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) 1994 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 "ktable.h"
29*16d86563SAlexander Pyhalov #include "utf_johap92.h"
30*16d86563SAlexander Pyhalov
31*16d86563SAlexander Pyhalov
32*16d86563SAlexander Pyhalov /**** _ I C V _ O P E N ****/
33*16d86563SAlexander Pyhalov
_icv_open()34*16d86563SAlexander Pyhalov void* _icv_open()
35*16d86563SAlexander Pyhalov {
36*16d86563SAlexander Pyhalov _conv_desc* cd = (_conv_desc*)malloc(sizeof(_conv_desc));
37*16d86563SAlexander Pyhalov
38*16d86563SAlexander Pyhalov if (cd == (_conv_desc*)NULL)
39*16d86563SAlexander Pyhalov {
40*16d86563SAlexander Pyhalov errno = ENOMEM;
41*16d86563SAlexander Pyhalov return((void*)-1);
42*16d86563SAlexander Pyhalov }
43*16d86563SAlexander Pyhalov
44*16d86563SAlexander Pyhalov RESET_CONV_DESC();
45*16d86563SAlexander Pyhalov
46*16d86563SAlexander Pyhalov return((void*)cd);
47*16d86563SAlexander Pyhalov } /* end of int _icv_open(). */
48*16d86563SAlexander Pyhalov
49*16d86563SAlexander Pyhalov
50*16d86563SAlexander Pyhalov /**** _ I C V _ C L O S E ****/
51*16d86563SAlexander Pyhalov
_icv_close(_conv_desc * cd)52*16d86563SAlexander Pyhalov void _icv_close(_conv_desc* cd)
53*16d86563SAlexander Pyhalov {
54*16d86563SAlexander Pyhalov if (!cd)
55*16d86563SAlexander Pyhalov errno = EBADF;
56*16d86563SAlexander Pyhalov else
57*16d86563SAlexander Pyhalov free((void*)cd);
58*16d86563SAlexander Pyhalov } /* end of void _icv_close(_conv_desc*). */
59*16d86563SAlexander Pyhalov
60*16d86563SAlexander Pyhalov
61*16d86563SAlexander Pyhalov /**** _ I C V _ I C O N V ****/
62*16d86563SAlexander Pyhalov
_icv_iconv(_conv_desc * cd,char ** inbuf,size_t * inbufleft,char ** outbuf,size_t * outbufleft)63*16d86563SAlexander Pyhalov size_t _icv_iconv(_conv_desc* cd, char** inbuf, size_t* inbufleft,
64*16d86563SAlexander Pyhalov char** outbuf, size_t* outbufleft)
65*16d86563SAlexander Pyhalov {
66*16d86563SAlexander Pyhalov size_t ret_val = 0;
67*16d86563SAlexander Pyhalov unsigned char* ib;
68*16d86563SAlexander Pyhalov unsigned char* ob;
69*16d86563SAlexander Pyhalov unsigned char* ibtail;
70*16d86563SAlexander Pyhalov unsigned char* obtail;
71*16d86563SAlexander Pyhalov
72*16d86563SAlexander Pyhalov if (!cd)
73*16d86563SAlexander Pyhalov {
74*16d86563SAlexander Pyhalov errno = EBADF;
75*16d86563SAlexander Pyhalov return((size_t)-1);
76*16d86563SAlexander Pyhalov }
77*16d86563SAlexander Pyhalov
78*16d86563SAlexander Pyhalov if (!inbuf || !(*inbuf))
79*16d86563SAlexander Pyhalov {
80*16d86563SAlexander Pyhalov RESET_CONV_DESC();
81*16d86563SAlexander Pyhalov return((size_t)0);
82*16d86563SAlexander Pyhalov }
83*16d86563SAlexander Pyhalov
84*16d86563SAlexander Pyhalov ib = (unsigned char*)*inbuf;
85*16d86563SAlexander Pyhalov ob = (unsigned char*)*outbuf;
