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 1997-2004 Sun Microsystems, Inc. All rights reserved.
23*16d86563SAlexander Pyhalov * Use is subject to license terms.
24*16d86563SAlexander Pyhalov */
25*16d86563SAlexander Pyhalov
26*16d86563SAlexander Pyhalov
27*16d86563SAlexander Pyhalov #include <stdio.h>
28*16d86563SAlexander Pyhalov #include <stdlib.h>
29*16d86563SAlexander Pyhalov #include <errno.h>
30*16d86563SAlexander Pyhalov #include <euc.h>
31*16d86563SAlexander Pyhalov #include "japanese.h"
32*16d86563SAlexander Pyhalov #include "jfp_iconv_unicode.h"
33*16d86563SAlexander Pyhalov
34*16d86563SAlexander Pyhalov #ifdef RFC1468_MODE
35*16d86563SAlexander Pyhalov #define JFP_U2E_ICONV_RFC1468
36*16d86563SAlexander Pyhalov #else
37*16d86563SAlexander Pyhalov #define JFP_U2E_ICONV
38*16d86563SAlexander Pyhalov #endif
39*16d86563SAlexander Pyhalov #include "jfp_ucs2_to_euc16.h"
40*16d86563SAlexander Pyhalov
41*16d86563SAlexander Pyhalov #define DEF_SINGLE '?'
42*16d86563SAlexander Pyhalov
43*16d86563SAlexander Pyhalov /*
44*16d86563SAlexander Pyhalov * struct _cv_state; to keep status
45*16d86563SAlexander Pyhalov */
46*16d86563SAlexander Pyhalov struct _icv_state {
47*16d86563SAlexander Pyhalov int _st_cset;
48*16d86563SAlexander Pyhalov };
49*16d86563SAlexander Pyhalov
50*16d86563SAlexander Pyhalov void *
_icv_open(void)51*16d86563SAlexander Pyhalov _icv_open(void)
52*16d86563SAlexander Pyhalov {
53*16d86563SAlexander Pyhalov struct _icv_state *st;
54*16d86563SAlexander Pyhalov
55*16d86563SAlexander Pyhalov if ((st = (struct _icv_state *)
56*16d86563SAlexander Pyhalov malloc(sizeof (struct _icv_state))) == NULL)
57*16d86563SAlexander Pyhalov return ((void *)-1);
58*16d86563SAlexander Pyhalov
59*16d86563SAlexander Pyhalov st->_st_cset = CS_0;
60*16d86563SAlexander Pyhalov
61*16d86563SAlexander Pyhalov return (st);
62*16d86563SAlexander Pyhalov }
63*16d86563SAlexander Pyhalov
64*16d86563SAlexander Pyhalov void
_icv_close(void * cd)65*16d86563SAlexander Pyhalov _icv_close(void *cd)
66*16d86563SAlexander Pyhalov {
67*16d86563SAlexander Pyhalov if (cd == NULL) {
68*16d86563SAlexander Pyhalov errno = EBADF;
69*16d86563SAlexander Pyhalov } else {
70*16d86563SAlexander Pyhalov free(cd);
71*16d86563SAlexander Pyhalov }
72*16d86563SAlexander Pyhalov return;
73*16d86563SAlexander Pyhalov }
74*16d86563SAlexander Pyhalov
75*16d86563SAlexander Pyhalov size_t
_icv_iconv(void * cd,char ** inbuf,size_t * inbytesleft,char ** outbuf,size_t * outbytesleft)76*16d86563SAlexander Pyhalov _icv_iconv(void *cd, char **inbuf, size_t *inbytesleft,
77*16d86563SAlexander Pyhalov char **outbuf, size_t *outbytesleft)
78*16d86563SAlexander Pyhalov {
79*16d86563SAlexander Pyhalov unsigned char ic;
80*16d86563SAlexander Pyhalov size_t rv = (size_t)0;
81*16d86563SAlexander Pyhalov unsigned int ucs4;
82*16d86563SAlexander Pyhalov unsigned short euc16;
83*16d86563SAlexander Pyhalov
84*16d86563SAlexander Pyhalov struct _icv_state *st = (struct _icv_state *)cd;
85*16d86563SAlexander Pyhalov int cset;
86*16d86563SAlexander Pyhalov
87*16d86563SAlexander Pyhalov unsigned char *ip;
88*16d86563SAlexander Pyhalov size_t ileft;
89*16d86563SAlexander Pyhalov char *op;
90*16d86563SAlexander Pyhalov size_t oleft;
91*16d86563SAlexander Pyhalov
92*16d86563SAlexander Pyhalov /*
93*16d86563SAlexander Pyhalov * If inbuf and/or *inbuf are NULL, reset conversion descriptor
94*16d86563SAlexander Pyhalov * and put escape sequence if needed.
