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) 1995 by Sun Microsystems, Inc.
23*16d86563SAlexander Pyhalov * All Rights Reserved.
24*16d86563SAlexander Pyhalov */
25*16d86563SAlexander Pyhalov
26*16d86563SAlexander Pyhalov
27*16d86563SAlexander Pyhalov #include <errno.h>
28*16d86563SAlexander Pyhalov #include "ktable.h"
29*16d86563SAlexander Pyhalov #include "hangulcode.h"
30*16d86563SAlexander Pyhalov
31*16d86563SAlexander Pyhalov static unsigned short _johap92_to_wansung(unsigned short code);
32*16d86563SAlexander Pyhalov
33*16d86563SAlexander Pyhalov /**** _ I C V _ O P E N ****/
34*16d86563SAlexander Pyhalov
_icv_open()35*16d86563SAlexander Pyhalov void* _icv_open()
36*16d86563SAlexander Pyhalov {
37*16d86563SAlexander Pyhalov return((void*)MAGIC_NUMBER);
38*16d86563SAlexander Pyhalov } /* end of void* _icv_open(). */
39*16d86563SAlexander Pyhalov
40*16d86563SAlexander Pyhalov
41*16d86563SAlexander Pyhalov /**** _ I C V _ C L O S E ****/
42*16d86563SAlexander Pyhalov
_icv_close(int * cd)43*16d86563SAlexander Pyhalov void _icv_close(int* cd)
44*16d86563SAlexander Pyhalov {
45*16d86563SAlexander Pyhalov if (!cd || cd != (int*)MAGIC_NUMBER)
46*16d86563SAlexander Pyhalov errno = EBADF;
47*16d86563SAlexander Pyhalov } /* end of void _icv_close(int*). */
48*16d86563SAlexander Pyhalov
49*16d86563SAlexander Pyhalov
50*16d86563SAlexander Pyhalov /**** _ I C V _ I C O N V ****/
51*16d86563SAlexander Pyhalov
_icv_iconv(int * cd,char ** inbuf,size_t * inbufleft,char ** outbuf,size_t * outbufleft)52*16d86563SAlexander Pyhalov size_t _icv_iconv(int* cd, char** inbuf, size_t* inbufleft,
53*16d86563SAlexander Pyhalov char** outbuf, size_t* outbufleft)
54*16d86563SAlexander Pyhalov {
55*16d86563SAlexander Pyhalov size_t ret_val = 0;
56*16d86563SAlexander Pyhalov unsigned char* ib;
57*16d86563SAlexander Pyhalov unsigned char* ob;
58*16d86563SAlexander Pyhalov unsigned char* ibtail;
59*16d86563SAlexander Pyhalov unsigned char* obtail;
60*16d86563SAlexander Pyhalov
61*16d86563SAlexander Pyhalov if (!cd || cd != (int*)MAGIC_NUMBER)
62*16d86563SAlexander Pyhalov {
63*16d86563SAlexander Pyhalov errno = EBADF;
64*16d86563SAlexander Pyhalov return((size_t)-1);
65*16d86563SAlexander Pyhalov }
66*16d86563SAlexander Pyhalov
67*16d86563SAlexander Pyhalov if (!inbuf || !(*inbuf))
68*16d86563SAlexander Pyhalov return((size_t)0);
69*16d86563SAlexander Pyhalov
70*16d86563SAlexander Pyhalov ib = (unsigned char*)*inbuf;
71*16d86563SAlexander Pyhalov ob = (unsigned char*)*outbuf;
72*16d86563SAlexander Pyhalov ibtail = ib + *inbufleft;
73*16d86563SAlexander Pyhalov obtail = ob + *outbufleft;
74*16d86563SAlexander Pyhalov
75*16d86563SAlexander Pyhalov while (ib < ibtail)
76*16d86563SAlexander Pyhalov {
77*16d86563SAlexander Pyhalov if (!(*ib & 0x80))
78*16d86563SAlexander Pyhalov {
79*16d86563SAlexander Pyhalov if (ob >= obtail)
80*16d86563SAlexander Pyhalov {
81*16d86563SAlexander Pyhalov errno = E2BIG;