86*16d86563SAlexander Pyhalov ibtail = ib + *inbufleft;
87*16d86563SAlexander Pyhalov obtail = ob + *outbufleft;
88*16d86563SAlexander Pyhalov
89*16d86563SAlexander Pyhalov while (ib < ibtail)
90*16d86563SAlexander Pyhalov {
91*16d86563SAlexander Pyhalov if (!(*ib & 0x80)) /* 7 bits */
92*16d86563SAlexander Pyhalov {
93*16d86563SAlexander Pyhalov PROCESS_PRIOR_CVC();
94*16d86563SAlexander Pyhalov
95*16d86563SAlexander Pyhalov if (ob >= obtail)
96*16d86563SAlexander Pyhalov {
97*16d86563SAlexander Pyhalov errno = E2BIG;
98*16d86563SAlexander Pyhalov ret_val = (size_t)-1;
99*16d86563SAlexander Pyhalov break;
100*16d86563SAlexander Pyhalov }
101*16d86563SAlexander Pyhalov *ob++ = *ib++;
102*16d86563SAlexander Pyhalov }
103*16d86563SAlexander Pyhalov else if ((*ib & 0xF0) == 0xE0) /* 16 bits */
104*16d86563SAlexander Pyhalov {
105*16d86563SAlexander Pyhalov unsigned long u;
106*16d86563SAlexander Pyhalov
107*16d86563SAlexander Pyhalov if ((ibtail - ib) < 3)
108*16d86563SAlexander Pyhalov {
109*16d86563SAlexander Pyhalov errno = EINVAL;
110*16d86563SAlexander Pyhalov ret_val = (size_t)-1;
111*16d86563SAlexander Pyhalov break;
112*16d86563SAlexander Pyhalov }
113*16d86563SAlexander Pyhalov
114*16d86563SAlexander Pyhalov u = ((unsigned long)(*ib) << 16) |
115*16d86563SAlexander Pyhalov ((unsigned long)(*(ib + 1)) << 8) |
116*16d86563SAlexander Pyhalov (unsigned long)(*(ib + 2));
117*16d86563SAlexander Pyhalov if (u == 0xE1859F ||
118*16d86563SAlexander Pyhalov (u >= 0xE18480 && u <= 0xE18492)) /* Ci */
119*16d86563SAlexander Pyhalov {
120*16d86563SAlexander Pyhalov PROCESS_PRIOR_CVC();
121*16d86563SAlexander Pyhalov
122*16d86563SAlexander Pyhalov cd->ci = (u == 0xE1859F) ? CVC_FILL
123*16d86563SAlexander Pyhalov : u - 0xE18480;
124*16d86563SAlexander Pyhalov cd->prev_state = CI;
125*16d86563SAlexander Pyhalov }
126*16d86563SAlexander Pyhalov else if (u == 0xE185A0 ||
127*16d86563SAlexander Pyhalov (u >= 0xE185A1 && u <= 0xE185B5)) /* V */
128*16d86563SAlexander Pyhalov {
129*16d86563SAlexander Pyhalov if (cd->prev_state != E && cd->prev_state != CI)
130*16d86563SAlexander Pyhalov PROCESS_PRIOR_CVC();
131*16d86563SAlexander Pyhalov
132*16d86563SAlexander Pyhalov cd->v = (u == 0xE185A0) ? CVC_FILL
133*16d86563SAlexander Pyhalov : u - 0xE185A1;
134*16d86563SAlexander Pyhalov cd->prev_state = V;
135*16d86563SAlexander Pyhalov }
136*16d86563SAlexander Pyhalov else if ((u >= 0xE186A8 && u <= 0xE186BF) ||
137*16d86563SAlexander Pyhalov (u >= 0xE18780 && u <= 0xE18782)) /* Cf */
138*16d86563SAlexander Pyhalov {
139*16d86563SAlexander Pyhalov if (cd->prev_state != E && cd->prev_state != V)
140*16d86563SAlexander Pyhalov PROCESS_PRIOR_CVC();
141*16d86563SAlexander Pyhalov
142*16d86563SAlexander Pyhalov cd->cf = u - ((u >= 0xE18780) ? 0xE18766
143*16d86563SAlexander Pyhalov : 0xE186A6);
