppa1.0"); break; - } - exit (0); - } -EOF - (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy` - test -z "$HP_ARCH" && HP_ARCH=hppa - fi ;; - esac - if [ ${HP_ARCH} = "hppa2.0w" ] - then - eval $set_cc_for_build - - # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating - # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler - # generating 64-bit code. GNU and HP use different nomenclature: - # - # $ CC_FOR_BUILD=cc ./config.guess - # => hppa2.0w-hp-hpux11.23 - # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess - # => hppa64-hp-hpux11.23 - - if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | - grep -q __LP64__ - then - HP_ARCH="hppa2.0w" - else - HP_ARCH="hppa64" - fi - fi - echo ${HP_ARCH}-hp-hpux${HPUX_REV} - exit ;; - ia64:HP-UX:*:*) - HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` - echo ia64-hp-hpux${HPUX_REV} - exit ;; - 3050*:HI-UX:*:*) - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - #include - int - main () - { - long cpu = sysconf (_SC_CPU_VERSION); - /* The order matters, because CPU_IS_HP_MC68K erroneously returns - true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct - results, however. */ - if (CPU_IS_PA_RISC (cpu)) - { - switch (cpu) - { - case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break; - case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break; - case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break; - default: puts ("hppa-hitachi-hiuxwe2"); break; - } - } - else if (CPU_IS_HP_MC68K (cpu)) - puts ("m68k-hitachi-hiuxwe2"); - else puts ("unknown-hitachi-hiuxwe2"); - exit (0); - } -EOF - $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` && - { echo "$SYSTEM_NAME"; exit; } - echo unknown-hitachi-hiuxwe2 - exit ;; - 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* ) - echo hppa1.1-hp-bsd - exit ;; - 9000/8??:4.3bsd:*:*) - echo hppa1.0-hp-bsd - exit ;; - *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*) - echo hppa1.0-hp-mpeix - exit ;; - hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* ) - echo hppa1.1-hp-osf - exit ;; - hp8??:OSF1:*:*) - echo hppa1.0-hp-osf - exit ;; - i*86:OSF1:*:*) - if [ -x /usr/sbin/sysversion ] ; then - echo ${UNAME_MACHINE}-unknown-osf1mk - else - echo ${UNAME_MACHINE}-unknown-osf1 - fi - exit ;; - parisc*:Lites*:*:*) - echo hppa1.1-hp-lites - exit ;; - C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*) - echo c1-convex-bsd - exit ;; - C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*) - if getsysinfo -f scalar_acc - then echo c32-convex-bsd - else echo c2-convex-bsd - fi - exit ;; - C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*) - echo c34-convex-bsd - exit ;; - C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*) - echo c38-convex-bsd - exit ;; - C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*) - echo c4-convex-bsd - exit ;; - CRAY*Y-MP:*:*:*) - echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - CRAY*[A-Z]90:*:*:*) - echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \ - | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \ - -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \ - -e 's/\.[^.]*$/.X/' - exit ;; - CRAY*TS:*:*:*) - echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - CRAY*T3E:*:*:*) - echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - CRAY*SV1:*:*:*) - echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - *:UNICOS/mp:*:*) - echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' - exit ;; - F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*) - FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` - FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` - FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'` - echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" - exit ;; - 5000:UNIX_System_V:4.*:*) - FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` - FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'` - echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" - exit ;; - i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*) - echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE} - exit ;; - sparc*:BSD/OS:*:*) - echo sparc-unknown-bsdi${UNAME_RELEASE} - exit ;; - *:BSD/OS:*:*) - echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE} - exit ;; - *:FreeBSD:*:*) - UNAME_PROCESSOR=`/usr/bin/uname -p` - case ${UNAME_PROCESSOR} in - amd64) - echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; - *) - echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;; - esac - exit ;; - i*:CYGWIN*:*) - echo ${UNAME_MACHINE}-pc-cygwin - exit ;; - *:MINGW64*:*) - echo ${UNAME_MACHINE}-pc-mingw64 - exit ;; - *:MINGW*:*) - echo ${UNAME_MACHINE}-pc-mingw32 - exit ;; - *:MSYS*:*) - echo ${UNAME_MACHINE}-pc-msys - exit ;; - i*:windows32*:*) - # uname -m includes "-pc" on this system. - echo ${UNAME_MACHINE}-mingw32 - exit ;; - i*:PW*:*) - echo ${UNAME_MACHINE}-pc-pw32 - exit ;; - *:Interix*:*) - case ${UNAME_MACHINE} in - x86) - echo i586-pc-interix${UNAME_RELEASE} - exit ;; - authenticamd | genuineintel | EM64T) - echo x86_64-unknown-interix${UNAME_RELEASE} - exit ;; - IA64) - echo ia64-unknown-interix${UNAME_RELEASE} - exit ;; - esac ;; - [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*) - echo i${UNAME_MACHINE}-pc-mks - exit ;; - 8664:Windows_NT:*) - echo x86_64-pc-mks - exit ;; - i*:Windows_NT*:* | Pentium*:Windows_NT*:*) - # How do we know it's Interix rather than the generic POSIX subsystem? - # It also conflicts with pre-2.0 versions of AT&T UWIN. Should we - # UNAME_MACHINE based on the output of uname instead of i386? - echo i586-pc-interix - exit ;; - i*:UWIN*:*) - echo ${UNAME_MACHINE}-pc-uwin - exit ;; - amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*) - echo x86_64-unknown-cygwin - exit ;; - p*:CYGWIN*:*) - echo powerpcle-unknown-cygwin - exit ;; - prep*:SunOS:5.*:*) - echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` - exit ;; - *:GNU:*:*) - # the GNU system - echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-${LIBC}`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'` - exit ;; - *:GNU/*:*:*) - # other systems with GNU libc and userland - echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-${LIBC} - exit ;; - i*86:Minix:*:*) - echo ${UNAME_MACHINE}-pc-minix - exit ;; - aarch64:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - aarch64_be:Linux:*:*) - UNAME_MACHINE=aarch64_be - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - alpha:Linux:*:*) - case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in - EV5) UNAME_MACHINE=alphaev5 ;; - EV56) UNAME_MACHINE=alphaev56 ;; - PCA56) UNAME_MACHINE=alphapca56 ;; - PCA57) UNAME_MACHINE=alphapca56 ;; - EV6) UNAME_MACHINE=alphaev6 ;; - EV67) UNAME_MACHINE=alphaev67 ;; - EV68*) UNAME_MACHINE=alphaev68 ;; - esac - objdump --private-headers /bin/sh | grep -q ld.so.1 - if test "$?" = 0 ; then LIBC="gnulibc1" ; fi - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - arc:Linux:*:* | arceb:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - arm*:Linux:*:*) - eval $set_cc_for_build - if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \ - | grep -q __ARM_EABI__ - then - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - else - if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \ - | grep -q __ARM_PCS_VFP - then - echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabi - else - echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabihf - fi - fi - exit ;; - avr32*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - cris:Linux:*:*) - echo ${UNAME_MACHINE}-axis-linux-${LIBC} - exit ;; - crisv32:Linux:*:*) - echo ${UNAME_MACHINE}-axis-linux-${LIBC} - exit ;; - frv:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - hexagon:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - i*86:Linux:*:*) - echo ${UNAME_MACHINE}-pc-linux-${LIBC} - exit ;; - ia64:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - m32r*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - m68*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - mips:Linux:*:* | mips64:Linux:*:*) - eval $set_cc_for_build - sed 's/^ //' << EOF >$dummy.c - #undef CPU - #undef ${UNAME_MACHINE} - #undef ${UNAME_MACHINE}el - #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) - CPU=${UNAME_MACHINE}el - #else - #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) - CPU=${UNAME_MACHINE} - #else - CPU= - #endif - #endif -EOF - eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'` - test x"${CPU}" != x && { echo "${CPU}-unknown-linux-${LIBC}"; exit; } - ;; - openrisc*:Linux:*:*) - echo or1k-unknown-linux-${LIBC} - exit ;; - or32:Linux:*:* | or1k*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - padre:Linux:*:*) - echo sparc-unknown-linux-${LIBC} - exit ;; - parisc64:Linux:*:* | hppa64:Linux:*:*) - echo hppa64-unknown-linux-${LIBC} - exit ;; - parisc:Linux:*:* | hppa:Linux:*:*) - # Look for CPU level - case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in - PA7*) echo hppa1.1-unknown-linux-${LIBC} ;; - PA8*) echo hppa2.0-unknown-linux-${LIBC} ;; - *) echo hppa-unknown-linux-${LIBC} ;; - esac - exit ;; - ppc64:Linux:*:*) - echo powerpc64-unknown-linux-${LIBC} - exit ;; - ppc:Linux:*:*) - echo powerpc-unknown-linux-${LIBC} - exit ;; - ppc64le:Linux:*:*) - echo powerpc64le-unknown-linux-${LIBC} - exit ;; - ppcle:Linux:*:*) - echo powerpcle-unknown-linux-${LIBC} - exit ;; - s390:Linux:*:* | s390x:Linux:*:*) - echo ${UNAME_MACHINE}-ibm-linux-${LIBC} - exit ;; - sh64*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - sh*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - sparc:Linux:*:* | sparc64:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - tile*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - vax:Linux:*:*) - echo ${UNAME_MACHINE}-dec-linux-${LIBC} - exit ;; - x86_64:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - xtensa*:Linux:*:*) - echo ${UNAME_MACHINE}-unknown-linux-${LIBC} - exit ;; - i*86:DYNIX/ptx:4*:*) - # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there. - # earlier versions are messed up and put the nodename in both - # sysname and nodename. - echo i386-sequent-sysv4 - exit ;; - i*86:UNIX_SV:4.2MP:2.*) - # Unixware is an offshoot of SVR4, but it has its own version - # number series starting with 2... - # I am not positive that other SVR4 systems won't match this, - # I just have to hope. -- rms. - # Use sysv4.2uw... so that sysv4* matches it. - echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION} - exit ;; - i*86:OS/2:*:*) - # If we were able to find `uname', then EMX Unix compatibility - # is probably installed. - echo ${UNAME_MACHINE}-pc-os2-emx - exit ;; - i*86:XTS-300:*:STOP) - echo ${UNAME_MACHINE}-unknown-stop - exit ;; - i*86:atheos:*:*) - echo ${UNAME_MACHINE}-unknown-atheos - exit ;; - i*86:syllable:*:*) - echo ${UNAME_MACHINE}-pc-syllable - exit ;; - i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*) - echo i386-unknown-lynxos${UNAME_RELEASE} - exit ;; - i*86:*DOS:*:*) - echo ${UNAME_MACHINE}-pc-msdosdjgpp - exit ;; - i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*) - UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'` - if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then - echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL} - else - echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL} - fi - exit ;; - i*86:*:5:[678]*) - # UnixWare 7.x, OpenUNIX and OpenServer 6. - case `/bin/uname -X | grep "^Machine"` in - *486*) UNAME_MACHINE=i486 ;; - *Pentium) UNAME_MACHINE=i586 ;; - *Pent*|*Celeron) UNAME_MACHINE=i686 ;; 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See the GNU -# General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, see . -# -# As a special exception to the GNU General Public License, if you -# distribute this file as part of a program that contains a -# configuration script generated by Autoconf, you may include it under -# the same distribution terms that you use for the rest of that -# program. 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We also -### recognize some manufacturers as not being operating systems, so we -### can provide default operating systems below. -case $os in - -sun*os*) - # Prevent following clause from handling this invalid input. - ;; - -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \ - -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \ - -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \ - -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\ - -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \ - -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \ - -apple | -axis | -knuth | -cray | -microblaze*) - os= - basic_machine=$1 - ;; - -bluegene*) - os=-cnk - ;; - -sim | -cisco | -oki | -wec | -winbond) - os= - basic_machine=$1 - ;; - -scout) - ;; - -wrs) - os=-vxworks - basic_machine=$1 - ;; - -chorusos*) - os=-chorusos - basic_machine=$1 - ;; - -chorusrdb) - os=-chorusrdb - basic_machine=$1 - ;; - -hiux*) - os=-hiuxwe2 - ;; 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- -lynx*) - os=-lynxos - ;; - -ptx*) - basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'` - ;; - -windowsnt*) - os=`echo $os | sed -e 's/windowsnt/winnt/'` - ;; - -psos*) - os=-psos - ;; - -mint | -mint[0-9]*) - basic_machine=m68k-atari - os=-mint - ;; -esac - -# Decode aliases for certain CPU-COMPANY combinations. -case $basic_machine in - # Recognize the basic CPU types without company name. - # Some are omitted here because they have special meanings below. - 1750a | 580 \ - | a29k \ - | aarch64 | aarch64_be \ - | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \ - | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \ - | am33_2.0 \ - | arc | arceb \ - | arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \ - | avr | avr32 \ - | be32 | be64 \ - | bfin \ - | c4x | c8051 | clipper \ - | d10v | d30v | dlx | dsp16xx \ - | epiphany \ - | fido | fr30 | frv | ft32 \ - | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \ - | hexagon \ - | i370 | i860 | i960 | ia64 \ - | ip2k | iq2000 \ - | k1om \ - | le32 | le64 \ - | lm32 \ - | m32c | m32r | m32rle | m68000 | m68k | m88k \ - | maxq | mb | microblaze | microblazeel | mcore | mep | metag \ - | mips | mipsbe | mipseb | mipsel | mipsle \ - | mips16 \ - | mips64 | mips64el \ - | mips64octeon | mips64octeonel \ - | mips64orion | mips64orionel \ - | mips64r5900 | mips64r5900el \ - | mips64vr | mips64vrel \ - | mips64vr4100 | mips64vr4100el \ - | mips64vr4300 | mips64vr4300el \ - | mips64vr5000 | mips64vr5000el \ - | mips64vr5900 | mips64vr5900el \ - | mipsisa32 | mipsisa32el \ - | mipsisa32r2 | mipsisa32r2el \ - | mipsisa32r6 | mipsisa32r6el \ - | mipsisa64 | mipsisa64el \ - | mipsisa64r2 | mipsisa64r2el \ - | mipsisa64r6 | mipsisa64r6el \ - | mipsisa64sb1 | mipsisa64sb1el \ - | mipsisa64sr71k | mipsisa64sr71kel \ - | mipsr5900 | mipsr5900el \ - | mipstx39 | mipstx39el \ - | mn10200 | mn10300 \ - | moxie \ - | mt \ - | msp430 \ - | nds32 | nds32le | nds32be \ - | nios | nios2 | nios2eb | nios2el \ - | ns16k | ns32k \ - | open8 | or1k | or1knd | or32 \ - | pdp10 | pdp11 | pj | pjl \ - | powerpc | powerpc64 | powerpc64le | powerpcle \ - | pyramid \ - | riscv32 | riscv64 \ - | rl78 | rx \ - | score \ - | sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \ - | sh64 | sh64le \ - | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \ - | sparcv8 | sparcv9 | sparcv9b | sparcv9v \ - | spu \ - | tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \ - | ubicom32 \ - | v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \ - | visium \ - | we32k \ - | x86 | xc16x | xstormy16 | xtensa \ - | z8k | z80) - basic_machine=$basic_machine-unknown - ;; - c54x) - basic_machine=tic54x-unknown - ;; - c55x) - basic_machine=tic55x-unknown - ;; - c6x) - basic_machine=tic6x-unknown - ;; - leon|leon[3-9]) - basic_machine=sparc-$basic_machine - ;; - m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip) - basic_machine=$basic_machine-unknown - os=-none - ;; - m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k) - ;; - ms1) - basic_machine=mt-unknown - ;; - - strongarm | thumb | xscale) - basic_machine=arm-unknown - ;; - xgate) - basic_machine=$basic_machine-unknown - os=-none - ;; - xscaleeb) - basic_machine=armeb-unknown - ;; - - xscaleel) - basic_machine=armel-unknown - ;; - - # We use `pc' rather than `unknown' - # because (1) that's what they normally are, and - # (2) the word "unknown" tends to confuse beginning users. - i*86 | x86_64) - basic_machine=$basic_machine-pc - ;; - # Object if more than one company name word. - *-*-*) - echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2 - exit 1 - ;; - # Recognize the basic CPU types with company name. - 580-* \ - | a29k-* \ - | aarch64-* | aarch64_be-* \ - | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \ - | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \ - | alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \ - | arm-* | armbe-* | armle-* | armeb-* | armv*-* \ - | avr-* | avr32-* \ - | be32-* | be64-* \ - | bfin-* | bs2000-* \ - | c[123]* | c30-* | [cjt]90-* | c4x-* \ - | c8051-* | clipper-* | craynv-* | cydra-* \ - | d10v-* | d30v-* | dlx-* \ - | elxsi-* \ - | f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \ - | h8300-* | h8500-* \ - | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \ - | hexagon-* \ - | i*86-* | i860-* | i960-* | ia64-* \ - | ip2k-* | iq2000-* \ - | k1om-* \ - | le32-* | le64-* \ - | lm32-* \ - | m32c-* | m32r-* | m32rle-* \ - | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \ - | m88110-* | m88k-* | maxq-* | mcore-* | metag-* \ - | microblaze-* | microblazeel-* \ - | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \ - | mips16-* \ - | mips64-* | mips64el-* \ - | mips64octeon-* | mips64octeonel-* \ - | mips64orion-* | mips64orionel-* \ - | mips64r5900-* | mips64r5900el-* \ - | mips64vr-* | mips64vrel-* \ - | mips64vr4100-* | mips64vr4100el-* \ - | mips64vr4300-* | mips64vr4300el-* \ - | mips64vr5000-* | mips64vr5000el-* \ - | mips64vr5900-* | mips64vr5900el-* \ - | mipsisa32-* | mipsisa32el-* \ - | mipsisa32r2-* | mipsisa32r2el-* \ - | mipsisa32r6-* | mipsisa32r6el-* \ - | mipsisa64-* | mipsisa64el-* \ - | mipsisa64r2-* | mipsisa64r2el-* \ - | mipsisa64r6-* | mipsisa64r6el-* \ - | mipsisa64sb1-* | mipsisa64sb1el-* \ - | mipsisa64sr71k-* | mipsisa64sr71kel-* \ - | mipsr5900-* | mipsr5900el-* \ - | mipstx39-* | mipstx39el-* \ - | mmix-* \ - | mt-* \ - | msp430-* \ - | nds32-* | nds32le-* | nds32be-* \ - | nios-* | nios2-* | nios2eb-* | nios2el-* \ - | none-* | np1-* | ns16k-* | ns32k-* \ - | open8-* \ - | or1k*-* \ - | orion-* \ - | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \ - | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \ - | pyramid-* \ - | rl78-* | romp-* | rs6000-* | rx-* \ - | sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \ - | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \ - | sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \ - | sparclite-* \ - | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \ - | tahoe-* \ - | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \ - | tile*-* \ - | tron-* \ - | ubicom32-* \ - | v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \ - | vax-* \ - | visium-* \ - | we32k-* \ - | x86-* | x86_64-* | xc16x-* | xps100-* \ - | xstormy16-* | xtensa*-* \ - | ymp-* \ - | z8k-* | z80-*) - ;; - # Recognize the basic CPU types without company name, with glob match. - xtensa*) - basic_machine=$basic_machine-unknown - ;; - # Recognize the various machine names and aliases which stand - # for a CPU type and a company and sometimes even an OS. - 386bsd) - basic_machine=i386-unknown - os=-bsd - ;; - 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc) - basic_machine=m68000-att - ;; - 3b*) - basic_machine=we32k-att - ;; - a29khif) - basic_machine=a29k-amd - os=-udi - ;; - abacus) - basic_machine=abacus-unknown - ;; - adobe68k) - basic_machine=m68010-adobe - os=-scout - ;; - alliant | fx80) - basic_machine=fx80-alliant - ;; - altos | altos3068) - basic_machine=m68k-altos - ;; - am29k) - basic_machine=a29k-none - os=-bsd - ;; - amd64) - basic_machine=x86_64-pc - ;; - amd64-*) - basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - amdahl) - basic_machine=580-amdahl - os=-sysv - ;; - amiga | amiga-*) - basic_machine=m68k-unknown - ;; - amigaos | amigados) - basic_machine=m68k-unknown - os=-amigaos - ;; - amigaunix | amix) - basic_machine=m68k-unknown - os=-sysv4 - ;; - apollo68) - basic_machine=m68k-apollo - os=-sysv - ;; - apollo68bsd) - basic_machine=m68k-apollo - os=-bsd - ;; - aros) - basic_machine=i386-pc - os=-aros - ;; - aux) - basic_machine=m68k-apple - os=-aux - ;; - balance) - basic_machine=ns32k-sequent - os=-dynix - ;; - blackfin) - basic_machine=bfin-unknown - os=-linux - ;; - blackfin-*) - basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'` - os=-linux - ;; - bluegene*) - basic_machine=powerpc-ibm - os=-cnk - ;; - c54x-*) - basic_machine=tic54x-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - c55x-*) - basic_machine=tic55x-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - c6x-*) - basic_machine=tic6x-`echo $basic_machine | sed 's/^[^-]*-//'` - ;; - c90) - basic_machine=c90-cray - os=-unicos - ;; - cegcc) - basic_machine=arm-unknown - os=-cegcc - ;; - convex-c1) - basic_machine=c1-convex - os=-bsd - ;; - convex-c2) - basic_machine=c2-convex - os=-bsd - ;; - convex-c32) - basic_machine=c32-convex - os=-bsd - ;; - convex-c34) - basic_machine=c34-convex - os=-bsd - ;; - convex-c38) - basic_machine=c38-convex - os=-bsd - ;; - cray | j90) - basic_machine=j90-cray - os=-unicos - ;; - craynv) - basic_machine=craynv-cray - os=-unicosmp - ;; - cr16 | cr16-*) - basic_machine=cr16-unknown - os=-elf - ;; - crds | unos) - basic_machine=m68k-crds - ;; - crisv32 | crisv32-* | etraxfs*) - basic_machine=crisv32-axis - ;; - cris | cris-* | etrax*) - basic_machine=cris-axis - ;; - crx) - basic_machine=crx-unknown - os=-elf - ;; - da30 | da30-*) - basic_machine=m68k-da30 - ;; - decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn) - basic_machine=mips-dec - ;; - decsystem10* | dec10*) - basic_machine=pdp10-dec - os=-tops10 - ;; - decsystem20* | dec20*) - basic_machine=pdp10-dec - os=-tops20 - ;; - delta | 3300 | motorola-3300 | motorola-delta \ - | 3300-motorola | delta-motorola) - basic_machine=m68k-motorola - ;; - delta88) - basic_machine=m88k-motorola - os=-sysv3 - ;; - dicos) - basic_machine=i686-pc - os=-dicos - ;; - djgpp) - basic_machine=i586-pc - os=-msdosdjgpp - ;; - dpx20 | dpx20-*) - basic_machine=rs6000-bull - os=-bosx - ;; - dpx2* | dpx2*-bull) - basic_machine=m68k-bull - os=-sysv3 - ;; - ebmon29k) - basic_machine=a29k-amd - os=-ebmon - ;; - elxsi) - basic_machine=elxsi-elxsi - os=-bsd - ;; - encore | umax | mmax) - basic_machine=ns32k-encore - ;; - es1800 | OSE68k | ose68k | ose | OSE) - basic_machine=m68k-ericsson - os=-ose - ;; - fx2800) - basic_machine=i860-alliant - ;; - genix) - basic_machine=ns32k-ns - ;; - gmicro) - basic_machine=tron-gmicro - os=-sysv - ;; - go32) - basic_machine=i386-pc - os=-go32 - ;; - h3050r* | hiux*) - basic_machine=hppa1.1-hitachi - os=-hiuxwe2 - ;; - h8300hms) - basic_machine=h8300-hitachi - os=-hms - ;; - h8300xray) - basic_machine=h8300-hitachi - os=-xray - ;; - h8500hms) - basic_machine=h8500-hitachi - os=-hms - ;; - harris) - basic_machine=m88k-harris - os=-sysv3 - ;; - hp300-*) - basic_machine=m68k-hp - ;; - hp300bsd) - basic_machine=m68k-hp - os=-bsd - ;; - hp300hpux) - basic_machine=m68k-hp - os=-hpux - ;; - hp3k9[0-9][0-9] | hp9[0-9][0-9]) - basic_machine=hppa1.0-hp - ;; - hp9k2[0-9][0-9] | hp9k31[0-9]) - basic_machine=m68000-hp - ;; - hp9k3[2-9][0-9]) - basic_machine=m68k-hp - ;; - hp9k6[0-9][0-9] | hp6[0-9][0-9]) - basic_machine=hppa1.0-hp - ;; - hp9k7[0-79][0-9] | hp7[0-79][0-9]) - basic_machine=hppa1.1-hp - ;; - hp9k78[0-9] | hp78[0-9]) - # FIXME: really hppa2.0-hp - basic_machine=hppa1.1-hp - ;; - hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893) - # FIXME: really hppa2.0-hp - basic_machine=hppa1.1-hp - ;; - hp9k8[0-9][13679] | hp8[0-9][13679]) - basic_machine=hppa1.1-hp - ;; - hp9k8[0-9][0-9] | hp8[0-9][0-9]) - basic_machine=hppa1.0-hp - ;; - hppa-next) - os=-nextstep3 - ;; - hppaosf) - basic_machine=hppa1.1-hp - os=-osf - ;; - hppro) - basic_machine=hppa1.1-hp - os=-proelf - ;; - i370-ibm* | ibm*) - basic_machine=i370-ibm - ;; - i*86v32) - basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` - os=-sysv32 - ;; - i*86v4*) - basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` - os=-sysv4 - ;; - i*86v) - basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` - os=-sysv - ;; - i*86sol2) - basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` - os=-solaris2 - ;; - i386mach) - basic_machine=i386-mach - os=-mach - ;; - i386-vsta | vsta) - basic_machine=i386-unknown - os=-vsta - ;; - iris | iris4d) - basic_machine=mips-sgi - case $os in - -irix*) - ;; - *) - os=-irix4 - ;; - esac - ;; - isi68 | isi) - basic_machine=m68k-isi - os=-sysv - ;; - leon-*|leon[3-9]-*) - basic_machine=sparc-`echo $basic_machine | sed 's/-.*//'` - ;; - m68knommu) - basic_machine=m68k-unknown - os=-linux - ;; - m68knommu-*) - basic_machine=m68k-`echo $basic_machine | sed 's/^[^-]*-//'` - os=-linux - ;; - m88k-omron*) - basic_machine=m88k-omron - ;; - magnum | m3230) - basic_machine=mips-mips - os=-sysv - ;; - merlin) - basic_machine=ns32k-utek - os=-sysv - ;; - microblaze*) - basic_machine=microblaze-xilinx - ;; - mingw64) - basic_machine=x86_64-pc - os=-mingw64 - ;; - mingw32) - basic_machine=i686-pc - os=-mingw32 - ;; - mingw32ce) - basic_machine=arm-unknown - os=-mingw32ce - ;; - miniframe) - basic_machine=m68000-convergent - ;; - *mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*) - basic_machine=m68k-atari - os=-mint - ;; - mips3*-*) - basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'` - ;; - mips3*) - basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown - ;; - monitor) - basic_machine=m68k-rom68k - os=-coff - ;; - morphos) - basic_machine=powerpc-unknown - os=-morphos - ;; - moxiebox) - basic_machine=moxie-unknown - os=-moxiebox - ;; - msdos) - basic_machine=i386-pc - os=-msdos - ;; - ms1-*) - basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'` - ;; - msys) - basic_machine=i686-pc - os=-msys - ;; - mvs) - basic_machine=i370-ibm - os=-mvs - ;; - nacl) - basic_machine=le32-unknown - os=-nacl - ;; - ncr3000) - basic_machine=i486-ncr - os=-sysv4 - ;; - netbsd386) - basic_machine=i386-unknown - os=-netbsd - ;; - netwinder) - basic_machine=armv4l-rebel - os=-linux - ;; - news | news700 | news800 | news900) - basic_machine=m68k-sony - os=-newsos - ;; - news1000) - basic_machine=m68030-sony - os=-newsos - ;; - news-3600 | risc-news) - basic_machine=mips-sony - os=-newsos - ;; - necv70) - basic_machine=v70-nec - os=-sysv - ;; - next | m*-next ) - basic_machine=m68k-next - case $os in - -nextstep* ) - ;; - -ns2*) - os=-nextstep2 - ;; - *) - os=-nextstep3 - ;; - esac - ;; - nh3000) - basic_machine=m68k-harris - os=-cxux - ;; - nh[45]000) - basic_machine=m88k-harris - os=-cxux - ;; - nindy960) - basic_machine=i960-intel - os=-nindy - ;; - mon960) - basic_machine=i960-intel - os=-mon960 - ;; - nonstopux) - basic_machine=mips-compaq - os=-nonstopux - ;; - np1) - basic_machine=np1-gould - ;; - neo-tandem) - basic_machine=neo-tandem - ;; - nse-tandem) - basic_machine=nse-tandem - ;; - nsr-tandem) - basic_machine=nsr-tandem - ;; - op50n-* | op60c-*) - basic_machine=hppa1.1-oki - os=-proelf - ;; - openrisc | openrisc-*) - basic_machine=or32-unknown - ;; - os400) - basic_machine=powerpc-ibm - os=-os400 - ;; 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See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program. If not, see . - -# As a special exception to the GNU General Public License, if you -# distribute this file as part of a program that contains a -# configuration script generated by Autoconf, you may include it under -# the same distribution terms that you use for the rest of that program. - -# Originally written by Alexandre Oliva . - -case $1 in - '') - echo "$0: No command. 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On IRIX 6.4+, sh -# is ksh but when the shell is invoked as "sh" and the current value of -# the _XPG environment variable is not equal to 1 (one), the special -# positional parameter $0, within a function call, is the name of the -# function. -progpath=$0 - -# The name of this program. -progname=`$ECHO "$progpath" |$SED "$sed_basename"` - -# Make sure we have an absolute progpath for reexecution: -case $progpath in - [\\/]*|[A-Za-z]:\\*) ;; - *[\\/]*) - progdir=`$ECHO "$progpath" |$SED "$sed_dirname"` - progdir=`cd "$progdir" && pwd` - progpath=$progdir/$progname - ;; - *) - _G_IFS=$IFS - IFS=${PATH_SEPARATOR-:} - for progdir in $PATH; do - IFS=$_G_IFS - test -x "$progdir/$progname" && break - done - IFS=$_G_IFS - test -n "$progdir" || progdir=`pwd` - progpath=$progdir/$progname - ;; -esac - - -## ----------------- ## -## Standard options. ## -## ----------------- ## - -# The following options affect the operation of the functions defined -# below, and should be set appropriately depending on run-time para- -# meters passed on the command line. - -opt_dry_run=false -opt_quiet=false -opt_verbose=false - -# Categories 'all' and 'none' are always available. Append any others -# you will pass as the first argument to func_warning from your own -# code. -warning_categories= - -# By default, display warnings according to 'opt_warning_types'. Set -# 'warning_func' to ':' to elide all warnings, or func_fatal_error to -# treat the next displayed warning as a fatal error. -warning_func=func_warn_and_continue - -# Set to 'all' to display all warnings, 'none' to suppress all -# warnings, or a space delimited list of some subset of -# 'warning_categories' to display only the listed warnings. -opt_warning_types=all - - -## -------------------- ## -## Resource management. ## -## -------------------- ## - -# This section contains definitions for functions that each ensure a -# particular resource (a file, or a non-empty configuration variable for -# example) is available, and if appropriate to extract default values -# from pertinent package files. Call them using their associated -# 'require_*' variable to ensure that they are executed, at most, once. -# -# It's entirely deliberate that calling these functions can set -# variables that don't obey the namespace limitations obeyed by the rest -# of this file, in order that that they be as useful as possible to -# callers. - - -# require_term_colors -# ------------------- -# Allow display of bold text on terminals that support it. -require_term_colors=func_require_term_colors -func_require_term_colors () -{ - $debug_cmd - - test -t 1 && { - # COLORTERM and USE_ANSI_COLORS environment variables take - # precedence, because most terminfo databases neglect to describe - # whether color sequences are supported. - test -n "${COLORTERM+set}" && : ${USE_ANSI_COLORS="1"} - - if test 1 = "$USE_ANSI_COLORS"; then - # Standard ANSI escape sequences - tc_reset='' - tc_bold=''; tc_standout='' - tc_red=''; tc_green='' - tc_blue=''; tc_cyan='' - else - # Otherwise trust the terminfo database after all. - test -n "`tput sgr0 2>/dev/null`" && { - tc_reset=`tput sgr0` - test -n "`tput bold 2>/dev/null`" && tc_bold=`tput bold` - tc_standout=$tc_bold - test -n "`tput smso 2>/dev/null`" && tc_standout=`tput smso` - test -n "`tput setaf 1 2>/dev/null`" && tc_red=`tput setaf 1` - test -n "`tput setaf 2 2>/dev/null`" && tc_green=`tput setaf 2` - test -n "`tput setaf 4 2>/dev/null`" && tc_blue=`tput setaf 4` - test -n "`tput setaf 5 2>/dev/null`" && tc_cyan=`tput setaf 5` - } - fi - } - - require_term_colors=: -} - - -## ----------------- ## -## Function library. ## -## ----------------- ## - -# This section contains a variety of useful functions to call in your -# scripts. Take note of the portable wrappers for features provided by -# some modern shells, which will fall back to slower equivalents on -# less featureful shells. - - -# func_append VAR VALUE -# --------------------- -# Append VALUE onto the existing contents of VAR. - - # We should try to minimise forks, especially on Windows where they are - # unreasonably slow, so skip the feature probes when bash or zsh are - # being used: - if test set = "${BASH_VERSION+set}${ZSH_VERSION+set}"; then - : ${_G_HAVE_ARITH_OP="yes"} - : ${_G_HAVE_XSI_OPS="yes"} - # The += operator was introduced in bash 3.1 - case $BASH_VERSION in - [12].* | 3.0 | 3.0*) ;; - *) - : ${_G_HAVE_PLUSEQ_OP="yes"} - ;; - esac - fi - - # _G_HAVE_PLUSEQ_OP - # Can be empty, in which case the shell is probed, "yes" if += is - # useable or anything else if it does not work. - test -z "$_G_HAVE_PLUSEQ_OP" \ - && (eval 'x=a; x+=" b"; test "a b" = "$x"') 2>/dev/null \ - && _G_HAVE_PLUSEQ_OP=yes - -if test yes = "$_G_HAVE_PLUSEQ_OP" -then - # This is an XSI compatible shell, allowing a faster implementation... - eval 'func_append () - { - $debug_cmd - - eval "$1+=\$2" - }' -else - # ...otherwise fall back to using expr, which is often a shell builtin. - func_append () - { - $debug_cmd - - eval "$1=\$$1\$2" - } -fi - - -# func_append_quoted VAR VALUE -# ---------------------------- -# Quote VALUE and append to the end of shell variable VAR, separated -# by a space. -if test yes = "$_G_HAVE_PLUSEQ_OP"; then - eval 'func_append_quoted () - { - $debug_cmd - - func_quote_for_eval "$2" - eval "$1+=\\ \$func_quote_for_eval_result" - }' -else - func_append_quoted () - { - $debug_cmd - - func_quote_for_eval "$2" - eval "$1=\$$1\\ \$func_quote_for_eval_result" - } -fi - - -# func_append_uniq VAR VALUE -# -------------------------- -# Append unique VALUE onto the existing contents of VAR, assuming -# entries are delimited by the first character of VALUE. For example: -# -# func_append_uniq options " --another-option option-argument" -# -# will only append to $options if " --another-option option-argument " -# is not already present somewhere in $options already (note spaces at -# each end implied by leading space in second argument). -func_append_uniq () -{ - $debug_cmd - - eval _G_current_value='`$ECHO $'$1'`' - _G_delim=`expr "$2" : '\(.\)'` - - case $_G_delim$_G_current_value$_G_delim in - *"$2$_G_delim"*) ;; - *) func_append "$@" ;; - esac -} - - -# func_arith TERM... -# ------------------ -# Set func_arith_result to the result of evaluating TERMs. - test -z "$_G_HAVE_ARITH_OP" \ - && (eval 'test 2 = $(( 1 + 1 ))') 2>/dev/null \ - && _G_HAVE_ARITH_OP=yes - -if test yes = "$_G_HAVE_ARITH_OP"; then - eval 'func_arith () - { - $debug_cmd - - func_arith_result=$(( $* )) - }' -else - func_arith () - { - $debug_cmd - - func_arith_result=`expr "$@"` - } -fi - - -# func_basename FILE -# ------------------ -# Set func_basename_result to FILE with everything up to and including -# the last / stripped. -if test yes = "$_G_HAVE_XSI_OPS"; then - # If this shell supports suffix pattern removal, then use it to avoid - # forking. Hide the definitions single quotes in case the shell chokes - # on unsupported syntax... - _b='func_basename_result=${1##*/}' - _d='case $1 in - */*) func_dirname_result=${1%/*}$2 ;; - * ) func_dirname_result=$3 ;; - esac' - -else - # ...otherwise fall back to using sed. - _b='func_basename_result=`$ECHO "$1" |$SED "$sed_basename"`' - _d='func_dirname_result=`$ECHO "$1" |$SED "$sed_dirname"` - if test "X$func_dirname_result" = "X$1"; then - func_dirname_result=$3 - else - func_append func_dirname_result "$2" - fi' -fi - -eval 'func_basename () -{ - $debug_cmd - - '"$_b"' -}' - - -# func_dirname FILE APPEND NONDIR_REPLACEMENT -# ------------------------------------------- -# Compute the dirname of FILE. If nonempty, add APPEND to the result, -# otherwise set result to NONDIR_REPLACEMENT. -eval 'func_dirname () -{ - $debug_cmd - - '"$_d"' -}' - - -# func_dirname_and_basename FILE APPEND NONDIR_REPLACEMENT -# -------------------------------------------------------- -# Perform func_basename and func_dirname in a single function -# call: -# dirname: Compute the dirname of FILE. If nonempty, -# add APPEND to the result, otherwise set result -# to NONDIR_REPLACEMENT. -# value returned in "$func_dirname_result" -# basename: Compute filename of FILE. -# value retuned in "$func_basename_result" -# For efficiency, we do not delegate to the functions above but instead -# duplicate the functionality here. -eval 'func_dirname_and_basename () -{ - $debug_cmd - - '"$_b"' - '"$_d"' -}' - - -# func_echo ARG... -# ---------------- -# Echo program name prefixed message. -func_echo () -{ - $debug_cmd - - _G_message=$* - - func_echo_IFS=$IFS - IFS=$nl - for _G_line in $_G_message; do - IFS=$func_echo_IFS - $ECHO "$progname: $_G_line" - done - IFS=$func_echo_IFS -} - - -# func_echo_all ARG... -# -------------------- -# Invoke $ECHO with all args, space-separated. -func_echo_all () -{ - $ECHO "$*" -} - - -# func_echo_infix_1 INFIX ARG... -# ------------------------------ -# Echo program name, followed by INFIX on the first line, with any -# additional lines not showing INFIX. -func_echo_infix_1 () -{ - $debug_cmd - - $require_term_colors - - _G_infix=$1; shift - _G_indent=$_G_infix - _G_prefix="$progname: $_G_infix: " - _G_message=$* - - # Strip color escape sequences before counting printable length - for _G_tc in "$tc_reset" "$tc_bold" "$tc_standout" "$tc_red" "$tc_green" "$tc_blue" "$tc_cyan" - do - test -n "$_G_tc" && { - _G_esc_tc=`$ECHO "$_G_tc" | $SED "$sed_make_literal_regex"` - _G_indent=`$ECHO "$_G_indent" | $SED "s|$_G_esc_tc||g"` - } - done - _G_indent="$progname: "`echo "$_G_indent" | $SED 's|.| |g'`" " ## exclude from sc_prohibit_nested_quotes - - func_echo_infix_1_IFS=$IFS - IFS=$nl - for _G_line in $_G_message; do - IFS=$func_echo_infix_1_IFS - $ECHO "$_G_prefix$tc_bold$_G_line$tc_reset" >&2 - _G_prefix=$_G_indent - done - IFS=$func_echo_infix_1_IFS -} - - -# func_error ARG... -# ----------------- -# Echo program name prefixed message to standard error. -func_error () -{ - $debug_cmd - - $require_term_colors - - func_echo_infix_1 " $tc_standout${tc_red}error$tc_reset" "$*" >&2 -} - - -# func_fatal_error ARG... -# ----------------------- -# Echo program name prefixed message to standard error, and exit. -func_fatal_error () -{ - $debug_cmd - - func_error "$*" - exit $EXIT_FAILURE -} - - -# func_grep EXPRESSION FILENAME -# ----------------------------- -# Check whether EXPRESSION matches any line of FILENAME, without output. -func_grep () -{ - $debug_cmd - - $GREP "$1" "$2" >/dev/null 2>&1 -} - - -# func_len STRING -# --------------- -# Set func_len_result to the length of STRING. STRING may not -# start with a hyphen. - test -z "$_G_HAVE_XSI_OPS" \ - && (eval 'x=a/b/c; - test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \ - && _G_HAVE_XSI_OPS=yes - -if test yes = "$_G_HAVE_XSI_OPS"; then - eval 'func_len () - { - $debug_cmd - - func_len_result=${#1} - }' -else - func_len () - { - $debug_cmd - - func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len` - } -fi - - -# func_mkdir_p DIRECTORY-PATH -# --------------------------- -# Make sure the entire path to DIRECTORY-PATH is available. -func_mkdir_p () -{ - $debug_cmd - - _G_directory_path=$1 - _G_dir_list= - - if test -n "$_G_directory_path" && test : != "$opt_dry_run"; then - - # Protect directory names starting with '-' - case $_G_directory_path in - -*) _G_directory_path=./$_G_directory_path ;; - esac - - # While some portion of DIR does not yet exist... - while test ! -d "$_G_directory_path"; do - # ...make a list in topmost first order. Use a colon delimited - # list incase some portion of path contains whitespace. - _G_dir_list=$_G_directory_path:$_G_dir_list - - # If the last portion added has no slash in it, the list is done - case $_G_directory_path in */*) ;; *) break ;; esac - - # ...otherwise throw away the child directory and loop - _G_directory_path=`$ECHO "$_G_directory_path" | $SED -e "$sed_dirname"` - done - _G_dir_list=`$ECHO "$_G_dir_list" | $SED 's|:*$||'` - - func_mkdir_p_IFS=$IFS; IFS=: - for _G_dir in $_G_dir_list; do - IFS=$func_mkdir_p_IFS - # mkdir can fail with a 'File exist' error if two processes - # try to create one of the directories concurrently. Don't - # stop in that case! - $MKDIR "$_G_dir" 2>/dev/null || : - done - IFS=$func_mkdir_p_IFS - - # Bail out if we (or some other process) failed to create a directory. - test -d "$_G_directory_path" || \ - func_fatal_error "Failed to create '$1'" - fi -} - - -# func_mktempdir [BASENAME] -# ------------------------- -# Make a temporary directory that won't clash with other running -# libtool processes, and avoids race conditions if possible. If -# given, BASENAME is the basename for that directory. -func_mktempdir () -{ - $debug_cmd - - _G_template=${TMPDIR-/tmp}/${1-$progname} - - if test : = "$opt_dry_run"; then - # Return a directory name, but don't create it in dry-run mode - _G_tmpdir=$_G_template-$$ - else - - # If mktemp works, use that first and foremost - _G_tmpdir=`mktemp -d "$_G_template-XXXXXXXX" 2>/dev/null` - - if test ! -d "$_G_tmpdir"; then - # Failing that, at least try and use $RANDOM to avoid a race - _G_tmpdir=$_G_template-${RANDOM-0}$$ - - func_mktempdir_umask=`umask` - umask 0077 - $MKDIR "$_G_tmpdir" - umask $func_mktempdir_umask - fi - - # If we're not in dry-run mode, bomb out on failure - test -d "$_G_tmpdir" || \ - func_fatal_error "cannot create temporary directory '$_G_tmpdir'" - fi - - $ECHO "$_G_tmpdir" -} - - -# func_normal_abspath PATH -# ------------------------ -# Remove doubled-up and trailing slashes, "." path components, -# and cancel out any ".." path components in PATH after making -# it an absolute path. -func_normal_abspath () -{ - $debug_cmd - - # These SED scripts presuppose an absolute path with a trailing slash. - _G_pathcar='s|^/\([^/]*\).*$|\1|' - _G_pathcdr='s|^/[^/]*||' - _G_removedotparts=':dotsl - s|/\./|/|g - t dotsl - s|/\.