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 * Copyright (c) 2011 The FreeBSD Foundation
9 * All rights reserved.
10 * Portions of this software were developed by David Chisnall
11 * under sponsorship from the FreeBSD Foundation.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 *
37 * @(#)vsprintf.c 8.1 (Berkeley) 6/4/93
38 * $FreeBSD: head/lib/libc/stdio/vsprintf.c 249808 2013-04-23 13:33:13Z emaste $
39 */
40
41
42 #include <stdio.h>
43 #include <limits.h>
44 #include <pthread.h> /* for FAKE_FILE PTHREAD_MUTEX_INITIALIZER */
45 #include "local.h"
46 #include "xlocale_private.h"
47
48 int
vsprintf_l(char * __restrict str,locale_t locale,const char * __restrict fmt,__va_list ap)49 vsprintf_l(char * __restrict str, locale_t locale,
50 const char * __restrict fmt, __va_list ap)
51 {
52 int ret;
53 FILE f = FAKE_FILE;
54 FIX_LOCALE(locale);
55
56 f.pub._flags = __SWR | __SSTR;
57 f._bf._base = f.pub._p = (unsigned char *)str;
58 f._bf._size = f.pub._w = INT_MAX;
59 ret = __vfprintf(&f, locale, fmt, ap);
60 *f.pub._p = 0;
61 return (ret);
62 }
63 int
vsprintf(char * __restrict str,const char * __restrict fmt,__va_list ap)64 vsprintf(char * __restrict str, const char * __restrict fmt, __va_list ap)
65 {
66 return vsprintf_l(str, __get_locale(), fmt, ap);
67 }
68