Bug Summary

File:modules/im/ximcp/imCallbk.c
Location:line 459, column 2
Description:Value stored to 'buf' is never read

Annotated Source Code

1/***********************************************************************
2Copyright 1993 by Digital Equipment Corporation, Maynard, Massachusetts,
3Copyright 1994 by FUJITSU LIMITED
4Copyright 1994 by Sony Corporation
5
6 All Rights Reserved
7
8Permission to use, copy, modify, and distribute this software and its
9documentation for any purpose and without fee is hereby granted,
10provided that the above copyright notice appear in all copies and that
11both that copyright notice and this permission notice appear in
12supporting documentation, and that the names of Digital, FUJITSU
13LIMITED and Sony Corporation not be used in advertising or publicity
14pertaining to distribution of the software without specific, written
15prior permission.
16
17DIGITAL, FUJITSU LIMITED AND SONY CORPORATION DISCLAIMS ALL WARRANTIES
18WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
19MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL DIGITAL, FUJITSU LIMITED
20AND SONY CORPORATION BE LIABLE FOR ANY SPECIAL, INDIRECT OR
21CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
22USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
23OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
24PERFORMANCE OF THIS SOFTWARE.
25
26 Author: Hiroyuki Miyamoto Digital Equipment Corporation
27 miyamoto@jrd.dec.com
28 Modifier: Takashi Fujiwara FUJITSU LIMITED
29 fujiwara@a80.tech.yk.fujitsu.co.jp
30 Makoto Wakamatsu Sony Corporation
31 makoto@sm.sony.co.jp
32
33***********************************************************************/
34
35#ifdef HAVE_CONFIG_H1
36#include <config.h>
37#endif
38#include "Xlibint.h"
39#include "Xlcint.h"
40#include "Ximint.h"
41#include "XlcPubI.h"
42#ifdef X_LOCALE
43#define mblen(a,b) _Xmblen(a,b)
44extern int _Xmblen ();
45#endif
46
47#define sz_CARD81 1
48#define sz_INT81 1
49#define sz_CARD162 2
50#define sz_INT162 2
51#define sz_BITMASK162 sz_CARD162
52#define sz_CARD324 4
53#define sz_INT324 4
54#define sz_BITMASK324 sz_CARD324
55#define sz_XIMIDsizeof(XIMID) sizeof(XIMID)
56#define sz_XICIDsizeof(XICID) sizeof(XICID)
57#define sz_XIMATTRIDsizeof(XIMATTRID) sizeof(XIMATTRID)
58#define sz_XICATTRIDsizeof(XICATTRID) sizeof(XICATTRID)
59#define sz_ximPacketHeader(sizeof(CARD8) + sizeof(CARD8) + sizeof(INT16) + sizeof(XIMID
) + sizeof(XICID)) (XIM_HEADER_SIZEsizeof(CARD8) + sizeof(CARD8) + sizeof(INT16) + sz_XIMIDsizeof(XIMID) + sz_XICIDsizeof(XICID))
60#define sz_ximGeometry0 0
61#define sz_ximStrConversion(4 + 4 + 4 + 4) (sz_CARD324 + sz_CARD324 + sz_CARD324 + sz_CARD324)
62#define sz_ximPreeditStart0 0
