1 /* $NetBSD: vswprintf.c,v 1.1 2005/05/14 23:51:02 christos Exp $ */
2 /* $DragonFly: src/lib/libc/stdio/vswprintf.c,v 1.1 2005/07/25 00:37:41 joerg Exp $ */
5 * Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
20 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
21 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
22 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
25 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
27 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
28 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 #include "priv_stdio.h"
42 vswprintf(wchar_t * __restrict s, size_t n, const wchar_t * __restrict fmt,
45 static const mbstate_t initial;
58 f.pub._flags = __SWR | __SSTR | __SALC;
59 f._bf._base = f.pub._p = (unsigned char *)malloc(128);
60 if (f._bf._base == NULL) {
64 f._bf._size = f.pub._w = 127; /* Leave room for the NUL */
66 f.fl_mutex = PTHREAD_MUTEX_INITIALIZER;
69 memset(&f._wcio, 0, sizeof(f._wcio));
70 ret = __vfwprintf_unlocked(&f, fmt, ap);
78 mbp = (char *)f._bf._base;
80 * XXX Undo the conversion from wide characters to multibyte that
81 * fputwc() did in __vfwprintf().
84 nwc = mbsrtowcs(s, (const char **)&mbp, n, &mbs);
86 if (nwc == (size_t)-1) {