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
__weak_alias(sprintf_l,_sprintf_l)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
vsprintf(char * str,const char * fmt,va_list ap)84 vsprintf(char *str, const char *fmt, va_list ap)
85 {
86 return vsprintf_l(str, _current_locale(), fmt, ap);
87 }
88
89 int
sprintf_l(char * str,locale_t loc,char const * fmt,...)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
sprintf(char * str,char const * fmt,...)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