stdio/FreeBSD/fputws.c

   1 /*-
   2  * Copyright (c) 2002-2004 Tim J. Robbins.
   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/fputws.c,v 1.8 2009/01/15 18:53:52 rdivacky Exp $");
  29
  30 #include "xlocale_private.h"
  31
  32 #include "namespace.h"
  33 #include <errno.h>
  34 #include <limits.h>
  35 #include <stdio.h>
  36 #include <wchar.h>
  37 #include "un-namespace.h"
  38 #include "fvwrite.h"
  39 #include "libc_private.h"
  40 #include "local.h"
  41 #include "mblocal.h"
  42
  43 int
  44 fputws_l(const wchar_t * __restrict ws, FILE * __restrict fp, locale_t loc)
  45 {
  46         size_t nbytes;
  47         char buf[BUFSIZ];
  48         struct __suio uio;
  49         struct __siov iov;
  50         const wchar_t *wsp = ws;
  51         size_t (*__wcsnrtombs)(char * __restrict, const wchar_t ** __restrict,
  52             size_t, size_t, mbstate_t * __restrict, locale_t);
  53
  54         NORMALIZE_LOCALE(loc);
  55         __wcsnrtombs = loc->__lc_ctype->__wcsnrtombs;
  56         FLOCKFILE(fp);
  57         ORIENT(fp, 1);
  58         if (prepwrite(fp) != 0)
  59                 goto error;
  60         uio.uio_iov = &iov;
  61         uio.uio_iovcnt = 1;
  62         iov.iov_base = buf;
  63         do {
  64                 nbytes = __wcsnrtombs(buf, &wsp, SIZE_T_MAX, sizeof(buf),
  65                     &fp->_mbstate, loc);
  66                 if (nbytes == (size_t)-1)
  67                         goto error;
  68                 iov.iov_len = uio.uio_resid = nbytes;
  69                 if (__sfvwrite(fp, &uio) != 0)
  70                         goto error;
  71         } while (wsp != NULL);
  72         FUNLOCKFILE(fp);
  73         return (0);
  74
  75 error:
  76         FUNLOCKFILE(fp);
  77         return (-1);
  78 }
  79
  80 int
  81 fputws(const wchar_t * __restrict ws, FILE * __restrict fp)
  82 {
  83         return fputws_l(ws, fp, __current_locale());
  84 }