63#define sz_ximPreeditStartReply4 sz_INT324
64#define sz_ximPreeditCaret(4 + 4 + 4) (sz_INT324 + sz_CARD324 + sz_CARD324)
65#define sz_ximPreeditCaretReply4 sz_CARD324
66#define sz_ximPreeditDone0 0
67#define sz_ximStatusStart0 0
68#define sz_ximStatusDone0 0
69
70typedef enum {
71 XimCbSuccess,
72 XimCbNoCallback,
73 XimCbError,
74 XimCbQueued,
75 XimCbBadContextID,
76 XimCbBadOpcode
77} XimCbStatus;
78
79typedef XimCbStatus (*XimCb)(
80 Xim, Xic, char*, int
81 );
82
83#define PACKET_TO_MAJOROPCODE(p)(*(CARD8*)((CARD8*)(p))) (*(CARD8*)((CARD8*)(p)))
84#define PACKET_TO_MINOROPCODE(p)(*(CARD8*)((CARD8*)(p) + 1)) (*(CARD8*)((CARD8*)(p) + sz_CARD81))
85#define PACKET_TO_LENGTH(p)(*(CARD16*)((CARD8*)(p) + 1 + 1)) (*(CARD16*)((CARD8*)(p) + sz_CARD81 + sz_CARD81))
86#define PACKET_TO_IMID(p)(*(XIMID*)((CARD8*)(p) + sizeof(CARD8) + sizeof(CARD8) + sizeof
(INT16))) (*(XIMID*)((CARD8*)(p) + XIM_HEADER_SIZEsizeof(CARD8) + sizeof(CARD8) + sizeof(INT16)))
87#define PACKET_TO_ICID(p)(*(XICID*)((CARD8*)(p) + sizeof(CARD8) + sizeof(CARD8) + sizeof
(INT16) + sizeof(XIMID))) (*(XICID*)((CARD8*)(p) + XIM_HEADER_SIZEsizeof(CARD8) + sizeof(CARD8) + sizeof(INT16) + sz_XIMIDsizeof(XIMID)))
88
89#define _XimWriteData(im,len,data)(im->private.proto.write((im),(len),(XPointer)(data))) \
90 (im->private.proto.write((im),(len),(XPointer)(data)))
91#define _XimReadData(im,buf,buf_len,len)(im->private.proto.read((im),(XPointer)(buf),(buf_len),&
(len))) \
92 (im->private.proto.read((im),(XPointer)(buf),(buf_len),&(len)))
93#define _XimFlushData(im)im->private.proto.flush((im)) im->private.proto.flush((im))
94
95Privatestatic XimCbStatus _XimGeometryCallback(Xim, Xic, char*, int);
96Privatestatic XimCbStatus _XimStrConversionCallback(Xim, Xic, char*, int);
97Privatestatic XimCbStatus _XimPreeditStartCallback(Xim, Xic, char*, int);
98Privatestatic XimCbStatus _XimPreeditDoneCallback(Xim, Xic, char*, int);
99Privatestatic void _free_memory_for_text(XIMText*);
100Privatestatic XimCbStatus _XimPreeditDrawCallback(Xim, Xic, char*, int);
101Privatestatic XimCbStatus _XimPreeditCaretCallback(Xim, Xic, char*, int);
102Privatestatic XimCbStatus _XimStatusStartCallback(Xim, Xic, char*, int);
103Privatestatic XimCbStatus _XimStatusDoneCallback(Xim, Xic, char*, int);
104Privatestatic XimCbStatus _XimStatusDrawCallback(Xim, Xic, char*, int);
105Privatestatic XimCbStatus _XimPreeditStateNotifyCallback(Xim, Xic, char *, int);
106
107#if defined(__STDC__1) && ((defined(sun) && defined(SVR4)) || defined(WIN32))
108#define RConstconst /**/
109#else
110#define RConstconst const
111#endif
112
113/* NOTE:
114 * the table below depends on the protocol number
115 * defined in the IM Protocol document.
