/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2000-2001 Boris Popov
* 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>
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/iconv.h>
#include "iconv_converter_if.h"
/*
* "XLAT" converter
*/
#ifdef MODULE_DEPEND
MODULE_DEPEND(iconv_xlat, libiconv, 2, 2, 2);
#endif
/*
* XLAT converter instance
*/
struct iconv_xlat {
KOBJ_FIELDS;
u_char * d_table;
struct iconv_cspair * d_csp;
};
static int
iconv_xlat_open(struct iconv_converter_class *dcp,
struct iconv_cspair *csp, struct iconv_cspair *cspf, void **dpp)
{
struct iconv_xlat *dp;
dp = (struct iconv_xlat *)kobj_create((struct kobj_class*)dcp, M_ICONV, M_WAITOK);
dp->d_table = csp->cp_data;
dp->d_csp = csp;
csp->cp_refcount++;
*dpp = (void*)dp;
return 0;
}
static int
iconv_xlat_close(void *data)
{
struct iconv_xlat *dp = data;
dp->d_csp->cp_refcount--;
kobj_delete((struct kobj*)data, M_ICONV);
return 0;
}
static int
iconv_xlat_conv(void *d2p, const char **inbuf,
size_t *inbytesleft, char **outbuf, size_t *outbytesleft,
int convchar, int casetype)
{
struct iconv_xlat *dp = (struct iconv_xlat*)d2p;
const char *src;
char *dst;
int n, r;
if (inbuf == NULL || *inbuf == NULL || outbuf == NULL || *outbuf == NULL)
return 0;
if (casetype != 0)
return -1;
if (convchar == 1)
r = n = 1;
else
r = n = min(*inbytesleft, *outbytesleft);
src = *inbuf;
dst = *outbuf;
while(r--)
*dst++ = dp->d_table[(u_char)*src++];
*inbuf += n;
*outbuf += n;
*inbytesleft -= n;
*outbytesleft -= n;
return 0;
}
static const char *
iconv_xlat_name(struct iconv_converter_class *dcp)
{
return "xlat";
}
static kobj_method_t iconv_xlat_methods[] = {
KOBJMETHOD(iconv_converter_open, iconv_xlat_open),
KOBJMETHOD(iconv_converter_close, iconv_xlat_close),
KOBJMETHOD(iconv_converter_conv, iconv_xlat_conv),
#if 0
KOBJMETHOD(iconv_converter_init, iconv_xlat_init),
KOBJMETHOD(iconv_converter_done, iconv_xlat_done),
#endif
KOBJMETHOD(iconv_converter_name, iconv_xlat_name),
{0, 0}
};
KICONV_CONVERTER(xlat, sizeof(struct iconv_xlat));
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