95*16d86563SAlexander Pyhalov */
96*16d86563SAlexander Pyhalov if ((inbuf == NULL) || (*inbuf == NULL)) {
97*16d86563SAlexander Pyhalov if (st->_st_cset != CS_0) {
98*16d86563SAlexander Pyhalov if ((outbuf != NULL) && (*outbuf != NULL)
99*16d86563SAlexander Pyhalov && (outbytesleft != NULL)) {
100*16d86563SAlexander Pyhalov op = (char *)*outbuf;
101*16d86563SAlexander Pyhalov oleft = *outbytesleft;
102*16d86563SAlexander Pyhalov NPUT(ESC, "RESET-SEQ-ESC");
103*16d86563SAlexander Pyhalov NPUT(SBTOG0_1, "RESET-SEQ-1");
104*16d86563SAlexander Pyhalov NPUT(F_X0201_RM, "RESET-SEQ-2");
105*16d86563SAlexander Pyhalov *outbuf = (char *)op;
106*16d86563SAlexander Pyhalov *outbytesleft = oleft;
107*16d86563SAlexander Pyhalov }
108*16d86563SAlexander Pyhalov st->_st_cset = CS_0;
109*16d86563SAlexander Pyhalov }
110*16d86563SAlexander Pyhalov return ((size_t)0);
111*16d86563SAlexander Pyhalov }
112*16d86563SAlexander Pyhalov
113*16d86563SAlexander Pyhalov cset = st->_st_cset;
114*16d86563SAlexander Pyhalov
115*16d86563SAlexander Pyhalov ip = (unsigned char *)*inbuf;
116*16d86563SAlexander Pyhalov ileft = *inbytesleft;
117*16d86563SAlexander Pyhalov op = *outbuf;
118*16d86563SAlexander Pyhalov oleft = *outbytesleft;
119*16d86563SAlexander Pyhalov
120*16d86563SAlexander Pyhalov while (ileft != 0) {
121*16d86563SAlexander Pyhalov if (utf8_ucs(&ucs4, &ip, &ileft) == (size_t)-1) {
122*16d86563SAlexander Pyhalov /* errno has been set in utf8_ucs() */
123*16d86563SAlexander Pyhalov rv = (size_t)-1;
124*16d86563SAlexander Pyhalov goto ret;
125*16d86563SAlexander Pyhalov }
126*16d86563SAlexander Pyhalov
127*16d86563SAlexander Pyhalov if (ucs4 > 0xffff) {
128*16d86563SAlexander Pyhalov /* non-BMP */
129*16d86563SAlexander Pyhalov if (cset != CS_0) {
130*16d86563SAlexander Pyhalov NPUT(ESC, "CS0-SEQ-ESC");
131*16d86563SAlexander Pyhalov NPUT(SBTOG0_1, "CS0-SEQ-1");
132*16d86563SAlexander Pyhalov NPUT(F_X0201_RM, "CS0-SEQ-2");
133*16d86563SAlexander Pyhalov cset = CS_0;
134*16d86563SAlexander Pyhalov }
135*16d86563SAlexander Pyhalov ic = (unsigned char)DEF_SINGLE;
136*16d86563SAlexander Pyhalov NPUT(ic, "DEF for non-BMP(replaced)");
137*16d86563SAlexander Pyhalov } else {
138*16d86563SAlexander Pyhalov euc16 = _jfp_ucs2_to_euc16((unsigned short)ucs4);
139*16d86563SAlexander Pyhalov
140*16d86563SAlexander Pyhalov switch (euc16 & 0x8080) {
141*16d86563SAlexander Pyhalov case 0x0000: /* CS0 */
142*16d86563SAlexander Pyhalov if (cset != CS_0) {
143*16d86563SAlexander Pyhalov NPUT(ESC, "CS0-SEQ-ESC");
144*16d86563SAlexander Pyhalov NPUT(SBTOG0_1, "CS0-SEQ-1");
145*16d86563SAlexander Pyhalov NPUT(F_X0201_RM, "CS0-SEQ-2");
146*16d86563SAlexander Pyhalov cset = CS_0;
147*16d86563SAlexander Pyhalov }
148*16d86563SAlexander Pyhalov ic = (unsigned char)euc16;
149*16d86563SAlexander Pyhalov NPUT(ic, "CS0-1");
150*16d86563SAlexander Pyhalov break;
151*16d86563SAlexander Pyhalov case 0x8080: /* CS1 */
152*16d86563SAlexander Pyhalov if (cset != CS_1) {
153*16d86563SAlexander Pyhalov NPUT(ESC, "CS1-SEQ-ESC");
154*16d86563SAlexander Pyhalov NPUT(MBTOG0_1, "CS1-SEQ-1");
155*16d86563SAlexander Pyhalov NPUT(F_X0208_83_90, "CS1-SEQ-2");
156*16d86563SAlexander Pyhalov cset = CS_1;
157*16d86563SAlexander Pyhalov }
158*16d86563SAlexander Pyhalov ic = (unsigned char)((euc16 >> 8) & CMASK);
159*16d86563SAlexander Pyhalov NPUT(ic, "CS1-1");
160*16d86563SAlexander Pyhalov ic = (unsigned char)(euc16 & CMASK);
161*16d86563SAlexander Pyhalov NPUT(ic, "CS1-2");
162*16d86563SAlexander Pyhalov break;
