/* compatibility file for systems without strndup.

 *

 * Copyright 2015 Rainer Gerhards and Adiscon

 *

 * This file is part of liblognorm.

 *

 * 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(len+1);

	if(new_s == NULL)

		return NULL;

	memcpy(new_s, s, len);

	new_s[len] = '\0';

	return new_s;

}

#else /* #ifndef HAVE_STRNDUP */

/* Solaris must have at least one symbol inside a file, so we provide

 * it here ;-)

 */

void dummy_dummy_required_for_solaris_do_not_use(void)

{

}

#endif /* #ifndef HAVE_STRNDUP */