Mercurial > pidgin3 / file comparison

comparison: src/protocols/gg/lib/dcc.c

src/protocols/gg/lib/dcc.c

changeset 11360
b77fd5a8959a
child 11546
acb5676e57bb
equal deleted inserted replaced
11359:9630f62029f2 11360:b77fd5a8959a
1 /* $Id: dcc.c 13582 2005-08-28 22:46:01Z boler $ */
2
3 /*
4 * (C) Copyright 2001-2002 Wojtek Kaniewski <wojtekka@irc.pl>
5 * Tomasz Chiliński <chilek@chilan.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU Lesser General Public License Version
9 * 2.1 as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307,
19 * USA.
20 */
21
22 #include <sys/types.h>
23 #include <sys/stat.h>
24 #include <sys/ioctl.h>
25 #include <sys/socket.h>
26 #include <netinet/in.h>
27 #include <arpa/inet.h>
28 #ifdef sun
29 # include <sys/filio.h>
30 #endif
31
32 #include <ctype.h>
33 #include <errno.h>
34 #include <fcntl.h>
35 #include <stdarg.h>
36 #include <string.h>
37 #include <stdio.h>
38 #include <stdlib.h>
39 #include <unistd.h>
40
41 #include "compat.h"
42 #include "libgadu.h"
43
44 #ifndef GG_DEBUG_DISABLE
45 /*
46 * gg_dcc_debug_data() // funkcja wewnętrzna
47 *
48 * wyświetla zrzut pakietu w hexie.
49 *
50 * - prefix - prefiks zrzutu pakietu
51 * - fd - deskryptor gniazda
52 * - buf - bufor z danymi
53 * - size - rozmiar danych
54 */
55 static void gg_dcc_debug_data(const char *prefix, int fd, const void *buf, unsigned int size)
56 {
57 unsigned int i;
58
59 gg_debug(GG_DEBUG_MISC, "++ gg_dcc %s (fd=%d,len=%d)", prefix, fd, size);
60
61 for (i = 0; i < size; i++)
62 gg_debug(GG_DEBUG_MISC, " %.2x", ((unsigned char*) buf)[i]);
63
64 gg_debug(GG_DEBUG_MISC, "\n");
65 }
66 #else
67 #define gg_dcc_debug_data(a,b,c,d) do { } while (0)
68 #endif
69
70 /*
71 * gg_dcc_request()
72 *
73 * wysyła informację o tym, że dany klient powinien się z nami połączyć.
74 * wykorzystywane, kiedy druga strona, której chcemy coś wysłać jest za
75 * maskaradą.
76 *
77 * - sess - struktura opisująca sesję GG
78 * - uin - numerek odbiorcy
79 *
80 * patrz gg_send_message_ctcp().
81 */
82 int gg_dcc_request(struct gg_session *sess, uin_t uin)
83 {
84 return gg_send_message_ctcp(sess, GG_CLASS_CTCP, uin, "\002", 1);
85 }
86
87 /*
88 * gg_dcc_fill_filetime() // funkcja wewnętrzna
89 *
90 * zamienia czas w postaci unixowej na windowsowy.
91 *
92 * - unix - czas w postaci unixowej
93 * - filetime - czas w postaci windowsowej
94 */
95 void gg_dcc_fill_filetime(uint32_t ut, uint32_t *ft)
96 {
97 #ifdef __GG_LIBGADU_HAVE_LONG_LONG
98 unsigned long long tmp;
99
100 tmp = ut;
101 tmp += 11644473600LL;
102 tmp *= 10000000LL;
103
104 #ifndef __GG_LIBGADU_BIGENDIAN
105 ft[0] = (uint32_t) tmp;
106 ft[1] = (uint32_t) (tmp >> 32);
107 #else
108 ft[0] = gg_fix32((uint32_t) (tmp >> 32));
109 ft[1] = gg_fix32((uint32_t) tmp);
110 #endif
111
112 #endif
113 }
114
115 /*
116 * gg_dcc_fill_file_info()
117 *
118 * wypełnia pola struct gg_dcc niezbędne do wysłania pliku.
119 *
120 * - d - struktura opisująca połączenie DCC
121 * - filename - nazwa pliku
122 *
123 * 0, -1.
124 */
125 int gg_dcc_fill_file_info(struct gg_dcc *d, const char *filename)
126 {
127 return gg_dcc_fill_file_info2(d, filename, filename);
128 }
129
130 /*
131 * gg_dcc_fill_file_info2()
132 *
133 * wypełnia pola struct gg_dcc niezbędne do wysłania pliku.
134 *
135 * - d - struktura opisująca połączenie DCC
136 * - filename - nazwa pliku
137 * - local_filename - nazwa na lokalnym systemie plików
138 *
139 * 0, -1.
140 */
141 int gg_dcc_fill_file_info2(struct gg_dcc *d, const char *filename, const char *local_filename)
142 {
143 struct stat st;
144 const char *name, *ext, *p;
145 unsigned char *q;
146 int i, j;
147
148 gg_debug(GG_DEBUG_FUNCTION, "** gg_dcc_fill_file_info2(%p, \"%s\", \"%s\");\n", d, filename, local_filename);
149
150 if (!d || d->type != GG_SESSION_DCC_SEND) {
151 gg_debug(GG_DEBUG_MISC, "// gg_dcc_fill_file_info2() invalid arguments\n");
152 errno = EINVAL;
153 return -1;
154 }
155
156 if (stat(local_filename, &st) == -1) {
157 gg_debug(GG_DEBUG_MISC, "// gg_dcc_fill_file_info2() stat() failed (%s)\n", strerror(errno));
158 return -1;
159 }
160
161 if ((st.st_mode & S_IFDIR)) {
162 gg_debug(GG_DEBUG_MISC, "// gg_dcc_fill_file_info2() that's a directory\n");
163 errno = EINVAL;
164 return -1;
165 }
166
167 if ((d->file_fd = open(local_filename, O_RDONLY)) == -1) {
168 gg_debug(GG_DEBUG_MISC, "// gg_dcc_fill_file_info2() open() failed (%s)\n", strerror(errno));
169 return -1;
170 }
171
172 memset(&d->file_info, 0, sizeof(d->file_info));
173
174 if (!(st.st_mode & S_IWUSR))
175 d->file_info.mode |= gg_fix32(GG_DCC_FILEATTR_READONLY);
176
177 gg_dcc_fill_filetime(st.st_atime, d->file_info.atime);
178 gg_dcc_fill_filetime(st.st_mtime, d->file_info.mtime);
179 gg_dcc_fill_filetime(st.st_ctime, d->file_info.ctime);
180
181 d->file_info.size = gg_fix32(st.st_size);
182 d->file_info.mode = gg_fix32(0x20); /* FILE_ATTRIBUTE_ARCHIVE */
183
184 if (!(name = strrchr(filename, '/')))
185 name = filename;
186 else
187 name++;
188
189 if (!(ext = strrchr(name, '.')))
