]>
Commit | Line | Data |
---|---|---|
9de3ca7e | 1 | |
2 | /* | |
3 | * aim_conn.c | |
4 | * | |
5 | * Does all this gloriously nifty connection handling stuff... | |
6 | * | |
7 | */ | |
8 | ||
a25832e6 | 9 | #include <faim/aim.h> |
9de3ca7e | 10 | |
67a264ef | 11 | #ifndef _WIN32 |
78b3fb13 | 12 | #include <netdb.h> |
13 | #include <sys/socket.h> | |
14 | #include <netinet/in.h> | |
67a264ef | 15 | #endif |
78b3fb13 | 16 | |
be67fdd0 | 17 | /** |
18 | * aim_connrst - Clears out connection list, killing remaining connections. | |
19 | * @sess: Session to be cleared | |
20 | * | |
21 | * Clears out the connection list and kills any connections left. | |
22 | * | |
040457cc | 23 | */ |
78b3fb13 | 24 | faim_internal void aim_connrst(struct aim_session_t *sess) |
9de3ca7e | 25 | { |
b13c9e13 | 26 | faim_mutex_init(&sess->connlistlock); |
040457cc | 27 | if (sess->connlist) { |
28 | struct aim_conn_t *cur = sess->connlist, *tmp; | |
29 | ||
30 | while(cur) { | |
31 | tmp = cur->next; | |
32 | aim_conn_close(cur); | |
33 | free(cur); | |
34 | cur = tmp; | |
35 | } | |
e88ba395 | 36 | } |
040457cc | 37 | sess->connlist = NULL; |
38 | return; | |
9de3ca7e | 39 | } |
40 | ||
be67fdd0 | 41 | /** |
42 | * aim_conn_getnext - Gets a new connection structure. | |
43 | * @sess: Session | |
44 | * | |
45 | * Allocate a new empty connection structure. | |
46 | * | |
040457cc | 47 | */ |
78b3fb13 | 48 | faim_internal struct aim_conn_t *aim_conn_getnext(struct aim_session_t *sess) |
9de3ca7e | 49 | { |
040457cc | 50 | struct aim_conn_t *newconn, *cur; |
51 | ||
52 | if (!(newconn = malloc(sizeof(struct aim_conn_t)))) | |
53 | return NULL; | |
54 | ||
55 | memset(newconn, 0, sizeof(struct aim_conn_t)); | |
56 | aim_conn_close(newconn); | |
57 | newconn->next = NULL; | |
58 | ||
59 | faim_mutex_lock(&sess->connlistlock); | |
60 | if (sess->connlist == NULL) | |
61 | sess->connlist = newconn; | |
62 | else { | |
63 | for (cur = sess->connlist; cur->next; cur = cur->next) | |
64 | ; | |
65 | cur->next = newconn; | |
66 | } | |
67 | faim_mutex_unlock(&sess->connlistlock); | |
68 | ||
69 | return newconn; | |
70 | } | |
71 | ||
be67fdd0 | 72 | /** |
73 | * aim_conn_init - Reset a connection to default values. | |
74 | * @deadconn: Connection to be reset | |
75 | * | |
76 | * Initializes and/or resets a connection structure. | |
77 | * | |
78 | */ | |
4d7c1bfb | 79 | static void aim_conn_init(struct aim_conn_t *deadconn) |
80 | { | |
81 | if (!deadconn) | |
82 | return; | |
83 | ||
84 | deadconn->fd = -1; | |
3369f8d4 | 85 | deadconn->subtype = -1; |
4d7c1bfb | 86 | deadconn->type = -1; |
87 | deadconn->seqnum = 0; | |
88 | deadconn->lastactivity = 0; | |
89 | deadconn->forcedlatency = 0; | |
90 | deadconn->handlerlist = NULL; | |
91 | deadconn->priv = NULL; | |
b13c9e13 | 92 | faim_mutex_init(&deadconn->active); |
93 | faim_mutex_init(&deadconn->seqnum_lock); | |
4d7c1bfb | 94 | |
95 | return; | |
96 | } | |
97 | ||
be67fdd0 | 98 | /** |
99 | * aim_conn_kill - Close and free a connection. | |
100 | * @sess: Session for the connection | |
101 | * @deadconn: Connection to be freed | |
102 | * | |
103 | * Close, clear, and free a connection structure. | |
104 | * | |
105 | */ | |
78b3fb13 | 106 | faim_export void aim_conn_kill(struct aim_session_t *sess, struct aim_conn_t **deadconn) |
040457cc | 107 | { |
108 | struct aim_conn_t *cur; | |
109 | ||
110 | if (!deadconn || !*deadconn) | |
111 | return; | |
112 | ||
113 | faim_mutex_lock(&sess->connlistlock); | |
114 | if (sess->connlist == NULL) | |