$|/|' - _G_collapseslashes='s|/\{1,\}|/|g' - _G_finalslash='s|/*$|/|' - - # Start from root dir and reassemble the path. - func_normal_abspath_result= - func_normal_abspath_tpath=$1 - func_normal_abspath_altnamespace= - case $func_normal_abspath_tpath in - "") - # Empty path, that just means $cwd. - func_stripname '' '/' "`pwd`" - func_normal_abspath_result=$func_stripname_result - return - ;; - # The next three entries are used to spot a run of precisely - # two leading slashes without using negated character classes; - # we take advantage of case's first-match behaviour. - ///*) - # Unusual form of absolute path, do nothing. - ;; - //*) - # Not necessarily an ordinary path; POSIX reserves leading '//' - # and for example Cygwin uses it to access remote file shares - # over CIFS/SMB, so we conserve a leading double slash if found. - func_normal_abspath_altnamespace=/ - ;; - /*) - # Absolute path, do nothing. - ;; - *) - # Relative path, prepend $cwd. - func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath - ;; - esac - - # Cancel out all the simple stuff to save iterations. We also want - # the path to end with a slash for ease of parsing, so make sure - # there is one (and only one) here. - func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \ - -e "$_G_removedotparts" -e "$_G_collapseslashes" -e "$_G_finalslash"` - while :; do - # Processed it all yet? - if test / = "$func_normal_abspath_tpath"; then - # If we ascended to the root using ".." the result may be empty now. - if test -z "$func_normal_abspath_result"; then - func_normal_abspath_result=/ - fi - break - fi - func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \ - -e "$_G_pathcar"` - func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \ - -e "$_G_pathcdr"` - # Figure out what to do with it - case $func_normal_abspath_tcomponent in - "") - # Trailing empty path component, ignore it. - ;; - ..) - # Parent dir; strip last assembled component from result. - func_dirname "$func_normal_abspath_result" - func_normal_abspath_result=$func_dirname_result - ;; - *) - # Actual path component, append it. - func_append func_normal_abspath_result "/$func_normal_abspath_tcomponent" - ;; - esac - done - # Restore leading double-slash if one was found on entry. - func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result -} - - -# func_notquiet ARG... -# -------------------- -# Echo program name prefixed message only when not in quiet mode. -func_notquiet () -{ - $debug_cmd - - $opt_quiet || func_echo ${1+"$@"} - - # A bug in bash halts the script if the last line of a function - # fails when set -e is in force, so we need another command to - # work around that: - : -} - - -# func_relative_path SRCDIR DSTDIR -# -------------------------------- -# Set func_relative_path_result to the relative path from SRCDIR to DSTDIR. -func_relative_path () -{ - $debug_cmd - - func_relative_path_result= - func_normal_abspath "$1" - func_relative_path_tlibdir=$func_normal_abspath_result - func_normal_abspath "$2" - func_relative_path_tbindir=$func_normal_abspath_result - - # Ascend the tree starting from libdir - while :; do - # check if we have found a prefix of bindir - case $func_relative_path_tbindir in - $func_relative_path_tlibdir) - # found an exact match - func_relative_path_tcancelled= - break - ;; - $func_relative_path_tlibdir*) - # found a matching prefix - func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir" - func_relative_path_tcancelled=$func_stripname_result - if test -z "$func_relative_path_result"; then - func_relative_path_result=. - fi - break - ;; - *) - func_dirname $func_relative_path_tlibdir - func_relative_path_tlibdir=$func_dirname_result - if test -z "$func_relative_path_tlibdir"; then - # Have to descend all the way to the root! - func_relative_path_result=../$func_relative_path_result - func_relative_path_tcancelled=$func_relative_path_tbindir - break - fi - func_relative_path_result=../$func_relative_path_result - ;; - esac - done - - # Now calculate path; take care to avoid doubling-up slashes. - func_stripname '' '/' "$func_relative_path_result" - func_relative_path_result=$func_stripname_result - func_stripname '/' '/' "$func_relative_path_tcancelled" - if test -n "$func_stripname_result"; then - func_append func_relative_path_result "/$func_stripname_result" - fi - - # Normalisation. If bindir is libdir, return '.' else relative path. - if test -n "$func_relative_path_result"; then - func_stripname './' '' "$func_relative_path_result" - func_relative_path_result=$func_stripname_result - fi - - test -n "$func_relative_path_result" || func_relative_path_result=. - - : -} - - -# func_quote_for_eval ARG... -# -------------------------- -# Aesthetically quote ARGs to be evaled later. -# This function returns two values: -# i) func_quote_for_eval_result -# double-quoted, suitable for a subsequent eval -# ii) func_quote_for_eval_unquoted_result -# has all characters that are still active within double -# quotes backslashified. -func_quote_for_eval () -{ - $debug_cmd - - func_quote_for_eval_unquoted_result= - func_quote_for_eval_result= - while test 0 -lt $#; do - case $1 in - *[\\\`\"\$]*) - _G_unquoted_arg=`printf '%s\n' "$1" |$SED "$sed_quote_subst"` ;; - *) - _G_unquoted_arg=$1 ;; - esac - if test -n "$func_quote_for_eval_unquoted_result"; then - func_append func_quote_for_eval_unquoted_result " $_G_unquoted_arg" - else - func_append func_quote_for_eval_unquoted_result "$_G_unquoted_arg" - fi - - case $_G_unquoted_arg in - # Double-quote args containing shell metacharacters to delay - # word splitting, command substitution and variable expansion - # for a subsequent eval. - # Many Bourne shells cannot handle close brackets correctly - # in scan sets, so we specify it separately. - *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"") - _G_quoted_arg=\"$_G_unquoted_arg\" - ;; - *) - _G_quoted_arg=$_G_unquoted_arg - ;; - esac - - if test -n "$func_quote_for_eval_result"; then - func_append func_quote_for_eval_result " $_G_quoted_arg" - else - func_append func_quote_for_eval_result "$_G_quoted_arg" - fi - shift - done -} - - -# func_quote_for_expand ARG -# ------------------------- -# Aesthetically quote ARG to be evaled later; same as above, -# but do not quote variable references. -func_quote_for_expand () -{ - $debug_cmd - - case $1 in - *[\\\`\"]*) - _G_arg=`$ECHO "$1" | $SED \ - -e "$sed_double_quote_subst" -e "$sed_double_backslash"` ;; - *) - _G_arg=$1 ;; - esac - - case $_G_arg in - # Double-quote args containing shell metacharacters to delay - # word splitting and command substitution for a subsequent eval. - # Many Bourne shells cannot handle close brackets correctly - # in scan sets, so we specify it separately. - *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"") - _G_arg=\"$_G_arg\" - ;; - esac - - func_quote_for_expand_result=$_G_arg -} - - -# func_stripname PREFIX SUFFIX NAME -# --------------------------------- -# strip PREFIX and SUFFIX from NAME, and store in func_stripname_result. -# PREFIX and SUFFIX must not contain globbing or regex special -# characters, hashes, percent signs, but SUFFIX may contain a leading -# dot (in which case that matches only a dot). -if test yes = "$_G_HAVE_XSI_OPS"; then - eval 'func_stripname () - { - $debug_cmd - - # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are - # positional parameters, so assign one to ordinary variable first. - func_stripname_result=$3 - func_stripname_result=${func_stripname_result#"$1"} - func_stripname_result=${func_stripname_result%"$2"} - }' -else - func_stripname () - { - $debug_cmd - - case $2 in - .*) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%\\\\$2\$%%"`;; - *) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%$2\$%%"`;; - esac - } -fi - - -# func_show_eval CMD [FAIL_EXP] -# ----------------------------- -# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is -# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP -# is given, then evaluate it. -func_show_eval () -{ - $debug_cmd - - _G_cmd=$1 - _G_fail_exp=${2-':'} - - func_quote_for_expand "$_G_cmd" - eval "func_notquiet $func_quote_for_expand_result" - - $opt_dry_run || { - eval "$_G_cmd" - _G_status=$? - if test 0 -ne "$_G_status"; then - eval "(exit $_G_status); $_G_fail_exp" - fi - } -} - - -# func_show_eval_locale CMD [FAIL_EXP] -# ------------------------------------ -# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is -# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP -# is given, then evaluate it. Use the saved locale for evaluation. -func_show_eval_locale () -{ - $debug_cmd - - _G_cmd=$1 - _G_fail_exp=${2-':'} - - $opt_quiet || { - func_quote_for_expand "$_G_cmd" - eval "func_echo $func_quote_for_expand_result" - } - - $opt_dry_run || { - eval "$_G_user_locale - $_G_cmd" - _G_status=$? - eval "$_G_safe_locale" - if test 0 -ne "$_G_status"; then - eval "(exit $_G_status); $_G_fail_exp" - fi - } -} - - -# func_tr_sh -# ---------- -# Turn $1 into a string suitable for a shell variable name. -# Result is stored in $func_tr_sh_result. All characters -# not in the set a-zA-Z0-9_ are replaced with '_'. Further, -# if $1 begins with a digit, a '_' is prepended as well. -func_tr_sh () -{ - $debug_cmd - - case $1 in - [0-9]* | *[!a-zA-Z0-9_]*) - func_tr_sh_result=`$ECHO "$1" | $SED -e 's/^\([0-9]\)/_\1/' -e 's/[^a-zA-Z0-9_]/_/g'` - ;; - * ) - func_tr_sh_result=$1 - ;; - esac -} - - -# func_verbose ARG... -# ------------------- -# Echo program name prefixed message in verbose mode only. -func_verbose () -{ - $debug_cmd - - $opt_verbose && func_echo "$*" - - : -} - - -# func_warn_and_continue ARG... -# ----------------------------- -# Echo program name prefixed warning message to standard error. -func_warn_and_continue () -{ - $debug_cmd - - $require_term_colors - - func_echo_infix_1 "${tc_red}warning$tc_reset" "$*" >&2 -} - - -# func_warning CATEGORY ARG... -# ---------------------------- -# Echo program name prefixed warning message to standard error. Warning -# messages can be filtered according to CATEGORY, where this function -# elides messages where CATEGORY is not listed in the global variable -# 'opt_warning_types'. -func_warning () -{ - $debug_cmd - - # CATEGORY must be in the warning_categories list! - case " $warning_categories " in - *" $1 "*) ;; - *) func_internal_error "invalid warning category '$1'" ;; - esac - - _G_category=$1 - shift - - case " $opt_warning_types " in - *" $_G_category "*) $warning_func ${1+"$@"} ;; - esac -} - - -# func_sort_ver VER1 VER2 -# ----------------------- -# 'sort -V' is not generally available. -# Note this deviates from the version comparison in automake -# in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a -# but this should suffice as we won't be specifying old -# version formats or redundant trailing .0 in bootstrap.conf. -# If we did want full compatibility then we should probably -# use m4_version_compare from autoconf. -func_sort_ver () -{ - $debug_cmd - - printf '%s\n%s\n' "$1" "$2" \ - | sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n -k 6,6n -k 7,7n -k 8,8n -k 9,9n -} - -# func_lt_ver PREV CURR -# --------------------- -# Return true if PREV and CURR are in the correct order according to -# func_sort_ver, otherwise false. Use it like this: -# -# func_lt_ver "$prev_ver" "$proposed_ver" || func_fatal_error "..." -func_lt_ver () -{ - $debug_cmd - - test "x$1" = x`func_sort_ver "$1" "$2" | $SED 1q` -} - - -# Local variables: -# mode: shell-script -# sh-indentation: 2 -# eval: (add-hook 'before-save-hook 'time-stamp) -# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC" -# time-stamp-time-zone: "UTC" -# End: -#! /bin/sh - -# Set a version string for this script. -scriptversion=2014-01-07.03; # UTC - -# A portable, pluggable option parser for Bourne shell. -# Written by Gary V. Vaughan, 2010 - -# Copyright (C) 2010-2015 Free Software Foundation, Inc. -# This is free software; see the source for copying conditions. There is NO -# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - -# This program is free software: you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation, either version 3 of the License, or -# (at your option) any later version. - -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. - -# You should have received a copy of the GNU General Public License -# along with this program. If not, see . - -# Please report bugs or propose patches to gary@gnu.org. - - -## ------ ## -## Usage. ## -## ------ ## - -# This file is a library for parsing options in your shell scripts along -# with assorted other useful supporting features that you can make use -# of too. -# -# For the simplest scripts you might need only: -# -# #!/bin/sh -# . relative/path/to/funclib.sh -# . relative/path/to/options-parser -# scriptversion=1.0 -# func_options ${1+"$@"} -# eval set dummy "$func_options_result"; shift -# ...rest of your script... -# -# In order for the '--version' option to work, you will need to have a -# suitably formatted comment like the one at the top of this file -# starting with '# Written by ' and ending with '# warranty; '. -# -# For '-h' and '--help' to work, you will also need a one line -# description of your script's purpose in a comment directly above the -# '# Written by ' line, like the one at the top of this file. -# -# The default options also support '--debug', which will turn on shell -# execution tracing (see the comment above debug_cmd below for another -# use), and '--verbose' and the func_verbose function to allow your script -# to display verbose messages only when your user has specified -# '--verbose'. -# -# After sourcing this file, you can plug processing for additional -# options by amending the variables from the 'Configuration' section -# below, and following the instructions in the 'Option parsing' -# section further down. - -## -------------- ## -## Configuration. ## -## -------------- ## - -# You should override these variables in your script after sourcing this -# file so that they reflect the customisations you have added to the -# option parser. - -# The usage line for option parsing errors and the start of '-h' and -# '--help' output messages. You can embed shell variables for delayed -# expansion at the time the message is displayed, but you will need to -# quote other shell meta-characters carefully to prevent them being -# expanded when the contents are evaled. -usage='$progpath [OPTION]...' - -# Short help message in response to '-h' and '--help'. Add to this or -# override it after sourcing this library to reflect the full set of -# options your script accepts. -usage_message="\ - --debug enable verbose shell tracing - -W, --warnings=CATEGORY - report the warnings falling in CATEGORY [all] - -v, --verbose verbosely report processing - --version print version information and exit - -h, --help print short or long help message and exit -" - -# Additional text appended to 'usage_message' in response to '--help'. -long_help_message=" -Warning categories include: - 'all' show all warnings - 'none' turn off all the warnings - 'error' warnings are treated as fatal errors" - -# Help message printed before fatal option parsing errors. -fatal_help="Try '\$progname --help' for more information." - - - -## ------------------------- ## -## Hook function management. ## -## ------------------------- ## - -# This section contains functions for adding, removing, and running hooks -# to the main code. A hook is just a named list of of function, that can -# be run in order later on. - -# func_hookable FUNC_NAME -# ----------------------- -# Declare that FUNC_NAME will run hooks added with -# 'func_add_hook FUNC_NAME ...'. -func_hookable () -{ - $debug_cmd - - func_append hookable_fns " $1" -} - - -# func_add_hook FUNC_NAME HOOK_FUNC -# --------------------------------- -# Request that FUNC_NAME call HOOK_FUNC before it returns. FUNC_NAME must -# first have been declared "hookable" by a call to 'func_hookable'. -func_add_hook () -{ - $debug_cmd - - case " $hookable_fns " in - *" $1 "*) ;; - *) func_fatal_error "'$1' does not accept hook functions." ;; - esac - - eval func_append ${1}_hooks '" $2"' -} - - -# func_remove_hook FUNC_NAME HOOK_FUNC -# ------------------------------------ -# Remove HOOK_FUNC from the list of functions called by FUNC_NAME. -func_remove_hook () -{ - $debug_cmd - - eval ${1}_hooks='`$ECHO "\$'$1'_hooks" |$SED "s| '$2'||"`' -} - - -# func_run_hooks FUNC_NAME [ARG]... -# --------------------------------- -# Run all hook functions registered to FUNC_NAME. -# It is assumed that the list of hook functions contains nothing more -# than a whitespace-delimited list of legal shell function names, and -# no effort is wasted trying to catch shell meta-characters or preserve -# whitespace. -func_run_hooks () -{ - $debug_cmd - - case " $hookable_fns " in - *" $1 "*) ;; - *) func_fatal_error "'$1' does not support hook funcions.n" ;; - esac - - eval _G_hook_fns=\$$1_hooks; shift - - for _G_hook in $_G_hook_fns; do - eval $_G_hook '"$@"' - - # store returned options list back into positional - # parameters for next 'cmd' execution. - eval _G_hook_result=\$${_G_hook}_result - eval set dummy "$_G_hook_result"; shift - done - - func_quote_for_eval ${1+"$@"} - func_run_hooks_result=$func_quote_for_eval_result -} - - - -## --------------- ## -## Option parsing. ## -## --------------- ## - -# In order to add your own option parsing hooks, you must accept the -# full positional parameter list in your hook function, remove any -# options that you action, and then pass back the remaining unprocessed -# options in '_result', escaped suitably for -# 'eval'. Like this: -# -# my_options_prep () -# { -# $debug_cmd -# -# # Extend the existing usage message. -# usage_message=$usage_message' -# -s, --silent don'\''t print informational messages -# ' -# -# func_quote_for_eval ${1+"$@"} -# my_options_prep_result=$func_quote_for_eval_result -# } -# func_add_hook func_options_prep my_options_prep -# -# -# my_silent_option () -# { -# $debug_cmd -# -# # Note that for efficiency, we parse as many options as we can -# # recognise in a loop before passing the remainder back to the -# # caller on the first unrecognised argument we encounter. -# while test $# -gt 0; do -# opt=$1; shift -# case $opt in -# --silent|-s) opt_silent=: ;; -# # Separate non-argument short options: -# -s*) func_split_short_opt "$_G_opt" -# set dummy "$func_split_short_opt_name" \ -# "-$func_split_short_opt_arg" ${1+"$@"} -# shift -# ;; -# *) set dummy "$_G_opt" "$*"; shift; break ;; -# esac -# done -# -# func_quote_for_eval ${1+"$@"} -# my_silent_option_result=$func_quote_for_eval_result -# } -# func_add_hook func_parse_options my_silent_option -# -# -# my_option_validation () -# { -# $debug_cmd -# -# $opt_silent && $opt_verbose && func_fatal_help "\ -# '--silent' and '--verbose' options are mutually exclusive." -# -# func_quote_for_eval ${1+"$@"} -# my_option_validation_result=$func_quote_for_eval_result -# } -# func_add_hook func_validate_options my_option_validation -# -# You'll alse need to manually amend $usage_message to reflect the extra -# options you parse. It's preferable to append if you can, so that -# multiple option parsing hooks can be added safely. - - -# func_options [ARG]... -# --------------------- -# All the functions called inside func_options are hookable. See the -# individual implementations for details. -func_hookable func_options -func_options () -{ - $debug_cmd - - func_options_prep ${1+"$@"} - eval func_parse_options \ - ${func_options_prep_result+"$func_options_prep_result"} - eval func_validate_options \ - ${func_parse_options_result+"$func_parse_options_result"} - - eval func_run_hooks func_options \ - ${func_validate_options_result+"$func_validate_options_result"} - - # save modified positional parameters for caller - func_options_result=$func_run_hooks_result -} - - -# func_options_prep [ARG]... -# -------------------------- -# All initialisations required before starting the option parse loop. -# Note that when calling hook functions, we pass through the list of -# positional parameters. If a hook function modifies that list, and -# needs to propogate that back to rest of this script, then the complete -# modified list must be put in 'func_run_hooks_result' before -# returning. -func_hookable func_options_prep -func_options_prep () -{ - $debug_cmd - - # Option defaults: - opt_verbose=false - opt_warning_types= - - func_run_hooks func_options_prep ${1+"$@"} - - # save modified positional parameters for caller - func_options_prep_result=$func_run_hooks_result -} - - -# func_parse_options [ARG]... -# --------------------------- -# The main option parsing loop. -func_hookable func_parse_options -func_parse_options () -{ - $debug_cmd - - func_parse_options_result= - - # this just eases exit handling - while test $# -gt 0; do - # Defer to hook functions for initial option parsing, so they - # get priority in the event of reusing an option name. - func_run_hooks func_parse_options ${1+"$@"} - - # Adjust func_parse_options positional parameters to match - eval set dummy "$func_run_hooks_result"; shift - - # Break out of the loop if we already parsed every option. - test $# -gt 0 || break - - _G_opt=$1 - shift - case $_G_opt in - --debug|-x) debug_cmd='set -x' - func_echo "enabling shell trace mode" - $debug_cmd - ;; - - --no-warnings|--no-warning|--no-warn) - set dummy --warnings none ${1+"$@"} - shift - ;; - - --warnings|--warning|-W) - test $# = 0 && func_missing_arg $_G_opt && break - case " $warning_categories $1" in - *" $1 "*) - # trailing space prevents matching last $1 above - func_append_uniq opt_warning_types " $1" - ;; - *all) - opt_warning_types=$warning_categories - ;; - *none) - opt_warning_types=none - warning_func=: - ;; - *error) - opt_warning_types=$warning_categories - warning_func=func_fatal_error - ;; - *) - func_fatal_error \ - "unsupported warning category: '$1'" - ;; - esac - shift - ;; - - --verbose|-v) opt_verbose=: ;; - --version) func_version ;; - -\?|-h) func_usage ;; - --help) func_help ;; - - # Separate optargs to long options (plugins may need this): - --*=*) func_split_equals "$_G_opt" - set dummy "$func_split_equals_lhs" \ - "$func_split_equals_rhs" ${1+"$@"} - shift - ;; - - # Separate optargs to short options: - -W*) - func_split_short_opt "$_G_opt" - set dummy "$func_split_short_opt_name" \ - "$func_split_short_opt_arg" ${1+"$@"} - shift - ;; - - # Separate non-argument short options: - -\?*|-h*|-v*|-x*) - func_split_short_opt "$_G_opt" - set dummy "$func_split_short_opt_name" \ - "-$func_split_short_opt_arg" ${1+"$@"} - shift - ;; - - --) break ;; - -*) func_fatal_help "unrecognised option: '$_G_opt'" ;; - *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;; - esac - done - - # save modified positional parameters for caller - func_quote_for_eval ${1+"$@"} - func_parse_options_result=$func_quote_for_eval_result -} - - -# func_validate_options [ARG]... -# ------------------------------ -# Perform any sanity checks on option settings and/or unconsumed -# arguments. -func_hookable func_validate_options -func_validate_options () -{ - $debug_cmd - - # Display all warnings if -W was not given. - test -n "$opt_warning_types" || opt_warning_types=" $warning_categories" - - func_run_hooks func_validate_options ${1+"$@"} - - # Bail if the options were screwed! - $exit_cmd $EXIT_FAILURE - - # save modified positional parameters for caller - func_validate_options_result=$func_run_hooks_result -} - - - -## ----------------- ## -## Helper functions. ## -## ----------------- ## - -# This section contains the helper functions used by the rest of the -# hookable option parser framework in ascii-betical order. - - -# func_fatal_help ARG... -# ---------------------- -# Echo program name prefixed message to standard error, followed by -# a help hint, and exit. -func_fatal_help () -{ - $debug_cmd - - eval \$ECHO \""Usage: $usage"\" - eval \$ECHO \""$fatal_help"\" - func_error ${1+"$@"} - exit $EXIT_FAILURE -} - - -# func_help -# --------- -# Echo long help message to standard output and exit. -func_help () -{ - $debug_cmd - - func_usage_message - $ECHO "$long_help_message" - exit 0 -} - - -# func_missing_arg ARGNAME -# ------------------------ -# Echo program name prefixed message to standard error and set global -# exit_cmd. -func_missing_arg () -{ - $debug_cmd - - func_error "Missing argument for '$1'." - exit_cmd=exit -} - - -# func_split_equals STRING -# ------------------------ -# Set func_split_equals_lhs and func_split_equals_rhs shell variables after -# splitting STRING at the '=' sign. -test -z "$_G_HAVE_XSI_OPS" \ - && (eval 'x=a/b/c; - test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \ - && _G_HAVE_XSI_OPS=yes - -if test yes = "$_G_HAVE_XSI_OPS" -then - # This is an XSI compatible shell, allowing a faster implementation... - eval 'func_split_equals () - { - $debug_cmd - - func_split_equals_lhs=${1%%=*} - func_split_equals_rhs=${1#*=} - test "x$func_split_equals_lhs" = "x$1" \ - && func_split_equals_rhs= - }' -else - # ...otherwise fall back to using expr, which is often a shell builtin. - func_split_equals () - { - $debug_cmd - - func_split_equals_lhs=`expr "x$1" : 'x\([^=]*\)'` - func_split_equals_rhs= - test "x$func_split_equals_lhs" = "x$1" \ - || func_split_equals_rhs=`expr "x$1" : 'x[^=]*=\(.*\)$'` - } -fi #func_split_equals - - -# func_split_short_opt SHORTOPT -# ----------------------------- -# Set func_split_short_opt_name and func_split_short_opt_arg shell -# variables after splitting SHORTOPT after the 2nd character. -if test yes = "$_G_HAVE_XSI_OPS" -then - # This is an XSI compatible shell, allowing a faster implementation... - eval 'func_split_short_opt () - { - $debug_cmd - - func_split_short_opt_arg=${1#??} - func_split_short_opt_name=${1%"$func_split_short_opt_arg"} - }' -else - # ...otherwise fall back to using expr, which is often a shell builtin. - func_split_short_opt () - { - $debug_cmd - - func_split_short_opt_name=`expr "x$1" : 'x-\(.\)'` - func_split_short_opt_arg=`expr "x$1" : 'x-.\(.*\)$'` - } -fi #func_split_short_opt - - -# func_usage -# ---------- -# Echo short help message to standard output and exit. -func_usage () -{ - $debug_cmd - - func_usage_message - $ECHO "Run '$progname --help |${PAGER-more}' for full usage" - exit 0 -} - - -# func_usage_message -# ------------------ -# Echo short help message to standard output. -func_usage_message () -{ - $debug_cmd - - eval \$ECHO \""Usage: $usage"\" - echo - $SED -n 's|^# || - /^Written by/{ - x;p;x - } - h - /^Written by/q' < "$progpath" - echo - eval \$ECHO \""$usage_message"\" -} - - -# func_version -# ------------ -# Echo version message to standard output and exit. -func_version () -{ - $debug_cmd - - printf '%s\n' "$progname $scriptversion" - $SED -n ' - /(C)/!b go - :more - /\./!{ - N - s|\n# | | - b more - } - :go - /^# Written by /,/# warranty; / { - s|^# || - s|^# *$|| - s|\((C)\)[ 0-9,-]*[ ,-]\([1-9][0-9]* \)|\1 \2| - p - } - /^# Written by / { - s|^# || - p - } - /^warranty; /q' < "$progpath" - - exit $? -} - - -# Local variables: -# mode: shell-script -# sh-indentation: 2 -# eval: (add-hook 'before-save-hook 'time-stamp) -# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC" -# time-stamp-time-zone: "UTC" -# End: - -# Set a version string. -scriptversion='(GNU libtool) 2.4.6' - - -# func_echo ARG... -# ---------------- -# Libtool also displays the current mode in messages, so override -# funclib.sh func_echo with this custom definition. -func_echo () -{ - $debug_cmd - - _G_message=$* - - func_echo_IFS=$IFS - IFS=$nl - for _G_line in $_G_message; do - IFS=$func_echo_IFS - $ECHO "$progname${opt_mode+: $opt_mode}: $_G_line" - done - IFS=$func_echo_IFS -} - - -# func_warning ARG... -# ------------------- -# Libtool warnings are not categorized, so override funclib.sh -# func_warning with this simpler definition. -func_warning () -{ - $debug_cmd - - $warning_func ${1+"$@"} -} - - -## ---------------- ## -## Options parsing. ## -## ---------------- ## - -# Hook in the functions to make sure our own options are parsed during -# the option parsing loop. - -usage='$progpath [OPTION]... [MODE-ARG]...' - -# Short help message in response to '-h'. -usage_message="Options: - --config show all configuration variables - --debug enable verbose shell tracing - -n, --dry-run display commands without modifying any files - --features display basic configuration information and exit - --mode=MODE use operation mode MODE - --no-warnings equivalent to '-Wnone' - --preserve-dup-deps don't remove duplicate dependency libraries - --quiet, --silent don't print informational messages - --tag=TAG use configuration variables from tag TAG - -v, --verbose print more informational messages than default - --version print version information - -W, --warnings=CATEGORY report the warnings falling in CATEGORY [all] - -h, --help, --help-all print short, long, or detailed help message -" - -# Additional text appended to 'usage_message' in response to '--help'. -func_help () -{ - $debug_cmd - - func_usage_message - $ECHO "$long_help_message - -MODE must be one of the following: - - clean remove files from the build directory - compile compile a source file into a libtool object - execute automatically set library path, then run a program - finish complete the installation of libtool libraries - install install libraries or executables - link create a library or an executable - uninstall remove libraries from an installed directory - -MODE-ARGS vary depending on the MODE. When passed as first option, -'--mode=MODE' may be abbreviated as 'MODE' or a unique abbreviation of that. -Try '$progname --help --mode=MODE' for a more detailed description of MODE. - -When reporting a bug, please describe a test case to reproduce it and -include the following information: - - host-triplet: $host - shell: $SHELL - compiler: $LTCC - compiler flags: $LTCFLAGS - linker: $LD (gnu? $with_gnu_ld) - version: $progname (GNU libtool) 2.4.6 - automake: `($AUTOMAKE --version) 2>/dev/null |$SED 1q` - autoconf: `($AUTOCONF --version) 2>/dev/null |$SED 1q` - -Report bugs to . -GNU libtool home page: . -General help using GNU software: ." - exit 0 -} - - -# func_lo2o OBJECT-NAME -# --------------------- -# Transform OBJECT-NAME from a '.lo' suffix to the platform specific -# object suffix. - -lo2o=s/\\.lo\$/.$objext/ -o2lo=s/\\.$objext\$/.lo/ - -if test yes = "$_G_HAVE_XSI_OPS"; then - eval 'func_lo2o () - { - case $1 in - *.lo) func_lo2o_result=${1%.lo}.$objext ;; - * ) func_lo2o_result=$1 ;; - esac - }' - - # func_xform LIBOBJ-OR-SOURCE - # --------------------------- - # Transform LIBOBJ-OR-SOURCE from a '.o' or '.c' (or otherwise) - # suffix to a '.lo' libtool-object suffix. - eval 'func_xform () - { - func_xform_result=${1%.*}.lo - }' -else - # ...otherwise fall back to using sed. - func_lo2o () - { - func_lo2o_result=`$ECHO "$1" | $SED "$lo2o"` - } - - func_xform () - { - func_xform_result=`$ECHO "$1" | $SED 's|\.[^.]*$|.lo|'` - } -fi - - -# func_fatal_configuration ARG... -# ------------------------------- -# Echo program name prefixed message to standard error, followed by -# a configuration failure hint, and exit. -func_fatal_configuration () -{ - func__fatal_error ${1+"$@"} \ - "See the $PACKAGE documentation for more information." \ - "Fatal configuration error." -} - - -# func_config -# ----------- -# Display the configuration for all the tags in this script. -func_config () -{ - re_begincf='^# ### BEGIN LIBTOOL' - re_endcf='^# ### END LIBTOOL' - - # Default configuration. - $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath" - - # Now print the configurations for the tags. - for tagname in $taglist; do - $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath" - done - - exit $? -} - - -# func_features -# ------------- -# Display the features supported by this script. -func_features () -{ - echo "host: $host" - if test yes = "$build_libtool_libs"; then - echo "enable shared libraries" - else - echo "disable shared libraries" - fi - if test yes = "$build_old_libs"; then - echo "enable static libraries" - else - echo "disable static libraries" - fi - - exit $? -} - - -# func_enable_tag TAGNAME -# ----------------------- -# Verify that TAGNAME is valid, and either flag an error and exit, or -# enable the TAGNAME tag. We also add TAGNAME to the global $taglist -# variable here. -func_enable_tag () -{ - # Global variable: - tagname=$1 - - re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$" - re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$" - sed_extractcf=/$re_begincf/,/$re_endcf/p - - # Validate tagname. - case $tagname in - *[!-_A-Za-z0-9,/]*) - func_fatal_error "invalid tag name: $tagname" - ;; - esac - - # Don't test for the "default" C tag, as we know it's - # there but not specially marked. - case $tagname in - CC) ;; - *) - if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then - taglist="$taglist $tagname" - - # Evaluate the configuration. Be careful to quote the path - # and the sed script, to avoid splitting on whitespace, but - # also don't use non-portable quotes within backquotes within - # quotes we have to do it in 2 steps: - extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"` - eval "$extractedcf" - else - func_error "ignoring unknown tag $tagname" - fi - ;; - esac -} - - -# func_check_version_match -# ------------------------ -# Ensure that we are using m4 macros, and libtool script from the same -# release of libtool. -func_check_version_match () -{ - if test "$package_revision" != "$macro_revision"; then - if test "$VERSION" != "$macro_version"; then - if test -z "$macro_version"; then - cat >&2 <<_LT_EOF -$progname: Version mismatch error. This is $PACKAGE $VERSION, but the -$progname: definition of this LT_INIT comes from an older release. -$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION -$progname: and run autoconf again. -_LT_EOF - else - cat >&2 <<_LT_EOF -$progname: Version mismatch error. This is $PACKAGE $VERSION, but the -$progname: definition of this LT_INIT comes from $PACKAGE $macro_version. -$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION -$progname: and run autoconf again. -_LT_EOF - fi - else - cat >&2 <<_LT_EOF -$progname: Version mismatch error. This is $PACKAGE $VERSION, revision $package_revision, -$progname: but the definition of this LT_INIT comes from revision $macro_revision. -$progname: You should recreate aclocal.m4 with macros from revision $package_revision -$progname: of $PACKAGE $VERSION and run autoconf again. -_LT_EOF - fi - - exit $EXIT_MISMATCH - fi -} - - -# libtool_options_prep [ARG]... -# ----------------------------- -# Preparation for options parsed by libtool. -libtool_options_prep () -{ - $debug_mode - - # Option defaults: - opt_config=false - opt_dlopen= - opt_dry_run=false - opt_help=false - opt_mode= - opt_preserve_dup_deps=false - opt_quiet=false - - nonopt= - preserve_args= - - # Shorthand for --mode=foo, only valid as the first argument - case $1 in - clean|clea|cle|cl) - shift; set dummy --mode clean ${1+"$@"}; shift - ;; - compile|compil|compi|comp|com|co|c) - shift; set dummy --mode compile ${1+"$@"}; shift - ;; - execute|execut|execu|exec|exe|ex|e) - shift; set dummy --mode execute ${1+"$@"}; shift - ;; - finish|finis|fini|fin|fi|f) - shift; set dummy --mode finish ${1+"$@"}; shift - ;; - install|instal|insta|inst|ins|in|i) - shift; set dummy --mode install ${1+"$@"}; shift - ;; - link|lin|li|l) - shift; set dummy --mode link ${1+"$@"}; shift - ;; - uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u) - shift; set dummy --mode uninstall ${1+"$@"}; shift - ;; - esac - - # Pass back the list of options. - func_quote_for_eval ${1+"$@"} - libtool_options_prep_result=$func_quote_for_eval_result -} -func_add_hook func_options_prep libtool_options_prep - - -# libtool_parse_options [ARG]... -# --------------------------------- -# Provide handling for libtool specific options. -libtool_parse_options () -{ - $debug_cmd - - # Perform our own loop to consume as many options as possible in - # each iteration. - while test $# -gt 0; do - _G_opt=$1 - shift - case $_G_opt in - --dry-run|--dryrun|-n) - opt_dry_run=: - ;; - - --config) func_config ;; - - --dlopen|-dlopen) - opt_dlopen="${opt_dlopen+$opt_dlopen -}$1" - shift - ;; - - --preserve-dup-deps) - opt_preserve_dup_deps=: ;; - - --features) func_features ;; - - --finish) set dummy --mode finish ${1+"$@"}; shift ;; - - --help) opt_help=: ;; - - --help-all) opt_help=': help-all' ;; - - --mode) test $# = 0 && func_missing_arg $_G_opt && break - opt_mode=$1 - case $1 in - # Valid mode arguments: - clean|compile|execute|finish|install|link|relink|uninstall) ;; - - # Catch anything else as an error - *) func_error "invalid argument for $_G_opt" - exit_cmd=exit - break - ;; - esac - shift - ;; - - --no-silent|--no-quiet) - opt_quiet=false - func_append preserve_args " $_G_opt" - ;; - - --no-warnings|--no-warning|--no-warn) - opt_warning=false - func_append preserve_args " $_G_opt" - ;; - - --no-verbose) - opt_verbose=false - func_append preserve_args " $_G_opt" - ;; - - --silent|--quiet) - opt_quiet=: - opt_verbose=false - func_append preserve_args " $_G_opt" - ;; - - --tag) test $# = 0 && func_missing_arg $_G_opt && break - opt_tag=$1 - func_append preserve_args " $_G_opt $1" - func_enable_tag "$1" - shift - ;; - - --verbose|-v) opt_quiet=false - opt_verbose=: - func_append preserve_args " $_G_opt" - ;; - - # An option not handled by this hook function: - *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;; - esac - done - - - # save modified positional parameters for caller - func_quote_for_eval ${1+"$@"} - libtool_parse_options_result=$func_quote_for_eval_result -} -func_add_hook func_parse_options libtool_parse_options - - - -# libtool_validate_options [ARG]... -# --------------------------------- -# Perform any sanity checks on option settings and/or unconsumed -# arguments. -libtool_validate_options () -{ - # save first non-option argument - if test 0 -lt $#; then - nonopt=$1 - shift - fi - - # preserve --debug - test : = "$debug_cmd" || func_append preserve_args " --debug" - - case $host in - # Solaris2 added to fix http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16452 - # see also: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59788 - *cygwin* | *mingw* | *pw32* | *cegcc* | *solaris2* | *os2*) - # don't eliminate duplications in $postdeps and $predeps - opt_duplicate_compiler_generated_deps=: - ;; - *) - opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps - ;; - esac - - $opt_help || { - # Sanity checks first: - func_check_version_match - - test yes != "$build_libtool_libs" \ - && test yes != "$build_old_libs" \ - && func_fatal_configuration "not configured to build any kind of library" - - # Darwin sucks - eval std_shrext=\"$shrext_cmds\" - - # Only execute mode is allowed to have -dlopen flags. - if test -n "$opt_dlopen" && test execute != "$opt_mode"; then - func_error "unrecognized option '-dlopen'" - $ECHO "$help" 1>&2 - exit $EXIT_FAILURE - fi - - # Change the help message to a mode-specific one. - generic_help=$help - help="Try '$progname --help --mode=$opt_mode' for more information." - } - - # Pass back the unparsed argument list - func_quote_for_eval ${1+"$@"} - libtool_validate_options_result=$func_quote_for_eval_result -} -func_add_hook func_validate_options libtool_validate_options - - -# Process options as early as possible so that --help and --version -# can return quickly. -func_options ${1+"$@"} -eval set dummy "$func_options_result"; shift - - - -## ----------- ## -## Main. ## -## ----------- ## - -magic='%%%MAGIC variable%%%' -magic_exe='%%%MAGIC EXE variable%%%' - -# Global variables. -extracted_archives= -extracted_serial=0 - -# If this variable is set in any of the actions, the command in it -# will be execed at the end. This prevents here-documents from being -# left over by shells. -exec_cmd= - - -# A function that is used when there is no print builtin or printf. -func_fallback_echo () -{ - eval 'cat <<_LTECHO_EOF -$1 -_LTECHO_EOF' -} - -# func_generated_by_libtool -# True iff stdin has been generated by Libtool. This function is only -# a basic sanity check; it will hardly flush out determined imposters. -func_generated_by_libtool_p () -{ - $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1 -} - -# func_lalib_p file -# True iff FILE is a libtool '.la' library or '.lo' object file. -# This function is only a basic sanity check; it will hardly flush out -# determined imposters. -func_lalib_p () -{ - test -f "$1" && - $SED -e 4q "$1" 2>/dev/null | func_generated_by_libtool_p -} - -# func_lalib_unsafe_p file -# True iff FILE is a libtool '.la' library or '.lo' object file. -# This function implements the same check as func_lalib_p without -# resorting to external programs. To this end, it redirects stdin and -# closes it afterwards, without saving the original file descriptor. -# As a safety measure, use it only where a negative result would be -# fatal anyway. Works if 'file' does not exist. -func_lalib_unsafe_p () -{ - lalib_p=no - if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then - for lalib_p_l in 1 2 3 4 - do - read lalib_p_line - case $lalib_p_line in - \#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;; - esac - done - exec 0<&5 5<&- - fi - test yes = "$lalib_p" -} - -# func_ltwrapper_script_p file -# True iff FILE is a libtool wrapper script -# This function is only a basic sanity check; it will hardly flush out -# determined imposters. -func_ltwrapper_script_p () -{ - test -f "$1" && - $lt_truncate_bin < "$1" 2>/dev/null | func_generated_by_libtool_p -} - -# func_ltwrapper_executable_p file -# True iff FILE is a libtool wrapper executable -# This function is only a basic sanity check; it will hardly flush out -# determined imposters. -func_ltwrapper_executable_p () -{ - func_ltwrapper_exec_suffix= - case $1 in - *.exe) ;; - *) func_ltwrapper_exec_suffix=.exe ;; - esac - $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1 -} - -# func_ltwrapper_scriptname file -# Assumes file is an ltwrapper_executable -# uses $file to determine the appropriate filename for a -# temporary ltwrapper_script. -func_ltwrapper_scriptname () -{ - func_dirname_and_basename "$1" "" "." - func_stripname '' '.exe' "$func_basename_result" - func_ltwrapper_scriptname_result=$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper -} - -# func_ltwrapper_p file -# True iff FILE is a libtool wrapper script or wrapper executable -# This function is only a basic sanity check; it will hardly flush out -# determined imposters. -func_ltwrapper_p () -{ - func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1" -} - - -# func_execute_cmds commands fail_cmd -# Execute tilde-delimited COMMANDS. -# If FAIL_CMD is given, eval that upon failure. -# FAIL_CMD may read-access the current command in variable CMD! -func_execute_cmds () -{ - $debug_cmd - - save_ifs=$IFS; IFS='~' - for cmd in $1; do - IFS=$sp$nl - eval cmd=\"$cmd\" - IFS=$save_ifs - func_show_eval "$cmd" "${2-:}" - done - IFS=$save_ifs -} - - -# func_source file -# Source FILE, adding directory component if necessary. -# Note that it is not necessary on cygwin/mingw to append a dot to -# FILE even if both FILE and FILE.exe exist: automatic-append-.exe -# behavior happens only for exec(3), not for open(2)! Also, sourcing -# 'FILE.' does not work on cygwin managed mounts. -func_source () -{ - $debug_cmd - - case $1 in - */* | *\\*) . "$1" ;; - *) . "./$1" ;; - esac -} - - -# func_resolve_sysroot PATH -# Replace a leading = in PATH with a sysroot. Store the result into -# func_resolve_sysroot_result -func_resolve_sysroot () -{ - func_resolve_sysroot_result=$1 - case $func_resolve_sysroot_result in - =*) - func_stripname '=' '' "$func_resolve_sysroot_result" - func_resolve_sysroot_result=$lt_sysroot$func_stripname_result - ;; - esac -} - -# func_replace_sysroot PATH -# If PATH begins with the sysroot, replace it with = and -# store the result into func_replace_sysroot_result. -func_replace_sysroot () -{ - case $lt_sysroot:$1 in - ?