/*
 * strdup() implementation with error checking (using xmalloc).
 *
 * Copyright (c) 1988, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */
#define YASM_LIB_INTERNAL
#include "util.h"
RCSID("$Id$");

#include "coretype.h"

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)strdup.c	8.1 (Berkeley) 6/4/93";
#endif /* LIBC_SCCS and not lint */


#ifndef STDC_HEADERS
size_t strlen(const char *);
# ifndef HAVE_MEMCPY
void bcopy(const void *, void *, size_t);
#  define memcpy(d, s, n) bcopy((s), (d), (n))
# else
void memcpy(void *, const void *, size_t);
# endif
#endif

#ifdef WITH_DMALLOC
#undef yasm__xstrdup
#endif

char *
yasm__xstrdup(const char *str)
{
	size_t len;
	char *copy;

	len = strlen(str) + 1;
	copy = yasm_xmalloc(len);
	memcpy(copy, str, len);
	return (copy);
}

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

	copy = yasm_xmalloc(len+1);
	memcpy(copy, str, len);
	copy[len] = '\0';
	return (copy);
}