Home | History | Annotate | Line # | Download | only in iconv 
      1 /*	$NetBSD: iconv.c,v 1.14 2019/10/24 18:17:59 kamil 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 1.14 2019/10/24 18:17:59 kamil 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 __weak_alias
     43 __weak_alias(iconv, _iconv)
     44 __weak_alias(iconv_open, _iconv_open)
     45 __weak_alias(iconv_close, _iconv_close)
     46 #endif
     47 
     48 #include <sys/types.h>
     49 #include "citrus_types.h"
     50 #include "citrus_module.h"
     51 #include "citrus_esdb.h"
     52 #include "citrus_hash.h"
     53 #include "citrus_iconv.h"
     54 
     55 #define ISBADF(_h_)	(!(_h_) || (_h_) == (iconv_t)-1)
     56 
     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, 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,
     99 		(const char **)(void *)in, szin, out, szout, 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, 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,
    122 		(const char **)(void *)in, szin, out, szout, 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