*:"$lt_sysroot"*) - func_stripname "$lt_sysroot" '' "$1" - func_replace_sysroot_result='='$func_stripname_result - ;; - *) - # Including no sysroot. - func_replace_sysroot_result=$1 - ;; - esac -} - -# func_infer_tag arg -# Infer tagged configuration to use if any are available and -# if one wasn't chosen via the "--tag" command line option. -# Only attempt this if the compiler in the base compile -# command doesn't match the default compiler. -# arg is usually of the form 'gcc ...' -func_infer_tag () -{ - $debug_cmd - - if test -n "$available_tags" && test -z "$tagname"; then - CC_quoted= - for arg in $CC; do - func_append_quoted CC_quoted "$arg" - done - CC_expanded=`func_echo_all $CC` - CC_quoted_expanded=`func_echo_all $CC_quoted` - case $@ in - # Blanks in the command may have been stripped by the calling shell, - # but not from the CC environment variable when configure was run. - " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ - " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;; - # Blanks at the start of $base_compile will cause this to fail - # if we don't check for them as well. - *) - for z in $available_tags; do - if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then - # Evaluate the configuration. - eval "`$SED -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`" - CC_quoted= - for arg in $CC; do - # Double-quote args containing other shell metacharacters. - func_append_quoted CC_quoted "$arg" - done - CC_expanded=`func_echo_all $CC` - CC_quoted_expanded=`func_echo_all $CC_quoted` - case "$@ " in - " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \ - " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) - # The compiler in the base compile command matches - # the one in the tagged configuration. - # Assume this is the tagged configuration we want. - tagname=$z - break - ;; - esac - fi - done - # If $tagname still isn't set, then no tagged configuration - # was found and let the user know that the "--tag" command - # line option must be used. - if test -z "$tagname"; then - func_echo "unable to infer tagged configuration" - func_fatal_error "specify a tag with '--tag'" -# else -# func_verbose "using $tagname tagged configuration" - fi - ;; - esac - fi -} - - - -# func_write_libtool_object output_name pic_name nonpic_name -# Create a libtool object file (analogous to a ".la" file), -# but don't create it if we're doing a dry run. -func_write_libtool_object () -{ - write_libobj=$1 - if test yes = "$build_libtool_libs"; then - write_lobj=\'$2\' - else - write_lobj=none - fi - - if test yes = "$build_old_libs"; then - write_oldobj=\'$3\' - else - write_oldobj=none - fi - - $opt_dry_run || { - cat >${write_libobj}T </dev/null` - if test "$?" -eq 0 && test -n "$func_convert_core_file_wine_to_w32_tmp"; then - func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" | - $SED -e "$sed_naive_backslashify"` - else - func_convert_core_file_wine_to_w32_result= - fi - fi -} -# end: func_convert_core_file_wine_to_w32 - - -# func_convert_core_path_wine_to_w32 ARG -# Helper function used by path conversion functions when $build is *nix, and -# $host is mingw, cygwin, or some other w32 environment. Relies on a correctly -# configured wine environment available, with the winepath program in $build's -# $PATH. Assumes ARG has no leading or trailing path separator characters. -# -# ARG is path to be converted from $build format to win32. -# Result is available in $func_convert_core_path_wine_to_w32_result. -# Unconvertible file (directory) names in ARG are skipped; if no directory names -# are convertible, then the result may be empty. -func_convert_core_path_wine_to_w32 () -{ - $debug_cmd - - # unfortunately, winepath doesn't convert paths, only file names - func_convert_core_path_wine_to_w32_result= - if test -n "$1"; then - oldIFS=$IFS - IFS=: - for func_convert_core_path_wine_to_w32_f in $1; do - IFS=$oldIFS - func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f" - if test -n "$func_convert_core_file_wine_to_w32_result"; then - if test -z "$func_convert_core_path_wine_to_w32_result"; then - func_convert_core_path_wine_to_w32_result=$func_convert_core_file_wine_to_w32_result - else - func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result" - fi - fi - done - IFS=$oldIFS - fi -} -# end: func_convert_core_path_wine_to_w32 - - -# func_cygpath ARGS... -# Wrapper around calling the cygpath program via LT_CYGPATH. This is used when -# when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2) -# $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or -# (2), returns the Cygwin file name or path in func_cygpath_result (input -# file name or path is assumed to be in w32 format, as previously converted -# from $build's *nix or MSYS format). In case (3), returns the w32 file name -# or path in func_cygpath_result (input file name or path is assumed to be in -# Cygwin format). Returns an empty string on error. -# -# ARGS are passed to cygpath, with the last one being the file name or path to -# be converted. -# -# Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH -# environment variable; do not put it in $PATH. -func_cygpath () -{ - $debug_cmd - - if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then - func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null` - if test "$?" -ne 0; then - # on failure, ensure result is empty - func_cygpath_result= - fi - else - func_cygpath_result= - func_error "LT_CYGPATH is empty or specifies non-existent file: '$LT_CYGPATH'" - fi -} -#end: func_cygpath - - -# func_convert_core_msys_to_w32 ARG -# Convert file name or path ARG from MSYS format to w32 format. Return -# result in func_convert_core_msys_to_w32_result. -func_convert_core_msys_to_w32 () -{ - $debug_cmd - - # awkward: cmd appends spaces to result - func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null | - $SED -e 's/[ ]*$//' -e "$sed_naive_backslashify"` -} -#end: func_convert_core_msys_to_w32 - - -# func_convert_file_check ARG1 ARG2 -# Verify that ARG1 (a file name in $build format) was converted to $host -# format in ARG2. Otherwise, emit an error message, but continue (resetting -# func_to_host_file_result to ARG1). -func_convert_file_check () -{ - $debug_cmd - - if test -z "$2" && test -n "$1"; then - func_error "Could not determine host file name corresponding to" - func_error " '$1'" - func_error "Continuing, but uninstalled executables may not work." - # Fallback: - func_to_host_file_result=$1 - fi -} -# end func_convert_file_check - - -# func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH -# Verify that FROM_PATH (a path in $build format) was converted to $host -# format in TO_PATH. Otherwise, emit an error message, but continue, resetting -# func_to_host_file_result to a simplistic fallback value (see below). -func_convert_path_check () -{ - $debug_cmd - - if test -z "$4" && test -n "$3"; then - func_error "Could not determine the host path corresponding to" - func_error " '$3'" - func_error "Continuing, but uninstalled executables may not work." - # Fallback. This is a deliberately simplistic "conversion" and - # should not be "improved". See libtool.info. - if test "x$1" != "x$2"; then - lt_replace_pathsep_chars="s|$1|$2|g" - func_to_host_path_result=`echo "$3" | - $SED -e "$lt_replace_pathsep_chars"` - else - func_to_host_path_result=$3 - fi - fi -} -# end func_convert_path_check - - -# func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG -# Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT -# and appending REPL if ORIG matches BACKPAT. -func_convert_path_front_back_pathsep () -{ - $debug_cmd - - case $4 in - $1 ) func_to_host_path_result=$3$func_to_host_path_result - ;; - esac - case $4 in - $2 ) func_append func_to_host_path_result "$3" - ;; - esac -} -# end func_convert_path_front_back_pathsep - - -################################################## -# $build to $host FILE NAME CONVERSION FUNCTIONS # -################################################## -# invoked via '$to_host_file_cmd ARG' -# -# In each case, ARG is the path to be converted from $build to $host format. -# Result will be available in $func_to_host_file_result. - - -# func_to_host_file ARG -# Converts the file name ARG from $build format to $host format. Return result -# in func_to_host_file_result. -func_to_host_file () -{ - $debug_cmd - - $to_host_file_cmd "$1" -} -# end func_to_host_file - - -# func_to_tool_file ARG LAZY -# converts the file name ARG from $build format to toolchain format. Return -# result in func_to_tool_file_result. If the conversion in use is listed -# in (the comma separated) LAZY, no conversion takes place. -func_to_tool_file () -{ - $debug_cmd - - case ,$2, in - *,"$to_tool_file_cmd",*) - func_to_tool_file_result=$1 - ;; - *) - $to_tool_file_cmd "$1" - func_to_tool_file_result=$func_to_host_file_result - ;; - esac -} -# end func_to_tool_file - - -# func_convert_file_noop ARG -# Copy ARG to func_to_host_file_result. -func_convert_file_noop () -{ - func_to_host_file_result=$1 -} -# end func_convert_file_noop - - -# func_convert_file_msys_to_w32 ARG -# Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic -# conversion to w32 is not available inside the cwrapper. Returns result in -# func_to_host_file_result. -func_convert_file_msys_to_w32 () -{ - $debug_cmd - - func_to_host_file_result=$1 - if test -n "$1"; then - func_convert_core_msys_to_w32 "$1" - func_to_host_file_result=$func_convert_core_msys_to_w32_result - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_msys_to_w32 - - -# func_convert_file_cygwin_to_w32 ARG -# Convert file name ARG from Cygwin to w32 format. Returns result in -# func_to_host_file_result. -func_convert_file_cygwin_to_w32 () -{ - $debug_cmd - - func_to_host_file_result=$1 - if test -n "$1"; then - # because $build is cygwin, we call "the" cygpath in $PATH; no need to use - # LT_CYGPATH in this case. - func_to_host_file_result=`cygpath -m "$1"` - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_cygwin_to_w32 - - -# func_convert_file_nix_to_w32 ARG -# Convert file name ARG from *nix to w32 format. Requires a wine environment -# and a working winepath. Returns result in func_to_host_file_result. -func_convert_file_nix_to_w32 () -{ - $debug_cmd - - func_to_host_file_result=$1 - if test -n "$1"; then - func_convert_core_file_wine_to_w32 "$1" - func_to_host_file_result=$func_convert_core_file_wine_to_w32_result - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_nix_to_w32 - - -# func_convert_file_msys_to_cygwin ARG -# Convert file name ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. -# Returns result in func_to_host_file_result. -func_convert_file_msys_to_cygwin () -{ - $debug_cmd - - func_to_host_file_result=$1 - if test -n "$1"; then - func_convert_core_msys_to_w32 "$1" - func_cygpath -u "$func_convert_core_msys_to_w32_result" - func_to_host_file_result=$func_cygpath_result - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_msys_to_cygwin - - -# func_convert_file_nix_to_cygwin ARG -# Convert file name ARG from *nix to Cygwin format. Requires Cygwin installed -# in a wine environment, working winepath, and LT_CYGPATH set. Returns result -# in func_to_host_file_result. -func_convert_file_nix_to_cygwin () -{ - $debug_cmd - - func_to_host_file_result=$1 - if test -n "$1"; then - # convert from *nix to w32, then use cygpath to convert from w32 to cygwin. - func_convert_core_file_wine_to_w32 "$1" - func_cygpath -u "$func_convert_core_file_wine_to_w32_result" - func_to_host_file_result=$func_cygpath_result - fi - func_convert_file_check "$1" "$func_to_host_file_result" -} -# end func_convert_file_nix_to_cygwin - - -############################################# -# $build to $host PATH CONVERSION FUNCTIONS # -############################################# -# invoked via '$to_host_path_cmd ARG' -# -# In each case, ARG is the path to be converted from $build to $host format. -# The result will be available in $func_to_host_path_result. -# -# Path separators are also converted from $build format to $host format. If -# ARG begins or ends with a path separator character, it is preserved (but -# converted to $host format) on output. -# -# All path conversion functions are named using the following convention: -# file name conversion function : func_convert_file_X_to_Y () -# path conversion function : func_convert_path_X_to_Y () -# where, for any given $build/$host combination the 'X_to_Y' value is the -# same. If conversion functions are added for new $build/$host combinations, -# the two new functions must follow this pattern, or func_init_to_host_path_cmd -# will break. - - -# func_init_to_host_path_cmd -# Ensures that function "pointer" variable $to_host_path_cmd is set to the -# appropriate value, based on the value of $to_host_file_cmd. -to_host_path_cmd= -func_init_to_host_path_cmd () -{ - $debug_cmd - - if test -z "$to_host_path_cmd"; then - func_stripname 'func_convert_file_' '' "$to_host_file_cmd" - to_host_path_cmd=func_convert_path_$func_stripname_result - fi -} - - -# func_to_host_path ARG -# Converts the path ARG from $build format to $host format. Return result -# in func_to_host_path_result. -func_to_host_path () -{ - $debug_cmd - - func_init_to_host_path_cmd - $to_host_path_cmd "$1" -} -# end func_to_host_path - - -# func_convert_path_noop ARG -# Copy ARG to func_to_host_path_result. -func_convert_path_noop () -{ - func_to_host_path_result=$1 -} -# end func_convert_path_noop - - -# func_convert_path_msys_to_w32 ARG -# Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic -# conversion to w32 is not available inside the cwrapper. Returns result in -# func_to_host_path_result. -func_convert_path_msys_to_w32 () -{ - $debug_cmd - - func_to_host_path_result=$1 - if test -n "$1"; then - # Remove leading and trailing path separator characters from ARG. MSYS - # behavior is inconsistent here; cygpath turns them into '.;' and ';.'; - # and winepath ignores them completely. - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" - func_to_host_path_result=$func_convert_core_msys_to_w32_result - func_convert_path_check : ";" \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" - fi -} -# end func_convert_path_msys_to_w32 - - -# func_convert_path_cygwin_to_w32 ARG -# Convert path ARG from Cygwin to w32 format. Returns result in -# func_to_host_file_result. -func_convert_path_cygwin_to_w32 () -{ - $debug_cmd - - func_to_host_path_result=$1 - if test -n "$1"; then - # See func_convert_path_msys_to_w32: - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"` - func_convert_path_check : ";" \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" - fi -} -# end func_convert_path_cygwin_to_w32 - - -# func_convert_path_nix_to_w32 ARG -# Convert path ARG from *nix to w32 format. Requires a wine environment and -# a working winepath. Returns result in func_to_host_file_result. -func_convert_path_nix_to_w32 () -{ - $debug_cmd - - func_to_host_path_result=$1 - if test -n "$1"; then - # See func_convert_path_msys_to_w32: - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" - func_to_host_path_result=$func_convert_core_path_wine_to_w32_result - func_convert_path_check : ";" \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" ";" "$1" - fi -} -# end func_convert_path_nix_to_w32 - - -# func_convert_path_msys_to_cygwin ARG -# Convert path ARG from MSYS to Cygwin format. Requires LT_CYGPATH set. -# Returns result in func_to_host_file_result. -func_convert_path_msys_to_cygwin () -{ - $debug_cmd - - func_to_host_path_result=$1 - if test -n "$1"; then - # See func_convert_path_msys_to_w32: - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_convert_core_msys_to_w32 "$func_to_host_path_tmp1" - func_cygpath -u -p "$func_convert_core_msys_to_w32_result" - func_to_host_path_result=$func_cygpath_result - func_convert_path_check : : \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" : "$1" - fi -} -# end func_convert_path_msys_to_cygwin - - -# func_convert_path_nix_to_cygwin ARG -# Convert path ARG from *nix to Cygwin format. Requires Cygwin installed in a -# a wine environment, working winepath, and LT_CYGPATH set. Returns result in -# func_to_host_file_result. -func_convert_path_nix_to_cygwin () -{ - $debug_cmd - - func_to_host_path_result=$1 - if test -n "$1"; then - # Remove leading and trailing path separator characters from - # ARG. msys behavior is inconsistent here, cygpath turns them - # into '.;' and ';.', and winepath ignores them completely. - func_stripname : : "$1" - func_to_host_path_tmp1=$func_stripname_result - func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1" - func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result" - func_to_host_path_result=$func_cygpath_result - func_convert_path_check : : \ - "$func_to_host_path_tmp1" "$func_to_host_path_result" - func_convert_path_front_back_pathsep ":*" "*:" : "$1" - fi -} -# end func_convert_path_nix_to_cygwin - - -# func_dll_def_p FILE -# True iff FILE is a Windows DLL '.def' file. -# Keep in sync with _LT_DLL_DEF_P in libtool.m4 -func_dll_def_p () -{ - $debug_cmd - - func_dll_def_p_tmp=`$SED -n \ - -e 's/^[ ]*//' \ - -e '/^\(;.*\)*$/d' \ - -e 's/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p' \ - -e q \ - "$1"` - test DEF = "$func_dll_def_p_tmp" -} - - -# func_mode_compile arg... -func_mode_compile () -{ - $debug_cmd - - # Get the compilation command and the source file. - base_compile= - srcfile=$nonopt # always keep a non-empty value in "srcfile" - suppress_opt=yes - suppress_output= - arg_mode=normal - libobj= - later= - pie_flag= - - for arg - do - case $arg_mode in - arg ) - # do not "continue". Instead, add this to base_compile - lastarg=$arg - arg_mode=normal - ;; - - target ) - libobj=$arg - arg_mode=normal - continue - ;; - - normal ) - # Accept any command-line options. - case $arg in - -o) - test -n "$libobj" && \ - func_fatal_error "you cannot specify '-o' more than once" - arg_mode=target - continue - ;; - - -pie | -fpie | -fPIE) - func_append pie_flag " $arg" - continue - ;; - - -shared | -static | -prefer-pic | -prefer-non-pic) - func_append later " $arg" - continue - ;; - - -no-suppress) - suppress_opt=no - continue - ;; - - -Xcompiler) - arg_mode=arg # the next one goes into the "base_compile" arg list - continue # The current "srcfile" will either be retained or - ;; # replaced later. 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then - libdir=LIBDIR - eval flag=\"$hardcode_libdir_flag_spec\" - - $ECHO " - use the '$flag' linker flag" - fi - if test -n "$admincmds"; then - $ECHO " - have your system administrator run these commands:$admincmds" - fi - if test -f /etc/ld.so.conf; then - echo " - have your system administrator add LIBDIR to '/etc/ld.so.conf'" - fi - echo - - echo "See any operating system documentation about shared libraries for" - case $host in - solaris2.[6789]|solaris2.1[0-9]) - echo "more information, such as the ld(1), crle(1) and ld.so(8) manual" - echo "pages." - ;; - *) - echo "more information, such as the ld(1) and ld.so(8) manual pages." - ;; - esac - echo "----------------------------------------------------------------------" - fi - exit $EXIT_SUCCESS -} - -test finish = "$opt_mode" && func_mode_finish ${1+"$@"} - - -# func_mode_install arg... -func_mode_install () -{ - $debug_cmd - - # There may be an optional sh(1) argument at the beginning of - # install_prog (especially on Windows NT). - if test "$SHELL" = "$nonopt" || test /bin/sh = "$nonopt" || - # Allow the use of GNU shtool's install command. - case $nonopt in *shtool*) :;; *) false;; esac - then - # Aesthetically quote it. - func_quote_for_eval "$nonopt" - install_prog="$func_quote_for_eval_result " - arg=$1 - shift - else - install_prog= - arg=$nonopt - fi - - # The real first argument should be the name of the installation program. - # Aesthetically quote it. - func_quote_for_eval "$arg" - func_append install_prog "$func_quote_for_eval_result" - install_shared_prog=$install_prog - case " $install_prog " in - *[\\\ /]cp\ *) install_cp=: ;; - *) install_cp=false ;; - esac - - # We need to accept at least all the BSD install flags. - dest= - files= - opts= - prev= - install_type= - isdir=false - stripme= - no_mode=: - for arg - do - arg2= - if test -n "$dest"; then - func_append files " $dest" - dest=$arg - continue - fi - - case $arg in - -d) isdir=: ;; - -f) - if $install_cp; then :; else - prev=$arg - fi - ;; - -g | -m | -o) - prev=$arg - ;; - -s) - stripme=" -s" - continue - ;; - -*) - ;; - *) - # If the previous option needed an argument, then skip it. - if test -n "$prev"; then - if test X-m = "X$prev" && test -n "$install_override_mode"; then - arg2=$install_override_mode - no_mode=false - fi - prev= - else - dest=$arg - continue - fi - ;; - esac - - # Aesthetically quote the argument. - func_quote_for_eval "$arg" - func_append install_prog " $func_quote_for_eval_result" - if test -n "$arg2"; then - func_quote_for_eval "$arg2" - fi - func_append install_shared_prog " $func_quote_for_eval_result" - done - - test -z "$install_prog" && \ - func_fatal_help "you must specify an install program" - - test -n "$prev" && \ - func_fatal_help "the '$prev' option requires an argument" - - if test -n "$install_override_mode" && $no_mode; then - if $install_cp; then :; else - func_quote_for_eval "$install_override_mode" - func_append install_shared_prog " -m $func_quote_for_eval_result" - fi - fi - - if test -z "$files"; then - if test -z "$dest"; then - func_fatal_help "no file or destination specified" - else - func_fatal_help "you must specify a destination" - fi - fi - - # Strip any trailing slash from the destination. - func_stripname '' '/' "$dest" - dest=$func_stripname_result - - # Check to see that the destination is a directory. - test -d "$dest" && isdir=: - if $isdir; then - destdir=$dest - destname= - else - func_dirname_and_basename "$dest" "" "." - destdir=$func_dirname_result - destname=$func_basename_result - - # Not a directory, so check to see that there is only one file specified. - set dummy $files; shift - test "$#" -gt 1 && \ - func_fatal_help "'$dest' is not a directory" - fi - case $destdir in - [\\/]* | [A-Za-z]:[\\/]*) ;; - *) - for file in $files; do - case $file in - *.lo) ;; - *) - func_fatal_help "'$destdir' must be an absolute directory name" - ;; - esac - done - ;; - esac - - # This variable tells wrapper scripts just to set variables rather - # than running their programs. - libtool_install_magic=$magic - - staticlibs= - future_libdirs= - current_libdirs= - for file in $files; do - - # Do each installation. - case $file in - *.$libext) - # Do the static libraries later. - func_append staticlibs " $file" - ;; - - *.la) - func_resolve_sysroot "$file" - file=$func_resolve_sysroot_result - - # Check to see that this really is a libtool archive. - func_lalib_unsafe_p "$file" \ - || func_fatal_help "'$file' is not a valid libtool archive" - - library_names= - old_library= - relink_command= - func_source "$file" - - # Add the libdir to current_libdirs if it is the destination. - if test "X$destdir" = "X$libdir"; then - case "$current_libdirs " in - *" $libdir "*) ;; - *) func_append current_libdirs " $libdir" ;; - esac - else - # Note the libdir as a future libdir. - case "$future_libdirs " in - *" $libdir "*) ;; - *) func_append future_libdirs " $libdir" ;; - esac - fi - - func_dirname "$file" "/" "" - dir=$func_dirname_result - func_append dir "$objdir" - - if test -n "$relink_command"; then - # Determine the prefix the user has applied to our future dir. - inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"` - - # Don't allow the user to place us outside of our expected - # location b/c this prevents finding dependent libraries that - # are installed to the same prefix. - # At present, this check doesn't affect windows .dll's that - # are installed into $libdir/../bin (currently, that works fine) - # but it's something to keep an eye on. - test "$inst_prefix_dir" = "$destdir" && \ - func_fatal_error "error: cannot install '$file' to a directory not ending in $libdir" - - if test -n "$inst_prefix_dir"; then - # Stick the inst_prefix_dir data into the link command. - relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"` - else - relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"` - fi - - func_warning "relinking '$file'" - func_show_eval "$relink_command" \ - 'func_fatal_error "error: relink '\''$file'\'' with the above command before installing it"' - fi - - # See the names of the shared library. - set dummy $library_names; shift - if test -n "$1"; then - realname=$1 - shift - - srcname=$realname - test -n "$relink_command" && srcname=${realname}T - - # Install the shared library and build the symlinks. - func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \ - 'exit $?' - tstripme=$stripme - case $host_os in - cygwin* | mingw* | pw32* | cegcc*) - case $realname in - *.dll.a) - tstripme= - ;; - esac - ;; - os2*) - case $realname in - *_dll.a) - tstripme= - ;; - esac - ;; - esac - if test -n "$tstripme" && test -n "$striplib"; then - func_show_eval "$striplib $destdir/$realname" 'exit $?' - fi - - if test "$#" -gt 0; then - # Delete the old symlinks, and create new ones. - # Try 'ln -sf' first, because the 'ln' binary might depend on - # the symlink we replace! Solaris /bin/ln does not understand -f, - # so we also need to try rm && ln -s. - for linkname - do - test "$linkname" != "$realname" \ - && func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })" - done - fi - - # Do each command in the postinstall commands. - lib=$destdir/$realname - func_execute_cmds "$postinstall_cmds" 'exit $?' - fi - - # Install the pseudo-library for information purposes. - func_basename "$file" - name=$func_basename_result - instname=$dir/${name}i - func_show_eval "$install_prog $instname $destdir/$name" 'exit $?' - - # Maybe install the static library, too. - test -n "$old_library" && func_append staticlibs " $dir/$old_library" - ;; - - *.lo) - # Install (i.e. copy) a libtool object. - - # Figure out destination file name, if it wasn't already specified. - if test -n "$destname"; then - destfile=$destdir/$destname - else - func_basename "$file" - destfile=$func_basename_result - destfile=$destdir/$destfile - fi - - # Deduce the name of the destination old-style object file. - case $destfile in - *.lo) - func_lo2o "$destfile" - staticdest=$func_lo2o_result - ;; - *.$objext) - staticdest=$destfile - destfile= - ;; - *) - func_fatal_help "cannot copy a libtool object to '$destfile'" - ;; - esac - - # Install the libtool object if requested. - test -n "$destfile" && \ - func_show_eval "$install_prog $file $destfile" 'exit $?' - - # Install the old object if enabled. - if test yes = "$build_old_libs"; then - # Deduce the name of the old-style object file. - func_lo2o "$file" - staticobj=$func_lo2o_result - func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?' - fi - exit $EXIT_SUCCESS - ;; - - *) - # Figure out destination file name, if it wasn't already specified. - if test -n "$destname"; then - destfile=$destdir/$destname - else - func_basename "$file" - destfile=$func_basename_result - destfile=$destdir/$destfile - fi - - # If the file is missing, and there is a .exe on the end, strip it - # because it is most likely a libtool script we actually want to - # install - stripped_ext= - case $file in - *.exe) - if test ! -f "$file"; then - func_stripname '' '.exe' "$file" - file=$func_stripname_result - stripped_ext=.exe - fi - ;; - esac - - # Do a test to see if this is really a libtool program. - case $host in - *cygwin* | *mingw*) - if func_ltwrapper_executable_p "$file"; then - func_ltwrapper_scriptname "$file" - wrapper=$func_ltwrapper_scriptname_result - else - func_stripname '' '.exe' "$file" - wrapper=$func_stripname_result - fi - ;; - *) - wrapper=$file - ;; - esac - if func_ltwrapper_script_p "$wrapper"; then - notinst_deplibs= - relink_command= - - func_source "$wrapper" - - # Check the variables that should have been set. - test -z "$generated_by_libtool_version" && \ - func_fatal_error "invalid libtool wrapper script '$wrapper'" - - finalize=: - for lib in $notinst_deplibs; do - # Check to see that each library is installed. - libdir= - if test -f "$lib"; then - func_source "$lib" - fi - libfile=$libdir/`$ECHO "$lib" | $SED 's%^.*/%%g'` - if test -n "$libdir" && test ! -f "$libfile"; then - func_warning "'$lib' has not been installed in '$libdir'" - finalize=false - fi - done - - relink_command= - func_source "$wrapper" - - outputname= - if test no = "$fast_install" && test -n "$relink_command"; then - $opt_dry_run || { - if $finalize; then - tmpdir=`func_mktempdir` - func_basename "$file$stripped_ext" - file=$func_basename_result - outputname=$tmpdir/$file - # Replace the output file specification. - relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'` - - $opt_quiet || { - func_quote_for_expand "$relink_command" - eval "func_echo $func_quote_for_expand_result" - } - if eval "$relink_command"; then : - else - func_error "error: relink '$file' with the above command before installing it" - $opt_dry_run || ${RM}r "$tmpdir" - continue - fi - file=$outputname - else - func_warning "cannot relink '$file'" - fi - } - else - # Install the binary that we compiled earlier. - file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"` - fi - fi - - # remove .exe since cygwin /usr/bin/install will append another - # one anyway - case $install_prog,$host in - */usr/bin/install*,*cygwin*) - case $file:$destfile in - *.exe:*.exe) - # this is ok - ;; - *.exe:*) - destfile=$destfile.exe - ;; - *:*.exe) - func_stripname '' '.exe' "$destfile" - destfile=$func_stripname_result - ;; - esac - ;; - esac - func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?' - $opt_dry_run || if test -n "$outputname"; then - ${RM}r "$tmpdir" - fi - ;; - esac - done - - for file in $staticlibs; do - func_basename "$file" - name=$func_basename_result - - # Set up the ranlib parameters. - oldlib=$destdir/$name - func_to_tool_file "$oldlib" func_convert_file_msys_to_w32 - tool_oldlib=$func_to_tool_file_result - - func_show_eval "$install_prog \$file \$oldlib" 'exit $?' - - if test -n "$stripme" && test -n "$old_striplib"; then - func_show_eval "$old_striplib $tool_oldlib" 'exit $?' - fi - - # Do each command in the postinstall commands. - func_execute_cmds "$old_postinstall_cmds" 'exit $?' - done - - test -n "$future_libdirs" && \ - func_warning "remember to run '$progname --finish$future_libdirs'" - - if test -n "$current_libdirs"; then - # Maybe just do a dry run. - $opt_dry_run && current_libdirs=" -n$current_libdirs" - exec_cmd='$SHELL "$progpath" $preserve_args --finish$current_libdirs' - else - exit $EXIT_SUCCESS - fi -} - -test install = "$opt_mode" && func_mode_install ${1+"$@"} - - -# func_generate_dlsyms outputname originator pic_p -# Extract symbols from dlprefiles and create ${outputname}S.o with -# a dlpreopen symbol table. -func_generate_dlsyms () -{ - $debug_cmd - - my_outputname=$1 - my_originator=$2 - my_pic_p=${3-false} - my_prefix=`$ECHO "$my_originator" | $SED 's%[^a-zA-Z0-9]%_%g'` - my_dlsyms= - - if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then - if test -n "$NM" && test -n "$global_symbol_pipe"; then - my_dlsyms=${my_outputname}S.c - else - func_error "not configured to extract global symbols from dlpreopened files" - fi - fi - - if test -n "$my_dlsyms"; then - case $my_dlsyms in - "") ;; - *.c) - # Discover the nlist of each of the dlfiles. - nlist=$output_objdir/$my_outputname.nm - - func_show_eval "$RM $nlist ${nlist}S ${nlist}T" - - # Parse the name list into a source file. - func_verbose "creating $output_objdir/$my_dlsyms" - - $opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\ -/* $my_dlsyms - symbol resolution table for '$my_outputname' dlsym emulation. */ -/* Generated by $PROGRAM (GNU $PACKAGE) $VERSION */ - -#ifdef __cplusplus -extern \"C\" { -#endif - -#if defined __GNUC__ && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4)) -#pragma GCC diagnostic ignored \"-Wstrict-prototypes\" -#endif - -/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ -#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE -/* DATA imports from DLLs on WIN32 can't be const, because runtime - relocations are performed -- see ld's documentation on pseudo-relocs. */ -# define LT_DLSYM_CONST -#elif defined __osf__ -/* This system does not cope well with relocations in const data. */ -# define LT_DLSYM_CONST -#else -# define LT_DLSYM_CONST const -#endif - -#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0) - -/* External symbol declarations for the compiler. */\ -" - - if test yes = "$dlself"; then - func_verbose "generating symbol list for '$output'" - - $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist" - - # Add our own program objects to the symbol list. - progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP` - for progfile in $progfiles; do - func_to_tool_file "$progfile" func_convert_file_msys_to_w32 - func_verbose "extracting global C symbols from '$func_to_tool_file_result'" - $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'" - done - - if test -n "$exclude_expsyms"; then - $opt_dry_run || { - eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T' - eval '$MV "$nlist"T "$nlist"' - } - fi - - if test -n "$export_symbols_regex"; then - $opt_dry_run || { - eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T' - eval '$MV "$nlist"T "$nlist"' - } - fi - - # Prepare the list of exported symbols - if test -z "$export_symbols"; then - export_symbols=$output_objdir/$outputname.exp - $opt_dry_run || { - $RM $export_symbols - eval "$SED -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"' - case $host in - *cygwin* | *mingw* | *cegcc* ) - eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' - eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"' - ;; - esac - } - else - $opt_dry_run || { - eval "$SED -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"' - eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T' - eval '$MV "$nlist"T "$nlist"' - case $host in - *cygwin* | *mingw* | *cegcc* ) - eval "echo EXPORTS "'> "$output_objdir/$outputname.def"' - eval 'cat "$nlist" >> "$output_objdir/$outputname.def"' - ;; - esac - } - fi - fi - - for dlprefile in $dlprefiles; do - func_verbose "extracting global C symbols from '$dlprefile'" - func_basename "$dlprefile" - name=$func_basename_result - case $host in - *cygwin* | *mingw* | *cegcc* ) - # if an import library, we need to obtain dlname - if func_win32_import_lib_p "$dlprefile"; then - func_tr_sh "$dlprefile" - eval "curr_lafile=\$libfile_$func_tr_sh_result" - dlprefile_dlbasename= - if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then - # Use subshell, to avoid clobbering current variable values - dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"` - if test -n "$dlprefile_dlname"; then - func_basename "$dlprefile_dlname" - dlprefile_dlbasename=$func_basename_result - else - # no lafile. user explicitly requested -dlpreopen . - $sharedlib_from_linklib_cmd "$dlprefile" - dlprefile_dlbasename=$sharedlib_from_linklib_result - fi - fi - $opt_dry_run || { - if test -n "$dlprefile_dlbasename"; then - eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"' - else - func_warning "Could not compute DLL name from $name" - eval '$ECHO ": $name " >> "$nlist"' - fi - func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 - eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe | - $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'" - } - else # not an import lib - $opt_dry_run || { - eval '$ECHO ": $name " >> "$nlist"' - func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 - eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" - } - fi - ;; - *) - $opt_dry_run || { - eval '$ECHO ": $name " >> "$nlist"' - func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32 - eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'" - } - ;; - esac - done - - $opt_dry_run || { - # Make sure we have at least an empty file. - test -f "$nlist" || : > "$nlist" - - if test -n "$exclude_expsyms"; then - $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T - $MV "$nlist"T "$nlist" - fi - - # Try sorting and uniquifying the output. - if $GREP -v "^: " < "$nlist" | - if sort -k 3 /dev/null 2>&1; then - sort -k 3 - else - sort +2 - fi | - uniq > "$nlist"S; then - : - else - $GREP -v "^: " < "$nlist" > "$nlist"S - fi - - if test -f "$nlist"S; then - eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"' - else - echo '/* NONE */' >> "$output_objdir/$my_dlsyms" - fi - - func_show_eval '$RM "${nlist}I"' - if test -n "$global_symbol_to_import"; then - eval "$global_symbol_to_import"' < "$nlist"S > "$nlist"I' - fi - - echo >> "$output_objdir/$my_dlsyms" "\ - -/* The mapping between symbol names and symbols. */ -typedef struct { - const char *name; - void *address; -} lt_dlsymlist; -extern LT_DLSYM_CONST lt_dlsymlist -lt_${my_prefix}_LTX_preloaded_symbols[];\ -" - - if test -s "$nlist"I; then - echo >> "$output_objdir/$my_dlsyms" "\ -static void lt_syminit(void) -{ - LT_DLSYM_CONST lt_dlsymlist *symbol = lt_${my_prefix}_LTX_preloaded_symbols; - for (; symbol->name; ++symbol) - {" - $SED 's/.*/ if (STREQ (symbol->name, \"&\")) symbol->address = (void *) \&&;/' < "$nlist"I >> "$output_objdir/$my_dlsyms" - echo >> "$output_objdir/$my_dlsyms" "\ - } -}" - fi - echo >> "$output_objdir/$my_dlsyms" "\ -LT_DLSYM_CONST lt_dlsymlist -lt_${my_prefix}_LTX_preloaded_symbols[] = -{ {\"$my_originator\", (void *) 0}," - - if test -s "$nlist"I; then - echo >> "$output_objdir/$my_dlsyms" "\ - {\"@INIT@\", (void *) <_syminit}," - fi - - case $need_lib_prefix in - no) - eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms" - ;; - *) - eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms" - ;; - esac - echo >> "$output_objdir/$my_dlsyms" "\ - {0, (void *) 0} -}; - -/* This works around a problem in FreeBSD linker */ -#ifdef FREEBSD_WORKAROUND -static const void *lt_preloaded_setup() { - return lt_${my_prefix}_LTX_preloaded_symbols; -} -#endif - -#ifdef __cplusplus -} -#endif\ -" - } # !$opt_dry_run - - pic_flag_for_symtable= - case "$compile_command " in - *" -static "*) ;; - *) - case $host in - # compiling the symbol table file with pic_flag works around - # a FreeBSD bug that causes programs to crash when -lm is - # linked before any other PIC object. But we must not use - # pic_flag when linking with -static. The problem exists in - # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1. - *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*) - pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;; - *-*-hpux*) - pic_flag_for_symtable=" $pic_flag" ;; - *) - $my_pic_p && pic_flag_for_symtable=" $pic_flag" - ;; - esac - ;; - esac - symtab_cflags= - for arg in $LTCFLAGS; do - case $arg in - -pie | -fpie | -fPIE) ;; - *) func_append symtab_cflags " $arg" ;; - esac - done - - # Now compile the dynamic symbol file. - func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?' - - # Clean up the generated files. - func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T" "${nlist}I"' - - # Transform the symbol file into the correct name. - symfileobj=$output_objdir/${my_outputname}S.$objext - case $host in - *cygwin* | *mingw* | *cegcc* ) - if test -f "$output_objdir/$my_outputname.def"; then - compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` - finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"` - else - compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` - finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` - fi - ;; - *) - compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"` - finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"` - ;; - esac - ;; - *) - func_fatal_error "unknown suffix for '$my_dlsyms'" - ;; - esac - else - # We keep going just in case the user didn't refer to - # lt_preloaded_symbols. The linker will fail if global_symbol_pipe - # really was required. - - # Nullify the symbol file. - compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"` - finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"` - fi -} - -# func_cygming_gnu_implib_p ARG -# This predicate returns with zero status (TRUE) if -# ARG is a GNU/binutils-style import library. Returns -# with nonzero status (FALSE) otherwise. -func_cygming_gnu_implib_p () -{ - $debug_cmd - - func_to_tool_file "$1" func_convert_file_msys_to_w32 - func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'` - test -n "$func_cygming_gnu_implib_tmp" -} - -# func_cygming_ms_implib_p ARG -# This predicate returns with zero status (TRUE) if -# ARG is an MS-style import library. Returns -# with nonzero status (FALSE) otherwise. -func_cygming_ms_implib_p () -{ - $debug_cmd - - func_to_tool_file "$1" func_convert_file_msys_to_w32 - func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'` - test -n "$func_cygming_ms_implib_tmp" -} - -# func_win32_libid arg -# return the library type of file 'arg' -# -# Need a lot of goo to handle *both* DLLs and import libs -# Has to be a shell function in order to 'eat' the argument -# that is supplied when $file_magic_command is called. -# Despite the name, also deal with 64 bit binaries. -func_win32_libid () -{ - $debug_cmd - - win32_libid_type=unknown - win32_fileres=`file -L $1 2>/dev/null` - case $win32_fileres in - *ar\ archive\ import\ library*) # definitely import - win32_libid_type="x86 archive import" - ;; - *ar\ archive*) # could be an import, or static - # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD. - if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null | - $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then - case $nm_interface in - "MS dumpbin") - if func_cygming_ms_implib_p "$1" || - func_cygming_gnu_implib_p "$1" - then - win32_nmres=import - else - win32_nmres= - fi - ;; - *) - func_to_tool_file "$1" func_convert_file_msys_to_w32 - win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" | - $SED -n -e ' - 1,100{ - / I /{ - s|.*|import| - p - q - } - }'` - ;; - esac - case $win32_nmres in - import*) win32_libid_type="x86 archive import";; - *) win32_libid_type="x86 archive static";; - esac - fi - ;; - *DLL*) - win32_libid_type="x86 DLL" - ;; - *executable*) # but shell scripts are "executable" too... - case $win32_fileres in - *MS\ Windows\ PE\ Intel*) - win32_libid_type="x86 DLL" - ;; - esac - ;; - esac - $ECHO "$win32_libid_type" -} - -# func_cygming_dll_for_implib ARG -# -# Platform-specific function to extract the -# name of the DLL associated with the specified -# import library ARG. -# Invoked by eval'ing the libtool variable -# $sharedlib_from_linklib_cmd -# Result is available in the variable -# $sharedlib_from_linklib_result -func_cygming_dll_for_implib () -{ - $debug_cmd - - sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"` -} - -# func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs -# -# The is the core of a fallback implementation of a -# platform-specific function to extract the name of the -# DLL associated with the specified import library LIBNAME. -# -# SECTION_NAME is either .idata$6 or .idata$7, depending -# on the platform and compiler that created the implib. -# -# Echos the name of the DLL associated with the -# specified import library. -func_cygming_dll_for_implib_fallback_core () -{ - $debug_cmd - - match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"` - $OBJDUMP -s --section "$1" "$2" 2>/dev/null | - $SED '/^Contents of section '"$match_literal"':/{ - # Place marker at beginning of archive member dllname section - s/.*/====MARK====/ - p - d - } - # These lines can sometimes be longer than 43 characters, but - # are always uninteresting - /:[ ]*file format pe[i]\{,1\}-/d - /^In archive [^:]*:/d - # Ensure marker is printed - /^====MARK====/p - # Remove all lines with less than 43 characters - /^.\{43\}/!d - # From remaining lines, remove first 43 characters - s/^.\{43\}//' | - $SED -n ' - # Join marker and all lines until next marker into a single line - /^====MARK====/ b para - H - $ b para - b - :para - x - s/\n//g - # Remove the marker - s/^====MARK====// - # Remove trailing dots and whitespace - s/[\. \t]*$// - # Print - /./p' | - # we now have a list, one entry per line, of the stringified - # contents of the appropriate section of all members of the - # archive that possess that section. Heuristic: eliminate - # all those that have a first or second character that is - # a '.' (that is, objdump's representation of an unprintable - # character.) This should work for all archives with less than - # 0x302f exports -- but will fail for DLLs whose name actually - # begins with a literal '.' or a single character followed by - # a '.'. - # - # Of those that remain, print the first one. - $SED -e '/^\./d;/^.