1*16d86563SAlexander Pyhalov /*
2*16d86563SAlexander Pyhalov * CDDL HEADER START
3*16d86563SAlexander Pyhalov *
4*16d86563SAlexander Pyhalov * The contents of this file are subject to the terms of the
5*16d86563SAlexander Pyhalov * Common Development and Distribution License (the "License").
6*16d86563SAlexander Pyhalov * You may not use this file except in compliance with the License.
7*16d86563SAlexander Pyhalov *
8*16d86563SAlexander Pyhalov * You can obtain a copy of the license at src/OPENSOLARIS.LICENSE
9*16d86563SAlexander Pyhalov * or http://www.opensolaris.org/os/licensing.
10*16d86563SAlexander Pyhalov * See the License for the specific language governing permissions
11*16d86563SAlexander Pyhalov * and limitations under the License.
12*16d86563SAlexander Pyhalov *
13*16d86563SAlexander Pyhalov * When distributing Covered Code, include this CDDL HEADER in each
14*16d86563SAlexander Pyhalov * file and include the License file at src/OPENSOLARIS.LICENSE.
15*16d86563SAlexander Pyhalov * If applicable, add the following below this CDDL HEADER, with the
16*16d86563SAlexander Pyhalov * fields enclosed by brackets "[]" replaced with your own identifying
17*16d86563SAlexander Pyhalov * information: Portions Copyright [yyyy] [name of copyright owner]
18*16d86563SAlexander Pyhalov *
19*16d86563SAlexander Pyhalov * CDDL HEADER END
20*16d86563SAlexander Pyhalov */
21*16d86563SAlexander Pyhalov /*
22*16d86563SAlexander Pyhalov * Copyright (c) 1996 by Sun Microsystems, Inc.
23*16d86563SAlexander Pyhalov */
24*16d86563SAlexander Pyhalov
25*16d86563SAlexander Pyhalov
26*16d86563SAlexander Pyhalov #include <stdlib.h>
27*16d86563SAlexander Pyhalov #include <errno.h>
28*16d86563SAlexander Pyhalov #include <widec.h>
29*16d86563SAlexander Pyhalov #include "common_han.h"
30*16d86563SAlexander Pyhalov #include "euc_utf_api.h"
31*16d86563SAlexander Pyhalov
32*16d86563SAlexander Pyhalov #define ESC 0x1B
33*16d86563SAlexander Pyhalov #define SO 0x0E
34*16d86563SAlexander Pyhalov #define SI 0x0F
35*16d86563SAlexander Pyhalov
36*16d86563SAlexander Pyhalov typedef struct __conv_desc {
37*16d86563SAlexander Pyhalov enum { NOT_DEFINED_YET, KSC5601 } designator;
38*16d86563SAlexander Pyhalov enum { ASCII, HANGUL } state;
39*16d86563SAlexander Pyhalov } _conv_desc;
40*16d86563SAlexander Pyhalov
41*16d86563SAlexander Pyhalov /**** _ I C V _ O P E N ****/
42*16d86563SAlexander Pyhalov
_icv_open()43*16d86563SAlexander Pyhalov void* _icv_open()
44*16d86563SAlexander Pyhalov {
45*16d86563SAlexander Pyhalov _conv_desc* cd = (_conv_desc*)malloc(sizeof(_conv_desc));
46*16d86563SAlexander Pyhalov
47*16d86563SAlexander Pyhalov if (cd == (_conv_desc*)NULL)
48*16d86563SAlexander Pyhalov {
49*16d86563SAlexander Pyhalov errno = ENOMEM;
50*16d86563SAlexander Pyhalov return((void*)-1);
51*16d86563SAlexander Pyhalov }
52*16d86563SAlexander Pyhalov
53*16d86563SAlexander Pyhalov cd->designator = NOT_DEFINED_YET;
54*16d86563SAlexander Pyhalov cd->state = ASCII;
55*16d86563SAlexander Pyhalov
56*16d86563SAlexander Pyhalov return((void*)cd);
57*16d86563SAlexander Pyhalov } /* end of int _icv_open(). */
58*16d86563SAlexander Pyhalov
59*16d86563SAlexander Pyhalov
60*16d86563SAlexander Pyhalov /**** _ I C V _ C L O S E ****/
61*16d86563SAlexander Pyhalov
_icv_close(_conv_desc * cd)62*16d86563SAlexander Pyhalov void _icv_close(_conv_desc* cd)
63*16d86563SAlexander Pyhalov {
64*16d86563SAlexander Pyhalov if (!cd)
65*16d86563SAlexander Pyhalov errno = EBADF;
