sscanf.c revision 22993 
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 * 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#if defined(LIBC_SCCS) && !defined(lint)
38#if 0
39static char sccsid[] = "@(#)sscanf.c	8.1 (Berkeley) 6/4/93";
40#endif
41static const char rcsid[] =
42		"$Id$";
43#endif /* LIBC_SCCS and not lint */
44
45#include <stdio.h>
46#include <string.h>
47#if __STDC__
48#include <stdarg.h>
49#else
50#include <varargs.h>
51#endif
52#include "local.h"
53
54static int eofread __P((void *, char *, int));
55
56/* ARGSUSED */
57static int
58eofread(cookie, buf, len)
59	void *cookie;
60	char *buf;
61	int len;
62{
63
64	return (0);
65}
66
67#if __STDC__
68int
69sscanf(const char *str, char const *fmt, ...)
70#else
71int
72sscanf(str, fmt, va_alist)
73	char *str;
74	char *fmt;
75	va_dcl
76#endif
77{
78	int ret;
79	va_list ap;
80	FILE f;
81
82	f._file = -1;
83	f._flags = __SRD;
84	f._bf._base = f._p = (unsigned char *)str;
85	f._bf._size = f._r = strlen(str);
86	f._read = eofread;
87	f._ub._base = NULL;
88	f._lb._base = NULL;
89#if __STDC__
90	va_start(ap, fmt);
91#else
92	va_start(ap);
93#endif
94	ret = __svfscanf(&f, fmt, ap);
95	va_end(ap);
96	return (ret);
97}
98