1 /*-
2 * Copyright (c) 1990, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Copyright (c) 2011 The FreeBSD Foundation
6 * All rights reserved.
7 * Portions of this software were developed by David Chisnall
8 * under sponsorship from the FreeBSD Foundation.
9 *
10 * This code is derived from software contributed to Berkeley by
11 * Donn Seeley at UUNET Technologies, Inc.
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 * @(#)vsscanf.c 8.1 (Berkeley) 6/4/93
38 * $FreeBSD: head/lib/libc/stdio/vsscanf.c 249808 2013-04-23 13:33:13Z emaste $
39 */
40
41 #include <stdio.h>
42 #include <string.h>
43 #include <pthread.h> /* for FAKE_FILE PTHREAD_MUTEX_INITIALIZER */
44 #include "local.h"
45 #include "xlocale_private.h"
46
47 static int
48 eofread(void *, char *, int);
49
50 /* ARGSUSED */
51 static int
eofread(void * cookie __unused,char * buf __unused,int len __unused)52 eofread(void *cookie __unused, char *buf __unused, int len __unused)
53 {
54
55 return (0);
56 }
57
58 int
vsscanf_l(const char * __restrict str,locale_t locale,const char * __restrict fmt,__va_list ap)59 vsscanf_l(const char * __restrict str, locale_t locale,
60 const char * __restrict fmt, __va_list ap)
61 {
62 FILE f = FAKE_FILE;
63 FIX_LOCALE(locale);
64
65 f.pub._flags = __SRD;
66 f._bf._base = f.pub._p = (unsigned char *)str;
67 f._bf._size = f.pub._r = strlen(str);
68 f._read = eofread;
69 return (__svfscanf(&f, locale, fmt, ap));
70 }
71 int
vsscanf(const char * __restrict str,const char * __restrict fmt,__va_list ap)72 vsscanf(const char * __restrict str, const char * __restrict fmt,
73 __va_list ap)
74 {
75 return vsscanf_l(str, __get_locale(), fmt, ap);
76 }
77