Merge "Lose cp to toybox."
This commit is contained in:
Elliott Hughes
Gerrit Code Review
commit
cc825ae792
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|
@ -26,15 +26,6 @@ LOCAL_MODULE := libtoolbox_chown
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LOCAL_ADDITIONAL_DEPENDENCIES += $(LOCAL_PATH)/Android.mk
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include $(BUILD_STATIC_LIBRARY)
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include $(CLEAR_VARS)
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LOCAL_SRC_FILES := \
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upstream-netbsd/bin/cp/cp.c \
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upstream-netbsd/bin/cp/utils.c
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LOCAL_CFLAGS += $(common_cflags) -Dmain=cp_main
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LOCAL_MODULE := libtoolbox_cp
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LOCAL_ADDITIONAL_DEPENDENCIES += $(LOCAL_PATH)/Android.mk
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include $(BUILD_STATIC_LIBRARY)
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include $(CLEAR_VARS)
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LOCAL_SRC_FILES := \
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upstream-netbsd/bin/dd/args.c \
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@ -87,7 +78,6 @@ include $(CLEAR_VARS)
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BSD_TOOLS := \
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cat \
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chown \
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cp \
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dd \
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du \
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grep \
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@ -1,548 +0,0 @@
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/* $NetBSD: cp.c,v 1.58 2012/01/04 15:58:37 christos Exp $ */
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/*
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* Copyright (c) 1988, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* David Hitz of Auspex Systems Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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||||
* notice, this list of conditions and the following disclaimer.
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||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
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||||
* 3. Neither the name of the University nor the names of its contributors
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||||
* may be used to endorse or promote products derived from this software
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||||
* without specific prior written permission.
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||||
*
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||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT(
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"@(#) Copyright (c) 1988, 1993, 1994\
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The Regents of the University of California. All rights reserved.");
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)cp.c 8.5 (Berkeley) 4/29/95";
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#else
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__RCSID("$NetBSD: cp.c,v 1.58 2012/01/04 15:58:37 christos Exp $");
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#endif
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#endif /* not lint */
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/*
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* Cp copies source files to target files.
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*
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* The global PATH_T structure "to" always contains the path to the
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* current target file. Since fts(3) does not change directories,
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* this path can be either absolute or dot-relative.
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*
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* The basic algorithm is to initialize "to" and use fts(3) to traverse
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* the file hierarchy rooted in the argument list. A trivial case is the
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* case of 'cp file1 file2'. The more interesting case is the case of
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* 'cp file1 file2 ... fileN dir' where the hierarchy is traversed and the
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* path (relative to the root of the traversal) is appended to dir (stored
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* in "to") to form the final target path.
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*/
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <assert.h>
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#include <err.h>
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#include <errno.h>
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#include <fts.h>
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#include <locale.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include "extern.h"
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#define STRIP_TRAILING_SLASH(p) { \
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while ((p).p_end > (p).p_path + 1 && (p).p_end[-1] == '/') \
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*--(p).p_end = '\0'; \
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}
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static char empty[] = "";
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PATH_T to = { .p_end = to.p_path, .target_end = empty };
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uid_t myuid;
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int Hflag, Lflag, Rflag, Pflag, fflag, iflag, lflag, pflag, rflag, vflag, Nflag;
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mode_t myumask;
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sig_atomic_t pinfo;
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enum op { FILE_TO_FILE, FILE_TO_DIR, DIR_TO_DNE };
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static int copy(char *[], enum op, int);
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static void
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progress(int sig __unused)
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{
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pinfo++;
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}
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int
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main(int argc, char *argv[])
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{
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struct stat to_stat, tmp_stat;
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enum op type;
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int ch, fts_options, r, have_trailing_slash;
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char *target, **src;
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setprogname(argv[0]);
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(void)setlocale(LC_ALL, "");
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Hflag = Lflag = Pflag = Rflag = 0;
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while ((ch = getopt(argc, argv, "HLNPRfailprv")) != -1)
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switch (ch) {
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case 'H':
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Hflag = 1;
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Lflag = Pflag = 0;
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break;
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case 'L':
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Lflag = 1;
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Hflag = Pflag = 0;
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break;
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case 'N':
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Nflag = 1;
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break;
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case 'P':
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Pflag = 1;
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Hflag = Lflag = 0;
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break;
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case 'R':
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Rflag = 1;
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break;
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case 'a':
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Pflag = 1;
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pflag = 1;
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Rflag = 1;
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Hflag = Lflag = 0;
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break;
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case 'f':
