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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 | ||
9d2a3582 | 41 | /** |
42 | * aim_conn_init - Reset a connection to default values. | |
43 | * @deadconn: Connection to be reset | |
44 | * | |
45 | * Initializes and/or resets a connection structure. | |
46 | * | |
47 | */ | |
48 | static void aim_conn_init(struct aim_conn_t *deadconn) | |
49 | { | |
50 | if (!deadconn) | |
51 | return; | |
52 | ||
53 | deadconn->fd = -1; | |
54 | deadconn->subtype = -1; | |
55 | deadconn->type = -1; | |
56 | deadconn->seqnum = 0; | |
57 | deadconn->lastactivity = 0; | |
58 | deadconn->forcedlatency = 0; | |
59 | deadconn->handlerlist = NULL; | |
60 | deadconn->priv = NULL; | |
61 | faim_mutex_init(&deadconn->active); | |
62 | faim_mutex_init(&deadconn->seqnum_lock); | |
63 | ||
64 | return; | |
65 | } | |
66 | ||
be67fdd0 | 67 | /** |
68 | * aim_conn_getnext - Gets a new connection structure. | |
69 | * @sess: Session | |
70 | * | |
71 | * Allocate a new empty connection structure. | |
72 | * | |
040457cc | 73 | */ |
78b3fb13 | 74 | faim_internal struct aim_conn_t *aim_conn_getnext(struct aim_session_t *sess) |
9de3ca7e | 75 | { |
040457cc | 76 | struct aim_conn_t *newconn, *cur; |
77 | ||
78 | if (!(newconn = malloc(sizeof(struct aim_conn_t)))) | |
79 | return NULL; | |
80 | ||
81 | memset(newconn, 0, sizeof(struct aim_conn_t)); | |
9d2a3582 | 82 | aim_conn_init(newconn); |
040457cc | 83 | newconn->next = NULL; |
84 | ||
85 | faim_mutex_lock(&sess->connlistlock); | |
86 | if (sess->connlist == NULL) | |
87 | sess->connlist = newconn; | |
88 | else { | |
89 | for (cur = sess->connlist; cur->next; cur = cur->next) | |
90 | ; | |
91 | cur->next = newconn; | |
92 | } | |
93 | faim_mutex_unlock(&sess->connlistlock); | |
94 | ||
95 | return newconn; | |
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 | ||
9d2a3582 | 134 | if ((*deadconn)->fd != -1) |
135 | aim_conn_close(*deadconn); | |
f8ac5020 | 136 | if ((*deadconn)->priv) |
137 | free((*deadconn)->priv); | |
040457cc | 138 | free(*deadconn); |
139 | deadconn = NULL; | |
140 | ||
141 | return; | |
9de3ca7e | 142 | } |
143 | ||
be67fdd0 | 144 | /** |
145 | * aim_conn_close - Close a connection | |
146 | * @deadconn: Connection to close | |
147 | * | |
148 | * Close (but not free) a connection. | |
149 | * | |
9d2a3582 | 150 | * This leaves everything untouched except for clearing the |
151 | * handler list and setting the fd to -1 (used to recognize | |
152 | * dead connections). | |
153 | * | |
be67fdd0 | 154 | */ |
78b3fb13 | 155 | faim_export void aim_conn_close(struct aim_conn_t *deadconn) |
9de3ca7e | 156 | { |
4d7c1bfb | 157 | |
158 | faim_mutex_destroy(&deadconn->active); | |
159 | faim_mutex_destroy(&deadconn->seqnum_lock); | |
9de3ca7e | 160 | if (deadconn->fd >= 3) |
161 | close(deadconn->fd); | |
9d2a3582 | 162 | deadconn->fd = -1; |
0252e8c0 | 163 | if (deadconn->handlerlist) |
164 | aim_clearhandlers(deadconn); | |
3369f8d4 | 165 | |
4d7c1bfb | 166 | return; |
9de3ca7e | 167 | } |
168 | ||
be67fdd0 | 169 | /** |
170 | * aim_getconn_type - Find a connection of a specific type | |
171 | * @sess: Session to search | |
172 | * @type: Type of connection to look for | |
173 | * | |
174 | * Searches for a connection of the specified type in the | |
175 | * specified session. Returns the first connection of that | |
176 | * type found. | |
177 | * | |
178 | */ | |
78b3fb13 | 179 | faim_internal struct aim_conn_t *aim_getconn_type(struct aim_session_t *sess, |
180 | int type) | |
9de3ca7e | 181 | { |