190 ext = name + strlen(name);
191
192 for (i = 0, p = name; i < 8 && p < ext; i++, p++)
193 d->file_info.short_filename[i] = toupper(name[i]);
194
195 if (i == 8 && p < ext) {
196 d->file_info.short_filename[6] = '~';
197 d->file_info.short_filename[7] = '1';
198 }
199
200 if (strlen(ext) > 0) {
201 for (j = 0; *ext && j < 4; j++, p++)
202 d->file_info.short_filename[i + j] = toupper(ext[j]);
203 }
204
205 for (q = d->file_info.short_filename; *q; q++) {
206 if (*q == 185) {
207 *q = 165;
208 } else if (*q == 230) {
209 *q = 198;
210 } else if (*q == 234) {
211 *q = 202;
212 } else if (*q == 179) {
213 *q = 163;
214 } else if (*q == 241) {
215 *q = 209;
216 } else if (*q == 243) {
217 *q = 211;
218 } else if (*q == 156) {
219 *q = 140;
220 } else if (*q == 159) {
221 *q = 143;
222 } else if (*q == 191) {
223 *q = 175;
224 }
225 }
226
227 gg_debug(GG_DEBUG_MISC, "// gg_dcc_fill_file_info2() short name \"%s\", dos name \"%s\"\n", name, d->file_info.short_filename);
228 strncpy(d->file_info.filename, name, sizeof(d->file_info.filename) - 1);
229
230 return 0;
231 }
232
233 /*
234 * gg_dcc_transfer() // funkcja wewnętrzna
235 *
236 * inicjuje proces wymiany pliku z danym klientem.
237 *
238 * - ip - adres ip odbiorcy
239 * - port - port odbiorcy
240 * - my_uin - własny numer
241 * - peer_uin - numer obiorcy
242 * - type - rodzaj wymiany (GG_SESSION_DCC_SEND lub GG_SESSION_DCC_GET)
243 *
244 * zaalokowana struct gg_dcc lub NULL jeśli wystąpił błąd.
245 */
246 static struct gg_dcc *gg_dcc_transfer(uint32_t ip, uint16_t port, uin_t my_uin, uin_t peer_uin, int type)
247 {
248 struct gg_dcc *d = NULL;
249 struct in_addr addr;
250
251 addr.s_addr = ip;
252
253 gg_debug(GG_DEBUG_FUNCTION, "** gg_dcc_transfer(%s, %d, %ld, %ld, %s);\n", inet_ntoa(addr), port, my_uin, peer_uin, (type == GG_SESSION_DCC_SEND) ? "SEND" : "GET");
254
255 if (!ip || ip == INADDR_NONE || !port || !my_uin || !peer_uin) {
256 gg_debug(GG_DEBUG_MISC, "// gg_dcc_transfer() invalid arguments\n");
257 errno = EINVAL;
258 return NULL;
259 }
260
261 if (!(d = (void*) calloc(1, sizeof(*d)))) {
262 gg_debug(GG_DEBUG_MISC, "// gg_dcc_transfer() not enough memory\n");
263 return NULL;
264 }
265
266 d->check = GG_CHECK_WRITE;
267 d->state = GG_STATE_CONNECTING;
268 d->type = type;
269 d->timeout = GG_DEFAULT_TIMEOUT;
270 d->file_fd = -1;
271 d->active = 1;
272 d->fd = -1;
273 d->uin = my_uin;
274 d->peer_uin = peer_uin;
275
276 if ((d->fd = gg_connect(&addr, port, 1)) == -1) {
277 gg_debug(GG_DEBUG_MISC, "// gg_dcc_transfer() connection failed\n");
278 free(d);
279 return NULL;
280 }
281
282 return d;
283 }
284
285 /*
286 * gg_dcc_get_file()
287 *
288 * inicjuje proces odbierania pliku od danego klienta, gdy ten wysłał do
289 * nas żądanie połączenia.
290 *
291 * - ip - adres ip odbiorcy
292 * - port - port odbiorcy
293 * - my_uin - własny numer
294 * - peer_uin - numer obiorcy
295 *
296 * zaalokowana struct gg_dcc lub NULL jeśli wystąpił błąd.
297 */
298 struct gg_dcc *gg_dcc_get_file(uint32_t ip, uint16_t port, uin_t my_uin, uin_t peer_uin)
299 {
300 gg_debug(GG_DEBUG_MISC, "// gg_dcc_get_file() handing over to gg_dcc_transfer()\n");
301
302 return gg_dcc_transfer(ip, port, my_uin, peer_uin, GG_SESSION_DCC_GET);
303 }
304
305 /*
306 * gg_dcc_send_file()
307 *
308 * inicjuje proces wysyłania pliku do danego klienta.
309 *
310 * - ip - adres ip odbiorcy
311 * - port - port odbiorcy
312 * - my_uin - własny numer
313 * - peer_uin - numer obiorcy
314 *
315 * zaalokowana struct gg_dcc lub NULL jeśli wystąpił błąd.
