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Revision 1.1, Tue Feb 27 11:16:23 2018 UTC (2 years, 5 months ago) by schwarze
Branch: MAIN
CVS Tags: VERSION_1_14_5, VERSION_1_14_4

Add strndup(3) compat implementation.
Jan Stary reports that MacOS X Snow Leopard and older lacks it.

#include "config.h"

#if HAVE_STRNDUP

int dummy;

#else

/* $Id: compat_strndup.c,v 1.1 2018/02/27 11:16:23 schwarze Exp $ */
/* OpenBSD: strndup.c,v 1.2 2015/08/31 02:53:57 guenther Exp */
/*
 * Copyright (c) 2010 Todd C. Miller <Todd.Miller@courtesan.com>
 *
 * 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 <stdlib.h>
#include <string.h>

char *
strndup(const char *str, size_t maxlen)
{
	char *copy;
	size_t len;

	for (len = 0; len < maxlen && str[len] != '\0'; len++)
		continue;

	copy = malloc(len + 1);
	if (copy != NULL) {
		(void)memcpy(copy, str, len);
		copy[len] = '\0';
	}

	return copy;
}

#endif