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fflag = 1;
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iflag = 0;
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break;
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case 'i':
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iflag = isatty(fileno(stdin));
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fflag = 0;
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break;
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case 'l':
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lflag = 1;
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break;
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case 'p':
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pflag = 1;
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break;
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case 'r':
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rflag = 1;
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break;
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case 'v':
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vflag = 1;
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break;
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case '?':
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default:
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usage();
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/* NOTREACHED */
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}
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argc -= optind;
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argv += optind;
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if (argc < 2)
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usage();
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fts_options = FTS_NOCHDIR | FTS_PHYSICAL;
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if (rflag) {
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if (Rflag) {
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errx(EXIT_FAILURE,
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"the -R and -r options may not be specified together.");
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/* NOTREACHED */
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}
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if (Hflag || Lflag || Pflag) {
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errx(EXIT_FAILURE,
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"the -H, -L, and -P options may not be specified with the -r option.");
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/* NOTREACHED */
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}
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fts_options &= ~FTS_PHYSICAL;
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fts_options |= FTS_LOGICAL;
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}
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if (Rflag) {
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if (Hflag)
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fts_options |= FTS_COMFOLLOW;
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if (Lflag) {
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fts_options &= ~FTS_PHYSICAL;
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fts_options |= FTS_LOGICAL;
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}
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} else if (!Pflag) {
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fts_options &= ~FTS_PHYSICAL;
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fts_options |= FTS_LOGICAL | FTS_COMFOLLOW;
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}
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myuid = getuid();
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/* Copy the umask for explicit mode setting. */
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myumask = umask(0);
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(void)umask(myumask);
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/* Save the target base in "to". */
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target = argv[--argc];
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if (strlcpy(to.p_path, target, sizeof(to.p_path)) >= sizeof(to.p_path))
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errx(EXIT_FAILURE, "%s: name too long", target);
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to.p_end = to.p_path + strlen(to.p_path);
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have_trailing_slash = (to.p_end[-1] == '/');
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if (have_trailing_slash)
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STRIP_TRAILING_SLASH(to);
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to.target_end = to.p_end;
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/* Set end of argument list for fts(3). */
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argv[argc] = NULL;
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(void)signal(SIGINFO, progress);
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/*
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* Cp has two distinct cases:
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*
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* cp [-R] source target
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* cp [-R] source1 ... sourceN directory
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*
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* In both cases, source can be either a file or a directory.
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*
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* In (1), the target becomes a copy of the source. That is, if the
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* source is a file, the target will be a file, and likewise for
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* directories.
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*
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* In (2), the real target is not directory, but "directory/source".
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*/
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if (Pflag)
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r = lstat(to.p_path, &to_stat);
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else
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r = stat(to.p_path, &to_stat);
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if (r == -1 && errno != ENOENT) {
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err(EXIT_FAILURE, "%s", to.p_path);
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/* NOTREACHED */
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}
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if (r == -1 || !S_ISDIR(to_stat.st_mode)) {
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/*
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* Case (1). Target is not a directory.
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*/
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if (argc > 1)
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usage();
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/*
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* Need to detect the case:
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||||
* cp -R dir foo
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* Where dir is a directory and foo does not exist, where
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* we want pathname concatenations turned on but not for
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* the initial mkdir().
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*/
|
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if (r == -1) {
|
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if (rflag || (Rflag && (Lflag || Hflag)))
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r = stat(*argv, &tmp_stat);
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else
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r = lstat(*argv, &tmp_stat);
|
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if (r == -1) {
|
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err(EXIT_FAILURE, "%s", *argv);
|
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/* NOTREACHED */
|
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}
|
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|
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if (S_ISDIR(tmp_stat.st_mode) && (Rflag || rflag))
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type = DIR_TO_DNE;
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else
|
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type = FILE_TO_FILE;
|
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} else
|
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type = FILE_TO_FILE;
|
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|
||||
if (have_trailing_slash && type == FILE_TO_FILE) {
|
||||
if (r == -1)
|
||||
errx(1, "directory %s does not exist",
|
||||
to.p_path);
|
||||
else
|
||||
errx(1, "%s is not a directory", to.p_path);
|
||||
}
|
||||
} else {
|
||||
/*
|
||||
* Case (2). Target is a directory.
