/***************************************************************************** * strnlen.c: POSIX strnlen() replacement ***************************************************************************** * Copyright © 1998-2009 VLC authors and VideoLAN * * This program 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 program 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, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/ #ifdef HAVE_CONFIG_H # include #endif #include size_t strnlen (const char *str, size_t max) { const char *end = memchr (str, 0, max); return end ? (size_t)(end - str) : max; }