116 */
117static RConstconst XimCb callback_table[] = {
118 NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), /* #000-009 */
119 NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), /* #010-019 */
120 NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), /* #020-029 */
121 NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), /* #030-039 */
122 NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), /* #040-049 */
123 NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), /* #050-059 */
124 NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), /* #060-069 */
125 _XimGeometryCallback, /* #070 */
126 _XimStrConversionCallback, /* #071 */
127 NULL((void*)0), /* #072 */
128 _XimPreeditStartCallback, /* #073 */
129 NULL((void*)0), /* #074 */
130 _XimPreeditDrawCallback, /* #075 */
131 _XimPreeditCaretCallback, /* #076 */
132 NULL((void*)0), /* #077 */
133 _XimPreeditDoneCallback, /* #078 */
134 _XimStatusStartCallback, /* #079 */
135 _XimStatusDrawCallback, /* #080 */
136 _XimStatusDoneCallback, /* #081 */
137 _XimPreeditStateNotifyCallback /* #082 */
138 };
139
140
141Privatestatic Boolint
142_XimIsReadyForProcess(Xic ic)
143{
144 return(!ic->private.proto.waitCallback); /* check HM */
145}
146
147Privatestatic void
148_XimProcessPendingCallbacks(Xic ic)
149{
150 XimPendingCallback pcbq;
151
152 while (((pcbq = ic->private.proto.pend_cb_que) != (XimPendingCallback)NULL((void*)0))
153 && _XimIsReadyForProcess(ic)) {
154 (void) (*callback_table[pcbq->major_opcode])(pcbq->im,
155 pcbq->ic,
156 pcbq->proto,
157 pcbq->proto_len);
158 ic->private.proto.pend_cb_que = pcbq->next;
159 Xfree(pcbq->proto)free((pcbq->proto)); /* free memory of XimPendingCallback */
160 Xfree(pcbq)free((pcbq));
161 }
162}
163
164Privatestatic void
165_XimPutCbIntoQueue(Xic ic, XimPendingCallback call_data)
166{
167 XimPendingCallback pcbq = ic->private.proto.pend_cb_que;
168
169 /* Queuing is FIFO
170 */
171 while (pcbq != (XimPendingCallback)NULL((void*)0)) {
172 if (pcbq->next == (XimPendingCallback)NULL((void*)0)) {
173 break;
174 }
175 pcbq = pcbq->next;
176 }
177 if (pcbq == (XimPendingCallback)NULL((void*)0)) {
178 ic->private.proto.pend_cb_que = call_data;
179 }
180 else {
181 pcbq->next = call_data;
182 }
183}
184
185Public Boolint
186_XimCbDispatch(Xim xim,
187 INT16 len,
188 XPointer data,
189 XPointer call_data)
190{
191 /* `data' points to the beginning of the packet defined in IM Protocol doc.
192 */
193 int major_opcode = PACKET_TO_MAJOROPCODE(data)(*(CARD8*)((CARD8*)(data)));
194 XIMID imid = PACKET_TO_IMID(data)(*(XIMID*)((CARD8*)(data) + sizeof(CARD8) + sizeof(CARD8) + sizeof
(INT16)));
195 XICID icid = PACKET_TO_ICID(data)(*(XICID*)((CARD8*)(data) + sizeof(CARD8) + sizeof(CARD8) + sizeof
(INT16) + sizeof(XIMID)));
196 Xim im = (Xim)call_data; /* check HM */
197 Xic ic = _XimICOfXICID(im, icid);
198 char* proto;
199 int proto_len;
200
201 /* check validity of im/ic
202 */
203 if ((imid != im->private.proto.imid) || !ic) {
204 return False0; /* status = XimCbBadContextID; */
205 }
206
207 /* process pending callbacks
208 */
209 _XimProcessPendingCallbacks(ic);
210
211 /* check if the protocol should be processed here
212 */
213 if (major_opcode > 82) {
214 return False0; /* status = XimCbBadOpcode; */
215 }
216 if (!callback_table[major_opcode]) {
217 return False0; /* status = XimCbBadOpcode; */
218 }
219
220 /* move the pointer ahead by the IM Protocol packet header size
221 */
222 proto = (char*)data + sz_ximPacketHeader(sizeof(CARD8) + sizeof(CARD8) + sizeof(INT16) + sizeof(XIMID
) + sizeof(XICID));
223 proto_len = (int)len - sz_ximPacketHeader(sizeof(CARD8) + sizeof(CARD8) + sizeof(INT16) + sizeof(XIMID
) + sizeof(XICID));
224
225 /* check if it can be processed right away
226 * and if no, queue the protocol, otherwise invoke a callback
227 */
228 if (!_XimIsReadyForProcess(ic)) {
229
230 /* queue the protocol
231 */
232 XimPendingCallback pcb;
233 char *proto_buf = (proto_len > 0) ? (char*)Xmalloc(proto_len)malloc(((proto_len) == 0 ? 1 : (proto_len))) : NULL((void*)0);
234
235 pcb = (XimPendingCallback)Xmalloc(sizeof(XimPendingCallbackRec))malloc(((sizeof(XimPendingCallbackRec)) == 0 ? 1 : (sizeof(XimPendingCallbackRec
))));
236 if (pcb && (proto_len <= 0 || proto_buf)) {
237 if (proto_len > 0)
238 memcpy(proto_buf, proto, proto_len);
239
240 pcb->major_opcode = major_opcode;
241 pcb->im = im;
242 pcb->ic = ic;
243 pcb->proto = proto_buf;
244 pcb->proto_len = proto_len;
245 pcb->next = (XimPendingCallback)NULL((void*)0); /* queue is FIFO */
246 _XimPutCbIntoQueue(ic, pcb);
247 /* status = XimCbQueued; */
248 } else {
249 /* status = XimCbError; */
250 Xfree(pcb)free((pcb));
251 Xfree(proto_buf)free((proto_buf));
252 }
253 }
254 else {
255 /* invoke each callback according to the major opcode.
