warning: comparison of integer expressions of different signedness
Fix By: Daniel Stenberg (@bagder)
Brad House (8 Oct 2023)
- fix README.md
GitHub (8 Oct 2023)
- [Brad House brought this change]
1.20.1 release (#563)
- [Brad House brought this change]
fix reference to freed memory (#562)
Issue #561 shows free'd memory could be accessed in some error conditions.
Fixes Issue #561
Fix By: Brad House (@bradh352)
Brad House (8 Oct 2023)
- reported build/test systems may timeout on intensive tests. reduce test case to still be relevant but to reduce false positive errors
GitHub (8 Oct 2023)
- [Gregor Jasny brought this change]
Regression: Fix typo in fuzzcheck target name (#559)
This seems to be a vim'esque typo introduced with c1b00c41.
Fix By: Gregor Jasny (@gjasny)
Version 1.20.0 (6 Oct 2023)
Brad House (6 Oct 2023)
- fix slist search off by 1
GitHub (6 Oct 2023)
- [Brad House brought this change]
1.20.0 release prep (#557)
- [Brad House brought this change]
ares__buf should return standard error codes. more helpers implemented. (#558)
The purpose of this PR is to hopefully make the private API of this set of routines less likely to need to be changed in a future release. While this is not a public API, it could become harder in the future to change usage as it becomes more widely used within c-ares.
Fix By: Brad House (@bradh352)
- [Brad House brought this change]
Update from 1989 MIT license text to modern MIT license text (#556)
ares (and thus c-ares) was originally licensed under the 1989 MIT license text:
This change updates the license to the modern MIT license as recognized here:
https://opensource.org/license/mit/
care has been taken to ensure correct attributions remain for the authors contained within the copyright headers, and all authors with attributions in the headers have been contacted for approval regarding the change. Any authors which were not able to be contacted, the original copyright maintains, luckily that exists in only a single file `ares_parse_caa_reply.c` at this time.
Please see PR #556 for the documented approvals by each contributor.
Fix By: Brad House (@bradh352)
- [Brad House brought this change]
Test Harness: use ares_timeout() to calculate the value to pass to select() these days. (#555)
The test framework was using 100ms timeout passed to select(), and not using ares_timeout() to calculate the actual recommended value based on the queries in queue. Using ares_timeout() tests the functionality of ares_timeout() itself and will provide more responsive results.
Fix By: Brad House (@bradh352)
- [Brad House brought this change]
Fix for TCP back to back queries (#552)
As per #266, TCP queries are basically broken. If we get a partial reply, things just don't work, but unlike UDP, TCP may get fragmented and we need to properly handle that.
I've started creating a basic parser/buffer framework for c-ares for memory safety reasons, but it also helps for things like this where we shouldn't be manually tracking positions and fetching only a couple of bytes at a time from a socket. This parser/buffer will be expanded and used more in the future.
This also resolves #206 by allowing NULL to be specified for some socket callbacks so they will auto-route to the built-in c-ares functions.
Fixes: #206, #266
Fix By: Brad House (@bradh352)
- [Brad House brought this change]
remove acountry from built tools as nerd.dk is gone (#554)
The acountry utility required a third party DNSBL service from nerd.dk in order to operate. That service has been offline for about a year and there is no other comparable service offering. We are keeping the code in the repository as an example, but no longer building it.
Fixes: #537
Fix By: Brad House (@bradh352)
- [Brad House brought this change]
Don't requeue any queries for getaddrinfo() during destruction. (#553)
During ares_destroy(), any outstanding queries are terminated, however ares_getaddrinfo() had an ordering issue with status codes which in some circumstances could lead to a new query being enqueued rather than honoring the termination.
Fixes #532
Fix By: @Chilledheart and Brad House (@bradh352)
- [Brad House brought this change]
ares_getaddrinfo(): Fail faster on AF_UNSPEC if we've already received one address class (#551)
As per #541, when using AF_UNSPEC with ares_getaddrinfo() (and in turn with ares_gethostbynam()) if we receive a successful response for one address class, we should not allow the other address class to continue on with retries, just return the address class we have.
This will limit the overall query time to whatever timeout remains for the pending query for the other address class, it will not, however, terminate the other query as it may still prove to be successful (possibly coming in less than a millisecond later) and we'd want that result still. It just turns off additional error processing to get the result back quicker.
Fixes Bug: #541
Fix By: Brad House (@bradh352)
- [Sam Morris brought this change]
Avoid producing an ill-formed result when qualifying a name with the root domain (#546)
This prevents the result of qualifying "name" with "." being "name.." which is ill-formed.
Fixes Bug: #545
Fix By: Sam Morris (@yrro)
- [Brad House brought this change]
Configuration option to limit number of UDP queries per ephemeral port (#549)
Add a new ARES_OPT_UDP_MAX_QUERIES option with udp_max_queries parameter that can be passed to ares_init_options(). This value defaults to 0 (unlimited) to maintain existing compatibility, any positive number will cause new UDP ephemeral ports to be created once the threshold is reached, we'll call these 'connections' even though its technically wrong for UDP.
Implementation Details:
* Each server entry in a channel now has a linked-list of connections/ports for udp and tcp. The first connection in the list is the one most likely to be eligible to accept new queries.
* Queries are now tracked by connection rather than by server.
* Every time a query is detached from a connection, the connection that it was attached to will be checked to see if it needs to be cleaned up.
* Insertion, lookup, and searching for connections has been implemented as O(1) complexity so the number of connections will not impact performance.
* Remove is_broken from the server, it appears it would be set and immediately unset, so must have been invalidated via a prior patch. A future patch should probably track consecutive server errors and de-prioritize such servers. The code right now will always try servers in the order of configuration, so a bad server in the list will always be tried and may rely on timeout logic to try the next.
* Various other cleanups to remove code duplication and for clarification.
Fixes Bug: #444
Fix By: Brad House (@bradh352)
- [Brad House brought this change]
its not 1991 anymore, lower default timeout and retry count (#542)
A lot of time has passed since the original timeouts and retry counts were chosen. We have on and off issues reported due to this. Even on geostationary satellite links, latency is worst case around 1.5s. This PR changes the per-server timeout to 2s and the retry count lowered from 4 to 3.
Fix By: Brad House (@bradh352)
- [Brad House brought this change]
Modernization: Implement base data-structures and replace usage (#540)
c-ares currently lacks modern data structures that can make coding easier and more efficient. This PR implements a new linked list, skip list (sorted linked list), and hashtable implementation that are easy to use and hard to misuse. Though these implementations use more memory allocations than the prior implementation, the ability to more rapidly iterate on the codebase is a bigger win than any marginal performance difference (which is unlikely to be visible, modern systems are much more powerful than when c-ares was initially created).
The data structure implementation favors readability and audit-ability over performance, however using the algorithmically correct data type for the purpose should offset any perceived losses.
The primary motivation for this PR is to facilitate future implementation for Issues #444, #135, #458, and possibly #301
A couple additional notes:
The ares_timeout() function is now O(1) complexity instead of O(n) due to the use of a skiplist.
Some obscure bugs were uncovered which were actually being incorrectly validated in the test cases. These have been addressed in this PR but are not explicitly discussed.
Fixed some dead code warnings in ares_rand for systems that don't need rc4
Fix By: Brad House (@bradh352)
- [Jérôme Duval brought this change]
fix missing prefix for CMake generated libcares.pc (#530)
'pkg-config grpc --cflags' complains with:
Variable 'prefix' not defined in libcares.pc
Fix By: Jérôme Duval (@korli)
bradh352 (11 Jul 2023)
- windows get_DNS_Windows port fix for ipv6
- windows get_DNS_Windows port is in network byte order
- backoff to debian 11 due to coverage check failure
- extend on PR #534, windows should also honor a port
GitHub (11 Jul 2023)
- [Brad House brought this change]
Support configuration of DNS server ports (#534)
As per https://man.openbsd.org/OpenBSD-5.1/resolv.conf.5 we should
support bracketed syntax for resolv.conf entries to contain an optional
port number.
We also need to utilize this format for configuration of MacOS
DNS servers as seen when using the Viscosity OpenVPN client, where
it starts a private DNS server listening on localhost on a non-standard
port.
Fix By: Brad House (@bradh352)
Daniel Stenberg (9 Jun 2023)
- provide SPDX identifiers and a REUSE CI job to verify
All files have their licence and copyright information clearly
identifiable. If not in the file header, they are set separately in
.reuse/dep5.
All used license texts are provided in LICENSES/
GitHub (30 May 2023)
- [Alexey A Tikhonov brought this change]
Remove unreachable code as reported by Coverity (#527)
Coverity reported some code as unreachable. A manual inspection confirmed the reports.
Fix By: Alexey A Tikhonov (@alexey-tikhonov)
- [Ben Noordhuis brought this change]
rand: add support for getrandom() (#526)
glibc provides arc4random_buf() but musl does not and /dev/urandom is
not always available.
- [Tim Wojtulewicz brought this change]
Replace uses of sprintf with snprintf (#525)
sprintf isn't safe even if you think you are using it right. Switch to snprintf().
Fix By: Tim Wojtulewicz (@timwoj)
bradh352 (23 May 2023)
- update version and release procedure
GitHub (22 May 2023)
- [Douglas R. Reno brought this change]
INSTALL.md: Add Watcom instructions and update Windows documentation URLs (#524)
This commit adds instructions on how to use the WATCOM compiler to build c-ares. This was just tested on c-ares-1.19.1 and works well.
While going through the links for the C Runtime documentation for Windows systems, I discovered that all three of the KB articles that were linked are now nonexistent. This commit replaces KB94248 with the current replacement available on Microsoft's website, which also makes the other two KB articles obsolete.
Fix By: Douglas R. Reno (@renodr)
Version 1.19.1 (22 May 2023)
bradh352 (22 May 2023)
- Makefile.inc Windows requires tabs not spaces for nmake
GitHub (22 May 2023)
- [Daniel Stenberg brought this change]
ares_expand_name: fix compiler warnings (#522)
Fix some compiler warnings (not introduced in this release)
Fix By: Daniel Stenberg (@bagder)
bradh352 (22 May 2023)
- windows MSVC compiler fix on 32bit
- update security advisory links
- minor CI issues fixes for imported inet_net_pton
- ares_rand static analysis fixes from CI
- windows build fix
- security release notes
GitHub (22 May 2023)
- [Brad House brought this change]
Merge pull request from GHSA-9g78-jv2r-p7vc
- [Brad House brought this change]
Merge pull request from GHSA-x6mf-cxr9-8q6v
* Merged latest OpenBSD changes for inet_net_pton_ipv6() into c-ares.
* Always use our own IP conversion functions now, do not delegate to OS
so we can have consistency in testing and fuzzing.
* Removed bogus test cases that never should have passed.
* Add new test case for crash bug found.
