1f4ff8506a
vfwscanf(), vswscanf(), vwscanf(). As the name suggests, these are wide- character versions of the scanf() family of functions.
99 lines
3.2 KiB
C
99 lines
3.2 KiB
C
/*-
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Donn Seeley at UUNET Technologies, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if 0
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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "@(#)vsscanf.c 8.1 (Berkeley) 6/4/93";
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#endif /* LIBC_SCCS and not lint */
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__FBSDID("FreeBSD: src/lib/libc/stdio/vsscanf.c,v 1.11 2002/08/21 16:19:57 mike Exp ");
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#endif
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__FBSDID("$FreeBSD$");
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#include <limits.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wchar.h>
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#include "local.h"
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static int eofread(void *, char *, int);
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static int
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eofread(void *cookie, char *buf, int len)
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{
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return (0);
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}
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int
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vswscanf(const wchar_t * __restrict str, const wchar_t * __restrict fmt,
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va_list ap)
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{
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FILE f;
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mbstate_t mbs;
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struct __sFILEX ext;
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char *mbstr;
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size_t mlen;
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int r;
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/*
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* XXX Convert the wide character string to multibyte, which
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* __vfwscanf() will convert back to wide characters.
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*/
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if ((mbstr = malloc(wcslen(str) * MB_CUR_MAX + 1)) == NULL)
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return (EOF);
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memset(&mbs, 0, sizeof(mbs));
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if ((mlen = wcsrtombs(mbstr, &str, SIZE_T_MAX, &mbs)) == (size_t)-1) {
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free(mbstr);
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return (EOF);
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}
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f._file = -1;
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f._flags = __SRD;
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f._bf._base = f._p = (unsigned char *)mbstr;
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f._bf._size = f._r = mlen;
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f._read = eofread;
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f._ub._base = NULL;
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f._lb._base = NULL;
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f._extra = &ext;
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INITEXTRA(&f);
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r = __vfwscanf(&f, fmt, ap);
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free(mbstr);
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return (r);
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}
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