256 * `proto' points to the next address of IM-ID and IC-ID.
257 * `proto_len' specifies the packet length.
258 */
259 (void) (*callback_table[major_opcode])(im, ic, proto, proto_len);
260 }
261 return True1;
262}
263
264Privatestatic XimCbStatus
265_XimGeometryCallback(Xim im,
266 Xic ic,
267 char* proto,
268 int len)
269{
270 XICCallback* cb = &ic->core.geometry_callback;
271
272 /* invoke the callack
273 */
274 if (cb && cb->callback) {
275 (*cb->callback)((XIC)ic, cb->client_data, (XPointer)NULL((void*)0));
276 }
277 else {
278
279 /* no callback registered
280 */
281 return XimCbNoCallback;
282 }
283
284 return XimCbSuccess;
285}
286
287Privatestatic XimCbStatus
288_XimStrConversionCallback(Xim im,
289 Xic ic,
290 char* proto,
291 int len)
292{
293 XICCallback* cb = &ic->core.string_conversion_callback; /* check HM */
294 XIMStringConversionCallbackStruct cbrec;
295
296 /* invoke the callback
297 */
298 if (cb && cb->callback) {
299 int p = XIM_HEADER_SIZEsizeof(CARD8) + sizeof(CARD8) + sizeof(INT16);
300 cbrec.position = (XIMStringConversionPosition)
301 *(CARD32*)&proto[p]; p += sz_CARD324;
302 cbrec.direction = (XIMCaretDirection)
303 *(CARD32*)&proto[p]; p += sz_CARD324;
304 cbrec.operation = (XIMStringConversionOperation)
305 *(CARD32*)&proto[p]; p += sz_CARD324;
306 cbrec.factor = (unsigned short)
307 *(CARD32*)&proto[p];
308
309 (*cb->callback)((XIC)ic, cb->client_data, (XPointer)&cbrec);
310 }
311 else {
312
313 /* no callback registered
314 */
315 _XimError(im, ic,
316 (CARD16)XIM_BadSomething999,
317 (INT16)len,
318 (CARD16)XIM_STR_CONVERSION71,
319 (char*)proto); /* send XIM_ERROR */
320 return XimCbNoCallback;
321 }
322
323 /* send a reply
324 */
325 {
326 CARD8 *buf;
327 INT16 buf_len;
328 int p, length_in_bytes, i;
329
330 /* Assumption:
331 * `cbrec.text->length' means the string length in characters
332 */
333 {
334 length_in_bytes = (cbrec.text->encoding_is_wchar)?
