lib/libc/iconv/iconv.c

   1 /*      $NetBSD: src/lib/libc/iconv/iconv.c,v 1.4 2004/08/02 13:38:21 tshiozak Exp $    */
   2 /*      $DragonFly: src/lib/libc/iconv/iconv.c,v 1.3 2005/11/23 08:50:34 swildner Exp $ */
   3
   4 /*-
   5  * Copyright (c)2003 Citrus Project,
   6  * All rights reserved.
   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  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  29
  30 #include <assert.h>
  31 #include <errno.h>
  32 #include <paths.h>
  33 #include <sys/queue.h>
  34
  35 #include <iconv.h>
  36
  37 #include <sys/types.h>
  38 #include "../citrus/citrus_types.h"
  39 #include "../citrus/citrus_module.h"
  40 #include "../citrus/citrus_esdb.h"
  41 #include "../citrus/citrus_hash.h"
  42 #include "../citrus/citrus_iconv.h"
  43
  44 #define ISBADF(_h_)     (!(_h_) || (_h_) == (iconv_t)-1)
  45
  46 iconv_t
  47 _iconv_open(const char *out, const char *in)
  48 {
  49         int ret;
  50         struct _citrus_iconv *handle;
  51
  52         ret = _citrus_iconv_open(&handle, _PATH_ICONV, in, out);
  53         if (ret) {
  54                 errno = ret;
  55                 return ((iconv_t)-1);
  56         }
  57
  58         return ((iconv_t)(void *)handle);
  59 }
  60
  61 int
  62 _iconv_close(iconv_t handle)
  63 {
  64         if (ISBADF(handle)) {
  65                 errno = EBADF;
  66                 return (-1);
  67         }
  68
  69         _citrus_iconv_close((struct _citrus_iconv *)(void *)handle);
  70
  71         return (0);
  72 }
  73
  74 size_t
  75 _iconv(iconv_t handle, const char **in, size_t *szin, char **out, size_t *szout)
  76 {
  77         int err;
  78         size_t ret;
  79
  80         if (ISBADF(handle)) {
  81                 errno = EBADF;
  82                 return ((size_t)-1);
  83         }
  84
  85         err = _citrus_iconv_convert(
  86                 (struct _citrus_iconv *)(void *)handle, in, szin, out, szout,
  87                 0, &ret);
  88         if (err) {
  89                 errno = err;
  90                 ret = (size_t)-1;
  91         }
  92
  93         return (ret);
  94 }
  95
  96 size_t
  97 __iconv(iconv_t handle, const char **in, size_t *szin, char **out,
  98         size_t *szout, u_int32_t flags, size_t *invalids)
  99 {
 100         int err;
 101         size_t ret;
 102
 103         if (ISBADF(handle)) {
 104                 errno = EBADF;
 105                 return ((size_t)-1);
 106         }
 107
 108         err = _citrus_iconv_convert(
 109                 (struct _citrus_iconv *)(void *)handle, in, szin, out, szout,
 110                 flags, &ret);
 111         if (invalids)
 112                 *invalids = ret;
 113         if (err) {
 114                 errno = err;
 115                 ret = (size_t)-1;
 116         }
 117
 118         return (ret);
 119 }
 120
 121 int
 122 __iconv_get_list(char ***rlist, size_t *rsz)
 123 {
 124         int ret;
 125
 126         ret = _citrus_esdb_get_list(rlist, rsz);
 127         if (ret) {
 128                 errno = ret;
 129                 return -1;
 130         }
 131
 132         return 0;
 133 }
 134
 135 void
 136 __iconv_free_list(char **list, size_t sz)
 137 {
 138         _citrus_esdb_free_list(list, sz);
 139 }
 140
 141 __weak_reference(_iconv, iconv);
 142 __weak_reference(_iconv_open, iconv_open);
 143 __weak_reference(_iconv_close, iconv_close);