144*16d86563SAlexander Pyhalov cd->prev_state = CF;
145*16d86563SAlexander Pyhalov
146*16d86563SAlexander Pyhalov PROCESS_PRIOR_CVC();
147*16d86563SAlexander Pyhalov }
148*16d86563SAlexander Pyhalov else if (u >= 0xE082A1 && u <= 0xEFBFA6)
149*16d86563SAlexander Pyhalov {
150*16d86563SAlexander Pyhalov register int h, i, j, l;
151*16d86563SAlexander Pyhalov
152*16d86563SAlexander Pyhalov PROCESS_PRIOR_CVC();
153*16d86563SAlexander Pyhalov
154*16d86563SAlexander Pyhalov if ((obtail - ob) < 2)
155*16d86563SAlexander Pyhalov {
156*16d86563SAlexander Pyhalov errno = E2BIG;
157*16d86563SAlexander Pyhalov ret_val = (size_t)-1;
158*16d86563SAlexander Pyhalov break;
159*16d86563SAlexander Pyhalov }
160*16d86563SAlexander Pyhalov
161*16d86563SAlexander Pyhalov for (l = 0, h = MAX_U2J92_NUM; l < h; )
162*16d86563SAlexander Pyhalov {
163*16d86563SAlexander Pyhalov i = (l + h) / 2;
164*16d86563SAlexander Pyhalov if (utf82johap92_tbl[i].utf8 == u)
165*16d86563SAlexander Pyhalov break;
166*16d86563SAlexander Pyhalov else if (utf82johap92_tbl[l].utf8 == u)
167*16d86563SAlexander Pyhalov {
168*16d86563SAlexander Pyhalov i = l;
169*16d86563SAlexander Pyhalov break;
170*16d86563SAlexander Pyhalov }
171*16d86563SAlexander Pyhalov else if (utf82johap92_tbl[h].utf8 == u)
172*16d86563SAlexander Pyhalov {
173*16d86563SAlexander Pyhalov i = h;
174*16d86563SAlexander Pyhalov break;
175*16d86563SAlexander Pyhalov }
176*16d86563SAlexander Pyhalov else if (utf82johap92_tbl[i].utf8 < u)
177*16d86563SAlexander Pyhalov l = i + 1;
178*16d86563SAlexander Pyhalov else
179*16d86563SAlexander Pyhalov h = i - 1;
180*16d86563SAlexander Pyhalov }
181*16d86563SAlexander Pyhalov
182*16d86563SAlexander Pyhalov if (utf82johap92_tbl[i].utf8 != u)
183*16d86563SAlexander Pyhalov {
184*16d86563SAlexander Pyhalov /* Let's assume the code is non-
185*16d86563SAlexander Pyhalov * identical. */
186*16d86563SAlexander Pyhalov *ob++ = NON_IDENTICAL;
187*16d86563SAlexander Pyhalov *ob++ = NON_IDENTICAL;
188*16d86563SAlexander Pyhalov ret_val += 2;
189*16d86563SAlexander Pyhalov }
190*16d86563SAlexander Pyhalov else
191*16d86563SAlexander Pyhalov {
192*16d86563SAlexander Pyhalov *ob++ = (char)
193*16d86563SAlexander Pyhalov ((utf82johap92_tbl[i].code >> 8)
194*16d86563SAlexander Pyhalov & 0xFF);
195*16d86563SAlexander Pyhalov *ob++ = (char)(utf82johap92_tbl[i].code
196*16d86563SAlexander Pyhalov & 0xFF);
197*16d86563SAlexander Pyhalov }
198*16d86563SAlexander Pyhalov }
199*16d86563SAlexander Pyhalov else
200*16d86563SAlexander Pyhalov {
201*16d86563SAlexander Pyhalov PROCESS_PRIOR_CVC();
202*16d86563SAlexander Pyhalov
203*16d86563SAlexander Pyhalov /* Let's assume the code is non-identical. */
204*16d86563SAlexander Pyhalov if ((obtail - ob) < 2)
205*16d86563SAlexander Pyhalov {
206*16d86563SAlexander Pyhalov errno = E2BIG;
