1 /* $NetBSD: vsscanf.c,v 1.21 2013/05/17 12:55:57 joerg 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. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 #if defined(LIBC_SCCS) && !defined(lint) 37 #if 0 38 static char sccsid[] = "@(#)vsscanf.c 8.1 (Berkeley) 6/4/93"; 39 #else 40 __RCSID("$NetBSD: vsscanf.c,v 1.21 2013/05/17 12:55:57 joerg Exp $"); 41 #endif 42 #endif /* LIBC_SCCS and not lint */ 43 44 #include "namespace.h" 45 46 #include <assert.h> 47 #include <errno.h> 48 #include <locale.h> 49 #include <stdio.h> 50 #include <string.h> 51 #include "reentrant.h" 52 #include "setlocale_local.h" 53 #include "local.h" 54 55 __weak_alias(vsscanf_l, _vsscanf_l) 56 57 /* ARGSUSED */ 58 static ssize_t 59 eofread(void *cookie, void *buf, size_t len) 60 { 61 return 0; 62 } 63 64 int 65 vsscanf_l(const char *str, locale_t loc, const char *fmt, va_list ap) 66 { 67 FILE f; 68 struct __sfileext fext; 69 size_t len; 70 71 _DIAGASSERT(str != NULL); 72 _DIAGASSERT(fmt != NULL); 73 74 _FILEEXT_SETUP(&f, &fext); 75 f._flags = __SRD; 76 f._bf._base = f._p = __UNCONST(str); 77 len = strlen(str); 78 _DIAGASSERT(__type_fit(int, len)); 79 f._bf._size = f._r = (int)len; 80 f._read = eofread; 81 _UB(&f)._base = NULL; 82 return __svfscanf_unlocked_l(&f, loc, fmt, ap); 83 } 84 85 int 86 vsscanf(const char *str, const char *fmt, va_list ap) 87 { 88 return vsscanf_l(str, _current_locale(), fmt, ap); 89 } 90