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deps: update c-ares to 1.27.0
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PR-URL: #51846
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>
Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
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299 changes: 189 additions & 110 deletions deps/cares/CHANGES
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Changelog for the c-ares project. Generated with git2changes.pl

Version 1.27.0 (22 Feb 2024)

GitHub (22 Feb 2024)
- [Brad House brought this change]

Release 1.27.0 (#715)

release prep for 1.27.0 release

- [Brad House brought this change]

Merge pull request from GHSA-mg26-v6qh-x48q

- [Oliver Welsh brought this change]

Add flag to not use a default local named server on channel initialization (#713)

Hello, I work on an application for Microsoft which uses c-ares to
perform DNS lookups. We have made some minor changes to the library over
time, and would like to contribute these back to the project in case
they are useful more widely. This PR adds a new channel init flag,
described below.

Please let me know if I can include any more information to make this PR
better/easier for you to review. Thanks!

**Summary**
When initializing a channel with `ares_init_options()`, if there are no
nameservers available (because `ARES_OPT_SERVERS` is not used and
`/etc/resolv.conf` is either empty or not available) then a default
local named server will be added to the channel.

However in some applications a local named server will never be
available. In this case, all subsequent queries on the channel will
fail.

If we know this ahead of time, then it may be preferred to fail channel
initialization directly rather than wait for the queries to fail. This
gives better visibility, since we know that the failure is due to
missing servers rather than something going wrong with the queries.

This PR adds a new flag `ARES_FLAG_NO_DFLT_SVR`, to indicate that a
default local named server should not be added to a channel in this
scenario. Instead, a new error `ARES_EINITNOSERVER` is returned and
initialization fails.

**Testing**
I have added 2 new FV tests:
- `ContainerNoDfltSvrEmptyInit` to test that initialization fails when
no nameservers are available and the flag is set.
- `ContainerNoDfltSvrFullInit` to test that initialization still
succeeds when the flag is set but other nameservers are available.

Existing FVs are all passing.

**Documentation**
I have had a go at manually updating the docs to describe the new
flag/error, but couldn't see any contributing guidance about testing
this. Please let me know if you'd like anything more here.

---------

Fix By: Oliver Welsh (@oliverwelsh)

Brad House (18 Feb 2024)
- badge should be only main branch

- put logo in readme

- clang-format

GitHub (17 Feb 2024)
- [Brad House brought this change]

Add ares_queue_active_queries() (#712)

Add a function to request the number of active queries from an ares
channel. This will return the number of inflight requests to dns
servers. Some functions like `ares_getaddrinfo()` when using `AF_UNSPEC`
may enqueue multiple queries which will be reflected in this count.

In the future, if we implement support for queuing (e.g. for throttling
purposes), and/or implement support for tracking user-requested queries
(e.g. for cancelation), we can provide additional functions for
inspecting those queues.

Fix By: Brad House (@bradh352)

- [Vojtěch Vobr brought this change]

fix leaking DNS suffix search list on Windows (#711)

ares__strsplit provides a newly allocated buffer, so suffix list in
line variable isn't referenced anymore. Related ares_free seems to
have gone missing during refactoring made in #594

Fix By: Vojtěch Vobr (@vojtechvobr)

- [Brad House brought this change]

Add ares_queue_wait_empty() for use with EventThreads (#710)

It may be useful to wait for the queue to be empty under certain conditions (mainly test cases), expose a function to efficiently do this and rework test cases to use it.

Fix By: Brad House (@bradh352)

- [Cheng Zhao brought this change]

Fix warning about ignoring result of write (#709)

Fix the compiler warning from clang:

```
ares_event_wake_pipe.c:120:3: error: ignoring return value of function declared with 'warn_unused_result' attribute [-Werror,-Wunused-result]
120 | write(p->filedes[1], "1", 1);
| ^~~~~ ~~~~~~~~~~~~~~~~~~~~~
1 error generated.
```

Fix By: Cheng Zhao (@zcbenz)

Brad House (5 Feb 2024)
- CMake: don't override target output locations if not top-level

CMake was unconditionally setting output locations globally, but
it should not do that if it is not the top-level project (e.g.
during chain building). Detect this fact and only set the output
location when top level.

