xref: /onnv-gate/usr/src/lib/libc/port/i18n/wsncpy.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate /*	Copyright (c) 1986 AT&T	*/
30*0Sstevel@tonic-gate /*	  All Rights Reserved  	*/
31*0Sstevel@tonic-gate 
32*0Sstevel@tonic-gate 
33*0Sstevel@tonic-gate /*	This module is created for NLS on Sep.03.86		*/
34*0Sstevel@tonic-gate 
35*0Sstevel@tonic-gate /*
36*0Sstevel@tonic-gate  * Copy s2 to s1, truncating or null-padding to always copy n characters.
37*0Sstevel@tonic-gate  * Return s1.
38*0Sstevel@tonic-gate  */
39*0Sstevel@tonic-gate 
40*0Sstevel@tonic-gate #pragma weak wcsncpy = _wcsncpy
41*0Sstevel@tonic-gate #pragma weak wsncpy = _wsncpy
42*0Sstevel@tonic-gate 
43*0Sstevel@tonic-gate #include "lint.h"
44*0Sstevel@tonic-gate #include <stdlib.h>
45*0Sstevel@tonic-gate #include <wchar.h>
46*0Sstevel@tonic-gate 
47*0Sstevel@tonic-gate wchar_t *
48*0Sstevel@tonic-gate _wcsncpy(wchar_t *s1, const wchar_t *s2, size_t n)
49*0Sstevel@tonic-gate {
50*0Sstevel@tonic-gate 	wchar_t *os1 = s1;
51*0Sstevel@tonic-gate 
52*0Sstevel@tonic-gate 	n++;
53*0Sstevel@tonic-gate 	while ((--n > 0) && ((*s1++ = *s2++) != 0))
54*0Sstevel@tonic-gate 		;
55*0Sstevel@tonic-gate 	if (n > 0)
56*0Sstevel@tonic-gate 		while (--n > 0)
57*0Sstevel@tonic-gate 			*s1++ = 0;
58*0Sstevel@tonic-gate 	return (os1);
59*0Sstevel@tonic-gate }
60*0Sstevel@tonic-gate 
61*0Sstevel@tonic-gate wchar_t *
62*0Sstevel@tonic-gate _wsncpy(wchar_t *s1, const wchar_t *s2, size_t n)
63*0Sstevel@tonic-gate {
64*0Sstevel@tonic-gate 	return (_wcsncpy(s1, s2, n));
65*0Sstevel@tonic-gate }
66