wsncpy.c revision 7257d1b4d25bfac0c802847390e98a464fd787ac
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1986 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Copy s2 to s1, truncating or null-padding to always copy n characters.
* Return s1.
*/
#pragma weak _wcsncpy = wcsncpy
#pragma weak _wsncpy = wsncpy
#include "lint.h"
#include <stdlib.h>
#include <wchar.h>
wchar_t *
wcsncpy(wchar_t *s1, const wchar_t *s2, size_t n)
{
wchar_t *os1 = s1;
n++;
while ((--n > 0) && ((*s1++ = *s2++) != 0))
;
if (n > 0)
while (--n > 0)
*s1++ = 0;
return (os1);
}
wchar_t *
wsncpy(wchar_t *s1, const wchar_t *s2, size_t n)
{
return (wcsncpy(s1, s2, n));
}