|
||||
*/
|
||||
type = FILE_TO_DIR;
|
||||
}
|
||||
|
||||
/*
|
||||
* make "cp -rp src/ dst" behave like "cp -rp src dst" not
|
||||
* like "cp -rp src/. dst"
|
||||
*/
|
||||
for (src = argv; *src; src++) {
|
||||
size_t len = strlen(*src);
|
||||
while (len-- > 1 && (*src)[len] == '/')
|
||||
(*src)[len] = '\0';
|
||||
}
|
||||
|
||||
exit(copy(argv, type, fts_options));
|
||||
/* NOTREACHED */
|
||||
}
|
||||
|
||||
static int dnestack[MAXPATHLEN]; /* unlikely we'll have more nested dirs */
|
||||
static ssize_t dnesp;
|
||||
static void
|
||||
pushdne(int dne)
|
||||
{
|
||||
|
||||
dnestack[dnesp++] = dne;
|
||||
assert(dnesp < MAXPATHLEN);
|
||||
}
|
||||
|
||||
static int
|
||||
popdne(void)
|
||||
{
|
||||
int rv;
|
||||
|
||||
rv = dnestack[--dnesp];
|
||||
assert(dnesp >= 0);
|
||||
return rv;
|
||||
}
|
||||
|
||||
static int
|
||||
copy(char *argv[], enum op type, int fts_options)
|
||||
{
|
||||
struct stat to_stat;
|
||||
FTS *ftsp;
|
||||
FTSENT *curr;
|
||||
int base, dne, sval;
|
||||
int this_failed, any_failed;
|
||||
size_t nlen;
|
||||
char *p, *target_mid;
|
||||
|
||||
base = 0; /* XXX gcc -Wuninitialized (see comment below) */
|
||||
|
||||
if ((ftsp = fts_open(argv, fts_options, NULL)) == NULL)
|
||||
err(EXIT_FAILURE, "%s", argv[0]);
|
||||
/* NOTREACHED */
|
||||
for (any_failed = 0; (curr = fts_read(ftsp)) != NULL;) {
|
||||
this_failed = 0;
|
||||
switch (curr->fts_info) {
|
||||
case FTS_NS:
|
||||
case FTS_DNR:
|
||||
case FTS_ERR:
|
||||
warnx("%s: %s", curr->fts_path,
|
||||
strerror(curr->fts_errno));
|
||||
this_failed = any_failed = 1;
|
||||
continue;
|
||||
case FTS_DC: /* Warn, continue. */
|
||||
warnx("%s: directory causes a cycle", curr->fts_path);
|
||||
this_failed = any_failed = 1;
|
||||
continue;
|
||||
}
|
||||
|
||||
/*
|
||||
* If we are in case (2) or (3) above, we need to append the
|
||||
* source name to the target name.
|
||||
*/
|
||||
if (type != FILE_TO_FILE) {
|
||||
if ((curr->fts_namelen +
|
||||
to.target_end - to.p_path + 1) > MAXPATHLEN) {
|
||||
warnx("%s/%s: name too long (not copied)",
|
||||
to.p_path, curr->fts_name);
|
||||
this_failed = any_failed = 1;
|
||||
continue;
|
||||
}
|
||||
|
||||
/*
|
||||
* Need to remember the roots of traversals to create
|
||||
* correct pathnames. If there's a directory being
|
||||
* copied to a non-existent directory, e.g.
|
||||
* cp -R a/dir noexist
|
||||
* the resulting path name should be noexist/foo, not
|
||||
* noexist/dir/foo (where foo is a file in dir), which
|
||||
* is the case where the target exists.
|
||||
*
|
||||
* Also, check for "..". This is for correct path
|
||||
* concatentation for paths ending in "..", e.g.
|
||||
* cp -R .. /tmp
|
||||
* Paths ending in ".." are changed to ".". This is
|
||||
* tricky, but seems the easiest way to fix the problem.
|
||||
*
|
||||
* XXX
|
||||
* Since the first level MUST be FTS_ROOTLEVEL, base
|
||||
* is always initialized.
|
||||
*/
|
||||
if (curr->fts_level == FTS_ROOTLEVEL) {
|
||||
if (type != DIR_TO_DNE) {
|
||||
p = strrchr(curr->fts_path, '/');
|
||||
base = (p == NULL) ? 0 :
|
||||
(int)(p - curr->fts_path + 1);
|
||||
|
||||
if (!strcmp(&curr->fts_path[base],
|
||||
".."))
