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/* $OpenBSD: strndup.c,v 1.3 2019/01/25 00:19:25 millert Exp $ */
/*
* Copyright (c) 2010 Todd C. Miller <millert@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
char *
strndup(const char *str, size_t maxlen)
{
char *copy;
size_t len;
len = strnlen(str, maxlen);
copy = malloc(len + 1);
if (copy != NULL) {
(void)memcpy(copy, str, len);
copy[len] = '\0';
}
return copy;
}
DEF_WEAK(strndup);
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