Fixes Issue: #708
Fix By: Anthony Alayo (@anthonyalayo)

- make docs match PR #705

GitHub (31 Jan 2024)
- [Cristian Rodríguez brought this change]

lower EDNSPACKETSZ to 1232 (#705)

In 2020, it was agreed this is optimal maximum size and all
major server software was updated to reflect this.

see https://www.dnsflagday.net/2020/#faq

Fix By: Cristian Rodríguez (@crrodriguez)

Brad House (30 Jan 2024)
- fix version

- fix typo

- bad symlink

- attempt to fix pkgconfig on windows for static builds

GitHub (28 Jan 2024)
- [Andriy Utkin brought this change]

docs/ares_init_options.3: fix args in analogy (#701)

Fix By: Andriy Utkin <hello@autkin.net>

- [Brad House brought this change]

sonarcloud: fix minor codesmells (#702)

Fix minor codesmells, mostly related to missing 'const' in the new event system.

Fix By: Brad House (@bradh352)

Brad House (26 Jan 2024)
- remove outdated copyright text

- spelling

- sanity check GTest includes GMock component

GitHub (26 Jan 2024)
- [Brad House brought this change]

build-time disabled threads breaks c-ares (#700)

Regression introduced in 1.26.0, building c-ares with threading disabled results in ares_init{_options}() failing.

Also adds a new CI test case to prevent this regression in the future.

Fixes Bug: #699
Fix By: Brad House (@bradh352)

Version 1.26.0 (25 Jan 2024)

Brad House (25 Jan 2024)
Expand Down Expand Up @@ -6035,113 +6224,3 @@ Yang Tse (30 Jan 2013)
URL: http://curl.haxx.se/mail/lib-2013-01/0306.html

- zz40-xc-ovr.m4: reinstate strict AC_REQUIRE macro dependencies

- zz40-xc-ovr.m4: avoid double single-quote usage

- zz40-xc-ovr.m4: parentheses balancing of 'case' statements

m4 quadrigraph shell comment technique allows proper autoconf
parentheses balancing in shell 'case' statements. The presence
of unbalanced parentheses may otherwise trigger expansion bugs.

- zz40-xc-ovr.m4: internals overhauling

- Update comments
- Execute commands in subshells
- Faster path separator check
- Fix missing 'test' command
- Rename private macros
- Minimize AC_REQUIRE usage

- zz40-xc-ovr.m4: redirect errors and warnings to stderr

- configure: use XC_CONFIGURE_PREAMBLE early checks

Some basic checks we make were placed early enough in generated
configure script when using autoconf 2.5X versions. Newer autoconf
versions expand these checks much further into the configure script,
rendering them useless. Using XC_CONFIGURE_PREAMBLE fixes placement
of early intended checks across all our autoconf supported versions.

- zz40-xc-ovr.m4: provide XC_CONFIGURE_PREAMBLE macro

- configure: autotools compatibility fixes - step I

Fix proper macro expansion order across autotools versions for
C compiler and preprocessor program checks.

- configure: fix automake 1.13 compatibility

Tested with:

buildconf: autoconf version 2.69
buildconf: autom4te version 2.69
buildconf: autoheader version 2.69
buildconf: automake version 1.13.1
buildconf: aclocal version 1.13.1
buildconf: libtool version 2.4
buildconf: GNU m4 version 1.4.16

- ares_private.h: use again memdebug.h instead of curl_memdebug.h

- configure.ac: replace AM_CONFIG_HEADER with AC_CONFIG_HEADERS

automake 1.13 errors if AM_CONFIG_HEADER is used in configure script.

- cares-override.m4: provide AC_CONFIG_MACRO_DIR definition conditionally

Provide a 'traceable' AC_CONFIG_MACRO_DIR definition only when using
an autoconf version that does not provide it, instead of what we were
doing up to now of providing and overriding AC_CONFIG_MACRO_DIR for
all autoconf versions.

- ares_private.h: use curl_memdebug.h instead of memdebug.h

- vc6cares.dsp: add ares_create_query.c and ares_parse_soa_reply.c

- cares-functions.m4: improve gethostname arg 2 data type check

- setup_once.h: HP-UX specific 'bool', 'false' and 'true' definitions.

Also reverts commit bceb40095a

- configure: check if compiler halts on function prototype mismatch

- cares-functions.m4: add gethostname arg 2 data type check and definition

- cares-functions.m4: update thread-safeness detection of getaddrinfo()

Take in account that POSIX standard Issue 7 drops h_errno support. Now, we also
consider getaddrinfo() to be thread-safe when (_POSIX_C_SOURCE >= 200809L) or
(_XOPEN_SOURCE >= 700) independently of whether h_errno exists or not.

Take in account that h_errno might be a modifiable lvalue not defined as
a C preprocessor macro.

