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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 (c) 1994 by Sun Microsystems, Inc.
*/
#include <stdlib.h>
#include <errno.h>
#include "ktable.h"
#include "johap92_utf.h"
/**** _ I C V _ O P E N ****/
void* _icv_open()
{
int* cd = (int*)malloc(sizeof(int));
if (cd == (int*)NULL)
{
errno = ENOMEM;
return((void*)-1);
}
*cd = MAGIC_NUMBER;
return((void*)cd);
} /* end of void* _icv_open(). */
/**** _ I C V _ C L O S E ****/
void _icv_close(int* cd)
{
if (!cd)
errno = EBADF;
else
free((void*)cd);
} /* end of void _icv_close(int*). */
/**** _ I C V _ I C O N V ****/
size_t _icv_iconv(int* cd, char** inbuf, size_t* inbufleft,
char** outbuf, size_t* outbufleft)
{
size_t ret_val = 0;
unsigned char* ib;
unsigned char* ob;
unsigned char* ibtail;
unsigned char* obtail;
if (!cd || (*cd) != MAGIC_NUMBER)
{
errno = EBADF;
return((size_t)-1);
}
if (!inbuf || !(*inbuf))
return((size_t)0);
ib = (unsigned char*)*inbuf;
ob = (unsigned char*)*outbuf;
ibtail = ib + *inbufleft;
obtail = ob + *outbufleft;
while (ib < ibtail)
{
if (*ib & 0x80)
{
unsigned short wcode;
unsigned long ci, v, cf;
char result;
extern char _johap92_to_utf8(unsigned long*,
unsigned long*,
unsigned long*,
unsigned short);
if ((ibtail - ib) < 2)
{
errno = EINVAL;
ret_val = (size_t)-1;
break;
}
if ((result = _johap92_to_utf8(&ci, &v, &cf,
((unsigned short)*ib << 8) |
((unsigned short)*(ib + 1) & 0xFF)))
== HANGUL)
{
if ((obtail - ob) < (cf ? 9 : 6))
{
errno = E2BIG;
ret_val = (size_t)-1;
break;
}
*ob++ = (char)((ci >> 16) & 0xFF);
*ob++ = (char)((ci >> 8) & 0xFF);
*ob++ = (char)(ci & 0xFF);
*ob++ = (char)((v >> 16) & 0xFF);
*ob++ = (char)((v >> 8) & 0xFF);
*ob++ = (char)(v & 0xFF);
if (cf)
{
*ob++ = (char)((cf >> 16) & 0xFF);
*ob++ = (char)((cf >> 8) & 0xFF);
*ob++ = (char)(cf & 0xFF);
}
}
else if (result == HANJA_OR_SYMBOL)
{
if ((obtail - ob) < 3)
{
errno = E2BIG;
ret_val = (size_t)-1;
break;
}
*ob++ = (char)((ci >> 16) & 0xFF);
*ob++ = (char)((ci >> 8) & 0xFF);
*ob++ = (char)(ci & 0xFF);
}
else /* FAILED - this means input char isn't belong to
* input codeset. */
{
errno = EILSEQ;
ret_val = (size_t)-1;
break;
}
ib += 2;
}
else /* CS0 */
{
if (ob >= obtail)
{
errno = E2BIG;
ret_val = (size_t)-1;
break;
}
*ob++ = *ib++;
}
}
*inbuf = (char*)ib;
*inbufleft = ibtail - ib;
*outbuf = (char*)ob;
*outbufleft = obtail - ob;
return(ret_val);
} /* end of size_t _icv_iconv(int*, char**, size_t*, char**, size_t*). */
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