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iconv.c revision 1.2.4.1 
      1 /*	$NetBSD: iconv.c,v 1.2.4.1 2005/05/13 20:27:13 riz Exp $	*/
      2 
      3 /*-
      4  * Copyright (c)2003 Citrus Project,
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 #if defined(LIBC_SCCS) && !defined(lint)
     31 __RCSID("$NetBSD: iconv.c,v 1.2.4.1 2005/05/13 20:27:13 riz Exp $");
     32 #endif /* LIBC_SCCS and not lint */
     33 
     34 #include "namespace.h"
     35 #include <assert.h>
     36 #include <errno.h>
     37 #include <paths.h>
     38 #include <sys/queue.h>
     39 
     40 #include <iconv.h>
     41 
     42 #ifdef CITRUS_ICONV
     43 #include <sys/types.h>
     44 #include <citrus/citrus_types.h>
     45 #include <citrus/citrus_module.h>
     46 #include <citrus/citrus_esdb.h>
     47 #include <citrus/citrus_hash.h>
     48 #include <citrus/citrus_iconv.h>
     49 
     50 #define ISBADF(_h_)	(!(_h_) || (_h_) == (iconv_t)-1)
     51 
     52 #ifdef __weak_alias
     53 __weak_alias(iconv, _iconv)
     54 __weak_alias(iconv_open, _iconv_open)
     55 __weak_alias(iconv_close, _iconv_close)
     56 #endif
     57 
     58 iconv_t
     59 _iconv_open(const char *out, const char *in)
     60 {
     61 	int ret;
     62 	struct _citrus_iconv *handle;
     63 
     64 	ret = _citrus_iconv_open(&handle, _PATH_ICONV, in, out);
     65 	if (ret) {
     66 		errno = ret == ENOENT? EINVAL : ret;
     67 		return ((iconv_t)-1);
     68 	}
     69 
     70 	return ((iconv_t)(void *)handle);
     71 }
     72 
     73 int
     74 _iconv_close(iconv_t handle)
     75 {
     76 	if (ISBADF(handle)) {
     77 		errno = EBADF;
     78 		return (-1);
     79 	}
     80 
     81 	_citrus_iconv_close((struct _citrus_iconv *)(void *)handle);
     82 
     83 	return (0);
     84 }
     85 
     86 size_t
     87 _iconv(iconv_t handle, const char **in, size_t *szin, char **out, size_t *szout)
     88 {
     89 	int err;
     90 	size_t ret;
     91 
     92 	if (ISBADF(handle)) {
     93 		errno = EBADF;
     94 		return ((size_t)-1);
     95 	}
     96 
     97 	err = _citrus_iconv_convert(
     98 		(struct _citrus_iconv *)(void *)handle, in, szin, out, szout,
     99 		0, &ret);
    100 	if (err) {
    101 		errno = err;
    102 		ret = (size_t)-1;
    103 	}
    104 
    105 	return (ret);
    106 }
    107 
    108 size_t
    109 __iconv(iconv_t handle, const char **in, size_t *szin, char **out,
    110 	size_t *szout, u_int32_t flags, size_t *invalids)
    111 {
    112 	int err;
    113 	size_t ret;
    114 
    115 	if (ISBADF(handle)) {
    116 		errno = EBADF;
    117 		return ((size_t)-1);
    118 	}
    119 
    120 	err = _citrus_iconv_convert(
    121 		(struct _citrus_iconv *)(void *)handle, in, szin, out, szout,
    122 		flags, &ret);
    123 	if (invalids)
    124 		*invalids = ret;
    125 	if (err) {
    126 		errno = err;
    127 		ret = (size_t)-1;
    128 	}
    129 
    130 	return (ret);
    131 }
    132 
    133 int
    134 __iconv_get_list(char ***rlist, size_t *rsz)
    135 {
    136 	int ret;
    137 
    138 	ret = _citrus_esdb_get_list(rlist, rsz);
    139 	if (ret) {
    140 		errno = ret;
    141 		return -1;
    142 	}
    143 
    144 	return 0;
    145 }
    146 
    147 void
    148 __iconv_free_list(char **list, size_t sz)
    149 {
    150 	_citrus_esdb_free_list(list, sz);
    151 }
    152 
    153 #else
    154 iconv_t
    155 /*ARGSUSED*/
    156 _iconv_open(const char *in, const char *out)
    157 {
    158 	errno = EINVAL;
    159 	return ((iconv_t)-1);
    160 }
    161 int
    162 /*ARGSUSED*/
    163 _iconv_close(iconv_t handle)
    164 {
    165 	errno = EBADF;
    166 	return (-1);
    167 }
    168 size_t
    169 /*ARGSUSED*/
    170 _iconv(iconv_t handle, const char **in, size_t *szin, char **out, size_t *szout)
    171 {
    172 	errno = EBADF;
    173 	return ((size_t)-1);
    174 }
    175 int
    176 /*ARGSUSED*/
    177 __iconv_get_list(char ***rlist, size_t *rsz)
    178 {
    179 	errno = EINVAL;
    180 	return -1;
    181 }
    182 void
    183 /*ARGSUSED*/
    184 __iconv_free_list(char **list, size_t sz)
    185 {
    186 }
    187 #endif
    188