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Commit	Line	Data
	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	* 3. All advertising materials mentioning features or use of this software
	17	* must display the following acknowledgement:
	18	* This product includes software developed by the University of
	19	* California, Berkeley and its contributors.
	20	* 4. Neither the name of the University nor the names of its contributors
	21	* may be used to endorse or promote products derived from this software
	22	* without specific prior written permission.
	23	*
	24	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	25	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	26	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	27	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	28	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	29	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	30	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	31	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	32	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	33	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	34	* SUCH DAMAGE.
	35	*/
	36
	37	#include <sys/cdefs.h>
	38	#if 0
	39	#if defined(LIBC_SCCS) && !defined(lint)
	40	static char sccsid[] = "@(#)vsscanf.c 8.1 (Berkeley) 6/4/93";
	41	#endif /* LIBC_SCCS and not lint */
	42	__FBSDID("FreeBSD: src/lib/libc/stdio/vsscanf.c,v 1.11 2002/08/21 16:19:57 mike Exp ");
	43	#endif
	44	__FBSDID("$FreeBSD: src/lib/libc/stdio/vswscanf.c,v 1.1 2002/09/23 12:40:06 tjr Exp $");
	45
	46	#include <limits.h>
	47	#include <stdarg.h>
	48	#include <stdio.h>
	49	#include <stdlib.h>
	50	#include <string.h>
	51	#include <wchar.h>
	52	#include "local.h"
	53
	54	static int eofread(void , char , int);
	55
	56	static int
	57	eofread(void cookie, char buf, int len)
	58	{
	59
	60	return (0);
	61	}
	62
	63	int
	64	vswscanf(const wchar_t * __restrict str, const wchar_t * __restrict fmt,
	65	va_list ap)
	66	{
	67	FILE f;
	68	mbstate_t mbs;
	69	struct __sFILEX ext;
	70	char *mbstr;
	71	size_t mlen;
	72	int r;
	73
	74	/*
	75	* XXX Convert the wide character string to multibyte, which
	76	* __vfwscanf() will convert back to wide characters.
	77	*/
	78	if ((mbstr = malloc(wcslen(str) * MB_CUR_MAX + 1)) == NULL)
	79	return (EOF);
	80	memset(&mbs, 0, sizeof(mbs));
	81	if ((mlen = wcsrtombs(mbstr, &str, SIZE_T_MAX, &mbs)) == (size_t)-1) {
	82	free(mbstr);
	83	return (EOF);
	84	}
	85	f._file = -1;
	86	f._flags = __SRD;
	87	f._bf._base = f._p = (unsigned char *)mbstr;
	88	f._bf._size = f._r = mlen;
	89	f._read = eofread;
	90	f._ub._base = NULL;
	91	f._lb._base = NULL;
	92	f._extra = &ext;
	93	INITEXTRA(&f);
	94	r = __vfwscanf(&f, fmt, ap);
	95	free(mbstr);
	96
	97	return (r);
	98	}