view C/port/strdup.c @ 394:fdceef4be88b

Hash: remove class, use namespace
author David Demelier <markand@malikania.fr>
date Mon, 28 Sep 2015 15:45:35 +0200
parents 0b576ee64d45
children
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/*
 * strdup.c -- duplicate a string
 *
 * Copyright (c) 2011, 2012, David Demelier <markand@malikania.fr>
 *
 * Permission to use, copy, modify, and/or 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 <stdio.h>
#include <stdlib.h>
#include <string.h>

char *
strdup(const char *src)
{
	char *dst;
	size_t len;

	len = strlen(src);

	if ((dst = calloc(len + 1, sizeof (char))) == NULL)
		return NULL;

	return strcpy(dst, src);
}