sscanf.c (2780B)
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 static char rcsid[] = "$OpenBSD: sscanf.c,v 1.3 1997/07/25 20:30:12 mickey Exp $"; 39 #endif /* LIBC_SCCS and not lint */ 40 41 #include <stdio.h> 42 #include <string.h> 43 #ifdef __STDC__ 44 #include <stdarg.h> 45 #else 46 #include <varargs.h> 47 #endif 48 #include "local.h" 49 50 /* ARGSUSED */ 51 static int 52 eofread(cookie, buf, len) 53 void *cookie; 54 char *buf; 55 int len; 56 { 57 58 return (0); 59 } 60 61 int 62 #ifdef __STDC__ 63 sscanf(const char *str, char const *fmt, ...) 64 #else 65 sscanf(str, fmt, va_alist) 66 const char *str; 67 char *fmt; 68 va_dcl 69 #endif 70 { 71 int ret; 72 va_list ap; 73 FILE f; 74 75 f._flags = __SRD; 76 f._bf._base = f._p = (unsigned char *)str; 77 f._bf._size = f._r = strlen(str); 78 f._read = eofread; 79 f._ub._base = NULL; 80 f._lb._base = NULL; 81 #ifdef __STDC__ 82 va_start(ap, fmt); 83 #else 84 va_start(ap); 85 #endif 86 ret = __svfscanf(&f, fmt, ap); 87 va_end(ap); 88 return (ret); 89 }