335 sizeof(wchar_t) * cbrec.text->length: /* wchar */
336 strlen(cbrec.text->string.mbs); /* mb */
337 buf_len = XIM_HEADER_SIZEsizeof(CARD8) + sizeof(CARD8) + sizeof(INT16) +
338 sz_CARD162 +
339 2 + length_in_bytes +
340 XIM_PAD(2 + length_in_bytes)((4 - ((2 + length_in_bytes) % 4)) % 4) +
341 2 + 2 + sz_CARD324 * cbrec.text->length;
342 buf = (CARD8*)Xmalloc(buf_len)malloc(((buf_len) == 0 ? 1 : (buf_len)));
343 }
344 _XimSetHeader((XPointer)buf, XIM_STR_CONVERSION_REPLY72, 0, &buf_len);
345 buf_len -= XIM_HEADER_SIZEsizeof(CARD8) + sizeof(CARD8) + sizeof(INT16); /* added by _XimSetHeader (HACK) */
346 p = XIM_HEADER_SIZEsizeof(CARD8) + sizeof(CARD8) + sizeof(INT16);
347 *(CARD16*)&buf[p] = (CARD16)im->private.proto.imid; p += sz_CARD162;
348 *(CARD16*)&buf[p] = (CARD16)ic->private.proto.icid; p += sz_CARD162;
349 *(CARD16*)&buf[p] = (CARD16)cbrec.text->length; p += sz_CARD162;
350 memcpy(&buf[p],&cbrec.text->string.mbs,length_in_bytes);
351 p += length_in_bytes;
352 *(CARD16*)&buf[p] = (CARD16)(sz_CARD324*cbrec.text->length);
353 p += XIM_PAD(2)((4 - ((2) % 4)) % 4);
354 for (i = 0; i < (int)cbrec.text->length; i++) {
355 *(CARD32*)&buf[p] = (CARD32)cbrec.text->feedback[i];
356 p += sz_CARD324;
357 }
358
359 if (!(_XimWriteData(im, buf_len, buf)(im->private.proto.write((im),(buf_len),(XPointer)(buf))))) {
360 return XimCbError;
361 }
362 _XimFlushData(im)im->private.proto.flush((im));
363
364 Xfree(buf)free((buf));
365 }
366
367 return XimCbSuccess;
368}
369
370Privatestatic XimCbStatus
371_XimPreeditStartCallback(Xim im,
372 Xic ic,
373 char* proto,
374 int len)
375{
376 XICCallback* cb = &ic->core.preedit_attr.start_callback;
377 int ret;
378
379 /* invoke the callback
380 */
381 if (cb && cb->callback){
382 ret = (*(cb->callback))((XIC)ic, cb->client_data, (XPointer)NULL((void*)0));
383 }
384 else {
385
386 /* no callback registered
387 */
388 _XimError(im, ic,
389 (CARD16)XIM_BadSomething999,
390 (INT16)len,
391 (CARD16)XIM_PREEDIT_START73,
392 (char*)proto); /* send XIM_ERROR */
393 return XimCbNoCallback;
394 }
395
396 /* send a reply
397 */
398 {
399 CARD32 buf32[(sz_ximPacketHeader(sizeof(CARD8) + sizeof(CARD8) + sizeof(INT16) + sizeof(XIMID
) + sizeof(XICID)) + sz_ximPreeditStartReply4) / 4];
400 CARD8 *buf = (CARD8 *)buf32;
401 INT16 buf_len = sz_XIMIDsizeof(XIMID) + sz_XICIDsizeof(XICID) + sz_ximPreeditStartReply4;
402 int p;
403
404 _XimSetHeader((XPointer)buf, XIM_PREEDIT_START_REPLY74, 0, &buf_len);
405 p = XIM_HEADER_SIZEsizeof(CARD8) + sizeof(CARD8) + sizeof(INT16);
406 *(CARD16*)&buf[p] = (CARD16)im->private.proto.imid; p += sz_CARD162;
407 *(CARD16*)&buf[p] = (CARD16)ic->private.proto.icid; p += sz_CARD162;
408 *(INT32*)&buf[p] = (INT32)ret;
409
410 if (!(_XimWriteData(im, buf_len, buf)(im->private.proto.write((im),(buf_len),(XPointer)(buf))))) {
411 return XimCbError;
412 }
413 _XimFlushData(im)im->private.proto.flush((im));
414 }
415
416 return XimCbSuccess;
417}
418
419Privatestatic XimCbStatus
420_XimPreeditDoneCallback(Xim im,
421 Xic ic,
422 char* proto,
423 int len)
424{
425 XICCallback* cb = &ic->core.preedit_attr.done_callback;
426
427 /* invoke the callback
428 */
429 if (cb && cb->callback) {
430 (*cb->callback)((XIC)ic, cb->client_data, (XPointer)NULL((void*)0));
431 }
432 else {
433
434 /* no callback registered
435 */
436 return XimCbNoCallback;
437 }
438
439 return XimCbSuccess;
440}
441
442Privatestatic void