|
||||
base += 1;
|
||||
} else
|
||||
base = curr->fts_pathlen;
|
||||
}
|
||||
|
||||
p = &curr->fts_path[base];
|
||||
nlen = curr->fts_pathlen - base;
|
||||
target_mid = to.target_end;
|
||||
if (*p != '/' && target_mid[-1] != '/')
|
||||
*target_mid++ = '/';
|
||||
*target_mid = 0;
|
||||
|
||||
if (target_mid - to.p_path + nlen >= PATH_MAX) {
|
||||
warnx("%s%s: name too long (not copied)",
|
||||
to.p_path, p);
|
||||
this_failed = any_failed = 1;
|
||||
continue;
|
||||
}
|
||||
(void)strncat(target_mid, p, nlen);
|
||||
to.p_end = target_mid + nlen;
|
||||
*to.p_end = 0;
|
||||
STRIP_TRAILING_SLASH(to);
|
||||
}
|
||||
|
||||
sval = Pflag ? lstat(to.p_path, &to_stat) : stat(to.p_path, &to_stat);
|
||||
/* Not an error but need to remember it happened */
|
||||
if (sval == -1)
|
||||
dne = 1;
|
||||
else {
|
||||
if (to_stat.st_dev == curr->fts_statp->st_dev &&
|
||||
to_stat.st_ino == curr->fts_statp->st_ino) {
|
||||
warnx("%s and %s are identical (not copied).",
|
||||
to.p_path, curr->fts_path);
|
||||
this_failed = any_failed = 1;
|
||||
if (S_ISDIR(curr->fts_statp->st_mode))
|
||||
(void)fts_set(ftsp, curr, FTS_SKIP);
|
||||
continue;
|
||||
}
|
||||
if (!S_ISDIR(curr->fts_statp->st_mode) &&
|
||||
S_ISDIR(to_stat.st_mode)) {
|
||||
warnx("cannot overwrite directory %s with non-directory %s",
|
||||
to.p_path, curr->fts_path);
|
||||
this_failed = any_failed = 1;
|
||||
continue;
|
||||
}
|
||||
dne = 0;
|
||||
}
|
||||
|
||||
switch (curr->fts_statp->st_mode & S_IFMT) {
|
||||
case S_IFLNK:
|
||||
/* Catch special case of a non dangling symlink */
|
||||
if((fts_options & FTS_LOGICAL) ||
|
||||
((fts_options & FTS_COMFOLLOW) && curr->fts_level == 0)) {
|
||||
if (copy_file(curr, dne))
|
||||
this_failed = any_failed = 1;
|
||||
} else {
|
||||
if (copy_link(curr, !dne))
|
||||
this_failed = any_failed = 1;
|
||||
}
|
||||
break;
|
||||
case S_IFDIR:
|
||||
if (!Rflag && !rflag) {
|
||||
if (curr->fts_info == FTS_D)
|
||||
warnx("%s is a directory (not copied).",
|
||||
curr->fts_path);
|
||||
(void)fts_set(ftsp, curr, FTS_SKIP);
|
||||
this_failed = any_failed = 1;
|
||||
break;
|
||||
}
|
||||
|
||||
/*
|
||||
* Directories get noticed twice:
|
||||
* In the first pass, create it if needed.
|
||||
* In the second pass, after the children have been copied, set the permissions.
|
||||
*/
|
||||
if (curr->fts_info == FTS_D) /* First pass */
|
||||
{
|
||||
/*
|
||||
* If the directory doesn't exist, create the new
|
||||
* one with the from file mode plus owner RWX bits,
|
||||
* modified by the umask. Trade-off between being
|
||||
* able to write the directory (if from directory is
|
||||
* 555) and not causing a permissions race. If the
|
||||
* umask blocks owner writes, we fail..
|
||||
*/
|
||||
pushdne(dne);
|
||||
if (dne) {
|
||||
if (mkdir(to.p_path,
|
||||
curr->fts_statp->st_mode | S_IRWXU) < 0)
|
||||
err(EXIT_FAILURE, "%s",
|
||||
to.p_path);
|
||||
/* NOTREACHED */
|
||||
} else if (!S_ISDIR(to_stat.st_mode)) {
|
||||
errno = ENOTDIR;
|
||||
err(EXIT_FAILURE, "%s",
|
||||
to.p_path);
|
||||
/* NOTREACHED */
|
||||
}
|
||||
}
|
||||
else if (curr->fts_info == FTS_DP) /* Second pass */
|
||||
{
|
||||
/*
|
||||
* If not -p and directory didn't exist, set it to be
|
||||
* the same as the from directory, umodified by the
|
||||
* umask; arguably wrong, but it's been that way
|
||||
* forever.