Fix By: Brad House (@bradh352)
- [Brad House brought this change]
Merge pull request from GHSA-8r8p-23f3-64c2
* segment random number generation into own file
* abstract random code to make it more modular so we can have multiple backends
* rand: add support for arc4random_buf() and also direct CARES_RANDOM_FILE reading
* autotools: fix detection of arc4random_buf
* rework initial rc4 seed for PRNG as last fallback
* rc4: more proper implementation, simplified for clarity
* clarifications
bradh352 (20 May 2023)
- add public release note information
- bump version to 1.19.1
GitHub (6 May 2023)
- [Gregor Jasny brought this change]
test: fix warning about uninitialized memory (#515)
fix warning in tests
Fix By: Gregor Jasny (@gjasny)
- [lifenjoiner brought this change]
Turn off IPV6_V6ONLY on Windows if it is supported (#520)
Turn off IPV6_V6ONLY on Windows if it is supported, support for IPv4-mapped IPv6 addresses.
- [Nikolaos Chatzikonstantinou brought this change]
use strncasecmp in ares__strsplit (#512)
strncasecmp on platforms that don't already have it is already #define'd to a private implementation. There is no need to have OS-specific logic. Also removes ares__strsplit.h as a header as ares_private.h already includes it.
Windows: Invalid stack variable out of scope for HOSTS file path (#502)
In some conditions Windows might try to use a stack address that has gone out of scope when determining where to read the hosts data from for file lookups.
Fix By: @Chilledheart
- [Brad House brought this change]
sync ax_cxx_compile_stdcxx_11.m4 with upstream (#505)
It was reported that ax_cxx_compile_stdcxx_11.m4 was not compatible with uclibc.
The version in the repository is many years old so this PR simply pulls in the latest
Old FreeBSD image for CirrusCI has issues with newer symbols, update to later one.
Fix By: Brad House (@bradh352)
GitHub (23 Oct 2022)
- [Stephen Sachs brought this change]
Fix Intel compiler deprecated options (#485)
Options `-we ###` and `-wd ###` should not include a whitespace. They are also deprecated and `-diag-error` and `-diag-disable` are their replacements.
Intel compiler 2021.6 is not able to be used in configure without the proposed patch.
Fix By: Stephen Sachs (@stephenmsachs)
- [Jonathan Ringer brought this change]
Allow for CMake to use absolute install paths (#486)
Generated libcares.pc could have bad paths when using absolute paths.
Fix By: Jonathan Ringer (@jonringer)
- [Thomas Dreibholz brought this change]
Fix for issue #488: ensure that the number of iovec entries does not exceed system limits. (#489)
c-ares could try to exceed maximum number of iovec entries supported by system.
Fix By: Thomas Dreibholz (@dreibh)
- [bsergean brought this change]
Add include guards to ares_data.h (#491)
All the other header files in the src/lib folder do have an include guard so it look like an overthought.
Fix By: @bsergean
- [Brad Spencer brought this change]
Fix typo in docs for ares_process_fd (#490)
A single letter was missing
Fix By: Brad Spencer (@b-spencer)
- [lifenjoiner brought this change]
tools: refine help (#481)
fix invalid help options and documentation typos
Fix By: @lifenjoiner
- [lifenjoiner brought this change]
Git: ignore CMake temporary files (#480)
exclude more files from git
Fix By: @lifenjoiner
- [lifenjoiner brought this change]
adig: fix `-T` option (#479)
Helper was missing flag to enable TCP mode of operation.
Fix By: @lifenjoiner
- [Frank brought this change]
Add vcpkg installation instructions (#478)
Update to include vcpkg installation instructions
Fix By: @FrankXie05
- [marc-groundctl brought this change]
Convert total timeout to per-query (#467)
On Apple platforms, libresolv reports the total timeout in retrans, not the per-query time. This patch undoes that math to get the per-query time, which is what c-ares expects. This is not perfect because libresolv is inconsistent on whether the timeout is multiplied by retry or retry+1, but I don't see any way to distinguish these cases.
Fix By: Marc Aldorasi (@marc-groundctl)
- [marc-groundctl brought this change]
Don't include version info in the static library (#468)
The static library should not contain version info, since it would be linked into an executable or dll with its own version info.
Fix By: @marc-groundctl
- [Ridge Kennedy brought this change]
Fix ares_getaddrinfo() numerical address fast path with AF_UNSPEC (#469)
The conversion of numeric IPv4 addresses in fake_addrinfo() is broken when
the family is AF_UNSPEC. The initial call to ares_inet_pton with AF_INET
will succeed, but the subsequent call using AF_INET6 will fail. This results
in the fake_addrinfo() fast path failing, and ares_getaddrinfo() making a
query when none should be required.
Resolve this by only attempting the call to ares_inet_pton with AF_INET6
if the initial call with AF_INET was unsuccessful.
Fix By: Ridge Kennedy (@ridgek)
- [Manish Mehra brought this change]
Configurable hosts path for file_lookup (#465)
This changeset adds support for configurable hosts file
ARES_OPT_HOSTS_FILE (similar to ARES_OPT_RESOLVCONF).
Co-authored-by: Manish Mehra (@mmehra)
bradh352 (27 Apr 2022)
- CMake: Windows DLLs lack version information
The cares.rc was not included in the build for CMake. Conditionally
add it when building for Windows.
Fix By: Brad House (@bradh352)
Fixes Bug: #460
GitHub (27 Apr 2022)
- [Kai Pastor brought this change]
CMake: Guard target creation in exported config (#464)
User projects may call 'find_package(c-ares)' multiple times (e.g.
via dependencies), but targets must be created only once.
Shared and static target must be treated independently.
Fix By: Kai Pastor (@dg0yt)
bradh352 (27 Apr 2022)
- Honor valid DNS result even if other class returned an error
When using ares_getaddrinfo() with PF_UNSPEC, if a DNS server returned
good data on an A record, followed by bad data on an AAAA record, the
good record would be thrown away and an error returned.
If we got a good response from one of the two queries, regardless of
the order returned, we should honor that.
Fix By: Dmitry Karpov (dkarpov@roku.com)
Signed Off By: Brad House (@bradh352)
GitHub (2 Apr 2022)
- [Sam James brought this change]
configure.ac: fix STDC_HEADERS typo (#459)
There is no autoconf macro called STDC_HEADERS. AC_HEADER_STDC however does
exist and it defines the STDC_HEADERS macro for use.
Not clear that STDC_HEADERS from its use in the repo is needed but
would rather not meddle with it for now.
Fixes an annoying warning on `./configure`:
```
/var/tmp/portage/net-dns/c-ares-1.18.1/work/c-ares-1.18.1/configure: 24546: STDC_HEADERS: not found
```
Signed-off-by: Sam James <sam@gentoo.org>
bradh352 (2 Mar 2022)
- Asterisks should be allowed in host validation as CNAMEs may reference wildcard domains
CloudFlare appears to use this logic in CNAMEs as per
https://github.com/nodejs/node/issues/42171
Fixes: #457
Fix By: Brad House (@bradh352)
- Don't return on file lookup failure, set status
When resolving a host via /etc/hosts, don't return with a predefined
error as there may be other tries.
Fix By: Brad House (@bradh352)
- 'localhost' special treatment enhancement
Since localhost is special-cased, any errors should be ignored when
reading /etc/hosts as otherwise we could return an error if there
were for instance an invalidly formatted /etc/hosts or if /etc/hosts
had a permissions error while reading.
This exact behavior appears to have been seen on OS/400 PASE
environments which allows AIX binares to run.
Fix By: Brad House (@bradh352)
- If chain building c-ares as part of another project, detect of res_servicename could fail (#451)
If libresolv is already included with the build, c-ares wouldn't properly detect its use.
May fix: #451
Fix by: Brad House (@bradh352)
- no analyze capability on ios
- attempt to use scan-build on ios
- disable tests on ios
- fix switch statement
- code coverage had gotten disabled
- looks like shell expansion doesn't work with cirrus-ci, lets do it another way
- attempt to autobuild for iOS
GitHub (8 Dec 2021)
- [Brad House brought this change]
Windows: rework/simplify initialization code, drop long EOL systems (#445)
There was a lot of windows initialization code specific to the era that predates Windows Vista such as reading DNS configuration from the registry, and dynamically loading libraries to get access to functions that didn't exist in XP or earlier releases.
Vista was released in January 2007, and was EOL'd in 2017, and support for Vista is still maintained with this patch set.
XP was EOL'd in Apr 8 2014.
I believe the last OS based on something earlier than Vista was POSReady 2009, as it was XP based for some reason, and that was EOL'd in January 2019. Considering any POS system falls under the PCI-DSS rules, they aren't allow to run POSReady 2009 any more so there is no reason to try to continue supporting such systems.
We have also targeted with our build system Vista support for the last few years, and while developers could change the target, we haven't had any reports that they have.
bradh352 (9 Nov 2021)
- Fix memory leak in reading /etc/hosts
When an /etc/hosts lookup is performed, but fails with ENOTFOUND, and
a valid RFC6761 Section 6.3 fallback is performed, it could overwrite
variables that were already set and therefore leave the pointers
dangling, never to be cleaned up.
Clean up explicitly on ENOTFOUND when returning from the file parser.
Fixes: #439
Fix By: Brad House (@bradh352)
GitHub (2 Nov 2021)
- [Bobby Reynolds brought this change]
Fix cross-compilation from Windows to Linux due to CPACK logic (#436)
When determining value for CPACK_PACKAGE_ARCHITECTURE, prefer to use
value from CMAKE_SYSTEM_PROCESSOR before falling back to uname output.
Additionally, if building from a Windows host, emit a fatal error
instead of attempting to call uname.
Fix By: Bobby Reynolds (@reynoldsbd)
bradh352 (1 Nov 2021)
- fix coveralls link
- coveralls needs token
- coveralls appears to require git
- fix a couple of coveralls vars
- more coveralls fixes
- add code coverage libs to LDADD instead of _LIBS
- make verbose
- try to fix code coverage building
- need -y for install
- try to fix asan/ubsan/lsan when built with clang. try to support code coverage properly.
- try another path
- fix pip
- attempt to enable some other build types that travis supported
- ares_getaddrinfo() was returning the wrong size for ai_addrlen
ai_addrlen was erroneously returning 16 bytes instead of the
sizeof(struct sockaddr_in6). This is a regression introduced
in 1.18.0.
Reported by: James Brown <jbrown@easypost.com>
Fix By: Brad House (@bradh352)
- Windows: autotools force linking to iphlpapi
GitHub (26 Oct 2021)
- [Gregor Jasny brought this change]
Fix typo detected by lintian (#434)
typo in docs for ares_parse_uri_reply
Fix By: Gregor Jasny (@gjasny)
Version 1.18.0 (25 Oct 2021)
bradh352 (25 Oct 2021)
- replace Travis badge with Cirrus-CI badge
- c-ares 1.18.0 release prep
GitHub (21 Oct 2021)
- [Jérôme Duval brought this change]
Haiku: port (#431)
Port for Haiku. Slight CMake changes, header changes, and resolv.conf/hosts paths specific to Haiku.
