sscanf.c revision 92905
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 "$FreeBSD: head/lib/libc/stdio/sscanf.c 92905 2002-03-21 22:49:10Z obrien $"; 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(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 struct __sFILEX extra; 81 FILE f; 82 83 f._file = -1; 84 f._flags = __SRD; 85 f._bf._base = f._p = (unsigned char *)str; 86 f._bf._size = f._r = strlen(str); 87 f._read = eofread; 88 f._ub._base = NULL; 89 f._lb._base = NULL; 90 f._extra = &extra; 91 INITEXTRA(&f); 92#if __STDC__ 93 va_start(ap, fmt); 94#else 95 va_start(ap); 96#endif 97 ret = __svfscanf(&f, fmt, ap); 98 va_end(ap); 99 return (ret); 100} 101