66*16d86563SAlexander Pyhalov else
67*16d86563SAlexander Pyhalov free((void*)cd);
68*16d86563SAlexander Pyhalov } /* end of void _icv_close(_conv_desc*). */
69*16d86563SAlexander Pyhalov
70*16d86563SAlexander Pyhalov
71*16d86563SAlexander Pyhalov /**** _ I C V _ I C O N V ****/
72*16d86563SAlexander Pyhalov
_icv_iconv(_conv_desc * cd,char ** inbuf,size_t * inbufleft,char ** outbuf,size_t * outbufleft)73*16d86563SAlexander Pyhalov size_t _icv_iconv(_conv_desc* cd, char** inbuf, size_t* inbufleft,
74*16d86563SAlexander Pyhalov char** outbuf, size_t* outbufleft)
75*16d86563SAlexander Pyhalov {
76*16d86563SAlexander Pyhalov size_t ret_val = 0;
77*16d86563SAlexander Pyhalov unsigned char* ib;
78*16d86563SAlexander Pyhalov unsigned char* ob;
79*16d86563SAlexander Pyhalov unsigned char* ibtail;
80*16d86563SAlexander Pyhalov unsigned char* obtail;
81*16d86563SAlexander Pyhalov
82*16d86563SAlexander Pyhalov if (!cd)
83*16d86563SAlexander Pyhalov {
84*16d86563SAlexander Pyhalov errno = EBADF;
85*16d86563SAlexander Pyhalov return((size_t)-1);
86*16d86563SAlexander Pyhalov }
87*16d86563SAlexander Pyhalov
88*16d86563SAlexander Pyhalov if (!inbuf || !(*inbuf))
89*16d86563SAlexander Pyhalov {
90*16d86563SAlexander Pyhalov cd->designator = NOT_DEFINED_YET;
91*16d86563SAlexander Pyhalov cd->state = ASCII;
92*16d86563SAlexander Pyhalov return((size_t)0);
93*16d86563SAlexander Pyhalov }
94*16d86563SAlexander Pyhalov
95*16d86563SAlexander Pyhalov ib = (unsigned char*)*inbuf;
96*16d86563SAlexander Pyhalov ob = (unsigned char*)*outbuf;
97*16d86563SAlexander Pyhalov ibtail = ib + *inbufleft;
98*16d86563SAlexander Pyhalov obtail = ob + *outbufleft;
99*16d86563SAlexander Pyhalov
100*16d86563SAlexander Pyhalov while (ib < ibtail)
101*16d86563SAlexander Pyhalov {
102*16d86563SAlexander Pyhalov if (cd->designator == KSC5601)
103*16d86563SAlexander Pyhalov {
104*16d86563SAlexander Pyhalov hcode_type euc_code, utf_code;
105*16d86563SAlexander Pyhalov
106*16d86563SAlexander Pyhalov if (*ib == SI)
107*16d86563SAlexander Pyhalov {
108*16d86563SAlexander Pyhalov cd->state = ASCII;
109*16d86563SAlexander Pyhalov ib++;
110*16d86563SAlexander Pyhalov continue;
111*16d86563SAlexander Pyhalov }
112*16d86563SAlexander Pyhalov else if (*ib == SO)
113*16d86563SAlexander Pyhalov {
114*16d86563SAlexander Pyhalov cd->state = HANGUL;
115*16d86563SAlexander Pyhalov ib++;
116*16d86563SAlexander Pyhalov continue;
117*16d86563SAlexander Pyhalov }
118*16d86563SAlexander Pyhalov else if ((*ib == ' ' && cd->state == HANGUL) ||
119*16d86563SAlexander Pyhalov cd->state == ASCII)
120*16d86563SAlexander Pyhalov {
121*16d86563SAlexander Pyhalov if (ob >= obtail)
122*16d86563SAlexander Pyhalov {
123*16d86563SAlexander Pyhalov errno = E2BIG;
124*16d86563SAlexander Pyhalov ret_val = (size_t)-1;
125*16d86563SAlexander Pyhalov break;
126*16d86563SAlexander Pyhalov }
127*16d86563SAlexander Pyhalov *ob++ = *ib++;
128*16d86563SAlexander Pyhalov continue;
129*16d86563SAlexander Pyhalov }
130*16d86563SAlexander Pyhalov
131*16d86563SAlexander Pyhalov /* Pure KS C 5601 Wansung code */
132*16d86563SAlexander Pyhalov if ((ibtail - ib) < 2)
133*16d86563SAlexander Pyhalov {
134*16d86563SAlexander Pyhalov errno = EINVAL;
135*16d86563SAlexander Pyhalov ret_val = (size_t)-1;
136*16d86563SAlexander Pyhalov break;
137*16d86563SAlexander Pyhalov }
138*16d86563SAlexander Pyhalov
139*16d86563SAlexander Pyhalov if (*ib < 0x21 || *ib > 0x7E || *(ib + 1) < 0x21 ||
