michael@428: /* Find the length of STRING, but scan at most MAXLEN characters.
michael@428:    Copyright (C) 2005, 2006, 2007, 2009 Free Software Foundation, Inc.
michael@428:    Written by Simon Josefsson.
michael@428: 
michael@428:    This program is free software; you can redistribute it and/or modify
michael@428:    it under the terms of the GNU General Public License as published by
michael@428:    the Free Software Foundation; either version 2, or (at your option)
michael@428:    any later version.
michael@428: 
michael@428:    This program is distributed in the hope that it will be useful,
michael@428:    but WITHOUT ANY WARRANTY; without even the implied warranty of
michael@428:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
michael@428:    GNU General Public License for more details.
michael@428: 
michael@428:    You should have received a copy of the GNU General Public License
michael@428:    along with this program; if not, write to the Free Software Foundation,
michael@428:    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
michael@428: 
michael@428: #include <config.h>
michael@428: 
michael@428: #include <string.h>
michael@428: 
michael@428: /* Find the length of STRING, but scan at most MAXLEN characters.
michael@428:    If no '\0' terminator is found in that many characters, return MAXLEN.  */
michael@428: 
michael@428: size_t
michael@428: strnlen (const char *string, size_t maxlen)
michael@428: {
michael@428:   const char *end = memchr (string, '\0', maxlen);
michael@428:   return end ? (size_t) (end - string) : maxlen;
michael@428: }