Port By: Jérôme Duval (@korli)
bradh352 (19 Oct 2021)
- valgrind: fix reported invalid read
- make sure distcheck runs
- detect oddities and skip test if necessary
- fix null ptr deref in strlen
- bend over backwards for testing file access, something is weird on debian
- chmod(fn, 0) is failing on debian
- maybe process needs to be called
- split test output
- clean up a couple of compiler warnings
- use helper function for addrinfo to simplify code
- INSTANTIATE_TEST_CASE_P -> INSTANTIATE_TEST_SUITE_P as new convention in googletest
- gmock: update from 1.8.0 to 1.11.0
- Cirrus-CI: fix debian arm build
- Cirrus-CI: more updates for proper testing
- install proper packages for asan and analyze
- fix crash in tests
- try to disable container tests
- need g++ for tests on debian
- try cirrus-ci again
- whitespace
- start bringing up cirrus-ci
- prep for adding new ci
- fix cut and paste error
GitHub (18 Oct 2021)
- [Brad House brought this change]
RFC6761: special case "localhost" (#430)
As per RFC6761 Section 6.3, "localhost" lookups need to be special cased to return loopback addresses, and not forward queries to recursive dns servers.
We first look up via files (/etc/hosts or equivalent), and if that fails, we then attempt a system-specific address enumeration for loopback addresses (currently Windows-only), and finally fallback to ::1 and 127.0.0.1.
Fix By: Brad House (@bradh352)
Fixes Bug: #399
- [Brad House brought this change]
Reimplement ares_gethostbyname() by wrapping ares_getaddrinfo() (#428)
ares_gethostbyname() and ares_getaddrinfo() do a lot of similar things, however ares_getaddrinfo() has some desirable behaviors that should be imported into ares_gethostbyname(). For one, it sorts the address lists for the most likely to succeed based on the current system routes. Next, when AF_UNSPEC is specified, it properly handles search lists instead of first searching all of AF_INET6 then AF_INET, since ares_gethostbyname() searches in parallel. Therefore, this PR should also resolve the issues attempted in #94.
A few things this PR does:
1. ares_parse_a_reply() and ares_parse_aaaa_reply() had very similar code to translate struct ares_addrinfo into a struct hostent as well as into struct ares_addrttl/ares_addr6ttl this has been split out into helper functions of ares__addrinfo2hostent() and ares__addrinfo2addrttl() to prevent this duplicative code.
2. ares_getaddrinfo() was apparently never honoring HOSTALIASES, and this was discovered once ares_gethostbyname() was turned into a wrapper, the affected test cases started failing.
3. A slight API modification to save the query hostname into struct ares_addrinfo as the last element of name. Since this is the last element, and all user-level instances of struct ares_addrinfo are allocated internally by c-ares, this is not an ABI-breaking change nor would it impact any API compatibility. This was needed since struct hostent has an h_name element.
4. Test Framework: MockServer tests via TCP would fail if more than 1 request was received at a time which is common when ares_getaddrinfo() queries for both A and AAAA records simultaneously. Infact, this was a long standing issue in which the ares_getaddrinfo() test were bypassing TCP alltogether. This has been corrected, the message is now processed in a loop.
5. Some tests had to be updated for overall correctness as they were invalid but somehow passing prior to this change.
Change By: Brad House (@bradh352)
bradh352 (9 Oct 2021)
- ares_getaddrinfo() missing sanity check to fix #426
- ares_getaddrinfo(): continue to next domain in search if query returns ARES_ENODATA
Some DNS servers may behave badly and return a valid response with no data, in this
case, continue on to the next search domain, but cache the result.
Fixes Bug: #426
Fix By: Brad House (@bradh352)
- Allow '/' as a valid character for a returned name
As of c-ares 1.17.2, a CNAME an in-addr.arpa delegation broke due
to not allowing '/'. This needs to be allowed to not break valid
functionality.
Fixes Bug: #427
Reported By: Adrian (@leftshift)
Fix By: Brad House (@bradh352)
Daniel Stenberg (5 Oct 2021)
- libcares.pc.in: update the URL
bradh352 (8 Sep 2021)
- ares_expand_name should allow underscores (_) as SRV records legitimately use them
c-ares 1.17.2 introduced response validation to prevent a security issue, however
it did not have (_) listed as a valid character for domain name responses which
caused issues when a CNAME referenced a SRV record which contained underscores.
While RFC2181 section 11 does explicitly state not to do validation, that applies
to servers not clients.
Fixes: #424
Fix By: Brad House (@bradh352)
Daniel Stenberg (7 Sep 2021)
- domain: update to use c-ares.org
Closes #423
- mailing list: moved to lists.haxx.se
GitHub (3 Sep 2021)
- [Biswapriyo Nath brought this change]
CMake: Fix build in cygwin (#422)
As cygwin environment has both socket.h and winsock2.h headers check WIN32 not to include the later one here
Fix By: Biswapriyo Nath (@Biswa96)
bradh352 (23 Aug 2021)
- make building more verbose
- add appveyor cmake/mingw static-only build
GitHub (17 Aug 2021)
- [Sinan Kaya brought this change]
CMake: lower case advapi32 for cross-building with mingw (#420)
When cross compiling with yocto's meta-mingw layer, getting a dependency
error.
This is caused by the fact that advapi32 is lower case in mingw builds.
Fix By: Sinan Kaya <sinan.kaya@microsoft.com>
bradh352 (17 Aug 2021)
- autotools: add ax_check_gnu_make.m4
- autotools: add ax_require_defined.m4
- autotools: dont use newer AC_CHECK_INCLUDES_DEFAULT, don't quote AC_ERROR_MSG
- import more files needed by newer ax_code_coverage.m4
- import more files needed by newer ax_code_coverage.m4
- work around autoreconf -fiv first call returning 'error: too many loops'
- restore zz40-xc-ovr.m4
- autotools: processed configure.ac through autoupdate
- autotools. update ax_code_coverage.m4 to latest. don't use deprecated AC_HELP_STRING
- pull out some old autotools cruft
GitHub (17 Aug 2021)
- [Felix Yan brought this change]
Provide ares_nameser.h as a public interface (#417)
NodeJS needs ares_nameser.h as a pubic header.
Fixes: #415
Fix By: Felix Yan (@felixonmars)
- [Felix Yan brought this change]
Fix building when latest ax_code_coverage.m4 is imported (#418)
ax_code_coverage.m4 dropped the @CODE_COVERAGE_RULES@ macro, so we need to switch to the latest recommendation from the m4 file. This requires updates to Makefile.am.
Fix By: Felix Yan (@felixonmars)
bradh352 (12 Aug 2021)
- bump version to match current release
GitHub (12 Aug 2021)
- [dhrumilrana brought this change]
z/OS minor update, add missing semicolon in ares_init.c (#414)
Build fix for z/OS
Fix by: Dhrumil Rana (@dhrumilrana)
- [Daniel Bevenius brought this change]
add build to .gitignore (#410)
This commit adds the build directory to be ignored by git.
The motivation for adding this to .gitignore as opposed to
.git/info/exclude is that the CMake example in INSTALL.md uses build
as the name of the directory to be used by CMake. This will cause
git to report build as an untracked file.
Fix By: Daniel Bevenius (@danbev)
- [Martin Holeš brought this change]
Add support for URI(Uniform Resource Identifier) records. (#411)
Add ares_parse_uri_reply() for parsing URI DNS replies.
Fix By: Martin Holeš (@martin-256)
Daniel Stenberg (10 Aug 2021)
- ares_getaddrinfo.3: available since 1.16.0
- README.md: use https:// links
Version 1.17.2 (24 Jul 2021)
bradh352 (24 Jul 2021)
- fix typo
- prep for 1.17.2 release
GitHub (30 Jun 2021)
- [jeanpierrecartal brought this change]
Replace strdup() with ares_strdup() (#408)
strdup() is used in src/lib/ares_parse_a_reply.c and src/lib/ares_parse_aaaa_reply.c whereas allocated memory is freed using ares_free().
Bug: 407
Fix By: Jean-pierre Cartal (@jeanpierrecartal)
- [Brad House brought this change]
Validate hostnames in DNS responses and discard from malicious servers (#406)
To prevent possible users having XSS issues due to intentionally malformed DNS replies, validate hostnames returned in responses and return EBADRESP if they are not valid.
It is not clear what legitimate issues this may cause at this point.
If DNS configuration didn't include search domains on MacOS (or iOS) it would throw an error instead of ignoring.
Fix By: @halx99
- [catalinh-bd brought this change]
Bugfix/crash in ares sortaddrinfo (#400)
The bug was generated because there was no check for the number
of items in the list and invalid memory was accesed when the list
was empty. There is a check for null after calling malloc but on
some systems it always returns a valid address for size equals 0.
Relates To: #392, 0903dcecabca283d0fa771632892dc7592b7a66d
Fix By: @catalinh-bd
bradh352 (2 Mar 2021)
- Null deref if ares_getaddrinfo() is terminated with ares_destroy()
ares_freeaddrinfo() was not checking for a Null ptr during cleanup of
an aborted query.
Once that was resolved it uncovered another possible issue with
multiple simultaneous underlying queries being outstanding and
possibly prematurely cleaning up the handle.
Reported By: Michael Kourlas
Fix By: Brad House (@bradh352)
GitHub (18 Feb 2021)
- [Brad House brought this change]
CMake: RANDOM_FILE not defined #397
RANDOM_FILE was never defined by cmake, causing RC4 key generation to use the less secure rand() method.
Also, due to clashes with chain-building from other projects (e.g. curl) that may define RANDOM_FILE, this was renamed to CARES_RANDOM_FILE.
This is the proposed change for #396
Fix By: Brad House (@bradh352)
- [Anton Danielsson brought this change]
CMake: fix Make install for iOS/MacOS (#395)
INSTALL TARGETS were missing the BUNDLE DESTINATION
Fix By: Anton Danielsson (@anton-danielsson)
- [František Dvořák brought this change]
Fix build with autotools out of source tree (#394)
Add missing include directory, which fixes the build with autotools in separated build directory.
Fix By: František Dvořák (@valtri)
bradh352 (15 Jan 2021)
- fuzzing: HAVE_CONFIG_H may not be defined so cannot include ares_setup.h. Its not needed even though we include ares_nameser.h
- remove redundant header checks
- properly detect netinet/tcp.h on openbsd
- more portability updates
- renamed nameser.h to ares_nameser.h requires Makefile.inc update for distributed files
- more portability updates
- remove bad files
- portability updates for test cases
- Portability Updates for arpa/nameser.h (#388)
There is too much inconsistency between platforms for arpa/nameser.h and arpa/nameser_compat.h for the way the current files are structured. Still load the respective system files but make our private nameser.h more forgiving.
Fixes: #388
Fix By: Brad House (@bradh352)
- ares_parse_ptr_reply() handle NULL for addr/addr_len. Fixes #392
NodeJS passes NULL for addr and 0 for addrlen parameters to ares_parse_ptr_reply(). On systems where malloc(0) returned NULL, this would cause the function to return ARES_ENOMEM, but the cleanup wasn't handled properly and would crash.
