6f2d8adb12
Add simple "xlat" converter which performs 8to8 table based conversion. Unicode converter will be added in the near future. Reviewed by: silence on arch@ Files placement reviewed by: bde Obtained from: smbfs
125 lines
3.6 KiB
C
125 lines
3.6 KiB
C
/*
|
|
* 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Boris Popov.
|
|
* 4. Neither the name of the author nor the names of any co-contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
#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, 1, 1, 1);
|
|
#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)
|
|
{
|
|
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;
|
|
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));
|