316 */
317 struct gg_dcc *gg_dcc_send_file(uint32_t ip, uint16_t port, uin_t my_uin, uin_t peer_uin)
318 {
319 gg_debug(GG_DEBUG_MISC, "// gg_dcc_send_file() handing over to gg_dcc_transfer()\n");
320
321 return gg_dcc_transfer(ip, port, my_uin, peer_uin, GG_SESSION_DCC_SEND);
322 }
323
324 /*
325 * gg_dcc_voice_chat()
326 *
327 * próbuje nawiązać połączenie głosowe.
328 *
329 * - ip - adres ip odbiorcy
330 * - port - port odbiorcy
331 * - my_uin - własny numer
332 * - peer_uin - numer obiorcy
333 *
334 * zaalokowana struct gg_dcc lub NULL jeśli wystąpił błąd.
335 */
336 struct gg_dcc *gg_dcc_voice_chat(uint32_t ip, uint16_t port, uin_t my_uin, uin_t peer_uin)
337 {
338 gg_debug(GG_DEBUG_MISC, "// gg_dcc_voice_chat() handing over to gg_dcc_transfer()\n");
339
340 return gg_dcc_transfer(ip, port, my_uin, peer_uin, GG_SESSION_DCC_VOICE);
341 }
342
343 /*
344 * gg_dcc_set_type()
345 *
346 * po zdarzeniu GG_EVENT_DCC_CALLBACK należy ustawić typ połączenia za
347 * pomocą tej funkcji.
348 *
349 * - d - struktura opisująca połączenie
350 * - type - typ połączenia (GG_SESSION_DCC_SEND lub GG_SESSION_DCC_VOICE)
351 */
352 void gg_dcc_set_type(struct gg_dcc *d, int type)
353 {
354 d->type = type;
355 d->state = (type == GG_SESSION_DCC_SEND) ? GG_STATE_SENDING_FILE_INFO : GG_STATE_SENDING_VOICE_REQUEST;
356 }
357
358 /*
359 * gg_dcc_callback() // funkcja wewnętrzna
360 *
361 * wywoływana z struct gg_dcc->callback, odpala gg_dcc_watch_fd i umieszcza
362 * rezultat w struct gg_dcc->event.
363 *
364 * - d - structura opisująca połączenie
365 *
366 * 0, -1.
367 */
368 static int gg_dcc_callback(struct gg_dcc *d)
369 {
370 struct gg_event *e = gg_dcc_watch_fd(d);
371
372 d->event = e;
373
374 return (e != NULL) ? 0 : -1;
375 }
376
377 /*
378 * gg_dcc_socket_create()
379 *
380 * tworzy gniazdo dla bezpośredniej komunikacji między klientami.
381 *
382 * - uin - własny numer
383 * - port - preferowany port, jeśli równy 0 lub -1, próbuje domyślnego
384 *
385 * zaalokowana struct gg_dcc, którą poźniej należy zwolnić funkcją
386 * gg_dcc_free(), albo NULL jeśli wystąpił błąd.
387 */
388 struct gg_dcc *gg_dcc_socket_create(uin_t uin, uint16_t port)
389 {
390 struct gg_dcc *c;
391 struct sockaddr_in sin;
392 int sock, bound = 0, errno2;
393
394 gg_debug(GG_DEBUG_FUNCTION, "** gg_create_dcc_socket(%d, %d);\n", uin, port);
395
396 if (!uin) {
397 gg_debug(GG_DEBUG_MISC, "// gg_create_dcc_socket() invalid arguments\n");
398 errno = EINVAL;
399 return NULL;
400 }
401
402 if ((sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1) {
403 gg_debug(GG_DEBUG_MISC, "// gg_create_dcc_socket() can't create socket (%s)\n", strerror(errno));
404 return NULL;
405 }
406
407 if (!port)
408 port = GG_DEFAULT_DCC_PORT;
409
410 while (!bound) {
411 sin.sin_family = AF_INET;
412 sin.sin_addr.s_addr = INADDR_ANY;
413 sin.sin_port = htons(port);
414
415 gg_debug(GG_DEBUG_MISC, "// gg_create_dcc_socket() trying port %d\n", port);
416 if (!bind(sock, (struct sockaddr*) &sin, sizeof(sin)))
417 bound = 1;
418 else {
419 if (++port == 65535) {
420 gg_debug(GG_DEBUG_MISC, "// gg_create_dcc_socket() no free port found\n");
421 close(sock);
422 return NULL;
423 }
424 }
425 }
426
427 if (listen(sock, 10)) {
428 gg_debug(GG_DEBUG_MISC, "// gg_create_dcc_socket() unable to listen (%s)\n", strerror(errno));
429 errno2 = errno;
430 close(sock);
431 errno = errno2;
432 return NULL;
433 }
434
435 gg_debug(GG_DEBUG_MISC, "// gg_create_dcc_socket() bound to port %d\n", port);
436
437 if (!(c = malloc(sizeof(*c)))) {
438 gg_debug(GG_DEBUG_MISC, "// gg_create_dcc_socket() not enough memory for struct\n");
439 close(sock);
440 return NULL;
441 }
442 memset(c, 0, sizeof(*c));
443
444 c->port = c->id = port;
445 c->fd = sock;
446 c->type = GG_SESSION_DCC_SOCKET;
447 c->uin = uin;
448 c->timeout = -1;
449 c->state = GG_STATE_LISTENING;
450 c->check = GG_CHECK_READ;
451 c->callback = gg_dcc_callback;
452 c->destroy = gg_dcc_free;
453
454 return c;
455 }
456
457 /*
458 * gg_dcc_voice_send()
459 *
460 * wysyła ramkę danych dla rozmowy głosowej.
461 *
462 * - d - struktura opisująca połączenie dcc
463 * - buf - bufor z danymi
464 * - length - rozmiar ramki
465 *
466 * 0, -1.
