mirror of
https://github.com/coreutils/coreutils.git
synced 2024-12-11 19:04:13 +08:00
40 lines
1.3 KiB
C
40 lines
1.3 KiB
C
/* Find the length of STRING + 1, but scan at most MAXLEN bytes.
|
|
Copyright (C) 2005 Free Software Foundation, Inc.
|
|
|
|
This program is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU Library General Public License as published
|
|
by the Free Software Foundation; either version 2, 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library 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 <config.h>
|
|
#endif
|
|
|
|
/* 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 = memchr (string, '\0', maxlen);
|
|
if (end != NULL)
|
|
return end - string + 1;
|
|
else
|
|
return maxlen;
|
|
}
|