140*16d86563SAlexander Pyhalov *(ib + 1) == 0x7F)
141*16d86563SAlexander Pyhalov {
142*16d86563SAlexander Pyhalov errno = EILSEQ;
143*16d86563SAlexander Pyhalov ret_val = (size_t)-1;
144*16d86563SAlexander Pyhalov break;
145*16d86563SAlexander Pyhalov }
146*16d86563SAlexander Pyhalov
147*16d86563SAlexander Pyhalov euc_code.code = 0;
148*16d86563SAlexander Pyhalov euc_code.byte.byte3 = *ib;
149*16d86563SAlexander Pyhalov euc_code.byte.byte4 = *(ib + 1);
150*16d86563SAlexander Pyhalov euc_code.wansung.msb1 = 1;
151*16d86563SAlexander Pyhalov euc_code.wansung.msb2 = 1;
152*16d86563SAlexander Pyhalov
153*16d86563SAlexander Pyhalov utf_code = _wansung_to_utf8(euc_code);
154*16d86563SAlexander Pyhalov
155*16d86563SAlexander Pyhalov if (utf_code.code != 0)
156*16d86563SAlexander Pyhalov {
157*16d86563SAlexander Pyhalov if ((obtail - ob) < 3)
158*16d86563SAlexander Pyhalov {
159*16d86563SAlexander Pyhalov errno = E2BIG;
160*16d86563SAlexander Pyhalov ret_val = (size_t)-1;
161*16d86563SAlexander Pyhalov break;
162*16d86563SAlexander Pyhalov }
163*16d86563SAlexander Pyhalov /* UTF8 code from 2 bytes is always 3 bytes */
164*16d86563SAlexander Pyhalov *ob++ = (char)utf_code.byte.byte2;
165*16d86563SAlexander Pyhalov *ob++ = (char)utf_code.byte.byte3;
166*16d86563SAlexander Pyhalov *ob++ = (char)utf_code.byte.byte4;
167*16d86563SAlexander Pyhalov }
168*16d86563SAlexander Pyhalov else /* FAILED - this means input char isn't belong to
169*16d86563SAlexander Pyhalov * input codeset. */
170*16d86563SAlexander Pyhalov {
171*16d86563SAlexander Pyhalov errno = EILSEQ;
172*16d86563SAlexander Pyhalov ret_val = (size_t)-1;
173*16d86563SAlexander Pyhalov break;
174*16d86563SAlexander Pyhalov }
175*16d86563SAlexander Pyhalov ib += 2;
176*16d86563SAlexander Pyhalov
177*16d86563SAlexander Pyhalov }
178*16d86563SAlexander Pyhalov else
179*16d86563SAlexander Pyhalov {
180*16d86563SAlexander Pyhalov if (*ib == ESC)
181*16d86563SAlexander Pyhalov {
182*16d86563SAlexander Pyhalov if ((ibtail - ib) < 4)
183*16d86563SAlexander Pyhalov {
184*16d86563SAlexander Pyhalov errno = EINVAL;
185*16d86563SAlexander Pyhalov ret_val = (size_t)-1;
186*16d86563SAlexander Pyhalov break;
187*16d86563SAlexander Pyhalov }
188*16d86563SAlexander Pyhalov
189*16d86563SAlexander Pyhalov if (*(ib + 1) == '$' && *(ib + 2) == ')' &&
190*16d86563SAlexander Pyhalov *(ib + 3) == 'C')
191*16d86563SAlexander Pyhalov {
192*16d86563SAlexander Pyhalov cd->designator = KSC5601;
193*16d86563SAlexander Pyhalov ib += 4;
194*16d86563SAlexander Pyhalov continue;
195*16d86563SAlexander Pyhalov }
196*16d86563SAlexander Pyhalov }
197*16d86563SAlexander Pyhalov
198*16d86563SAlexander Pyhalov if (ob >= obtail)
199*16d86563SAlexander Pyhalov {
200*16d86563SAlexander Pyhalov errno = E2BIG;
201*16d86563SAlexander Pyhalov ret_val = (size_t)-1;
202*16d86563SAlexander Pyhalov break;
203*16d86563SAlexander Pyhalov }
204*16d86563SAlexander Pyhalov *ob++ = *ib++;
205*16d86563SAlexander Pyhalov }
206*16d86563SAlexander Pyhalov }
207*16d86563SAlexander Pyhalov
208*16d86563SAlexander Pyhalov *inbuf = (char*)ib;
209*16d86563SAlexander Pyhalov *inbufleft = ibtail - ib;
210*16d86563SAlexander Pyhalov *outbuf = (char*)ob;
211*16d86563SAlexander Pyhalov *outbufleft = obtail - ob;
212*16d86563SAlexander Pyhalov
213*16d86563SAlexander Pyhalov return(ret_val);
214*16d86563SAlexander Pyhalov } /* end of size_t _icv_iconv(_conv_desc*, char**, size_t*, char**, size_t*).*/
215