- setup_once.h: HP-UX <sys/socket.h> issue workaround

Issue: When building a 32bit target with large file support HP-UX
<sys/socket.h> header file may simultaneously provide two different
sets of declarations for sendfile and sendpath functions, one with
static and another with external linkage. Given that we do not use
mentioned functions we really don't care which linkage is the
appropriate one, but on the other hand, the double declaration emmits
warnings when using the HP-UX compiler and errors when using modern
gcc versions resulting in fatal compilation errors.

Mentioned issue is now fixed as long as we don't use sendfile nor
sendpath functions.

- setup_once.h: refactor inclusion of <unistd.h> and <sys/socket.h>

Inclusion of these two header files now done in setup_once.h

- Header inclusion clean-up

Remove header inclusions already done in setup_once.h

- setup_once.h: HP-UX specific TRUE and FALSE definitions

Some HP-UX system headers require TRUE defined to 1 and FALSE to 0.

- ares_timeout.c: fix compiler warning
20 changes: 12 additions & 8 deletions deps/cares/CMakeLists.txt
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Expand Up @@ -12,10 +12,10 @@ INCLUDE (CheckCSourceCompiles)
INCLUDE (CheckStructHasMember)
INCLUDE (CheckLibraryExists)

PROJECT (c-ares LANGUAGES C VERSION "1.26.0" )
PROJECT (c-ares LANGUAGES C VERSION "1.27.0" )

# Set this version before release
SET (CARES_VERSION "1.26.0")
SET (CARES_VERSION "1.27.0")

INCLUDE (GNUInstallDirs) # include this *AFTER* PROJECT(), otherwise paths are wrong.

Expand All @@ -30,7 +30,7 @@ INCLUDE (GNUInstallDirs) # include this *AFTER* PROJECT(), otherwise paths are w
# For example, a version of 4:0:2 would generate output such as:
# libname.so -> libname.so.2
# libname.so.2 -> libname.so.2.2.0
SET (CARES_LIB_VERSIONINFO "13:0:11")
SET (CARES_LIB_VERSIONINFO "14:0:12")


OPTION (CARES_STATIC "Build as a static library" OFF)
Expand Down Expand Up @@ -91,11 +91,15 @@ IF (CARES_SYMBOL_HIDING)
CMAKE_POLICY (SET CMP0063 NEW)
ENDIF ()

# Keep build organized.
SET (CMAKE_RUNTIME_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/${CMAKE_INSTALL_BINDIR}")
SET (CMAKE_LIBRARY_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}")
SET (CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}")
SET (PACKAGE_DIRECTORY ${PROJECT_BINARY_DIR}/package)
# Keep build organized, but only if it is the top-level project.
# CMake 3.21 or later has PROJECT_IS_TOP_LEVEL, but we aren't yet depending on
# that version.
IF (CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
SET (CMAKE_RUNTIME_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/${CMAKE_INSTALL_BINDIR}")
SET (CMAKE_LIBRARY_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}")
SET (CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}")
SET (PACKAGE_DIRECTORY ${PROJECT_BINARY_DIR}/package)
ENDIF ()

# Destinations for installing different kinds of targets (pass to install command).
SET (TARGETS_INST_DEST
Expand Down
8 changes: 3 additions & 5 deletions deps/cares/README.md
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c-ares
======
# [![c-ares logo](https://c-ares.org/art/c-ares-logo.svg)](https://c-ares.org/)

[![Build Status](https://api.cirrus-ci.com/github/c-ares/c-ares.svg)](https://cirrus-ci.com/github/c-ares/c-ares)
[![Build Status](https://api.cirrus-ci.com/github/c-ares/c-ares.svg?branch=main)](https://cirrus-ci.com/github/c-ares/c-ares)
[![Windows Build Status](https://ci.appveyor.com/api/projects/status/aevgc5914tm72pvs/branch/master?svg=true)](https://ci.appveyor.com/project/c-ares/c-ares/branch/master)
[![Coverage Status](https://coveralls.io/repos/github/c-ares/c-ares/badge.svg)](https://coveralls.io/github/c-ares/c-ares)
[![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/291/badge)](https://bestpractices.coreinfrastructure.org/projects/291)
Expand Down Expand Up @@ -29,8 +28,7 @@ You'll find all c-ares details and news here:
https://c-ares.org/


Notes for c-ares hackers
------------------------
## Notes for c-ares hackers

* The distributed `ares_build.h` file is only intended to be used on systems
which can not run the also distributed configure script.
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