\./d;q' -} - -# func_cygming_dll_for_implib_fallback ARG -# Platform-specific function to extract the -# name of the DLL associated with the specified -# import library ARG. -# -# This fallback implementation is for use when $DLLTOOL -# does not support the --identify-strict option. -# Invoked by eval'ing the libtool variable -# $sharedlib_from_linklib_cmd -# Result is available in the variable -# $sharedlib_from_linklib_result -func_cygming_dll_for_implib_fallback () -{ - $debug_cmd - - if func_cygming_gnu_implib_p "$1"; then - # binutils import library - sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"` - elif func_cygming_ms_implib_p "$1"; then - # ms-generated import library - sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"` - else - # unknown - sharedlib_from_linklib_result= - fi -} - - -# func_extract_an_archive dir oldlib -func_extract_an_archive () -{ - $debug_cmd - - f_ex_an_ar_dir=$1; shift - f_ex_an_ar_oldlib=$1 - if test yes = "$lock_old_archive_extraction"; then - lockfile=$f_ex_an_ar_oldlib.lock - until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do - func_echo "Waiting for $lockfile to be removed" - sleep 2 - done - fi - func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \ - 'stat=$?; rm -f "$lockfile"; exit $stat' - if test yes = "$lock_old_archive_extraction"; then - $opt_dry_run || rm -f "$lockfile" - fi - if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then - : - else - func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib" - fi -} - - -# func_extract_archives gentop oldlib ... -func_extract_archives () -{ - $debug_cmd - - my_gentop=$1; shift - my_oldlibs=${1+"$@"} - my_oldobjs= - my_xlib= - my_xabs= - my_xdir= - - for my_xlib in $my_oldlibs; do - # Extract the objects. - case $my_xlib in - [\\/]* | [A-Za-z]:[\\/]*) my_xabs=$my_xlib ;; - *) my_xabs=`pwd`"/$my_xlib" ;; - esac - func_basename "$my_xlib" - my_xlib=$func_basename_result - my_xlib_u=$my_xlib - while :; do - case " $extracted_archives " in - *" $my_xlib_u "*) - func_arith $extracted_serial + 1 - extracted_serial=$func_arith_result - my_xlib_u=lt$extracted_serial-$my_xlib ;; - *) break ;; - esac - done - extracted_archives="$extracted_archives $my_xlib_u" - my_xdir=$my_gentop/$my_xlib_u - - func_mkdir_p "$my_xdir" - - case $host in - *-darwin*) - func_verbose "Extracting $my_xabs" - # Do not bother doing anything if just a dry run - $opt_dry_run || { - darwin_orig_dir=`pwd` - cd $my_xdir || exit $? - darwin_archive=$my_xabs - darwin_curdir=`pwd` - func_basename "$darwin_archive" - darwin_base_archive=$func_basename_result - darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true` - if test -n "$darwin_arches"; then - darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'` - darwin_arch= - func_verbose "$darwin_base_archive has multiple architectures $darwin_arches" - for darwin_arch in $darwin_arches; do - func_mkdir_p "unfat-$$/$darwin_base_archive-$darwin_arch" - $LIPO -thin $darwin_arch -output "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" "$darwin_archive" - cd "unfat-$$/$darwin_base_archive-$darwin_arch" - func_extract_an_archive "`pwd`" "$darwin_base_archive" - cd "$darwin_curdir" - $RM "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" - done # $darwin_arches - ## Okay now we've a bunch of thin objects, gotta fatten them up :) - darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$sed_basename" | sort -u` - darwin_file= - darwin_files= - for darwin_file in $darwin_filelist; do - darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP` - $LIPO -create -output "$darwin_file" $darwin_files - done # $darwin_filelist - $RM -rf unfat-$$ - cd "$darwin_orig_dir" - else - cd $darwin_orig_dir - func_extract_an_archive "$my_xdir" "$my_xabs" - fi # $darwin_arches - } # !$opt_dry_run - ;; - *) - func_extract_an_archive "$my_xdir" "$my_xabs" - ;; - esac - my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP` - done - - func_extract_archives_result=$my_oldobjs -} - - -# func_emit_wrapper [arg=no] -# -# Emit a libtool wrapper script on stdout. -# Don't directly open a file because we may want to -# incorporate the script contents within a cygwin/mingw -# wrapper executable. 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Do this before prepending - # to shlibpath, because on Windows, both are PATH and uninstalled - # libraries must come first. - if test -n "$dllsearchpath"; then - $ECHO "\ - # Add the dll search path components to the executable PATH - PATH=$dllsearchpath:\$PATH -" - fi - - # Export our shlibpath_var if we have one. - if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then - $ECHO "\ - # Add our own library path to $shlibpath_var - $shlibpath_var=\"$temp_rpath\$$shlibpath_var\" - - # Some systems cannot cope with colon-terminated $shlibpath_var - # The second colon is a workaround for a bug in BeOS R4 sed - $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\` - - export $shlibpath_var -" - fi - - $ECHO "\ - if test \"\$libtool_execute_magic\" != \"$magic\"; then - # Run the actual program with our arguments. - func_exec_program \${1+\"\$@\"} - fi - else - # The program doesn't exist. - \$ECHO \"\$0: error: '\$progdir/\$program' does not exist\" 1>&2 - \$ECHO \"This script is just a wrapper for \$program.\" 1>&2 - \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2 - exit 1 - fi -fi\ -" -} - - -# func_emit_cwrapperexe_src -# emit the source code for a wrapper executable on stdout -# Must ONLY be called from within func_mode_link because -# it depends on a number of variable set therein. -func_emit_cwrapperexe_src () -{ - cat < -#include -#ifdef _MSC_VER -# include -# include -# include -#else -# include -# include -# ifdef __CYGWIN__ -# include -# endif -#endif -#include -#include -#include -#include -#include -#include -#include -#include - -#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0) - -/* declarations of non-ANSI functions */ -#if defined __MINGW32__ -# ifdef __STRICT_ANSI__ -int _putenv (const char *); -# endif -#elif defined __CYGWIN__ -# ifdef __STRICT_ANSI__ -char *realpath (const char *, char *); -int putenv (char *); -int setenv (const char *, const char *, int); -# endif -/* #elif defined other_platform || defined ... */ -#endif - -/* portability defines, excluding path handling macros */ -#if defined _MSC_VER -# define setmode _setmode -# define stat _stat -# define chmod _chmod -# define getcwd _getcwd -# define putenv _putenv -# define S_IXUSR _S_IEXEC -#elif defined __MINGW32__ -# define setmode _setmode -# define stat _stat -# define chmod _chmod -# define getcwd _getcwd -# define putenv _putenv -#elif defined __CYGWIN__ -# define HAVE_SETENV -# define FOPEN_WB "wb" -/* #elif defined other platforms ... */ -#endif - -#if defined PATH_MAX -# define LT_PATHMAX PATH_MAX -#elif defined MAXPATHLEN -# define LT_PATHMAX MAXPATHLEN -#else -# define LT_PATHMAX 1024 -#endif - -#ifndef S_IXOTH -# define S_IXOTH 0 -#endif -#ifndef S_IXGRP -# define S_IXGRP 0 -#endif - -/* path handling portability macros */ -#ifndef DIR_SEPARATOR -# define DIR_SEPARATOR '/' -# define PATH_SEPARATOR ':' -#endif - -#if defined _WIN32 || defined __MSDOS__ || defined __DJGPP__ || \ - defined __OS2__ -# define HAVE_DOS_BASED_FILE_SYSTEM -# define FOPEN_WB "wb" -# ifndef DIR_SEPARATOR_2 -# define DIR_SEPARATOR_2 '\\' -# endif -# ifndef PATH_SEPARATOR_2 -# define PATH_SEPARATOR_2 ';' -# endif -#endif - -#ifndef DIR_SEPARATOR_2 -# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR) -#else /* DIR_SEPARATOR_2 */ -# define IS_DIR_SEPARATOR(ch) \ - (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2)) -#endif /* DIR_SEPARATOR_2 */ - -#ifndef PATH_SEPARATOR_2 -# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR) -#else /* PATH_SEPARATOR_2 */ -# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2) -#endif /* PATH_SEPARATOR_2 */ - -#ifndef FOPEN_WB -# define FOPEN_WB "w" -#endif -#ifndef _O_BINARY -# define _O_BINARY 0 -#endif - -#define XMALLOC(type, num) ((type *) xmalloc ((num) * sizeof(type))) -#define XFREE(stale) do { \ - if (stale) { free (stale); stale = 0; } \ -} while (0) - -#if defined LT_DEBUGWRAPPER -static int lt_debug = 1; -#else -static int lt_debug = 0; -#endif - -const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */ - -void *xmalloc (size_t num); -char *xstrdup (const char *string); -const char *base_name (const char *name); -char *find_executable (const char *wrapper); -char *chase_symlinks (const char *pathspec); -int make_executable (const char *path); -int check_executable (const char *path); -char *strendzap (char *str, const char *pat); -void lt_debugprintf (const char *file, int line, const char *fmt, ...); -void lt_fatal (const char *file, int line, const char *message, ...); -static const char *nonnull (const char *s); -static const char *nonempty (const char *s); -void lt_setenv (const char *name, const char *value); -char *lt_extend_str (const char *orig_value, const char *add, int to_end); -void lt_update_exe_path (const char *name, const char *value); -void lt_update_lib_path (const char *name, const char *value); -char **prepare_spawn (char **argv); -void lt_dump_script (FILE *f); -EOF - - cat <= 0) - && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))) - return 1; - else - return 0; -} - -int -make_executable (const char *path) -{ - int rval = 0; - struct stat st; - - lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n", - nonempty (path)); - if ((!path) || (!*path)) - return 0; - - if (stat (path, &st) >= 0) - { - rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR); - } - return rval; -} - -/* Searches for the full path of the wrapper. Returns - newly allocated full path name if found, NULL otherwise - Does not chase symlinks, even on platforms that support them. -*/ -char * -find_executable (const char *wrapper) -{ - int has_slash = 0; - const char *p; - const char *p_next; - /* static buffer for getcwd */ - char tmp[LT_PATHMAX + 1]; - size_t tmp_len; - char *concat_name; - - lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n", - nonempty (wrapper)); - - if ((wrapper == NULL) || (*wrapper == '\0')) - return NULL; - - /* Absolute path? */ -#if defined HAVE_DOS_BASED_FILE_SYSTEM - if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':') - { - concat_name = xstrdup (wrapper); - if (check_executable (concat_name)) - return concat_name; - XFREE (concat_name); - } - else - { -#endif - if (IS_DIR_SEPARATOR (wrapper[0])) - { - concat_name = xstrdup (wrapper); - if (check_executable (concat_name)) - return concat_name; - XFREE (concat_name); - } -#if defined HAVE_DOS_BASED_FILE_SYSTEM - } -#endif - - for (p = wrapper; *p; p++) - if (*p == '/') - { - has_slash = 1; - break; - } - if (!has_slash) - { - /* no slashes; search PATH */ - const char *path = getenv ("PATH"); - if (path != NULL) - { - for (p = path; *p; p = p_next) - { - const char *q; - size_t p_len; - for (q = p; *q; q++) - if (IS_PATH_SEPARATOR (*q)) - break; - p_len = (size_t) (q - p); - p_next = (*q == '\0' ? q : q + 1); - if (p_len == 0) - { - /* empty path: current directory */ - if (getcwd (tmp, LT_PATHMAX) == NULL) - lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", - nonnull (strerror (errno))); - tmp_len = strlen (tmp); - concat_name = - XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); - memcpy (concat_name, tmp, tmp_len); - concat_name[tmp_len] = '/'; - strcpy (concat_name + tmp_len + 1, wrapper); - } - else - { - concat_name = - XMALLOC (char, p_len + 1 + strlen (wrapper) + 1); - memcpy (concat_name, p, p_len); - concat_name[p_len] = '/'; - strcpy (concat_name + p_len + 1, wrapper); - } - if (check_executable (concat_name)) - return concat_name; - XFREE (concat_name); - } - } - /* not found in PATH; assume curdir */ - } - /* Relative path | not found in path: prepend cwd */ - if (getcwd (tmp, LT_PATHMAX) == NULL) - lt_fatal (__FILE__, __LINE__, "getcwd failed: %s", - nonnull (strerror (errno))); - tmp_len = strlen (tmp); - concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1); - memcpy (concat_name, tmp, tmp_len); - concat_name[tmp_len] = '/'; - strcpy (concat_name + tmp_len + 1, wrapper); - - if (check_executable (concat_name)) - return concat_name; - XFREE (concat_name); - return NULL; -} - -char * -chase_symlinks (const char *pathspec) -{ -#ifndef S_ISLNK - return xstrdup (pathspec); -#else - char buf[LT_PATHMAX]; - struct stat s; - char *tmp_pathspec = xstrdup (pathspec); - char *p; - int has_symlinks = 0; - while (strlen (tmp_pathspec) && !has_symlinks) - { - lt_debugprintf (__FILE__, __LINE__, - "checking path component for symlinks: %s\n", - tmp_pathspec); - if (lstat (tmp_pathspec, &s) == 0) - { - if (S_ISLNK (s.st_mode) != 0) - { - has_symlinks = 1; - break; - } - - /* search backwards for last DIR_SEPARATOR */ - p = tmp_pathspec + strlen (tmp_pathspec) - 1; - while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) - p--; - if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p))) - { - /* no more DIR_SEPARATORS left */ - break; - } - *p = '\0'; - } - else - { - lt_fatal (__FILE__, __LINE__, - "error accessing file \"%s\": %s", - tmp_pathspec, nonnull (strerror (errno))); - } - } - XFREE (tmp_pathspec); - - if (!has_symlinks) - { - return xstrdup (pathspec); - } - - tmp_pathspec = realpath (pathspec, buf); - if (tmp_pathspec == 0) - { - lt_fatal (__FILE__, __LINE__, - "could not follow symlinks for %s", pathspec); - } - return xstrdup (tmp_pathspec); -#endif -} - -char * -strendzap (char *str, const char *pat) -{ - size_t len, patlen; - - assert (str != NULL); - assert (pat != NULL); - - len = strlen (str); - patlen = strlen (pat); - - if (patlen <= len) - { - str += len - patlen; - if (STREQ (str, pat)) - *str = '\0'; - } - return str; -} - -void -lt_debugprintf (const char *file, int line, const char *fmt, ...) -{ - va_list args; - if (lt_debug) - { - (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line); - va_start (args, fmt); - (void) vfprintf (stderr, fmt, args); - va_end (args); - } -} - -static void -lt_error_core (int exit_status, const char *file, - int line, const char *mode, - const char *message, va_list ap) -{ - fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode); - vfprintf (stderr, message, ap); - fprintf (stderr, ".\n"); - - if (exit_status >= 0) - exit (exit_status); -} - -void -lt_fatal (const char *file, int line, const char *message, ...) -{ - va_list ap; - va_start (ap, message); - lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap); - va_end (ap); -} - -static const char * -nonnull (const char *s) -{ - return s ? s : "(null)"; -} - -static const char * -nonempty (const char *s) -{ - return (s && !*s) ? "(empty)" : nonnull (s); -} - -void -lt_setenv (const char *name, const char *value) -{ - lt_debugprintf (__FILE__, __LINE__, - "(lt_setenv) setting '%s' to '%s'\n", - nonnull (name), nonnull (value)); - { -#ifdef HAVE_SETENV - /* always make a copy, for consistency with !HAVE_SETENV */ - char *str = xstrdup (value); - setenv (name, str, 1); -#else - size_t len = strlen (name) + 1 + strlen (value) + 1; - char *str = XMALLOC (char, len); - sprintf (str, "%s=%s", name, value); - if (putenv (str) != EXIT_SUCCESS) - { - XFREE (str); - } -#endif - } -} - -char * -lt_extend_str (const char *orig_value, const char *add, int to_end) -{ - char *new_value; - if (orig_value && *orig_value) - { - size_t orig_value_len = strlen (orig_value); - size_t add_len = strlen (add); - new_value = XMALLOC (char, add_len + orig_value_len + 1); - if (to_end) - { - strcpy (new_value, orig_value); - strcpy (new_value + orig_value_len, add); - } - else - { - strcpy (new_value, add); - strcpy (new_value + add_len, orig_value); - } - } - else - { - new_value = xstrdup (add); - } - return new_value; -} - -void -lt_update_exe_path (const char *name, const char *value) -{ - lt_debugprintf (__FILE__, __LINE__, - "(lt_update_exe_path) modifying '%s' by prepending '%s'\n", - nonnull (name), nonnull (value)); - - if (name && *name && value && *value) - { - char *new_value = lt_extend_str (getenv (name), value, 0); - /* some systems can't cope with a ':'-terminated path #' */ - size_t len = strlen (new_value); - while ((len > 0) && IS_PATH_SEPARATOR (new_value[len-1])) - { - new_value[--len] = '\0'; - } - lt_setenv (name, new_value); - XFREE (new_value); - } -} - -void -lt_update_lib_path (const char *name, const char *value) -{ - lt_debugprintf (__FILE__, __LINE__, - "(lt_update_lib_path) modifying '%s' by prepending '%s'\n", - nonnull (name), nonnull (value)); - - if (name && *name && value && *value) - { - char *new_value = lt_extend_str (getenv (name), value, 0); - lt_setenv (name, new_value); - XFREE (new_value); - } -} - -EOF - case $host_os in - mingw*) - cat <<"EOF" - -/* Prepares an argument vector before calling spawn(). - Note that spawn() does not by itself call the command interpreter - (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") : - ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); - GetVersionEx(&v); - v.dwPlatformId == VER_PLATFORM_WIN32_NT; - }) ? "cmd.exe" : "command.com"). - Instead it simply concatenates the arguments, separated by ' ', and calls - CreateProcess(). We must quote the arguments since Win32 CreateProcess() - interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a - special way: - - Space and tab are interpreted as delimiters. They are not treated as - delimiters if they are surrounded by double quotes: "...". - - Unescaped double quotes are removed from the input. Their only effect is - that within double quotes, space and tab are treated like normal - characters. - - Backslashes not followed by double quotes are not special. - - But 2*n+1 backslashes followed by a double quote become - n backslashes followed by a double quote (n >= 0): - \" -> " - \\\" -> \" - \\\\\" -> \\" - */ -#define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" -#define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" -char ** -prepare_spawn (char **argv) -{ - size_t argc; - char **new_argv; - size_t i; - - /* Count number of arguments. */ - for (argc = 0; argv[argc] != NULL; argc++) - ; - - /* Allocate new argument vector. */ - new_argv = XMALLOC (char *, argc + 1); - - /* Put quoted arguments into the new argument vector. */ - for (i = 0; i < argc; i++) - { - const char *string = argv[i]; - - if (string[0] == '\0') - new_argv[i] = xstrdup ("\"\""); - else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL) - { - int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL); - size_t length; - unsigned int backslashes; - const char *s; - char *quoted_string; - char *p; - - length = 0; - backslashes = 0; - if (quote_around) - length++; - for (s = string; *s != '\0'; s++) - { - char c = *s; - if (c == '"') - length += backslashes + 1; - length++; - if (c == '\\') - backslashes++; - else - backslashes = 0; - } - if (quote_around) - length += backslashes + 1; - - quoted_string = XMALLOC (char, length + 1); - - p = quoted_string; - backslashes = 0; - if (quote_around) - *p++ = '"'; - for (s = string; *s != '\0'; s++) - { - char c = *s; - if (c == '"') - { - unsigned int j; - for (j = backslashes + 1; j > 0; j--) - *p++ = '\\'; - } - *p++ = c; - if (c == '\\') - backslashes++; - else - backslashes = 0; - } - if (quote_around) - { - unsigned int j; - for (j = backslashes; j > 0; j--) - *p++ = '\\'; - *p++ = '"'; - } - *p = '\0'; - - new_argv[i] = quoted_string; - } - else - new_argv[i] = (char *) string; - } - new_argv[argc] = NULL; - - return new_argv; -} -EOF - ;; - esac - - cat <<"EOF" -void lt_dump_script (FILE* f) -{ -EOF - func_emit_wrapper yes | - $SED -n -e ' -s/^\(.\{79\}\)\(..*\)/\1\ -\2/ -h -s/\([\\"]\)/\\\1/g -s/$/\\n/ -s/\([^\n]*\).*/ fputs ("\1", f);/p -g -D' - cat <<"EOF" -} -EOF -} -# end: func_emit_cwrapperexe_src - -# func_win32_import_lib_p ARG -# True if ARG is an import lib, as indicated by $file_magic_cmd -func_win32_import_lib_p () -{ - $debug_cmd - - case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in - *import*) : ;; - *) false ;; - esac -} - -# func_suncc_cstd_abi -# !!ONLY CALL THIS FOR SUN CC AFTER $compile_command IS FULLY EXPANDED!! -# Several compiler flags select an ABI that is incompatible with the -# Cstd library. Avoid specifying it if any are in CXXFLAGS. -func_suncc_cstd_abi () -{ - $debug_cmd - - case " $compile_command " in - *" -compat=g "*|*\ -std=c++[0-9][0-9]\ *|*" -library=stdcxx4 "*|*" -library=stlport4 "*) - suncc_use_cstd_abi=no - ;; - *) - suncc_use_cstd_abi=yes - ;; - esac -} - -# func_mode_link arg... -func_mode_link () -{ - $debug_cmd - - case $host in - *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*) - # It is impossible to link a dll without this setting, and - # we shouldn't force the makefile maintainer to figure out - # what system we are compiling for in order to pass an extra - # flag for every libtool invocation. - # allow_undefined=no - - # FIXME: Unfortunately, there are problems with the above when trying - # to make a dll that has undefined symbols, in which case not - # even a static library is built. For now, we need to specify - # -no-undefined on the libtool link line when we can be certain - # that all symbols are satisfied, otherwise we get a static library. - allow_undefined=yes - ;; - *) - allow_undefined=yes - ;; - esac - libtool_args=$nonopt - base_compile="$nonopt $@" - compile_command=$nonopt - finalize_command=$nonopt - - compile_rpath= - finalize_rpath= - compile_shlibpath= - finalize_shlibpath= - convenience= - old_convenience= - deplibs= - old_deplibs= - compiler_flags= - linker_flags= - dllsearchpath= - lib_search_path=`pwd` - inst_prefix_dir= - new_inherited_linker_flags= - - avoid_version=no - bindir= - dlfiles= - dlprefiles= - dlself=no - export_dynamic=no - export_symbols= - export_symbols_regex= - generated= - libobjs= - ltlibs= - module=no - no_install=no - objs= - os2dllname= - non_pic_objects= - precious_files_regex= - prefer_static_libs=no - preload=false - prev= - prevarg= - release= - rpath= - xrpath= - perm_rpath= - temp_rpath= - thread_safe=no - vinfo= - vinfo_number=no - weak_libs= - single_module=$wl-single_module - func_infer_tag $base_compile - - # We need to know -static, to get the right output filenames. - for arg - do - case $arg in - -shared) - test yes != "$build_libtool_libs" \ - && func_fatal_configuration "cannot build a shared library" - build_old_libs=no - break - ;; - -all-static | -static | -static-libtool-libs) - case $arg in - -all-static) - if test yes = "$build_libtool_libs" && test -z "$link_static_flag"; then - func_warning "complete static linking is impossible in this configuration" - fi - if test -n "$link_static_flag"; then - dlopen_self=$dlopen_self_static - fi - prefer_static_libs=yes - ;; - -static) - if test -z "$pic_flag" && test -n "$link_static_flag"; then - dlopen_self=$dlopen_self_static - fi - prefer_static_libs=built - ;; - -static-libtool-libs) - if test -z "$pic_flag" && test -n "$link_static_flag"; then - dlopen_self=$dlopen_self_static - fi - prefer_static_libs=yes - ;; - esac - build_libtool_libs=no - build_old_libs=yes - break - ;; - esac - done - - # See if our shared archives depend on static archives. - test -n "$old_archive_from_new_cmds" && build_old_libs=yes - - # Go through the arguments, transforming them on the way. - while test "$#" -gt 0; do - arg=$1 - shift - func_quote_for_eval "$arg" - qarg=$func_quote_for_eval_unquoted_result - func_append libtool_args " $func_quote_for_eval_result" - - # If the previous option needs an argument, assign it. - if test -n "$prev"; then - case $prev in - output) - func_append compile_command " @OUTPUT@" - func_append finalize_command " @OUTPUT@" - ;; - esac - - case $prev in - bindir) - bindir=$arg - prev= - continue - ;; - dlfiles|dlprefiles) - $preload || { - # Add the symbol object into the linking commands. - func_append compile_command " @SYMFILE@" - func_append finalize_command " @SYMFILE@" - preload=: - } - case $arg in - *.la | *.lo) ;; # We handle these cases below. - force) - if test no = "$dlself"; then - dlself=needless - export_dynamic=yes - fi - prev= - continue - ;; - self) - if test dlprefiles = "$prev"; then - dlself=yes - elif test dlfiles = "$prev" && test yes != "$dlopen_self"; then - dlself=yes - else - dlself=needless - export_dynamic=yes - fi - prev= - continue - ;; - *) - if test dlfiles = "$prev"; then - func_append dlfiles " $arg" - else - func_append dlprefiles " $arg" - fi - prev= - continue - ;; - esac - ;; - expsyms) - export_symbols=$arg - test -f "$arg" \ - || func_fatal_error "symbol file '$arg' does not exist" - prev= - continue - ;; - expsyms_regex) - export_symbols_regex=$arg - prev= - continue - ;; - framework) - case $host in - *-*-darwin*) - case "$deplibs " in - *" $qarg.ltframework "*) ;; - *) func_append deplibs " $qarg.ltframework" # this is fixed later - ;; - esac - ;; - esac - prev= - continue - ;; - inst_prefix) - inst_prefix_dir=$arg - prev= - continue - ;; - mllvm) - # Clang does not use LLVM to link, so we can simply discard any - # '-mllvm $arg' options when doing the link step. - prev= - continue - ;; - objectlist) - if test -f "$arg"; then - save_arg=$arg - moreargs= - for fil in `cat "$save_arg"` - do -# func_append moreargs " $fil" - arg=$fil - # A libtool-controlled object. - - # Check to see that this really is a libtool object. - if func_lalib_unsafe_p "$arg"; then - pic_object= - non_pic_object= - - # Read the .lo file - func_source "$arg" - - if test -z "$pic_object" || - test -z "$non_pic_object" || - test none = "$pic_object" && - test none = "$non_pic_object"; then - func_fatal_error "cannot find name of object for '$arg'" - fi - - # Extract subdirectory from the argument. - func_dirname "$arg" "/" "" - xdir=$func_dirname_result - - if test none != "$pic_object"; then - # Prepend the subdirectory the object is found in. - pic_object=$xdir$pic_object - - if test dlfiles = "$prev"; then - if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then - func_append dlfiles " $pic_object" - prev= - continue - else - # If libtool objects are unsupported, then we need to preload. - prev=dlprefiles - fi - fi - - # CHECK ME: I think I busted this. -Ossama - if test dlprefiles = "$prev"; then - # Preload the old-style object. - func_append dlprefiles " $pic_object" - prev= - fi - - # A PIC object. - func_append libobjs " $pic_object" - arg=$pic_object - fi - - # Non-PIC object. - if test none != "$non_pic_object"; then - # Prepend the subdirectory the object is found in. - non_pic_object=$xdir$non_pic_object - - # A standard non-PIC object - func_append non_pic_objects " $non_pic_object" - if test -z "$pic_object" || test none = "$pic_object"; then - arg=$non_pic_object - fi - else - # If the PIC object exists, use it instead. - # $xdir was prepended to $pic_object above. - non_pic_object=$pic_object - func_append non_pic_objects " $non_pic_object" - fi - else - # Only an error if not doing a dry-run. - if $opt_dry_run; 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then - case "$new_inherited_linker_flags " in - *" $deplib "*) ;; - * ) func_append new_inherited_linker_flags " $deplib" ;; - esac - fi - fi - continue - ;; - -l*) - if test lib != "$linkmode" && test prog != "$linkmode"; then - func_warning "'-l' is ignored for archives/objects" - continue - fi - func_stripname '-l' '' "$deplib" - name=$func_stripname_result - if test lib = "$linkmode"; then - searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path" - else - searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path" - fi - for searchdir in $searchdirs; do - for search_ext in .la $std_shrext .so .a; do - # Search the libtool library - lib=$searchdir/lib$name$search_ext - if test -f "$lib"; then - if test .la = "$search_ext"; then - found=: - else - found=false - fi - break 2 - fi - done - done - if $found; then - # deplib is a libtool library - # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib, - # We need to do some special things here, and not later. - if test yes = "$allow_libtool_libs_with_static_runtimes"; then - case " $predeps $postdeps " in - *" $deplib "*) - if func_lalib_p "$lib"; then - library_names= - old_library= - func_source "$lib" - for l in $old_library $library_names; do - ll=$l - done - if test "X$ll" = "X$old_library"; then # only static version available - found=false - func_dirname "$lib" "" "." - ladir=$func_dirname_result - lib=$ladir/$old_library - if test prog,link = "$linkmode,$pass"; then - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - else - deplibs="$deplib $deplibs" - test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs" - fi - continue - fi - fi - ;; - *) ;; - esac - fi - else - # deplib doesn't seem to be a libtool library - if test prog,link = "$linkmode,$pass"; then - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - else - deplibs="$deplib $deplibs" - test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs" - fi - continue - fi - ;; # -l - *.ltframework) - if test prog,link = "$linkmode,$pass"; then - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - else - deplibs="$deplib $deplibs" - if test lib = "$linkmode"; then - case "$new_inherited_linker_flags " in - *" $deplib "*) ;; - * ) func_append new_inherited_linker_flags " $deplib" ;; - esac - fi - fi - continue - ;; - -L*) - case $linkmode in - lib) - deplibs="$deplib $deplibs" - test conv = "$pass" && continue - newdependency_libs="$deplib $newdependency_libs" - func_stripname '-L' '' "$deplib" - func_resolve_sysroot "$func_stripname_result" - func_append newlib_search_path " $func_resolve_sysroot_result" - ;; - prog) - if test conv = "$pass"; then - deplibs="$deplib $deplibs" - continue - fi - if test scan = "$pass"; then - deplibs="$deplib $deplibs" - else - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - fi - func_stripname '-L' '' "$deplib" - func_resolve_sysroot "$func_stripname_result" - func_append newlib_search_path " $func_resolve_sysroot_result" - ;; - *) - func_warning "'-L' is ignored for archives/objects" - ;; - esac # linkmode - continue - ;; # -L - -R*) - if test link = "$pass"; then - func_stripname '-R' '' "$deplib" - func_resolve_sysroot "$func_stripname_result" - dir=$func_resolve_sysroot_result - # Make sure the xrpath contains only unique directories. - case "$xrpath " in - *" $dir "*) ;; - *) func_append xrpath " $dir" ;; - esac - fi - deplibs="$deplib $deplibs" - continue - ;; - *.la) - func_resolve_sysroot "$deplib" - lib=$func_resolve_sysroot_result - ;; - *.$libext) - if test conv = "$pass"; then - deplibs="$deplib $deplibs" - continue - fi - case $linkmode in - lib) - # Linking convenience modules into shared libraries is allowed, - # but linking other static libraries is non-portable. - case " $dlpreconveniencelibs " in - *" $deplib "*) ;; - *) - valid_a_lib=false - case $deplibs_check_method in - match_pattern*) - set dummy $deplibs_check_method; shift - match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"` - if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \ - | $EGREP "$match_pattern_regex" > /dev/null; then - valid_a_lib=: - fi - ;; - pass_all) - valid_a_lib=: - ;; - esac - if $valid_a_lib; then - echo - $ECHO "*** Warning: Linking the shared library $output against the" - $ECHO "*** static library $deplib is not portable!" - deplibs="$deplib $deplibs" - else - echo - $ECHO "*** Warning: Trying to link with static lib archive $deplib." - echo "*** I have the capability to make that library automatically link in when" - echo "*** you link to this library. But I can only do this if you have a" - echo "*** shared version of the library, which you do not appear to have" - echo "*** because the file extensions .$libext of this argument makes me believe" - echo "*** that it is just a static archive that I should not use here." - fi - ;; - esac - continue - ;; - prog) - if test link != "$pass"; then - deplibs="$deplib $deplibs" - else - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - fi - continue - ;; - esac # linkmode - ;; # *.$libext - *.lo | *.$objext) - if test conv = "$pass"; then - deplibs="$deplib $deplibs" - elif test prog = "$linkmode"; then - if test dlpreopen = "$pass" || test yes != "$dlopen_support" || test no = "$build_libtool_libs"; then - # If there is no dlopen support or we're linking statically, - # we need to preload. - func_append newdlprefiles " $deplib" - compile_deplibs="$deplib $compile_deplibs" - finalize_deplibs="$deplib $finalize_deplibs" - else - func_append newdlfiles " $deplib" - fi - fi - continue - ;; - %DEPLIBS%) - alldeplibs=: - continue - ;; - esac # case $deplib - - $found || test -f "$lib" \ - || func_fatal_error "cannot find the library '$lib' or unhandled argument '$deplib'" - - # Check to see that this really is a libtool archive. - func_lalib_unsafe_p "$lib" \ - || func_fatal_error "'$lib' is not a valid libtool archive" - - func_dirname "$lib" "" "." - ladir=$func_dirname_result - - dlname= - dlopen= - dlpreopen= - libdir= - library_names= - old_library= - inherited_linker_flags= - # If the library was installed with an old release of libtool, - # it will not redefine variables installed, or shouldnotlink - installed=yes - shouldnotlink=no - avoidtemprpath= - - - # Read the .la file - func_source "$lib" - - # Convert "-framework foo" to "foo.ltframework" - if test -n "$inherited_linker_flags"; then - tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'` - for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do - case " $new_inherited_linker_flags " in - *" $tmp_inherited_linker_flag "*) ;; - *) func_append new_inherited_linker_flags " $tmp_inherited_linker_flag";; - esac - done - fi - dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - if test lib,link = "$linkmode,$pass" || - test prog,scan = "$linkmode,$pass" || - { test prog != "$linkmode" && test lib != "$linkmode"; }; then - test -n "$dlopen" && func_append dlfiles " $dlopen" - test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen" - fi - - if test conv = "$pass"; then - # Only check for convenience libraries - deplibs="$lib $deplibs" - if test -z "$libdir"; then - if test -z "$old_library"; then - func_fatal_error "cannot find name of link library for '$lib'" - fi - # It is a libtool convenience library, so add in its objects. - func_append convenience " $ladir/$objdir/$old_library" - func_append old_convenience " $ladir/$objdir/$old_library" - elif test prog != "$linkmode" && test lib != "$linkmode"; then - func_fatal_error "'$lib' is not a convenience library" - fi - tmp_libs= - for deplib in $dependency_libs; do - deplibs="$deplib $deplibs" - if $opt_preserve_dup_deps; then - case "$tmp_libs " in - *" $deplib "*) func_append specialdeplibs " $deplib" ;; - esac - fi - func_append tmp_libs " $deplib" - done - continue - fi # $pass = conv - - - # Get the name of the library we link against. - linklib= - if test -n "$old_library" && - { test yes = "$prefer_static_libs" || - test built,no = "$prefer_static_libs,$installed"; }; then - linklib=$old_library - else - for l in $old_library $library_names; do - linklib=$l - done - fi - if test -z "$linklib"; then - func_fatal_error "cannot find name of link library for '$lib'" - fi - - # This library was specified with -dlopen. - if test dlopen = "$pass"; then - test -z "$libdir" \ - && func_fatal_error "cannot -dlopen a convenience library: '$lib'" - if test -z "$dlname" || - test yes != "$dlopen_support" || - test no = "$build_libtool_libs" - then - # If there is no dlname, no dlopen support or we're linking - # statically, we need to preload. We also need to preload any - # dependent libraries so libltdl's deplib preloader doesn't - # bomb out in the load deplibs phase. - func_append dlprefiles " $lib $dependency_libs" - else - func_append newdlfiles " $lib" - fi - continue - fi # $pass = dlopen - - # We need an absolute path. - case $ladir in - [\\/]* | [A-Za-z]:[\\/]*) abs_ladir=$ladir ;; - *) - abs_ladir=`cd "$ladir" && pwd` - if test -z "$abs_ladir"; then - func_warning "cannot determine absolute directory name of '$ladir'" - func_warning "passing it literally to the linker, although it might fail" - abs_ladir=$ladir - fi - ;; - esac - func_basename "$lib" - laname=$func_basename_result - - # Find the relevant object directory and library name. - if test yes = "$installed"; then - if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then - func_warning "library '$lib' was moved." - dir=$ladir - absdir=$abs_ladir - libdir=$abs_ladir - else - dir=$lt_sysroot$libdir - absdir=$lt_sysroot$libdir - fi - test yes = "$hardcode_automatic" && avoidtemprpath=yes - else - if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then - dir=$ladir - absdir=$abs_ladir - # Remove this search path later - func_append notinst_path " $abs_ladir" - else - dir=$ladir/$objdir - absdir=$abs_ladir/$objdir - # Remove this search path later - func_append notinst_path " $abs_ladir" - fi - fi # $installed = yes - func_stripname 'lib' '.la' "$laname" - name=$func_stripname_result - - # This library was specified with -dlpreopen. - if test dlpreopen = "$pass"; then - if test -z "$libdir" && test prog = "$linkmode"; then - func_fatal_error "only libraries may -dlpreopen a convenience library: '$lib'" - fi - case $host in - # special handling for platforms with PE-DLLs. - *cygwin* | *mingw* | *cegcc* ) - # Linker will automatically link against shared library if both - # static and shared are present. Therefore, ensure we extract - # symbols from the import library if a shared library is present - # (otherwise, the dlopen module name will be incorrect). We do - # this by putting the import library name into $newdlprefiles. - # We recover the dlopen module name by 'saving' the la file - # name in a special purpose variable, and (later) extracting the - # dlname from the la file. - if test -n "$dlname"; then - func_tr_sh "$dir/$linklib" - eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname" - func_append newdlprefiles " $dir/$linklib" - else - func_append newdlprefiles " $dir/$old_library" - # Keep a list of preopened convenience libraries to check - # that they are being used correctly in the link pass. - test -z "$libdir" && \ - func_append dlpreconveniencelibs " $dir/$old_library" - fi - ;; - * ) - # Prefer using a static library (so that no silly _DYNAMIC symbols - # are required to link). - if test -n "$old_library"; then - func_append newdlprefiles " $dir/$old_library" - # Keep a list of preopened convenience libraries to check - # that they are being used correctly in the link pass. - test -z "$libdir" && \ - func_append dlpreconveniencelibs " $dir/$old_library" - # Otherwise, use the dlname, so that lt_dlopen finds it. - elif test -n "$dlname"; then - func_append newdlprefiles " $dir/$dlname" - else - func_append newdlprefiles " $dir/$linklib" - fi - ;; - esac - fi # $pass = dlpreopen - - if test -z "$libdir"; then - # Link the convenience library - if test lib = "$linkmode"; then - deplibs="$dir/$old_library $deplibs" - elif test prog,link = "$linkmode,$pass"; then - compile_deplibs="$dir/$old_library $compile_deplibs" - finalize_deplibs="$dir/$old_library $finalize_deplibs" - else - deplibs="$lib $deplibs" # used for prog,scan pass - fi - continue - fi - - - if test prog = "$linkmode" && test link != "$pass"; then - func_append newlib_search_path " $ladir" - deplibs="$lib $deplibs" - - linkalldeplibs=false - if test no != "$link_all_deplibs" || test -z "$library_names" || - test no = "$build_libtool_libs"; then - linkalldeplibs=: - fi - - tmp_libs= - for deplib in $dependency_libs; do - case $deplib in - -L*) func_stripname '-L' '' "$deplib" - func_resolve_sysroot "$func_stripname_result" - func_append newlib_search_path " $func_resolve_sysroot_result" - ;; - esac - # Need to link against all dependency_libs? - if $linkalldeplibs; then - deplibs="$deplib $deplibs" - else - # Need to hardcode shared library paths - # or/and link against static libraries - newdependency_libs="$deplib $newdependency_libs" - fi - if $opt_preserve_dup_deps; then - case "$tmp_libs " in - *" $deplib "*) func_append specialdeplibs " $deplib" ;; - esac - fi - func_append tmp_libs " $deplib" - done # for deplib - continue - fi # $linkmode = prog... - - if test prog,link = "$linkmode,$pass"; then - if test -n "$library_names" && - { { test no = "$prefer_static_libs" || - test built,yes = "$prefer_static_libs,$installed"; } || - test -z "$old_library"; }; then - # We need to hardcode the library path - if test -n "$shlibpath_var" && test -z "$avoidtemprpath"; then - # Make sure the rpath contains only unique directories. - case $temp_rpath: in - *"$absdir:"*) ;; - *) func_append temp_rpath "$absdir:" ;; - esac - fi - - # Hardcode the library path. - # Skip directories that are in the system default run-time - # search path. - case " $sys_lib_dlsearch_path " in - *" $absdir "*) ;; - *) - case "$compile_rpath " in - *" $absdir "*) ;; - *) func_append compile_rpath " $absdir" ;; - esac - ;; - esac - case " $sys_lib_dlsearch_path " in - *" $libdir "*) ;; - *) - case "$finalize_rpath " in - *" $libdir "*) ;; - *) func_append finalize_rpath " $libdir" ;; - esac - ;; - esac - fi # $linkmode,$pass = prog,link... - - if $alldeplibs && - { test pass_all = "$deplibs_check_method" || - { test yes = "$build_libtool_libs" && - test -n "$library_names"; }; }; then - # We only need to search for static libraries - continue - fi - fi - - link_static=no # Whether the deplib will be linked statically - use_static_libs=$prefer_static_libs - if test built = "$use_static_libs" && test yes = "$installed"; then - use_static_libs=no - fi - if test -n "$library_names" && - { test no = "$use_static_libs" || test -z "$old_library"; }; then - case $host in - *cygwin* | *mingw* | *cegcc* | *os2*) - # No point in relinking DLLs because paths are not encoded - func_append notinst_deplibs " $lib" - need_relink=no - ;; - *) - if test no = "$installed"; then - func_append notinst_deplibs " $lib" - need_relink=yes - fi - ;; - esac - # This is a shared library - - # Warn about portability, can't link against -module's on some - # systems (darwin). Don't bleat about dlopened modules though! - dlopenmodule= - for dlpremoduletest in $dlprefiles; do - if test "X$dlpremoduletest" = "X$lib"; then - dlopenmodule=$dlpremoduletest - break - fi - done - if test -z "$dlopenmodule" && test yes = "$shouldnotlink" && test link = "$pass"; then - echo - if test prog = "$linkmode"; then - $ECHO "*** Warning: Linking the executable $output against the loadable module" - else - $ECHO "*** Warning: Linking the shared library $output against the loadable module" - fi - $ECHO "*** $linklib is not portable!" - fi - if test lib = "$linkmode" && - test yes = "$hardcode_into_libs"; then - # Hardcode the library path. - # Skip directories that are in the system default run-time - # search path. - case " $sys_lib_dlsearch_path " in - *" $absdir "*) ;; - *) - case "$compile_rpath " in - *" $absdir "*) ;; - *) func_append compile_rpath " $absdir" ;; - esac - ;; - esac - case " $sys_lib_dlsearch_path " in - *" $libdir "*) ;; - *) - case "$finalize_rpath " in - *" $libdir "*) ;; - *) func_append finalize_rpath " $libdir" ;; - esac - ;; - esac - fi - - if test -n "$old_archive_from_expsyms_cmds"; then - # figure out the soname - set dummy $library_names - shift - realname=$1 - shift - libname=`eval "\\$ECHO \"$libname_spec\""` - # use dlname if we got it. it's perfectly good, no? - if test -n "$dlname"; then - soname=$dlname - elif test -n "$soname_spec"; then - # bleh windows - case $host in - *cygwin* | mingw* | *cegcc* | *os2*) - func_arith $current - $age - major=$func_arith_result - versuffix=-$major - ;; - esac - eval soname=\"$soname_spec\" - else - soname=$realname - fi - - # Make a new name for the extract_expsyms_cmds to use - soroot=$soname - func_basename "$soroot" - soname=$func_basename_result - func_stripname 'lib' '.dll' "$soname" - newlib=libimp-$func_stripname_result.a - - # If the library has no export list, then create one now - if test -f "$output_objdir/$soname-def"; then : - else - func_verbose "extracting exported symbol list from '$soname'" - func_execute_cmds "$extract_expsyms_cmds" 'exit $?' - fi - - # Create $newlib - if test -f "$output_objdir/$newlib"; then :; else - func_verbose "generating import library for '$soname'" - func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?' - fi - # make sure the library variables are pointing to the new library - dir=$output_objdir - linklib=$newlib - fi # test -n "$old_archive_from_expsyms_cmds" - - if test prog = "$linkmode" || test relink != "$opt_mode"; then - add_shlibpath= - add_dir= - add= - lib_linked=yes - case $hardcode_action in - immediate | unsupported) - if test no = "$hardcode_direct"; then - add=$dir/$linklib - case $host in - *-*-sco3.2v5.0.