xref: /illumos-gate/usr/src/lib/libc/port/i18n/putws.c (revision 0250c53ad267726f2438e3c6556199a0bbf588a2)
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 /*
31  * Putws transforms process codes in wchar_t array pointed to by
32  * "ptr" into a byte string, and writes the string followed
33  * by a new-line character to stdout.
34  */
35 
36 #include "lint.h"
37 #include "file64.h"
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <wchar.h>
41 #include <limits.h>
42 #include "stdiom.h"
43 #include "libc.h"
44 
45 int
46 putws(const wchar_t *ptr)
47 {
48 	wchar_t *ptr0 = (wchar_t *)ptr;
49 	ptrdiff_t diff;
50 	rmutex_t	*lk;
51 
52 	FLOCKFILE(lk, stdout);
53 	for (; *ptr; ptr++) {		/* putwc till NULL */
54 		if (fputwc(*ptr, stdout) == EOF) {
55 			FUNLOCKFILE(lk);
56 			return (EOF);
57 		}
58 	}
59 	(void) fputwc('\n', stdout); /* append a new line */
60 	FUNLOCKFILE(lk);
61 
62 	if (fflush(stdout))  /* flush line */
63 		return (EOF);
64 	diff = ptr - ptr0;
65 	if (diff <= INT_MAX)
66 		return ((int)diff);
67 	else
68 		return (EOF);
69 }
70