207*16d86563SAlexander Pyhalov ret_val = (size_t)-1;
208*16d86563SAlexander Pyhalov break;
209*16d86563SAlexander Pyhalov }
210*16d86563SAlexander Pyhalov *ob++ = NON_IDENTICAL;
211*16d86563SAlexander Pyhalov *ob++ = NON_IDENTICAL;
212*16d86563SAlexander Pyhalov ret_val += 2;
213*16d86563SAlexander Pyhalov }
214*16d86563SAlexander Pyhalov ib += 3;
215*16d86563SAlexander Pyhalov }
216*16d86563SAlexander Pyhalov else /* 11, 21, 26 & 31 bits codes won't be able to convert. */
217*16d86563SAlexander Pyhalov {
218*16d86563SAlexander Pyhalov short int offset;
219*16d86563SAlexander Pyhalov
220*16d86563SAlexander Pyhalov PROCESS_PRIOR_CVC();
221*16d86563SAlexander Pyhalov
222*16d86563SAlexander Pyhalov if ((*ib & 0xE0) == 0xC0) /* 11 */
223*16d86563SAlexander Pyhalov offset = 2;
224*16d86563SAlexander Pyhalov else if ((*ib & 0xF0) == 0xE0) /* 16 */
225*16d86563SAlexander Pyhalov offset = 3;
226*16d86563SAlexander Pyhalov else if ((*ib & 0xF8) == 0xF0) /* 21 */
227*16d86563SAlexander Pyhalov offset = 4;
228*16d86563SAlexander Pyhalov else if ((*ib & 0xFC) == 0xF8) /* 26 */
229*16d86563SAlexander Pyhalov offset = 5;
230*16d86563SAlexander Pyhalov else if ((*ib & 0xFE) == 0xFC) /* 31 */
231*16d86563SAlexander Pyhalov offset = 6;
232*16d86563SAlexander Pyhalov else /* Illegal sequence. */
233*16d86563SAlexander Pyhalov offset = 1;
234*16d86563SAlexander Pyhalov
235*16d86563SAlexander Pyhalov if ((ibtail - ib) < offset)
236*16d86563SAlexander Pyhalov {
237*16d86563SAlexander Pyhalov errno = EINVAL;
238*16d86563SAlexander Pyhalov ret_val = (size_t)-1;
239*16d86563SAlexander Pyhalov break;
240*16d86563SAlexander Pyhalov }
241*16d86563SAlexander Pyhalov ib += offset;
242*16d86563SAlexander Pyhalov
243*16d86563SAlexander Pyhalov /* Let's assume the code is non-identical. */
244*16d86563SAlexander Pyhalov offset = (offset > 2) ? 2 : 1;
245*16d86563SAlexander Pyhalov if ((obtail - ob) < offset)
246*16d86563SAlexander Pyhalov {
247*16d86563SAlexander Pyhalov errno = E2BIG;
248*16d86563SAlexander Pyhalov ret_val = (size_t)-1;
249*16d86563SAlexander Pyhalov break;
250*16d86563SAlexander Pyhalov }
251*16d86563SAlexander Pyhalov *ob++ = NON_IDENTICAL;
252*16d86563SAlexander Pyhalov if (offset > 1)
253*16d86563SAlexander Pyhalov *ob++ = NON_IDENTICAL;
254*16d86563SAlexander Pyhalov ret_val += offset;
255*16d86563SAlexander Pyhalov }
256*16d86563SAlexander Pyhalov }
257*16d86563SAlexander Pyhalov
258*16d86563SAlexander Pyhalov *inbuf = (char*)ib;
259*16d86563SAlexander Pyhalov *inbufleft = ibtail - ib;
260*16d86563SAlexander Pyhalov *outbuf = (char*)ob;
261*16d86563SAlexander Pyhalov *outbufleft = obtail - ob;
262*16d86563SAlexander Pyhalov
263*16d86563SAlexander Pyhalov return(ret_val);
264*16d86563SAlexander Pyhalov } /* end of size_t _icv_iconv(_conv_desc*, char**, size_t*, char**, size_t*).*/
265