[024]*) add_dir=-L$dir ;; - *-*-sysv4*uw2*) add_dir=-L$dir ;; - *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \ - *-*-unixware7*) add_dir=-L$dir ;; - *-*-darwin* ) - # if the lib is a (non-dlopened) module then we cannot - # link against it, someone is ignoring the earlier warnings - if /usr/bin/file -L $add 2> /dev/null | - $GREP ": [^:]* bundle" >/dev/null; then - if test "X$dlopenmodule" != "X$lib"; then - $ECHO "*** Warning: lib $linklib is a module, not a shared library" - if test -z "$old_library"; then - echo - echo "*** And there doesn't seem to be a static archive available" - echo "*** The link will probably fail, sorry" - else - add=$dir/$old_library - fi - elif test -n "$old_library"; then - add=$dir/$old_library - fi - fi - esac - elif test no = "$hardcode_minus_L"; then - case $host in - *-*-sunos*) add_shlibpath=$dir ;; - esac - add_dir=-L$dir - add=-l$name - elif test no = "$hardcode_shlibpath_var"; then - add_shlibpath=$dir - add=-l$name - else - lib_linked=no - fi - ;; - relink) - if test yes = "$hardcode_direct" && - test no = "$hardcode_direct_absolute"; then - add=$dir/$linklib - elif test yes = "$hardcode_minus_L"; then - add_dir=-L$absdir - # Try looking first in the location we're being installed to. - if test -n "$inst_prefix_dir"; then - case $libdir in - [\\/]*) - func_append add_dir " -L$inst_prefix_dir$libdir" - ;; - esac - fi - add=-l$name - elif test yes = "$hardcode_shlibpath_var"; then - add_shlibpath=$dir - add=-l$name - else - lib_linked=no - fi - ;; - *) lib_linked=no ;; - esac - - if test yes != "$lib_linked"; then - func_fatal_configuration "unsupported hardcode properties" - fi - - if test -n "$add_shlibpath"; then - case :$compile_shlibpath: in - *":$add_shlibpath:"*) ;; - *) func_append compile_shlibpath "$add_shlibpath:" ;; - esac - fi - if test prog = "$linkmode"; then - test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs" - test -n "$add" && compile_deplibs="$add $compile_deplibs" - else - test -n "$add_dir" && deplibs="$add_dir $deplibs" - test -n "$add" && deplibs="$add $deplibs" - if test yes != "$hardcode_direct" && - test yes != "$hardcode_minus_L" && - test yes = "$hardcode_shlibpath_var"; then - case :$finalize_shlibpath: in - *":$libdir:"*) ;; - *) func_append finalize_shlibpath "$libdir:" ;; - esac - fi - fi - fi - - if test prog = "$linkmode" || test relink = "$opt_mode"; then - add_shlibpath= - add_dir= - add= - # Finalize command for both is simple: just hardcode it. - if test yes = "$hardcode_direct" && - test no = "$hardcode_direct_absolute"; then - add=$libdir/$linklib - elif test yes = "$hardcode_minus_L"; then - add_dir=-L$libdir - add=-l$name - elif test yes = "$hardcode_shlibpath_var"; then - case :$finalize_shlibpath: in - *":$libdir:"*) ;; - *) func_append finalize_shlibpath "$libdir:" ;; - esac - add=-l$name - elif test yes = "$hardcode_automatic"; then - if test -n "$inst_prefix_dir" && - test -f "$inst_prefix_dir$libdir/$linklib"; then - add=$inst_prefix_dir$libdir/$linklib - else - add=$libdir/$linklib - fi - else - # We cannot seem to hardcode it, guess we'll fake it. - add_dir=-L$libdir - # Try looking first in the location we're being installed to. - if test -n "$inst_prefix_dir"; then - case $libdir in - [\\/]*) - func_append add_dir " -L$inst_prefix_dir$libdir" - ;; - esac - fi - add=-l$name - fi - - if test prog = "$linkmode"; then - test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs" - test -n "$add" && finalize_deplibs="$add $finalize_deplibs" - else - test -n "$add_dir" && deplibs="$add_dir $deplibs" - test -n "$add" && deplibs="$add $deplibs" - fi - fi - elif test prog = "$linkmode"; then - # Here we assume that one of hardcode_direct or hardcode_minus_L - # is not unsupported. This is valid on all known static and - # shared platforms. - if test unsupported != "$hardcode_direct"; then - test -n "$old_library" && linklib=$old_library - compile_deplibs="$dir/$linklib $compile_deplibs" - finalize_deplibs="$dir/$linklib $finalize_deplibs" - else - compile_deplibs="-l$name -L$dir $compile_deplibs" - finalize_deplibs="-l$name -L$dir $finalize_deplibs" - fi - elif test yes = "$build_libtool_libs"; then - # Not a shared library - if test pass_all != "$deplibs_check_method"; then - # We're trying link a shared library against a static one - # but the system doesn't support it. - - # Just print a warning and add the library to dependency_libs so - # that the program can be linked against the static library. - echo - $ECHO "*** Warning: This system cannot link to static lib archive $lib." - echo "*** I have the capability to make that library automatically link in when" - echo "*** you link to this library. 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So, this module is probably useless." - echo "*** 'nm' from GNU binutils and a full rebuild may help." - fi - if test no = "$build_old_libs"; then - build_libtool_libs=module - build_old_libs=yes - else - build_libtool_libs=no - fi - fi - else - deplibs="$dir/$old_library $deplibs" - link_static=yes - fi - fi # link shared/static library? - - if test lib = "$linkmode"; then - if test -n "$dependency_libs" && - { test yes != "$hardcode_into_libs" || - test yes = "$build_old_libs" || - test yes = "$link_static"; }; then - # Extract -R from dependency_libs - temp_deplibs= - for libdir in $dependency_libs; do - case $libdir in - -R*) func_stripname '-R' '' "$libdir" - temp_xrpath=$func_stripname_result - case " $xrpath " in - *" $temp_xrpath "*) ;; - *) func_append xrpath " $temp_xrpath";; - esac;; - *) func_append temp_deplibs " $libdir";; - esac - done - dependency_libs=$temp_deplibs - fi - - func_append newlib_search_path " $absdir" - # Link against this library - test no = "$link_static" && newdependency_libs="$abs_ladir/$laname $newdependency_libs" - # ... and its dependency_libs - tmp_libs= - for deplib in $dependency_libs; do - newdependency_libs="$deplib $newdependency_libs" - case $deplib in - -L*) func_stripname '-L' '' "$deplib" - func_resolve_sysroot "$func_stripname_result";; - *) func_resolve_sysroot "$deplib" ;; - esac - if $opt_preserve_dup_deps; then - case "$tmp_libs " in - *" $func_resolve_sysroot_result "*) - func_append specialdeplibs " $func_resolve_sysroot_result" ;; - esac - fi - func_append tmp_libs " $func_resolve_sysroot_result" - done - - if test no != "$link_all_deplibs"; then - # Add the search paths of all dependency libraries - for deplib in $dependency_libs; do - path= - case $deplib in - -L*) path=$deplib ;; - *.la) - func_resolve_sysroot "$deplib" - deplib=$func_resolve_sysroot_result - func_dirname "$deplib" "" "." - dir=$func_dirname_result - # We need an absolute path. - case $dir in - [\\/]* | [A-Za-z]:[\\/]*) absdir=$dir ;; - *) - absdir=`cd "$dir" && pwd` - if test -z "$absdir"; then - func_warning "cannot determine absolute directory name of '$dir'" - absdir=$dir - fi - ;; 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then - vars="compile_deplibs finalize_deplibs" - else - vars=deplibs - fi - for var in $vars dependency_libs; do - # Add libraries to $var in reverse order - eval tmp_libs=\"\$$var\" - new_libs= - for deplib in $tmp_libs; do - # FIXME: Pedantically, this is the right thing to do, so - # that some nasty dependency loop isn't accidentally - # broken: - #new_libs="$deplib $new_libs" - # Pragmatically, this seems to cause very few problems in - # practice: - case $deplib in - -L*) new_libs="$deplib $new_libs" ;; - -R*) ;; - *) - # And here is the reason: when a library appears more - # than once as an explicit dependence of a library, or - # is implicitly linked in more than once by the - # compiler, it is considered special, and multiple - # occurrences thereof are not removed. 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- *) - func_error "REVISION '$revision' must be a nonnegative integer" - func_fatal_error "'$vinfo' is not valid version information" - ;; - esac - - case $age in - 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;; - *) - func_error "AGE '$age' must be a nonnegative integer" - func_fatal_error "'$vinfo' is not valid version information" - ;; - esac - - if test "$age" -gt "$current"; then - func_error "AGE '$age' is greater than the current interface number '$current'" - func_fatal_error "'$vinfo' is not valid version information" - fi - - # Calculate the version variables. - major= - versuffix= - verstring= - case $version_type in - none) ;; - - darwin) - # Like Linux, but with the current version available in - # verstring for coding it into the library header - func_arith $current - $age - major=.$func_arith_result - versuffix=$major.$age.$revision - # Darwin ld doesn't like 0 for these options... - func_arith $current + 1 - minor_current=$func_arith_result - xlcverstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision" - verstring="-compatibility_version $minor_current -current_version $minor_current.$revision" - # On Darwin other compilers - case $CC in - nagfor*) - verstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision" - ;; 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then - major= - case $version_type in - darwin) - # we can't check for "0.0" in archive_cmds due to quoting - # problems, so we reset it completely - verstring= - ;; - *) - verstring=0.0 - ;; - esac - if test no = "$need_version"; then - versuffix= - else - versuffix=.0.0 - fi - fi - - # Remove version info from name if versioning should be avoided - if test yes,no = "$avoid_version,$need_version"; then - major= - versuffix= - verstring= - fi - - # Check to see if the archive will have undefined symbols. - if test yes = "$allow_undefined"; then - if test unsupported = "$allow_undefined_flag"; then - if test yes = "$build_old_libs"; then - func_warning "undefined symbols not allowed in $host shared libraries; building static only" - build_libtool_libs=no - else - func_fatal_error "can't build $host shared library unless -no-undefined is specified" - fi - fi - else - # Don't allow undefined symbols. - allow_undefined_flag=$no_undefined_flag - fi - - fi - - func_generate_dlsyms "$libname" "$libname" : - func_append libobjs " $symfileobj" - test " " = "$libobjs" && libobjs= - - if test relink != "$opt_mode"; then - # Remove our outputs, but don't remove object files since they - # may have been created when compiling PIC objects. - removelist= - tempremovelist=`$ECHO "$output_objdir/*"` - for p in $tempremovelist; do - case $p in - *.$objext | *.gcno) - ;; - $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/$libname$release.*) - if test -n "$precious_files_regex"; then - if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1 - then - continue - fi - fi - func_append removelist " $p" - ;; - *) ;; - esac - done - test -n "$removelist" && \ - func_show_eval "${RM}r \$removelist" - fi - - # Now set the variables for building old libraries. - if test yes = "$build_old_libs" && test convenience != "$build_libtool_libs"; then - func_append oldlibs " $output_objdir/$libname.$libext" - - # Transform .lo files to .o files. - oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; $lo2o" | $NL2SP` - fi - - # Eliminate all temporary directories. - #for path in $notinst_path; do - # lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"` - # deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"` - # dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"` - #done - - if test -n "$xrpath"; then - # If the user specified any rpath flags, then add them. - temp_xrpath= - for libdir in $xrpath; do - func_replace_sysroot "$libdir" - func_append temp_xrpath " -R$func_replace_sysroot_result" - case "$finalize_rpath " in - *" $libdir "*) ;; - *) func_append finalize_rpath " $libdir" ;; - esac - done - if test yes != "$hardcode_into_libs" || test yes = "$build_old_libs"; then - dependency_libs="$temp_xrpath $dependency_libs" - fi - fi - - # Make sure dlfiles contains only unique files that won't be dlpreopened - old_dlfiles=$dlfiles - dlfiles= - for lib in $old_dlfiles; do - case " $dlprefiles $dlfiles " in - *" $lib "*) ;; - *) func_append dlfiles " $lib" ;; - esac - done - - # Make sure dlprefiles contains only unique files - old_dlprefiles=$dlprefiles - dlprefiles= - for lib in $old_dlprefiles; do - case "$dlprefiles " in - *" $lib "*) ;; - *) func_append dlprefiles " $lib" ;; - esac - done - - if test yes = "$build_libtool_libs"; then - if test -n "$rpath"; then - case $host in - *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*) - # these systems don't actually have a c library (as such)! - ;; - *-*-rhapsody* | *-*-darwin1.[012]) - # Rhapsody C library is in the System framework - func_append deplibs " System.ltframework" - ;; - *-*-netbsd*) - # Don't link with libc until the a.out ld.so is fixed. - ;; - *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*) - # Do not include libc due to us having libc/libc_r. - ;; - *-*-sco3.2v5* | *-*-sco5v6*) - # Causes problems with __ctype - ;; - *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*) - # Compiler inserts libc in the correct place for threads to work - ;; - *) - # Add libc to deplibs on all other systems if necessary. - if test yes = "$build_libtool_need_lc"; then - func_append deplibs " -lc" - fi - ;; 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So, this module is probably useless." - echo "*** 'nm' from GNU binutils and a full rebuild may help." - fi - if test no = "$build_old_libs"; then - oldlibs=$output_objdir/$libname.$libext - build_libtool_libs=module - build_old_libs=yes - else - build_libtool_libs=no - fi - else - echo "*** The inter-library dependencies that have been dropped here will be" - echo "*** automatically added whenever a program is linked with this library" - echo "*** or is declared to -dlopen it." - - if test no = "$allow_undefined"; then - echo - echo "*** Since this library must not contain undefined symbols," - echo "*** because either the platform does not support them or" - echo "*** it was explicitly requested with -no-undefined," - echo "*** libtool will only create a static version of it." - if test no = "$build_old_libs"; then - oldlibs=$output_objdir/$libname.$libext - build_libtool_libs=module - build_old_libs=yes - else - build_libtool_libs=no - fi - fi - fi - fi - # Done checking deplibs! - deplibs=$newdeplibs - fi - # Time to change all our "foo.ltframework" stuff back to "-framework foo" - case $host in - *-*-darwin*) - newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'` - ;; 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do - if test -n "$hardcode_libdir_flag_spec"; then - if test -n "$hardcode_libdir_separator"; then - func_replace_sysroot "$libdir" - libdir=$func_replace_sysroot_result - if test -z "$hardcode_libdirs"; then - hardcode_libdirs=$libdir - else - # Just accumulate the unique libdirs. - case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in - *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) - ;; - *) - func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" - ;; - esac - fi - else - eval flag=\"$hardcode_libdir_flag_spec\" - func_append dep_rpath " $flag" - fi - elif test -n "$runpath_var"; then - case "$perm_rpath " in - *" $libdir "*) ;; - *) func_append perm_rpath " $libdir" ;; - esac - fi - done - # Substitute the hardcoded libdirs into the rpath. - if test -n "$hardcode_libdir_separator" && - test -n "$hardcode_libdirs"; then - libdir=$hardcode_libdirs - eval "dep_rpath=\"$hardcode_libdir_flag_spec\"" - fi - if test -n "$runpath_var" && test -n "$perm_rpath"; then - # We should set the runpath_var. - rpath= - for dir in $perm_rpath; do - func_append rpath "$dir:" - done - eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var" - fi - test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs" - fi - - shlibpath=$finalize_shlibpath - test relink = "$opt_mode" || shlibpath=$compile_shlibpath$shlibpath - if test -n "$shlibpath"; then - eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var" - fi - - # Get the real and link names of the library. - eval shared_ext=\"$shrext_cmds\" - eval library_names=\"$library_names_spec\" - set dummy $library_names - shift - realname=$1 - shift - - if test -n "$soname_spec"; then - eval soname=\"$soname_spec\" - else - soname=$realname - fi - if test -z "$dlname"; then - dlname=$soname - fi - - lib=$output_objdir/$realname - linknames= - for link - do - func_append linknames " $link" - done - - # Use standard objects if they are pic - test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP` - test "X$libobjs" = "X " && libobjs= - - delfiles= - if test -n "$export_symbols" && test -n "$include_expsyms"; then - $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp" - export_symbols=$output_objdir/$libname.uexp - func_append delfiles " $export_symbols" - fi - - orig_export_symbols= - case $host_os in - cygwin* | mingw* | cegcc*) - if test -n "$export_symbols" && test -z "$export_symbols_regex"; then - # exporting using user supplied symfile - func_dll_def_p "$export_symbols" || { - # and it's NOT already a .def file. 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GNU sed should be fine - # though. Also, the filter scales superlinearly with the number of - # global variables. join(1) would be nice here, but unfortunately - # isn't a blessed tool. - $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter - func_append delfiles " $export_symbols $output_objdir/$libname.filter" - export_symbols=$output_objdir/$libname.def - $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols - fi - - tmp_deplibs= - for test_deplib in $deplibs; do - case " $convenience " in - *" $test_deplib "*) ;; - *) - func_append tmp_deplibs " $test_deplib" - ;; - esac - done - deplibs=$tmp_deplibs - - if test -n "$convenience"; then - if test -n "$whole_archive_flag_spec" && - test yes = "$compiler_needs_object" && - test -z "$libobjs"; then - # extract the archives, so we have objects to list. - # TODO: could optimize this to just extract one archive. - whole_archive_flag_spec= - fi - if test -n "$whole_archive_flag_spec"; then - save_libobjs=$libobjs - eval libobjs=\"\$libobjs $whole_archive_flag_spec\" - test "X$libobjs" = "X " && libobjs= - else - gentop=$output_objdir/${outputname}x - func_append generated " $gentop" - - func_extract_archives $gentop $convenience - func_append libobjs " $func_extract_archives_result" - test "X$libobjs" = "X " && libobjs= - fi - fi - - if test yes = "$thread_safe" && test -n "$thread_safe_flag_spec"; then - eval flag=\"$thread_safe_flag_spec\" - func_append linker_flags " $flag" - fi - - # Make a backup of the uninstalled library when relinking - if test relink = "$opt_mode"; then - $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $? - fi - - # Do each of the archive commands. - if test yes = "$module" && test -n "$module_cmds"; then - if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then - eval test_cmds=\"$module_expsym_cmds\" - cmds=$module_expsym_cmds - else - eval test_cmds=\"$module_cmds\" - cmds=$module_cmds - fi - else - if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then - eval test_cmds=\"$archive_expsym_cmds\" - cmds=$archive_expsym_cmds - else - eval test_cmds=\"$archive_cmds\" - cmds=$archive_cmds - fi - fi - - if test : != "$skipped_export" && - func_len " $test_cmds" && - len=$func_len_result && - test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then - : - else - # The command line is too long to link in one step, link piecewise - # or, if using GNU ld and skipped_export is not :, use a linker - # script. - - # Save the value of $output and $libobjs because we want to - # use them later. 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All subsequent reloadable object - # files will link in the last one created. - test -z "$concat_cmds" || concat_cmds=$concat_cmds~ - reload_objs="$objlist $last_robj" - eval concat_cmds=\"\$concat_cmds$reload_cmds\" - if test -n "$last_robj"; then - eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\" - fi - func_append delfiles " $output" - - else - output= - fi - - ${skipped_export-false} && { - func_verbose "generating symbol list for '$libname.la'" - export_symbols=$output_objdir/$libname.exp - $opt_dry_run || $RM $export_symbols - libobjs=$output - # Append the command to create the export file. - test -z "$concat_cmds" || concat_cmds=$concat_cmds~ - eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\" - if test -n "$last_robj"; then - eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\" - fi - } - - test -n "$save_libobjs" && - func_verbose "creating a temporary reloadable object file: $output" - - # Loop through the commands generated above and execute them. - save_ifs=$IFS; IFS='~' - for cmd in $concat_cmds; do - IFS=$save_ifs - $opt_quiet || { - func_quote_for_expand "$cmd" - eval "func_echo $func_quote_for_expand_result" - } - $opt_dry_run || eval "$cmd" || { - lt_exit=$? - - # Restore the uninstalled library and exit - if test relink = "$opt_mode"; then - ( cd "$output_objdir" && \ - $RM "${realname}T" && \ - $MV "${realname}U" "$realname" ) - fi - - exit $lt_exit - } - done - IFS=$save_ifs - - if test -n "$export_symbols_regex" && ${skipped_export-false}; then - func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' - func_show_eval '$MV "${export_symbols}T" "$export_symbols"' - fi - fi - - ${skipped_export-false} && { - if test -n "$export_symbols" && test -n "$include_expsyms"; then - tmp_export_symbols=$export_symbols - test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols - $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"' - fi - - if test -n "$orig_export_symbols"; then - # The given exports_symbols file has to be filtered, so filter it. - func_verbose "filter symbol list for '$libname.la' to tag DATA exports" - # FIXME: $output_objdir/$libname.filter potentially contains lots of - # 's' commands, which not all seds can handle. GNU sed should be fine - # though. 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then - libdir=$hardcode_libdirs - eval rpath=\" $hardcode_libdir_flag_spec\" - fi - compile_rpath=$rpath - - rpath= - hardcode_libdirs= - for libdir in $finalize_rpath; do - if test -n "$hardcode_libdir_flag_spec"; then - if test -n "$hardcode_libdir_separator"; then - if test -z "$hardcode_libdirs"; then - hardcode_libdirs=$libdir - else - # Just accumulate the unique libdirs. - case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in - *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*) - ;; - *) - func_append hardcode_libdirs "$hardcode_libdir_separator$libdir" - ;; - esac - fi - else - eval flag=\"$hardcode_libdir_flag_spec\" - func_append rpath " $flag" - fi - elif test -n "$runpath_var"; then - case "$finalize_perm_rpath " in - *" $libdir "*) ;; - *) func_append finalize_perm_rpath " $libdir" ;; - esac - fi - done - # Substitute the hardcoded libdirs into the rpath. - if test -n "$hardcode_libdir_separator" && - test -n "$hardcode_libdirs"; then - libdir=$hardcode_libdirs - eval rpath=\" $hardcode_libdir_flag_spec\" - fi - finalize_rpath=$rpath - - if test -n "$libobjs" && test yes = "$build_old_libs"; 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You may also peek at any GNU archive site, in" - echo "case some other package contains this missing '$1' program." - ;; - esac -} - -give_advice "$1" | sed -e '1s/^/WARNING: /' \ - -e '2,$s/^/ /' >&2 - -# Propagate the correct exit status (expected to be 127 for a program -# not found, 63 for a program that failed due to version mismatch). -exit $st - -# Local variables: -# eval: (add-hook 'before-save-hook 'time-stamp) -# time-stamp-start: "scriptversion=" -# time-stamp-format: "%:y-%02m-%02d.%02H" -# time-stamp-time-zone: "UTC0" -# time-stamp-end: "; # UTC" -# End: diff --git a/build-aux/tap-driver.sh b/build-aux/tap-driver.sh deleted file mode 100755 index 2516e9c..0000000 --- a/build-aux/tap-driver.sh +++ /dev/null @@ -1,651 +0,0 @@ -#! /bin/sh -# Copyright (C) 2011-2018 Free Software Foundation, Inc. -# -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2, or (at your option) -# any later version. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program. If not, see . - -# As a special exception to the GNU General Public License, if you -# distribute this file as part of a program that contains a -# configuration script generated by Autoconf, you may include it under -# the same distribution terms that you use for the rest of that program. - -# This file is maintained in Automake, please report -# bugs to or send patches to -# . - -scriptversion=2013-12-23.17; # UTC - -# Make unconditional expansion of undefined variables an error. This -# helps a lot in preventing typo-related bugs. -set -u - -me=tap-driver.sh - -fatal () -{ - echo "$me: fatal: $*" >&2 - exit 1 -} - -usage_error () -{ - echo "$me: $*" >&2 - print_usage >&2 - exit 2 -} - -print_usage () -{ - cat < - # - trap : 1 3 2 13 15 - if test $merge -gt 0; then - exec 2>&1 - else - exec 2>&3 - fi - "$@" - echo $? - ) | LC_ALL=C ${AM_TAP_AWK-awk} \ - -v me="$me" \ - -v test_script_name="$test_name" \ - -v log_file="$log_file" \ - -v trs_file="$trs_file" \ - -v expect_failure="$expect_failure" \ - -v merge="$merge" \ - -v ignore_exit="$ignore_exit" \ - -v comments="$comments" \ - -v diag_string="$diag_string" \ -' -# TODO: the usages of "cat >&3" below could be optimized when using -# GNU awk, and/on on systems that supports /dev/fd/. - -# Implementation note: in what follows, `result_obj` will be an -# associative array that (partly) simulates a TAP result object -# from the `TAP::Parser` perl module. - -## ----------- ## -## FUNCTIONS ## -## ----------- ## - -function fatal(msg) -{ - print me ": " msg | "cat >&2" - exit 1 -} - -function abort(where) -{ - fatal("internal error " where) -} - -# Convert a boolean to a "yes"/"no" string. -function yn(bool) -{ - return bool ? "yes" : "no"; -} - -function add_test_result(result) -{ - if (!test_results_index) - test_results_index = 0 - test_results_list[test_results_index] = result - test_results_index += 1 - test_results_seen[result] = 1; -} - -# Whether the test script should be re-run by "make recheck". -function must_recheck() -{ - for (k in test_results_seen) - if (k != "XFAIL" && k != "PASS" && k != "SKIP") - return 1 - return 0 -} - -# Whether the content of the log file associated to this test should -# be copied into the "global" test-suite.log. -function copy_in_global_log() -{ - for (k in test_results_seen) - if (k != "PASS") - return 1 - return 0 -} - -function get_global_test_result() -{ - if ("ERROR" in test_results_seen) - return "ERROR" - if ("FAIL" in test_results_seen || "XPASS" in test_results_seen) - return "FAIL" - all_skipped = 1 - for (k in test_results_seen) - if (k != "SKIP") - all_skipped = 0 - if (all_skipped) - return "SKIP" - return "PASS"; -} - -function stringify_result_obj(result_obj) -{ - if (result_obj["is_unplanned"] || result_obj["number"] != testno) - return "ERROR" - - if (plan_seen == LATE_PLAN) - return "ERROR" - - if (result_obj["directive"] == "TODO") - return result_obj["is_ok"] ? "XPASS" : "XFAIL" - - if (result_obj["directive"] == "SKIP") - return result_obj["is_ok"] ? "SKIP" : COOKED_FAIL; - - if (length(result_obj["directive"])) - abort("in function stringify_result_obj()") - - return result_obj["is_ok"] ? COOKED_PASS : COOKED_FAIL -} - -function decorate_result(result) -{ - color_name = color_for_result[result] - if (color_name) - return color_map[color_name] "" result "" color_map["std"] - # If we are not using colorized output, or if we do not know how - # to colorize the given result, we should return it unchanged. - return result -} - -function report(result, details) -{ - if (result ~ /^(X?(PASS|FAIL)|SKIP|ERROR)/) - { - msg = ": " test_script_name - add_test_result(result) - } - else if (result == "#") - { - msg = " " test_script_name ":" - } - else - { - abort("in function report()") - } - if (length(details)) - msg = msg " " details - # Output on console might be colorized. - print decorate_result(result) msg - # Log the result in the log file too, to help debugging (this is - # especially true when said result is a TAP error or "Bail out!"). - print result msg | "cat >&3"; -} - -function testsuite_error(error_message) -{ - report("ERROR", "- " error_message) -} - -function handle_tap_result() -{ - details = result_obj["number"]; - if (length(result_obj["description"])) - details = details " " result_obj["description"] - - if (plan_seen == LATE_PLAN) - { - details = details " # AFTER LATE PLAN"; - } - else if (result_obj["is_unplanned"]) - { - details = details " # UNPLANNED"; - } - else if (result_obj["number"] != testno) - { - details = sprintf("%s # OUT-OF-ORDER (expecting %d)", - details, testno); - } - else if (result_obj["directive"]) - { - details = details " # " result_obj["directive"]; - if (length(result_obj["explanation"])) - details = details " " result_obj["explanation"] - } - - report(stringify_result_obj(result_obj), details) -} - -# `skip_reason` should be empty whenever planned > 0. -function handle_tap_plan(planned, skip_reason) -{ - planned += 0 # Avoid getting confused if, say, `planned` is "00" - if (length(skip_reason) && planned > 0) - abort("in function handle_tap_plan()") - if (plan_seen) - { - # Error, only one plan per stream is acceptable. - testsuite_error("multiple test plans") - return; - } - planned_tests = planned - # The TAP plan can come before or after *all* the TAP results; we speak - # respectively of an "early" or a "late" plan. If we see the plan line - # after at least one TAP result has been seen, assume we have a late - # plan; in this case, any further test result seen after the plan will - # be flagged as an error. - plan_seen = (testno >= 1 ? LATE_PLAN : EARLY_PLAN) - # If testno > 0, we have an error ("too many tests run") that will be - # automatically dealt with later, so do not worry about it here. If - # $plan_seen is true, we have an error due to a repeated plan, and that - # has already been dealt with above. Otherwise, we have a valid "plan - # with SKIP" specification, and should report it as a particular kind - # of SKIP result. - if (planned == 0 && testno == 0) - { - if (length(skip_reason)) - skip_reason = "- " skip_reason; - report("SKIP", skip_reason); - } -} - -function extract_tap_comment(line) -{ - if (index(line, diag_string) == 1) - { - # Strip leading `diag_string` from `line`. - line = substr(line, length(diag_string) + 1) - # And strip any leading and trailing whitespace left. - sub("^[ \t]*", "", line) - sub("[ \t]*$", "", line) - # Return what is left (if any). - return line; - } - return ""; -} - -# When this function is called, we know that line is a TAP result line, -# so that it matches the (perl) RE "^(not )?ok\b". -function setup_result_obj(line) -{ - # Get the result, and remove it from the line. - result_obj["is_ok"] = (substr(line, 1, 2) == "ok" ? 1 : 0) - sub("^(not )?ok[ \t]*", "", line) - - # If the result has an explicit number, get it and strip it; otherwise, - # automatically assing the next progresive number to it. - if (line ~ /^[0-9]+$/ || line ~ /^[0-9]+[^a-zA-Z0-9_]/) - { - match(line, "^[0-9]+") - # The final `+ 0` is to normalize numbers with leading zeros. - result_obj["number"] = substr(line, 1, RLENGTH) + 0 - line = substr(line, RLENGTH + 1) - } - else - { - result_obj["number"] = testno - } - - if (plan_seen == LATE_PLAN) - # No further test results are acceptable after a "late" TAP plan - # has been seen. - result_obj["is_unplanned"] = 1 - else if (plan_seen && testno > planned_tests) - result_obj["is_unplanned"] = 1 - else - result_obj["is_unplanned"] = 0 - - # Strip trailing and leading whitespace. - sub("^[ \t]*", "", line) - sub("[ \t]*$", "", line) - - # This will have to be corrected if we have a "TODO"/"SKIP" directive. - result_obj["description"] = line - result_obj["directive"] = "" - result_obj["explanation"] = "" - - if (index(line, "#") == 0) - return # No possible directive, nothing more to do. - - # Directives are case-insensitive. - rx = "[ \t]*#[ \t]*([tT][oO][dD][oO]|[sS][kK][iI][pP])[ \t]*" - - # See whether we have the directive, and if yes, where. - pos = match(line, rx "$") - if (!pos) - pos = match(line, rx "[^a-zA-Z0-9_]") - - # If there was no TAP directive, we have nothing more to do. - if (!pos) - return - - # Let`s now see if the TAP directive has been escaped. For example: - # escaped: ok \# SKIP - # not escaped: ok \\# SKIP - # escaped: ok \\\\\# SKIP - # not escaped: ok \ # SKIP - if (substr(line, pos, 1) == "#") - { - bslash_count = 0 - for (i = pos; i > 1 && substr(line, i - 1, 1) == "\\"; i--) - bslash_count += 1 - if (bslash_count % 2) - return # Directive was escaped. - } - - # Strip the directive and its explanation (if any) from the test - # description. - result_obj["description"] = substr(line, 1, pos - 1) - # Now remove the test description from the line, that has been dealt - # with already. - line = substr(line, pos) - # Strip the directive, and save its value (normalized to upper case). - sub("^[ \t]*#[ \t]*", "", line) - result_obj["directive"] = toupper(substr(line, 1, 4)) - line = substr(line, 5) - # Now get the explanation for the directive (if any), with leading - # and trailing whitespace removed. - sub("^[ \t]*", "", line) - sub("[ \t]*$", "", line) - result_obj["explanation"] = line -} - -function get_test_exit_message(status) -{ - if (status == 0) - return "" - if (status !~ /^[1-9][0-9]*$/) - abort("getting exit status") - if (status < 127) - exit_details = "" - else if (status == 127) - exit_details = " (command not found?)" - else if (status >= 128 && status <= 255) - exit_details = sprintf(" (terminated by signal %d?)", status - 128) - else if (status > 256 && status <= 384) - # We used to report an "abnormal termination" here, but some Korn - # shells, when a child process die due to signal number n, can leave - # in $? an exit status of 256+n instead of the more standard 128+n. - # Apparently, both behaviours are allowed by POSIX (2008), so be - # prepared to handle them both. See also Austing Group report ID - # 0000051 - exit_details = sprintf(" (terminated by signal %d?)", status - 256) - else - # Never seen in practice. - exit_details = " (abnormal termination)" - return sprintf("exited with status %d%s", status, exit_details) -} - -function write_test_results() -{ - print ":global-test-result: " get_global_test_result() > trs_file - print ":recheck: " yn(must_recheck()) > trs_file - print ":copy-in-global-log: " yn(copy_in_global_log()) > trs_file - for (i = 0; i < test_results_index; i += 1) - print ":test-result: " test_results_list[i] > trs_file - close(trs_file); -} - -BEGIN { - -## ------- ## -## SETUP ## -## ------- ## - -'"$init_colors"' - -# Properly initialized once the TAP plan is seen. -planned_tests = 0 - -COOKED_PASS = expect_failure ? "XPASS": "PASS"; -COOKED_FAIL = expect_failure ? "XFAIL": "FAIL"; - -# Enumeration-like constants to remember which kind of plan (if any) -# has been seen. It is important that NO_PLAN evaluates "false" as -# a boolean. -NO_PLAN = 0 -EARLY_PLAN = 1 -LATE_PLAN = 2 - -testno = 0 # Number of test results seen so far. -bailed_out = 0 # Whether a "Bail out!" directive has been seen. - -# Whether the TAP plan has been seen or not, and if yes, which kind -# it is ("early" is seen before any test result, "late" otherwise). -plan_seen = NO_PLAN - -## --------- ## -## PARSING ## -## --------- ## - -is_first_read = 1 - -while (1) - { - # Involutions required so that we are able to read the exit status - # from the last input line. - st = getline - if (st < 0) # I/O error. - fatal("I/O error while reading from input stream") - else if (st == 0) # End-of-input - { - if (is_first_read) - abort("in input loop: only one input line") - break - } - if (is_first_read) - { - is_first_read = 0 - nextline = $0 - continue - } - else - { - curline = nextline - nextline = $0 - $0 = curline - } - # Copy any input line verbatim into the log file. - print | "cat >&3" - # Parsing of TAP input should stop after a "Bail out!" directive. - if (bailed_out) - continue - - # TAP test result. - if ($0 ~ /^(not )?ok$/ || $0 ~ /^(not )?ok[^a-zA-Z0-9_]/) - { - testno += 1 - setup_result_obj($0) - handle_tap_result() - } - # TAP plan (normal or "SKIP" without explanation). - else if ($0 ~ /^1\.\.[0-9]+[ \t]*$/) - { - # The next two lines will put the number of planned tests in $0. - sub("^1\\.\\.", "") - sub("[^0-9]*$", "") - handle_tap_plan($0, "") - continue - } - # TAP "SKIP" plan, with an explanation. - else if ($0 ~ /^1\.\.0+[ \t]*#/) - { - # The next lines will put the skip explanation in $0, stripping - # any leading and trailing whitespace. This is a little more - # tricky in truth, since we want to also strip a potential leading - # "SKIP" string from the message. - sub("^[^#]*#[ \t]*(SKIP[: \t][ \t]*)?", "") - sub("[ \t]*$", ""); - handle_tap_plan(0, $0) - } - # "Bail out!" magic. - # Older versions of prove and TAP::Harness (e.g., 3.17) did not - # recognize a "Bail out!" directive when preceded by leading - # whitespace, but more modern versions (e.g., 3.23) do. So we - # emulate the latter, "more modern" behaviour. - else if ($0 ~ /^[ \t]*Bail out!/) - { - bailed_out = 1 - # Get the bailout message (if any), with leading and trailing - # whitespace stripped. The message remains stored in `$0`. - sub("^[ \t]*Bail out![ \t]*", ""); - sub("[ \t]*$", ""); - # Format the error message for the - bailout_message = "Bail out!" - if (length($0)) - bailout_message = bailout_message " " $0 - testsuite_error(bailout_message) - } - # Maybe we have too look for dianogtic comments too. - else if (comments != 0) - { - comment = extract_tap_comment($0); - if (length(comment)) - report("#", comment); - } - } - -## -------- ## -## FINISH ## -## -------- ## - -# A "Bail out!" directive should cause us to ignore any following TAP -# error, as well as a non-zero exit status from the TAP producer. -if (!bailed_out) - { - if (!plan_seen) - { - testsuite_error("missing test plan") - } - else if (planned_tests != testno) - { - bad_amount = testno > planned_tests ? "many" : "few" - testsuite_error(sprintf("too %s tests run (expected %d, got %d)", - bad_amount, planned_tests, testno)) - } - if (!ignore_exit) - { - # Fetch exit status from the last line. - exit_message = get_test_exit_message(nextline) - if (exit_message) - testsuite_error(exit_message) - } - } - -write_test_results() - -exit 0 - -} # End of "BEGIN" block. -' - -# TODO: document that we consume the file descriptor 3 :-( -} 3>"$log_file" - -test $? -eq 0 || fatal "I/O or internal error" - -# Local Variables: -# mode: shell-script -# sh-indentation: 2 -# eval: (add-hook 'before-save-hook 'time-stamp) -# time-stamp-start: "scriptversion=" -# time-stamp-format: "%:y-%02m-%02d.%02H" -# time-stamp-time-zone: "UTC0" -# time-stamp-end: "; # UTC" -# End: diff --git a/build-aux/test-driver b/build-aux/test-driver deleted file mode 100755 index b8521a4..0000000 --- a/build-aux/test-driver +++ /dev/null @@ -1,148 +0,0 @@ -#! /bin/sh -# test-driver - basic testsuite driver script. - -scriptversion=2018-03-07.03; # UTC - -# Copyright (C) 2011-2018 Free Software Foundation, Inc. -# -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2, or (at your option) -# any later version. -# -# This program is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program. If not, see . - -# As a special exception to the GNU General Public License, if you -# distribute this file as part of a program that contains a -# configuration script generated by Autoconf, you may include it under -# the same distribution terms that you use for the rest of that program. - -# This file is maintained in Automake, please report -# bugs to or send patches to -# . - -# Make unconditional expansion of undefined variables an error. This -# helps a lot in preventing typo-related bugs. -set -u - -usage_error () -{ - echo "$0: $*" >&2 - print_usage >&2 - exit 2 -} - -print_usage () -{ - cat <$log_file 2>&1 -estatus=$? - -if test $enable_hard_errors = no && test $estatus -eq 99; then - tweaked_estatus=1 -else - tweaked_estatus=$estatus -fi - -case $tweaked_estatus:$expect_failure in - 0:yes) col=$red res=XPASS recheck=yes gcopy=yes;; - 0:*) col=$grn res=PASS recheck=no gcopy=no;; - 77:*) col=$blu res=SKIP recheck=no gcopy=yes;; - 99:*) col=$mgn res=ERROR recheck=yes gcopy=yes;; - *:yes) col=$lgn res=XFAIL recheck=no gcopy=yes;; - *:*) col=$red res=FAIL recheck=yes gcopy=yes;; -esac - -# Report the test outcome and exit status in the logs, so that one can -# know whether the test passed or failed simply by looking at the '.log' -# file, without the need of also peaking into the corresponding '.trs' -# file (automake bug#11814). -echo "$res $test_name (exit status: $estatus)" >>$log_file - -# Report outcome to console. -echo "${col}${res}${std}: $test_name" - -# Register the test result, and other relevant metadata. -echo ":test-result: $res" > $trs_file -echo ":global-test-result: $res" >> $trs_file -echo ":recheck: $recheck" >> $trs_file -echo ":copy-in-global-log: $gcopy" >> $trs_file - -# Local Variables: -# mode: shell-script -# sh-indentation: 2 -# eval: (add-hook 'before-save-hook 'time-stamp) -# time-stamp-start: "scriptversion=" -# time-stamp-format: "%:y-%02m-%02d.