This patche fixes that bug, and also hardens ares_free_hostent() to not leak memory during cleanup.
Fixes: #392
Fix By: Brad House (@bradh352)
- Define behavior of malloc(0)
Some systems may return either NULL or a valid pointer on malloc(0). c-ares should never call malloc(0) so lets return NULL so we're more likely to find an issue if it were to occur.
GitHub (24 Dec 2020)
- [dhrumilrana brought this change]
z/OS: port (#390)
Port c-ares to z/OS.
Fix By: Dhrumil Rana (@dhrumilrana)
- [vburdo brought this change]
Use unbuffered stdio for /dev/urandom to read only requested data (#391)
Buffered fread() reads 4096 bytes which is completely unnecessary and potentially may cause problems.
I discovered this on private linux configuration where custom /dev/urandom implementation has poor performance.
Fix By: @vburdo
- [Jay Freeman (saurik) brought this change]
This relative header #include needs to use quotes. (#386)
Fix By: Jay Freeman (@saurik)
bradh352 (23 Nov 2020)
- Win32: Fix tools build with autotools static library
When c-ares is being built as static on Win32, CARES_STATICLIB must
be defined, but it wasn't being pulled in for the tools.
Fixes: #384
Fix By: Brad House (@bradh352)
- Loosen requirements for static c-ares library when building tests
It appears that when building tests, it would hardcode enabling building
of the c-ares static library. This was probably due to Windows limitations
in symbol visibility.
This change will use the static library if it exists for tests, always.
Otherwise, it will only forcibly enable static libraries for tests on
Windows.
Fixes: #380
Fix By: Brad House (@bradh352)
- Remove legacy comment about ahost/acountry/adig targets
- Distribute fuzzinput/fuzznames for fuzz tests
The fuzz test files were not being distributed. This doesn't appear to be
a regression, it looks like they have never been distributed.
Fixes: #379
Fix By: Brad House (@bradh352)
Version 1.17.1 (19 Nov 2020)
GitHub (19 Nov 2020)
- [Brad House brought this change]
Travis: add iOS target built with CMake (#378)
Issue #377 suggested that CMake builds for iOS with c-ares were broken. This PR adds an automatic Travis build for iOS CMake.
Fix By: Brad House (@bradh352)
bradh352 (18 Nov 2020)
- fix build
GitHub (18 Nov 2020)
- [Fabrice Fontaine brought this change]
External projects were using non-public header ares_dns.h, make public again (#376)
It appears some outside projects were relying on macros in ares_dns.h, even though it doesn't appear that header was ever meant to be public. That said, we don't want to break external integrators so we should distribute this header again.
Fix By: Fabrice Fontaine (@ffontaine)
bradh352 (17 Nov 2020)
- note that so versioning has moved to configure.ac
- note about 1.17.1
- fix sed gone wrong
GitHub (17 Nov 2020)
- [Daniel Stenberg brought this change]
autotools cleanup (#372)
* remove: install-sh mkinstalldirs
They're generated when needed, no need to store in it.
* buildconf: remove custom logic with autoreconf
Fix By: Daniel Stenberg (@bagder)
bradh352 (17 Nov 2020)
- attempt to fix 1.17.0 release distribution issues
Version 1.17.0 (16 Nov 2020)
bradh352 (16 Nov 2020)
- 1.17.0 release prep
- ares_getaddrinfo(): duplicate hints ai_socktype and ai_protocol into output
ai_socktype and ai_protocol were ignored from the hints input. They are now
duplicated into the output as expected. Currently no sanity checks on
proper values are taking place.
Fixes: #317
Fix By: Brad House (@bradh352)
- ares_parse_{a,aaaa}_reply could return larger *naddrttls than passed in
If there are more ttls returned than the maximum provided by the requestor, then
the *naddrttls response would be larger than the actual number of elements in
the addrttls array.
This bug could lead to invalid memory accesses in applications using c-ares.
This behavior appeared to break with PR #257
Fixes: #371
Reported By: Momtchil Momtchev (@mmomtchev)
Fix By: Brad House (@bradh352)
GitHub (5 Nov 2020)
- [Dustin Lundquist brought this change]
docs: ares_set_local_ip4() uses host byte order (#368)
Properly document brain-dead behavior of ares_set_local_ip4() using host byte order instead of expected network byte order.
empty hquery->name could lead to invalid memory access (#367)
If hquery->name is empty (=="\0"), &hquery->name[strlen(hquery->name)-1] would point to "random" place in memory. This is causing some of my address sanitizer tests to fail.
Fix By: Łukasz Marszał (@lmarszal)
bradh352 (28 Sep 2020)
- Fix OSSFuzz reported issue in CAA reply parsing
OSS-Fuzz is reporting a use-of-uninitialized-value:
CAA (Certification Authority Authorization) was introduced in RFC 6844.
This has been obsoleted by RFC 8659. This commit added the possibility
to query CAA resource records with adig and adds a parser for CAA
records, that can be used in conjunction with ares_query(3).
Closes Bug: #292
Fix By: Daniela Sonnenschein (@lxdicted)
Daniel Stenberg (17 Sep 2020)
- docs: remove the html and pdf make targets
They're rarely used in our daily work flow and mostly just add friction,
Closes #362
bradh352 (14 Sep 2020)
- ares_process needs to always include nameser.h as it has compat
- Define T_OPT if system doesn't provide it
GitHub (12 Sep 2020)
- [Gisle Vanem brought this change]
Change the mailman links (#358)
Links when wrapping become misleading. Insert newline to prevent wrapping.
Fix By: Gisle Vanem (@gvanem)
- [Gisle Vanem brought this change]
[adig] Update man-page for the '-x' option (#357)
Fix By: Gisle Vanem (@gvanem)
- [Gisle Vanem brought this change]
[adig] add '-x' option. (#356)
Added a 'dig-style' '-x' option. Also support '-xx' for a
IPv6 bit-string PTR query.
Fix By: Gisle Vanem (@gvanem)
bradh352 (12 Sep 2020)
- fix indentation
- ns_t_opt -> T_OPT
GitHub (12 Sep 2020)
- [Gisle Vanem brought this change]
Fixes for Watt-32 on djgpp + Windows (#355)
No longer any relation to libcurl since '<libcurl-root>/packages/DOS/common.dj' is dropped.
This Makefile.dj has been tested on Win-10 only (using the Windows hosted djgpp cross compiler).
Fix By: Gisle Vanem (@gvanem)
- [Gisle Vanem brought this change]
Fixes for Watt-32 on Windows and MSDOS (#354)
Move the prototype to 'ares_private.h'.
Fix By: Gisle Vanem (@gvanem)
bradh352 (11 Sep 2020)
- update path for include
- remove stale information
- remove stale information
Brad House (9 Sep 2020)
- silence compiler warnings
- Remove stale msvc files from makefile
GitHub (9 Sep 2020)
- [Brad House brought this change]
Reorganize source tree (#349)
Originally started by Daniel Stenberg (@bagder) with #123, this patch reorganizes the c-ares source tree to have a more modern layout. It also fixes out of tree builds for autotools, and automatically builds the tests if tests are enabled. All tests are passing which tests each of the supported build systems (autotools, cmake, nmake, mingw gmake). There may be some edge cases that will have to be caught later on for things I'm not aware of.
Fix By: Brad House (@bradh352)
Brad House (1 Sep 2020)
- remove CURLDEBUG as per #82
GitHub (1 Sep 2020)
- [Erik Lax brought this change]
Detect remote DNS server does not support EDNS as per RFC 6891 (#244)
EDNS retry should be based on FORMERR returned without an OPT RR record as per https://tools.ietf.org/html/rfc6891#section-7 rather than just treating any unexpected error condition as a reason to disable EDNS on the channel.
Fix By: Erik Lax (@eriklax)
Brad House (27 Aug 2020)
- Fix for #345, don't use 'true' use 1
GitHub (27 Aug 2020)
- [Seraphime Kirkovski brought this change]
ares_gethostbyname: Fix AF_UNSPEC support when using an ip address (#204)
fake_hostent() was not supporting AF_UNSPEC, so when an ip address was specified when using AF_UNSPEC it would attempt to do a DNS lookup rather than returning a fake hostent using the ip address.
Fix By: Seraphime Kirkovski (@Seraphime)
- [apenn-msft brought this change]
Tests should use dynamic system-assigned ports rather than static port (#346)
The c-ares test suite was hardcoded to use port 5300 (and possibly 5301, 5302) for the test suite. Especially in containers, there may be no guarantee these ports are available and cause tests to fail when they could otherwise succeed. Instead, request the system to assign a port to use dynamically. This is now the default. To override, the test suite still takes the "-p <port>" option as it always has and will honor that.
Fix By: Anthony Penniston (@apenn-msft)
Brad House (25 Aug 2020)
- Unset members of the addr struct contain garbage values (#343)
When generating the ares_sockaddr data by getaddrinfo() it was only filling
in certain members while leaving others uninitialized. This left garbage
data if a user tried to use the unset values. memset() the ares_sockaddr
to 0 prior to filling in the values to prevent this.
Reported By: @SmorkalovG
Fix By: Brad House (@bradh352)
GitHub (24 Aug 2020)
- [Jonathan Maye-Hobbs brought this change]
FQDN with trailing period should be queried first with larger ndot value (#345)
If a query is performed for dynamodb.us-east-1.amazonaws.com. with ndots=5, it was attempting to search the search domains rather than just attempting the FQDN that was passed it. This patch now at least attempts the FQDN first.
We may need to determine if we should abort any further searching, however as is probably intended.
Fix by: Jonathan Maye-Hobbs (@wheelpharoah)
- [Gisle Vanem brought this change]
Update acountry.c country code list (#341)
Updated country_list[]:
* 2-letter ISO-3166 country-codes.
* Add, rename some names + codes in accordance with latest table at https://en.wikipedia.org/wiki/ISO_3166-1.
Fix By: Gisle Vanem (@gvanem)
- [Bulat Gaifullin brought this change]
Test case should honor flag HAVE_WRITEV rather than WIN32 (#344)
Test cases where not honoring the HAVE_WRITEV flag but instead using WIN32 to determine if WRITEV was available or not. This patch fixes that.
Fix By: Bulat Gaifullin (@bgaifullin)
Brad House (18 Jul 2020)
- Ensure c89 support
A couple of for loops in Mac-specific code were using integer declarations
inside a for loop. Move the declaration to the top of the preceding
code block to retain c89 compliance.
Reported By: Jeffrey Walton
GitHub (2 Jul 2020)
- [Fionn Fitzmaurice brought this change]
Avoid buffer overflow in RC4 loop comparison (#336)
The rc4 function iterates over a buffer of size buffer_len who's maximum
value is INT_MAX with a counter of type short that is not guaranteed to
have maximum size INT_MAX.
In circumstances where short is narrower than int and where buffer_len
is larger than the maximum value of a short, it may be possible to loop
infinitely as counter will overflow and never be greater than or equal
to buffer_len.
The solution is to make the comparison be between types of equal width.
This commit defines counter as an int.