115 | ; | |
116 | else if (sess->connlist->next == NULL) { | |
117 | if (sess->connlist == *deadconn) | |
118 | sess->connlist = NULL; | |
119 | } else { | |
120 | cur = sess->connlist; | |
121 | while (cur->next) { | |
122 | if (cur->next == *deadconn) { | |
123 | cur->next = cur->next->next; | |
124 | break; | |
125 | } | |
126 | cur = cur->next; | |
127 | } | |
128 | } | |
129 | faim_mutex_unlock(&sess->connlistlock); | |
130 | ||
68ac63c2 | 131 | /* XXX: do we need this for txqueue too? */ |
132 | aim_rxqueue_cleanbyconn(sess, *deadconn); | |
133 | ||
f8ac5020 | 134 | aim_conn_close(*deadconn); |
135 | if ((*deadconn)->priv) | |
136 | free((*deadconn)->priv); | |
040457cc | 137 | free(*deadconn); |
138 | deadconn = NULL; | |
139 | ||
140 | return; | |
9de3ca7e | 141 | } |
142 | ||
be67fdd0 | 143 | /** |
144 | * aim_conn_close - Close a connection | |
145 | * @deadconn: Connection to close | |
146 | * | |
147 | * Close (but not free) a connection. | |
148 | * | |
149 | */ | |
78b3fb13 | 150 | faim_export void aim_conn_close(struct aim_conn_t *deadconn) |
9de3ca7e | 151 | { |
3369f8d4 | 152 | int typesav = -1, subtypesav = -1; |
153 | void *privsav = NULL; | |
4d7c1bfb | 154 | |
155 | faim_mutex_destroy(&deadconn->active); | |
156 | faim_mutex_destroy(&deadconn->seqnum_lock); | |
9de3ca7e | 157 | if (deadconn->fd >= 3) |
158 | close(deadconn->fd); | |
0252e8c0 | 159 | if (deadconn->handlerlist) |
160 | aim_clearhandlers(deadconn); | |
3369f8d4 | 161 | |
162 | typesav = deadconn->type; | |
163 | subtypesav = deadconn->subtype; | |
164 | ||
165 | if (deadconn->priv && (deadconn->type != AIM_CONN_TYPE_RENDEZVOUS)) { | |
0c20631f | 166 | free(deadconn->priv); |
3369f8d4 | 167 | deadconn->priv = NULL; |
168 | } | |
169 | privsav = deadconn->priv; | |
170 | ||
4d7c1bfb | 171 | aim_conn_init(deadconn); |
172 | ||
173 | deadconn->type = typesav; | |
3369f8d4 | 174 | deadconn->subtype = subtypesav; |
175 | deadconn->priv = privsav; | |
4d7c1bfb | 176 | |
177 | return; | |
9de3ca7e | 178 | } |
179 | ||
be67fdd0 | 180 | /** |
181 | * aim_getconn_type - Find a connection of a specific type | |
182 | * @sess: Session to search | |
183 | * @type: Type of connection to look for | |
184 | * | |
185 | * Searches for a connection of the specified type in the | |
186 | * specified session. Returns the first connection of that | |
187 | * type found. | |
188 | * | |
189 | */ | |
78b3fb13 | 190 | faim_internal struct aim_conn_t *aim_getconn_type(struct aim_session_t *sess, |
191 | int type) | |
9de3ca7e | 192 | { |
040457cc | 193 | struct aim_conn_t *cur; |
194 | ||
195 | faim_mutex_lock(&sess->connlistlock); | |
196 | for (cur = sess->connlist; cur; cur = cur->next) { | |
22517493 | 197 | if ((cur->type == type) && !(cur->status & AIM_CONN_STATUS_INPROGRESS)) |
040457cc | 198 | break; |
199 | } | |
200 | faim_mutex_unlock(&sess->connlistlock); | |
201 | return cur; | |
9de3ca7e | 202 | } |
203 | ||
be67fdd0 | 204 | /** |
205 | * aim_proxyconnect - An extrememly quick and dirty SOCKS5 interface. | |
206 | * @sess: Session to connect | |
207 | * @host: Host to connect to | |
208 | * @port: Port to connect to | |
209 | * @statusret: Return value of the connection | |
210 | * | |
211 | * Attempts to connect to the specified host via the configured | |
212 | * proxy settings, if present. If no proxy is configured for | |
213 | * this session, the connection is done directly. | |
214 | * | |
bb0dc593 | 215 | */ |
216 | static int aim_proxyconnect(struct aim_session_t *sess, | |