|
||||
*/
|
||||
if (pflag && setfile(curr->fts_statp, 0))
|
||||
this_failed = any_failed = 1;
|
||||
else if ((dne = popdne()))
|
||||
(void)chmod(to.p_path,
|
||||
curr->fts_statp->st_mode);
|
||||
}
|
||||
else
|
||||
{
|
||||
warnx("directory %s encountered when not expected.",
|
||||
curr->fts_path);
|
||||
this_failed = any_failed = 1;
|
||||
break;
|
||||
}
|
||||
|
||||
break;
|
||||
case S_IFBLK:
|
||||
case S_IFCHR:
|
||||
if (Rflag) {
|
||||
if (copy_special(curr->fts_statp, !dne))
|
||||
this_failed = any_failed = 1;
|
||||
} else
|
||||
if (copy_file(curr, dne))
|
||||
this_failed = any_failed = 1;
|
||||
break;
|
||||
case S_IFIFO:
|
||||
if (Rflag) {
|
||||
if (copy_fifo(curr->fts_statp, !dne))
|
||||
this_failed = any_failed = 1;
|
||||
} else
|
||||
if (copy_file(curr, dne))
|
||||
this_failed = any_failed = 1;
|
||||
break;
|
||||
default:
|
||||
if (copy_file(curr, dne))
|
||||
this_failed = any_failed = 1;
|
||||
break;
|
||||
}
|
||||
if (vflag && !this_failed)
|
||||
(void)printf("%s -> %s\n", curr->fts_path, to.p_path);
|
||||
}
|
||||
if (errno) {
|
||||
err(EXIT_FAILURE, "fts_read");
|
||||
/* NOTREACHED */
|
||||
}
|
||||
(void)fts_close(ftsp);
|
||||
return (any_failed);
|
||||
}
|
||||
|
|
@ -1,61 +0,0 @@
|
|||
/* $NetBSD: extern.h,v 1.17 2012/01/04 15:58:37 christos Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1991, 1993, 1994
|
||||
* The Regents of the University of California. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)extern.h 8.2 (Berkeley) 4/1/94
|
||||
*/
|
||||
|
||||
#ifndef _EXTERN_H_
|
||||
#define _EXTERN_H_
|
||||
|
||||
typedef struct {
|
||||
char *p_end; /* pointer to NULL at end of path */
|
||||
char *target_end; /* pointer to end of target base */
|
||||
char p_path[MAXPATHLEN + 1]; /* pointer to the start of a path */
|
||||
} PATH_T;
|
||||
|
||||
extern PATH_T to;
|
||||
extern uid_t myuid;
|
||||
extern int Rflag, rflag, Hflag, Lflag, Pflag, fflag, iflag, lflag, pflag, Nflag;
|
||||
extern mode_t myumask;
|
||||
extern sig_atomic_t pinfo;
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
|
||||
__BEGIN_DECLS
|
||||
int copy_fifo(struct stat *, int);
|
||||
int copy_file(FTSENT *, int);
|
||||
int copy_link(FTSENT *, int);
|
||||
int copy_special(struct stat *, int);
|
||||
int set_utimes(const char *, struct stat *);
|
||||
int setfile(struct stat *, int);
|
||||
void usage(void) __attribute__((__noreturn__));
|
||||
__END_DECLS
|
||||
|
||||
#endif /* !_EXTERN_H_ */
|
||||
|
|
@ -1,444 +0,0 @@
|
|||
/* $NetBSD: utils.c,v 1.42 2013/12/11 06:00:11 dholland Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1991, 1993, 1994
|
||||
* The Regents of the University of California. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
#ifndef lint
|
||||
#if 0
|
||||
static char sccsid[] = "@(#)utils.c 8.3 (Berkeley) 4/1/94";
|
||||
#else
|
||||
__RCSID("$NetBSD: utils.c,v 1.42 2013/12/11 06:00:11 dholland Exp $");
|
||||
#endif
|
||||
#endif /* not lint */
|
||||
|
||||
#include <sys/mman.h>
|
||||
#include <sys/param.h>
|
||||
#include <sys/stat.h>
|
||||
#include <sys/time.h>
|
||||
#include <sys/extattr.h>
|
||||
|
||||
#include <err.h>
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <fts.h>
|
||||
#include <stdbool.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include "extern.h"
|
||||
|
||||
#define MMAP_MAX_SIZE (8 * 1048576)
|
||||
#define MMAP_MAX_WRITE (64 * 1024)
|
||||
|
||||
int
|
||||
set_utimes(const char *file, struct stat *fs)
|
||||
{
|
||||
static struct timeval tv[2];
|
||||
|
||||
#ifdef __ANDROID__
|
||||
tv[0].tv_sec = fs->st_atime;
|
||||
tv[0].tv_usec = 0;
|
||||
tv[1].tv_sec = fs->st_mtime;
|
||||
tv[1].tv_usec = 0;
|
||||
|
||||
if (utimes(file, tv)) {
|
||||
warn("utimes: %s", file);
|
||||
return 1;
|
||||
}
|
||||
#else
|
||||
TIMESPEC_TO_TIMEVAL(&tv[0], &fs->st_atimespec);
|
||||
TIMESPEC_TO_TIMEVAL(&tv[1], &fs->st_mtimespec);
|
||||
|
||||
if (lutimes(file, tv)) {
|
||||
warn("lutimes: %s", file);
|
||||
return (1);
|
||||
}
|
||||
#endif
|
||||
return (0);
|
||||
}
|
||||
|
||||
struct finfo {
|
||||
const char *from;
|
||||
const char *to;
|
||||
size_t size;
|
||||
};
|
||||
|
||||
static void
|
||||
progress(const struct finfo *fi, size_t written)
|
||||
{
|
||||
int pcent = (int)((100.0 * written) / fi->size);
|
||||
|
||||
pinfo = 0;
|
||||
(void)fprintf(stderr, "%s => %s %zu/%zu bytes %d%% written\n",
|
||||
fi->from, fi->to, written, fi->size, pcent);
|
||||
}
|
||||
|
||||
int
|
||||
copy_file(FTSENT *entp, int dne)
|
||||
{
|
||||
static char buf[MAXBSIZE];
|
||||
struct stat to_stat, *fs;
|
||||
int ch, checkch, from_fd, rcount, rval, to_fd, tolnk, wcount;
|
||||
char *p;
|
||||
size_t ptotal = 0;
|
||||
|
||||
if ((from_fd = open(entp->fts_path, O_RDONLY, 0)) == -1) {
|
||||
warn("%s", entp->fts_path);
|
||||
return (1);
|
||||
}
|
||||
|
||||
to_fd = -1;
|
||||
fs = entp->fts_statp;
|
||||
tolnk = ((Rflag && !(Lflag || Hflag)) || Pflag);
|
||||
|
||||
/*
|
||||
* If the file exists and we're interactive, verify with the user.