Fix By: Fionn Fitzmaurice (@fionn)
- [anonymoushelpishere brought this change]
Updated help information for adig, acountry, and ahost. (#334)
Provide more descriptive help information for various utilities.
Fix By: @anonymoushelpishere
- [lutianxiong brought this change]
avoid read-heap-buffer-overflow (#332)
Fix invalid read in ares_parse_soa_reply.c found during fuzzing
Fixes Bug: #333
Fix By: lutianxiong (@ltx2018)
- [Ivan Baidakou brought this change]
Fix: sizeof(sizeof(addr.saX)) -> sizeof(addr.saX) in readaddrinfo (#331)
Looks like a sed-gone-wrong, a sizeof inside of a sizeof.
Fix By: Ivan Baidakou (@basiliscos)
Version 1.16.1 (11 May 2020)
Brad House (11 May 2020)
- c-ares 1.16.1 release prep
- update travis to use xcode11.4
- Prevent possible double-free in ares_getaddrinfo() if ares_destroy() is called
In the event that ares_destroy() is called prior to ares_getaddrinfo() completing,
it would result in an invalid read and double-free due to calling end_hquery() twice.
Reported By: Jann Horn @ Google Project Zero
GitHub (30 Apr 2020)
- [shelley vohr brought this change]
fix: windows UNICODE incompatibilities with ares_getaddrinfo (#328)
Fixes the following compatibility issues:
* Use RegQueryValueExA instead of RegQueryValueEx
* Use ExpandEnvironmentStringsA instead of ExpandEnvironmentStrings
* Use RegOpenKeyExA instead of RegOpenKeyExA
* Use GetWindowsDirectoryA instead of GetWindowsDirectoryA
Fix By: Shelley Vohr (@codebytere)
Closes: #327
Brad House (13 Apr 2020)
- travis: CloudFlare does not allow T_ANY requests, so live tests that use it fail. Disable.
- travis: bump macos image to the latest
- cast-align warnings are false for struct sockaddr, silence
Create a macro to silence false cast-align warnings when casting
struct sockaddr * to struct sockaddr_in * and struct sockaddr_in6 *.
Fix By: Brad House (@bradh352)
- MacOS: Enable libresolv support for retrieving DNS servers like iOS does.
GitHub (10 Apr 2020)
- [Dmitry Igrishin brought this change]
CMake: Populate the INCLUDE_DIRECTORIES property of installed targets (#323)
Populate the INCLUDE_DIRECTORIES property of installed targets
Fix By: Dmitry Igrishin (@dmitigr)
Brad House (10 Apr 2020)
- travis: make valgrind use cmake for tests
- dont try to use libtool to run valgrind
- valgrind requires libtool installed to wrap tests
- scan build 7
- fix travis live test
- add debug for travis
- try without sudo
- attempt to modernize travis build environment
GitHub (6 Apr 2020)
- [Teemu R brought this change]
Allow TXT records on CHAOS qclass (#321)
Some DNS servers intentionally "misuse" the obsoleted CHAOS (CH) qclass to provide things like `version.bind`, `version.server`, `authors.bind`, `hostname.bind` and `id.server`.
C-ares was not allowing such use cases.
Fix By: Teemu R. (@rytilahti)
Brad House (5 Apr 2020)
- Remove warnings from ares_getaddrinfo.3 man page
As reported in #319, non-standard macros of .IN were used.
Replace with .RS/.RE.
Fixes: #319
Fix By: Brad House (@bradh352)
- ares_getaddrinfo man page render better for man2html
- update man pages to render better for man2html
Version 1.16.0 (12 Mar 2020)
Brad House (12 Mar 2020)
- 1.16.0 release notes draft
- attempt to fix double-free introduced in e0517f9
GitHub (12 Mar 2020)
- [David Drysdale brought this change]
test: fuzzer input triggering double free (#315)
OSS-Fuzz has reported a double-free with the fuzzer input file
Bisecting the failure points to commit e0517f97d988 ("Parse SOA records
from ns_t_any response (#103)")
- [Brad House brought this change]
CMake: Install Manpages (#314)
CMake wasn't installing manpages.
Fixes #297
Fix By: Brad House (@bradh352)
- [Brad House brought this change]
Enable cmake tests for AppVeyor (#313)
Tests require linking against the static library on Windows otherwise the symbols are not exported for internals being tested.
Fix By: Brad House (@bradh352)
Brad House (11 Mar 2020)
- Add AppVeyor badge
- bump c-ares version to 1.16.0. test AppVeyor integration.
GitHub (11 Mar 2020)
- [Brad House brought this change]
replace all usages of inet_addr() with ares_inet_pton() which is more proper (#312)
Replace usage of inet_addr() with ares_inet_pton() which is more appropriate and fixes issues with legitimate addresses like 255.255.255.0. IPv6 already used this.
Fixes #309
Fix By: Brad House (@bradh352)
- [Brad House brought this change]
CMake: Generate WinPDB files during build (#311)
Build and Install PDB (Windows Debug Symbol) files if supported by underlying system.
Also update AppVeyor to test cmake builds.
Fixes #245
Fix By: Piotr Pietraszkiewicz (@ppietrasa) and Brad House (@bradh352)
- [Brad House brought this change]
CMake: Rework library function checking (#310)
CHECK_LIBRARY_EXISTS(), while it takes a function name, does not actually verify the function exists in the library being evaluated. Instead, if the function is found in any dependent library, and the referenced library also exists, it returns true. This is not desirable.
Wrap with a Macro to change the behavior.
Fixes: #307
Fix By: Brad House (@bradh352)
- [Dron Rathore brought this change]
Parse SOA records from ns_t_any response (#103)
Added the capability of parsing SOA record from a response buffer of ns_t_any type query, this implementation doesn't interfere with existing T_SOA query's response as that too is treated as a list of records. The function returns ARES_EBADRESP if no SOA record is found(as per RFC).
The basic idea of sticking to RFC that a ns_t_any too should return an SOA record is something open for discussion but I have kept the functionality intact as it was previously i.e the function returns ARES_EBADRESP if it doesn't find a SOA record regardless of which response it is parsing i.e. T_SOA or T_ANY.
Note that asking for T_ANY is generally a bad idea:
Added CPack functionality for generating RPM or DEB packages (#283)
Added CPack functionality for generating RPM or DEB packages
ie: run `cpack -G RPM` (or "DEB") after building with CMake.
The current configuration creates 3 separate packages for the shared library,
the development files and the tools.
Fix By: Stephen Bryant (@bf-bryants)
- [tjwalton brought this change]
ares_gethostbyname: Return ENODATA if no valid A or AAAA record found (#304)
ares_gethostbyname() was returning ESUCCESS when no A or AAAA record was found but a CNAME pointing nowhere was present. ENODATA should be returned instead, however the hosts pointer will still be present to provide the alias list.
* Return ENODATA if no valid A or AAAA record found
* Fix and update test ParseAReplyNoData.
* Add test for new ENODATA behaviour in ares_gethostbyname.
Fixes Bug #303
Fix By: @tjwalton
- [Michal Rostecki brought this change]
test: Separate live tests from SetServers* tests (#299)
Before this change, SetServers, SetServersPorts and SetServersCSV
contained test cases trying to make DNS queries with the google.com
hostname, which requires Internet connectivity. Tests with that
requirement should be defined in the ares-test-live.cc file and contain
"Live" prefix to filter them out with `--gtest_filter=-*.Live*` on
machines without Internet connectivity.
Fix By: Michal Rostecki (@mrostecki)
- [Adam Majer brought this change]
Only count valid addresses when response parsing (#302)
When ares_parse_a_reply or ares_parse_aaaa_reply is called in case
where another AAAA and A responses exist, the resulting ares_addrttl
count is invalid and the structure points to gibberish.
Move variables into the block where it is used to avoid unused-vars (#281)
Warning uncovered with [-Werror, -Wunused-variables]
Fix By: Vy Nguyen (@oontvoo)
- [Vy Nguyen brought this change]
Rename local macros to avoid conflicting with system ones and remove unsed variables. (Otherwise code will break once compiled with [-Werror,-Wmacro-redefined,-Wunused-variable] ) (#280)
Fix new getaddrinfo code to not redefine macros on some systems.
Fix By: Vy Nguyen (@oontvoo)
- [Egor Pugin brought this change]
[ares_getenv] Return NULL in all cases. (#279)
if ares_getenv is defined, it must return a value on all platforms.
7e6af8e inserted the documentation of resolvconf_path in the middle of
the item for ednspsz, leading to broken layout. Fix that.
Fix By: Peter Eisentraut (@petere)
- [Gregor Jasny brought this change]
manpages: Fix typos detected by lintian (#269)
Fix By: Gregor Jasny (@gjasny)
- [lifenjoiner brought this change]
keep command line usage up to date (#256)
adig and ahost built-in help did not match args taken.
Fix-By: @lifenjoiner
- [Dan Noé brought this change]
ares-test.cc: Handle nullptr in AddrInfo ostream. (#268)
The const AddrInfo& argument to operator<< overload for AddrInfo can be
a nullptr unique_ptr. Handle this explicitly by printing {nullptr} if
the rest of the function cannot be safely executed.
Fix-by: Dan Noé <dpn@google.com>
- [Dan Noé brought this change]
Add missing limits.h include from ares_getaddrinfo.c (#267)
This files references INT_MAX, but does not include limits.h. This can
cause a build failure on some platforms. Include limits.h if we have it.
Fix-by: Dan Noé <dpn@google.com>
- [Andrew Selivanov brought this change]
fix fuzzer docs and add missing getaddrinfo docs (#265)
There is a fix for a bit outdated clang fuzzer docs and ares_getaddrinfo docs.
Fix By: Andrew Selivanov (@ki11roy)
- [Andrew Selivanov brought this change]
Fix leak and crash in ares_parse_a/aaaa_reply (#264)
* fix leak if naddress of particular type found
* fix segfault when wanted ttls count lesser than count of result records
* add fuzzer input files that trigger problems (from #263)
Reported-By: David Drysdale (@daviddrysdale)
Fix-By: Andrew Selivanov (@ki11roy)
- [Andrew Selivanov brought this change]
fix segfault when parsing wrong type of record (#262)
Fixes segfault when trying to ares_parse_aaaa with AF_INET and vise versa.
Fix By: Andrew Selivanov (@ki11roy)
- work around mingw compile failure
- c++ requires explicit casts
- support EnvValue on Windows by implementing setenv/unsetenv
- [Andrew Selivanov brought this change]
getaddrinfo enhancements (#257)
* Service support has been added to getaddrinfo.
* ares_parse_a/aaaa_record now share code with the addrinfo parser.
* Private ares_addrinfo structure with useful extensions such as ttls (including cname ttls),
as well as the ability to list multiple cnames in chain of lookups
Work By: Andrew Selivanov @ki11roy
- [Andrew Selivanov brought this change]
fix ares__sortaddrinfo, use wrappers for sock_funcs (#258)
Some socket functions weren't exposed for use by other areas of the library. Expose
those and make use of them in ares__sortaddrinfo().