467 */
468 int gg_dcc_voice_send(struct gg_dcc *d, char *buf, int length)
469 {
470 struct packet_s {
471 uint8_t type;
472 uint32_t length;
473 } GG_PACKED;
474 struct packet_s packet;
475
476 gg_debug(GG_DEBUG_FUNCTION, "++ gg_dcc_voice_send(%p, %p, %d);\n", d, buf, length);
477 if (!d || !buf || length < 0 || d->type != GG_SESSION_DCC_VOICE) {
478 gg_debug(GG_DEBUG_MISC, "// gg_dcc_voice_send() invalid argument\n");
479 errno = EINVAL;
480 return -1;
481 }
482
483 packet.type = 0x03; /* XXX */
484 packet.length = gg_fix32(length);
485
486 if (write(d->fd, &packet, sizeof(packet)) < (signed)sizeof(packet)) {
487 gg_debug(GG_DEBUG_MISC, "// gg_dcc_voice_send() write() failed\n");
488 return -1;
489 }
490 gg_dcc_debug_data("write", d->fd, &packet, sizeof(packet));
491
492 if (write(d->fd, buf, length) < length) {
493 gg_debug(GG_DEBUG_MISC, "// gg_dcc_voice_send() write() failed\n");
494 return -1;
495 }
496 gg_dcc_debug_data("write", d->fd, buf, length);
497
498 return 0;
499 }
500
501 #define gg_read(fd, buf, size) \
502 { \
503 int tmp = read(fd, buf, size); \
504 \
505 if (tmp < (int) size) { \
506 if (tmp == -1) { \
507 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() failed (errno=%d, %s)\n", errno, strerror(errno)); \
508 } else if (tmp == 0) { \
509 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() failed, connection broken\n"); \
510 } else { \
511 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() failed (%d bytes, %d needed)\n", tmp, size); \
512 } \
513 e->type = GG_EVENT_DCC_ERROR; \
514 e->event.dcc_error = GG_ERROR_DCC_HANDSHAKE; \
515 return e; \
516 } \
517 gg_dcc_debug_data("read", fd, buf, size); \
518 }
519
520 #define gg_write(fd, buf, size) \
521 { \
522 int tmp; \
523 gg_dcc_debug_data("write", fd, buf, size); \
524 tmp = write(fd, buf, size); \
525 if (tmp < (int) size) { \
526 if (tmp == -1) { \
527 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() write() failed (errno=%d, %s)\n", errno, strerror(errno)); \
528 } else { \
529 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() write() failed (%d needed, %d done)\n", size, tmp); \
530 } \
531 e->type = GG_EVENT_DCC_ERROR; \
532 e->event.dcc_error = GG_ERROR_DCC_HANDSHAKE; \
533 return e; \
534 } \
535 }
536
537 /*
538 * gg_dcc_watch_fd()
539 *
540 * funkcja, którą należy wywołać, gdy coś się zmieni na gg_dcc->fd.
541 *
542 * - h - struktura zwrócona przez gg_create_dcc_socket()
543 *
544 * zaalokowana struct gg_event lub NULL, jeśli zabrakło pamięci na nią.
545 */
546 struct gg_event *gg_dcc_watch_fd(struct gg_dcc *h)
547 {
548 struct gg_event *e;
549 int foo;
550
551 gg_debug(GG_DEBUG_FUNCTION, "** gg_dcc_watch_fd(%p);\n", h);
552
553 if (!h || (h->type != GG_SESSION_DCC && h->type != GG_SESSION_DCC_SOCKET && h->type != GG_SESSION_DCC_SEND && h->type != GG_SESSION_DCC_GET && h->type != GG_SESSION_DCC_VOICE)) {
554 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() invalid argument\n");
555 errno = EINVAL;
556 return NULL;
557 }
558
559 if (!(e = (void*) calloc(1, sizeof(*e)))) {
560 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() not enough memory\n");
561 return NULL;
562 }
563
564 e->type = GG_EVENT_NONE;
565
566 if (h->type == GG_SESSION_DCC_SOCKET) {
567 struct sockaddr_in sin;
568 struct gg_dcc *c;
569 int fd, sin_len = sizeof(sin), one = 1;
570
571 if ((fd = accept(h->fd, (struct sockaddr*) &sin, &sin_len)) == -1) {
572 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() can't accept() new connection (errno=%d, %s)\n", errno, strerror(errno));
573 return e;
574 }
575
576 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() new direct connection from %s:%d\n", inet_ntoa(sin.sin_addr), htons(sin.sin_port));
577
578 #ifdef FIONBIO
579 if (ioctl(fd, FIONBIO, &one) == -1) {
580 #else
581 if (fcntl(fd, F_SETFL, O_NONBLOCK) == -1) {
582 #endif
583 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() can't set nonblocking (errno=%d, %s)\n", errno, strerror(errno));
584 close(fd);
585 e->type = GG_EVENT_DCC_ERROR;
586 e->event.dcc_error = GG_ERROR_DCC_HANDSHAKE;
587 return e;
588 }
589
590 if (!(c = (void*) calloc(1, sizeof(*c)))) {
591 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() not enough memory for client data\n");
592
593 free(e);
594 close(fd);
595 return NULL;
596 }
597
598 c->fd = fd;
599 c->check = GG_CHECK_READ;
600 c->state = GG_STATE_READING_UIN_1;
601 c->type = GG_SESSION_DCC;
602 c->timeout = GG_DEFAULT_TIMEOUT;
603 c->file_fd = -1;
604 c->remote_addr = sin.sin_addr.s_addr;
605 c->remote_port = ntohs(sin.sin_port);
606
607 e->type = GG_EVENT_DCC_NEW;
608 e->event.dcc_new = c;
609
610 return e;
611 } else {
612 struct gg_dcc_tiny_packet tiny;
613 struct gg_dcc_small_packet small;
614 struct gg_dcc_big_packet big;
615 int size, tmp, res, res_size = sizeof(res);
616 unsigned int utmp;
