rsyslog/compat/strndup.c
2018-07-31 09:44:27 +02:00

41 lines
1.1 KiB
C

/* compatibility file for systems without strndup.
*
* Copyright 2015 Rainer Gerhards and Adiscon
*
* This file is part of rsyslog.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
* -or-
* see COPYING.ASL20 in the source distribution
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "config.h"
#ifndef HAVE_STRNDUP
#include <stdlib.h>
#include <string.h>
char *
strndup(const char *s, size_t n)
{
const size_t len = strlen(s);
if(len <= n)
return strdup(s);
char *const new_s = malloc(n+1);
if(new_s == NULL)
return NULL;
memcpy(new_s, s, n);
new_s[n] = '\0';
return new_s;
}
#endif /* #ifndef HAVE_STRNDUP */