217 | char *host, unsigned short port, | |
218 | int *statusret) | |
219 | { | |
220 | int fd = -1; | |
221 | ||
222 | if (strlen(sess->socksproxy.server)) { /* connecting via proxy */ | |
223 | int i; | |
224 | unsigned char buf[512]; | |
225 | struct sockaddr_in sa; | |
226 | struct hostent *hp; | |
227 | char *proxy; | |
228 | unsigned short proxyport = 1080; | |
229 | ||
230 | for(i=0;i<(int)strlen(sess->socksproxy.server);i++) { | |
231 | if (sess->socksproxy.server[i] == ':') { | |
232 | proxyport = atoi(&(sess->socksproxy.server[i+1])); | |
233 | break; | |
234 | } | |
235 | } | |
236 | proxy = (char *)malloc(i+1); | |
237 | strncpy(proxy, sess->socksproxy.server, i); | |
238 | proxy[i] = '\0'; | |
239 | ||
240 | if (!(hp = gethostbyname(proxy))) { | |
241 | printf("proxyconnect: unable to resolve proxy name\n"); | |
242 | *statusret = (h_errno | AIM_CONN_STATUS_RESOLVERR); | |
243 | return -1; | |
244 | } | |
245 | free(proxy); | |
246 | ||
247 | memset(&sa.sin_zero, 0, 8); | |
248 | sa.sin_port = htons(proxyport); | |
249 | memcpy(&sa.sin_addr, hp->h_addr, hp->h_length); | |
250 | sa.sin_family = hp->h_addrtype; | |
251 | ||
252 | fd = socket(hp->h_addrtype, SOCK_STREAM, 0); | |
253 | if (connect(fd, (struct sockaddr *)&sa, sizeof(struct sockaddr_in)) < 0) { | |
254 | printf("proxyconnect: unable to connect to proxy\n"); | |
255 | close(fd); | |
256 | return -1; | |
257 | } | |
258 | ||
259 | i = 0; | |
260 | buf[0] = 0x05; /* SOCKS version 5 */ | |
261 | if (strlen(sess->socksproxy.username)) { | |
262 | buf[1] = 0x02; /* two methods */ | |
263 | buf[2] = 0x00; /* no authentication */ | |
264 | buf[3] = 0x02; /* username/password authentication */ | |
265 | i = 4; | |
266 | } else { | |
267 | buf[1] = 0x01; | |
268 | buf[2] = 0x00; | |
269 | i = 3; | |
270 | } | |
271 | ||
272 | if (write(fd, buf, i) < i) { | |
273 | *statusret = errno; | |
274 | close(fd); | |
275 | return -1; | |
276 | } | |
277 | ||
278 | if (read(fd, buf, 2) < 2) { | |
279 | *statusret = errno; | |
280 | close(fd); | |
281 | return -1; | |
282 | } | |
283 | ||
284 | if ((buf[0] != 0x05) || (buf[1] == 0xff)) { | |
285 | *statusret = EINVAL; | |
286 | close(fd); | |
287 | return -1; | |
288 | } | |
289 | ||
290 | /* check if we're doing username authentication */ | |
291 | if (buf[1] == 0x02) { | |
292 | i = aimutil_put8(buf, 0x01); /* version 1 */ | |
293 | i += aimutil_put8(buf+i, strlen(sess->socksproxy.username)); | |
294 | i += aimutil_putstr(buf+i, sess->socksproxy.username, strlen(sess->socksproxy.username)); | |
295 | i += aimutil_put8(buf+i, strlen(sess->socksproxy.password)); | |
296 | i += aimutil_putstr(buf+i, sess->socksproxy.password, strlen(sess->socksproxy.password)); | |
297 | if (write(fd, buf, i) < i) { | |
298 | *statusret = errno; | |
299 | close(fd); | |
300 | return -1; | |
301 | } | |
302 | if (read(fd, buf, 2) < 2) { | |
303 | *statusret = errno; | |
304 | close(fd); | |
305 | return -1; | |
306 | } | |
307 | if ((buf[0] != 0x01) || (buf[1] != 0x00)) { | |
308 | *statusret = EINVAL; | |
309 | close(fd); | |
310 | return -1; | |
311 | } | |
312 | } | |
313 | ||
314 | i = aimutil_put8(buf, 0x05); | |
315 | i += aimutil_put8(buf+i, 0x01); /* CONNECT */ | |
316 | i += aimutil_put8(buf+i, 0x00); /* reserved */ | |
317 | i += aimutil_put8(buf+i, 0x03); /* address type: host name */ | |
318 | i += aimutil_put8(buf+i, strlen(host)); | |
319 | i += aimutil_putstr(buf+i, host, strlen(host)); | |
320 | i += aimutil_put16(buf+i, port); | |
321 | ||
