xref: /openbsd-src/lib/libc/stdio/sscanf.c (revision 9b9d2a55a62c8e82206c25f94fcc7f4e2765250e)
1*9b9d2a55Sguenther /*	$OpenBSD: sscanf.c,v 1.15 2015/08/31 02:53:57 guenther Exp $ */
2df930be7Sderaadt /*-
3df930be7Sderaadt  * Copyright (c) 1990, 1993
4df930be7Sderaadt  *	The Regents of the University of California.  All rights reserved.
5df930be7Sderaadt  *
6df930be7Sderaadt  * This code is derived from software contributed to Berkeley by
7df930be7Sderaadt  * Chris Torek.
8df930be7Sderaadt  *
9df930be7Sderaadt  * Redistribution and use in source and binary forms, with or without
10df930be7Sderaadt  * modification, are permitted provided that the following conditions
11df930be7Sderaadt  * are met:
12df930be7Sderaadt  * 1. Redistributions of source code must retain the above copyright
13df930be7Sderaadt  *    notice, this list of conditions and the following disclaimer.
14df930be7Sderaadt  * 2. Redistributions in binary form must reproduce the above copyright
15df930be7Sderaadt  *    notice, this list of conditions and the following disclaimer in the
16df930be7Sderaadt  *    documentation and/or other materials provided with the distribution.
176580fee3Smillert  * 3. Neither the name of the University nor the names of its contributors
18df930be7Sderaadt  *    may be used to endorse or promote products derived from this software
19df930be7Sderaadt  *    without specific prior written permission.
20df930be7Sderaadt  *
21df930be7Sderaadt  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22df930be7Sderaadt  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23df930be7Sderaadt  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24df930be7Sderaadt  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25df930be7Sderaadt  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26df930be7Sderaadt  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27df930be7Sderaadt  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28df930be7Sderaadt  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29df930be7Sderaadt  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30df930be7Sderaadt  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31df930be7Sderaadt  * SUCH DAMAGE.
32df930be7Sderaadt  */
33df930be7Sderaadt 
34df930be7Sderaadt #include <stdio.h>
35df930be7Sderaadt #include <string.h>
36df930be7Sderaadt #include <stdarg.h>
37df930be7Sderaadt #include "local.h"
38df930be7Sderaadt 
39df930be7Sderaadt static int
eofread(void * cookie,char * buf,int len)404e503363Sotto eofread(void *cookie, char *buf, int len)
41df930be7Sderaadt {
42df930be7Sderaadt 
43df930be7Sderaadt 	return (0);
44df930be7Sderaadt }
45df930be7Sderaadt 
4620675415Sderaadt int
sscanf(const char * str,const char * fmt,...)479e895940Spat sscanf(const char *str, const char *fmt, ...)
48df930be7Sderaadt {
49df930be7Sderaadt 	int ret;
50df930be7Sderaadt 	va_list ap;
51df930be7Sderaadt 	FILE f;
52685aea3cSespie 	struct __sfileext fext;
53df930be7Sderaadt 
54685aea3cSespie 	_FILEEXT_SETUP(&f, &fext);
55df930be7Sderaadt 	f._flags = __SRD;
56df930be7Sderaadt 	f._bf._base = f._p = (unsigned char *)str;
57df930be7Sderaadt 	f._bf._size = f._r = strlen(str);
58df930be7Sderaadt 	f._read = eofread;
59df930be7Sderaadt 	f._lb._base = NULL;
60df930be7Sderaadt 	va_start(ap, fmt);
61e09d0be9Sguenther 	ret = __svfscanf(&f, fmt, ap);
62df930be7Sderaadt 	va_end(ap);
63df930be7Sderaadt 	return (ret);
64df930be7Sderaadt }
65*9b9d2a55Sguenther DEF_STRONG(sscanf);
66