Fix By: Andrew Selivanov (@ki11roy)
- Fix c89 compilation support broken by .onion rejection changes
Move .onion check lower after all variables have been declared.
Bug: #246
- [kedixa brought this change]
getaddrinfo: callback must be called on bad domain (#249)
Due to an order of incrementing the remaining queries and calling ares_query, on a bad domain
the registered callback wouldn't be called.
Bug: #248
Fixed-By: @kedixa
- [Darrin W. Cullop brought this change]
Windows ARM/ARM64 requires AdvApi32 (#252)
Fix link issues caused by missing library that appears to only be required on ARM (though
docs don't list this restriction). Doesn't hurt to require it everywhere.
Bug: #251
Fixed-By: Darrin Cullop (@dwcullop)
- [kedixa brought this change]
getaddrinfo: avoid infinite loop in case of NXDOMAIN(#240) (#242)
There are two possible causes for infinite loops fo NXDOMAIN, based on how many dots are in the domain name (one for < ARES_OPT_NDOTS and one for >= ARES_OPT_NDOTS), where it will repeat the same query over and over as the hquery->next_domain doesn't increment.
Fix By: @kedixa
- Portability fix for ares__sortaddrinfo()
replace uint32_t with unsigned int and socklen_t with ares_socklen_t
By: Brad House
- [Khaidi Chu brought this change]
fix: init bufp before reject .onion to make it can be free correctly (#241)
When querying a .onion domain, it returns directly without setting bufp to NULL. A subsequent free() that occurs can cause a segmentation fault.
Fix By: Khaidi Chu (@XadillaX)
- [Andrew Selivanov brought this change]
Add ares__sortaddrinfo() to support getaddrinfo() sorted results (#239)
This is a port of RFC 6724 compliant sorting function from Android Bionic project:
Bugfix for `ares_getaddrinfo` and additional unit tests (#234)
This PullRequest fixes a bug in the function add_to_addrinfo which task is to add new addrinfo items to the ai_next linked list. Also additional unit tests for testing ares_getaddrinfo will be added:
Additional mock server test classes (ares-test-mock-ai.cc):
MockTCPChannelTestAI
MockExtraOptsTestAI
MockNoCheckRespChannelTestAI
MockEDNSChannelTestAI
RotateMultiMockTestAI
NoRotateMultiMockTestAI
Additional live tests (ares-test-live-ai.cc):
LiveGetHostByNameV4
LiveGetHostByNameV6
LiveGetHostByNameV4AndV6
Fix By: Christian Ammer (@ChristianAmmer)
- [Christian Ammer brought this change]
Remaining queries counter fix, additional unit tests for `ares_getaddrinfo` (#233)
Add initial implementation for ares_getaddrinfo (#112)
Initial implementation for ares_getaddrinfo(). It is NOT compliant with RFC6724, though
it is expected to come closer to conformance prior to the next release.
Features not supported include sorted addresses and honoring of service and hints
parameters.
Implementation by: Christian Ammer (@ChristianAmmer)
- [Ben Noordhuis brought this change]
test: fix bad expectation in ipv6 localhost test (#227)
The LiveGetLocalhostByAddrV6 test expected to see "localhost" in the
result when doing an address-to-name lookup for ::1 but on my system
that resolves to "ip6-loopback" because of this stanza in /etc/hosts:
$ grep ^::1 /etc/hosts
::1 ip6-localhost ip6-loopback
Fix By: Ben Noordhuis (@bnoordhuis)
Bug: #85
- [Ben Noordhuis brought this change]
ares_version.h: bump version (#230)
Version change not committed from maketgz.sh
Bug: #229
Daniel Stenberg (24 Oct 2018)
- ares_library_init_android.3: minor syntax edits, fixed AVAILABILITY
Version 1.15.0 (23 Oct 2018)
Brad House (23 Oct 2018)
- last minute 1.15.0 addition
- [Ben Noordhuis brought this change]
Report ARES_ENOTFOUND for .onion domain names as per RFC7686. (#228)
Quoting RFC 7686:
Name Resolution APIs and Libraries (...) MUST either respond
to requests for .onion names by resolving them according to
[tor-rendezvous] or by responding with NXDOMAIN.
A legacy client may inadvertently attempt to resolve a .onion
name through the DNS. This causes a disclosure that the client
is attempting to use Tor to reach a specific service. Malicious
resolvers could be engineered to capture and record such leaks,
which might have very adverse consequences for the well-being
of the user.
Bug: #196
Fix By: Ben Noordhuis @bnoordhuis
- prepare for c-ares 1.15.0 release
- AIX Build Fix
AIX attempts to include both nameser_compat.h and onameser_compat.h. It appears
the proper fix is to define _USE_IRS so that only nameser_compat.h is used.
Bug: #224
Fix By: Brad House (@bradh352)
- Fix crash in ares_dup() due to new ARES_OPT_RESOLVCONF
ares_dup() calls ares_init_options() by making its own fake option
mask since the original mask isn't stored but ARES_OPT_RESOLVCONF
was always set, instead of conditionally set. This caused a crash
because ares_strdup() isn't NULL-safe if no custom path was set.
Made ares_dup() set ARES_OPT_RESOLVCONF conditionally.
Fix By: Brad House (@bradh352)
- [Sarat Addepalli brought this change]
Add ares_init_options() configurability for path to resolv.conf file
Add resolvconf_path to end of struct ares_options with ARES_OPT_RESOLVCONF option
so on Unix-like systems a custom path can be specified. If no path is specified,
/etc/resolv.conf is used like normal.
Fix By: Sarat Addepalli @SirR4T
Fixes Bug: #220
Review By: Brad House @bradh352
- remove stale variables
- fix prototype name for ares_strsplit_free()
- add missing prototype
- simplify ares_strsplit() and create ares_strsplit_free() helper function
- missing ares_strsplit.h from HHEADERS for inclusion in distribution
- [Ruslan Baratov brought this change]
Add CARES_BUILD_TOOLS CMake option (#214)
Add ability to exclude building of tools (adig, ahost, acountry) in CMake. This should also close #200.
Fix By: Ruslan Baratov (@ruslo)
Bug: #200
- [flyingdutchman23 brought this change]
Style. Whitespace cleanup. (#213)
Small whitespace cleanups.
Fix By: @flyingdutchman23
- [John Schember brought this change]
Android: Support for domain search suffix (#211)
Fixes issue #207. Uses LinkProperties.getDomains() to get a list of search domains and adds them to the suffix list. This also adds a new helper function to split strings into an array based on multiple delimiters replacing multiple other functions for dealing with string splitting.
Submitter: John Schember (@user-none)
Fixes: #207
Approved-by: Brad House (@bradh352)
- [afalin brought this change]
Improve DNS suffixes extracting from WinNT registry (#202)
Join all global and connection specific suffix lists. Use 'HKLM\Software\Policies\Microsoft\Windows NT\DNSClient\SearchList', 'HKLM\System\CurrentControlSet\Services\Tcpip\Parameters\Domain' as global suffix lists.
Fix By: @afalin
- Be consistent with indention in CMakeLists.txt
The imported TRANSFORM_MAKEFILE_INC function from curl used space indention
but the rest of the file used tabs. Go ahead and make it tabs for
consistency as well.
Committed By: Brad House
- [flyingdutchman23 brought this change]
Fix modern gcc warning: argument to 'sizeof' in 'strncpy' call is the same expression as the source
Silence warning about using src to determine number of bytes to copy.
In this case it doesn't matter whether it is `src` or `dest`. So there
is no functionality change.
Bug: #210
Fix By: @flyingdutchman23
- [Andi Schnebinger brought this change]
fix stringop-overflow warning of GCC (#201)
When using a modern GCC to compile c-ares, there is a stringop-overflow warning.
This patch simply silences the false-positive warning, there is no actual code flaw.
Bug: https://github.com/c-ares/c-ares/pull/201
Fixed By: Andi Schnebinger @Iniesta8
GitHub (18 May 2018)
- [David Drysdale brought this change]
travis: do coverage in "coverage" build (#195)
Fixes #194, a mistake from commit a255081f2c3c ("travis: Only do
coverage/distcheck on normal build")
Brad House (17 May 2018)
- [Brad Spencer brought this change]
Apply the IPv6 server blacklist to all nameserver sources, not just Windows (#193)
For #164, I mentioned that it seemed like the IPv6 nameserver blacklist should apply to all OSes. In a mailing list post, @bradh352 agreed and suggested that I file a PR to make it so.
This moves the blacklist check from being Windows-specific to being a general feature of config_nameservers(), no matter the nameserver source. It also simplifies the ares_ipv6_server_blacklisted() implementation to not parse and re-parse the blacklisted IPv6 addresses from strings on every check. I think they're almost as easy to read as a sequence of hex bytes in an array initializer, and it's definitely less work on each trip through the code.
Fix By: Brad Spencer @b-spencer
PR: https://github.com/c-ares/c-ares/pull/193
- [Brad Spencer brought this change]
Fix warnings emitted by MSVC when using -W4 (#192)
These changes fix a few warnings emitted by recent versions of MSVC when compiling with -W4. Half of the changes are in Windows-specific code, and the other half should be safe no matter the compiler or OS.
The allocation function change is probably the only one that needs explanation. MSVC gives warnings about the function pointers not being stable across DLL boundaries or something to that effect, so for Windows, I've made them be called indirectly, which at least made the compiler happy. I can't say I've tested every linking combination on Windows with them before or after the change, but it seems harmless.
Fix By: Brad Spencer @b-spencer
PR: https://github.com/c-ares/c-ares/pull/192
- [David Hotham brought this change]
Prevent changing name servers while queries are outstanding (#191)
Changing name servers doesn't work, per #41. Better to return an error code than to crash.
Fix-by: David Hotham @dimbleby
David Drysdale (15 May 2018)
- [Tobias Nießen brought this change]
Fix comment in ares_rules.h (#189)
Brad House (6 May 2018)
- [Brad Spencer brought this change]
Harden and rationalize c-ares timeout computation (#187)
* Harden and rationalize c-ares timeout computation
* Remove the rand() part of the timeout calculation completely.
When c-ares sends a DNS query, it computes the timeout for that request as follows:
I see two issues with this code. Firstly, when either try_count or channel->timeout are large enough, this can end up as an illegal shift.
Secondly, the algorithm for adding the random timeout (added in 2009) is surprising. The original commit that introduced this algorithm says it was done to avoid a "packet storm". But, the algorithm appears to only reduce the timeout by an amount proportional to the scaled timeout's magnitude. It isn't clear to me that, for example, cutting a 30 second timeout almost in half to roughly 17 seconds is appropriate. Even with the default timeout of 5000 ms, this algorithm computes values between 2812 ms and 5000 ms, which is enough to cause a slightly latent DNS response to get spuriously dropped.
If preventing the timers from all expiring at the same time really is desirable, then it seems better to extend the timeout by a small factor so that the application gets at least the timeout it asked for, and maybe a little more. In my experience, this is common practice for timeouts: applications expect that a timeout will happen at or after the designated time (but not before), allowing for delay in detecting and reporting the timeout. Furthermore, it seems like the timeout shouldn't be extended by very much (we don't want a 30 second timeout changing into a 45 second timeout, either).
