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. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)sscanf.c 8.1 (Berkeley) 6/4/93 33 * $FreeBSD: src/lib/libc/stdio/sscanf.c,v 1.13 2008/04/17 22:17:54 jhb Exp $ 34 * $DragonFly: src/lib/libc/stdio/sscanf.c,v 1.9 2006/03/02 18:05:30 joerg Exp $ 35 */ 36 37 #include <stdio.h> 38 #include <string.h> 39 #include <stdarg.h> 40 #include "local.h" 41 #include "priv_stdio.h" 42 43 static int eofread(void *, char *, int); 44 45 /* ARGSUSED */ 46 static int 47 eofread(void *cookie __unused, char *buf __unused, int len __unused) 48 { 49 50 return (0); 51 } 52 53 int 54 sscanf(const char * __restrict str, const char * __restrict fmt, ...) 55 { 56 int ret; 57 va_list ap; 58 FILE f; 59 60 f.pub._fileno = -1; 61 f.pub._flags = __SRD; 62 f._bf._base = f.pub._p = (unsigned char *)str; 63 f._bf._size = f.pub._r = strlen(str); 64 f._read = eofread; 65 f._ub._base = NULL; 66 f._lb._base = NULL; 67 memset(WCIO_GET(&f), 0, sizeof(struct wchar_io_data)); 68 va_start(ap, fmt); 69 ret = __svfscanf(&f, fmt, ap); 70 va_end(ap); 71 return (ret); 72 } 73