443_read_text_from_packet(Xim im,
444 char* buf,
445 XIMText** text_ptr)
446{
447 int status;
448 XIMText* text;
449 int tmp_len;
450 char* tmp_buf;
451 Statusint s = 0;
452
453 status = (int)*(BITMASK32*)buf; buf += sz_BITMASK324;
454
455 /* string part
456 */
457 if (status & 0x00000001) /* "no string" bit on */ {
458 buf += sz_CARD162; /* skip "length of preedit string" */
459 buf += 2; /* pad */
Value stored to 'buf' is never read
460 *text_ptr = (XIMText*)NULL((void*)0);
461 return;
462 }
463
464 *text_ptr = text = (XIMText*)Xmalloc(sizeof(XIMText))malloc(((sizeof(XIMText)) == 0 ? 1 : (sizeof(XIMText))));
465 if (text == (XIMText*)NULL((void*)0)) return;
466
467 tmp_len = (int)*(CARD16*)buf;
468 buf += sz_CARD162;
469 if ((tmp_buf = (char*)Xmalloc(tmp_len + 1)malloc(((tmp_len + 1) == 0 ? 1 : (tmp_len + 1))))) {
470 memcpy(tmp_buf, buf, tmp_len);
471 tmp_buf[tmp_len] = '\0';
472
473 text->encoding_is_wchar = False0;
474 text->length = im->methods->ctstombs((XIM)im,
475 tmp_buf, tmp_len,
476 NULL((void*)0), 0, &s); /* CT? HM */
477 if (s != XLookupNone1) {
478#ifndef NO_DEC_I18N_FIX
479 /* Allow for NULL-terminated */
480 if ((text->string.multi_byte =
481 (char*)Xmalloc(text->length *malloc(((text->length * (((XLCdPublic) im->core.lcd->
core)->pub.mb_cur_max) + 1) == 0 ? 1 : (text->length * (
((XLCdPublic) im->core.lcd->core)->pub.mb_cur_max) +
1)))
482 XLC_PUBLIC(im->core.lcd,mb_cur_max) + 1)malloc(((text->length * (((XLCdPublic) im->core.lcd->
core)->pub.mb_cur_max) + 1) == 0 ? 1 : (text->length * (
((XLCdPublic) im->core.lcd->core)->pub.mb_cur_max) +
1))))) {
483#else
484 if (text->string.multi_byte = (char*)Xmalloc(text->length+1)malloc(((text->length+1) == 0 ? 1 : (text->length+1)))) {
485#endif
486 int tmp;
487#ifndef NO_DEC_I18N_FIX
488 char *char_tmp;
489 int char_len;
490#endif
491 tmp = im->methods->ctstombs((XIM)im,
492 tmp_buf, tmp_len,
493#ifndef NO_DEC_I18N_FIX
494 text->string.multi_byte,
495 text->length * XLC_PUBLIC(im->core.lcd,mb_cur_max)(((XLCdPublic) im->core.lcd->core)->pub.mb_cur_max) + 1,
496#else
497 text->string.multi_byte, text->length,
498#endif
499 &s);
500 text->string.multi_byte[tmp] = '\0';
501#ifndef NO_DEC_I18N_FIX
502 text->length = 0;
503 char_tmp = text->string.multi_byte;
504 while (*char_tmp != '\0') {
505 char_len = mblen(char_tmp, strlen(char_tmp));
506 char_tmp = char_tmp + char_len;
507 (text->length)++;
508 }
509#endif
510 }
511 }
512 else {
513 text->length = 0;
514 text->string.multi_byte = NULL((void*)0);
515 }
516
517 Xfree(tmp_buf)free((tmp_buf));
518 }
519 buf += tmp_len;
520
521 buf += XIM_PAD(sz_CARD16 + tmp_len)((4 - ((2 + tmp_len) % 4)) % 4); /* pad */
522
523 /* feedback part
524 */
525 if (status & 0x00000002) /* "no feedback" bit on */ {
526 text->feedback = (XIMFeedback*)NULL((void*)0);
527 }
528 else {
529 int i, j;
530
531 i = (int)*(CARD16*)buf; buf += sz_CARD162;
532 buf += sz_CARD162; /* skip `unused' */
533 text->feedback = (XIMFeedback*)Xmalloc(i*(sizeof(XIMFeedback)/sizeof(CARD32)))malloc(((i*(sizeof(XIMFeedback)/sizeof(CARD32))) == 0 ? 1 : (
i*(sizeof(XIMFeedback)/sizeof(CARD32)))));
534 j = 0;
535 while (i > 0) {
536 text->feedback[j] = (XIMFeedback)*(CARD32*)buf;
537 buf += sz_CARD324;
538 i -= sz_CARD324;
539 j++;
540 }
541 /*
542 * text->length tells how long both the status string and
543 * the feedback array are. If there's "no string" the
544 * text->length was set to zero previously. See above.