322 | if (write(fd, buf, i) < i) { | |
323 | *statusret = errno; | |
324 | close(fd); | |
325 | return -1; | |
326 | } | |
327 | if (read(fd, buf, 10) < 10) { | |
328 | *statusret = errno; | |
329 | close(fd); | |
330 | return -1; | |
331 | } | |
332 | if ((buf[0] != 0x05) || (buf[1] != 0x00)) { | |
333 | *statusret = EINVAL; | |
334 | close(fd); | |
335 | return -1; | |
336 | } | |
337 | ||
338 | } else { /* connecting directly */ | |
339 | struct sockaddr_in sa; | |
340 | struct hostent *hp; | |
341 | ||
342 | if (!(hp = gethostbyname(host))) { | |
343 | *statusret = (h_errno | AIM_CONN_STATUS_RESOLVERR); | |
344 | return -1; | |
345 | } | |
346 | ||
22517493 | 347 | memset(&sa, 0, sizeof(struct sockaddr_in)); |
bb0dc593 | 348 | sa.sin_port = htons(port); |
349 | memcpy(&sa.sin_addr, hp->h_addr, hp->h_length); | |
350 | sa.sin_family = hp->h_addrtype; | |
351 | ||
352 | fd = socket(hp->h_addrtype, SOCK_STREAM, 0); | |
22517493 | 353 | |
354 | if (sess->flags & AIM_SESS_FLAGS_NONBLOCKCONNECT) | |
355 | fcntl(fd, F_SETFL, O_NONBLOCK); /* XXX save flags */ | |
356 | ||
bb0dc593 | 357 | if (connect(fd, (struct sockaddr *)&sa, sizeof(struct sockaddr_in)) < 0) { |
22517493 | 358 | if (sess->flags & AIM_SESS_FLAGS_NONBLOCKCONNECT) { |
359 | if ((errno == EINPROGRESS) || (errno == EINTR)) { | |
360 | if (statusret) | |
361 | *statusret |= AIM_CONN_STATUS_INPROGRESS; | |
362 | return fd; | |
363 | } | |
364 | } | |
bb0dc593 | 365 | close(fd); |
366 | fd = -1; | |
367 | } | |
368 | } | |
369 | return fd; | |
370 | } | |
371 | ||
be67fdd0 | 372 | /** |
373 | * aim_newconn - Open a new connection | |
374 | * @sess: Session to create connection in | |
375 | * @type: Type of connection to create | |
376 | * @dest: Host to connect to (in "host:port" syntax) | |
9de3ca7e | 377 | * |
be67fdd0 | 378 | * Opens a new connection to the specified dest host of specified |
379 | * type, using the proxy settings if available. If @host is %NULL, | |
380 | * the connection is allocated and returned, but no connection | |
381 | * is made. | |
9de3ca7e | 382 | * |
9de3ca7e | 383 | * FIXME: Return errors in a more sane way. |
384 | * | |
385 | */ | |
78b3fb13 | 386 | faim_export struct aim_conn_t *aim_newconn(struct aim_session_t *sess, |
387 | int type, char *dest) | |
9de3ca7e | 388 | { |
389 | struct aim_conn_t *connstruct; | |
390 | int ret; | |
9de3ca7e | 391 | u_short port = FAIM_LOGIN_PORT; |
a25832e6 | 392 | char *host = NULL; |
9de3ca7e | 393 | int i=0; |
040457cc | 394 | |
e6b05d80 | 395 | if ((connstruct=aim_conn_getnext(sess))==NULL) |
9de3ca7e | 396 | return NULL; |
397 | ||
040457cc | 398 | faim_mutex_lock(&connstruct->active); |
399 | ||
9de3ca7e | 400 | connstruct->type = type; |
401 | ||
e6b05d80 | 402 | if (!dest) { /* just allocate a struct */ |
403 | connstruct->fd = -1; | |
404 | connstruct->status = 0; | |
040457cc | 405 | faim_mutex_unlock(&connstruct->active); |
e6b05d80 | 406 | return connstruct; |
407 | } | |
408 | ||
9de3ca7e | 409 | /* |
410 | * As of 23 Jul 1999, AOL now sends the port number, preceded by a | |
411 | * colon, in the BOS redirect. This fatally breaks all previous | |
412 | * libfaims. Bad, bad AOL. | |
413 | * | |
414 | * We put this here to catch every case. | |
415 | * | |
416 | */ | |
417 | ||
5ac21963 | 418 | for(i=0;i<(int)strlen(dest);i++) { |
e88ba395 | 419 | if (dest[i] == ':') { |
420 | port = atoi(&(dest[i+1])); | |
421 | break; | |
9de3ca7e | 422 | } |
e88ba395 | 423 | } |
a25832e6 | 424 | host = (char *)malloc(i+1); |
425 | strncpy(host, dest, i); | |
