1/* Find the length of STRING + 1, but scan at most MAXLEN bytes. 2 Copyright (C) 2005-2006 Free Software Foundation, Inc. 3 4 This program is free software; you can redistribute it and/or modify 5 it under the terms of the GNU General Public License as published by 6 the Free Software Foundation; either version 2, or (at your option) 7 any later version. 8 9 This program is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 GNU General Public License for more details. 13 14 You should have received a copy of the GNU General Public License 15 along with this program; if not, write to the Free Software Foundation, 16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ 17 18#include <config.h> 19 20/* Specification. */ 21#include "strnlen1.h" 22 23#include <string.h> 24 25/* Find the length of STRING + 1, but scan at most MAXLEN bytes. 26 If no '\0' terminator is found in that many characters, return MAXLEN. */ 27/* This is the same as strnlen (string, maxlen - 1) + 1. */ 28size_t 29strnlen1 (const char *string, size_t maxlen) 30{ 31 const char *end = (const char *) memchr (string, '\0', maxlen); 32 if (end != NULL) 33 return end - string + 1; 34 else 35 return maxlen; 36} 37