617 char buf[1024], ack[] = "UDAG";
618
619 struct gg_dcc_file_info_packet {
620 struct gg_dcc_big_packet big;
621 struct gg_file_info file_info;
622 } GG_PACKED;
623 struct gg_dcc_file_info_packet file_info_packet;
624
625 switch (h->state) {
626 case GG_STATE_READING_UIN_1:
627 case GG_STATE_READING_UIN_2:
628 {
629 uin_t uin;
630
631 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_READING_UIN_%d\n", (h->state == GG_STATE_READING_UIN_1) ? 1 : 2);
632
633 gg_read(h->fd, &uin, sizeof(uin));
634
635 if (h->state == GG_STATE_READING_UIN_1) {
636 h->state = GG_STATE_READING_UIN_2;
637 h->check = GG_CHECK_READ;
638 h->timeout = GG_DEFAULT_TIMEOUT;
639 h->peer_uin = gg_fix32(uin);
640 } else {
641 h->state = GG_STATE_SENDING_ACK;
642 h->check = GG_CHECK_WRITE;
643 h->timeout = GG_DEFAULT_TIMEOUT;
644 h->uin = gg_fix32(uin);
645 e->type = GG_EVENT_DCC_CLIENT_ACCEPT;
646 }
647
648 return e;
649 }
650
651 case GG_STATE_SENDING_ACK:
652 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_SENDING_ACK\n");
653
654 gg_write(h->fd, ack, 4);
655
656 h->state = GG_STATE_READING_TYPE;
657 h->check = GG_CHECK_READ;
658 h->timeout = GG_DEFAULT_TIMEOUT;
659
660 return e;
661
662 case GG_STATE_READING_TYPE:
663 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_READING_TYPE\n");
664
665 gg_read(h->fd, &small, sizeof(small));
666
667 small.type = gg_fix32(small.type);
668
669 switch (small.type) {
670 case 0x0003: /* XXX */
671 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() callback\n");
672 h->type = GG_SESSION_DCC_SEND;
673 h->state = GG_STATE_SENDING_FILE_INFO;
674 h->check = GG_CHECK_WRITE;
675 h->timeout = GG_DEFAULT_TIMEOUT;
676
677 e->type = GG_EVENT_DCC_CALLBACK;
678
679 break;
680
681 case 0x0002: /* XXX */
682 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() dialin\n");
683 h->type = GG_SESSION_DCC_GET;
684 h->state = GG_STATE_READING_REQUEST;
685 h->check = GG_CHECK_READ;
686 h->timeout = GG_DEFAULT_TIMEOUT;
687 h->incoming = 1;
688
689 break;
690
691 default:
692 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() unknown dcc type (%.4x) from %ld\n", small.type, h->peer_uin);
693 e->type = GG_EVENT_DCC_ERROR;
694 e->event.dcc_error = GG_ERROR_DCC_HANDSHAKE;
695 }
696
697 return e;
698
699 case GG_STATE_READING_REQUEST:
700 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_READING_REQUEST\n");
701
702 gg_read(h->fd, &small, sizeof(small));
703
704 small.type = gg_fix32(small.type);
705
706 switch (small.type) {
707 case 0x0001: /* XXX */
708 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() file transfer request\n");
709 h->state = GG_STATE_READING_FILE_INFO;
710 h->check = GG_CHECK_READ;
711 h->timeout = GG_DEFAULT_TIMEOUT;
712 break;
713
714 case 0x0003: /* XXX */
715 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() voice chat request\n");
716 h->state = GG_STATE_SENDING_VOICE_ACK;
717 h->check = GG_CHECK_WRITE;
718 h->timeout = GG_DCC_TIMEOUT_VOICE_ACK;
719 h->type = GG_SESSION_DCC_VOICE;
720 e->type = GG_EVENT_DCC_NEED_VOICE_ACK;
721
722 break;
723
724 default:
725 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() unknown dcc request (%.4x) from %ld\n", small.type, h->peer_uin);
726 e->type = GG_EVENT_DCC_ERROR;
727 e->event.dcc_error = GG_ERROR_DCC_HANDSHAKE;
728 }
729
730 return e;
731
732 case GG_STATE_READING_FILE_INFO:
733 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_READING_FILE_INFO\n");
734
735 gg_read(h->fd, &file_info_packet, sizeof(file_info_packet));
736
737 memcpy(&h->file_info, &file_info_packet.file_info, sizeof(h->file_info));
738
739 h->file_info.mode = gg_fix32(h->file_info.mode);
740 h->file_info.size = gg_fix32(h->file_info.size);
741
742 h->state = GG_STATE_SENDING_FILE_ACK;
743 h->check = GG_CHECK_WRITE;
744 h->timeout = GG_DCC_TIMEOUT_FILE_ACK;
745
746 e->type = GG_EVENT_DCC_NEED_FILE_ACK;
747
748 return e;
749
750 case GG_STATE_SENDING_FILE_ACK:
751 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_SENDING_FILE_ACK\n");
752
753 big.type = gg_fix32(0x0006); /* XXX */
754 big.dunno1 = gg_fix32(h->offset);
755 big.dunno2 = 0;
756
757 gg_write(h->fd, &big, sizeof(big));
758
759 h->state = GG_STATE_READING_FILE_HEADER;
760 h->chunk_size = sizeof(big);
761 h->chunk_offset = 0;
762 if (!(h->chunk_buf = malloc(sizeof(big)))) {
763 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() out of memory\n");
764 free(e);
765 return NULL;
766 }
767 h->check = GG_CHECK_READ;
768 h->timeout = GG_DEFAULT_TIMEOUT;
769
770 return e;
771
772 case GG_STATE_SENDING_VOICE_ACK:
773 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_SENDING_VOICE_ACK\n");
774
775 tiny.type = 0x01; /* XXX */
776
777 gg_write(h->fd, &tiny, sizeof(tiny));
778
779 h->state = GG_STATE_READING_VOICE_HEADER;
780 h->check = GG_CHECK_READ;
781 h->timeout = GG_DEFAULT_TIMEOUT;
782
783 h->offset = 0;
784
785 return e;
786