82*16d86563SAlexander Pyhalov ret_val = (size_t)-1;
83*16d86563SAlexander Pyhalov break;
84*16d86563SAlexander Pyhalov }
85*16d86563SAlexander Pyhalov *ob++ = *ib++;
86*16d86563SAlexander Pyhalov }
87*16d86563SAlexander Pyhalov else
88*16d86563SAlexander Pyhalov {
89*16d86563SAlexander Pyhalov unsigned short result;
90*16d86563SAlexander Pyhalov
91*16d86563SAlexander Pyhalov if ((ibtail - ib) < 2)
92*16d86563SAlexander Pyhalov {
93*16d86563SAlexander Pyhalov errno = EINVAL;
94*16d86563SAlexander Pyhalov ret_val = (size_t)-1;
95*16d86563SAlexander Pyhalov break;
96*16d86563SAlexander Pyhalov }
97*16d86563SAlexander Pyhalov
98*16d86563SAlexander Pyhalov result = _johap92_to_wansung((unsigned short)(*ib)<<8 |
99*16d86563SAlexander Pyhalov (unsigned short)(*(ib + 1)));
100*16d86563SAlexander Pyhalov if (result != FAILED && result != ILLEGAL_SEQ)
101*16d86563SAlexander Pyhalov {
102*16d86563SAlexander Pyhalov if ((obtail - ob) < 2)
103*16d86563SAlexander Pyhalov {
104*16d86563SAlexander Pyhalov errno = E2BIG;
105*16d86563SAlexander Pyhalov ret_val = (size_t)-1;
106*16d86563SAlexander Pyhalov break;
107*16d86563SAlexander Pyhalov }
108*16d86563SAlexander Pyhalov *ob++ = (unsigned char)(result >> 8);
109*16d86563SAlexander Pyhalov *ob++ = (unsigned char)(result & 0xFF);
110*16d86563SAlexander Pyhalov }
111*16d86563SAlexander Pyhalov else
112*16d86563SAlexander Pyhalov {
113*16d86563SAlexander Pyhalov errno = EILSEQ;
114*16d86563SAlexander Pyhalov ret_val = (size_t)-1;
115*16d86563SAlexander Pyhalov break;
116*16d86563SAlexander Pyhalov }
117*16d86563SAlexander Pyhalov ib += 2;
118*16d86563SAlexander Pyhalov }
119*16d86563SAlexander Pyhalov }
120*16d86563SAlexander Pyhalov
121*16d86563SAlexander Pyhalov *inbuf = (char*)ib;
122*16d86563SAlexander Pyhalov *inbufleft = ibtail - ib;
123*16d86563SAlexander Pyhalov *outbuf = (char*)ob;
124*16d86563SAlexander Pyhalov *outbufleft = obtail - ob;
125*16d86563SAlexander Pyhalov
126*16d86563SAlexander Pyhalov return(ret_val);
127*16d86563SAlexander Pyhalov } /* end of size_t _icv_iconv(int*, char**, size_t*, char**, size_t*). */
128*16d86563SAlexander Pyhalov
129*16d86563SAlexander Pyhalov
130*16d86563SAlexander Pyhalov /**** _ J O H A P 9 2 _ T O _ W A N S U N G ****/
131*16d86563SAlexander Pyhalov
_johap92_to_wansung(unsigned short code)132*16d86563SAlexander Pyhalov static unsigned short _johap92_to_wansung(unsigned short code)
133*16d86563SAlexander Pyhalov {
134*16d86563SAlexander Pyhalov short ci, v, cf;
135*16d86563SAlexander Pyhalov short mask;
136*16d86563SAlexander Pyhalov int disp, i;
137*16d86563SAlexander Pyhalov int ch1, ch2;
138*16d86563SAlexander Pyhalov long cfbit;
139*16d86563SAlexander Pyhalov
140*16d86563SAlexander Pyhalov ch1 = code >> 8;
141*16d86563SAlexander Pyhalov ch2 = code & 0xff;
142*16d86563SAlexander Pyhalov
143*16d86563SAlexander Pyhalov if ((ch1 >= 0x84 && ch1 <= 0xd3) && ((ch2 >= 0x41 && ch2 <= 0x7e) ||