Consider also the documentation of channel->timeout in ares_init_options():
The number of milliseconds each name server is given to respond to a query on the first try. (After the first try, the timeout algorithm becomes more complicated, but scales linearly with the value of timeout.) The default is five seconds.
In the current implementation, even the first try does not use the value that the user supplies; it will use anywhere between 56% and 100% of that value.
The attached patch attempts to address all of these concerns without trying to make the algorithm much more sophisticated. After performing a safe shift, this patch simply adds a small random timeout to the computed value of between 0 ms and 511 ms. I could see limiting the random amount to be no greater than a proportion of the configured magnitude, but I can't see scaling the random with the overall computed timeout. As far as I understand, the goal is just to schedule retries "not at the same exact time", so a small difference seems sufficient.
UPDATE: randomization removed.
Closes PR #187
Fix by: Brad Spencer
- distribute ares_android.h
Distribute ares_android.h when a release distribution package is
due to not being listed in Makefile.inc. Add missing docs and
ensure docs are alphabetized.
Version 1.14.0 (16 Feb 2018)
Daniel Stenberg (16 Feb 2018)
- ares_android.c: fix warning: ISO C forbids an empty translation unit
- RELEASE-NOTES: some more work we did and people who helped
Brad House (16 Feb 2018)
- travis: skip Autotools style testing for cmake
Fix cmake test build by skipping autotools portion of test script.
- travis: standardize CMake test off of Autotools tests
Instead of running 'make test', run the tests directly like autotools
does. It provides more verbose output.
- travis: Enable building tests for CMake
Travis should auto-build and run tests for cmake builds now that
PR #168 is merged.
- fix version in pkgconfig
- Add version update to CMakeLists in maketgz
- Release prep. Add support for pkgconfig in cmake, set versions appropriately
Gregor Jasny (15 Feb 2018)
- CMake: Add tests
Brad House (14 Feb 2018)
- [Gregor Jasny brought this change]
Use cmake3 package provided by Ubuntu (#182)
- Cmake 3.1 instead of 3.2.1 should be the minimum
- Update RELEASE-NOTES and RELEASE-PROCEDURE.md to prepare for next release
- get rid of c++ style comments
- Use trusty for all builds, precise is EOL. Update clang and cmake versions.
- Current CMakeLists.txt doesn't support 2.8.12 anymore, we need to bump the version to 3.2.1 minimum
- Re-organize sections in INSTALL.md and add CMake section
- [Sergey Kolomenkin brought this change]
remove compilation warnings in MSVC (#47)
- document handling of timeouts for ares_process and ares_process_fd to close PR #57
- As per Issue #155, since we do not require gethostname() during init, if it fails, there's no reason for init to fail as it is only used to populate the domain
GitHub (7 Feb 2018)
- [David Drysdale brought this change]
Document WSAStartup requirement (#180)
David Drysdale (6 Feb 2018)
- [Antonio Tajuelo brought this change]
Added coderelease.io badge to readme.md for letting people subscribe to new versions (#174)
- [Sheel Bedi brought this change]
Update year in LICENSE.md to 2018 (#170)
GitHub (4 Feb 2018)
- [David Drysdale brought this change]
travis: use VM not container for {L,A}SAN builds (#177)
As per https://github.com/travis-ci/travis-ci/issues/9033, container
based builds do not currently allow ptrace, which is used by LSAN and
ASAN.
Brad House (3 Feb 2018)
- [acthompson-google-com brought this change]
Android JNI code leaks local references in some cases (#175)
* Add Google LLC to AUTHORS.
* android: Explicitly delete all JNI local references, and cache JNI method IDs at initialization.
* android: Only return ARES_ENOTINITIALIZED on failures in initialization code.
Gregor Jasny (2 Jan 2018)
- Embed fused Google Test 1.8.0
Brad House (21 Dec 2017)
- [John Schember brought this change]
android: Check returns for obj and classes are not NULL. Document API levels for various Android functions and objects used. (#166)
- CARES_CHECK_TYPE should reference variable so a warning is not produced for -Werror compatibility
- [Brad Spencer brought this change]
Fix computation of IPv6 blacklist mask for values of netmask > 8. (#164)
David Drysdale (14 Dec 2017)
- travis: Only do coverage/distcheck on normal build
- travis: only do pip install on Linux
- travis: only test in IPv4 mode
Travis' Trusty environment does not support IPv6.
- test: allow restriction to one IP address family
- [Roman Teterin brought this change]
Fix a typo in init_by_resolv_conf (#160)
Brad House (11 Dec 2017)
- @gvanem says MSVC -RTCc option fails, looks erroneous to me, but the additional mask is harmless
- Fix some other mingw warnings
- Issue #143, get rid of windows build warning due to passing 'char **' to argument expecting 'const char **'
- [Gregor Jasny brought this change]
Distribute CMake files (#130)
- Android variants may not have __system_property_get
Some android systems like ARM64 may not have the __system_property_get
symbol in libc (but still have it in the public headers). Detect this
condition at build time. The __system_property_get method of retrieving
name servers is deprecated as of Oreo so should strictly be a fallback
mechanism anyhow.
David Drysdale (9 Nov 2017)
- [David Hotham brought this change]
Wrong function name throughout man page (#154)
- ares_data.c: iterate through substructs when freeing
Previous code recursed into substructures, which makes it more likely
that large/heavily-nested responses could use up lots of stack.
- test: test ares_free_data on long chain of structs
- [Felix Yan brought this change]
Fix a typo in inet_ntop.c (#151)
Daniel Stenberg (29 Sep 2017)
- ares_gethostbyname.3: fix callback status values
- ARES_ENOTFOUND means the _name_ wasn't found
- ARES_ENODATA can be returned when a resolve fails
Fix DNS server lookup breaking with Android O due to Android removing access to net.dns# system properties. (#148)
As of Android 8 (Oreo) access to net.dns# has been removed (https://developer.android.com/about/versions/oreo/android-8.0-changes.html). The reasoning given is that it, "improves privacy on the platform". Currently c-ares uses this to get the list of DNS servers.
Now the only way to access the DNS server list is by using the Connectivity Manager though Java. This adds the necessary JNI code to use the Connectivity Manager and pull the DNS server list. The old way using __system_property_get with net.dns# remains for compatibilty.
Using the Connectivity Manager requires the ACCESS_NETWORK_STATE permission to be set on the app. Existing applications most likely are not setting this and keeping the previous method as a fallback will at the very least ensure those apps don't break on older versions of Android. They will need to add this permission for Android 8 compatibility.
Included in the patch are two initalization functions which are required. The JVM must be registered as well as the Connectivity Manager itself. There is no way to get the Connectivity Manager except though Java. Either being passed down to C directly or by passing in an Android Context which can be used to get the Connectivity Manager. Examples are provided in the documentation.
- [Konstantinos Sofokleous brought this change]
allow linking against the static msvc runtime library (#133)
allow linking against the static msvc runtime library
- [Gergely Nagy brought this change]
Force using the ANSI versions of WinAPI functions (#142)
When compiling c-ares with a build system that defines UNICODE,
bad versions of WinAPI functions are used causing failures or even
crashes. When windows.h is included in MBCS mode (like in the default
build system), the ..A versions are the same as using the one without
any suffix.
- [cmake] build fix on Solaris
GitHub (11 Sep 2017)
- [Brad House brought this change]
Win32 exclude legacy ipv6 subnets (#144)
win32 ipv6: add infrastructure to exclude ipv6 subnets that are known to cause issues
- [David Drysdale brought this change]
windows: only look for ancient compilers (#146)
Also drop the use of a versioned output directory; just use
.\msvc
- [David Drysdale brought this change]
ares_init_options.3: match up sock_state_cb args (#141)
Fixes #140
Daniel Stenberg (25 Aug 2017)
- [Anna Henningsen brought this change]
gethostbyaddr: fail with `ECANCELLED` for `ares_cancel()`
When `ares_cancel()` was invoked, `ares_gethostbyaddr()`
queries would fail with `ENOTFOUND` instead of `ECANCELLED`.
It seems appropriate to treat `ares_cancel()` like `ares_destroy()`,
but I would appreciate review of the correctness of this change.
Ref: https://github.com/nodejs/node/issues/14814
Closes #138
David Drysdale (18 Aug 2017)
- [David Hotham brought this change]
support most recent Visual Studio 2017
Brad House (26 Jul 2017)
- Preserve original DNS server order on Windows for equal metrics.
qsort is not stable, in order to make it stable we need to record
the original index and add it as a secondary sort value when the
metrics are equal to prevent using DNS servers that may not work
at all as reported by some users.
David Drysdale (15 Jul 2017)
- [Anna Henningsen brought this change]
ares_parse_naptr_reply: make buffer length check more accurate
9478908a490a6bf009ba58d81de8c1d06d50a117 introduced a length check
for records parsed by `ares_parse_naptr_reply()`. However, that
function is designed to parse replies which also contain non-NAPTR
records; for A records, the `rr_len > 7` check will fail as there
are only 4 bytes of payload.
In particular, parsing ANY replies for NAPTR records was broken
by that patch.
Fix that by moving the check into the case in which it is already
fix statement like #define - ares ssize_t define had a trailing semicolon (#120)
David Drysdale (21 Jun 2017)
- test: distribute the fuzzcheck.sh script
The TESTS target runs fuzzcheck.sh so make sure it is included
in the distributed tarball.
(The test itself will be pointless when run on a distribution, because
the fuzzing corpus directories are not shipped, but at least this
means that `make -C test test` should work.)
- test: run the name-parsing corpus check too
Daniel Stenberg (21 Jun 2017)
- dist: don't build/ship PDF versions in release archives
... experience says very few read them and they can still get build by
those who want them.a
- ares_version.h: bump version
Version 1.13.0 (20 Jun 2017)
Daniel Stenberg (20 Jun 2017)
- RELEASE-NOTES: 1.13.0
- ares_set_socket_functions.3: added in 1.13.0
David Drysdale (18 Jun 2017)
- ares_parse_naptr_reply: check sufficient data
Check that there is enough data for the required elements
of an NAPTR record (2 int16, 3 bytes for string lengths)
before processing a record.
- test: Feed in short NAPTR
- test: Add fuzz input with short NAPTR
- test: add ares_parse_naptr_reply to fuzzer
- [noiz brought this change]
Update ares.h to support compiling with QNX
- [Dionna Glaze brought this change]
Simple changes to appease stricter compilers.
ares_process.c uses htonl, which needs <arpa/inet.h> included.
ares_getnameinfo.c uses a dynamically selected format string for
sprintf, which -Wformat-literal doesn't like. Usually one would use
inttypes.h and a format string "%" PRIu32, but C99 is too new for some
supported platforms.
