xref: /onnv-gate/usr/src/lib/libc/port/i18n/wsncpy.c (revision 6812:febeba71273d)
10Sstevel@tonic-gate /*
20Sstevel@tonic-gate  * CDDL HEADER START
30Sstevel@tonic-gate  *
40Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*6812Sraf  * Common Development and Distribution License (the "License").
6*6812Sraf  * You may not use this file except in compliance with the License.
70Sstevel@tonic-gate  *
80Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
90Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
100Sstevel@tonic-gate  * See the License for the specific language governing permissions
110Sstevel@tonic-gate  * and limitations under the License.
120Sstevel@tonic-gate  *
130Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
140Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
150Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
160Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
170Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
180Sstevel@tonic-gate  *
190Sstevel@tonic-gate  * CDDL HEADER END
200Sstevel@tonic-gate  */
21*6812Sraf 
220Sstevel@tonic-gate /*
23*6812Sraf  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
240Sstevel@tonic-gate  * Use is subject to license terms.
250Sstevel@tonic-gate  */
260Sstevel@tonic-gate 
270Sstevel@tonic-gate /*	Copyright (c) 1986 AT&T	*/
280Sstevel@tonic-gate /*	  All Rights Reserved  	*/
290Sstevel@tonic-gate 
30*6812Sraf #pragma ident	"%Z%%M%	%I%	%E% SMI"
310Sstevel@tonic-gate 
320Sstevel@tonic-gate /*
330Sstevel@tonic-gate  * Copy s2 to s1, truncating or null-padding to always copy n characters.
340Sstevel@tonic-gate  * Return s1.
350Sstevel@tonic-gate  */
360Sstevel@tonic-gate 
37*6812Sraf #pragma weak _wcsncpy = wcsncpy
38*6812Sraf #pragma weak _wsncpy = wsncpy
390Sstevel@tonic-gate 
400Sstevel@tonic-gate #include "lint.h"
410Sstevel@tonic-gate #include <stdlib.h>
420Sstevel@tonic-gate #include <wchar.h>
430Sstevel@tonic-gate 
440Sstevel@tonic-gate wchar_t *
45*6812Sraf wcsncpy(wchar_t *s1, const wchar_t *s2, size_t n)
460Sstevel@tonic-gate {
470Sstevel@tonic-gate 	wchar_t *os1 = s1;
480Sstevel@tonic-gate 
490Sstevel@tonic-gate 	n++;
500Sstevel@tonic-gate 	while ((--n > 0) && ((*s1++ = *s2++) != 0))
510Sstevel@tonic-gate 		;
520Sstevel@tonic-gate 	if (n > 0)
530Sstevel@tonic-gate 		while (--n > 0)
540Sstevel@tonic-gate 			*s1++ = 0;
550Sstevel@tonic-gate 	return (os1);
560Sstevel@tonic-gate }
570Sstevel@tonic-gate 
580Sstevel@tonic-gate wchar_t *
59*6812Sraf wsncpy(wchar_t *s1, const wchar_t *s2, size_t n)
600Sstevel@tonic-gate {
61*6812Sraf 	return (wcsncpy(s1, s2, n));
620Sstevel@tonic-gate }
63