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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <stdlib.h>
#include <errno.h>
#include <euc.h>
#include "japanese.h"
#include "jfp_iconv_unicode.h"
#define JFP_U2E_ICONV_X0213
#include "jfp_ucs2_to_euc16.h"
#define DEF_SINGLE '?'
#define CS0_SEQ2 0x28 /* ( */
#define CS0_SEQ3 0x42 /* B */
#define CS1_SEQ2 0x24 /* $ */
#define CS1_SEQ3 0x28 /* ( */
#define CS1_SEQ4 0x51 /* Q */
#define CS3_SEQ2 0x24 /* $ */
#define CS3_SEQ3 0x28 /* ( */
#define CS3_SEQ4 0x50 /* P */
struct _icv_state {
int _st_cset;
};
void *
_icv_open(void)
{
void *cd;
struct _icv_state *st;
cd = _icv_open_unicode(sizeof (struct _icv_state));
if (cd != NULL) {
st = (struct _icv_state *)(_icv_get_ext(cd));
st->_st_cset = CS_0;
}
return (cd);
}
void
_icv_close(void *cd)
{
_icv_close_unicode(cd);
return;
}
size_t
_icv_iconv(void *cd, char **inbuf, size_t *inbytesleft,
char **outbuf, size_t *outbytesleft)
{
unsigned int u32; /* UTF-32 */
unsigned short e16; /* 16-bit EUC */
unsigned char ic;
size_t rv = (size_t)0;
struct _icv_state *st = (struct _icv_state *)(_icv_get_ext(cd));
int cset;
unsigned char *ip;
size_t ileft;
char *op;
size_t oleft;
/*
* If inbuf and/or *inbuf are NULL, reset conversion descriptor
* and put escape sequence if needed.
*/
if ((inbuf == NULL) || (*inbuf == NULL)) {
if (st->_st_cset != CS_0) {
if ((outbuf != NULL) && (*outbuf != NULL)
&& (outbytesleft != NULL)) {
op = (char *)*outbuf;
oleft = *outbytesleft;
NPUT(ESC, "RESET-SEQ-ESC");
NPUT(CS0_SEQ2, "RESET-SEQ2");
NPUT(CS0_SEQ3, "RESET-SEQ3");
*outbuf = (char *)op;
*outbytesleft = oleft;
}
st->_st_cset = CS_0;
_icv_reset_unicode(cd);
}
return ((size_t)0);
}
cset = st->_st_cset;
ip = (unsigned char *)*inbuf;
ileft = *inbytesleft;
op = *outbuf;
oleft = *outbytesleft;
while (ileft != 0) {
GETU(&u32)
e16 = _jfp_u32_to_euc16(u32);
switch (e16 & 0x8080) {
case 0x0000: /* CS0 */
if (cset != CS_0) {
NPUT(ESC, "CS0-SEQ-ESC");
NPUT(CS0_SEQ2, "CS0-SEQ2");
NPUT(CS0_SEQ3, "CS0-SEQ3");
cset = CS_0;
}
ic = (unsigned char)e16;
NPUT(ic, "CS0");
break;
case 0x8080: /* CS1 */
if (cset != CS_1) {
NPUT(ESC, "CS1-SEQ-ESC");
NPUT(CS1_SEQ2, "CS1-SEQ2");
NPUT(CS1_SEQ3, "CS1-SEQ3");
NPUT(CS1_SEQ4, "CS1-SEQ4");
cset = CS_1;
}
ic = (unsigned char)((e16 >> 8) & 0x7f);
NPUT(ic, "CS1-1");
ic = (unsigned char)(e16 & 0x7f);
NPUT(ic, "CS1-2");
break;
case 0x0080: /* CS2 */
if (cset != CS_0) {
NPUT(ESC, "CS2-REPL-SEQ-ESC");
NPUT(CS0_SEQ2, "CS2-REPL-SEQ2");
NPUT(CS0_SEQ3, "CS2-REPL-SEQ3");
cset = CS_0;
}
ic = DEF_SINGLE;
NPUT(ic, "CS2-REPL");
break;
case 0x8000: /* CS3 */
if (cset != CS_3) {
NPUT(ESC, "CS3-SEQ-ESC");
NPUT(CS3_SEQ2, "CS3-SEQ2");
NPUT(CS3_SEQ3, "CS3-SEQ3");
NPUT(CS3_SEQ4, "CS3-SEQ4");
cset = CS_3;
}
ic = (unsigned char)((e16 >> 8) & 0x7f);
NPUT(ic, "CS3-1");
ic = (unsigned char)(e16 & 0x7f);
NPUT(ic, "CS3-2");
break;
}
next:
/*
* One character successfully converted so update
* values outside of this function's stack.
*/
*inbuf = (char *)ip;
*inbytesleft = ileft;
*outbuf = op;
*outbytesleft = oleft;
st->_st_cset = cset;
}
ret:
DEBUGPRINTERROR
/*
* Return value for successful return is not defined by XPG
* so return same as *inbytesleft as existing codes do.
*/
return ((rv == (size_t)-1) ? rv : *inbytesleft);
}
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