stdio/FreeBSD/vdprintf.c

   1 /*-
   2  * Copyright (c) 2009 David Schultz <das@FreeBSD.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 #include <sys/cdefs.h>
  28 __FBSDID("$FreeBSD: src/lib/libc/stdio/vdprintf.c,v 1.1 2009/03/04 03:38:51 das Exp $");
  29
  30 #include "xlocale_private.h"
  31
  32 #include "namespace.h"
  33 #include <errno.h>
  34 #include <limits.h>
  35 #include <stdarg.h>
  36 #include <stdio.h>
  37 #include "un-namespace.h"
  38
  39 #include "local.h"
  40
  41 __private_extern__ int
  42 _vdprintf(printf_comp_t __restrict pc, printf_domain_t __restrict domain, int fd, locale_t __restrict loc, const char * __restrict fmt, va_list ap)
  43 {
  44         FILE f;
  45         unsigned char buf[BUFSIZ];
  46         int ret;
  47         struct __sFILEX ext;
  48         f._extra = &ext;
  49         INITEXTRA(&f);
  50
  51         if (fd > SHRT_MAX) {
  52                 errno = EMFILE;
  53                 return (EOF);
  54         }
  55
  56         f._p = buf;
  57         f._w = sizeof(buf);
  58         f._flags = __SWR;
  59         f._file = fd;
  60         f._cookie = &f;
  61         f._write = __swrite;
  62         f._bf._base = buf;
  63         f._bf._size = sizeof(buf);
  64         f._orientation = 0;
  65         bzero(&f._mbstate, sizeof(f._mbstate));
  66
  67         if ((ret = __v2printf(pc, domain, &f, loc, fmt, ap)) < 0)
  68                 return (ret);
  69
  70         return (__fflush(&f) ? EOF : ret);
  71 }
  72
  73 int
  74 vdprintf_l(int fd, locale_t __restrict loc, const char * __restrict fmt, va_list ap)
  75 {
  76         return _vdprintf(XPRINTF_PLAIN, NULL, fd, loc, fmt, ap);
  77 }
  78
  79 int
  80 vdprintf(int fd, const char * __restrict fmt, va_list ap) {
  81         return _vdprintf(XPRINTF_PLAIN, NULL, fd, __current_locale(), fmt, ap);
  82 }