mirror of https://gitee.com/openkylin/wget.git
36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
|
/* Find the length of STRING + 1, but scan at most MAXLEN bytes.
|
||
|
|
Copyright (C) 2005-2006, 2009-2019 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
This program is free software: you can redistribute it and/or modify
|
||
|
|
it under the terms of the GNU General Public License as published by
|
||
|
|
the Free Software Foundation; either version 3 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 General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU General Public License
|
||
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
||
|
|
|
||
|
|
#include <config.h>
|
||
|
|
|
||
|
|
/* Specification. */
|
||
|
|
#include "strnlen1.h"
|
||
|
|
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
/* Find the length of STRING + 1, but scan at most MAXLEN bytes.
|
||
|
|
If no '\0' terminator is found in that many characters, return MAXLEN. */
|
||
|
|
/* This is the same as strnlen (string, maxlen - 1) + 1. */
|
||
|
|
size_t
|
||
|
|
strnlen1 (const char *string, size_t maxlen)
|
||
|
|
{
|
||
|
|
const char *end = (const char *) memchr (string, '\0', maxlen);
|
||
|
|
if (end != NULL)
|
||
|
|
return end - string + 1;
|
||
|
|
else
|
||
|
|
return maxlen;
|
||
|
|
}
|