1/*-
2 * Copyright (c) 1990, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Donn Seeley at UUNET Technologies, Inc.
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 * 4. Neither the name of the University nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#include <sys/cdefs.h>
34#if 0
35#if defined(LIBC_SCCS) && !defined(lint)
36static char sccsid[] = "@(#)vsscanf.c	8.1 (Berkeley) 6/4/93";
37#endif /* LIBC_SCCS and not lint */
38__FBSDID("FreeBSD: src/lib/libc/stdio/vsscanf.c,v 1.11 2002/08/21 16:19:57 mike Exp ");
39#endif
40__FBSDID("$FreeBSD: src/lib/libc/stdio/vswscanf.c,v 1.6 2009/01/15 18:53:52 rdivacky Exp $");
41
42#include "xlocale_private.h"
43
44#include <limits.h>
45#include <stdarg.h>
46#include <stdio.h>
47#include <stdlib.h>
48#include <string.h>
49#include <wchar.h>
50#include "local.h"
51
52static int	eofread(void *, char *, int);
53
54static int
55eofread(void *cookie, char *buf, int len)
56{
57
58	return (0);
59}
60
61int
62vswscanf_l(const wchar_t * __restrict str, locale_t loc, const wchar_t * __restrict fmt,
63    va_list ap)
64{
65	static const mbstate_t initial;
66	mbstate_t mbs;
67	FILE f;
68	char *mbstr;
69	size_t mlen;
70	int r;
71	const wchar_t *strp;
72	struct __sFILEX ext;
73	f._extra = &ext;
74	INITEXTRA(&f);
75
76	NORMALIZE_LOCALE(loc);
77	/*
78	 * XXX Convert the wide character string to multibyte, which
79	 * __vfwscanf() will convert back to wide characters.
80	 */
81	if ((mbstr = malloc(wcslen(str) * MB_CUR_MAX_L(loc) + 1)) == NULL)
82		return (EOF);
83	mbs = initial;
84	strp = str;
85	if ((mlen = wcsrtombs_l(mbstr, &strp, SIZE_T_MAX, &mbs, loc)) == (size_t)-1) {
86		free(mbstr);
87		return (EOF);
88	}
89	f._file = -1;
90	f._flags = __SRD;
91	f._bf._base = f._p = (unsigned char *)mbstr;
92	f._bf._size = f._r = mlen;
93	f._read = eofread;
94	f._ub._base = NULL;
95	f._lb._base = NULL;
96	f._orientation = 0;
97	memset(&f._mbstate, 0, sizeof(mbstate_t));
98	r = __vfwscanf(&f, loc, fmt, ap);
99	free(mbstr);
100
101	return (r);
102}
103
104int
105vswscanf(const wchar_t * __restrict str, const wchar_t * __restrict fmt,
106    va_list ap)
107{
108	return vswscanf_l(str, __current_locale(), fmt, ap);
109}
110
111