787 case GG_STATE_READING_FILE_HEADER:
788 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_READING_FILE_HEADER\n");
789
790 tmp = read(h->fd, h->chunk_buf + h->chunk_offset, h->chunk_size - h->chunk_offset);
791
792 if (tmp == -1) {
793 gg_debug(GG_DEBUG_MISC, "// gg_watch_fd() read() failed (errno=%d, %s)\n", errno, strerror(errno));
794 e->type = GG_EVENT_DCC_ERROR;
795 e->event.dcc_error = GG_ERROR_DCC_NET;
796 return e;
797 }
798
799 gg_dcc_debug_data("read", h->fd, h->chunk_buf + h->chunk_offset, h->chunk_size - h->chunk_offset);
800
801 h->chunk_offset += tmp;
802
803 if (h->chunk_offset < h->chunk_size)
804 return e;
805
806 memcpy(&big, h->chunk_buf, sizeof(big));
807 free(h->chunk_buf);
808 h->chunk_buf = NULL;
809
810 big.type = gg_fix32(big.type);
811 h->chunk_size = gg_fix32(big.dunno1);
812 h->chunk_offset = 0;
813
814 if (big.type == 0x0005) { /* XXX */
815 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() transfer refused\n");
816 e->type = GG_EVENT_DCC_ERROR;
817 e->event.dcc_error = GG_ERROR_DCC_REFUSED;
818 return e;
819 }
820
821 if (h->chunk_size == 0) {
822 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() empty chunk, EOF\n");
823 e->type = GG_EVENT_DCC_DONE;
824 return e;
825 }
826
827 h->state = GG_STATE_GETTING_FILE;
828 h->check = GG_CHECK_READ;
829 h->timeout = GG_DEFAULT_TIMEOUT;
830 h->established = 1;
831
832 return e;
833
834 case GG_STATE_READING_VOICE_HEADER:
835 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_READING_VOICE_HEADER\n");
836
837 gg_read(h->fd, &tiny, sizeof(tiny));
838
839 switch (tiny.type) {
840 case 0x03: /* XXX */
841 h->state = GG_STATE_READING_VOICE_SIZE;
842 h->check = GG_CHECK_READ;
843 h->timeout = GG_DEFAULT_TIMEOUT;
844 h->established = 1;
845 break;
846 case 0x04: /* XXX */
847 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() peer breaking connection\n");
848 /* XXX zwracać odpowiedni event */
849 default:
850 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() unknown request (%.2x)\n", tiny.type);
851 e->type = GG_EVENT_DCC_ERROR;
852 e->event.dcc_error = GG_ERROR_DCC_HANDSHAKE;
853 }
854
855 return e;
856
857 case GG_STATE_READING_VOICE_SIZE:
858 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_READING_VOICE_SIZE\n");
859
860 gg_read(h->fd, &small, sizeof(small));
861
862 small.type = gg_fix32(small.type);
863
864 if (small.type < 16 || small.type > sizeof(buf)) {
865 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() invalid voice frame size (%d)\n", small.type);
866 e->type = GG_EVENT_DCC_ERROR;
867 e->event.dcc_error = GG_ERROR_DCC_NET;
868
869 return e;
870 }
871
872 h->chunk_size = small.type;
873 h->chunk_offset = 0;
874
875 if (!(h->voice_buf = malloc(h->chunk_size))) {
876 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() out of memory for voice frame\n");
877 return NULL;
878 }
879
880 h->state = GG_STATE_READING_VOICE_DATA;
881 h->check = GG_CHECK_READ;
882 h->timeout = GG_DEFAULT_TIMEOUT;
883
884 return e;
885
886 case GG_STATE_READING_VOICE_DATA:
887 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_READING_VOICE_DATA\n");
888
889 tmp = read(h->fd, h->voice_buf + h->chunk_offset, h->chunk_size - h->chunk_offset);
890 if (tmp < 1) {
891 if (tmp == -1) {
892 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() failed (errno=%d, %s)\n", errno, strerror(errno));
893 } else {
894 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() failed, connection broken\n");
895 }
896 e->type = GG_EVENT_DCC_ERROR;
897 e->event.dcc_error = GG_ERROR_DCC_NET;
898 return e;
899 }
900
901 gg_dcc_debug_data("read", h->fd, h->voice_buf + h->chunk_offset, tmp);
902
903 h->chunk_offset += tmp;
904
905 if (h->chunk_offset >= h->chunk_size) {
906 e->type = GG_EVENT_DCC_VOICE_DATA;
907 e->event.dcc_voice_data.data = h->voice_buf;
908 e->event.dcc_voice_data.length = h->chunk_size;
909 h->state = GG_STATE_READING_VOICE_HEADER;
910 h->voice_buf = NULL;
911 }
912
913 h->check = GG_CHECK_READ;
914 h->timeout = GG_DEFAULT_TIMEOUT;
915
916 return e;
917
918 case GG_STATE_CONNECTING:
919 {
920 uin_t uins[2];
921
922 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_CONNECTING\n");
923
924 res = 0;
925 if ((foo = getsockopt(h->fd, SOL_SOCKET, SO_ERROR, &res, &res_size)) || res) {
926 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() connection failed (fd=%d,errno=%d(%s),foo=%d,res=%d(%s))\n", h->fd, errno, strerror(errno), foo, res, strerror(res));
927 e->type = GG_EVENT_DCC_ERROR;
928 e->event.dcc_error = GG_ERROR_DCC_HANDSHAKE;
929 return e;
930 }
931
932 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() connected, sending uins\n");
933
934 uins[0] = gg_fix32(h->uin);
935 uins[1] = gg_fix32(h->peer_uin);
936
937 gg_write(h->fd, uins, sizeof(uins));
938
939 h->state = GG_STATE_READING_ACK;
940 h->check = GG_CHECK_READ;
941 h->timeout = GG_DEFAULT_TIMEOUT;
