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Thomas Munro d837fb0292 Replace pg_mblen() with bounds-checked versions. ... A corrupted string could cause code that iterates with pg_mblen() to overrun its buffer. Fix, by converting all callers to one of the following: 1. Callers with a null-terminated string now use pg_mblen_cstr(), which raises an "illegal byte sequence" error if it finds a terminator in the middle of the sequence. 2. Callers with a length or end pointer now use either pg_mblen_with_len() or pg_mblen_range(), for the same effect, depending on which of the two seems more convenient at each site. 3. A small number of cases pre-validate a string, and can use pg_mblen_unbounded(). The traditional pg_mblen() function and COPYCHAR macro still exist for backward compatibility, but are no longer used by core code and are hereby deprecated. The same applies to the t_isXXX() functions. Security: CVE-2026-2006 Backpatch-through: 14 Co-authored-by: Thomas Munro <thomas.munro@gmail.com> Co-authored-by: Noah Misch <noah@leadboat.com> Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi> Reported-by: Paul Gerste (as part of zeroday.cloud) Reported-by: Moritz Sanft (as part of zeroday.cloud)		4 months ago
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data	…
expected	Validate ltree siglen GiST option to be int-aligned	3 years ago
sql	Validate ltree siglen GiST option to be int-aligned	3 years ago
.gitignore	…
Makefile	Adjust MSVC build scripts to parse Makefiles for defines	5 years ago
_ltree_gist.c	Remove useless casts to (void *) in arguments of some system functions	3 years ago
_ltree_op.c	Split up guc.c for better build speed and ease of maintenance.	4 years ago
crc32.c	Adjust MSVC build scripts to parse Makefiles for defines	5 years ago
crc32.h	…
lquery_op.c	Replace pg_mblen() with bounds-checked versions.	4 months ago
ltree--1.0--1.1.sql	…
ltree--1.1--1.2.sql	…
ltree--1.1.sql	…
ltree.control	…
ltree.h	Replace pg_mblen() with bounds-checked versions.	4 months ago
ltree_gist.c	Pre-beta mechanical code beautification.	3 years ago
ltree_io.c	Replace pg_mblen() with bounds-checked versions.	4 months ago
ltree_op.c	Clean up more code using "(expr) ? true : false"	5 years ago
ltreetest.sql	…
ltxtquery_io.c	Replace pg_mblen() with bounds-checked versions.	4 months ago
ltxtquery_op.c	Fix multibyte issue in ltree_strncasecmp().	6 months ago
meson.build	Update copyright for 2023	3 years ago