mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-24 05:50:14 +00:00
0f4254311e
It also cleanups the multiple inclusion by leaving the ifunc implementation to undef the weak_alias and libc_hidden_def. Co-authored-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
39 lines
1.3 KiB
C
39 lines
1.3 KiB
C
/* Find the length of STRING, but scan at most MAXLEN characters.
|
|
Copyright (C) 1991-2023 Free Software Foundation, Inc.
|
|
|
|
The GNU C Library 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.
|
|
|
|
The GNU C Library 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 the GNU C Library; see the file COPYING.LIB. If
|
|
not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
#include <string.h>
|
|
|
|
/* Find the length of S, but scan at most MAXLEN characters. If no
|
|
'\0' terminator is found in that many characters, return MAXLEN. */
|
|
|
|
#ifdef STRNLEN
|
|
# define __strnlen STRNLEN
|
|
#endif
|
|
|
|
size_t
|
|
__strnlen (const char *str, size_t maxlen)
|
|
{
|
|
const char *found = memchr (str, '\0', maxlen);
|
|
return found ? found - str : maxlen;
|
|
}
|
|
|
|
#ifndef STRNLEN
|
|
weak_alias (__strnlen, strnlen)
|
|
libc_hidden_def (__strnlen)
|
|
libc_hidden_def (strnlen)
|
|
#endif
|