1 /*****************************************************************************
2 * strnlen.c: POSIX strnlen() replacement
3 *****************************************************************************
4 * Copyright © 1998-2008 the VideoLAN project
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
19 *****************************************************************************/
27 size_t strnlen (const char *str, size_t max)
29 const char *end = memchr (str, 0, max);
30 return end ? (size_t)(end - str) : max;