|
||||
* If the file DNE, set the mode to be the from file, minus setuid
|
||||
* bits, modified by the umask; arguably wrong, but it makes copying
|
||||
* executables work right and it's been that way forever. (The
|
||||
* other choice is 666 or'ed with the execute bits on the from file
|
||||
* modified by the umask.)
|
||||
*/
|
||||
if (!dne) {
|
||||
struct stat sb;
|
||||
int sval;
|
||||
|
||||
if (iflag) {
|
||||
(void)fprintf(stderr, "overwrite %s? ", to.p_path);
|
||||
checkch = ch = getchar();
|
||||
while (ch != '\n' && ch != EOF)
|
||||
ch = getchar();
|
||||
if (checkch != 'y' && checkch != 'Y') {
|
||||
(void)close(from_fd);
|
||||
return (0);
|
||||
}
|
||||
}
|
||||
|
||||
sval = tolnk ?
|
||||
lstat(to.p_path, &sb) : stat(to.p_path, &sb);
|
||||
if (sval == -1) {
|
||||
warn("stat: %s", to.p_path);
|
||||
(void)close(from_fd);
|
||||
return (1);
|
||||
}
|
||||
|
||||
if (!(tolnk && S_ISLNK(sb.st_mode)))
|
||||
to_fd = open(to.p_path, O_WRONLY | O_TRUNC, 0);
|
||||
} else
|
||||
to_fd = open(to.p_path, O_WRONLY | O_TRUNC | O_CREAT,
|
||||
fs->st_mode & ~(S_ISUID | S_ISGID));
|
||||
|
||||
if (to_fd == -1 && (fflag || tolnk)) {
|
||||
/*
|
||||
* attempt to remove existing destination file name and
|
||||
* create a new file
|
||||
*/
|
||||
(void)unlink(to.p_path);
|
||||
to_fd = open(to.p_path, O_WRONLY | O_TRUNC | O_CREAT,
|
||||
fs->st_mode & ~(S_ISUID | S_ISGID));
|
||||
}
|
||||
|
||||
if (to_fd == -1) {
|
||||
warn("%s", to.p_path);
|
||||
(void)close(from_fd);
|
||||
return (1);
|
||||
}
|
||||
|
||||
rval = 0;
|
||||
|
||||
/* if hard linking then simply close the open fds, link and return */
|
||||
if (lflag) {
|
||||
(void)close(from_fd);
|
||||
(void)close(to_fd);
|
||||
(void)unlink(to.p_path);
|
||||
if (link(entp->fts_path, to.p_path)) {
|
||||
warn("%s", to.p_path);
|
||||
return (1);
|
||||
}
|
||||
return (0);
|
||||
}
|
||||
|
||||
/*
|
||||
* There's no reason to do anything other than close the file
|
||||
* now if it's empty, so let's not bother.
|
||||
*/
|
||||
#ifndef __ANDROID__ // Files in /proc report length 0. mmap will fail but we'll fall back to read.
|
||||
if (fs->st_size > 0) {
|
||||
#endif
|
||||
struct finfo fi;
|
||||
|
||||
fi.from = entp->fts_path;
|
||||
fi.to = to.p_path;
|
||||
fi.size = (size_t)fs->st_size;
|
||||
|
||||
/*
|
||||
* Mmap and write if less than 8M (the limit is so
|
||||
* we don't totally trash memory on big files).
|
||||
* This is really a minor hack, but it wins some CPU back.