9ba272ca | 426 | host[i] = '\0'; |
427 | ||
bb0dc593 | 428 | if ((ret = aim_proxyconnect(sess, host, port, &connstruct->status)) < 0) { |
e88ba395 | 429 | connstruct->fd = -1; |
430 | connstruct->status = (errno | AIM_CONN_STATUS_CONNERR); | |
bb0dc593 | 431 | free(host); |
040457cc | 432 | faim_mutex_unlock(&connstruct->active); |
e88ba395 | 433 | return connstruct; |
bb0dc593 | 434 | } else |
435 | connstruct->fd = ret; | |
a25832e6 | 436 | |
040457cc | 437 | faim_mutex_unlock(&connstruct->active); |
438 | ||
bb0dc593 | 439 | free(host); |
440 | ||
9de3ca7e | 441 | return connstruct; |
442 | } | |
443 | ||
be67fdd0 | 444 | /** |
445 | * aim_conngetmaxfd - Return the highest valued file discriptor in session | |
446 | * @sess: Session to search | |
447 | * | |
448 | * Returns the highest valued filed descriptor of all open | |
449 | * connections in @sess. | |
450 | * | |
451 | */ | |
78b3fb13 | 452 | faim_export int aim_conngetmaxfd(struct aim_session_t *sess) |
9de3ca7e | 453 | { |
040457cc | 454 | int j = 0; |
455 | struct aim_conn_t *cur; | |
456 | ||
457 | faim_mutex_lock(&sess->connlistlock); | |
458 | for (cur = sess->connlist; cur; cur = cur->next) { | |
459 | if (cur->fd > j) | |
460 | j = cur->fd; | |
461 | } | |
462 | faim_mutex_unlock(&sess->connlistlock); | |
e88ba395 | 463 | |
9de3ca7e | 464 | return j; |
465 | } | |
466 | ||
be67fdd0 | 467 | /** |
468 | * aim_countconn - Return the number of open connections in the session | |
469 | * @sess: Session to look at | |
470 | * | |
471 | * Returns the number of number connections in @sess. | |
472 | * | |
473 | */ | |
78b3fb13 | 474 | static int aim_countconn(struct aim_session_t *sess) |
9de3ca7e | 475 | { |
040457cc | 476 | int cnt = 0; |
477 | struct aim_conn_t *cur; | |
478 | ||
479 | faim_mutex_lock(&sess->connlistlock); | |
480 | for (cur = sess->connlist; cur; cur = cur->next) | |
481 | cnt++; | |
482 | faim_mutex_unlock(&sess->connlistlock); | |
e88ba395 | 483 | |
9de3ca7e | 484 | return cnt; |
485 | } | |
486 | ||
be67fdd0 | 487 | /** |
488 | * aim_conn_in_sess - Predicate to test the precense of a connection in a sess | |
489 | * @sess: Session to look in | |
490 | * @conn: Connection to look for | |
491 | * | |
492 | * Searches @sess for the passed connection. Returns 1 if its present, | |
493 | * zero otherwise. | |
494 | * | |
495 | */ | |
3b101546 | 496 | faim_export int aim_conn_in_sess(struct aim_session_t *sess, struct aim_conn_t *conn) |
497 | { | |
498 | struct aim_conn_t *cur; | |
499 | ||
500 | faim_mutex_lock(&sess->connlistlock); | |
501 | for(cur = sess->connlist; cur; cur = cur->next) | |
502 | if(cur == conn) { | |
503 | faim_mutex_unlock(&sess->connlistlock); | |
504 | return 1; | |
505 | } | |
506 | faim_mutex_unlock(&sess->connlistlock); | |
507 | return 0; | |
508 | } | |
509 | ||
be67fdd0 | 510 | /** |
511 | * aim_select - Wait for a socket with data or timeout | |
512 | * @sess: Session to wait on | |
513 | * @timeout: How long to wait | |
514 | * @status: Return status | |
9de3ca7e | 515 | * |
516 | * Waits for a socket with data or for timeout, whichever comes first. | |
be67fdd0 | 517 | * See select(). |
9de3ca7e | 518 | * |
b8d0da45 | 519 | * Return codes in *status: |
be67fdd0 | 520 | * -1 error in select() (%NULL returned) |
521 | * 0 no events pending (%NULL returned) | |
522 | * 1 outgoing data pending (%NULL returned) | |
b8d0da45 | 523 | * 2 incoming data pending (connection with pending data returned) |
524 | * | |
