1 /* $OpenBSD: fputwc.c,v 1.1 2005/06/17 20:40:32 espie Exp $ */
2 /* $NetBSD: fputwc.c,v 1.3 2003/03/07 07:11:37 tshiozak Exp $ */
3
4 /*-
5 * Copyright (c)2001 Citrus Project,
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $Citrus$
30 */
31
32 #include <errno.h>
33 #include <limits.h>
34 #include <stdio.h>
35 #include <wchar.h>
36 #include "local.h"
37 #include "fvwrite.h"
38
39 wint_t __fputwc_unlock(wchar_t, FILE *);
40
41 wint_t
__fputwc_unlock(wchar_t wc,FILE * fp)42 __fputwc_unlock(wchar_t wc, FILE *fp)
43 {
44 struct wchar_io_data *wcio;
45 mbstate_t *st;
46 size_t size;
47 char buf[MB_LEN_MAX];
48 struct __suio uio;
49 struct __siov iov;
50
51 /* LINTED we don't play with buf */
52 iov.iov_base = (void *)buf;
53 uio.uio_iov = &iov;
54 uio.uio_iovcnt = 1;
55
56 _SET_ORIENTATION(fp, 1);
57 wcio = WCIO_GET(fp);
58 if (wcio == 0) {
59 errno = ENOMEM;
60 return WEOF;
61 }
62
63 wcio->wcio_ungetwc_inbuf = 0;
64 st = &wcio->wcio_mbstate_out;
65
66 size = wcrtomb(buf, wc, st);
67 if (size == (size_t)-1) {
68 errno = EILSEQ;
69 return WEOF;
70 }
71
72 uio.uio_resid = iov.iov_len = size;
73 if (__sfvwrite(fp, &uio)) {
74 return WEOF;
75 }
76
77 return (wint_t)wc;
78 }
79
80 wint_t
fputwc(wchar_t wc,FILE * fp)81 fputwc(wchar_t wc, FILE *fp)
82 {
83 wint_t r;
84
85 flockfile(fp);
86 r = __fputwc_unlock(wc, fp);
87 funlockfile(fp);
88
89 return (r);
90 }
91