%02H" -# time-stamp-time-zone: "UTC0" -# time-stamp-end: "; # UTC" -# End: diff --git a/bwrap.xml b/bwrap.xml index 7c53207..3bb5082 100644 --- a/bwrap.xml +++ b/bwrap.xml @@ -6,7 +6,7 @@ bwrap - Project Atomic + Containers Developer @@ -42,7 +42,8 @@ Description - bwrap is a privileged helper for container setup. You + bwrap is a unprivileged low-level sandboxing tool + (optionally setuid on older distributions). You are unlikely to use it directly from the commandline, although that is possible. @@ -91,6 +92,10 @@ multiple sources. + + + Set argv[0] to the value VALUE before running the program + Options related to kernel namespaces: @@ -130,16 +135,45 @@ Unshare all possible namespaces. Currently equivalent with: + + + Retain the network namespace, overriding an earlier or + - Use an existing user namespace instead of creating a new one. The namespace must fulfil the permission requirements for setns(), which generally means that it must be a decendant of the currently active user namespace, owned by the same user. + Use an existing user namespace instead of creating a new one. The namespace must fulfil the permission requirements for setns(), which generally means that it must be a descendant of the currently active user namespace, owned by the same user. This is incompatible with --unshare-user, and doesn't work in the setuid version of bubblewrap. - After setting up the new namespace, switch into the specified namespace. For this to work the specified namespace must be a decendant of the user namespace used for the setup, so this is only useful in combination with --userns. + After setting up the new namespace, switch into the specified namespace. For this to work the specified namespace must be a descendant of the user namespace used for the setup, so this is only useful in combination with --userns. This is useful because sometimes bubblewrap itself creates nested user namespaces (to work around some kernel issues) and --userns2 can be used to enter these. + + + + Prevent the process in the sandbox from creating further user namespaces, + so that it cannot rearrange the filesystem namespace or do other more + complex namespace modification. + This is currently implemented by setting the + user.max_user_namespaces sysctl to 1, and then + entering a nested user namespace which is unable to raise that limit + in the outer namespace. + This option requires , and doesn't work + in the setuid version of bubblewrap. + + + + + + Confirm that the process in the sandbox has been prevented from + creating further user namespaces, but without taking any particular + action to prevent that. For example, this can be combined with + to check that the given user namespace + has already been set up to prevent the creation of further user + namespaces. + + Use an existing pid namespace instead of creating one. This is often used with --userns, because the pid namespace must be owned by the same user namespace that bwrap uses. @@ -172,6 +206,12 @@ Unset an environment variable + + + Unset all environment variables, except for + PWD and any that are subsequently set by + + Options for monitoring the sandbox from the outside: @@ -190,10 +230,45 @@ Filesystem related options. These are all operations that modify the filesystem directly, or mounts stuff in the filesystem. These are applied in the order they are given as arguments. + + Any missing parent directories that are required to create a specified destination are - automatically created as needed. + automatically created as needed. Their permissions are normally set to 0755 + (rwxr-xr-x). However, if a option is in effect, and + it sets the permissions for group or other to zero, then newly-created + parent directories will also have their corresponding permission set to zero. + modifies the size of the created mount when preceding a + action; and + can be combined. + + + This option does nothing on its own, and must be followed + by one of the options that it affects. It sets the permissions + for the next operation to OCTAL. + Subsequent operations are not affected: for example, + --perms 0700 --tmpfs /a --tmpfs /b will mount + /a with permissions 0700, then return to + the default permissions for /b. + Note that and can be + combined: --perms 0700 --size 10485760 --tmpfs /s will apply + permissions as well as a maximum size to the created tmpfs. + + + + This option does nothing on its own, and must be followed + by --tmpfs. It sets the size in bytes for the next tmpfs. + For example, --size 10485760 --tmpfs /tmp will create a tmpfs + at /tmp of size 10MiB. Subsequent operations are not + affected: for example, + --size 10485760 --tmpfs /a --tmpfs /b will mount + /a with size 10MiB, then return to the default size for + /b. + Note that and can be + combined: --size 10485760 --perms 0700 --tmpfs /s will apply + permissions as well as a maximum size to the created tmpfs. + Bind mount the host path SRC on DEST @@ -232,7 +307,13 @@ - Mount new tmpfs on DEST + + Mount new tmpfs on DEST. + If the previous option was , it sets the + mode of the tmpfs. Otherwise, the tmpfs has mode 0755. + If the previous option was , it sets the + size in bytes of the tmpfs. Otherwise, the tmpfs has the default size. + @@ -240,23 +321,68 @@ - Create a directory at DEST + + Create a directory at DEST. + If the directory already exists, its permissions are unmodified, + ignoring (use + if the permissions of an existing directory need to be changed). + If the directory is newly created and the previous option was + , it sets the mode of the directory. + Otherwise, newly-created directories have mode 0755. + - Copy from the file descriptor FD to DEST + + Copy from the file descriptor FD to + DEST. + If the previous option was , it sets the + mode of the new file. Otherwise, the file has mode 0666 + (note that this is not the same as ). + - Copy from the file descriptor FD to a file which is bind-mounted on DEST + + Copy from the file descriptor FD to + a file which is bind-mounted on DEST. + If the previous option was , it sets the + mode of the new file. Otherwise, the file has mode 0600 + (note that this is not the same as ). + - Copy from the file descriptor FD to a file which is bind-mounted readonly on DEST + + Copy from the file descriptor FD to + a file which is bind-mounted read-only on + DEST. + If the previous option was , it sets the + mode of the new file. Otherwise, the file has mode 0600 + (note that this is not the same as ). + - Create a symlink at DEST with target SRC + + Create a symlink at DEST with target + SRC. + Since version 0.9.0, it is not considered to be an error if + DEST already exists as a symbolic link and its + target is exactly SRC. + Before version 0.9.0, if DEST already + existed, this would be treated as an error (even if its target + was identical to SRC). + + + + + + + Set the permissions of PATH, which + must already exist, to OCTAL. + + Lockdown options: @@ -265,8 +391,25 @@ Load and use seccomp rules from FD. - The rules need to be in the form of a compiled eBPF program, + The rules need to be in the form of a compiled cBPF program, as generated by seccomp_export_bpf. + If this option is given more than once, only the last one is used. + Use if multiple seccomp programs + are needed. + + + + + + Load and use seccomp rules from FD. + The rules need to be in the form of a compiled cBPF program, + as generated by seccomp_export_bpf. + This option can be repeated, in which case all the seccomp + programs will be loaded in the order given (note that the kernel + will evaluate them in reverse order, so the last program on the + bwrap command-line is evaluated first). All of them, except + possibly the last, must allow use of the PR_SET_SECCOMP prctl. + This option cannot be combined with . @@ -303,6 +446,28 @@ Write information in JSON format about the sandbox to FD. + + + + Multiple JSON documents are written to FD, + one per line ("JSON lines" format). + Each line is a single JSON object. + After bwrap has started the child process inside the sandbox, + it writes an object with a child-pid member to the + (this duplicates the older ). + The corresponding value is the process ID of the child process in the pid namespace from + which bwrap was run. + If available, the namespace IDs are also included in the object with the child-pid; + again, this duplicates the older . + When the child process inside the sandbox exits, bwrap writes an object + with an exit-code member, and then closes the . The value + corresponding to exit-code is the exit status of the child, in the usual + shell encoding (n if it exited normally with status n, or 128+n if it was killed by signal n). + Other members may be added to those objects in future versions of bwrap, + and other JSON objects may be added before or after the current objects, so readers must + ignore members and objects that they do not understand. + + @@ -312,7 +477,9 @@ Note: In a general sandbox, if you don't use --new-session, it is recommended to use seccomp to disallow the TIOCSTI ioctl, otherwise - the application can feed keyboard input to the terminal. + the application can feed keyboard input to the terminal + which can e.g. lead to out-of-sandbox command execution + (see CVE-2017-5226). @@ -333,7 +500,8 @@ - Add the specified capability when running as privileged user. It accepts + Add the specified capability CAP, e.g. + CAP_DAC_READ_SEARCH, when running as privileged user. It accepts the special value ALL to add all the permitted caps. diff --git a/ci/builddeps.sh b/ci/builddeps.sh new file mode 100755 index 0000000..4accd2e --- /dev/null +++ b/ci/builddeps.sh @@ -0,0 +1,111 @@ +#!/usr/bin/env bash +# Copyright 2021 Simon McVittie +# SPDX-License-Identifier: LGPL-2.0-or-later + +set -eux +set -o pipefail + +usage() { + if [ "${1-2}" -ne 0 ]; then + exec >&2 + fi + cat <&2 + usage 2 + ;; + esac +done + +# No more arguments please +for arg in "$@"; do + usage 2 +done + +if dpkg-vendor --derives-from Debian; then + apt-get -y update + apt-get -q -y install \ + autoconf \ + automake \ + build-essential \ + docbook-xml \ + docbook-xsl \ + libcap-dev \ + libselinux1-dev \ + libtool \ + meson \ + pkg-config \ + python3 \ + xsltproc \ + ${NULL+} + + if [ -n "${opt_clang}" ]; then + apt-get -y install clang + fi + + exit 0 +fi + +if command -v yum; then + yum -y install \ + 'pkgconfig(libselinux)' \ + /usr/bin/eu-readelf \ + autoconf \ + automake \ + docbook-style-xsl \ + gcc \ + git \ + libasan \ + libcap-devel \ + libtool \ + libtsan \ + libubsan \ + libxslt \ + make \ + meson \ + redhat-rpm-config \ + rsync \ + ${NULL+} + + if [ -n "${opt_clang}" ]; then + yum -y install clang + fi + + exit 0 +fi + +echo "Unknown distribution" >&2 +exit 1 + +# vim:set sw=4 sts=4 et: diff --git a/completions/bash/bwrap b/completions/bash/bwrap index e43b005..e6d2846 100644 --- a/completions/bash/bwrap +++ b/completions/bash/bwrap @@ -1,5 +1,5 @@ -#!/bin/bash -# +# shellcheck shell=bash + # bash completion file for bubblewrap commands # @@ -7,31 +7,39 @@ _bwrap() { local cur prev words cword _init_completion || return + # Please keep sorted in LC_ALL=C order local boolean_options=" --as-pid-1 + --assert-userns-disabled + --clearenv + --disable-userns --help --new-session + --unshare-all --unshare-cgroup --unshare-cgroup-try - --unshare-user - --unshare-user-try - --unshare-all --unshare-ipc --unshare-net --unshare-pid + --unshare-user + --unshare-user-try --unshare-uts --version " + # Please keep sorted in LC_ALL=C order local options_with_args=" $boolean_optons + --add-seccomp-fd --args + --argv0 --bind --bind-data --block-fd --cap-add --cap-drop --chdir + --chmod --dev --dev-bind --die-with-parent @@ -43,11 +51,13 @@ _bwrap() { --hostname --info-fd --lock-file + --perms --proc --remount-ro --ro-bind --seccomp --setenv + --size --symlink --sync-fd --uid @@ -55,10 +65,12 @@ _bwrap() { --userns-block-fd " - if [[ "$cur" == -* ]]; then - COMPREPLY=( $( compgen -W "$boolean_options $options_with_args" -- "$cur" ) ) - fi + if [[ "$cur" == -* ]]; then + COMPREPLY=( $( compgen -W "$boolean_options $options_with_args" -- "$cur" ) ) + fi - return 0 + return 0 } complete -F _bwrap bwrap + +# vim:set ft=bash: diff --git a/completions/bash/meson.build b/completions/bash/meson.build new file mode 100644 index 0000000..1dd946f --- /dev/null +++ b/completions/bash/meson.build @@ -0,0 +1,36 @@ +bash_completion_dir = get_option('bash_completion_dir') + +if bash_completion_dir == '' + bash_completion = dependency( + 'bash-completion', + version : '>=2.0', + required : false, + ) + + if bash_completion.found() + if meson.version().version_compare('>=0.51.0') + bash_completion_dir = bash_completion.get_variable( + default_value: '', + pkgconfig: 'completionsdir', + pkgconfig_define: [ + 'prefix', get_option('prefix'), + 'datadir', get_option('prefix') / get_option('datadir'), + ], + ) + else + bash_completion_dir = bash_completion.get_pkgconfig_variable( + 'completionsdir', + default: '', + define_variable: [ + 'datadir', get_option('prefix') / get_option('datadir'), + ], + ) + endif + endif +endif + +if bash_completion_dir == '' + bash_completion_dir = get_option('datadir') / 'bash-completion' / 'completions' +endif + +install_data('bwrap', install_dir : bash_completion_dir) diff --git a/completions/meson.build b/completions/meson.build new file mode 100644 index 0000000..958c90a --- /dev/null +++ b/completions/meson.build @@ -0,0 +1,7 @@ +if get_option('bash_completion').enabled() + subdir('bash') +endif + +if get_option('zsh_completion').enabled() + subdir('zsh') +endif diff --git a/completions/zsh/_bwrap b/completions/zsh/_bwrap new file mode 100644 index 0000000..fbddda4 --- /dev/null +++ b/completions/zsh/_bwrap @@ -0,0 +1,115 @@ +#compdef bwrap + +_bwrap_args_after_perms_size=( + # Please sort alphabetically (in LC_ALL=C order) by option name + '--tmpfs[Mount new tmpfs on DEST]:mount point for tmpfs:_files -/' +) + +_bwrap_args_after_perms=( + # Please sort alphabetically (in LC_ALL=C order) by option name + '--bind-data[Copy from FD to file which is bind-mounted on DEST]: :_guard "[0-9]#" "file descriptor to read content":destination:_files' + '--dir[Create dir at DEST]:directory to create:_files -/' + '--file[Copy from FD to destination DEST]: :_guard "[0-9]#" "file descriptor to read content from":destination:_files' + '--ro-bind-data[Copy from FD to file which is readonly bind-mounted on DEST]: :_guard "[0-9]#" "file descriptor to read content from":destination:_files' + '--size[Set size in bytes for next action argument]: :->after_perms_size' + '--tmpfs[Mount new tmpfs on DEST]:mount point for tmpfs:_files -/' +) + +_bwrap_args_after_size=( + # Please sort alphabetically (in LC_ALL=C order) by option name + '--perms[Set permissions for next action argument]: :_guard "[0-7]#" "permissions in octal": :->after_perms_size' + '--tmpfs[Mount new tmpfs on DEST]:mount point for tmpfs:_files -/' +) + +_bwrap_args=( + '*::arguments:_normal' + $_bwrap_args_after_perms + + # Please sort alphabetically (in LC_ALL=C order) by option name + '--add-seccomp-fd[Load and use seccomp rules from FD]: :_guard "[0-9]#" "file descriptor to read seccomp rules from"' + '--assert-userns-disabled[Fail unless further use of user namespace inside sandbox is disabled]' + '--args[Parse NUL-separated args from FD]: :_guard "[0-9]#" "file descriptor with NUL-separated arguments"' + '--argv0[Set argv0 to the value VALUE before running the program]:value:' + '--as-pid-1[Do not install a reaper process with PID=1]' + '--bind-try[Equal to --bind but ignores non-existent SRC]:source:_files:destination:_files' + '--bind[Bind mount the host path SRC on DEST]:source:_files:destination:_files' + '--block-fd[Block on FD until some data to read is available]: :_guard "[0-9]#" "file descriptor to block on"' + '--cap-add[Add cap CAP when running as privileged user]:capability to add:->caps' + '--cap-drop[Drop cap CAP when running as privileged user]:capability to add:->caps' + '--chdir[Change directory to DIR]:working directory for sandbox: _files -/' + '--chmod[Set permissions]: :_guard "[0-7]#" "permissions in octal":path to set permissions:_files' + '--clearenv[Unset all environment variables]' + '--dev-bind-try[Equal to --dev-bind but ignores non-existent SRC]:source:_files:destination:_files' + '--dev-bind[Bind mount the host path SRC on DEST, allowing device access]:source:_files:destination:_files' + '--dev[Mount new dev on DEST]:mount point for /dev:_files -/' + "--die-with-parent[Kills with SIGKILL child process (COMMAND) when bwrap or bwrap's parent dies.]" + '--disable-userns[Disable further use of user namespaces inside sandbox]' + '--exec-label[Exec label for the sandbox]:SELinux label:_selinux_contexts' + '--file-label[File label for temporary sandbox content]:SELinux label:_selinux_contexts' + '--gid[Custom gid in the sandbox (requires --unshare-user or --userns)]: :_guard "[0-9]#" "numeric group ID"' + '--help[Print help and exit]' + '--hostname[Custom hostname in the sandbox (requires --unshare-uts)]:hostname:' + '--info-fd[Write information about the running container to FD]: :_guard "[0-9]#" "file descriptor to write to"' + '--json-status-fd[Write container status to FD as multiple JSON documents]: :_guard "[0-9]#" "file descriptor to write to"' + '--lock-file[Take a lock on DEST while sandbox is running]:lock file:_files' + '--mqueue[Mount new mqueue on DEST]:mount point for mqueue:_files -/' + '--new-session[Create a new terminal session]' + '--perms[Set permissions for next action argument]: :_guard "[0-7]#" "permissions in octal": :->after_perms' + '--pidns[Use this user namespace (as parent namespace if using --unshare-pid)]: :' + '--proc[Mount new procfs on DEST]:mount point for procfs:_files -/' + '--remount-ro[Remount DEST as readonly; does not recursively remount]:mount point to remount read-only:_files' + '--ro-bind-try[Equal to --ro-bind but ignores non-existent SRC]:source:_files:destination:_files' + '--ro-bind[Bind mount the host path SRC readonly on DEST]:source:_files:destination:_files' + '--seccomp[Load and use seccomp rules from FD]: :_guard "[0-9]#" "file descriptor to read seccomp rules from"' + '--setenv[Set an environment variable]:variable to set:_parameters -g "*export*":value of variable: :' + '--size[Set size in bytes for next action argument]: :->after_size' + '--symlink[Create symlink at DEST with target SRC]:symlink target:_files:symlink to create:_files:' + '--sync-fd[Keep this fd open while sandbox is running]: :_guard "[0-9]#" "file descriptor to keep open"' + '--uid[Custom uid in the sandbox (requires --unshare-user or --userns)]: :_guard "[0-9]#" "numeric group ID"' + '(--clearenv)--unsetenv[Unset an environment variable]:variable to unset:_parameters -g "*export*"' + '--unshare-all[Unshare every namespace we support by default]' + '--unshare-cgroup-try[Create new cgroup namespace if possible else continue by skipping it]' + '--unshare-cgroup[Create new cgroup namespace]' + '--unshare-ipc[Create new ipc namespace]' + '--unshare-net[Create new network namespace]' + '--unshare-pid[Create new pid namespace]' + '(--userns --userns2)--unshare-user[Create new user namespace (may be automatically implied if not setuid)]' + '--unshare-user-try[Create new user namespace if possible else continue by skipping it]' + '--unshare-uts[Create new uts namespace]' + '(--unshare-user)--userns[Use this user namespace (cannot combine with --unshare-user)]: :' + '--userns-block-fd[Block on FD until the user namespace is ready]: :_guard "[0-9]#" "file descriptor to block on"' + '(--unshare-user)--userns2[After setup switch to this user namespace, only useful with --userns]: :' + '--version[Print version]' +) + +_bwrap() { + _arguments -S $_bwrap_args + case "$state" in + after_perms) + _values -S ' ' 'option' $_bwrap_args_after_perms + ;; + + after_size) + _values -S ' ' 'option' $_bwrap_args_after_size + ;; + + after_perms_size) + _values -S ' ' 'option' $_bwrap_args_after_perms_size + ;; + + caps) + # $ grep -E '#define\sCAP_\w+\s+[0-9]+' /usr/include/linux/capability.h | awk '{print $2}' | xargs echo + local all_caps=( + CAP_CHOWN CAP_DAC_OVERRIDE CAP_DAC_READ_SEARCH CAP_FOWNER CAP_FSETID \ + CAP_KILL CAP_SETGID CAP_SETUID CAP_SETPCAP CAP_LINUX_IMMUTABLE \ + CAP_NET_BIND_SERVICE CAP_NET_BROADCAST CAP_NET_ADMIN CAP_NET_RAW \ + CAP_IPC_LOCK CAP_IPC_OWNER CAP_SYS_MODULE CAP_SYS_RAWIO CAP_SYS_CHROOT \ + CAP_SYS_PTRACE CAP_SYS_PACCT CAP_SYS_ADMIN CAP_SYS_BOOT CAP_SYS_NICE \ + CAP_SYS_RESOURCE CAP_SYS_TIME CAP_SYS_TTY_CONFIG CAP_MKNOD CAP_LEASE \ + CAP_AUDIT_WRITE CAP_AUDIT_CONTROL CAP_SETFCAP CAP_MAC_OVERRIDE \ + CAP_MAC_ADMIN CAP_SYSLOG CAP_WAKE_ALARM CAP_BLOCK_SUSPEND CAP_AUDIT_READ + ) + _values 'caps' $all_caps + ;; + esac +} diff --git a/completions/zsh/meson.build b/completions/zsh/meson.build new file mode 100644 index 0000000..7bda727 --- /dev/null +++ b/completions/zsh/meson.build @@ -0,0 +1,7 @@ +zsh_completion_dir = get_option('zsh_completion_dir') + +if zsh_completion_dir == '' + zsh_completion_dir = get_option('datadir') / 'zsh' / 'site-functions' +endif + +install_data('_bwrap', install_dir : zsh_completion_dir) diff --git a/config.h.in b/config.h.in deleted file mode 100644 index aad4b45..0000000 --- a/config.h.in +++ /dev/null @@ -1,104 +0,0 @@ -/* config.h.in. Generated from configure.ac by autoheader. */ - -/* Define if userns should be used by default in suid mode */ -#undef ENABLE_REQUIRE_USERNS - -/* Define to 1 if you have the header file. */ -#undef HAVE_INTTYPES_H - -/* Define to 1 if you have the `cap' library (-lcap). */ -#undef HAVE_LIBCAP - -/* Define to 1 if you have the header file. */ -#undef HAVE_MEMORY_H - -/* Define if SELinux is available */ -#undef HAVE_SELINUX - -/* Define to 1 if you have the header file. */ -#undef HAVE_STDINT_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_STDLIB_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_STRINGS_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_STRING_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_CAPABILITY_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_STAT_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_TYPES_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_UNISTD_H - -/* Define to the address where bug reports for this package should be sent. */ -#undef PACKAGE_BUGREPORT - -/* Define to the full name of this package. */ -#undef PACKAGE_NAME - -/* Define to the full name and version of this package. */ -#undef PACKAGE_STRING - -/* Define to the one symbol short name of this package. */ -#undef PACKAGE_TARNAME - -/* Define to the home page for this package. */ -#undef PACKAGE_URL - -/* Define to the version of this package. */ -#undef PACKAGE_VERSION - -/* Define to 1 if you have the ANSI C header files. */ -#undef STDC_HEADERS - -/* Enable extensions on AIX 3, Interix. */ -#ifndef _ALL_SOURCE -# undef _ALL_SOURCE -#endif -/* Enable GNU extensions on systems that have them. */ -#ifndef _GNU_SOURCE -# undef _GNU_SOURCE -#endif -/* Enable threading extensions on Solaris. */ -#ifndef _POSIX_PTHREAD_SEMANTICS -# undef _POSIX_PTHREAD_SEMANTICS -#endif -/* Enable extensions on HP NonStop. */ -#ifndef _TANDEM_SOURCE -# undef _TANDEM_SOURCE -#endif -/* Enable general extensions on Solaris. */ -#ifndef __EXTENSIONS__ -# undef __EXTENSIONS__ -#endif - - -/* Enable large inode numbers on Mac OS X 10.5. */ -#ifndef _DARWIN_USE_64_BIT_INODE -# define _DARWIN_USE_64_BIT_INODE 1 -#endif - -/* Number of bits in a file offset, on hosts where this is settable. */ -#undef _FILE_OFFSET_BITS - -/* Define for large files, on AIX-style hosts. */ -#undef _LARGE_FILES - -/* Define to 1 if on MINIX. */ -#undef _MINIX - -/* Define to 2 if the system does not provide POSIX.1 features except with - this defined. */ -#undef _POSIX_1_SOURCE - -/* Define to 1 if you need to in order for `stat' and other things to work. */ -#undef _POSIX_SOURCE diff --git a/configure b/configure deleted file mode 100755 index 35279a9..0000000 --- a/configure +++ /dev/null @@ -1,7303 +0,0 @@ -#! /bin/sh -# Guess values for system-dependent variables and create Makefiles. -# Generated by GNU Autoconf 2.69 for bubblewrap 0.4.0. -# -# Report bugs to . -# -# -# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc. -# -# -# This configure script is free software; the Free Software Foundation -# gives unlimited permission to copy, distribute and modify it. -## -------------------- ## -## M4sh Initialization. ## -## -------------------- ## - -# Be more Bourne compatible -DUALCASE=1; export DUALCASE # for MKS sh -if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : - emulate sh - NULLCMD=: - # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which - # is contrary to our usage. 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When coming back to configure, we -# need to make the FD available again. -if test "$no_create" != yes; then - ac_cs_success=: - ac_config_status_args= - test "$silent" = yes && - ac_config_status_args="$ac_config_status_args --quiet" - exec 5>/dev/null - $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false - exec 5>>config.log - # Use ||, not &&, to avoid exiting from the if with $? = 1, which - # would make configure fail if this is the last instruction. - $ac_cs_success || as_fn_exit 1 -fi -if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then - { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5 -$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;} -fi - - -echo " - bubblewrap $VERSION - =================== - - man pages (xsltproc): $enable_man - SELinux: $have_selinux - setuid mode on make install: $with_priv_mode - require default userns: $enable_require_userns - mysteriously satisfying to pop: yes" -echo "" diff --git a/configure.ac b/configure.ac index c8c0560..7f445c6 100644 --- a/configure.ac +++ b/configure.ac @@ -1,5 +1,5 @@ AC_PREREQ([2.63]) -AC_INIT([bubblewrap], [0.4.0], [atomic-devel@projectatomic.io]) +AC_INIT([bubblewrap], [0.9.0], [atomic-devel@projectatomic.io]) AC_CONFIG_HEADER([config.h]) AC_CONFIG_MACRO_DIR([m4]) AC_CONFIG_AUX_DIR([build-aux]) @@ -14,6 +14,7 @@ AC_SYS_LARGEFILE AC_PROG_CC AM_PROG_CC_C_O +PKG_PROG_PKG_CONFIG([]) AC_CHECK_HEADERS([sys/capability.h], [], [AC_MSG_ERROR([*** POSIX caps headers not found])]) @@ -41,35 +42,55 @@ AC_ARG_WITH([bash-completion-dir], [], [with_bash_completion_dir=yes]) -if test "x$with_bash_completion_dir" = "xyes"; then +AS_IF([test "x$with_bash_completion_dir" = "xyes"], + [ PKG_CHECK_MODULES([BASH_COMPLETION], [bash-completion >= 2.0], [BASH_COMPLETION_DIR="`pkg-config --variable=completionsdir bash-completion`"], [BASH_COMPLETION_DIR="$datadir/bash-completion/completions"]) -else + ], + [ BASH_COMPLETION_DIR="$with_bash_completion_dir" -fi + ]) AC_SUBST([BASH_COMPLETION_DIR]) AM_CONDITIONAL([ENABLE_BASH_COMPLETION],[test "x$with_bash_completion_dir" != "xno"]) + +AC_ARG_WITH([zsh-completion-dir], + AS_HELP_STRING([--with-zsh-completion-dir[=PATH]], + [Install the zsh auto-completion script in this directory. @<:@default=yes@:>@]), + [], + [with_zsh_completion_dir=yes]) + +AS_IF([test "x$with_zsh_completion_dir" = "xyes"], + [ZSH_COMPLETION_DIR="$datadir/zsh/site-functions"], + [ZSH_COMPLETION_DIR="$with_zsh_completion_dir"]) + + +AC_SUBST([ZSH_COMPLETION_DIR]) +AM_CONDITIONAL([ENABLE_ZSH_COMPLETION], [test "x$with_zsh_completion_dir" != "xno"]) + # ------------------------------------------------------------------------------ have_selinux=no AC_ARG_ENABLE(selinux, AS_HELP_STRING([--disable-selinux], [Disable optional SELINUX support])) -if test "x$enable_selinux" != "xno"; then +AS_IF([test "x$enable_selinux" != "xno"], [ PKG_CHECK_MODULES([SELINUX], [libselinux >= 2.1.9], [AC_DEFINE(HAVE_SELINUX, 1, [Define if SELinux is available]) have_selinux=yes M4_DEFINES="$M4_DEFINES -DHAVE_SELINUX"], [have_selinux=no]) - if test "x$have_selinux" = xno -a "x$enable_selinux" = xyes; then - AC_MSG_ERROR([*** SELinux support requested but libraries not found]) - fi -fi + AS_IF([test "x$have_selinux" = xno && test "x$enable_selinux" = xyes], + [AC_MSG_ERROR([*** SELinux support requested but libraries not found])]) + PKG_CHECK_MODULES([SELINUX_2_3], [libselinux >= 2.3], + [AC_DEFINE(HAVE_SELINUX_2_3, 1, [Define if SELinux is version >= 2.3])], + [:]) +]) AM_CONDITIONAL(HAVE_SELINUX, [test "$have_selinux" = "yes"]) dnl Keep this in sync with ostree, except remove -Werror=declaration-after-statement CC_CHECK_FLAGS_APPEND([WARN_CFLAGS], [CFLAGS], [\ -pipe \ -Wall \ + -Werror=shadow \ -Werror=empty-body \ -Werror=strict-prototypes \ -Werror=missing-prototypes \ @@ -84,14 +105,15 @@ CC_CHECK_FLAGS_APPEND([WARN_CFLAGS], [CFLAGS], [\ -Werror=incompatible-pointer-types \ -Werror=misleading-indentation \ -Werror=missing-include-dirs -Werror=aggregate-return \ + -Werror=switch-default \ + -Wswitch-enum \ ]) AC_SUBST(WARN_CFLAGS) AC_CHECK_LIB(cap, cap_from_text) -if test "$ac_cv_lib_cap_cap_from_text" != "yes"; then - AC_MSG_ERROR([*** libcap requested but not found]) -fi +AS_IF([test "$ac_cv_lib_cap_cap_from_text" != "yes"], + [AC_MSG_ERROR([*** libcap requested but not found])]) AC_ARG_WITH(priv-mode, AS_HELP_STRING([--with-priv-mode=setuid/none], diff --git a/debian/bubblewrap.examples b/debian/bubblewrap.examples deleted file mode 100644 index dde105a..0000000 --- a/debian/bubblewrap.examples +++ /dev/null @@ -1 +0,0 @@ -demos/* diff --git a/debian/changelog b/debian/changelog deleted file mode 100644 index 076010d..0000000 --- a/debian/changelog +++ /dev/null @@ -1,24 +0,0 @@ -bubblewrap (0.4.0-ok4) yangtze; urgency=medium - - * update version info - - -- luzhiping Mon, 22 Aug 2022 13:52:33 +0800 - -bubblewrap (0.4.0-ok3) yangtze; urgency=medium - - * fix debian/rules - - -- Luoyaoming Sat, 04 Jun 2022 12:59:22 +0800 - -bubblewrap (0.4.0-ok2) yangtze; urgency=medium - - * debian/rules: - fix openkylin vendor - - -- Luoyaoming Fri, 03 Jun 2022 14:18:53 +0800 - -bubblewrap (0.4.0-ok1) yangtze; urgency=medium - - * Build for openKylin. - - -- openKylinBot Mon, 25 Apr 2022 22:03:04 +0800 diff --git a/debian/clean b/debian/clean deleted file mode 100644 index 5da17f8..0000000 --- a/debian/clean +++ /dev/null @@ -1 +0,0 @@ -config.log diff --git a/debian/control b/debian/control deleted file mode 100644 index a988a93..0000000 --- a/debian/control +++ /dev/null @@ -1,36 +0,0 @@ -Source: bubblewrap -Section: admin -Priority: optional -Maintainer: Openkylin Developers -XSBC-Original-Maintainer: Utopia Maintenance Team -Uploaders: - Laszlo Boszormenyi (GCS) , - Simon McVittie , -Build-Depends: - automake (>= 1.14.1), - bash-completion, - debhelper-compat (= 12), - docbook-xml, - docbook-xsl, - libcap-dev, - libselinux1-dev (>= 2.1.9), - pkg-config, - python3 , - xsltproc, -Standards-Version: 4.4.1 -Homepage: https://github.com/projectatomic/bubblewrap -Vcs-Git: https://salsa.debian.org/debian/bubblewrap.git -Vcs-Browser: https://salsa.debian.org/debian/bubblewrap -Rules-Requires-Root: no - -Package: bubblewrap -Architecture: linux-any -Multi-arch: foreign -Depends: - ${misc:Depends}, - ${shlibs:Depends}, -Breaks: - flatpak (<< 0.8.0-0), -Description: setuid wrapper for unprivileged chroot and namespace manipulation - Core execution engine for unprivileged containers that works as a setuid - binary on kernels without user namespaces. diff --git a/debian/copyright b/debian/copyright deleted file mode 100644 index e699dda..0000000 --- a/debian/copyright +++ /dev/null @@ -1,68 +0,0 @@ -Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/ -Upstream-Name: bubblewrap -Source: https://github.com/projectatomic/bubblewrap/ - -Files: * -Copyright: 2016 Alexander Larsson -License: LGPL-2+ - -Files: debian/* -Copyright: 2016 Laszlo Boszormenyi (GCS) -License: LGPL-2+ - -Files: m4/attributes.m4 -Copyright: - 2006-2008 Diego Pettenò - 2006-2008 xine project - 2012 Lucas De Marchi -License: GPL-2+ with Autoconf exception - -License: LGPL-2+ - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public - License as published by the Free Software Foundation; either - version 2 of the License, or (at your option) any later version. - . - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - . - You should have received a copy of the GNU Library General Public - License along with this library; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 - USA. - . - On Debian systems, the full text of the GNU Library General Public License - version 2 can be found in the file `/usr/share/common-licenses/LGPL-2'. - -License: GPL-2+ with Autoconf exception - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - . - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - . - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - 02110-1301, USA. - . - As a special exception, the copyright owners of the - macro gives unlimited permission to copy, distribute and modify the - configure scripts that are the output of Autoconf when processing the - Macro. You need not follow the terms of the GNU General Public - License when using or distributing such scripts, even though portions - of the text of the Macro appear in them. The GNU General Public - License (GPL) does govern all other use of the material that - constitutes the Autoconf Macro. - . - This special exception to the GPL applies to versions of the - Autoconf Macro released by this project. When you make and - distribute a modified version of the Autoconf Macro, you may extend - this special exception to the GPL to apply to your modified version as - well. diff --git a/debian/docs b/debian/docs deleted file mode 100644 index b43bf86..0000000 --- a/debian/docs +++ /dev/null @@ -1 +0,0 @@ -README.md diff --git a/debian/lintian-overrides b/debian/lintian-overrides deleted file mode 100644 index 822657b..0000000 --- a/debian/lintian-overrides +++ /dev/null @@ -1,2 +0,0 @@ -# this is known and intentional -bubblewrap: setuid-binary usr/bin/bwrap 4755 root/root diff --git a/debian/rules b/debian/rules deleted file mode 100755 index a4a3716..0000000 --- a/debian/rules +++ /dev/null @@ -1,42 +0,0 @@ -#!/usr/bin/make -f -# -*- makefile -*- - -export DEB_BUILD_MAINT_OPTIONS = hardening=+pie,+bindnow - -# Uncomment this to turn on verbose mode. -#export DH_VERBOSE=1 - -PKGDIR=$(CURDIR)/debian/bubblewrap - -%: - dh $@ - -override_dh_fixperms: - chmod a+x $(PKGDIR)/usr/share/bash-completion/completions/bwrap -# Ubuntu enables unprivileged user namespaces; no need for bwrap to be suid -# there. -ifneq (yes,$(shell dpkg-vendor --derives-from Ubuntu && echo yes)) - chmod 04755 $(PKGDIR)/usr/bin/bwrap - dh_fixperms -Xbin/bwrap -else - dh_fixperms -endif - -ifneq (yes,$(shell dpkg-vendor --derives-from openKylin && echo yes)) - chmod 04755 $(PKGDIR)/usr/bin/bwrap - dh_fixperms -Xbin/bwrap -else - dh_fixperms -endif - -.PHONY: override_dh_fixperms - -override_dh_auto_test: -ifeq (,$(filter nocheck,$(DEB_BUILD_OPTIONS))) - # Remove LD_PRELOAD so we don't run with faketime. It uses - # sem_open(), but bubblewrap runs in an environment where that - # can't work. - env -u LD_PRELOAD dh_auto_test -endif - -.PHONY: override_dh_auto_test diff --git a/debian/salsa-ci.yml b/debian/salsa-ci.yml deleted file mode 100644 index 0c22dc4..0000000 --- a/debian/salsa-ci.yml +++ /dev/null @@ -1,3 +0,0 @@ -include: - - https://salsa.debian.org/salsa-ci-team/pipeline/raw/master/salsa-ci.yml - - https://salsa.debian.org/salsa-ci-team/pipeline/raw/master/pipeline-jobs.yml diff --git a/debian/source/format b/debian/source/format deleted file mode 100644 index 89ae9db..0000000 --- a/debian/source/format +++ /dev/null @@ -1 +0,0 @@ -3.0 (native) diff --git a/debian/tests/basic b/debian/tests/basic deleted file mode 100755 index c8e3449..0000000 --- a/debian/tests/basic +++ /dev/null @@ -1,21 +0,0 @@ -#!/usr/bin/perl -# vim:set sw=4 sts=4 et ft=perl: - -use strict; -use warnings; -use Test::More; -use IPC::Run qw(run); - -sub run_ok { - my $argv = shift; - my $debug = join(' ', @$argv); - ok(run($argv, @_), qq{"$debug" should succeed}); -} - -my $out; -run_ok([qw(bwrap --ro-bind / / /usr/bin/id -u)], '<', \undef, '>', \$out); -is($out, `id -u`); -run_ok([qw(bwrap --ro-bind / / /usr/bin/id -g)], '<', \undef, '>', \$out); -is($out, `id -g`); - -done_testing; diff --git a/debian/tests/control b/debian/tests/control deleted file mode 100644 index a64434e..0000000 --- a/debian/tests/control +++ /dev/null @@ -1,36 +0,0 @@ -Tests: - basic - dev - net - upstream - userns -Restrictions: allow-stderr, isolation-machine -Depends: - bubblewrap, - iproute2:native, - libcap2-bin:native, - libipc-run-perl:native, - perl:native, - python3:native, - -Tests: upstream-usrmerge -Restrictions: allow-stderr, isolation-machine, breaks-testbed -Depends: - bubblewrap, - iproute2:native, - libcap2-bin:native, - libipc-run-perl:native, - perl:native, - python3:native, - usrmerge - -Tests: - upstream-as-root -Restrictions: allow-stderr, isolation-machine, needs-root -Depends: - bubblewrap, - iproute2:native, - libcap2-bin:native, - libipc-run-perl:native, - perl:native, - python3:native, diff --git a/debian/tests/dev b/debian/tests/dev deleted file mode 100755 index ed797b1..0000000 --- a/debian/tests/dev +++ /dev/null @@ -1,40 +0,0 @@ -#!/usr/bin/perl -# vim:set sw=4 sts=4 et ft=perl: - -use strict; -use warnings; -use Test::More; -use IPC::Run qw(run); - -sub run_ok { - my $argv = shift; - my $debug = join(' ', @$argv); - ok(run($argv, @_), qq{"$debug" should succeed}); -} - -my $out; -run_ok([qw(bwrap --ro-bind / / --dev /dev //bin/sh -c), "echo /dev/*"], - '<', \undef, '>', \$out); -like($out, qr{(^| )/dev/full( |$)}); -like($out, qr{(^| )/dev/null( |$)}); -like($out, qr{(^| )/dev/pts( |$)}); -like($out, qr{(^| )/dev/random( |$)}); -like($out, qr{(^| )/dev/shm( |$)}); -like($out, qr{(^| )/dev/stderr( |$)}); -like($out, qr{(^| )/dev/stdin( |$)}); -like($out, qr{(^| )/dev/stdout( |$)}); -like($out, qr{(^| )/dev/tty( |$)}); -like($out, qr{(^| )/dev/urandom( |$)}); -like($out, qr{(^| )/dev/zero( |$)}); -unlike($out, qr{(^| )/dev/hda( |$)}); -unlike($out, qr{(^| )/dev/dsp( |$)}); -unlike($out, qr{(^| )/dev/fuse( |$)}); -unlike($out, qr{(^| )/dev/kmsg( |$)}); -unlike($out, qr{(^| )/dev/loop0( |$)}); -unlike($out, qr{(^| )/dev/mem( |$)}); -unlike($out, qr{(^| )/dev/sda( |$)}); -unlike($out, qr{(^| )/dev/snd( |$)}); -unlike($out, qr{(^| )/dev/tty1( |$)}); -unlike($out, qr{(^| )/dev/vda( |$)}); - -done_testing; diff --git a/debian/tests/net b/debian/tests/net deleted file mode 100755 index c16fd78..0000000 --- a/debian/tests/net +++ /dev/null @@ -1,24 +0,0 @@ -#!/usr/bin/perl -# vim:set sw=4 sts=4 et ft=perl: - -use strict; -use warnings; -use Test::More; -use IPC::Run qw(run); - -sub run_ok { - my $argv = shift; - my $debug = join(' ', @$argv); - ok(run($argv, @_), qq{"$debug" should succeed}); -} - -my $out; -run_ok([qw(bwrap --ro-bind / / --unshare-net /bin/sh -c), "ip link ls"], - '<', \undef, '>', \$out); - -like($out, qr{^[0-9]+: lo:}); -unlike($out, qr{^[0-9]+: en[^:]*:}); -unlike($out, qr{^[0-9]+: eth[^:]*:}); -unlike($out, qr{^[0-9]+: wlan[^:]*:}); - -done_testing; diff --git a/debian/tests/upstream b/debian/tests/upstream deleted file mode 100755 index 1a7f399..0000000 --- a/debian/tests/upstream +++ /dev/null @@ -1,5 +0,0 @@ -#!/bin/sh - -set -e - -exec tests/test-run.sh diff --git a/debian/tests/upstream-as-root b/debian/tests/upstream-as-root deleted file mode 100755 index 1a7f399..0000000 --- a/debian/tests/upstream-as-root +++ /dev/null @@ -1,5 +0,0 @@ -#!/bin/sh - -set -e - -exec tests/test-run.sh diff --git a/debian/tests/upstream-usrmerge b/debian/tests/upstream-usrmerge deleted file mode 120000 index 2a767e2..0000000 --- a/debian/tests/upstream-usrmerge +++ /dev/null @@ -1 +0,0 @@ -upstream \ No newline at end of file diff --git a/debian/tests/userns b/debian/tests/userns deleted file mode 100755 index 143772a..0000000 --- a/debian/tests/userns +++ /dev/null @@ -1,42 +0,0 @@ -#!/usr/bin/perl -# vim:set sw=4 sts=4 et ft=perl: - -use strict; -use warnings; -use Test::More; -use IPC::Run qw(run); - -sub run_ok { - my $argv = shift; - my $debug = join(' ', @$argv); - ok(run($argv, @_), qq{"$debug" should succeed}); -} - -my $out; - -diag("Unshare user ID"); -run_ok([qw(bwrap --ro-bind / / --unshare-user --uid 2 --gid 3 /usr/bin/id -u)], - '<', \undef, '>', \$out); -is($out, "2\n"); -run_ok([qw(bwrap --ro-bind / / --unshare-user --uid 2 --gid 3 /usr/bin/id -g)], - '<', \undef, '>', \$out); -is($out, "3\n"); -run_ok([qw(bwrap --ro-bind / / --unshare-user --uid 2 --gid 3 /bin/sh -c), - 'ls -l /etc/passwd'], - '<', \undef, '>', \$out); -like($out, qr{ nobody nogroup }); - -diag("Combine new /dev with new user namespace (#71)"); -run_ok([qw(bwrap --ro-bind / / --unshare-user --uid 2 --gid 3 --dev /dev /bin/sh -c), - 'echo /dev/*'], - '<', \undef, '>', \$out); -like($out, qr{(^| )/dev/full( |$)}); -unlike($out, qr{(^| )/dev/tty1( |$)}); -run_ok([qw(bwrap --ro-bind / / --unshare-user --uid 2 --gid 3 --dev /dev /usr/bin/id -u)], - '<', \undef, '>', \$out); -is($out, "2\n"); -run_ok([qw(bwrap --ro-bind / / --unshare-user --uid 2 --gid 3 --dev /dev /usr/bin/id -g)], - '<', \undef, '>', \$out); -is($out, "3\n"); - -done_testing; diff --git a/debian/upstream/metadata b/debian/upstream/metadata deleted file mode 100644 index 903a8af..0000000 --- a/debian/upstream/metadata +++ /dev/null @@ -1,8 +0,0 @@ ---- -Name: Bubblewrap -Repository: https://github.com/projectatomic/bubblewrap -Repository-Browse: https://github.com/projectatomic/bubblewrap -Bug-Database: https://github.com/projectatomic/bubblewrap/issues -Bug-Submit: https://github.com/projectatomic/bubblewrap/issues/new -... -# vim:set ft=yaml: diff --git a/debian/watch b/debian/watch deleted file mode 100644 index 6cc1827..0000000 --- a/debian/watch +++ /dev/null @@ -1,3 +0,0 @@ -version=4 -opts="compression=xz,dversionmangle=s/\+(?:git)?[0-9]*\+g[0-9a-f]*//" \ -https://github.com/projectatomic/@PACKAGE@/releases .*/@PACKAGE@-@ANY_VERSION@@ARCHIVE_EXT@ diff --git a/demos/flatpak-run.sh b/demos/flatpak-run.sh index 0594195..9149310 100755 --- a/demos/flatpak-run.sh +++ b/demos/flatpak-run.sh @@ -1,4 +1,4 @@ -#!/bin/bash +#!/usr/bin/env bash # For this to work you first have to run these commands: # curl -O http://sdk.gnome.org/nightly/keys/nightly.gpg # flatpak --user remote-add --gpg-key=nightly.gpg gnome-nightly http://sdk.gnome.org/nightly/repo/ diff --git a/demos/userns-block-fd.py b/demos/userns-block-fd.py index 2ef2fd6..37a40f2 100755 --- a/demos/userns-block-fd.py +++ b/demos/userns-block-fd.py @@ -24,9 +24,8 @@ else: os.close(pipe_info[0]) os.close(userns_block[1]) - if sys.version_info >= (3, 4): - os.set_inheritable(pipe_info[1], True) - os.set_inheritable(userns_block[0], True) + os.set_inheritable(pipe_info[1], True) + os.set_inheritable(userns_block[0], True) args = ["bwrap", "bwrap", diff --git a/git.mk b/git.mk new file mode 100644 index 0000000..0a73115 --- /dev/null +++ b/git.mk @@ -0,0 +1,348 @@ +# git.mk, a small Makefile to autogenerate .gitignore files +# for autotools-based projects. +# +# Copyright 2009, Red Hat, Inc. +# Copyright 2010,2011,2012,2013 Behdad Esfahbod +# Written by Behdad Esfahbod +# +# Copying and distribution of this file, with or without modification, +# is permitted in any medium without royalty provided the copyright +# notice and this notice are preserved. +# +# The latest version of this file can be downloaded from: +GIT_MK_URL = https://raw.githubusercontent.com/behdad/git.mk/master/git.mk +# +# Bugs, etc, should be reported upstream at: +# https://github.com/behdad/git.mk +# +# To use in your project, import this file in your git repo's toplevel, +# then do "make -f git.mk". This modifies all Makefile.am files in +# your project to -include git.mk. Remember to add that line to new +# Makefile.am files you create in your project, or just rerun the +# "make -f git.mk". +# +# This enables automatic .gitignore generation. If you need to ignore +# more files, add them to the GITIGNOREFILES variable in your Makefile.am. +# But think twice before doing that. If a file has to be in .gitignore, +# chances are very high that it's a generated file and should be in one +# of MOSTLYCLEANFILES, CLEANFILES, DISTCLEANFILES, or MAINTAINERCLEANFILES. +# +# The only case that you need to manually add a file to GITIGNOREFILES is +# when remove files in one of mostlyclean-local, clean-local, distclean-local, +# or maintainer-clean-local make targets. +# +# Note that for files like editor backup, etc, there are better places to +# ignore them. See "man gitignore". +# +# If "make maintainer-clean" removes the files but they are not recognized +# by this script (that is, if "git status" shows untracked files still), send +# me the output of "git status" as well as your Makefile.am and Makefile for +# the directories involved and I'll diagnose. +# +# For a list of toplevel files that should be in MAINTAINERCLEANFILES, see +# Makefile.am.sample in the git.mk git repo. +# +# Don't EXTRA_DIST this file. It is supposed to only live in git clones, +# not tarballs. It serves no useful purpose in tarballs and clutters the +# build dir. +# +# This file knows how to handle autoconf, automake, libtool, gtk-doc, +# gnome-doc-utils, yelp.m4, mallard, intltool, gsettings, dejagnu, appdata, +# appstream. +# +# This makefile provides the following targets: +# +# - all: "make all" will build all gitignore files. +# - gitignore: makes all gitignore files in the current dir and subdirs. +# - .gitignore: make gitignore file for the current dir. +# - gitignore-recurse: makes all gitignore files in the subdirs. +# +# KNOWN ISSUES: +# +# - Recursive configure doesn't work as $(top_srcdir)/git.mk inside the +# submodule doesn't find us. If you have configure.