545 * But if there is feedback (i.e. not "no feedback") then
546 * we need to convey the length of the feedback array.
547 * It might have been better if the protocol sent two
548 * different values, one for the length of the status
549 * string and one for the length of the feedback array.
550 */
551 if (status & 0x00000001) /* "no string" bit on */ {
552 text->length = j;
553 }
554 }
555}
556
557Privatestatic void
558_free_memory_for_text(XIMText* text)
559{
560 if (text) {
561 if (text->string.multi_byte)
562 Xfree(text->string.multi_byte)free((text->string.multi_byte));
563 if (text->feedback)
564 Xfree(text->feedback)free((text->feedback));
565 Xfree(text)free((text));
566 }
567}
568
569Privatestatic XimCbStatus
570_XimPreeditDrawCallback(Xim im,
571 Xic ic,
572 char* proto,
573 int len)
574{
575 XICCallback* cb = &ic->core.preedit_attr.draw_callback;
576 XIMPreeditDrawCallbackStruct cbs;
577
578 /* invoke the callback
579 */
580 if (cb && cb->callback) {
581 cbs.caret = (int)*(INT32*)proto; proto += sz_INT324;
582 cbs.chg_first = (int)*(INT32*)proto; proto += sz_INT324;
583 cbs.chg_length = (int)*(INT32*)proto; proto += sz_INT324;
584 _read_text_from_packet(im, proto, &cbs.text);
585
586 (*cb->callback)((XIC)ic, cb->client_data, (XPointer)&cbs);
587
588 _free_memory_for_text((XIMText*)cbs.text);
589 }
590 else {
591
592 /* no callback registered
593 */
594 return XimCbNoCallback;
595 }
596
597 return XimCbSuccess;
598}
599
600Privatestatic XimCbStatus
601_XimPreeditCaretCallback(Xim im,
602 Xic ic,
603 char* proto,
604 int len)
605{
606 XICCallback* cb = &ic->core.preedit_attr.caret_callback;
607 XIMPreeditCaretCallbackStruct cbs;
608
609 /* invoke the callback
610 */
611 if (cb && cb->callback) {
612 cbs.position = (int)*(INT32*)proto; proto += sz_INT324;
613 cbs.direction = (XIMCaretDirection)*(CARD32*)proto; proto += sz_CARD324;
614 cbs.style = (XIMCaretStyle)*(CARD32*)proto; proto += sz_CARD324;
615
616 (*cb->callback)((XIC)ic, cb->client_data, (XPointer)&cbs);
617 }
618 else {
619
620 /* no callback registered
621 */
622 _XimError(im, ic,
623 (CARD16)XIM_BadSomething999,
624 (INT16)len,
625 (CARD16)XIM_PREEDIT_CARET76,
626 (char*)proto); /* send XIM_ERROR */
627 return XimCbNoCallback;
628 }
629
630 /* Send a reply
631 */
632 {
633 CARD8 buf[sz_ximPacketHeader(sizeof(CARD8) + sizeof(CARD8) + sizeof(INT16) + sizeof(XIMID
) + sizeof(XICID)) + sz_ximPreeditCaretReply4];
634 INT16 len = sz_XIMIDsizeof(XIMID) + sz_XICIDsizeof(XICID) + sz_ximPreeditCaretReply4;
635 int p;
636
637 _XimSetHeader((XPointer)buf, XIM_PREEDIT_CARET_REPLY77, 0, &len);
638 p = XIM_HEADER_SIZEsizeof(CARD8) + sizeof(CARD8) + sizeof(INT16);