942
943 return e;
944 }
945
946 case GG_STATE_READING_ACK:
947 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_READING_ACK\n");
948
949 gg_read(h->fd, buf, 4);
950
951 if (strncmp(buf, ack, 4)) {
952 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() did't get ack\n");
953
954 e->type = GG_EVENT_DCC_ERROR;
955 e->event.dcc_error = GG_ERROR_DCC_HANDSHAKE;
956 return e;
957 }
958
959 h->check = GG_CHECK_WRITE;
960 h->timeout = GG_DEFAULT_TIMEOUT;
961 h->state = GG_STATE_SENDING_REQUEST;
962
963 return e;
964
965 case GG_STATE_SENDING_VOICE_REQUEST:
966 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_SENDING_VOICE_REQUEST\n");
967
968 small.type = gg_fix32(0x0003);
969
970 gg_write(h->fd, &small, sizeof(small));
971
972 h->state = GG_STATE_READING_VOICE_ACK;
973 h->check = GG_CHECK_READ;
974 h->timeout = GG_DEFAULT_TIMEOUT;
975
976 return e;
977
978 case GG_STATE_SENDING_REQUEST:
979 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_SENDING_REQUEST\n");
980
981 small.type = (h->type == GG_SESSION_DCC_GET) ? gg_fix32(0x0003) : gg_fix32(0x0002); /* XXX */
982
983 gg_write(h->fd, &small, sizeof(small));
984
985 switch (h->type) {
986 case GG_SESSION_DCC_GET:
987 h->state = GG_STATE_READING_REQUEST;
988 h->check = GG_CHECK_READ;
989 h->timeout = GG_DEFAULT_TIMEOUT;
990 break;
991
992 case GG_SESSION_DCC_SEND:
993 h->state = GG_STATE_SENDING_FILE_INFO;
994 h->check = GG_CHECK_WRITE;
995 h->timeout = GG_DEFAULT_TIMEOUT;
996
997 if (h->file_fd == -1)
998 e->type = GG_EVENT_DCC_NEED_FILE_INFO;
999 break;
1000
1001 case GG_SESSION_DCC_VOICE:
1002 h->state = GG_STATE_SENDING_VOICE_REQUEST;
1003 h->check = GG_CHECK_WRITE;
1004 h->timeout = GG_DEFAULT_TIMEOUT;
1005 break;
1006 }
1007
1008 return e;
1009
1010 case GG_STATE_SENDING_FILE_INFO:
1011 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_SENDING_FILE_INFO\n");
1012
1013 if (h->file_fd == -1) {
1014 e->type = GG_EVENT_DCC_NEED_FILE_INFO;
1015 return e;
1016 }
1017
1018 small.type = gg_fix32(0x0001); /* XXX */
1019
1020 gg_write(h->fd, &small, sizeof(small));
1021
1022 file_info_packet.big.type = gg_fix32(0x0003); /* XXX */
1023 file_info_packet.big.dunno1 = 0;
1024 file_info_packet.big.dunno2 = 0;
1025
1026 memcpy(&file_info_packet.file_info, &h->file_info, sizeof(h->file_info));
1027
1028 /* zostają teraz u nas, więc odwracamy z powrotem */
1029 h->file_info.size = gg_fix32(h->file_info.size);
1030 h->file_info.mode = gg_fix32(h->file_info.mode);
1031
1032 gg_write(h->fd, &file_info_packet, sizeof(file_info_packet));
1033
1034 h->state = GG_STATE_READING_FILE_ACK;
1035 h->check = GG_CHECK_READ;
1036 h->timeout = GG_DCC_TIMEOUT_FILE_ACK;
1037
1038 return e;
1039
1040 case GG_STATE_READING_FILE_ACK:
1041 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_READING_FILE_ACK\n");
1042
1043 gg_read(h->fd, &big, sizeof(big));
1044
1045 /* XXX sprawdzać wynik */
1046 h->offset = gg_fix32(big.dunno1);
1047
1048 h->state = GG_STATE_SENDING_FILE_HEADER;
1049 h->check = GG_CHECK_WRITE;
1050 h->timeout = GG_DEFAULT_TIMEOUT;
1051
1052 e->type = GG_EVENT_DCC_ACK;
1053
1054 return e;
1055
1056 case GG_STATE_READING_VOICE_ACK:
1057 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_READING_VOICE_ACK\n");
1058
1059 gg_read(h->fd, &tiny, sizeof(tiny));
1060
1061 if (tiny.type != 0x01) {
1062 gg_debug(GG_DEBUG_MISC, "// invalid reply (%.2x), connection refused\n", tiny.type);
1063 e->type = GG_EVENT_DCC_ERROR;
1064 e->event.dcc_error = GG_ERROR_DCC_REFUSED;
1065 return e;
1066 }
1067
1068 h->state = GG_STATE_READING_VOICE_HEADER;
1069 h->check = GG_CHECK_READ;
1070 h->timeout = GG_DEFAULT_TIMEOUT;
1071
1072 e->type = GG_EVENT_DCC_ACK;
1073
1074 return e;
1075
1076 case GG_STATE_SENDING_FILE_HEADER:
1077 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_SENDING_FILE_HEADER\n");
1078
1079 h->chunk_offset = 0;
1080
1081 if ((h->chunk_size = h->file_info.size - h->offset) > 4096) {
1082 h->chunk_size = 4096;
1083 big.type = gg_fix32(0x0003); /* XXX */
1084 } else
1085 big.type = gg_fix32(0x0002); /* XXX */
1086
1087 big.dunno1 = gg_fix32(h->chunk_size);
1088 big.dunno2 = 0;
1089
1090 gg_write(h->fd, &big, sizeof(big));
1091
1092 h->state = GG_STATE_SENDING_FILE;
1093 h->check = GG_CHECK_WRITE;
1094 h->timeout = GG_DEFAULT_TIMEOUT;
1095 h->established = 1;
1096
1097 return e;
1098
1099 case GG_STATE_SENDING_FILE:
1100 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_SENDING_FILE\n");
1101
1102 if ((utmp = h->chunk_size - h->chunk_offset) > sizeof(buf))
1103 utmp = sizeof(buf);
1104
1105 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() offset=%d, size=%d\n", h->offset, h->file_info.size);
1106
1107 /* koniec pliku? */
1108 if (h->file_info.size == 0) {
1109 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() reached eof on empty file\n");
1110 e->type = GG_EVENT_DCC_DONE;
