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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Copyright (c) 1986 AT&T
* All Rights Reserved
*/
#ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.1 */
#include <stdio.h>
#include "wish.h"
char *
memshift(dst, src, len)
char *dst;
char *src;
int len;
{
register char *d;
register char *s;
register int n;
extern char *memcpy();
if (dst < src)
if (dst + len <= src)
memcpy(dst, src, len);
else
for (s = src, d = dst, n = len; n > 0; n--)
*d++ = *s++;
else
if (src + len <= dst)
return memcpy(dst, src, len);
else
for (n = len, s = src + n, d = dst + n; n > 0; n--)
*--d = *--s;
return dst;
}
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