GitHub (16 Jun 2017)
- [Gregor Jasny brought this change]
CMake: Emulate interface library on import (#108)
Closes: #104
Signed-off-by: Gregor Jasny <gjasny@googlemail.com>
Brad House (6 Jun 2017)
- [ChristianAmmer brought this change]
Added support for Windows DNS Suffix Search List (#93)
This change solves issue #53.
Support for suffix search lists was already built in for Linux. The search list could be set via set_search. With this change the suffix search list from Windows is read from the registry and then set into the ares configuration via set_search. There are two sources for the search list:
The global DNS suffix search list.
The primary and connection specific DNS suffixes if the global is not available.
Contributed by @ChristianAmmer
Daniel Stenberg (25 May 2017)
- [Thomas Köckerbauer brought this change]
configure: do not heck for ar if specified manually
Closes #62
David Drysdale (23 May 2017)
- ares_expand_name: limit number of indirections
- test: fuzz input file that takes a while to process
- test: copy data in fuzz regression driver
Oops.
GitHub (23 May 2017)
- [David Drysdale brought this change]
Convert char from ISO-8859-1 to UTF-8 (#99)
Fixes #97
- [Gregor Jasny brought this change]
travis: Use trusty for cmake builds (#109)
kubuntu-backports dropped the CMake package for Precise
David Drysdale (2 May 2017)
- [David Hotham brought this change]
msvc_ver.inc support most recent Visual Studio 2017 (#101)
- test: use io.h not unistd.h for Windows
- test: try building fuzz binaries on Windows
- test: stick to int in ares-fuzz.c
Using int rather than ares_ssize_t means this file
needs no c-ares dependency - it's a general driver for
any libFuzzer-style entrypoint.
- test: force ARES_OPT_NOROTATE for no-rotate tests
* Dynamically find GetBestRoute2 since it is a Windows Vista+ symbol, and will fall back to prior behavior when not available.
* Prefer get_DNS_AdaptersAddresses as the modifications should alleviate the concerns which caused us to prefer get_DNS_NetworkParams
* Update AppVeyor to use MinGW-w64 instead of the legacy MinGW
* Fix compile error in test suite for Windows.
Original message from patch below:
From: Brad Spencer <bspencer@blackberry.com>
Date: Fri, 29 Apr 2016 14:26:23 -0300
On Windows, the c-ares DNS resolver tries first to get a full list of
DNS server addresses by enumerating the system's IPv4/v6 interfaces and
then getting the per-interface DNS server lists from those interfaces
and joining them together. The OS, at least in the way the c-ares
prefers to query them (which also may be the only or best way in some
environments), does not provide a unified list of DNS servers ordered
according to "current network conditions". Currently, c-ares will then
try to use them in whatever order the nested enumeration produces, which
may result in DNS requests being sent to servers on one interface
(hosting the current default route, for example) that are only intended
to be used via another interface (intended to be used when the first
interface is not available, for example). This, in turn, can lead to
spurious failures and timeouts simply because of the server address
order that resulted because of the enumeration process.
This patch makes the (safe?) assumption that there is no other better
rule to chose which interface's DNS server list should be prioritized.
After all, a DNS lookup isn't something "per network"; applications
don't look up "these DNS names on this interface and those DNS names on
that interface". There is a single resource pool of DNS servers and the
application should presume that any server will give it the "right"
answer. However, even if all DNS servers are assumed to give equally
useful responses, it is reasonable to expect that some DNS servers will
not accept requests on all interfaces. This patch avoids the problem by
sorting the DNS server addresses using the Windows IPv4/v6 routing tables.
For example, a request to DNS server C on interface 2 that is actually
sent over interface 1 (which may happen to have the default route) may
be rejected by or not delivered to DNS server C. So, better to use DNS
servers A and B associated with interface 1, at least as a first try.
By using the metric of the route to the DNS server itself as a proxy for
priority of the DNS server in the list, this patch is able to adapt
dynamically to changes in the interface list, the DNS server lists per
interface, which interfaces are active, the routing table, and so on,
while always picking a good "best" DNS server first.
In cases where any DNS server on any interface will do, this patch still
seems useful because it will prioritize a lower-metric route's (and thus
interface's) servers.
David Drysdale (22 Feb 2017)
- [Sergii Pylypenko brought this change]
docs: fixed references to ares_set_local_ip4 and ares_set_local_ip6
- [Calle Wilund brought this change]
ares test: fix win32 build errors with virtual socket function tests
The added api requires both some typedefs not previously imported
into the test build + the test code did not fully deal with
socket differences on windows.
- [Calle Wilund brought this change]
ares_process: fix return type of socket_create function (win32 warning)
Daniel Stenberg (31 Jan 2017)
- [Calle Wilund brought this change]
ares_set_socket_functions: Add man page
Providing some rudimentary documentation for the added functionality
Closes #72
- [Calle Wilund brought this change]
ares-test: Add test helpers and cases for virtual socket IO
* Added test case macro to automatically run tests twice, once "normal",
once with virtual IO.
* Changed most "live" query tests to run in dual mode to verify
at least simple socket IO via virtual functions
* Added test case for settings/duping socket functions & callback data
- [elcallio brought this change]
Implement using virtual socket IO functions when set
Uses virtual socket IO functions when set on a channel.
Note that no socket options are set, nor is any binding
done by the library in this case, since the client defining
these is probably more suited to deal with this.
- [elcallio brought this change]
Add virtual function set for socket IO
Defines a structure of basic create, close, read/write
functions as virtual function calls, settable for individual
c-ares channels.
David Drysdale (30 Jan 2017)
- test: ignore aresfuzzname binary
Gregor Jasny (14 Jan 2017)
- [Stephen Sorley brought this change]
Always use check_symbol_exists instead of check_function_exists.
- Also add includes to TARGETS_INST_DEST
- [Stephen Sorley brought this change]
Windows build fixes
- CMake: Export targets
- CMake: Use GNUInstallDirs for install location defaults
David Drysdale (11 Jan 2017)
- Update Makefile.am for renamed INSTALL.md
GitHub (11 Jan 2017)
- [David Drysdale brought this change]
docs: convert INSTALL to MarkDown & tweak (#83)
- [Gregor Jasny brought this change]
Merge pull request #77 from stephen-sorley/cmake_modernize
Updated CMake minimum version to 2.8.12.
Stephen Sorley (4 Jan 2017)
- Changed executables to depend directly on internal libcares target, instead of against
the external-facing alias targets.
- Updated Travis to pull CMake 2.8.12 from kubuntu-backports ppa.
- Updated CMake minimum version to 2.8.12.
Changed the way usage requirements (include dirs, compile defs, dependent libraries) are specified, to match the recommended standard practice for modern CMake. This involves using target-specific functions (target_include_directories, target_compile_definitions, etc.), along with the PUBLIC, PRIVATE or INTERFACE modifiers.
Updated chain-building support to imitate new-style Find modules (import libs), instead of old-style Find modules (cache variables).
David Drysdale (26 Dec 2016)
- [Chris Araman brought this change]
configure: clock_gettime workaround (#75)
Commits 7518c26, c41726b, and bc14ee7 brought this workaround to the CMake build system. This expands it to the autoconf build system.
Fixes #71
- test: add fuzz entrypoint for ares_create_query()
- test: Add gTest/gMock files to SOURCES
Built tarballs are not including all of the files needed
to build the test suite because they are missing from the
<target>_SOURCES variable in Makefile.am.
- travis: Move build scripts under travis/
Travis doesn't always propagate errors in inline multi-line
scripts, so move them all to be explicit shell scripts, each
with set -e.
- travis: check distributed tarball builds
Daniel Stenberg (25 Oct 2016)
- dist: ship msvc_ver.inc too
Reported-by: Bruce Stephens
Fixes #69
- [Aaron Bieber brought this change]
fix build on OpenBSD
- ares_version.h: bump, working on 1.12.1 now
GitHub (18 Oct 2016)
- [Gregor Jasny brought this change]
Merge pull request #64 from bradh352/master
Add CMake build system support to C-Ares.
Brad House (5 Oct 2016)
- suggested PROJECT_NAME change broke chain building as it needs the magic PROJECT_NAME set in the ADD_LIBRARY for matching. Fix to make both goals work
- update MacOSX 10.12 detection
- Expand XCode clock_gettime fix to include MacOS 10.12, not just iOS10
David Drysdale (4 Oct 2016)
- Revert "travis: work around bug in PyCParser"
This reverts commit a24a10a348fc00b8cfd684d91894a1df14880ea9.
- travis: work around bug in PyCParser
See https://github.com/pyca/cryptography/issues/3187
Brad House (3 Oct 2016)
- PROJECT_SOURCE_DIR instead of CMAKE_CURRENT_SOURCE_DIR as per @gjasny
- use a project name of c-ares as per @gjasny
- Import curl conversion of Makefile.inc to cmake form dynamically as per bdoetsch@ameritech.net to make maintaining multiple build systems easier
Daniel Stenberg (30 Sep 2016)
- dist: add ares_library_initialized.* to the tarball
David Drysdale (30 Sep 2016)
- test: check ares_create_query with too-long name
Daniel Stenberg (30 Sep 2016)
- man pages: minor formatting edits
Brad House (29 Sep 2016)
- merge fc7917e from @daviddrysdale ... travis build updates for cmake
- cleanups as per @gjasny ... Use naked IF statements and use NOT DEFINED
Version 1.12.0 (29 Sep 2016)
Daniel Stenberg (29 Sep 2016)
- RELEASE-NOTES: 1.12.0
- [David Drysdale brought this change]
ares-test-misc: test ares_create_query with escaped trailing dot
- CMake: Unify library versioning with the libtool methodology to make keeping library versions in sync easier with the autotools build system
Daniel Stenberg (29 Sep 2016)
- ares_library_initialized.3: added
- make: bump CARES_VERSION_INFO for release
David Drysdale (29 Sep 2016)
- man: update ares_init_options.3
Daniel Stenberg (29 Sep 2016)
- ares_library_init.3: corrected the ares_library_init_mem proto
Brad House (28 Sep 2016)
- XCode v8 introduced clock_gettime() for iOS v10. However, it is a weak symbol, which means when earlier iOS versions try to use clock_gettime() it results in a crash due to the missing symbol. Detect this condition and do not set HAVE_CLOCK_GETTIME_MONOTONIC.
- Adds cmake build system support to C-Ares.
The patch does not modify any source files, it only adds 3 new files
(CMakelists.txt, ares_build.h.cmake, ares_config.h.cmake) which form the
build system. I've tried to go through as much of the autotools tests and
extracted what I thought was appropriate, though many of the tests aren't
as in-depth in CMake as they are for autotools ... it is unclear why some
of them exist at all, I'm guessing for legacy systems that CMake probably
doesn't support anyhow.
Building the library, and examples (adig, ahost, acountry) plus installation
should work across a large number of tested platforms. The tests have not
yet been integrated.
Daniel Stenberg (27 Sep 2016)
- README.md: remove space from link
- README: link to the correct c-ares badge!
Reported-by: David Hotham
Fixes #63
- docs: minor formatting edits
- ares_destroy.3: formatting polish
- ares_init.3: split the init docs into two separate man pages
