From 252601302d45036817546c533743e5918b6b86e8 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 5 May 2024 19:38:31 +0200 Subject: Adding upstream version 1.21.3. Signed-off-by: Daniel Baumann --- lib/strnlen.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 lib/strnlen.c (limited to 'lib/strnlen.c') diff --git a/lib/strnlen.c b/lib/strnlen.c new file mode 100644 index 0000000..c8fc69c --- /dev/null +++ b/lib/strnlen.c @@ -0,0 +1,30 @@ +/* Find the length of STRING, but scan at most MAXLEN characters. + Copyright (C) 2005-2007, 2009-2022 Free Software Foundation, Inc. + Written by Simon Josefsson. + + This file is free software: you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + This file is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see . */ + +#include + +#include + +/* Find the length of STRING, but scan at most MAXLEN characters. + If no '\0' terminator is found in that many characters, return MAXLEN. */ + +size_t +strnlen (const char *string, size_t maxlen) +{ + const char *end = memchr (string, '\0', maxlen); + return end ? (size_t) (end - string) : maxlen; +} -- cgit v1.2.3