639 *(CARD16*)&buf[p] = (CARD16)im->private.proto.imid; p += sz_CARD162;
640 *(CARD16*)&buf[p] = (CARD16)ic->private.proto.icid; p += sz_CARD162;
641 *(CARD32*)&buf[p] = (CARD32)cbs.position;
642
643 if (!(_XimWriteData(im, len, buf)(im->private.proto.write((im),(len),(XPointer)(buf))))) {
644 return XimCbError;
645 }
646 _XimFlushData(im)im->private.proto.flush((im));
647 }
648
649 return XimCbSuccess;
650}
651
652Privatestatic XimCbStatus
653_XimStatusStartCallback(Xim im,
654 Xic ic,
655 char* proto,
656 int len)
657{
658 XICCallback* cb = &ic->core.status_attr.start_callback;
659
660 /* invoke the callback
661 */
662 if (cb && cb->callback) {
663 (*cb->callback)((XIC)ic, cb->client_data, (XPointer)NULL((void*)0));
664 }
665 else {
666
667 /* no callback registered
668 */
669 return XimCbNoCallback;
670 }
671
672 return XimCbSuccess;
673}
674
675Privatestatic XimCbStatus
676_XimStatusDoneCallback(Xim im,
677 Xic ic,
678 char* proto,
679 int len)
680{
681 XICCallback* cb = &ic->core.status_attr.done_callback;
682
683 /* invoke the callback
684 */
685 if (cb && cb->callback) {
686 (*cb->callback)((XIC)ic, cb->client_data, (XPointer)NULL((void*)0));
687 }
688 else {
689
690 /* no callback registered
691 */
692 return XimCbNoCallback;
693 }
694
695 return XimCbSuccess;
696}
697
698Privatestatic XimCbStatus
699_XimStatusDrawCallback(Xim im,
700 Xic ic,
701 char* proto,
702 int len)
703{
704 XICCallback* cb = &ic->core.status_attr.draw_callback;
705 XIMStatusDrawCallbackStruct cbs;
706
707 /* invoke the callback
708 */
709 if (cb && cb->callback) {
710 cbs.type = (XIMStatusDataType)*(CARD32*)proto; proto += sz_CARD324;
711 if (cbs.type == XIMTextType) {
712 _read_text_from_packet(im, proto, &cbs.data.text);
713 }
714 else if (cbs.type == XIMBitmapType) {
715 cbs.data.bitmap = (Pixmap)*(CARD32*)proto;
716 }
717
718 (*cb->callback)((XIC)ic, cb->client_data, (XPointer)&cbs);
719
720 if (cbs.type == XIMTextType)
721 _free_memory_for_text((XIMText *)cbs.data.text);
722 }
723 else {
724
725 /* no callback registered
726 */
727 return XimCbNoCallback;
728 }
729
730 return XimCbSuccess;
731}
732
733Privatestatic XimCbStatus
734_XimPreeditStateNotifyCallback( Xim im, Xic ic, char* proto, int len )
735{
736 XICCallback *cb = &ic->core.preedit_attr.state_notify_callback;
737
738 /* invoke the callack
739 */
740 if( cb && cb->callback ) {
741 XIMPreeditStateNotifyCallbackStruct cbrec;
742
743 cbrec.state = *(BITMASK32 *)proto;
744 (*cb->callback)( (XIC)ic, cb->client_data, (XPointer)&cbrec );
745 }
746 else {
747 /* no callback registered
748 */
749 return XimCbNoCallback;
750 }
751
752 return XimCbSuccess;
753}
754