163*16d86563SAlexander Pyhalov case 0x0080: /* CS2 */
164*16d86563SAlexander Pyhalov #ifdef RFC1468_MODE /* Substitute JIS X 0208 for JIS X 0201 Katakana */
165*16d86563SAlexander Pyhalov if (cset != CS_1) {
166*16d86563SAlexander Pyhalov NPUT(ESC, "CS2-SEQ-ESC(fullsized)");
167*16d86563SAlexander Pyhalov NPUT(MBTOG0_1, "CS2-SEQ-1(fullsized)");
168*16d86563SAlexander Pyhalov NPUT(F_X0208_83_90,
169*16d86563SAlexander Pyhalov "CS2-SEQ-2(fullsized)");
170*16d86563SAlexander Pyhalov cset = CS_1;
171*16d86563SAlexander Pyhalov }
172*16d86563SAlexander Pyhalov euc16 = halfkana2zenkakuj[euc16 - 0xa1];
173*16d86563SAlexander Pyhalov ic = (unsigned char)((euc16 >> 8) & CMASK);
174*16d86563SAlexander Pyhalov NPUT(ic, "CS2-1(fullsized)");
175*16d86563SAlexander Pyhalov ic = (unsigned char)(euc16 & CMASK);
176*16d86563SAlexander Pyhalov NPUT(ic, "CS2-2(fullsized)");
177*16d86563SAlexander Pyhalov #else /* ISO-2022-JP.UIOSF */
178*16d86563SAlexander Pyhalov if (cset != CS_2) {
179*16d86563SAlexander Pyhalov NPUT(ESC, "CS2-SEQ-ESC");
180*16d86563SAlexander Pyhalov NPUT(SBTOG0_1, "CS2-SEQ-1");
181*16d86563SAlexander Pyhalov NPUT(F_X0201_KN, "CS2-SEQ-2");
182*16d86563SAlexander Pyhalov cset = CS_2;
183*16d86563SAlexander Pyhalov }
184*16d86563SAlexander Pyhalov ic = (unsigned char)euc16;
185*16d86563SAlexander Pyhalov NPUT(ic & CMASK, "CS2-1");
186*16d86563SAlexander Pyhalov #endif /* RFC1468_MODE */
187*16d86563SAlexander Pyhalov break;
188*16d86563SAlexander Pyhalov case 0x8000: /* CS3 */
189*16d86563SAlexander Pyhalov if (cset != CS_3) {
190*16d86563SAlexander Pyhalov NPUT(ESC, "CS3-SEQ-ESC");
191*16d86563SAlexander Pyhalov NPUT(MBTOG0_1, "CS3-SEQ-1");
192*16d86563SAlexander Pyhalov NPUT(MBTOG0_2, "CS3-SEQ-2");
193*16d86563SAlexander Pyhalov NPUT(F_X0212_90, "CS3-SEQ-3");
194*16d86563SAlexander Pyhalov cset = CS_3;
195*16d86563SAlexander Pyhalov }
196*16d86563SAlexander Pyhalov ic = (unsigned char)((euc16 >> 8) & CMASK);
197*16d86563SAlexander Pyhalov NPUT(ic, "CS3-1");
198*16d86563SAlexander Pyhalov ic = (unsigned char)(euc16 & CMASK);
199*16d86563SAlexander Pyhalov NPUT(ic, "CS3-2");
200*16d86563SAlexander Pyhalov break;
201*16d86563SAlexander Pyhalov }
202*16d86563SAlexander Pyhalov }
203*16d86563SAlexander Pyhalov
204*16d86563SAlexander Pyhalov /*
205*16d86563SAlexander Pyhalov * One character successfully converted so update
206*16d86563SAlexander Pyhalov * values outside of this function's stack.
207*16d86563SAlexander Pyhalov */
208*16d86563SAlexander Pyhalov *inbuf = (char *)ip;
209*16d86563SAlexander Pyhalov *inbytesleft = ileft;
210*16d86563SAlexander Pyhalov *outbuf = op;
211*16d86563SAlexander Pyhalov *outbytesleft = oleft;
212*16d86563SAlexander Pyhalov
213*16d86563SAlexander Pyhalov st->_st_cset = cset;
214*16d86563SAlexander Pyhalov }
215*16d86563SAlexander Pyhalov
216*16d86563SAlexander Pyhalov ret:
217*16d86563SAlexander Pyhalov
218*16d86563SAlexander Pyhalov #if defined(DEBUG)
219*16d86563SAlexander Pyhalov if (rv == (size_t)-1) {
220*16d86563SAlexander Pyhalov fprintf(stderr, "DEBUG: errno=%d: %s\n", errno, debugmsg);
221*16d86563SAlexander Pyhalov }
222*16d86563SAlexander Pyhalov #endif /* DEBUG */
223*16d86563SAlexander Pyhalov
224*16d86563SAlexander Pyhalov /*
225*16d86563SAlexander Pyhalov * Return value for successful return is not defined by XPG
226*16d86563SAlexander Pyhalov * so return same as *inbytesleft as existing codes do.
227*16d86563SAlexander Pyhalov */
228*16d86563SAlexander Pyhalov return ((rv == (size_t)-1) ? rv : *inbytesleft);
229*16d86563SAlexander Pyhalov }
230