minix/lib/libc/iconv/iconv.c

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/* $NetBSD: iconv.c,v 1.12 2009/08/05 15:17:02 joerg Exp $ */
/*-
* Copyright (c)2003 Citrus Project,
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: iconv.c,v 1.12 2009/08/05 15:17:02 joerg Exp $");
#endif /* LIBC_SCCS and not lint */
#include "namespace.h"
#include <assert.h>
#include <errno.h>
#include <paths.h>
#include <sys/queue.h>
#include <iconv.h>
#ifdef __weak_alias
__weak_alias(iconv, _iconv)
__weak_alias(iconv_open, _iconv_open)
__weak_alias(iconv_close, _iconv_close)
#endif
#ifdef HAVE_CITRUS
#include <sys/types.h>
#include "citrus_types.h"
#include "citrus_module.h"
#include "citrus_esdb.h"
#include "citrus_hash.h"
#include "citrus_iconv.h"
#define ISBADF(_h_) (!(_h_) || (_h_) == (iconv_t)-1)
iconv_t
iconv_open(const char *out, const char *in)
{
int ret;
struct _citrus_iconv *handle;
ret = _citrus_iconv_open(&handle, _PATH_ICONV, in, out);
if (ret) {
errno = ret == ENOENT? EINVAL : ret;
return ((iconv_t)-1);
}
return ((iconv_t)(void *)handle);
}
int
iconv_close(iconv_t handle)
{
if (ISBADF(handle)) {
errno = EBADF;
return (-1);
}
_citrus_iconv_close((struct _citrus_iconv *)(void *)handle);
return (0);
}
size_t
iconv(iconv_t handle, const char **in, size_t *szin, char **out, size_t *szout)
{
int err;
size_t ret;
if (ISBADF(handle)) {
errno = EBADF;
return ((size_t)-1);
}
err = _citrus_iconv_convert(
(struct _citrus_iconv *)(void *)handle, in, szin, out, szout,
0, &ret);
if (err) {
errno = err;
ret = (size_t)-1;
}
return (ret);
}
size_t
__iconv(iconv_t handle, const char **in, size_t *szin, char **out,
size_t *szout, u_int32_t flags, size_t *invalids)
{
int err;
size_t ret;
if (ISBADF(handle)) {
errno = EBADF;
return ((size_t)-1);
}
err = _citrus_iconv_convert(
(struct _citrus_iconv *)(void *)handle, in, szin, out, szout,
flags, &ret);
if (invalids)
*invalids = ret;
if (err) {
errno = err;
ret = (size_t)-1;
}
return (ret);
}
int
__iconv_get_list(char ***rlist, size_t *rsz)
{
int ret;
ret = _citrus_esdb_get_list(rlist, rsz);
if (ret) {
errno = ret;
return -1;
}
return 0;
}
void
__iconv_free_list(char **list, size_t sz)
{
_citrus_esdb_free_list(list, sz);
}
#else
iconv_t
/*ARGSUSED*/
iconv_open(const char *in, const char *out)
{
errno = EINVAL;
return ((iconv_t)-1);
}
int
/*ARGSUSED*/
iconv_close(iconv_t handle)
{
errno = EBADF;
return (-1);
}
size_t
/*ARGSUSED*/
iconv(iconv_t handle, const char **in, size_t *szin, char **out, size_t *szout)
{
errno = EBADF;
return ((size_t)-1);
}
int
/*ARGSUSED*/
__iconv_get_list(char ***rlist, size_t *rsz)
{
errno = EINVAL;
return -1;
}
void
/*ARGSUSED*/
__iconv_free_list(char **list, size_t sz)
{
}
#endif