1 /*-
2 * Copyright (c) 2002-2004 Tim J. Robbins.
3 * All rights reserved.
4 *
5 * Copyright (c) 2011 The FreeBSD Foundation
6 * All rights reserved.
7 * Portions of this software were developed by David Chisnall
8 * under sponsorship from the FreeBSD Foundation.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD: stable/10/lib/libc/stdio/fputwc.c 321074 2017-07-17 14:09:34Z kib $");
34
35 #include "namespace.h"
36 #include <errno.h>
37 #include <limits.h>
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <wchar.h>
41 #include "un-namespace.h"
42 #include "libc_private.h"
43 #include "local.h"
44 #include "mblocal.h"
45
46 /*
47 * Non-MT-safe version.
48 */
49 wint_t
__fputwc(wchar_t wc,FILE * fp,locale_t locale)50 __fputwc(wchar_t wc, FILE *fp, locale_t locale)
51 {
52 char buf[MB_LEN_MAX];
53 size_t i, len;
54 struct xlocale_ctype *l = XLOCALE_CTYPE(locale);
55
56 if ((len = l->__wcrtomb(buf, wc, &fp->_mbstate)) == (size_t)-1) {
57 fp->_flags |= __SERR;
58 return (WEOF);
59 }
60
61 for (i = 0; i < len; i++)
62 if (__sputc((unsigned char)buf[i], fp) == EOF)
63 return (WEOF);
64
65 return ((wint_t)wc);
66 }
67
68 /*
69 * MT-safe version.
70 */
71 wint_t
fputwc_l(wchar_t wc,FILE * fp,locale_t locale)72 fputwc_l(wchar_t wc, FILE *fp, locale_t locale)
73 {
74 wint_t r;
75 FIX_LOCALE(locale);
76
77 FLOCKFILE_CANCELSAFE(fp);
78 ORIENT(fp, 1);
79 r = __fputwc(wc, fp, locale);
80 FUNLOCKFILE_CANCELSAFE();
81
82 return (r);
83 }
84 wint_t
fputwc(wchar_t wc,FILE * fp)85 fputwc(wchar_t wc, FILE *fp)
86 {
87 return fputwc_l(wc, fp, __get_locale());
88 }
89