xref: /illumos-gate/usr/src/lib/libc/port/i18n/putws.c (revision f3041bfa)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1986 AT&T	*/
28 /*	  All Rights Reserved  	*/
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 /*
33  * Putws transforms process codes in wchar_t array pointed to by
34  * "ptr" into a byte string, and writes the string followed
35  * by a new-line character to stdout.
36  */
37 
38 #include "lint.h"
39 #include "file64.h"
40 #include <stdio.h>
41 #include <stdlib.h>
42 #include <wchar.h>
43 #include <limits.h>
44 #include "stdiom.h"
45 #include "libc.h"
46 
47 int
48 putws(const wchar_t *ptr)
49 {
50 	wchar_t *ptr0 = (wchar_t *)ptr;
51 	ptrdiff_t diff;
52 	rmutex_t	*lk;
53 
54 	FLOCKFILE(lk, stdout);
55 	for (; *ptr; ptr++) {		/* putwc till NULL */
56 		if (fputwc(*ptr, stdout) == EOF) {
57 			FUNLOCKFILE(lk);
58 			return (EOF);
59 		}
60 	}
61 	(void) fputwc('\n', stdout); /* append a new line */
62 	FUNLOCKFILE(lk);
63 
64 	if (fflush(stdout))  /* flush line */
65 		return (EOF);
66 	diff = ptr - ptr0;
67 	if (diff <= INT_MAX)
68 		return ((int)diff);
69 	else
70 		return (EOF);
71 }
72