xref: /netbsd-src/lib/libc/stdio/vsscanf.c (revision 481fca6e59249d8ffcf24fef7cfbe7b131bfb080)
1 /*	$NetBSD: vsscanf.c,v 1.10 1999/09/20 04:39:35 lukem Exp $	*/
2 
3 /*-
4  * Copyright (c) 1990, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * This code is derived from software contributed to Berkeley by
8  * Donn Seeley at UUNET Technologies, Inc.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *	This product includes software developed by the University of
21  *	California, Berkeley and its contributors.
22  * 4. Neither the name of the University nor the names of its contributors
23  *    may be used to endorse or promote products derived from this software
24  *    without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36  * SUCH DAMAGE.
37  */
38 
39 #include <sys/cdefs.h>
40 #if defined(LIBC_SCCS) && !defined(lint)
41 #if 0
42 static char sccsid[] = "@(#)vsscanf.c	8.1 (Berkeley) 6/4/93";
43 #else
44 __RCSID("$NetBSD: vsscanf.c,v 1.10 1999/09/20 04:39:35 lukem Exp $");
45 #endif
46 #endif /* LIBC_SCCS and not lint */
47 
48 #include <assert.h>
49 #include <errno.h>
50 #include <stdio.h>
51 #include <string.h>
52 
53 static int eofread __P((void *, char *, int));
54 
55 /* ARGSUSED */
56 static int
57 eofread(cookie, buf, len)
58 	void *cookie;
59 	char *buf;
60 	int len;
61 {
62 	return (0);
63 }
64 
65 int
66 vsscanf(str, fmt, ap)
67 	const char *str;
68 	const char *fmt;
69 	_BSD_VA_LIST_ ap;
70 {
71 	FILE f;
72 
73 	_DIAGASSERT(str != NULL);
74 	_DIAGASSERT(fmt != NULL);
75 
76 	f._flags = __SRD;
77 	/* LINTED we don't touch str */
78 	f._bf._base = f._p = (unsigned char *)str;
79 	f._bf._size = f._r = strlen(str);
80 	f._read = eofread;
81 	f._ub._base = NULL;
82 	f._lb._base = NULL;
83 	return (__svfscanf(&f, fmt, ap));
84 }
85