1/*
2 * Copyright 2010 Nexenta Systems, Inc.  All rights reserved.
3 * Use is subject to license terms.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26#include "lint.h"
27#include "mse_int.h"
28#include "file64.h"
29#include "mtlib.h"
30#include <errno.h>
31#include <limits.h>
32#include <stdio.h>
33#include <stdlib.h>
34#include <wchar.h>
35#include "mblocal.h"
36#include "stdiom.h"
37
38static int
39_fputws_impl(const wchar_t *_RESTRICT_KYWD ws, FILE *_RESTRICT_KYWD fp,
40    int orient)
41{
42	int nchars;
43	int nwritten;
44	char buf[BUFSIZ];
45	rmutex_t *lk;
46
47	/*
48	 * The FreeBSD implementation here was a bit more complex, because
49	 * it repeated much of what is in fputs.  For simplicity's sake, we
50	 * juse wctomb to convert the wide string to a mbs, and then use
51	 * fputs to print the mbs.
52	 */
53
54	nchars = wcslen(ws);
55	nwritten = 0;
56
57	FLOCKFILE(lk, fp);
58	if (orient && GET_NO_MODE(fp))
59		_setorientation(fp, _WC_MODE);
60
61	while (nchars > 0) {
62		int nbytes = 0;
63		char *ptr = buf;
64		while ((nbytes < (BUFSIZ - (MB_LEN_MAX * 2))) && nchars) {
65			int n;
66			if ((n = wctomb(ptr, *ws)) < 0) {
67				FUNLOCKFILE(lk);
68				fp->_flag |= _IOERR;
69				errno = EILSEQ;
70				return (EOF);
71			}
72			ws++;
73			ptr += n;
74			nbytes += n;
75			nchars--;
76		}
77		*ptr = '\0';
78		if (fputs(buf, fp) < nbytes) {
79			FUNLOCKFILE(lk);
80			return (EOF);
81		}
82		nwritten += nbytes;
83	}
84	FUNLOCKFILE(lk);
85	return (nwritten);
86}
87
88int
89fputws(const wchar_t *_RESTRICT_KYWD ws, FILE *_RESTRICT_KYWD fp)
90{
91	return (_fputws_impl(ws, fp, 0));
92}
93
94int
95__fputws_xpg5(const wchar_t *ws, FILE *fp)
96{
97	return (_fputws_impl(ws, fp, 1));
98}
99