144*16d86563SAlexander Pyhalov (ch2 >= 0x81 && ch2 <= 0xfe))) /* Hangul */
145*16d86563SAlexander Pyhalov {
146*16d86563SAlexander Pyhalov ci = CHOSUNG(code) - 0x02;
147*16d86563SAlexander Pyhalov v = JOONGSUNG(code) - ((unsigned short)(JOONGSUNG(code) - 2) /
148*16d86563SAlexander Pyhalov 8 * 2 + 3);
149*16d86563SAlexander Pyhalov cf = JONGSUNG(code) - (unsigned short)JONGSUNG(code) / 18;
150*16d86563SAlexander Pyhalov
151*16d86563SAlexander Pyhalov if (v < 0)
152*16d86563SAlexander Pyhalov return(0xA4A0 + Y19_32[CHOSUNG(code) - 1]);
153*16d86563SAlexander Pyhalov if (ci < 0)
154*16d86563SAlexander Pyhalov {
155*16d86563SAlexander Pyhalov if (cf <= 1)
156*16d86563SAlexander Pyhalov return(0xA4BF + v);
157*16d86563SAlexander Pyhalov return(ILLEGAL_SEQ);
158*16d86563SAlexander Pyhalov }
159*16d86563SAlexander Pyhalov
160*16d86563SAlexander Pyhalov for (cfbit = cmp_bitmap[ci][v], disp = 0, i = 0; i < cf; i++)
161*16d86563SAlexander Pyhalov {
162*16d86563SAlexander Pyhalov if (cfbit & BIT_MASK)
163*16d86563SAlexander Pyhalov disp++;
164*16d86563SAlexander Pyhalov cfbit >>= 1;
165*16d86563SAlexander Pyhalov }
166*16d86563SAlexander Pyhalov
167*16d86563SAlexander Pyhalov if (!(cfbit & BIT_MASK))
168*16d86563SAlexander Pyhalov return(ILLEGAL_SEQ);
169*16d86563SAlexander Pyhalov
170*16d86563SAlexander Pyhalov code = cmp_srchtbl[ci][v] + disp;
171*16d86563SAlexander Pyhalov mask = cmp_srchtbl[ci][v] & 0xff;
172*16d86563SAlexander Pyhalov if ((mask + disp) > 0xfe)
173*16d86563SAlexander Pyhalov code += SKIP;
174*16d86563SAlexander Pyhalov
175*16d86563SAlexander Pyhalov return(code);
176*16d86563SAlexander Pyhalov }
177*16d86563SAlexander Pyhalov else if ((ch2 >= 0x31 && ch2 <= 0x7e) || (ch2 >= 0x91 && ch2 <= 0xfe))
178*16d86563SAlexander Pyhalov {
179*16d86563SAlexander Pyhalov if (ch1 >= 0xe0 && ch1 <= 0xf9) /* Hanja */
180*16d86563SAlexander Pyhalov {
181*16d86563SAlexander Pyhalov code = (0xca + (ch1 - 0xe0) * 2 + ch2 / 0xa1) << 8;
182*16d86563SAlexander Pyhalov return(code | ((ch2 > 0xa0) ? ch2
183*16d86563SAlexander Pyhalov : ch2 + 0x70 - ((ch2 / 0x91) * 0x12)));
184*16d86563SAlexander Pyhalov }
185*16d86563SAlexander Pyhalov else if (ch1 >= 0xd9 && ch1 <= 0xde) /* Graphic characters */
186*16d86563SAlexander Pyhalov {
187*16d86563SAlexander Pyhalov code = (0xa1 + (ch1 - 0xd9) * 2 + ch2 / 0xa1) << 8;
188*16d86563SAlexander Pyhalov return(code | ((ch2 > 0xa0) ? ch2
189*16d86563SAlexander Pyhalov : ch2 + 0x70 - ((ch2 / 0x91) * 0x12)));
190*16d86563SAlexander Pyhalov }
191*16d86563SAlexander Pyhalov else if (ch1 == 0xd8) /* User definable characters */
192*16d86563SAlexander Pyhalov return((ch2 > 0xa0) ? 0xfe00 | ch2 : 0xc900
193*16d86563SAlexander Pyhalov | (ch2 + 0x70 - ((ch2 / 0x91) * 0x12)));
194*16d86563SAlexander Pyhalov }
195*16d86563SAlexander Pyhalov
196*16d86563SAlexander Pyhalov return(FAILED);
197*16d86563SAlexander Pyhalov } /* end og static unsigned short _johap92_to_wansung(unsigned short). */
198