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HAProxy - Load balancer
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Willy Tarreau dbba442740 BUILD: sockpair: fix build issue on macOS related to variable-length arrays 
In GH issue #3226, Sergey Fedorov (@barracuda156) reported that since
commit 10c14a1ed0 ("MINOR: proto_sockpair: send_fd_uxst: init iobuf,
cmsghdr, cmsgbuf to zeros"), macOS 10.6.8 with gcc 14.3.0 doesn't build
anymore:

  src/proto_sockpair.c: In function 'send_fd_uxst':
  src/proto_sockpair.c:246:49: error: variable-sized object may not be initialized except with an empty initializer
    246 |         char cmsgbuf[CMSG_SPACE(sizeof(int))] = {0};
        |                                                 ^
  src/proto_sockpair.c:247:45: error: variable-sized object may not be initialized except with an empty initializer
    247 |         char buf[CMSG_SPACE(sizeof(int))] = {0};
        |                                             ^

Upon investigation, it appears that the CMSG_SPACE() macro on this OS
looks too complex for gcc to consider it as a constant, so it takes
these buffers for variable-length arrays and cannot initialize them.

Let's move to a simple memset() instead, which Sergey confirmed fixes
the problem.

This needs to be backported as far as 3.1. Thanks to Sergey for the
report, the bisect and testing the fix.
2026-01-08 09:26:22 +01:00
.github CI: github: use git prefix for openssl-master.yml 2025-12-18 16:13:04 +01:00
addons MINOR: applet: Add a flag to know an applet is using HTX buffers 2025-08-25 11:11:05 +02:00
admin CLEANUP: assorted typo fixes in the code, commits and doc 2025-12-25 19:45:29 +01:00
dev CLEANUP: use the automatic alignment feature 2025-12-09 17:14:58 +01:00
doc [RELEASE] Released version 3.4-dev2 2026-01-07 11:02:12 +01:00
examples MINOR: mailers: warn if mailers are configured but not actually used 2025-06-27 16:41:18 +02:00
include MINOR: receiver: Remove tgroup_mask from struct shard_info 2026-01-07 09:27:12 +01:00
reg-tests CLEANUP: assorted typo fixes in the code, commits and doc 2025-12-25 19:45:29 +01:00
scripts REGTESTS: fix error when no test are skipped 2025-12-18 17:26:50 +01:00
src BUILD: sockpair: fix build issue on macOS related to variable-length arrays 2026-01-08 09:26:22 +01:00
tests TESTS: quic: add unit-tests for QUIC TX part 2025-09-08 14:49:03 +02:00
.cirrus.yml CI: cirrus-ci: bump FreeBSD image to 14-3 2025-10-09 14:06:48 +02:00
.gitattributes MINOR: Configure the cpp userdiff driver for *.[ch] in .gitattributes 2021-02-22 18:17:57 +01:00
.gitignore MINOR: tevt/dev: Add term_events tool 2025-01-31 10:41:50 +01:00
.mailmap DOC: update Tim's address in .mailmap 2021-09-16 09:14:14 +02:00
.travis.yml MEDIUM: mworker: remove USE_SYSTEMD requirement for -Ws 2024-11-20 12:07:38 +01:00
BRANCHES DOC: clarify the experimental status for certain features 2025-10-17 18:41:13 +02:00
BSDmakefile BUILD: makefile: commit the tiny FreeBSD makefile stub 2023-05-24 17:17:36 +02:00
CHANGELOG [RELEASE] Released version 3.4-dev2 2026-01-07 11:02:12 +01:00
CONTRIBUTING CLEANUP: assorted typo fixes in the code and comments 2025-04-02 11:12:20 +02:00
INSTALL MINOR: version: mention that it's development again 2025-11-26 16:11:47 +01:00
LICENSE LICENSE: add licence exception for OpenSSL 2012-09-07 13:52:26 +02:00
MAINTAINERS MAJOR: spoe: Let the SPOE back into the game 2024-05-22 09:04:38 +02:00
Makefile MINOR: net_helper: add sample converters to decode ethernet frames 2025-12-31 17:15:36 +01:00
README.md DOC: change the link to the FreeBSD CI in README.md 2024-06-03 15:21:29 +02:00
SUBVERS BUILD: use format tags in VERDATE and SUBVERS files 2013-12-10 11:22:49 +01:00
VERDATE [RELEASE] Released version 3.4-dev2 2026-01-07 11:02:12 +01:00
VERSION [RELEASE] Released version 3.4-dev2 2026-01-07 11:02:12 +01:00

README.md

HAProxy

alpine/musl AWS-LC openssl no-deprecated Illumos NetBSD FreeBSD VTest

HAProxy logo

HAProxy is a free, very fast and reliable reverse-proxy offering high availability, load balancing, and proxying for TCP and HTTP-based applications.

Installation

The INSTALL file describes how to build HAProxy. A list of packages is also available on the wiki.

Getting help

The discourse and the mailing-list are available for questions or configuration assistance. You can also use the slack or IRC channel. Please don't use the issue tracker for these.

The issue tracker is only for bug reports or feature requests.

Documentation

The HAProxy documentation has been split into a number of different files for ease of use. It is available in text format as well as HTML. The wiki is also meant to replace the old architecture guide.

Please refer to the following files depending on what you're looking for:

  • INSTALL for instructions on how to build and install HAProxy
  • BRANCHES to understand the project's life cycle and what version to use
  • LICENSE for the project's license
  • CONTRIBUTING for the process to follow to submit contributions

The more detailed documentation is located into the doc/ directory:

License

HAProxy is licensed under GPL 2 or any later version, the headers under LGPL 2.1. See the LICENSE file for a more detailed explanation.