|
||||
*/
|
||||
bool use_read;
|
||||
|
||||
use_read = true;
|
||||
if (fs->st_size <= MMAP_MAX_SIZE) {
|
||||
size_t fsize = (size_t)fs->st_size;
|
||||
p = mmap(NULL, fsize, PROT_READ, MAP_FILE|MAP_SHARED,
|
||||
from_fd, (off_t)0);
|
||||
if (p != MAP_FAILED) {
|
||||
size_t remainder;
|
||||
|
||||
use_read = false;
|
||||
|
||||
(void) madvise(p, (size_t)fs->st_size,
|
||||
MADV_SEQUENTIAL);
|
||||
|
||||
/*
|
||||
* Write out the data in small chunks to
|
||||
* avoid locking the output file for a
|
||||
* long time if the reading the data from
|
||||
* the source is slow.
|
||||
*/
|
||||
remainder = fsize;
|
||||
do {
|
||||
ssize_t chunk;
|
||||
|
||||
chunk = (remainder > MMAP_MAX_WRITE) ?
|
||||
MMAP_MAX_WRITE : remainder;
|
||||
if (write(to_fd, &p[fsize - remainder],
|
||||
chunk) != chunk) {
|
||||
warn("%s", to.p_path);
|
||||
rval = 1;
|
||||
break;
|
||||
}
|
||||
remainder -= chunk;
|
||||
ptotal += chunk;
|
||||
if (pinfo)
|
||||
progress(&fi, ptotal);
|
||||
} while (remainder > 0);
|
||||
|
||||
if (munmap(p, fsize) < 0) {
|
||||
warn("%s", entp->fts_path);
|
||||
rval = 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (use_read) {
|
||||
while ((rcount = read(from_fd, buf, MAXBSIZE)) > 0) {
|
||||
wcount = write(to_fd, buf, (size_t)rcount);
|
||||
if (rcount != wcount || wcount == -1) {
|
||||
warn("%s", to.p_path);
|
||||
rval = 1;
|
||||
break;
|
||||
}
|
||||
ptotal += wcount;
|
||||
if (pinfo)
|
||||
progress(&fi, ptotal);
|
||||
}
|
||||
if (rcount < 0) {
|
||||
warn("%s", entp->fts_path);
|
||||
rval = 1;
|
||||
}
|
||||
}
|
||||
#ifndef __ANDROID__
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifndef __ANDROID__
|
||||
if (pflag && (fcpxattr(from_fd, to_fd) != 0))
|
||||
warn("%s: error copying extended attributes", to.p_path);
|
||||
#endif
|
||||
|
||||
(void)close(from_fd);
|
||||
|
||||
if (rval == 1) {
|
||||
(void)close(to_fd);
|
||||
return (1);
|
||||
}
|
||||
|
||||
if (pflag && setfile(fs, to_fd))
|
||||
rval = 1;
|
||||
/*
|
||||
* If the source was setuid or setgid, lose the bits unless the
|
||||
* copy is owned by the same user and group.
|
||||
*/
|
||||
#define RETAINBITS \
|
||||
(S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO)
|
||||
if (!pflag && dne
|
||||
&& fs->st_mode & (S_ISUID | S_ISGID) && fs->st_uid == myuid) {
|
||||
if (fstat(to_fd, &to_stat)) {
|
||||
warn("%s", to.p_path);
|
||||
rval = 1;
|
||||
} else if (fs->st_gid == to_stat.st_gid &&
|
||||
fchmod(to_fd, fs->st_mode & RETAINBITS & ~myumask)) {
|
||||
warn("%s", to.p_path);
|
||||
rval = 1;
|
||||
}
|
||||
}
|
||||
if (close(to_fd)) {
|
||||
warn("%s", to.p_path);
|
||||
rval = 1;
|
||||
}
|
||||
/* set the mod/access times now after close of the fd */
|
||||
if (pflag && set_utimes(to.p_path, fs)) {
|
||||
rval = 1;
|
||||
}
|
||||
return (rval);
|
||||
}
|
||||
|
||||
int
|
||||
copy_link(FTSENT *p, int exists)
|
||||
{
|
||||
int len;
|
||||
char target[MAXPATHLEN];
|
||||
|
||||
if ((len = readlink(p->fts_path, target, sizeof(target)-1)) == -1) {
|
||||
warn("readlink: %s", p->fts_path);
|
||||
return (1);
|
||||
}
|
||||
target[len] = '\0';
|
||||
if (exists && unlink(to.p_path)) {
|
||||
warn("unlink: %s", to.p_path);
|
||||
return (1);
|
||||
}
|
||||
if (symlink(target, to.p_path)) {
|
||||
warn("symlink: %s", target);
|
||||
return (1);
|
||||
}
|
||||
return (pflag ? setfile(p->fts_statp, 0) : 0);