040457cc | 525 | * XXX: we could probably stand to do a little courser locking here. |
526 | * | |
9de3ca7e | 527 | */ |
78b3fb13 | 528 | faim_export struct aim_conn_t *aim_select(struct aim_session_t *sess, |
529 | struct timeval *timeout, int *status) | |
9de3ca7e | 530 | { |
040457cc | 531 | struct aim_conn_t *cur; |
22517493 | 532 | fd_set fds, wfds; |
040457cc | 533 | int maxfd = 0; |
22517493 | 534 | int i, haveconnecting = 0; |
9de3ca7e | 535 | |
040457cc | 536 | faim_mutex_lock(&sess->connlistlock); |
537 | if (sess->connlist == NULL) { | |
538 | faim_mutex_unlock(&sess->connlistlock); | |
68ac63c2 | 539 | *status = -1; |
540 | return NULL; | |
040457cc | 541 | } |
542 | faim_mutex_unlock(&sess->connlistlock); | |
f1a5efe0 | 543 | |
9de3ca7e | 544 | FD_ZERO(&fds); |
22517493 | 545 | FD_ZERO(&wfds); |
040457cc | 546 | maxfd = 0; |
547 | ||
548 | faim_mutex_lock(&sess->connlistlock); | |
549 | for (cur = sess->connlist; cur; cur = cur->next) { | |
22517493 | 550 | if (cur->status & AIM_CONN_STATUS_INPROGRESS) { |
551 | FD_SET(cur->fd, &wfds); | |
552 | haveconnecting++; | |
553 | } | |
040457cc | 554 | FD_SET(cur->fd, &fds); |
555 | if (cur->fd > maxfd) | |
556 | maxfd = cur->fd; | |
557 | } | |
558 | faim_mutex_unlock(&sess->connlistlock); | |
559 | ||
22517493 | 560 | /* |
561 | * If we have data waiting to be sent, return | |
562 | * | |
563 | * We have to not do this if theres at least one | |
564 | * connection thats still connecting, since that connection | |
565 | * may have queued data and this return would prevent | |
566 | * the connection from ever completing! This is a major | |
567 | * inadequacy of the libfaim way of doing things. It means | |
568 | * that nothing can transmit as long as there's connecting | |
569 | * sockets. Evil. | |
570 | * | |
571 | * But its still better than having blocking connects. | |
572 | * | |
573 | */ | |
574 | if (!haveconnecting && (sess->queue_outgoing != NULL)) { | |
575 | *status = 1; | |
576 | return NULL; | |
577 | } | |
578 | ||
579 | if ((i = select(maxfd+1, &fds, &wfds, NULL, timeout))>=1) { | |
040457cc | 580 | faim_mutex_lock(&sess->connlistlock); |
581 | for (cur = sess->connlist; cur; cur = cur->next) { | |
22517493 | 582 | if ((FD_ISSET(cur->fd, &fds)) || |
583 | ((cur->status & AIM_CONN_STATUS_INPROGRESS) && | |
584 | FD_ISSET(cur->fd, &wfds))) { | |
040457cc | 585 | *status = 2; |
586 | faim_mutex_unlock(&sess->connlistlock); | |
22517493 | 587 | return cur; /* XXX race condition here -- shouldnt unlock connlist */ |
040457cc | 588 | } |
589 | } | |
9797852c | 590 | *status = 0; /* shouldn't happen */ |
591 | } else if ((i == -1) && (errno == EINTR)) /* treat interrupts as a timeout */ | |
592 | *status = 0; | |
593 | else | |
594 | *status = i; /* can be 0 or -1 */ | |
b8d0da45 | 595 | |
040457cc | 596 | faim_mutex_unlock(&sess->connlistlock); |
b8d0da45 | 597 | return NULL; /* no waiting or error, return */ |
9de3ca7e | 598 | } |
599 | ||
be67fdd0 | 600 | /** |
601 | * aim_conn_isready - Test if a connection is marked ready | |
602 | * @conn: Connection to test | |
603 | * | |
604 | * Returns true if the connection is ready, false otherwise. | |
605 | * Returns -1 if the connection is invalid. | |
606 | * | |
607 | * XXX: This is deprecated. | |
608 | * | |
609 | */ | |
78b3fb13 | 610 | faim_export int aim_conn_isready(struct aim_conn_t *conn) |
9de3ca7e | 611 | { |
612 | if (conn) | |
613 | return (conn->status & 0x0001); | |
040457cc | 614 | return -1; |
9de3ca7e | 615 | } |
616 | ||
be67fdd0 | 617 | /** |
