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HAProxy - Load balancer
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Tim Duesterhus cb8f13c26d BUG/MINOR: haproxy: Add missing free of server->(hostname|resolvers_id) 
Given the following example configuration:

    resolvers test
    	nameserver test 127.0.0.1:53
    listen foo
    	bind *:8080
    	server foo example.com resolvers test

Running a configuration check within valgrind reports:

    ==21995== 5 bytes in 1 blocks are definitely lost in loss record 1 of 30
    ==21995==    at 0x4C2DB8F: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
    ==21995==    by 0x5726489: strdup (strdup.c:42)
    ==21995==    by 0x4B2CFB: parse_server (server.c:2163)
    ==21995==    by 0x4680C1: cfg_parse_listen (cfgparse-listen.c:534)
    ==21995==    by 0x459E33: readcfgfile (cfgparse.c:2167)
    ==21995==    by 0x50778D: init (haproxy.c:2021)
    ==21995==    by 0x418262: main (haproxy.c:3133)
    ==21995==
    ==21995== 12 bytes in 1 blocks are definitely lost in loss record 3 of 30
    ==21995==    at 0x4C2DB8F: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
    ==21995==    by 0x5726489: strdup (strdup.c:42)
    ==21995==    by 0x4AC666: srv_prepare_for_resolution (server.c:1606)
    ==21995==    by 0x4B2EBD: parse_server (server.c:2081)
    ==21995==    by 0x4680C1: cfg_parse_listen (cfgparse-listen.c:534)
    ==21995==    by 0x459E33: readcfgfile (cfgparse.c:2167)
    ==21995==    by 0x50778D: init (haproxy.c:2021)
    ==21995==    by 0x418262: main (haproxy.c:3133)

with one more leak unrelated to `struct server`. After applying this
patch the leak is gone as expected.

This is a very minor leak that can only be observed if deinit() is called,
shortly before the OS will free all memory of the process anyway. No
backport needed.
2020-07-07 16:52:35 +02:00
.github CI: extend spellchecker whitelist 2020-06-26 11:26:52 +02:00
contrib CONTRIB: debug: add missing flags SI_FL_L7_RETRY & SI_FL_D_L7_RETRY 2020-06-28 16:05:39 +02:00
doc MINOR: config: make strict limits enabled by default 2020-07-07 16:52:35 +02:00
examples CLEANUP: assorted typo fixes in the code and comments 2020-06-26 11:27:28 +02:00
include MINOR: version: back to development, update status message 2020-07-07 16:38:51 +02:00
reg-tests BUG/MINOR: http-rules: Fix ACLs parsing for http deny rules 2020-06-30 09:32:03 +02:00
scripts CI: travis-ci: switch BoringSSL builds to ninja 2020-06-26 11:26:26 +02:00
src BUG/MINOR: haproxy: Add missing free of server->(hostname|resolvers_id) 2020-07-07 16:52:35 +02:00
tests REORG: include: split mini-clist into haproxy/list and list-t.h 2020-06-11 10:18:56 +02:00
.cirrus.yml CI: cirrus-ci: exclude slow reg-tests 2020-07-04 06:58:14 +02:00
.gitignore DOC: create a BRANCHES file to explain the life cycle 2019-06-15 22:00:14 +02:00
.travis.yml CI: travis-ci: switch BoringSSL builds to ninja 2020-06-26 11:26:26 +02:00
BRANCHES DOC: assorted typo fixes in the documentation 2020-03-09 14:45:58 +01:00
CHANGELOG [RELEASE] Released version 2.3-dev0 2020-07-07 16:39:18 +02:00
CONTRIBUTING DOC: assorted typo fixes in the documentation and Makefile 2020-03-06 10:49:55 +01:00
INSTALL MINOR: version: back to development, update status message 2020-07-07 16:38:51 +02:00
LICENSE LICENSE: add licence exception for OpenSSL 2012-09-07 13:52:26 +02:00
MAINTAINERS REORG: include: split hathreads into haproxy/thread.h and haproxy/thread-t.h 2020-06-11 10:18:56 +02:00
Makefile CLEANUP: makefile: update the outdated list of DEBUG_xxx options 2020-07-04 12:43:46 +02:00
README DOC: create a BRANCHES file to explain the life cycle 2019-06-15 22:00:14 +02:00
ROADMAP DOC: update the outdated ROADMAP file 2019-06-15 21:59:54 +02:00
SUBVERS BUILD: use format tags in VERDATE and SUBVERS files 2013-12-10 11:22:49 +01:00
VERDATE [RELEASE] Released version 2.2.0 2020-07-07 16:33:14 +02:00
VERSION [RELEASE] Released version 2.3-dev0 2020-07-07 16:35:28 +02:00

README 

The HAProxy documentation has been split into a number of different files for
ease of use.

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 :

  - doc/intro.txt for a quick introduction on HAProxy
  - doc/configuration.txt for the configuration's reference manual
  - doc/lua.txt for the Lua's reference manual
  - doc/SPOE.txt for how to use the SPOE engine
  - doc/network-namespaces.txt for how to use network namespaces under Linux
  - doc/management.txt for the management guide
  - doc/regression-testing.txt for how to use the regression testing suite
  - doc/peers.txt for the peers protocol reference
  - doc/coding-style.txt for how to adopt HAProxy's coding style
  - doc/internals for developer-specific documentation (not all up to date)