1111
1112 return e;
1113 }
1114
1115 lseek(h->file_fd, h->offset, SEEK_SET);
1116
1117 size = read(h->file_fd, buf, utmp);
1118
1119 /* błąd */
1120 if (size == -1) {
1121 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() failed. (errno=%d, %s)\n", errno, strerror(errno));
1122
1123 e->type = GG_EVENT_DCC_ERROR;
1124 e->event.dcc_error = GG_ERROR_DCC_FILE;
1125
1126 return e;
1127 }
1128
1129 /* koniec pliku? */
1130 if (size == 0) {
1131 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() reached eof\n");
1132 e->type = GG_EVENT_DCC_ERROR;
1133 e->event.dcc_error = GG_ERROR_DCC_EOF;
1134
1135 return e;
1136 }
1137
1138 /* jeśli wczytaliśmy więcej, utnijmy. */
1139 if (h->offset + size > h->file_info.size) {
1140 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() too much (read=%d, ofs=%d, size=%d)\n", size, h->offset, h->file_info.size);
1141 size = h->file_info.size - h->offset;
1142
1143 if (size < 1) {
1144 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() reached EOF after cutting\n");
1145 e->type = GG_EVENT_DCC_DONE;
1146 return e;
1147 }
1148 }
1149
1150 tmp = write(h->fd, buf, size);
1151
1152 if (tmp == -1) {
1153 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() write() failed (%s)\n", strerror(errno));
1154 e->type = GG_EVENT_DCC_ERROR;
1155 e->event.dcc_error = GG_ERROR_DCC_NET;
1156 return e;
1157 }
1158
1159 h->offset += size;
1160
1161 if (h->offset >= h->file_info.size) {
1162 e->type = GG_EVENT_DCC_DONE;
1163 return e;
1164 }
1165
1166 h->chunk_offset += size;
1167
1168 if (h->chunk_offset >= h->chunk_size) {
1169 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() chunk finished\n");
1170 h->state = GG_STATE_SENDING_FILE_HEADER;
1171 h->timeout = GG_DEFAULT_TIMEOUT;
1172 } else {
1173 h->state = GG_STATE_SENDING_FILE;
1174 h->timeout = GG_DCC_TIMEOUT_SEND;
1175 }
1176
1177 h->check = GG_CHECK_WRITE;
1178
1179 return e;
1180
1181 case GG_STATE_GETTING_FILE:
1182 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_GETTING_FILE\n");
1183
1184 if ((utmp = h->chunk_size - h->chunk_offset) > sizeof(buf))
1185 utmp = sizeof(buf);
1186
1187 size = read(h->fd, buf, utmp);
1188
1189 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() ofs=%d, size=%d, read()=%d\n", h->offset, h->file_info.size, size);
1190
1191 /* błąd */
1192 if (size == -1) {
1193 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() failed. (errno=%d, %s)\n", errno, strerror(errno));
1194
1195 e->type = GG_EVENT_DCC_ERROR;
1196 e->event.dcc_error = GG_ERROR_DCC_NET;
1197
1198 return e;
1199 }
1200
1201 /* koniec? */
1202 if (size == 0) {
1203 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() read() reached eof\n");
1204 e->type = GG_EVENT_DCC_ERROR;
1205 e->event.dcc_error = GG_ERROR_DCC_EOF;
1206
1207 return e;
1208 }
1209
1210 tmp = write(h->file_fd, buf, size);
1211
1212 if (tmp == -1 || tmp < size) {
1213 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() write() failed (%d:fd=%d:res=%d:%s)\n", tmp, h->file_fd, size, strerror(errno));
1214 e->type = GG_EVENT_DCC_ERROR;
1215 e->event.dcc_error = GG_ERROR_DCC_NET;
1216 return e;
1217 }
1218
1219 h->offset += size;
1220
1221 if (h->offset >= h->file_info.size) {
1222 e->type = GG_EVENT_DCC_DONE;
1223 return e;
1224 }
1225
1226 h->chunk_offset += size;
1227
1228 if (h->chunk_offset >= h->chunk_size) {
1229 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() chunk finished\n");
1230 h->state = GG_STATE_READING_FILE_HEADER;
1231 h->timeout = GG_DEFAULT_TIMEOUT;
1232 h->chunk_offset = 0;
1233 h->chunk_size = sizeof(big);
1234 if (!(h->chunk_buf = malloc(sizeof(big)))) {
1235 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() out of memory\n");
1236 free(e);
1237 return NULL;
1238 }
1239 } else {
1240 h->state = GG_STATE_GETTING_FILE;
1241 h->timeout = GG_DCC_TIMEOUT_GET;
1242 }
1243
1244 h->check = GG_CHECK_READ;
1245
1246 return e;
1247
1248 default:
1249 gg_debug(GG_DEBUG_MISC, "// gg_dcc_watch_fd() GG_STATE_???\n");
1250 e->type = GG_EVENT_DCC_ERROR;
1251 e->event.dcc_error = GG_ERROR_DCC_HANDSHAKE;
1252
1253 return e;
1254 }
1255 }
1256
1257 return e;
1258 }
1259
1260 #undef gg_read
1261 #undef gg_write
1262
1263 /*
1264 * gg_dcc_free()
1265 *
1266 * zwalnia pamięć po strukturze połączenia dcc.
1267 *
1268 * - d - zwalniana struktura
1269 */
1270 void gg_dcc_free(struct gg_dcc *d)
1271 {
1272 gg_debug(GG_DEBUG_FUNCTION, "** gg_dcc_free(%p);\n", d);
1273
1274 if (!d)
1275 return;
1276
1277 if (d->fd != -1)
1278 close(d->fd);
1279
1280 if (d->chunk_buf) {
1281 free(d->chunk_buf);
1282 d->chunk_buf = NULL;
1283 }
1284
1285 free(d);
1286 }
1287
1288 /*
1289 * Local variables:
1290 * c-indentation-style: k&r
1291 * c-basic-offset: 8
1292 * indent-tabs-mode: notnil
1293 * End:
1294 *
1295 * vim: shiftwidth=8:
1296 */

Mercurial Repository: pidgin3

mercurial