stdio/fputwc-fbsd.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/fputwc.c,v 1.10 2004/07/20 08:27:27 tjr 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 <stdlib.h>
  37 #include <wchar.h>
  38 #include "un-namespace.h"
  39 #include "libc_private.h"
  40 #include "local.h"
  41 #include "mblocal.h"
  42
  43 /*
  44  * Non-MT-safe version.
  45  */
  46 __private_extern__ wint_t
  47 __fputwc(wchar_t wc, FILE *fp, locale_t loc)
  48 {
  49         char buf[MB_LEN_MAX];
  50         size_t i, len;
  51         struct __xlocale_st_runelocale *xrl = loc->__lc_ctype;
  52
  53         if (xrl->__mb_cur_max == 1 && wc > 0 && wc <= UCHAR_MAX) {
  54                 /*
  55                  * Assume single-byte locale with no special encoding.
  56                  * A more careful test would be to check
  57                  * _CurrentRuneLocale->encoding.
  58                  */
  59                 *buf = (unsigned char)wc;
  60                 len = 1;
  61         } else {
  62                 if ((len = xrl->__wcrtomb(buf, wc, &fp->_extra->mbstate, loc)) ==
  63                     (size_t)-1) {
  64                         fp->_flags |= __SERR;
  65                         return (WEOF);
  66                 }
  67         }
  68
  69         for (i = 0; i < len; i++)
  70                 if (__sputc((unsigned char)buf[i], fp) == EOF)
  71                         return (WEOF);
  72
  73         return ((wint_t)wc);
  74 }
  75
  76 /*
  77  * MT-safe version.
  78  */
  79 wint_t
  80 fputwc(wchar_t wc, FILE *fp)
  81 {
  82         wint_t r;
  83
  84         FLOCKFILE(fp);
  85         ORIENT(fp, 1);
  86         r = __fputwc(wc, fp, __current_locale());
  87         FUNLOCKFILE(fp);
  88
  89         return (r);
  90 }
  91
  92 wint_t
  93 fputwc_l(wchar_t wc, FILE *fp, locale_t loc)
  94 {
  95         wint_t r;
  96
  97         NORMALIZE_LOCALE(loc);
  98         FLOCKFILE(fp);
  99         ORIENT(fp, 1);
 100         r = __fputwc(wc, fp, loc);
 101         FUNLOCKFILE(fp);
 102
 103         return (r);
 104 }