stdio/FreeBSD/vsprintf.c

   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  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  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  * 4. Neither the name of the University nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 #if defined(LIBC_SCCS) && !defined(lint)
  34 static char sccsid[] = "@(#)vsprintf.c  8.1 (Berkeley) 6/4/93";
  35 #endif /* LIBC_SCCS and not lint */
  36 #include <sys/cdefs.h>
  37 __FBSDID("$FreeBSD: src/lib/libc/stdio/vsprintf.c,v 1.16 2008/04/17 22:17:54 jhb Exp $");
  38
  39 #include "xlocale_private.h"
  40
  41 #include <stdio.h>
  42 #include <limits.h>
  43 #include "local.h"
  44
  45 int
  46 vsprintf_l(char * __restrict str, locale_t loc, const char * __restrict fmt, __va_list ap)
  47 {
  48         int ret;
  49         FILE f;
  50         struct __sFILEX ext;
  51         f._extra = &ext;
  52         INITEXTRA(&f);
  53
  54         f._file = -1;
  55         f._flags = __SWR | __SSTR;
  56         f._bf._base = f._p = (unsigned char *)str;
  57         f._bf._size = f._w = INT_MAX;
  58         f._orientation = 0;
  59         memset(&f._mbstate, 0, sizeof(mbstate_t));
  60         ret = __v2printf(XPRINTF_PLAIN, NULL, &f, loc, fmt, ap);
  61         *f._p = 0;
  62         return (ret);
  63 }
  64
  65 int
  66 vsprintf(char * __restrict str, const char * __restrict fmt, __va_list ap)
  67 {
  68         return vsprintf_l(str, __current_locale(), fmt, ap);
  69 }