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/* Find the length of STRING, but scan at most MAXLEN characters.
Copyright (C) 1991-2025 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
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