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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}