618 | * aim_conn_setstatus - Set the status of a connection | |
619 | * @conn: Connection | |
620 | * @status: New status | |
621 | * | |
622 | * @newstatus is %XOR'd with the previous value of the connection | |
623 | * status and returned. Returns -1 if the connection is invalid. | |
624 | * | |
22517493 | 625 | * This isn't real useful. |
626 | * | |
be67fdd0 | 627 | */ |
78b3fb13 | 628 | faim_export int aim_conn_setstatus(struct aim_conn_t *conn, int status) |
9de3ca7e | 629 | { |
040457cc | 630 | int val; |
631 | ||
632 | if (!conn) | |
9de3ca7e | 633 | return -1; |
040457cc | 634 | |
635 | faim_mutex_lock(&conn->active); | |
636 | val = conn->status ^= status; | |
637 | faim_mutex_unlock(&conn->active); | |
638 | return val; | |
9de3ca7e | 639 | } |
640 | ||
be67fdd0 | 641 | /** |
642 | * aim_conn_setlatency - Set a forced latency value for connection | |
643 | * @conn: Conn to set latency for | |
644 | * @newval: Number of seconds to force between transmits | |
645 | * | |
646 | * Causes @newval seconds to be spent between transmits on a connection. | |
647 | * | |
648 | * This is my lame attempt at overcoming not understanding the rate | |
649 | * limiting. | |
650 | * | |
651 | * XXX: This should really be replaced with something that scales and | |
652 | * backs off like the real rate limiting does. | |
653 | * | |
654 | */ | |
78b3fb13 | 655 | faim_export int aim_conn_setlatency(struct aim_conn_t *conn, int newval) |
9de3ca7e | 656 | { |
657 | if (!conn) | |
658 | return -1; | |
040457cc | 659 | |
660 | faim_mutex_lock(&conn->active); | |
9de3ca7e | 661 | conn->forcedlatency = newval; |
662 | conn->lastactivity = 0; /* reset this just to make sure */ | |
040457cc | 663 | faim_mutex_unlock(&conn->active); |
9de3ca7e | 664 | |
665 | return 0; | |
666 | } | |
a25832e6 | 667 | |
be67fdd0 | 668 | /** |
669 | * aim_setupproxy - Configure a proxy for this session | |
670 | * @sess: Session to set proxy for | |
671 | * @server: SOCKS server | |
672 | * @username: SOCKS username | |
673 | * @password: SOCKS password | |
674 | * | |
bb0dc593 | 675 | * Call this with your SOCKS5 proxy server parameters before |
be67fdd0 | 676 | * the first call to aim_newconn(). If called with all %NULL |
bb0dc593 | 677 | * args, it will clear out a previously set proxy. |
678 | * | |
be67fdd0 | 679 | * Set username and password to %NULL if not applicable. |
bb0dc593 | 680 | * |
681 | */ | |
682 | faim_export void aim_setupproxy(struct aim_session_t *sess, char *server, char *username, char *password) | |
683 | { | |
684 | /* clear out the proxy info */ | |
685 | if (!server || !strlen(server)) { | |
686 | memset(sess->socksproxy.server, 0, sizeof(sess->socksproxy.server)); | |
687 | memset(sess->socksproxy.username, 0, sizeof(sess->socksproxy.username)); | |
688 | memset(sess->socksproxy.password, 0, sizeof(sess->socksproxy.password)); | |
689 | return; | |
690 | } | |
691 | ||
692 | strncpy(sess->socksproxy.server, server, sizeof(sess->socksproxy.server)); | |
693 | if (username && strlen(username)) | |
694 | strncpy(sess->socksproxy.username, username, sizeof(sess->socksproxy.username)); | |
695 | if (password && strlen(password)) | |
696 | strncpy(sess->socksproxy.password, password, sizeof(sess->socksproxy.password)); | |
697 | return; | |
698 | } | |
699 | ||
be67fdd0 | 700 | /** |
701 | * aim_session_init - Initializes a session structure | |
702 | * @sess: Session to initialize | |
22517493 | 703 | * @flags: Flags to use. Any of %AIM_SESS_FLAGS %OR'd together. |
be67fdd0 | 704 | * |