{in,ac} files in +# subdirs, add a proxy git.mk file in those dirs that simply does: +# "include $(top_srcdir)/../git.mk". Add more ..'s to your taste. +# And add those files to git. See vte/gnome-pty-helper/git.mk for +# example. +# + + + +############################################################################### +# Variables user modules may want to add to toplevel MAINTAINERCLEANFILES: +############################################################################### + +# +# Most autotools-using modules should be fine including this variable in their +# toplevel MAINTAINERCLEANFILES: +GITIGNORE_MAINTAINERCLEANFILES_TOPLEVEL = \ + $(srcdir)/aclocal.m4 \ + $(srcdir)/autoscan.log \ + $(srcdir)/configure.scan \ + `AUX_DIR=$(srcdir)/$$(cd $(top_srcdir); $(AUTOCONF) --trace 'AC_CONFIG_AUX_DIR:$$1' ./configure.ac); \ + test "x$$AUX_DIR" = "x$(srcdir)/" && AUX_DIR=$(srcdir); \ + for x in \ + ar-lib \ + compile \ + config.guess \ + config.sub \ + depcomp \ + install-sh \ + ltmain.sh \ + missing \ + mkinstalldirs \ + test-driver \ + ylwrap \ + ; do echo "$$AUX_DIR/$$x"; done` \ + `cd $(top_srcdir); $(AUTOCONF) --trace 'AC_CONFIG_HEADERS:$$1' ./configure.ac | \ + head -n 1 | while read f; do echo "$(srcdir)/$$f.in"; done` +# +# All modules should also be fine including the following variable, which +# removes automake-generated Makefile.in files: +GITIGNORE_MAINTAINERCLEANFILES_MAKEFILE_IN = \ + `cd $(top_srcdir); $(AUTOCONF) --trace 'AC_CONFIG_FILES:$$1' ./configure.ac | \ + while read f; do \ + case $$f in Makefile|*/Makefile) \ + test -f "$(srcdir)/$$f.am" && echo "$(srcdir)/$$f.in";; esac; \ + done` +# +# Modules that use libtool and use AC_CONFIG_MACRO_DIR() may also include this, +# though it's harmless to include regardless. +GITIGNORE_MAINTAINERCLEANFILES_M4_LIBTOOL = \ + `MACRO_DIR=$(srcdir)/$$(cd $(top_srcdir); $(AUTOCONF) --trace 'AC_CONFIG_MACRO_DIR:$$1' ./configure.ac); \ + if test "x$$MACRO_DIR" != "x$(srcdir)/"; then \ + for x in \ + libtool.m4 \ + ltoptions.m4 \ + ltsugar.m4 \ + ltversion.m4 \ + lt~obsolete.m4 \ + ; do echo "$$MACRO_DIR/$$x"; done; \ + fi` + + + +############################################################################### +# Default rule is to install ourselves in all Makefile.am files: +############################################################################### + +git-all: git-mk-install + +git-mk-install: + @echo "Installing git makefile" + @any_failed=; \ + find "`test -z "$(top_srcdir)" && echo . || echo "$(top_srcdir)"`" -name Makefile.am | while read x; do \ + if grep 'include .*/git.mk' $$x >/dev/null; then \ + echo "$$x already includes git.mk"; \ + else \ + failed=; \ + echo "Updating $$x"; \ + { cat $$x; \ + echo ''; \ + echo '-include $$(top_srcdir)/git.mk'; \ + } > $$x.tmp || failed=1; \ + if test x$$failed = x; then \ + mv $$x.tmp $$x || failed=1; \ + fi; \ + if test x$$failed = x; then : else \ + echo "Failed updating $$x"; >&2 \ + any_failed=1; \ + fi; \ + fi; done; test -z "$$any_failed" + +git-mk-update: + wget $(GIT_MK_URL) -O $(top_srcdir)/git.mk + +.PHONY: git-all git-mk-install git-mk-update + + + +############################################################################### +# Actual .gitignore generation: +############################################################################### + +$(srcdir)/.gitignore: Makefile.am $(top_srcdir)/git.mk + @echo "git.mk: Generating $@" + @{ \ + if test "x$(DOC_MODULE)" = x -o "x$(DOC_MAIN_SGML_FILE)" = x; then :; else \ + for x in \ + $(DOC_MODULE)-decl-list.txt \ + $(DOC_MODULE)-decl.txt \ + tmpl/$(DOC_MODULE)-unused.sgml \ + "tmpl/*.bak" \ + $(REPORT_FILES) \ + $(DOC_MODULE).pdf \ + xml html \ + ; do echo "/$$x"; done; \ + FLAVOR=$$(cd $(top_srcdir); $(AUTOCONF) --trace 'GTK_DOC_CHECK:$$2' ./configure.ac); \ + case $$FLAVOR in *no-tmpl*) echo /tmpl;; esac; \ + if echo "$(SCAN_OPTIONS)" | grep -q "\-\-rebuild-types"; then \ + echo "/$(DOC_MODULE).types"; \ + fi; \ + if echo "$(SCAN_OPTIONS)" | grep -q "\-\-rebuild-sections"; then \ + echo "/$(DOC_MODULE)-sections.txt"; \ + fi; \ + if test "$(abs_srcdir)" != "$(abs_builddir)" ; then \ + for x in \ + $(SETUP_FILES) \ + $(DOC_MODULE).types \ + ; do echo "/$$x"; done; \ + fi; \ + fi; \ + if test "x$(DOC_MODULE)$(DOC_ID)" = x -o "x$(DOC_LINGUAS)" = x; then :; else \ + for lc in $(DOC_LINGUAS); do \ + for x in \ + $(if $(DOC_MODULE),$(DOC_MODULE).xml) \ + $(DOC_PAGES) \ + $(DOC_INCLUDES) \ + ; do echo "/$$lc/$$x"; done; \ + done; \ + for x in \ + $(_DOC_OMF_ALL) \ + $(_DOC_DSK_ALL) \ + $(_DOC_HTML_ALL) \ + $(_DOC_MOFILES) \ + $(DOC_H_FILE) \ + "*/.xml2po.mo" \ + "*/*.omf.out" \ + ; do echo /$$x; done; \ + fi; \ + if test "x$(HELP_ID)" = x -o "x$(HELP_LINGUAS)" = x; then :; else \ + for lc in $(HELP_LINGUAS); do \ + for x in \ + $(HELP_FILES) \ + "$$lc.stamp" \ + "$$lc.mo" \ + ; do echo "/$$lc/$$x"; done; \ + done; \ + fi; \ + if test "x$(gsettings_SCHEMAS)" = x; then :; else \ + for x in \ + $(gsettings_SCHEMAS:.xml=.valid) \ + $(gsettings__enum_file) \ + ; do echo "/$$x"; done; \ + fi; \ + if test "x$(appdata_XML)" = x; then :; else \ + for x in \ + $(appdata_XML:.xml=.valid) \ + ; do echo "/$$x"; done; \ + fi; \ + if test "x$(appstream_XML)" = x; then :; else \ + for x in \ + $(appstream_XML:.xml=.valid) \ + ; do echo "/$$x"; done; \ + fi; \ + if test -f $(srcdir)/po/Makefile.in.in; then \ + for x in \ + po/Makefile.in.in \ + po/Makefile.in.in~ \ + po/Makefile.in \ + po/Makefile \ + po/Makevars.template \ + po/POTFILES \ + po/Rules-quot \ + po/stamp-it \ + po/stamp-po \ + po/.intltool-merge-cache \ + "po/*.gmo" \ + "po/*.header" \ + "po/*.mo" \ + "po/*.sed" \ + "po/*.sin" \ + po/$(GETTEXT_PACKAGE).pot \ + intltool-extract.in \ + intltool-merge.in \ + intltool-update.in \ + ; do echo "/$$x"; done; \ + fi; \ + if test -f $(srcdir)/configure; then \ + for x in \ + autom4te.cache \ + configure \ + config.h \ + stamp-h1 \ + libtool \ + config.lt \ + ; do echo "/$$x"; done; \ + fi; \ + if test "x$(DEJATOOL)" = x; then :; else \ + for x in \ + $(DEJATOOL) \ + ; do echo "/$$x.sum"; echo "/$$x.log"; done; \ + echo /site.exp; \ + fi; \ + if test "x$(am__dirstamp)" = x; then :; else \ + echo "$(am__dirstamp)"; \ + fi; \ + if test "x$(LTCOMPILE)" = x -a "x$(LTCXXCOMPILE)" = x -a "x$(GTKDOC_RUN)" = x; then :; else \ + for x in \ + "*.lo" \ + ".libs" "_libs" \ + ; do echo "$$x"; done; \ + fi; \ + for x in \ + .gitignore \ + $(GITIGNOREFILES) \ + $(CLEANFILES) \ + $(PROGRAMS) $(check_PROGRAMS) $(EXTRA_PROGRAMS) \ + $(LIBRARIES) $(check_LIBRARIES) $(EXTRA_LIBRARIES) \ + $(LTLIBRARIES) $(check_LTLIBRARIES) $(EXTRA_LTLIBRARIES) \ + so_locations \ + $(MOSTLYCLEANFILES) \ + $(TEST_LOGS) \ + $(TEST_LOGS:.log=.trs) \ + $(TEST_SUITE_LOG) \ + $(TESTS:=.test) \ + "*.gcda" \ + "*.gcno" \ + $(DISTCLEANFILES) \ + $(am__CONFIG_DISTCLEAN_FILES) \ + $(CONFIG_CLEAN_FILES) \ + TAGS ID GTAGS GRTAGS GSYMS GPATH tags \ + "*.tab.c" \ + $(MAINTAINERCLEANFILES) \ + $(BUILT_SOURCES) \ + $(patsubst %.vala,%.c,$(filter %.vala,$(SOURCES))) \ + $(filter %_vala.stamp,$(DIST_COMMON)) \ + $(filter %.vapi,$(DIST_COMMON)) \ + $(filter $(addprefix %,$(notdir $(patsubst %.vapi,%.h,$(filter %.vapi,$(DIST_COMMON))))),$(DIST_COMMON)) \ + Makefile \ + Makefile.in \ + "*.orig" \ + "*.rej" \ + "*.bak" \ + "*~" \ + ".*.sw[nop]" \ + ".dirstamp" \ + ; do echo "/$$x"; done; \ + for x in \ + "*.$(OBJEXT)" \ + $(DEPDIR) \ + ; do echo "$$x"; done; \ + } | \ + sed "s@^/`echo "$(srcdir)" | sed 's/\(.\)/[\1]/g'`/@/@" | \ + sed 's@/[.]/@/@g' | \ + LC_ALL=C sort | uniq > $@.tmp && \ + mv $@.tmp $@; + +all: $(srcdir)/.gitignore gitignore-recurse-maybe +gitignore: $(srcdir)/.gitignore gitignore-recurse + +gitignore-recurse-maybe: + @for subdir in $(DIST_SUBDIRS); do \ + case " $(SUBDIRS) " in \ + *" $$subdir "*) :;; \ + *) test "$$subdir" = . -o -e "$$subdir/.git" || (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) gitignore || echo "Skipping $$subdir");; \ + esac; \ + done +gitignore-recurse: + @for subdir in $(DIST_SUBDIRS); do \ + test "$$subdir" = . -o -e "$$subdir/.git" || (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) gitignore || echo "Skipping $$subdir"); \ + done + +maintainer-clean: gitignore-clean +gitignore-clean: + -rm -f $(srcdir)/.gitignore + +.PHONY: gitignore-clean gitignore gitignore-recurse gitignore-recurse-maybe diff --git a/meson.build b/meson.build new file mode 100644 index 0000000..72257af --- /dev/null +++ b/meson.build @@ -0,0 +1,171 @@ +project( + 'bubblewrap', + 'c', + version : '0.9.0', + meson_version : '>=0.49.0', + default_options : [ + 'warning_level=2', + ], +) + +cc = meson.get_compiler('c') +add_project_arguments('-D_GNU_SOURCE', language : 'c') +common_include_directories = include_directories('.') + +# Keep this in sync with ostree, except remove -Wall (part of Meson +# warning_level 2) and -Werror=declaration-after-statement +add_project_arguments( + cc.get_supported_arguments([ + '-Werror=shadow', + '-Werror=empty-body', + '-Werror=strict-prototypes', + '-Werror=missing-prototypes', + '-Werror=implicit-function-declaration', + '-Werror=pointer-arith', + '-Werror=init-self', + '-Werror=missing-declarations', + '-Werror=return-type', + '-Werror=overflow', + '-Werror=int-conversion', + '-Werror=parenthesis', + '-Werror=incompatible-pointer-types', + '-Werror=misleading-indentation', + '-Werror=missing-include-dirs', + '-Werror=aggregate-return', + + # Extra warnings specific to bubblewrap + '-Werror=switch-default', + '-Wswitch-enum', + + # Deliberately not warning about these, ability to zero-initialize + # a struct is a feature + '-Wno-missing-field-initializers', + '-Wno-error=missing-field-initializers', + ]), + language : 'c', +) + +if ( + cc.has_argument('-Werror=format=2') + and cc.has_argument('-Werror=format-security') + and cc.has_argument('-Werror=format-nonliteral') +) + add_project_arguments([ + '-Werror=format=2', + '-Werror=format-security', + '-Werror=format-nonliteral', + ], language : 'c') +endif + +bash = find_program('bash', required : false) + +if get_option('python') == '' + python = find_program('python3') +else + python = find_program(get_option('python')) +endif + +libcap_dep = dependency('libcap', required : true) + +selinux_dep = dependency( + 'libselinux', + version : '>=2.1.9', + # if disabled, Meson will behave as though libselinux was not found + required : get_option('selinux'), +) + +cdata = configuration_data() +cdata.set_quoted( + 'PACKAGE_STRING', + '@0@ @1@'.format(meson.project_name(), meson.project_version()), +) + +if selinux_dep.found() + cdata.set('HAVE_SELINUX', 1) + if selinux_dep.version().version_compare('>=2.3') + cdata.set('HAVE_SELINUX_2_3', 1) + endif +endif + +if get_option('require_userns') + cdata.set('ENABLE_REQUIRE_USERNS', 1) +endif + +configure_file( + output : 'config.h', + configuration : cdata, +) + +if meson.is_subproject() and get_option('program_prefix') == '' + error('program_prefix option must be set when bwrap is a subproject') +endif + +if get_option('bwrapdir') != '' + bwrapdir = get_option('bwrapdir') +elif meson.is_subproject() + bwrapdir = get_option('libexecdir') +else + bwrapdir = get_option('bindir') +endif + +bwrap = executable( + get_option('program_prefix') + 'bwrap', + [ + 'bubblewrap.c', + 'bind-mount.c', + 'network.c', + 'utils.c', + ], + build_rpath : get_option('build_rpath'), + install : true, + install_dir : bwrapdir, + install_rpath : get_option('install_rpath'), + dependencies : [selinux_dep, libcap_dep], +) + +manpages_xsl = 'http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl' +xsltproc = find_program('xsltproc', required : get_option('man')) +build_man_page = false + +if xsltproc.found() and not meson.is_subproject() + if run_command([ + xsltproc, '--nonet', manpages_xsl, + ], check : false).returncode() == 0 + message('Docbook XSL found, man page enabled') + build_man_page = true + elif get_option('man').enabled() + error('Man page requested, but Docbook XSL stylesheets not found') + else + message('Docbook XSL not found, man page disabled automatically') + endif +endif + +if build_man_page + custom_target( + 'bwrap.1', + output : 'bwrap.1', + input : 'bwrap.xml', + command : [ + xsltproc, + '--nonet', + '--stringparam', 'man.output.quietly', '1', + '--stringparam', 'funcsynopsis.style', 'ansi', + '--stringparam', 'man.th.extra1.suppress', '1', + '--stringparam', 'man.authors.section.enabled', '0', + '--stringparam', 'man.copyright.section.enabled', '0', + '-o', '@OUTPUT@', + manpages_xsl, + '@INPUT@', + ], + install : true, + install_dir : get_option('mandir') / 'man1', + ) +endif + +if not meson.is_subproject() + subdir('completions') +endif + +if get_option('tests') + subdir('tests') +endif diff --git a/meson_options.txt b/meson_options.txt new file mode 100644 index 0000000..10a0a20 --- /dev/null +++ b/meson_options.txt @@ -0,0 +1,73 @@ +option( + 'bash_completion', + type : 'feature', + description : 'install bash completion script', + value : 'enabled', +) +option( + 'bash_completion_dir', + type : 'string', + description : 'install bash completion script in this directory', + value : '', +) +option( + 'bwrapdir', + type : 'string', + description : 'install bwrap in this directory [default: bindir, or libexecdir in subprojects]', +) +option( + 'build_rpath', + type : 'string', + description : 'set a RUNPATH or RPATH on the bwrap executable', +) +option( + 'install_rpath', + type : 'string', + description : 'set a RUNPATH or RPATH on the bwrap executable', +) +option( + 'man', + type : 'feature', + description : 'generate man pages', + value : 'auto', +) +option( + 'program_prefix', + type : 'string', + description : 'Prepend string to bwrap executable name, for use with subprojects', +) +option( + 'python', + type : 'string', + description : 'Path to Python 3, or empty to use python3', +) +option( + 'require_userns', + type : 'boolean', + description : 'require user namespaces by default when installed setuid', + value : 'false', +) +option( + 'selinux', + type : 'feature', + description : 'enable optional SELINUX support', + value : 'auto', +) +option( + 'tests', + type : 'boolean', + description : 'build tests', + value : 'true', +) +option( + 'zsh_completion', + type : 'feature', + description : 'install zsh completion script', + value : 'enabled', +) +option( + 'zsh_completion_dir', + type : 'string', + description : 'install zsh completion script in this directory', + value : '', +) diff --git a/network.c b/network.c index 208f4eb..f6d58a6 100644 --- a/network.c +++ b/network.c @@ -1,5 +1,6 @@ /* bubblewrap * Copyright (C) 2016 Alexander Larsson + * SPDX-License-Identifier: LGPL-2.0-or-later * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -61,8 +62,8 @@ rtnl_send_request (int rtnl_fd, } static int -rtnl_read_reply (int rtnl_fd, - int seq_nr) +rtnl_read_reply (int rtnl_fd, + unsigned int seq_nr) { char buffer[1024]; ssize_t received; @@ -79,7 +80,7 @@ rtnl_read_reply (int rtnl_fd, { if (rheader->nlmsg_seq != seq_nr) return -1; - if (rheader->nlmsg_pid != getpid ()) + if ((pid_t)rheader->nlmsg_pid != getpid ()) return -1; if (rheader->nlmsg_type == NLMSG_ERROR) { @@ -129,7 +130,7 @@ rtnl_setup_request (char *buffer, header->nlmsg_seq = counter++; header->nlmsg_pid = getpid (); - return (struct nlmsghdr *) header; + return header; } void diff --git a/network.h b/network.h index e5f4c76..3346b49 100644 --- a/network.h +++ b/network.h @@ -1,5 +1,6 @@ /* bubblewrap * Copyright (C) 2016 Alexander Larsson + * SPDX-License-Identifier: LGPL-2.0-or-later * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public diff --git a/packaging/bubblewrap.spec b/packaging/bubblewrap.spec index 083e4ac..0a8001f 100644 --- a/packaging/bubblewrap.spec +++ b/packaging/bubblewrap.spec @@ -46,4 +46,3 @@ find $RPM_BUILD_ROOT -name '*.la' -delete %{_bindir}/bwrap %endif %{_mandir}/man1/* - diff --git a/release-checklist.md b/release-checklist.md new file mode 100644 index 0000000..4385b09 --- /dev/null +++ b/release-checklist.md @@ -0,0 +1,18 @@ +bubblewrap release checklist +============================ + +* Collect release notes +* Update version number in `configure.ac` **and** `meson.build` +* Commit the changes +* `meson dist -C ${builddir}` +* Do any final smoke-testing, e.g. update a package, install and test it +* `git evtag sign v$VERSION` + * Include the release notes in the tag message +* `git push --atomic origin main v$VERSION` +* https://github.com/containers/bubblewrap/releases/new + * Fill in the new version's tag in the "Tag version" box + * Title: `$VERSION` + * Copy the release notes into the description + * Upload the tarball that you built with `meson dist` + * Get the `sha256sum` of the tarball and append it to the description + * `Publish release` diff --git a/tests/libtest-core.sh b/tests/libtest-core.sh index 0255b57..11df3a3 100644 --- a/tests/libtest-core.sh +++ b/tests/libtest-core.sh @@ -5,10 +5,13 @@ # # Known copies are in the following repos: # -# - https://github.com/projectatomic/rpm-ostree +# - https://github.com/containers/bubblewrap +# - https://github.com/coreos/rpm-ostree # # Copyright (C) 2017 Colin Walters # +# SPDX-License-Identifier: LGPL-2.0-or-later +# # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either @@ -33,13 +36,19 @@ assert_not_reached () { } # Some tests look for specific English strings. Use a UTF-8 version -# of the C (POSIX) locale if we have one, or fall back to POSIX +# of the C (POSIX) locale if we have one, or fall back to en_US.UTF-8 # (https://sourceware.org/glibc/wiki/Proposals/C.UTF-8) -if locale -a | grep C.UTF-8 >/dev/null; then - export LC_ALL=C.UTF-8 +# +# If we can't find the locale command assume we have support for C.UTF-8 +# (e.g. musl based systems) +if type -p locale >/dev/null; then + export LC_ALL=$(locale -a | grep -iEe '^(C|en_US)\.(UTF-8|utf8)$' | head -n1 || true) + if [ -z "${LC_ALL}" ]; then fatal "Can't find suitable UTF-8 locale"; fi else - export LC_ALL=C + export LC_ALL=C.UTF-8 fi +# A GNU extension, used whenever LC_ALL is not C +unset LANGUAGE # This should really be the default IMO export G_DEBUG=fatal-warnings @@ -119,10 +128,23 @@ assert_file_has_content () { done } +assert_file_has_content_once () { + fpath=$1 + shift + for re in "$@"; do + if ! test $(grep -e "$re" "$fpath" | wc -l) = "1"; then + _fatal_print_file "$fpath" "File '$fpath' doesn't match regexp '$re' exactly once" + fi + done +} + assert_file_has_content_literal () { - if ! grep -q -F -e "$2" "$1"; then - _fatal_print_file "$1" "File '$1' doesn't match fixed string list '$2'" - fi + fpath=$1; shift + for s in "$@"; do + if ! grep -q -F -e "$s" "$fpath"; then + _fatal_print_file "$fpath" "File '$fpath' doesn't match fixed string list '$s'" + fi + done } assert_file_has_mode () { @@ -159,6 +181,10 @@ skip() { exit 0 } -extract_child_pid() { - grep child-pid "$1" | sed "s/^.*: \([0-9]*\).*/\1/" +report_err () { + local exit_status="$?" + { { local BASH_XTRACEFD=3; } 2> /dev/null + echo "Unexpected nonzero exit status $exit_status while running: $BASH_COMMAND" >&2 + } 3> /dev/null } +trap report_err ERR diff --git a/tests/libtest.sh b/tests/libtest.sh new file mode 100644 index 0000000..d55bb02 --- /dev/null +++ b/tests/libtest.sh @@ -0,0 +1,115 @@ +# shellcheck shell=bash + +# Source library for shell script tests. +# Add non-bubblewrap-specific code to libtest-core.sh instead. +# +# Copyright (C) 2017 Colin Walters +# SPDX-License-Identifier: LGPL-2.0-or-later +# +# This library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2 of the License, or (at your option) any later version. +# +# This library is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with this library; if not, write to the +# Free Software Foundation, Inc., 59 Temple Place - Suite 330, +# Boston, MA 02111-1307, USA. + +set -e + +if [ -n "${G_TEST_SRCDIR:-}" ]; then + test_srcdir="${G_TEST_SRCDIR}/tests" +else + test_srcdir=$(dirname "$0") +fi + +if [ -n "${G_TEST_BUILDDIR:-}" ]; then + test_builddir="${G_TEST_BUILDDIR}/tests" +else + test_builddir=$(dirname "$0") +fi + +. "${test_srcdir}/libtest-core.sh" + +# Make sure /sbin/getpcaps etc. are in our PATH even if non-root +PATH="$PATH:/usr/sbin:/sbin" + +tempdir=$(mktemp -d /var/tmp/tap-test.XXXXXX) +touch "${tempdir}/.testtmp" +cleanup() { + if test -n "${TEST_SKIP_CLEANUP:-}"; then + echo "Skipping cleanup of ${tempdir}" + elif test -f "${tempdir}/.testtmp"; then + rm -rf "${tempdir}" + fi +} +trap cleanup EXIT +cd "${tempdir}" + +: "${BWRAP:=bwrap}" +if test -u "$(type -p ${BWRAP})"; then + bwrap_is_suid=true +fi + +FUSE_DIR= +for mp in $(grep " fuse[. ]" /proc/self/mounts | grep "user_id=$(id -u)" | awk '{print $2}'); do + if test -d "$mp"; then + echo "# Using $mp as test fuse mount" + FUSE_DIR="$mp" + break + fi +done + +if test "$(id -u)" = "0"; then + is_uidzero=true +else + is_uidzero=false +fi + +# This is supposed to be an otherwise readable file in an unreadable (by the user) dir +UNREADABLE=/root/.bashrc +if "${is_uidzero}" || test -x "$(dirname "$UNREADABLE")"; then + UNREADABLE= +fi + +# https://github.com/projectatomic/bubblewrap/issues/217 +# are we on a merged-/usr system? +if [ /lib -ef /usr/lib ]; then + BWRAP_RO_HOST_ARGS="--ro-bind /usr /usr + --ro-bind /etc /etc + --dir /var/tmp + --symlink usr/lib /lib + --symlink usr/lib64 /lib64 + --symlink usr/bin /bin + --symlink usr/sbin /sbin + --proc /proc + --dev /dev" +else + BWRAP_RO_HOST_ARGS="--ro-bind /usr /usr + --ro-bind /etc /etc + --ro-bind /bin /bin + --ro-bind-try /lib /lib + --ro-bind-try /lib64 /lib64 + --ro-bind-try /sbin /sbin + --ro-bind-try /nix/store /nix/store + --dir /var/tmp + --proc /proc + --dev /dev" +fi + +# Default arg, bind whole host fs to /, tmpfs on /tmp +RUN="${BWRAP} --bind / / --tmpfs /tmp" + +if [ -z "${BWRAP_MUST_WORK-}" ] && ! $RUN true; then + skip Seems like bwrap is not working at all. Maybe setuid is not working +fi + +extract_child_pid() { + grep child-pid "$1" | sed "s/^.*: \([0-9]*\).*/\1/" +} diff --git a/tests/meson.build b/tests/meson.build new file mode 100644 index 0000000..87bf709 --- /dev/null +++ b/tests/meson.build @@ -0,0 +1,72 @@ +test_programs = [ + ['test-utils', executable( + 'test-utils', + 'test-utils.c', + '../utils.c', + '../utils.h', + dependencies : [selinux_dep], + include_directories : common_include_directories, + )], +] + +executable( + 'try-syscall', + 'try-syscall.c', + override_options: ['b_sanitize=none'], +) + +test_scripts = [ + 'test-run.sh', + 'test-seccomp.py', + 'test-specifying-pidns.sh', + 'test-specifying-userns.sh', +] + +test_env = environment() +test_env.set('BWRAP', bwrap.full_path()) +test_env.set('G_TEST_BUILDDIR', meson.current_build_dir() / '..') +test_env.set('G_TEST_SRCDIR', meson.current_source_dir() / '..') + +foreach pair : test_programs + name = pair[0] + test_program = pair[1] + if meson.version().version_compare('>=0.50.0') + test( + name, + test_program, + env : test_env, + protocol : 'tap', + ) + else + test( + name, + test_program, + env : test_env, + ) + endif +endforeach + +foreach test_script : test_scripts + if test_script.endswith('.py') + interpreter = python + else + interpreter = bash + endif + + if meson.version().version_compare('>=0.50.0') + test( + test_script, + interpreter, + args : [files(test_script)], + env : test_env, + protocol : 'tap', + ) + else + test( + test_script, + interpreter, + args : [files(test_script)], + env : test_env, + ) + endif +endforeach diff --git a/tests/test-run.sh b/tests/test-run.sh index 95c77d8..6151f1a 100755 --- a/tests/test-run.sh +++ b/tests/test-run.sh @@ -1,106 +1,44 @@ -#!/bin/bash +#!/usr/bin/env bash set -xeuo pipefail -# Make sure /sbin/getpcaps etc. are in our PATH even if non-root -PATH="$PATH:/usr/sbin:/sbin" +srcd=$(cd $(dirname "$0") && pwd) -srcd=$(cd $(dirname $0) && pwd) +. ${srcd}/libtest.sh -. ${srcd}/libtest-core.sh +bn=$(basename "$0") -bn=$(basename $0) -tempdir=$(mktemp -d /var/tmp/tap-test.XXXXXX) -touch ${tempdir}/.testtmp -function cleanup () { - if test -n "${TEST_SKIP_CLEANUP:-}"; then - echo "Skipping cleanup of ${test_tmpdir}" - else if test -f ${tempdir}/.test; then - rm "${tempdir}" -rf - fi - fi +test_count=0 +ok () { + test_count=$((test_count + 1)) + echo ok $test_count "$@" +} +ok_skip () { + ok "# SKIP" "$@" +} +done_testing () { + echo "1..$test_count" } -trap cleanup EXIT -cd ${tempdir} - -: "${BWRAP:=bwrap}" -if test -u "$(type -p ${BWRAP})"; then - bwrap_is_suid=true -fi - -FUSE_DIR= -for mp in $(cat /proc/self/mounts | grep " fuse[. ]" | grep user_id=$(id -u) | awk '{print $2}'); do - if test -d $mp; then - echo Using $mp as test fuse mount - FUSE_DIR=$mp - break - fi -done - -if test "$(id -u)" = "0"; then - is_uidzero=true -else - is_uidzero=false -fi - -# This is supposed to be an otherwise readable file in an unreadable (by the user) dir -UNREADABLE=/root/.bashrc -if ${is_uidzero} || test -x `dirname $UNREADABLE`; then - UNREADABLE= -fi - -# https://github.com/projectatomic/bubblewrap/issues/217 -# are we on a merged-/usr system? -if [ /lib -ef /usr/lib ]; then - BWRAP_RO_HOST_ARGS="--ro-bind /usr /usr - --ro-bind /etc /etc - --dir /var/tmp - --symlink usr/lib /lib - --symlink usr/lib64 /lib64 - --symlink usr/bin /bin - --symlink usr/sbin /sbin - --proc /proc - --dev /dev" -else - BWRAP_RO_HOST_ARGS="--ro-bind /usr /usr - --ro-bind /etc /etc - --ro-bind /bin /bin - --ro-bind /lib /lib - --ro-bind-try /lib64 /lib64 - --ro-bind /sbin /sbin - --dir /var/tmp - --proc /proc - --dev /dev" -fi - -# Default arg, bind whole host fs to /, tmpfs on /tmp -RUN="${BWRAP} --bind / / --tmpfs /tmp" - -if ! $RUN true; then - skip Seems like bwrap is not working at all. Maybe setuid is not working -fi - -echo "1..49" # Test help ${BWRAP} --help > help.txt assert_file_has_content help.txt "usage: ${BWRAP}" -echo "ok - Help works" +ok "Help works" -for ALT in "" "--unshare-user-try" "--unshare-pid" "--unshare-user-try --unshare-pid"; do +for ALT in "" "--unshare-user-try" "--unshare-pid" "--unshare-user-try --unshare-pid"; do # Test fuse fs as bind source - if [ x$FUSE_DIR != x ]; then - $RUN $ALT --proc /proc --dev /dev --bind $FUSE_DIR /tmp/foo true - echo "ok - can bind-mount a FUSE directory with $ALT" + if [ "x$FUSE_DIR" != "x" ]; then + $RUN $ALT --proc /proc --dev /dev --bind $FUSE_DIR /tmp/foo true + ok "can bind-mount a FUSE directory with $ALT" else - echo "ok # SKIP no FUSE support" + ok_skip "no FUSE support" fi # no --dev => no devpts => no map_root workaround $RUN $ALT --proc /proc true - echo "ok - can mount /proc with $ALT" + ok "can mount /proc with $ALT" # No network $RUN $ALT --unshare-net --proc /proc --dev /dev true - echo "ok - can unshare network, create new /dev with $ALT" + ok "can unshare network, create new /dev with $ALT" # Unreadable file echo -n "expect EPERM: " >&2 @@ -111,34 +49,56 @@ for ALT in "" "--unshare-user-try" "--unshare-pid" "--unshare-user-try --unshar CAP="" fi - if ! ${is_uidzero} && $RUN $CAP $ALT --unshare-net --proc /proc --bind /etc/shadow /tmp/foo cat /etc/shadow; then + if ! cat /etc/shadow >/dev/null && + $RUN $CAP $ALT --unshare-net --proc /proc --bind /etc/shadow /tmp/foo cat /tmp/foo; then + assert_not_reached Could read /etc/shadow via /tmp/foo bind-mount + fi + + if ! cat /etc/shadow >/dev/null && + $RUN $CAP $ALT --unshare-net --proc /proc --bind /etc/shadow /tmp/foo cat /etc/shadow; then assert_not_reached Could read /etc/shadow fi - echo "ok - cannot read /etc/shadow with $ALT" + + ok "cannot read /etc/shadow with $ALT" # Unreadable dir - if [ x$UNREADABLE != x ]; then + if [ "x$UNREADABLE" != "x" ]; then echo -n "expect EPERM: " >&2 - if $RUN $ALT --unshare-net --proc /proc --dev /dev --bind $UNREADABLE /tmp/foo cat /tmp/foo ; then + if $RUN $ALT --unshare-net --proc /proc --dev /dev --bind $UNREADABLE /tmp/foo cat /tmp/foo; then assert_not_reached Could read $UNREADABLE fi - echo "ok - cannot read $UNREADABLE with $ALT" + ok "cannot read $UNREADABLE with $ALT" else - echo "ok # SKIP not sure what unreadable file to use" + ok_skip "not sure what unreadable file to use" fi # bind dest in symlink (https://github.com/projectatomic/bubblewrap/pull/119) $RUN $ALT --dir /tmp/dir --symlink dir /tmp/link --bind /etc /tmp/link true - echo "ok - can bind a destination over a symlink" + ok "can bind a destination over a symlink" done +# Test symlink behaviour +rm -f ./symlink +$RUN --ro-bind / / --bind "$(pwd)" "$(pwd)" --symlink /dev/null "$(pwd)/symlink" true >&2 +readlink ./symlink > target.txt +assert_file_has_content target.txt /dev/null +ok "--symlink works" +$RUN --ro-bind / / --bind "$(pwd)" "$(pwd)" --symlink /dev/null "$(pwd)/symlink" true >&2 +ok "--symlink is idempotent" +if $RUN --ro-bind / / --bind "$(pwd)" "$(pwd)" --symlink /dev/full "$(pwd)/symlink" true 2>err.txt; then + fatal "creating a conflicting symlink should have failed" +else + assert_file_has_content err.txt "Can't make symlink .*: existing destination is /dev/null" +fi +ok "--symlink doesn't overwrite a conflicting symlink" + # Test devices $RUN --unshare-pid --dev /dev ls -al /dev/{stdin,stdout,stderr,null,random,urandom,fd,core} >/dev/null -echo "ok - all expected devices were created" +ok "all expected devices were created" # Test --as-pid-1 $RUN --unshare-pid --as-pid-1 --bind / / bash -c 'echo $$' > as_pid_1.txt assert_file_has_content as_pid_1.txt "1" -echo "ok - can run as pid 1" +ok "can run as pid 1" # Test --info-fd and --json-status-fd if $RUN --unshare-all --info-fd 42 --json-status-fd 43 -- bash -c 'exit 42' 42>info.json 43>json-status.json 2>err.txt; then @@ -147,7 +107,7 @@ fi assert_file_has_content info.json '"child-pid": [0-9]' assert_file_has_content json-status.json '"child-pid": [0-9]' assert_file_has_content_literal json-status.json '"exit-code": 42' -echo "ok info and json-status fd" +ok "info and json-status fd" DATA=$($RUN --proc /proc --unshare-all --info-fd 42 --json-status-fd 43 -- bash -c 'stat -L --format "%n %i" /proc/self/ns/*' 42>info.json 43>json-status.json 2>err.txt) @@ -158,58 +118,80 @@ for NS in "ipc" "mnt" "net" "pid" "uts"; do assert_file_has_content json-status.json "$want" done -echo "ok namespace id info in info and json-status fd" +ok "namespace id info in info and json-status fd" -if ! which strace 2>/dev/null || ! strace -h | grep -v -e default | grep -e fault; then - echo "ok - # SKIP no strace fault injection" +if ! command -v strace >/dev/null || ! strace -h | grep -v -e default | grep -e fault >/dev/null; then + ok_skip "no strace fault injection" else ! strace -o /dev/null -f -e trace=prctl -e fault=prctl:when=39 $RUN --die-with-parent --json-status-fd 42 true 42>json-status.json assert_not_file_has_content json-status.json '"exit-code": [0-9]' - echo "ok pre-exec failure doesn't include exit-code in json-status" + ok "pre-exec failure doesn't include exit-code in json-status" fi notanexecutable=/ $RUN --json-status-fd 42 $notanexecutable 42>json-status.json || true assert_not_file_has_content json-status.json '"exit-code": [0-9]' -echo "ok exec failure doesn't include exit-code in json-status" +ok "exec failure doesn't include exit-code in json-status" # These tests require --unshare-user if test -n "${bwrap_is_suid:-}"; then - echo "ok - # SKIP no --cap-add support" - echo "ok - # SKIP no --cap-add support" + ok_skip "no --cap-add support" + ok_skip "no --cap-add support" + ok_skip "no --disable-userns" else - BWRAP_RECURSE="$BWRAP --unshare-all --uid 0 --gid 0 --cap-add ALL --bind / / --bind /proc /proc" - $BWRAP_RECURSE -- $BWRAP --unshare-all --bind / / --bind /proc /proc echo hello > recursive_proc.txt - assert_file_has_content recursive_proc.txt "hello" - echo "ok - can mount /proc recursively" + BWRAP_RECURSE="$BWRAP --unshare-user --uid 0 --gid 0 --cap-add ALL --bind / / --bind /proc /proc" - $BWRAP_RECURSE -- $BWRAP --unshare-all ${BWRAP_RO_HOST_ARGS} findmnt > recursive-newroot.txt + # $BWRAP May be inaccessible due to the user namespace so use /proc/self/exe + $BWRAP_RECURSE -- /proc/self/exe --unshare-all --bind / / --bind /proc /proc echo hello > recursive_proc.txt + assert_file_has_content recursive_proc.txt "hello" + ok "can mount /proc recursively" + + $BWRAP_RECURSE -- /proc/self/exe --unshare-all ${BWRAP_RO_HOST_ARGS} findmnt > recursive-newroot.txt assert_file_has_content recursive-newroot.txt "/usr" - echo "ok - can pivot to new rootfs recursively" + ok "can pivot to new rootfs recursively" + + $BWRAP --dev-bind / / -- true + ! $BWRAP --assert-userns-disabled --dev-bind / / -- true + $BWRAP --unshare-user --disable-userns --dev-bind / / -- true + ! $BWRAP --unshare-user --disable-userns --dev-bind / / -- $BWRAP --dev-bind / / -- true + $BWRAP --unshare-user --disable-userns --dev-bind / / -- sh -c "echo 2 > /proc/sys/user/max_user_namespaces || true; ! $BWRAP --unshare-user --dev-bind / / -- true" + $BWRAP --unshare-user --disable-userns --dev-bind / / -- sh -c "echo 100 > /proc/sys/user/max_user_namespaces || true; ! $BWRAP --unshare-user --dev-bind / / -- true" + $BWRAP --unshare-user --disable-userns --dev-bind / / -- sh -c "! $BWRAP --unshare-user --dev-bind / / --assert-userns-disabled -- true" + + $BWRAP_RECURSE --dev-bind / / -- true + ! $BWRAP_RECURSE --assert-userns-disabled --dev-bind / / -- true + $BWRAP_RECURSE --unshare-user --disable-userns --dev-bind / / -- true + ! $BWRAP_RECURSE --unshare-user --disable-userns --dev-bind / / -- /proc/self/exe --dev-bind / / -- true + $BWRAP_RECURSE --unshare-user --disable-userns --dev-bind / / -- sh -c "echo 2 > /proc/sys/user/max_user_namespaces || true; ! $BWRAP --unshare-user --dev-bind / / -- true" + $BWRAP_RECURSE --unshare-user --disable-userns --dev-bind / / -- sh -c "echo 100 > /proc/sys/user/max_user_namespaces || true; ! $BWRAP --unshare-user --dev-bind / / -- true" + $BWRAP_RECURSE --unshare-user --disable-userns --dev-bind / / -- sh -c "! $BWRAP --unshare-user --dev-bind / / --assert-userns-disabled -- true" + + ok "can disable nested userns" fi # Test error prefixing -if $RUN --unshare-pid --bind /source-enoent /dest true 2>err.txt; then +if $RUN --unshare-pid --bind /source-enoent /dest true 2>err.txt; then assert_not_reached "bound nonexistent source" fi assert_file_has_content err.txt "^bwrap: Can't find source path.*source-enoent" -echo "ok error prefxing" +ok "error prefixing" if ! ${is_uidzero}; then # When invoked as non-root, check that by default we have no caps left for OPT in "" "--unshare-user-try --as-pid-1" "--unshare-user-try" "--as-pid-1"; do e=0 - $RUN $OPT --unshare-pid getpcaps 1 2> caps.test || e=$? + $RUN $OPT --unshare-pid getpcaps 1 >&2 2> caps.test || e=$? sed -e 's/^/# /' < caps.test >&2 test "$e" = 0 assert_not_file_has_content caps.test ': =.*cap' done - echo "ok - we have no caps as uid != 0" + ok "we have no caps as uid != 0" else - capsh --print > caps.orig + capsh --print | sed -e 's/no-new-privs=0/no-new-privs=1/' > caps.expected + for OPT in "" "--as-pid-1"; do $RUN $OPT --unshare-pid capsh --print >caps.test - diff -u caps.orig caps.test + diff -u caps.expected caps.test done # And test that we can drop all, as well as specific caps $RUN $OPT --cap-drop ALL --unshare-pid capsh --print >caps.test @@ -217,17 +199,17 @@ else # Check for dropping kill/fowner (we assume all uid 0 callers have this) # But we should still have net_bind_service for example $RUN $OPT --cap-drop CAP_KILL --cap-drop CAP_FOWNER --unshare-pid capsh --print >caps.test - # capsh's output format changed from v2.29 -> drops are now indicated with -eip - if grep 'Current: =.*+eip$' caps.test; then + # capsh's output format changed from v2.29 -> drops are now indicated with -eip + if grep 'Current: =.*+eip$' caps.test; then assert_not_file_has_content caps.test '^Current: =.*cap_kill.*+eip$' assert_not_file_has_content caps.test '^Current: =.*cap_fowner.*+eip$' assert_file_has_content caps.test '^Current: =.*cap_net_bind_service.*+eip$' - else + else assert_file_has_content caps.test '^Current: =eip.*cap_kill.*-eip$' assert_file_has_content caps.test '^Current: =eip.*cap_fowner.*-eip$' assert_not_file_has_content caps.test '^Current: =.*cap_net_bind_service.*-eip$' fi - echo "ok - we have the expected caps as uid 0" + ok "we have the expected caps as uid 0" fi # Test --die-with-parent @@ -255,7 +237,7 @@ for die_with_parent_argv in "--die-with-parent" "--die-with-parent --unshare-pid # We have to loop here, because bwrap doesn't wait for the lock if # another process is holding it. If we're unlucky, lockf-n.py will # be holding it. - /bin/bash -c "while true; do $RUN ${die_with_parent_argv} --lock-file $(pwd)/lock sleep 1h; done" & + bash -c "while true; do $RUN ${die_with_parent_argv} --lock-file $(pwd)/lock sleep 1h; done" & childshellpid=$! # Wait for lock to be taken (yes hacky) @@ -274,12 +256,14 @@ for die_with_parent_argv in "--die-with-parent" "--die-with-parent --unshare-pid kill -9 ${childshellpid} # Lock file should be unlocked ./lockf-n.py ./lock wait - echo "ok die with parent ${die_with_parent_argv}" + ok "die with parent ${die_with_parent_argv}" done printf '%s--dir\0/tmp/hello/world\0' '' > test.args -$RUN --args 3 test -d /tmp/hello/world 3 test.args2 +printf '%s--dir\0/tmp/hello/world3\0' '' > test.args3 +$RUN --args 3 --args 4 --args 5 /bin/sh -c 'test -d /tmp/hello/world && test -d /tmp/hello/world2 && test -d /tmp/hello/world3' 3 bin/--inadvisable-executable-name-- @@ -287,35 +271,35 @@ echo "echo hello" >> bin/--inadvisable-executable-name-- chmod +x bin/--inadvisable-executable-name-- PATH="${srcd}:$PATH" $RUN -- sh -c "echo hello" > stdout assert_file_has_content stdout hello -echo "ok - we can run with --" +ok "we can run with --" PATH="$(pwd)/bin:$PATH" $RUN -- --inadvisable-executable-name-- > stdout assert_file_has_content stdout hello -echo "ok - we can run an inadvisable executable name with --" +ok "we can run an inadvisable executable name with --" if $RUN -- --dev-bind /dev /dev sh -c 'echo should not have run'; then assert_not_reached "'--dev-bind' should have been interpreted as a (silly) executable name" fi -echo "ok - options like --dev-bind are defanged by --" +ok "options like --dev-bind are defanged by --" if command -v mktemp > /dev/null; then tempfile="$(mktemp /tmp/bwrap-test-XXXXXXXX)" echo "hello" > "$tempfile" $BWRAP --bind / / cat "$tempfile" > stdout assert_file_has_content stdout hello - echo "ok - bind-mount of / exposes real /tmp" + ok "bind-mount of / exposes real /tmp" $BWRAP --bind / / --bind /tmp /tmp cat "$tempfile" > stdout assert_file_has_content stdout hello - echo "ok - bind-mount of /tmp exposes real /tmp" - if [ -d /mnt ]; then + ok "bind-mount of /tmp exposes real /tmp" + if [ -d /mnt ] && [ ! -L /mnt ]; then $BWRAP --bind / / --bind /tmp /mnt cat "/mnt/${tempfile#/tmp/}" > stdout assert_file_has_content stdout hello - echo "ok - bind-mount of /tmp onto /mnt exposes real /tmp" + ok "bind-mount of /tmp onto /mnt exposes real /tmp" else - echo "ok - # SKIP /mnt does not exist" + ok_skip "/mnt does not exist or is a symlink" fi else - echo "ok - # SKIP mktemp not found" - echo "ok - # SKIP mktemp not found" - echo "ok - # SKIP mktemp not found" + ok_skip "mktemp not found" + ok_skip "mktemp not found" + ok_skip "mktemp not found" fi if $RUN test -d /tmp/oldroot; then @@ -334,7 +318,7 @@ fi if $BWRAP --bind / / --bind "$(pwd)" /tmp test -d /tmp/newroot; then assert_not_reached "/tmp/newroot should not be visible" fi -echo "ok - we can mount another directory onto /tmp" +ok "we can mount another directory onto /tmp" echo "hello" > input.$$ $RUN --bind "$(pwd)" /tmp/here cat /tmp/here/input.