fscanf.c revision 331722 
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 * Chris Torek.
7 *
8 * Copyright (c) 2011 The FreeBSD Foundation
9 * All rights reserved.
10 * Portions of this software were developed by David Chisnall
11 * under sponsorship from the FreeBSD Foundation.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 *    notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 *    notice, this list of conditions and the following disclaimer in the
20 *    documentation and/or other materials provided with the distribution.
21 * 3. Neither the name of the University nor the names of its contributors
22 *    may be used to endorse or promote products derived from this software
23 *    without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 */
37
38#if defined(LIBC_SCCS) && !defined(lint)
39static char sccsid[] = "@(#)fscanf.c	8.1 (Berkeley) 6/4/93";
40#endif /* LIBC_SCCS and not lint */
41#include <sys/cdefs.h>
42__FBSDID("$FreeBSD: stable/11/lib/libc/stdio/fscanf.c 331722 2018-03-29 02:50:57Z eadler $");
43
44#include "namespace.h"
45#include <stdio.h>
46#include <stdarg.h>
47#include "un-namespace.h"
48#include "libc_private.h"
49#include "local.h"
50#include "xlocale_private.h"
51
52int
53fscanf(FILE * __restrict fp, char const * __restrict fmt, ...)
54{
55	int ret;
56	va_list ap;
57
58	va_start(ap, fmt);
59	FLOCKFILE_CANCELSAFE(fp);
60	ret = __svfscanf(fp, __get_locale(), fmt, ap);
61	va_end(ap);
62	FUNLOCKFILE_CANCELSAFE();
63	return (ret);
64}
65int
66fscanf_l(FILE * __restrict fp, locale_t locale, char const * __restrict fmt, ...)
67{
68	int ret;
69	va_list ap;
70	FIX_LOCALE(locale);
71
72	va_start(ap, fmt);
73	FLOCKFILE_CANCELSAFE(fp);
74	ret = __svfscanf(fp, locale, fmt, ap);
75	va_end(ap);
76	FUNLOCKFILE_CANCELSAFE();
77	return (ret);
78}
79