postgresql/src/tools
Tom Lane 00652b3c9f Make our usage of memset_s() conform strictly to the C11 standard.
Per the letter of the C11 standard, one must #define
__STDC_WANT_LIB_EXT1__ as 1 before including <string.h> in order to
have access to memset_s().  It appears that many platforms are lenient
about this, because we weren't doing it and yet the code appeared to
work anyway.  But we now find that with -std=c11, macOS is strict and
doesn't declare memset_s, leading to compile failures since we try to
use it anyway.  (Given the lack of prior reports, perhaps this is new
behavior in the latest SDK?  No matter, we're clearly in the wrong.)

In addition to the immediate problem, which could be fixed merely by
adding the needed #define to explicit_bzero.c, it seems possible that
our configure-time probe for memset_s() could fail in case a platform
implements the function in some odd way due to this spec requirement.
This concern can be fixed in largely the same way that we dealt with
strchrnul() in 6da2ba1d8: switch to using a declaration-based
configure probe instead of a does-it-link probe.

Back-patch to v13 where we started using memset_s().

Reported-by: Lakshmi Narayana Velayudam <dev.narayana.v@gmail.com>
Author: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/CAA4pTnLcKGG78xeOjiBr5yS7ZeE-Rh=FaFQQGOO=nPzA1L8yEA@mail.gmail.com
Backpatch-through: 13
2025-05-18 12:45:55 -04:00
..
ci ci: Fix cached MacPorts installation management 2024-11-27 11:30:19 -05:00
editors Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
ifaddrs Update copyright for 2022 2022-01-07 19:04:57 -05:00
msvc Make our usage of memset_s() conform strictly to the C11 standard. 2025-05-18 12:45:55 -04:00
perlcheck Fix pgperlsyncheck following SSL TAP test refactoring 2022-04-10 09:19:21 -04:00
pginclude Skip SectionMemoryManager.h in cpluspluscheck. 2024-11-28 15:47:17 +13:00
pgindent Add test of various escape functions 2025-02-10 10:03:39 -05:00
add_commit_links.pl Improve Perl script which adds commit links to release notes 2024-09-19 08:45:32 -04:00
ccsym tools/ccsym: update for modern versions of gcc 2015-01-20 13:02:58 -05:00
check_bison_recursion.pl Update copyright for 2022 2022-01-07 19:04:57 -05:00
codelines Fix remaining stray references to CVS. 2010-09-22 19:51:39 -04:00
copyright.pl Avoid re-writing files unnecessarily in src/tools/copyright.pl. 2022-04-11 11:20:20 -04:00
find_badmacros Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
find_static Fix omission of -X (--no-psqlrc) in some psql invocations. 2015-12-28 11:46:43 -05:00
find_typedef Refer to OS X as "macOS", except for the port name which is still "darwin". 2016-09-25 15:40:57 -04:00
fix-old-flex-code.pl Update copyright for 2022 2022-01-07 19:04:57 -05:00
gen_keywordlist.pl Update copyright for 2022 2022-01-07 19:04:57 -05:00
git-external-diff Preserve information on use of git-external-diff 2018-05-24 23:45:31 +09:30
git_changelog Update copyright for 2022 2022-01-07 19:04:57 -05:00
make_ctags Fix make_etags breakage on certain platforms. 2023-06-14 11:11:18 +09:00
make_etags Improve missing-program error handling in make_ctags and make_etags. 2019-01-13 13:33:50 -05:00
make_mkid Add another pgdefine path check, and a cvs-git change. 2011-08-26 21:52:35 -04:00
mark_pgdllimport.pl Pre-beta mechanical code beautification. 2022-05-12 15:17:30 -04:00
PerfectHash.pm Pre-beta mechanical code beautification. 2022-05-12 15:17:30 -04:00
pgtest pgtest: run clean, build, and check stages separately 2018-07-28 15:34:06 -04:00
RELEASE_CHANGES scripts: add Perl script to add links to release notes 2024-09-16 13:26:37 -04:00
testint128.c Update copyright for 2022 2022-01-07 19:04:57 -05:00
valgrind.supp pgstat: store statistics in shared memory. 2022-04-06 21:29:46 -07:00
version_stamp.pl Update copyright for 2022 2022-01-07 19:04:57 -05:00
win32tzlist.pl Update copyright for 2022 2022-01-07 19:04:57 -05:00