1 /* $NetBSD: vsprintf.c,v 1.19 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 * Chris Torek. 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[] = "@(#)vsprintf.c 8.1 (Berkeley) 6/4/93"; 39 #else 40 __RCSID("$NetBSD: vsprintf.c,v 1.19 2013/05/17 12:55:57 joerg Exp $"); 41 #endif 42 #endif /* LIBC_SCCS and not lint */ 43 44 #include "namespace.h" 45 #include <assert.h> 46 #include <errno.h> 47 #include <limits.h> 48 #include <locale.h> 49 #include <stdio.h> 50 51 #include "reentrant.h" 52 #include "setlocale_local.h" 53 #include "local.h" 54 55 #ifdef _FORTIFY_SOURCE 56 #undef vsprintf 57 #undef sprintf 58 #endif 59 60 __weak_alias(sprintf_l, _sprintf_l) 61 __weak_alias(vsprintf_l, _vsprintf_l) 62 63 int 64 vsprintf_l(char *str, locale_t loc, const char *fmt, va_list ap) 65 { 66 int ret; 67 FILE f; 68 struct __sfileext fext; 69 70 _DIAGASSERT(str != NULL); 71 _DIAGASSERT(fmt != NULL); 72 73 _FILEEXT_SETUP(&f, &fext); 74 f._file = -1; 75 f._flags = __SWR | __SSTR; 76 f._bf._base = f._p = (unsigned char *)str; 77 f._bf._size = f._w = INT_MAX; 78 ret = __vfprintf_unlocked_l(&f, loc, fmt, ap); 79 *f._p = 0; 80 return ret; 81 } 82 83 int 84 vsprintf(char *str, const char *fmt, va_list ap) 85 { 86 return vsprintf_l(str, _current_locale(), fmt, ap); 87 } 88 89 int 90 sprintf_l(char *str, locale_t loc, char const *fmt, ...) 91 { 92 int ret; 93 va_list ap; 94 95 va_start(ap, fmt); 96 ret = vsprintf_l(str, loc, fmt, ap); 97 va_end(ap); 98 99 return ret; 100 } 101 102 int 103 sprintf(char *str, char const *fmt, ...) 104 { 105 int ret; 106 va_list ap; 107 108 va_start(ap, fmt); 109 ret = vsprintf(str, fmt, ap); 110 va_end(ap); 111 112 return ret; 113 } 114