705 | * Sets up the initial values for a session. | |
706 | * | |
707 | */ | |
22517493 | 708 | faim_export void aim_session_init(struct aim_session_t *sess, unsigned long flags) |
a25832e6 | 709 | { |
a25832e6 | 710 | if (!sess) |
711 | return; | |
712 | ||
040457cc | 713 | memset(sess, 0, sizeof(struct aim_session_t)); |
e88ba395 | 714 | aim_connrst(sess); |
a25832e6 | 715 | sess->queue_outgoing = NULL; |
716 | sess->queue_incoming = NULL; | |
0c20631f | 717 | sess->pendingjoin = NULL; |
b13c9e13 | 718 | aim_initsnachash(sess); |
a25832e6 | 719 | sess->snac_nextid = 0x00000001; |
22517493 | 720 | |
721 | sess->flags = 0; | |
722 | ||
723 | /* | |
724 | * Default to SNAC login unless XORLOGIN is explicitly set. | |
725 | */ | |
726 | if (!(flags & AIM_SESS_FLAGS_XORLOGIN)) | |
727 | sess->flags |= AIM_SESS_FLAGS_SNACLOGIN; | |
728 | sess->flags |= flags; | |
a25832e6 | 729 | |
e88ba395 | 730 | /* |
731 | * This must always be set. Default to the queue-based | |
732 | * version for back-compatibility. | |
733 | */ | |
734 | sess->tx_enqueue = &aim_tx_enqueue__queuebased; | |
735 | ||
a25832e6 | 736 | return; |
737 | } | |
22517493 | 738 | |
739 | /** | |
740 | * aim_conn_isconnecting - Determine if a connection is connecting | |
741 | * @conn: Connection to examine | |
742 | * | |
743 | * Returns nonzero if the connection is in the process of | |
744 | * connecting (or if it just completed and aim_conn_completeconnect() | |
745 | * has yet to be called on it). | |
746 | * | |
747 | */ | |
748 | faim_export int aim_conn_isconnecting(struct aim_conn_t *conn) | |
749 | { | |
750 | if (!conn) | |
751 | return 0; | |
752 | return (conn->status & AIM_CONN_STATUS_INPROGRESS)?1:0; | |
753 | } | |
754 | ||
755 | faim_export int aim_conn_completeconnect(struct aim_session_t *sess, struct aim_conn_t *conn) | |
756 | { | |
757 | fd_set fds, wfds; | |
758 | struct timeval tv; | |
759 | int res, error = ETIMEDOUT; | |
760 | rxcallback_t userfunc; | |
761 | ||
762 | if (!conn || (conn->fd == -1)) | |
763 | return -1; | |
764 | ||
765 | if (!(conn->status & AIM_CONN_STATUS_INPROGRESS)) | |
766 | return -1; | |
767 | ||
768 | FD_ZERO(&fds); | |
769 | FD_SET(conn->fd, &fds); | |
770 | FD_ZERO(&wfds); | |
771 | FD_SET(conn->fd, &wfds); | |
772 | tv.tv_sec = 0; | |
773 | tv.tv_usec = 0; | |
774 | ||
775 | if ((res = select(conn->fd+1, &fds, &wfds, NULL, &tv)) == -1) { | |
776 | error = errno; | |
777 | aim_conn_close(conn); | |
778 | errno = error; | |
779 | return -1; | |
780 | } else if (res == 0) { | |
781 | printf("faim: aim_conn_completeconnect: false alarm on %d\n", conn->fd); | |
782 | return 0; /* hasn't really completed yet... */ | |
783 | } | |
784 | ||
785 | if (FD_ISSET(conn->fd, &fds) || FD_ISSET(conn->fd, &wfds)) { | |
786 | int len = sizeof(error); | |
787 | ||
788 | if (getsockopt(conn->fd, SOL_SOCKET, SO_ERROR, &error, &len) < 0) | |
789 | error = errno; | |
790 | } | |
791 | ||
792 | if (error) { | |
793 | aim_conn_close(conn); | |
794 | errno = error; | |
795 | return -1; | |
796 | } | |
797 | ||
798 | fcntl(conn->fd, F_SETFL, 0); /* XXX should restore original flags */ | |
799 | ||
800 | conn->status &= ~AIM_CONN_STATUS_INPROGRESS; | |
801 | ||
802 | if ((userfunc = aim_callhandler(conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_CONNCOMPLETE))) | |
803 | userfunc(sess, NULL, conn); | |
804 | ||
805 | /* Flush out the queues if there was something waiting for this conn */ | |
806 | aim_tx_flushqueue(sess); | |
807 | ||
808 | return 0; | |
809 | } |