|
||||
}
|
||||
|
||||
int
|
||||
copy_fifo(struct stat *from_stat, int exists)
|
||||
{
|
||||
if (exists && unlink(to.p_path)) {
|
||||
warn("unlink: %s", to.p_path);
|
||||
return (1);
|
||||
}
|
||||
if (mkfifo(to.p_path, from_stat->st_mode)) {
|
||||
warn("mkfifo: %s", to.p_path);
|
||||
return (1);
|
||||
}
|
||||
return (pflag ? setfile(from_stat, 0) : 0);
|
||||
}
|
||||
|
||||
int
|
||||
copy_special(struct stat *from_stat, int exists)
|
||||
{
|
||||
if (exists && unlink(to.p_path)) {
|
||||
warn("unlink: %s", to.p_path);
|
||||
return (1);
|
||||
}
|
||||
if (mknod(to.p_path, from_stat->st_mode, from_stat->st_rdev)) {
|
||||
warn("mknod: %s", to.p_path);
|
||||
return (1);
|
||||
}
|
||||
return (pflag ? setfile(from_stat, 0) : 0);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Function: setfile
|
||||
*
|
||||
* Purpose:
|
||||
* Set the owner/group/permissions for the "to" file to the information
|
||||
* in the stat structure. If fd is zero, also call set_utimes() to set
|
||||
* the mod/access times. If fd is non-zero, the caller must do a utimes
|
||||
* itself after close(fd).
|
||||
*/
|
||||
int
|
||||
setfile(struct stat *fs, int fd)
|
||||
{
|
||||
int rval, islink;
|
||||
|
||||
rval = 0;
|
||||
islink = S_ISLNK(fs->st_mode);
|
||||
fs->st_mode &= S_ISUID | S_ISGID | S_IRWXU | S_IRWXG | S_IRWXO;
|
||||
|
||||
/*
|
||||
* Changing the ownership probably won't succeed, unless we're root
|
||||
* or POSIX_CHOWN_RESTRICTED is not set. Set uid/gid before setting
|
||||
* the mode; current BSD behavior is to remove all setuid bits on
|
||||
* chown. If chown fails, lose setuid/setgid bits.
|
||||
*/
|
||||
if (fd ? fchown(fd, fs->st_uid, fs->st_gid) :
|
||||
lchown(to.p_path, fs->st_uid, fs->st_gid)) {
|
||||
if (errno != EPERM) {
|
||||
warn("chown: %s", to.p_path);
|
||||
rval = 1;
|
||||
}
|
||||
fs->st_mode &= ~(S_ISUID | S_ISGID);
|
||||
}
|
||||
#ifdef __ANDROID__
|
||||
if (fd ? fchmod(fd, fs->st_mode) : chmod(to.p_path, fs->st_mode)) {
|
||||
#else
|
||||
if (fd ? fchmod(fd, fs->st_mode) : lchmod(to.p_path, fs->st_mode)) {
|
||||
#endif
|
||||
warn("chmod: %s", to.p_path);
|
||||
rval = 1;
|
||||
}
|
||||
|
||||
#ifndef __ANDROID__
|
||||
if (!islink && !Nflag) {
|
||||
unsigned long fflags = fs->st_flags;
|
||||
/*
|
||||
* XXX
|
||||
* NFS doesn't support chflags; ignore errors unless
|
||||
* there's reason to believe we're losing bits.
|
||||
* (Note, this still won't be right if the server
|
||||
* supports flags and we were trying to *remove* flags
|
||||
* on a file that we copied, i.e., that we didn't create.)
|
||||
*/
|
||||
errno = 0;
|
||||
if ((fd ? fchflags(fd, fflags) :
|
||||
chflags(to.p_path, fflags)) == -1)
|
||||
if (errno != EOPNOTSUPP || fs->st_flags != 0) {
|
||||
warn("chflags: %s", to.p_path);
|
||||
rval = 1;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
/* if fd is non-zero, caller must call set_utimes() after close() */
|
||||
if (fd == 0 && set_utimes(to.p_path, fs))
|
||||
rval = 1;
|
||||
return (rval);
|
||||
}
|
||||
|
||||
void
|
||||
usage(void)
|
||||
{
|
||||
(void)fprintf(stderr,
|
||||
"usage: %s [-R [-H | -L | -P]] [-f | -i] [-alNpv] src target\n"
|
||||
" %s [-R [-H | -L | -P]] [-f | -i] [-alNpv] src1 ... srcN directory\n",
|
||||
getprogname(), getprogname());
|
||||
exit(1);
|
||||
/* NOTREACHED */
|
||||
}
|
||||
Loading…
Reference in New Issue