$$ > stdout @@ -345,42 +329,240 @@ fi if $RUN --bind "$(pwd)" /tmp/here test -d /tmp/newroot; then assert_not_reached "/tmp/newroot should not be visible" fi -echo "ok - we can mount another directory inside /tmp" +ok "we can mount another directory inside /tmp" -# These tests need user namespaces -if test -n "${bwrap_is_suid:-}"; then - echo "ok - # SKIP no setuid support for --unshare-user" - echo "ok - # SKIP no setuid support for --unshare-user" +touch some-file +mkdir -p some-dir +rm -fr new-dir-mountpoint +rm -fr new-file-mountpoint +$RUN \ + --bind "$(pwd -P)/some-dir" "$(pwd -P)/new-dir-mountpoint" \ + --bind "$(pwd -P)/some-file" "$(pwd -P)/new-file-mountpoint" \ + true +command stat -c '%a' new-dir-mountpoint > new-dir-permissions +assert_file_has_content new-dir-permissions 755 +command stat -c '%a' new-file-mountpoint > new-file-permissions +assert_file_has_content new-file-permissions 444 +ok "Files and directories created as mount points have expected permissions" + + +if [ -S /dev/log ]; then + $RUN --bind / / --bind "$(realpath /dev/log)" "$(realpath /dev/log)" true + ok "Can bind-mount a socket (/dev/log) onto a socket" else - mkfifo donepipe - - $RUN --info-fd 42 --unshare-user sh -c 'readlink /proc/self/ns/user > sandbox-userns; cat < donepipe' 42>info.json & - while ! test -f sandbox-userns; do sleep 1; done - SANDBOX1PID=$(extract_child_pid info.json) - - $RUN --userns 11 readlink /proc/self/ns/user > sandbox2-userns 11< /proc/$SANDBOX1PID/ns/user - echo foo > donepipe - - assert_files_equal sandbox-userns sandbox2-userns - - rm donepipe info.json sandbox-userns - - echo "ok - Test --userns" - - mkfifo donepipe - $RUN --info-fd 42 --unshare-user --unshare-pid sh -c 'readlink /proc/self/ns/pid > sandbox-pidns; cat < donepipe' 42>info.json & - while ! test -f sandbox-pidns; do sleep 1; done - SANDBOX1PID=$(extract_child_pid info.json) - - $RUN --userns 11 --pidns 12 readlink /proc/self/ns/pid > sandbox2-pidns 11< /proc/$SANDBOX1PID/ns/user 12< /proc/$SANDBOX1PID/ns/pid - echo foo > donepipe - - assert_files_equal sandbox-pidns sandbox2-pidns - - rm donepipe info.json sandbox-pidns - - echo "ok - Test --pidns" + ok_skip "- /dev/log is not a socket, cannot test bubblewrap#409" fi +mkdir -p dir-already-existed +chmod 0710 dir-already-existed +mkdir -p dir-already-existed2 +chmod 0754 dir-already-existed2 +rm -fr new-dir-default-perms +rm -fr new-dir-set-perms +$RUN \ + --perms 1741 --dir "$(pwd -P)/new-dir-set-perms" \ + --dir "$(pwd -P)/dir-already-existed" \ + --perms 0741 --dir "$(pwd -P)/dir-already-existed2" \ + --dir "$(pwd -P)/dir-chmod" \ + --chmod 1755 "$(pwd -P)/dir-chmod" \ + --dir "$(pwd -P)/new-dir-default-perms" \ + true +command stat -c '%a' new-dir-default-perms > new-dir-permissions +assert_file_has_content new-dir-permissions '^755$' +command stat -c '%a' new-dir-set-perms > new-dir-permissions +assert_file_has_content new-dir-permissions '^1741$' +command stat -c '%a' dir-already-existed > dir-permissions +assert_file_has_content dir-permissions '^710$' +command stat -c '%a' dir-already-existed2 > dir-permissions +assert_file_has_content dir-permissions '^754$' +command stat -c '%a' dir-chmod > dir-permissions +assert_file_has_content dir-permissions '^1755$' +ok "Directories created explicitly have expected permissions" -echo "ok - End of test" +rm -fr parent +rm -fr parent-of-1777 +rm -fr parent-of-0755 +rm -fr parent-of-0644 +rm -fr parent-of-0750 +rm -fr parent-of-0710 +rm -fr parent-of-0720 +rm -fr parent-of-0640 +rm -fr parent-of-0700 +rm -fr parent-of-0600 +rm -fr parent-of-0705 +rm -fr parent-of-0604 +rm -fr parent-of-0000 +$RUN \ + --dir "$(pwd -P)"/parent/dir \ + --perms 1777 --dir "$(pwd -P)"/parent-of-1777/dir \ + --perms 0755 --dir "$(pwd -P)"/parent-of-0755/dir \ + --perms 0644 --dir "$(pwd -P)"/parent-of-0644/dir \ + --perms 0750 --dir "$(pwd -P)"/parent-of-0750/dir \ + --perms 0710 --dir "$(pwd -P)"/parent-of-0710/dir \ + --perms 0720 --dir "$(pwd -P)"/parent-of-0720/dir \ + --perms 0640 --dir "$(pwd -P)"/parent-of-0640/dir \ + --perms 0700 --dir "$(pwd -P)"/parent-of-0700/dir \ + --perms 0600 --dir "$(pwd -P)"/parent-of-0600/dir \ + --perms 0705 --dir "$(pwd -P)"/parent-of-0705/dir \ + --perms 0604 --dir "$(pwd -P)"/parent-of-0604/dir \ + --perms 0000 --dir "$(pwd -P)"/parent-of-0000/dir \ + true +command stat -c '%a' parent > dir-permissions +assert_file_has_content dir-permissions '^755$' +command stat -c '%a' parent-of-1777 > dir-permissions +assert_file_has_content dir-permissions '^755$' +command stat -c '%a' parent-of-0755 > dir-permissions +assert_file_has_content dir-permissions '^755$' +command stat -c '%a' parent-of-0644 > dir-permissions +assert_file_has_content dir-permissions '^755$' +command stat -c '%a' parent-of-0750 > dir-permissions +assert_file_has_content dir-permissions '^750$' +command stat -c '%a' parent-of-0710 > dir-permissions +assert_file_has_content dir-permissions '^750$' +command stat -c '%a' parent-of-0720 > dir-permissions +assert_file_has_content dir-permissions '^750$' +command stat -c '%a' parent-of-0640 > dir-permissions +assert_file_has_content dir-permissions '^750$' +command stat -c '%a' parent-of-0700 > dir-permissions +assert_file_has_content dir-permissions '^700$' +command stat -c '%a' parent-of-0600 > dir-permissions +assert_file_has_content dir-permissions '^700$' +command stat -c '%a' parent-of-0705 > dir-permissions +assert_file_has_content dir-permissions '^705$' +command stat -c '%a' parent-of-0604 > dir-permissions +assert_file_has_content dir-permissions '^705$' +command stat -c '%a' parent-of-0000 > dir-permissions +assert_file_has_content dir-permissions '^700$' +chmod -R 0700 parent* +rm -fr parent* +ok "Directories created as parents have expected permissions" + +$RUN \ + --perms 01777 --tmpfs "$(pwd -P)" \ + cat /proc/self/mountinfo >&2 +$RUN \ + --perms 01777 --tmpfs "$(pwd -P)" \ + stat -c '%a' "$(pwd -P)" > dir-permissions +assert_file_has_content dir-permissions '^1777$' +$RUN \ + --tmpfs "$(pwd -P)" \ + stat -c '%a' "$(pwd -P)" > dir-permissions +assert_file_has_content dir-permissions '^755$' +ok "tmpfs has expected permissions" + +# 1048576 = 1 MiB +if test -n "${bwrap_is_suid:-}"; then + if $RUN --size 1048576 --tmpfs "$(pwd -P)" true; then + assert_not_reached "Should not allow --size --tmpfs when setuid" + fi + ok "--size --tmpfs is not allowed when setuid" +elif df --output=size --block-size=1K "$(pwd -P)" >/dev/null 2>/dev/null; then + $RUN \ + --size 1048576 --tmpfs "$(pwd -P)" \ + df --output=size --block-size=1K "$(pwd -P)" > dir-size + assert_file_has_content dir-size '^ *1024$' + $RUN \ + --size 1048576 --perms 01777 --tmpfs "$(pwd -P)" \ + stat -c '%a' "$(pwd -P)" > dir-permissions + assert_file_has_content dir-permissions '^1777$' + $RUN \ + --size 1048576 --perms 01777 --tmpfs "$(pwd -P)" \ + df --output=size --block-size=1K "$(pwd -P)" > dir-size + assert_file_has_content dir-size '^ *1024$' + $RUN \ + --perms 01777 --size 1048576 --tmpfs "$(pwd -P)" \ + stat -c '%a' "$(pwd -P)" > dir-permissions + assert_file_has_content dir-permissions '^1777$' + $RUN \ + --perms 01777 --size 1048576 --tmpfs "$(pwd -P)" \ + df --output=size --block-size=1K "$(pwd -P)" > dir-size + assert_file_has_content dir-size '^ *1024$' + ok "tmpfs has expected size" +else + $RUN --size 1048576 --tmpfs "$(pwd -P)" true + $RUN --perms 01777 --size 1048576 --tmpfs "$(pwd -P)" true + $RUN --size 1048576 --perms 01777 --tmpfs "$(pwd -P)" true + ok_skip "df is too old, cannot test --size --tmpfs fully" +fi + +$RUN \ + --file 0 /tmp/file \ + stat -c '%a' /tmp/file < /dev/null > file-permissions +assert_file_has_content file-permissions '^666$' +$RUN \ + --perms 0640 --file 0 /tmp/file \ + stat -c '%a' /tmp/file < /dev/null > file-permissions +assert_file_has_content file-permissions '^640$' +$RUN \ + --bind-data 0 /tmp/file \ + stat -c '%a' /tmp/file < /dev/null > file-permissions +assert_file_has_content file-permissions '^600$' +$RUN \ + --perms 0640 --bind-data 0 /tmp/file \ + stat -c '%a' /tmp/file < /dev/null > file-permissions +assert_file_has_content file-permissions '^640$' +$RUN \ + --ro-bind-data 0 /tmp/file \ + stat -c '%a' /tmp/file < /dev/null > file-permissions +assert_file_has_content file-permissions '^600$' +$RUN \ + --perms 0640 --ro-bind-data 0 /tmp/file \ + stat -c '%a' /tmp/file < /dev/null > file-permissions +assert_file_has_content file-permissions '^640$' +ok "files have expected permissions" + +if $RUN --size 0 --tmpfs /tmp/a true; then + assert_not_reached Zero tmpfs size allowed +fi +if $RUN --size 123bogus --tmpfs /tmp/a true; then + assert_not_reached Bogus tmpfs size allowed +fi +if $RUN --size '' --tmpfs /tmp/a true; then + assert_not_reached Empty tmpfs size allowed +fi +if $RUN --size -12345678 --tmpfs /tmp/a true; then + assert_not_reached Negative tmpfs size allowed +fi +if $RUN --size ' -12345678' --tmpfs /tmp/a true; then + assert_not_reached Negative tmpfs size with space allowed +fi +# This is 2^64 +if $RUN --size 18446744073709551616 --tmpfs /tmp/a true; then + assert_not_reached Overflowing tmpfs size allowed +fi +# This is 2^63 + 1; note that the current max size is SIZE_MAX/2 +if $RUN --size 9223372036854775809 --tmpfs /tmp/a true; then + assert_not_reached Too-large tmpfs size allowed +fi +ok "bogus tmpfs size not allowed" + +if $RUN --perms 0640 --perms 0640 --tmpfs /tmp/a true; then + assert_not_reached Multiple perms options allowed +fi +if $RUN --size 1048576 --size 1048576 --tmpfs /tmp/a true; then + assert_not_reached Multiple perms options allowed +fi +ok "--perms and --size only allowed once" + + +FOO= BAR=baz $RUN --setenv FOO bar sh -c 'echo "$FOO$BAR"' > stdout +assert_file_has_content stdout barbaz +FOO=wrong BAR=baz $RUN --setenv FOO bar sh -c 'echo "$FOO$BAR"' > stdout +assert_file_has_content stdout barbaz +FOO=wrong BAR=baz $RUN --unsetenv FOO sh -c 'printf "%s%s" "$FOO" "$BAR"' > stdout +printf baz > reference +assert_files_equal stdout reference +FOO=wrong BAR=wrong $RUN --clearenv /usr/bin/env > stdout +echo "PWD=$(pwd -P)" > reference +assert_files_equal stdout reference +ok "environment manipulation" + +$RUN sh -c 'echo $0' > stdout +assert_file_has_content stdout sh +$RUN --argv0 sh sh -c 'echo $0' > stdout +assert_file_has_content stdout sh +$RUN --argv0 right sh -c 'echo $0' > stdout +assert_file_has_content stdout right +ok "argv0 manipulation" + +done_testing diff --git a/tests/test-seccomp.py b/tests/test-seccomp.py new file mode 100755 index 0000000..3ce02ef --- /dev/null +++ b/tests/test-seccomp.py @@ -0,0 +1,635 @@ +#!/usr/bin/env python3 +# Copyright 2021 Simon McVittie +# SPDX-License-Identifier: LGPL-2.0-or-later + +import errno +import logging +import os +import subprocess +import sys +import tempfile +import termios +import unittest + +try: + import seccomp +except ImportError: + print('1..0 # SKIP cannot import seccomp Python module') + sys.exit(0) + + +# This is the @default set from systemd as of 2021-10-11 +DEFAULT_SET = set(''' +brk +cacheflush +clock_getres +clock_getres_time64 +clock_gettime +clock_gettime64 +clock_nanosleep +clock_nanosleep_time64 +execve +exit +exit_group +futex +futex_time64 +get_robust_list +get_thread_area +getegid +getegid32 +geteuid +geteuid32 +getgid +getgid32 +getgroups +getgroups32 +getpgid +getpgrp +getpid +getppid +getrandom +getresgid +getresgid32 +getresuid +getresuid32 +getrlimit +getsid +gettid +gettimeofday +getuid +getuid32 +membarrier +mmap +mmap2 +munmap +nanosleep +pause +prlimit64 +restart_syscall +rseq +rt_sigreturn +sched_getaffinity +sched_yield +set_robust_list +set_thread_area +set_tid_address +set_tls +sigreturn +time +ugetrlimit +'''.split()) + +# This is the @basic-io set from systemd +BASIC_IO_SET = set(''' +_llseek +close +close_range +dup +dup2 +dup3 +lseek +pread64 +preadv +preadv2 +pwrite64 +pwritev +pwritev2 +read +readv +write +writev +'''.split()) + +# This is the @filesystem-io set from systemd +FILESYSTEM_SET = set(''' +access +chdir +chmod +close +creat +faccessat +faccessat2 +fallocate +fchdir +fchmod +fchmodat +fcntl +fcntl64 +fgetxattr +flistxattr +fremovexattr +fsetxattr +fstat +fstat64 +fstatat64 +fstatfs +fstatfs64 +ftruncate +ftruncate64 +futimesat +getcwd +getdents +getdents64 +getxattr +inotify_add_watch +inotify_init +inotify_init1 +inotify_rm_watch +lgetxattr +link +linkat +listxattr +llistxattr +lremovexattr +lsetxattr +lstat +lstat64 +mkdir +mkdirat +mknod +mknodat +newfstatat +oldfstat +oldlstat +oldstat +open +openat +openat2 +readlink +readlinkat +removexattr +rename +renameat +renameat2 +rmdir +setxattr +stat +stat64 +statfs +statfs64 +statx +symlink +symlinkat +truncate +truncate64 +unlink +unlinkat +utime +utimensat +utimensat_time64 +utimes +'''.split()) + +# Miscellaneous syscalls used during process startup, at least on x86_64 +ALLOWED = DEFAULT_SET | BASIC_IO_SET | FILESYSTEM_SET | set(''' +arch_prctl +ioctl +madvise +mprotect +mremap +prctl +readdir +umask +'''.split()) + +# Syscalls we will try to use, expecting them to be either allowed or +# blocked by our allow and/or deny lists +TRY_SYSCALLS = [ + 'chmod', + 'chroot', + 'clone3', + 'ioctl TIOCNOTTY', + 'ioctl TIOCSTI CVE-2019-10063', + 'ioctl TIOCSTI', + 'listen', + 'prctl', +] + + +class Test(unittest.TestCase): + def setUp(self) -> None: + here = os.path.dirname(os.path.abspath(__file__)) + + if 'G_TEST_SRCDIR' in os.environ: + self.test_srcdir = os.getenv('G_TEST_SRCDIR') + '/tests' + else: + self.test_srcdir = here + + if 'G_TEST_BUILDDIR' in os.environ: + self.test_builddir = os.getenv('G_TEST_BUILDDIR') + '/tests' + else: + self.test_builddir = here + + self.bwrap = os.getenv('BWRAP', 'bwrap') + self.try_syscall = os.path.join(self.test_builddir, 'try-syscall') + + completed = subprocess.run( + [ + self.bwrap, + '--ro-bind', '/', '/', + 'true', + ], + stdin=subprocess.DEVNULL, + stdout=subprocess.DEVNULL, + stderr=2, + ) + + if completed.returncode != 0: + raise unittest.SkipTest( + 'cannot run bwrap (does it need to be setuid?)' + ) + + def tearDown(self) -> None: + pass + + def test_no_seccomp(self) -> None: + for syscall in TRY_SYSCALLS: + print('# {} without seccomp'.format(syscall)) + completed = subprocess.run( + [ + self.bwrap, + '--ro-bind', '/', '/', + self.try_syscall, syscall, + ], + stdin=subprocess.DEVNULL, + stdout=subprocess.DEVNULL, + stderr=2, + ) + + if ( + syscall == 'ioctl TIOCSTI CVE-2019-10063' + and completed.returncode == errno.ENOENT + ): + print('# Cannot test 64-bit syscall parameter on 32-bit') + continue + + if syscall == 'clone3': + # If the kernel supports it, we didn't block it so + # it fails with EFAULT. If the kernel doesn't support it, + # it'll fail with ENOSYS instead. + self.assertIn( + completed.returncode, + (errno.ENOSYS, errno.EFAULT), + ) + elif syscall.startswith('ioctl') or syscall == 'listen': + self.assertEqual(completed.returncode, errno.EBADF) + else: + self.assertEqual(completed.returncode, errno.EFAULT) + + def test_seccomp_allowlist(self) -> None: + with tempfile.TemporaryFile() as allowlist_temp: + allowlist = seccomp.SyscallFilter(seccomp.ERRNO(errno.ENOSYS)) + + if os.uname().machine == 'x86_64': + # Allow Python and try-syscall to be different word sizes + allowlist.add_arch(seccomp.Arch.X86) + + for syscall in ALLOWED: + try: + allowlist.add_rule(seccomp.ALLOW, syscall) + except Exception as e: + print('# Cannot add {} to allowlist: {!r}'.format(syscall, e)) + + allowlist.export_bpf(allowlist_temp) + + for syscall in TRY_SYSCALLS: + print('# allowlist vs. {}'.format(syscall)) + allowlist_temp.seek(0, os.SEEK_SET) + + completed = subprocess.run( + [ + self.bwrap, + '--ro-bind', '/', '/', + '--seccomp', str(allowlist_temp.fileno()), + self.try_syscall, syscall, + ], + pass_fds=(allowlist_temp.fileno(),), + stdin=subprocess.DEVNULL, + stdout=subprocess.DEVNULL, + stderr=2, + ) + + if ( + syscall == 'ioctl TIOCSTI CVE-2019-10063' + and completed.returncode == errno.ENOENT + ): + print('# Cannot test 64-bit syscall parameter on 32-bit') + continue + + if syscall.startswith('ioctl'): + # We allow this, so it is executed (and in this simple + # example, immediately fails) + self.assertEqual(completed.returncode, errno.EBADF) + elif syscall in ('chroot', 'listen', 'clone3'): + # We don't allow these, so they fail with ENOSYS. + # clone3 might also be failing with ENOSYS because + # the kernel genuinely doesn't support it. + self.assertEqual(completed.returncode, errno.ENOSYS) + else: + # We allow this, so it is executed (and in this simple + # example, immediately fails) + self.assertEqual(completed.returncode, errno.EFAULT) + + def test_seccomp_denylist(self) -> None: + with tempfile.TemporaryFile() as denylist_temp: + denylist = seccomp.SyscallFilter(seccomp.ALLOW) + + if os.uname().machine == 'x86_64': + # Allow Python and try-syscall to be different word sizes + denylist.add_arch(seccomp.Arch.X86) + + # Using ECONNREFUSED here because it's unlikely that any of + # these syscalls will legitimately fail with that code, so + # if they fail like this, it will be as a result of seccomp. + denylist.add_rule(seccomp.ERRNO(errno.ECONNREFUSED), 'chmod') + denylist.add_rule(seccomp.ERRNO(errno.ECONNREFUSED), 'chroot') + denylist.add_rule(seccomp.ERRNO(errno.ECONNREFUSED), 'prctl') + denylist.add_rule( + seccomp.ERRNO(errno.ECONNREFUSED), 'ioctl', + seccomp.Arg(1, seccomp.MASKED_EQ, 0xffffffff, termios.TIOCSTI), + ) + + denylist.export_bpf(denylist_temp) + + for syscall in TRY_SYSCALLS: + print('# denylist vs. {}'.format(syscall)) + denylist_temp.seek(0, os.SEEK_SET) + + completed = subprocess.run( + [ + self.bwrap, + '--ro-bind', '/', '/', + '--seccomp', str(denylist_temp.fileno()), + self.try_syscall, syscall, + ], + pass_fds=(denylist_temp.fileno(),), + stdin=subprocess.DEVNULL, + stdout=subprocess.DEVNULL, + stderr=2, + ) + + if ( + syscall == 'ioctl TIOCSTI CVE-2019-10063' + and completed.returncode == errno.ENOENT + ): + print('# Cannot test 64-bit syscall parameter on 32-bit') + continue + + if syscall == 'clone3': + # If the kernel supports it, we didn't block it so + # it fails with EFAULT. If the kernel doesn't support it, + # it'll fail with ENOSYS instead. + self.assertIn( + completed.returncode, + (errno.ENOSYS, errno.EFAULT), + ) + elif syscall in ('ioctl TIOCNOTTY', 'listen'): + # Not on the denylist + self.assertEqual(completed.returncode, errno.EBADF) + else: + # We blocked all of these + self.assertEqual(completed.returncode, errno.ECONNREFUSED) + + def test_seccomp_stacked(self, allowlist_first=False) -> None: + with tempfile.TemporaryFile( + ) as allowlist_temp, tempfile.TemporaryFile( + ) as denylist_temp: + # This filter is a simplified version of what Flatpak wants + + allowlist = seccomp.SyscallFilter(seccomp.ERRNO(errno.ENOSYS)) + denylist = seccomp.SyscallFilter(seccomp.ALLOW) + + if os.uname().machine == 'x86_64': + # Allow Python and try-syscall to be different word sizes + allowlist.add_arch(seccomp.Arch.X86) + denylist.add_arch(seccomp.Arch.X86) + + for syscall in ALLOWED: + try: + allowlist.add_rule(seccomp.ALLOW, syscall) + except Exception as e: + print('# Cannot add {} to allowlist: {!r}'.format(syscall, e)) + + denylist.add_rule(seccomp.ERRNO(errno.ECONNREFUSED), 'chmod') + denylist.add_rule(seccomp.ERRNO(errno.ECONNREFUSED), 'chroot') + denylist.add_rule( + seccomp.ERRNO(errno.ECONNREFUSED), 'ioctl', + seccomp.Arg(1, seccomp.MASKED_EQ, 0xffffffff, termios.TIOCSTI), + ) + + # All seccomp programs except the last must allow prctl(), + # because otherwise we wouldn't be able to add the remaining + # seccomp programs. We document that the last program can + # block prctl, so test that. + if allowlist_first: + denylist.add_rule(seccomp.ERRNO(errno.ECONNREFUSED), 'prctl') + + allowlist.export_bpf(allowlist_temp) + denylist.export_bpf(denylist_temp) + + for syscall in TRY_SYSCALLS: + print('# stacked vs. {}'.format(syscall)) + allowlist_temp.seek(0, os.SEEK_SET) + denylist_temp.seek(0, os.SEEK_SET) + + if allowlist_first: + fds = [allowlist_temp.fileno(), denylist_temp.fileno()] + else: + fds = [denylist_temp.fileno(), allowlist_temp.fileno()] + + completed = subprocess.run( + [ + self.bwrap, + '--ro-bind', '/', '/', + '--add-seccomp-fd', str(fds[0]), + '--add-seccomp-fd', str(fds[1]), + self.try_syscall, syscall, + ], + pass_fds=fds, + stdin=subprocess.DEVNULL, + stdout=subprocess.DEVNULL, + stderr=2, + ) + + if ( + syscall == 'ioctl TIOCSTI CVE-2019-10063' + and completed.returncode == errno.ENOENT + ): + print('# Cannot test 64-bit syscall parameter on 32-bit') + continue + + if syscall == 'ioctl TIOCNOTTY': + # Not denied by the denylist, and allowed by the allowlist + self.assertEqual(completed.returncode, errno.EBADF) + elif syscall in ('clone3', 'listen'): + # We didn't deny these, so the denylist has no effect + # and we fall back to the allowlist, which doesn't + # include them either. + # clone3 might also be failing with ENOSYS because + # the kernel genuinely doesn't support it. + self.assertEqual(completed.returncode, errno.ENOSYS) + elif syscall == 'chroot': + # This is denied by the denylist *and* not allowed by + # the allowlist. The result depends which one we added + # first: the most-recently-added filter "wins". + if allowlist_first: + self.assertEqual( + completed.returncode, + errno.ECONNREFUSED, + ) + else: + self.assertEqual(completed.returncode, errno.ENOSYS) + elif syscall == 'prctl': + # We can only put this on the denylist if the denylist + # is the last to be added. + if allowlist_first: + self.assertEqual( + completed.returncode, + errno.ECONNREFUSED, + ) + else: + self.assertEqual(completed.returncode, errno.EFAULT) + else: + # chmod is allowed by the allowlist but blocked by the + # denylist. Denying takes precedence over allowing, + # regardless of order. + self.assertEqual(completed.returncode, errno.ECONNREFUSED) + + def test_seccomp_stacked_allowlist_first(self) -> None: + self.test_seccomp_stacked(allowlist_first=True) + + def test_seccomp_invalid(self) -> None: + with tempfile.TemporaryFile( + ) as allowlist_temp, tempfile.TemporaryFile( + ) as denylist_temp: + completed = subprocess.run( + [ + self.bwrap, + '--ro-bind', '/', '/', + '--add-seccomp-fd', '-1', + 'true', + ], + stdin=subprocess.DEVNULL, + stdout=subprocess.DEVNULL, + stderr=subprocess.PIPE, + ) + self.assertIn(b'bwrap: Invalid fd: -1\n', completed.stderr) + self.assertEqual(completed.returncode, 1) + + completed = subprocess.run( + [ + self.bwrap, + '--ro-bind', '/', '/', + '--seccomp', '0a', + 'true', + ], + stdin=subprocess.DEVNULL, + stdout=subprocess.DEVNULL, + stderr=subprocess.PIPE, + ) + self.assertIn(b'bwrap: Invalid fd: 0a\n', completed.stderr) + self.assertEqual(completed.returncode, 1) + + completed = subprocess.run( + [ + self.bwrap, + '--ro-bind', '/', '/', + '--add-seccomp-fd', str(denylist_temp.fileno()), + '--seccomp', str(allowlist_temp.fileno()), + 'true', + ], + pass_fds=(allowlist_temp.fileno(), denylist_temp.fileno()), + stdin=subprocess.DEVNULL, + stdout=subprocess.DEVNULL, + stderr=subprocess.PIPE, + ) + self.assertIn( + b'bwrap: --seccomp cannot be combined with --add-seccomp-fd\n', + completed.stderr, + ) + self.assertEqual(completed.returncode, 1) + + completed = subprocess.run( + [ + self.bwrap, + '--ro-bind', '/', '/', + '--seccomp', str(allowlist_temp.fileno()), + '--add-seccomp-fd', str(denylist_temp.fileno()), + 'true', + ], + pass_fds=(allowlist_temp.fileno(), denylist_temp.fileno()), + stdin=subprocess.DEVNULL, + stdout=subprocess.DEVNULL, + stderr=subprocess.PIPE, + ) + self.assertIn( + b'--add-seccomp-fd cannot be combined with --seccomp', + completed.stderr, + ) + self.assertEqual(completed.returncode, 1) + + completed = subprocess.run( + [ + self.bwrap, + '--ro-bind', '/', '/', + '--add-seccomp-fd', str(allowlist_temp.fileno()), + '--add-seccomp-fd', str(allowlist_temp.fileno()), + 'true', + ], + pass_fds=(allowlist_temp.fileno(), allowlist_temp.fileno()), + stdin=subprocess.DEVNULL, + stdout=subprocess.DEVNULL, + stderr=subprocess.PIPE, + ) + self.assertIn( + b"bwrap: Can't read seccomp data: ", + completed.stderr, + ) + self.assertEqual(completed.returncode, 1) + + allowlist_temp.write(b'\x01') + allowlist_temp.seek(0, os.SEEK_SET) + completed = subprocess.run( + [ + self.bwrap, + '--ro-bind', '/', '/', + '--add-seccomp-fd', str(denylist_temp.fileno()), + '--add-seccomp-fd', str(allowlist_temp.fileno()), + 'true', + ], + pass_fds=(allowlist_temp.fileno(), denylist_temp.fileno()), + stdin=subprocess.DEVNULL, + stdout=subprocess.DEVNULL, + stderr=subprocess.PIPE, + ) + self.assertIn( + b'bwrap: Invalid seccomp data, must be multiple of 8\n', + completed.stderr, + ) + self.assertEqual(completed.returncode, 1) + + +def main(): + logging.basicConfig(level=logging.DEBUG) + + try: + from tap.runner import TAPTestRunner + except ImportError: + TAPTestRunner = None # type: ignore + + if TAPTestRunner is not None: + runner = TAPTestRunner() + runner.set_stream(True) + unittest.main(testRunner=runner) + else: + print('# tap.runner not available, using simple TAP output') + print('1..1') + program = unittest.main(exit=False) + if program.result.wasSuccessful(): + print('ok 1 - %r' % program.result) + else: + print('not ok 1 - %r' % program.result) + sys.exit(1) + +if __name__ == '__main__': + main() diff --git a/tests/test-specifying-pidns.sh b/tests/test-specifying-pidns.sh new file mode 100755 index 0000000..de38b97 --- /dev/null +++ b/tests/test-specifying-pidns.sh @@ -0,0 +1,28 @@ +#!/usr/bin/env bash + +set -xeuo pipefail + +srcd=$(cd $(dirname "$0") && pwd) +. "${srcd}/libtest.sh" + +echo "1..1" + +# This test needs user namespaces +if test -n "${bwrap_is_suid:-}"; then + echo "ok - # SKIP no setuid support for --unshare-user" +else + mkfifo donepipe + $RUN --info-fd 42 --unshare-user --unshare-pid sh -c 'readlink /proc/self/ns/pid > sandbox-pidns; cat < donepipe' >/dev/null 42>info.json & + while ! test -f sandbox-pidns; do sleep 1; done + SANDBOX1PID=$(extract_child_pid info.json) + + ASAN_OPTIONS=detect_leaks=0 LSAN_OPTIONS=detect_leaks=0 \ + $RUN --userns 11 --pidns 12 readlink /proc/self/ns/pid > sandbox2-pidns 11< /proc/$SANDBOX1PID/ns/user 12< /proc/$SANDBOX1PID/ns/pid + echo foo > donepipe + + assert_files_equal sandbox-pidns sandbox2-pidns + + rm donepipe info.json sandbox-pidns + + echo "ok - Test --pidns" +fi diff --git a/tests/test-specifying-userns.sh b/tests/test-specifying-userns.sh new file mode 100755 index 0000000..07c5b4a --- /dev/null +++ b/tests/test-specifying-userns.sh @@ -0,0 +1,28 @@ +#!/usr/bin/env bash + +set -xeuo pipefail + +srcd=$(cd $(dirname "$0") && pwd) +. "${srcd}/libtest.sh" + +echo "1..1" + +# This test needs user namespaces +if test -n "${bwrap_is_suid:-}"; then + echo "ok - # SKIP no setuid support for --unshare-user" +else + mkfifo donepipe + + $RUN --info-fd 42 --unshare-user sh -c 'readlink /proc/self/ns/user > sandbox-userns; cat < donepipe' >/dev/null 42>info.json & + while ! test -f sandbox-userns; do sleep 1; done + SANDBOX1PID=$(extract_child_pid info.json) + + $RUN --userns 11 readlink /proc/self/ns/user > sandbox2-userns 11< /proc/$SANDBOX1PID/ns/user + echo foo > donepipe + + assert_files_equal sandbox-userns sandbox2-userns + + rm donepipe info.json sandbox-userns + + echo "ok - Test --userns" +fi diff --git a/tests/test-utils.c b/tests/test-utils.c new file mode 100644 index 0000000..41874a1 --- /dev/null +++ b/tests/test-utils.c @@ -0,0 +1,215 @@ +/* + * Copyright © 2019-2021 Collabora Ltd. + * + * SPDX-License-Identifier: LGPL-2.0-or-later + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see . + */ + +#include +#include +#include + +#include "utils.h" + +/* A small implementation of TAP */ +static unsigned int test_number = 0; + +__attribute__((format(printf, 1, 2))) +static void +ok (const char *format, ...) +{ + va_list ap; + + printf ("ok %u - ", ++test_number); + va_start (ap, format); + vprintf (format, ap); + va_end (ap); + printf ("\n"); +} + +/* for simplicity we always die immediately on failure */ +#define not_ok(fmt, ...) die (fmt, ## __VA_ARGS__) + +/* approximately GLib-compatible helper macros */ +#define g_test_message(fmt, ...) printf ("# " fmt "\n", ## __VA_ARGS__) +#define g_assert_cmpstr(left_expr, op, right_expr) \ + do { \ + const char *left = (left_expr); \ + const char *right = (right_expr); \ + if (strcmp0 (left, right) op 0) \ + ok ("%s (\"%s\") %s %s (\"%s\")", #left_expr, left, #op, #right_expr, right); \ + else \ + not_ok ("expected %s (\"%s\") %s %s (\"%s\")", \ + #left_expr, left, #op, #right_expr, right); \ + } while (0) +#define g_assert_cmpint(left_expr, op, right_expr) \ + do { \ + intmax_t left = (left_expr); \ + intmax_t right = (right_expr); \ + if (left op right) \ + ok ("%s (%ji) %s %s (%ji)", #left_expr, left, #op, #right_expr, right); \ + else \ + not_ok ("expected %s (%ji) %s %s (%ji)", \ + #left_expr, left, #op, #right_expr, right); \ + } while (0) +#define g_assert_cmpuint(left_expr, op, right_expr) \ + do { \ + uintmax_t left = (left_expr); \ + uintmax_t right = (right_expr); \ + if (left op right) \ + ok ("%s (%ju) %s %s (%ju)", #left_expr, left, #op, #right_expr, right); \ + else \ + not_ok ("expected %s (%ju) %s %s (%ju)", \ + #left_expr, left, #op, #right_expr, right); \ + } while (0) +#define g_assert_true(expr) \ + do { \ + if ((expr)) \ + ok ("%s", #expr); \ + else \ + not_ok ("expected %s to be true", #expr); \ + } while (0) +#define g_assert_false(expr) \ + do { \ + if (!(expr)) \ + ok ("!(%s)", #expr); \ + else \ + not_ok ("expected %s to be false", #expr); \ + } while (0) +#define g_assert_null(expr) \ + do { \ + if ((expr) == NULL) \ + ok ("%s was null", #expr); \ + else \ + not_ok ("expected %s to be null", #expr); \ + } while (0) +#define g_assert_nonnull(expr) \ + do { \ + if ((expr) != NULL) \ + ok ("%s wasn't null", #expr); \ + else \ + not_ok ("expected %s to be non-null", #expr); \ + } while (0) + +static int +strcmp0 (const char *left, + const char *right) +{ + if (left == right) + return 0; + + if (left == NULL) + return -1; + + if (right == NULL) + return 1; + + return strcmp (left, right); +} + +static void +test_n_elements (void) +{ + int three[] = { 1, 2, 3 }; + g_assert_cmpuint (N_ELEMENTS (three), ==, 3); +} + +static void +test_strconcat (void) +{ + const char *a = "aaa"; + const char *b = "bbb"; + char *ab = strconcat (a, b); + g_assert_cmpstr (ab, ==, "aaabbb"); + free (ab); +} + +static void +test_strconcat3 (void) +{ + const char *a = "aaa"; + const char *b = "bbb"; + const char *c = "ccc"; + char *abc = strconcat3 (a, b, c); + g_assert_cmpstr (abc, ==, "aaabbbccc"); + free (abc); +} + +static void +test_has_prefix (void) +{ + g_assert_true (has_prefix ("foo", "foo")); + g_assert_true (has_prefix ("foobar", "foo")); + g_assert_false (has_prefix ("foobar", "fool")); + g_assert_false (has_prefix ("foo", "fool")); + g_assert_true (has_prefix ("foo", "")); + g_assert_true (has_prefix ("", "")); + g_assert_false (has_prefix ("", "no")); + g_assert_false (has_prefix ("yes", "no")); +} + +static void +test_has_path_prefix (void) +{ + static const struct + { + const char *str; + const char *prefix; + bool expected; + } tests[] = + { + { "/run/host/usr", "/run/host", TRUE }, + { "/run/host/usr", "/run/host/", TRUE }, + { "/run/host", "/run/host", TRUE }, + { "////run///host////usr", "//run//host", TRUE }, + { "////run///host////usr", "//run//host////", TRUE }, + { "/run/hostage", "/run/host", FALSE }, + /* Any number of leading slashes is ignored, even zero */ + { "foo/bar", "/foo", TRUE }, + { "/foo/bar", "foo", TRUE }, + }; + size_t i; + + for (i = 0; i < N_ELEMENTS (tests); i++) + { + const char *str = tests[i].str; + const char *prefix = tests[i].prefix; + bool expected = tests[i].expected; + + if (expected) + g_test_message ("%s should have path prefix %s", str, prefix); + else + g_test_message ("%s should not have path prefix %s", str, prefix); + + if (expected) + g_assert_true (has_path_prefix (str, prefix)); + else + g_assert_false (has_path_prefix (str, prefix)); + } +} + +int +main (int argc UNUSED, + char **argv UNUSED) +{ + setvbuf (stdout, NULL, _IONBF, 0); + test_n_elements (); + test_strconcat (); + test_strconcat3 (); + test_has_prefix (); + test_has_path_prefix (); + printf ("1..%u\n", test_number); + return 0; +} diff --git a/tests/try-syscall.c b/tests/try-syscall.c new file mode 100644 index 0000000..6f2f112 --- /dev/null +++ b/tests/try-syscall.c @@ -0,0 +1,180 @@ +/* + * Copyright 2021 Simon McVittie + * SPDX-License-Identifier: LGPL-2.0-or-later + * + * Try one or more system calls that might have been blocked by a + * seccomp filter. Return the last value of errno seen. + * + * In general, we pass a bad fd or pointer to each syscall that will + * accept one, so that it will fail with EBADF or EFAULT without side-effects. + * + * This helper is used for regression tests in both bubblewrap and flatpak. + * Please keep both copies in sync. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#if defined(_MIPS_SIM) +# if _MIPS_SIM == _ABIO32 +# define MISSING_SYSCALL_BASE 4000 +# elif _MIPS_SIM == _ABI64 +# define MISSING_SYSCALL_BASE 5000 +# elif _MIPS_SIM == _ABIN32 +# define MISSING_SYSCALL_BASE 6000 +# else +# error "Unknown MIPS ABI" +# endif +#endif + +#if defined(__ia64__) +# define MISSING_SYSCALL_BASE 1024 +#endif + +#if defined(__alpha__) +# define MISSING_SYSCALL_BASE 110 +#endif + +#if defined(__x86_64__) && defined(__ILP32__) +# define MISSING_SYSCALL_BASE 0x40000000 +#endif + +/* + * MISSING_SYSCALL_BASE: + * + * Number to add to the syscall numbers of recently-added syscalls + * to get the appropriate syscall for the current ABI. + */ +#ifndef MISSING_SYSCALL_BASE +# define MISSING_SYSCALL_BASE 0 +#endif + +#ifndef __NR_clone3 +# define __NR_clone3 (MISSING_SYSCALL_BASE + 435) +#endif + +/* + * The size of clone3's parameter (as of 2021) + */ +#define SIZEOF_STRUCT_CLONE_ARGS ((size_t) 88) + +/* + * An invalid pointer that will cause syscalls to fail with EFAULT + */ +#define WRONG_POINTER ((char *) 1) + +#ifndef PR_GET_CHILD_SUBREAPER +#define PR_GET_CHILD_SUBREAPER 37 +#endif + +int +main (int argc, char **argv) +{ + int errsv = 0; + int i; + + for (i = 1; i < argc; i++) + { + const char *arg = argv[i]; + + if (strcmp (arg, "print-errno-values") == 0) + { + printf ("EBADF=%d\n", EBADF); + printf ("EFAULT=%d\n", EFAULT); + printf ("ENOENT=%d\n", ENOENT); + printf ("ENOSYS=%d\n", ENOSYS); + printf ("EPERM=%d\n", EPERM); + } + else if (strcmp (arg, "chmod") == 0) + { + /* If not blocked by seccomp, this will fail with EFAULT */ + if (chmod (WRONG_POINTER, 0700) != 0) + { + errsv = errno; + perror (arg); + } + } + else if (strcmp (arg, "chroot") == 0) + { + /* If not blocked by seccomp, this will fail with EFAULT */ + if (chroot (WRONG_POINTER) != 0) + { + errsv = errno; + perror (arg); + } + } + else if (strcmp (arg, "clone3") == 0) + { + /* If not blocked by seccomp, this will fail with EFAULT */ + if (syscall (__NR_clone3, WRONG_POINTER, SIZEOF_STRUCT_CLONE_ARGS) != 0) + { + errsv = errno; + perror (arg); + } + } + else if (strcmp (arg, "ioctl TIOCNOTTY") == 0) + { + /* If not blocked by seccomp, this will fail with EBADF */ + if (ioctl (-1, TIOCNOTTY) != 0) + { + errsv = errno; + perror (arg); + } + } + else if (strcmp (arg, "ioctl TIOCSTI") == 0) + { + /* If not blocked by seccomp, this will fail with EBADF */ + if (ioctl (-1, TIOCSTI, WRONG_POINTER) != 0) + { + errsv = errno; + perror (arg); + } + } +#ifdef __LP64__ + else if (strcmp (arg, "ioctl TIOCSTI CVE-2019-10063") == 0) + { + unsigned long not_TIOCSTI = (0x123UL << 32) | (unsigned long) TIOCSTI; + + /* If not blocked by seccomp, this will fail with EBADF */ + if (syscall (__NR_ioctl, -1, not_TIOCSTI, WRONG_POINTER) != 0) + { + errsv = errno; + perror (arg); + } + } +#endif + else if (strcmp (arg, "listen") == 0) + { + /* If not blocked by seccomp, this will fail with EBADF */ + if (listen (-1, 42) != 0) + { + errsv = errno; + perror (arg); + } + } + else if (strcmp (arg, "prctl") == 0) + { + /* If not blocked by seccomp, this will fail with EFAULT */ + if (prctl (PR_GET_CHILD_SUBREAPER, WRONG_POINTER, 0, 0, 0) != 0) + { + errsv = errno; + perror (arg); + } + } + else + { + fprintf (stderr, "Unsupported syscall \"%s\"\n", arg); + errsv = ENOENT; + } + } + + return errsv; +} diff --git a/tests/use-as-subproject/.gitignore b/tests/use-as-subproject/.gitignore new file mode 100644 index 0000000..371a7d9 --- /dev/null +++ b/tests/use-as-subproject/.gitignore @@ -0,0 +1,2 @@ +/_build/ +/subprojects/ diff --git a/tests/use-as-subproject/README b/tests/use-as-subproject/README new file mode 100644 index 0000000..97d2e88 --- /dev/null +++ b/tests/use-as-subproject/README @@ -0,0 +1,3 @@ +This is a simple example of a project that uses bubblewrap as a +subproject. The intention is that if this project can successfully build +bubblewrap as a subproject, then so could Flatpak. diff --git a/tests/use-as-subproject/assert-correct-rpath.py b/tests/use-as-subproject/assert-correct-rpath.py new file mode 100755 index 0000000..10b0947 --- /dev/null +++ b/tests/use-as-subproject/assert-correct-rpath.py @@ -0,0 +1,26 @@ +#!/usr/bin/python3 +# Copyright 2022 Collabora Ltd. +# SPDX-License-Identifier: LGPL-2.0-or-later + +import subprocess +import sys + +if __name__ == '__main__': + completed = subprocess.run( + ['objdump', '-T', '-x', sys.argv[1]], + stdout=subprocess.PIPE, + ) + stdout = completed.stdout + assert stdout is not None + seen_rpath = False + + for line in stdout.splitlines(): + words = line.strip().split() + + if words and words[0] in (b'RPATH', b'RUNPATH'): + print(line.decode(errors='backslashreplace')) + assert len(words) == 2, words + assert words[1] == b'${ORIGIN}/../lib', words + seen_rpath = True + + assert seen_rpath diff --git a/tests/use-as-subproject/config.h b/tests/use-as-subproject/config.h new file mode 100644 index 0000000..4a99af4 --- /dev/null +++ b/tests/use-as-subproject/config.h @@ -0,0 +1 @@ +#error Should not use superproject config.h to compile bubblewrap diff --git a/tests/use-as-subproject/dummy-config.h.in b/tests/use-as-subproject/dummy-config.h.in new file mode 100644 index 0000000..1d1e56a --- /dev/null +++ b/tests/use-as-subproject/dummy-config.h.in @@ -0,0 +1 @@ +#error Should not use superproject generated config.h to compile bubblewrap diff --git a/tests/use-as-subproject/meson.build b/tests/use-as-subproject/meson.build new file mode 100644 index 0000000..bc4781c --- /dev/null +++ b/tests/use-as-subproject/meson.build @@ -0,0 +1,20 @@ +project( + 'use-bubblewrap-as-subproject', + 'c', + version : '0', + meson_version : '>=0.49.0', +) + +configure_file( + output : 'config.h', + input : 'dummy-config.h.in', + configuration : configuration_data(), +) + +subproject( + 'bubblewrap', + default_options : [ + 'install_rpath=${ORIGIN}/../lib', + 'program_prefix=not-flatpak-', + ], +) diff --git a/utils.c b/utils.c index a99a865..43c8d79 100644 --- a/utils.c +++ b/utils.c @@ -1,5 +1,6 @@ /* bubblewrap * Copyright (C) 2016 Alexander Larsson + * SPDX-License-Identifier: LGPL-2.0-or-later * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -18,28 +19,72 @@ #include "config.h" #include "utils.h" +#include +#include #include #include #ifdef HAVE_SELINUX #include #endif +#ifndef HAVE_SELINUX_2_3 +/* libselinux older than 2.3 weren't const-correct */ +#define setexeccon(x) setexeccon ((security_context_t) x) +#define setfscreatecon(x) setfscreatecon ((security_context_t) x) +#define security_check_context(x) security_check_context ((security_context_t) x) +#endif + +__attribute__((format(printf, 1, 0))) static void +warnv (const char *format, + va_list args, + const char *detail) +{ + fprintf (stderr, "bwrap: "); + vfprintf (stderr, format, args); + + if (detail != NULL) + fprintf (stderr, ": %s", detail); + + fprintf (stderr, "\n"); +} + +void +warn (const char *format, ...) +{ + va_list args; + + va_start (args, format); + warnv (format, args, NULL); + va_end (args); +} + void die_with_error (const char *format, ...) { va_list args; int errsv; - fprintf (stderr, "bwrap: "); + errsv = errno; + + va_start (args, format); + warnv (format, args, strerror (errsv)); + va_end (args); + + exit (1); +} + +void +die_with_mount_error (const char *format, ...) +{ + va_list args; + int errsv; errsv = errno; va_start (args, format); - vfprintf (stderr, format, args); + warnv (format, args, mount_strerror (errsv)); va_end (args); - fprintf (stderr, ": %s\n", strerror (errsv)); - exit (1); } @@ -48,24 +93,20 @@ die (const char *format, ...) { va_list args; - fprintf (stderr, "bwrap: "); - va_start (args, format); - vfprintf (stderr, format, args); + warnv (format, args, NULL); va_end (args); - fprintf (stderr, "\n"); - exit (1); } void -die_unless_label_valid (const char *label) +die_unless_label_valid (UNUSED const char *label) { #ifdef HAVE_SELINUX if (is_selinux_enabled () == 1) { - if (security_check_context ((security_context_t) label) < 0) + if (security_check_context (label) < 0) die_with_error ("invalid label %s", label); return; } @@ -104,9 +145,9 @@ xmalloc (size_t size) } void * -xcalloc (size_t size) +xcalloc (size_t nmemb, size_t size) { - void *res = calloc (1, size); + void *res = calloc (nmemb, size); if (res == NULL) die_oom (); @@ -116,9 +157,13 @@ xcalloc (size_t size) void * xrealloc (void *ptr, size_t size) { - void *res = realloc (ptr, size); + void *res; - if (size != 0 && res == NULL) + assert (size != 0); + + res = realloc (ptr, size); + + if (res == NULL) die_oom (); return res; } @@ -230,6 +275,13 @@ has_prefix (const char *str, return strncmp (str, prefix, strlen (prefix)) == 0; } +void +xclearenv (void) +{ + if (clearenv () != 0) + die_with_error ("clearenv failed"); +} + void xsetenv (const char *name, const char *value, int overwrite) { @@ -448,9 +500,14 @@ ensure_file (const char *path, /* We check this ahead of time, otherwise the create file will fail in the read-only - case with EROFS instead of EEXIST */ + case with EROFS instead of EEXIST. + + We're trying to set up a mount point for a non-directory, so any + non-directory, non-symlink is acceptable - it doesn't necessarily + have to be a regular file. */ if (stat (path, &buf) == 0 && - S_ISREG (buf.st_mode)) + !S_ISDIR (buf.st_mode) && + !S_ISLNK (buf.st_mode)) return 0; if (create_file (path, mode, NULL) != 0 && errno != EEXIST) @@ -534,7 +591,6 @@ load_file_data (int fd, ssize_t data_read; ssize_t data_len; ssize_t res; - int errsv; data_read = 0; data_len = 4080; @@ -544,6 +600,12 @@ load_file_data (int fd, { if (data_len == data_read + 1) { + if (data_len > SSIZE_MAX / 2) + { + errno = EFBIG; + return NULL; + } + data_len *= 2; data = xrealloc (data, data_len); } @@ -553,12 +615,7 @@ load_file_data (int fd, while (res < 0 && errno == EINTR); if (res < 0) - { - errsv = errno; - close (fd); - errno = errsv; - return NULL; - } + return NULL; data_read += res; } @@ -638,7 +695,7 @@ ensure_dir (const char *path, /* Sets errno on error (!= 0) */ int mkdir_with_parents (const char *pathname, - int mode, + mode_t mode, bool create_last) { cleanup_free char *fn = NULL; @@ -745,7 +802,7 @@ read_pid_from_socket (int socket) msg.msg_controllen = control_len_rcv; if (recvmsg (socket, &msg, 0) < 0) - die_with_error ("Cant read pid from socket"); + die_with_error ("Can't read pid from socket"); if (msg.msg_controllen <= 0) die ("Unexpected short read from pid socket"); @@ -764,6 +821,47 @@ read_pid_from_socket (int socket) die ("No pid returned on socket"); } +/* Sets errno on error (== NULL), + * Always ensures terminating zero */ +char * +readlink_malloc (const char *pathname) +{ + size_t size = 50; + ssize_t n; + cleanup_free char *value = NULL; + + do + { + if (size > SIZE_MAX / 2) + die ("Symbolic link target pathname too long"); + size *= 2; + value = xrealloc (value, size); + n = readlink (pathname, value, size - 1); + if (n < 0) + return NULL; + } + while (size - 2 < (size_t)n); + + value[n] = 0; + return steal_pointer (&value); +} + +char * +get_oldroot_path (const char *path) +{ + while (*path == '/') + path++; + return strconcat ("/oldroot/", path); +} + +char * +get_newroot_path (const char *path) +{ + while (*path == '/') + path++; + return strconcat ("/newroot/", path); +} + int raw_clone (unsigned long flags, void *child_stack) @@ -789,7 +887,7 @@ pivot_root (const char * new_root, const char * put_old) } char * -label_mount (const char *opt, const char *mount_label) +label_mount (const char *opt, UNUSED const char *mount_label) { #ifdef HAVE_SELINUX if (mount_label) @@ -806,21 +904,42 @@ label_mount (const char *opt, const char *mount_label) } int -label_create_file (const char *file_label) +label_create_file (UNUSED const char *file_label) { #ifdef HAVE_SELINUX if (is_selinux_enabled () > 0 && file_label) - return setfscreatecon ((security_context_t) file_label); + return setfscreatecon (file_label); #endif return 0; } int -label_exec (const char *exec_label) +label_exec (UNUSED const char *exec_label) { #ifdef HAVE_SELINUX if (is_selinux_enabled () > 0 && exec_label) - return setexeccon ((security_context_t) exec_label); + return setexeccon (exec_label); #endif return 0; } + +/* + * Like strerror(), but specialized for a failed mount(2) call. + */ +const char * +mount_strerror (int errsv) +{ + switch (errsv) + { + case ENOSPC: + /* "No space left on device" misleads users into thinking there + * is some sort of disk-space problem, but mount(2) uses that + * errno value to mean something more like "limit exceeded". */ + return ("Limit exceeded (ENOSPC). " + "(Hint: Check that /proc/sys/fs/mount-max is sufficient, " + "typically 100000)"); + + default: + return strerror (errsv); + } +} diff --git a/utils.h b/utils.h index 8c4db61..9f17297 100644 --- a/utils.h +++ b/utils.h @@ -1,5 +1,6 @@ /* bubblewrap * Copyright (C) 2016 Alexander Larsson + * SPDX-License-Identifier: LGPL-2.0-or-later * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -47,8 +48,16 @@ typedef int bool; #define PIPE_READ_END 0 #define PIPE_WRITE_END 1 +#ifndef PR_SET_CHILD_SUBREAPER +#define PR_SET_CHILD_SUBREAPER 36 +#endif + +void warn (const char *format, + ...) __attribute__((format (printf, 1, 2))); void die_with_error (const char *format, ...) __attribute__((__noreturn__)) __attribute__((format (printf, 1, 2))); +void die_with_mount_error (const char *format, + ...) __attribute__((__noreturn__)) __attribute__((format (printf, 1, 2))); void die (const char *format, ...) __attribute__((__noreturn__)) __attribute__((format (printf, 1, 2))); void die_oom (void) __attribute__((__noreturn__)); @@ -57,11 +66,12 @@ void die_unless_label_valid (const char *label); void fork_intermediate_child (void); void *xmalloc (size_t size); -void *xcalloc (size_t size); +void *xcalloc (size_t nmemb, size_t size); void *xrealloc (void *ptr, size_t size); char *xstrdup (const char *str); void strfreev (char **str_array); +void xclearenv (void); void xsetenv (const char *name, const char *value, int overwrite); @@ -107,11 +117,14 @@ int ensure_dir (const char *path, mode_t mode); int get_file_mode (const char *pathname); int mkdir_with_parents (const char *pathname, - int mode, + mode_t mode, bool create_last); void create_pid_socketpair (int sockets[2]); void send_pid_on_socket (int socket); int read_pid_from_socket (int socket); +char *get_oldroot_path (const char *path); +char *get_newroot_path (const char *path); +char *readlink_malloc (const char *pathname); /* syscall wrappers */ int raw_clone (unsigned long flags, @@ -123,6 +136,8 @@ char *label_mount (const char *opt, int label_exec (const char *exec_label); int label_create_file (const char *file_label); +const char *mount_strerror (int errsv); + static inline void cleanup_freep (void *p) {