040457cc | 182 | struct aim_conn_t *cur; |
183 | ||
184 | faim_mutex_lock(&sess->connlistlock); | |
185 | for (cur = sess->connlist; cur; cur = cur->next) { | |
22517493 | 186 | if ((cur->type == type) && !(cur->status & AIM_CONN_STATUS_INPROGRESS)) |
040457cc | 187 | break; |
188 | } | |
189 | faim_mutex_unlock(&sess->connlistlock); | |
190 | return cur; | |
9de3ca7e | 191 | } |
192 | ||
be67fdd0 | 193 | /** |
194 | * aim_proxyconnect - An extrememly quick and dirty SOCKS5 interface. | |
195 | * @sess: Session to connect | |
196 | * @host: Host to connect to | |
197 | * @port: Port to connect to | |
198 | * @statusret: Return value of the connection | |
199 | * | |
200 | * Attempts to connect to the specified host via the configured | |
201 | * proxy settings, if present. If no proxy is configured for | |
202 | * this session, the connection is done directly. | |
203 | * | |
bb0dc593 | 204 | */ |
205 | static int aim_proxyconnect(struct aim_session_t *sess, | |
206 | char *host, unsigned short port, | |
207 | int *statusret) | |
208 | { | |
209 | int fd = -1; | |
210 | ||
211 | if (strlen(sess->socksproxy.server)) { /* connecting via proxy */ | |
212 | int i; | |
213 | unsigned char buf[512]; | |
214 | struct sockaddr_in sa; | |
215 | struct hostent *hp; | |
216 | char *proxy; | |
217 | unsigned short proxyport = 1080; | |
218 | ||
219 | for(i=0;i<(int)strlen(sess->socksproxy.server);i++) { | |
220 | if (sess->socksproxy.server[i] == ':') { | |
221 | proxyport = atoi(&(sess->socksproxy.server[i+1])); | |
222 | break; | |
223 | } | |
224 | } | |
225 | proxy = (char *)malloc(i+1); | |
226 | strncpy(proxy, sess->socksproxy.server, i); | |
227 | proxy[i] = '\0'; | |
228 | ||
229 | if (!(hp = gethostbyname(proxy))) { | |
230 | printf("proxyconnect: unable to resolve proxy name\n"); | |
231 | *statusret = (h_errno | AIM_CONN_STATUS_RESOLVERR); | |
232 | return -1; | |
233 | } | |
234 | free(proxy); | |
235 | ||
236 | memset(&sa.sin_zero, 0, 8); | |
237 | sa.sin_port = htons(proxyport); | |
238 | memcpy(&sa.sin_addr, hp->h_addr, hp->h_length); | |
239 | sa.sin_family = hp->h_addrtype; | |
240 | ||
241 | fd = socket(hp->h_addrtype, SOCK_STREAM, 0); | |
242 | if (connect(fd, (struct sockaddr *)&sa, sizeof(struct sockaddr_in)) < 0) { | |
243 | printf("proxyconnect: unable to connect to proxy\n"); | |
244 | close(fd); | |
245 | return -1; | |
246 | } | |
247 | ||
248 | i = 0; | |
249 | buf[0] = 0x05; /* SOCKS version 5 */ | |
250 | if (strlen(sess->socksproxy.username)) { | |
251 | buf[1] = 0x02; /* two methods */ | |
252 | buf[2] = 0x00; /* no authentication */ | |
253 | buf[3] = 0x02; /* username/password authentication */ | |
254 | i = 4; | |
255 | } else { | |
256 | buf[1] = 0x01; | |
257 | buf[2] = 0x00; | |
258 | i = 3; | |
259 | } | |
260 | ||
261 | if (write(fd, buf, i) < i) { | |
262 | *statusret = errno; | |
263 | close(fd); | |
264 | return -1; | |
265 | } | |
266 | ||
267 | if (read(fd, buf, 2) < 2) { | |
268 | *statusret = errno; | |
269 | close(fd); | |
270 | return -1; | |
271 | } | |
272 | ||
273 | if ((buf[0] != 0x05) || (buf[1] == 0xff)) { | |
274 | *statusret = EINVAL; | |
275 | close(fd); | |
276 | return -1; | |
277 | } | |
278 | ||
279 | /* check if we're doing username authentication */ | |
280 | if (buf[1] == 0x02) { | |
281 | i = aimutil_put8(buf, 0x01); /* version 1 */ | |
282 | i += aimutil_put8(buf+i, strlen(sess->socksproxy.username)); | |
283 | i += aimutil_putstr(buf+i, sess->socksproxy.username, strlen(sess->socksproxy.username)); | |
284 | i += aimutil_put8(buf+i, strlen(sess->socksproxy.password)); | |
285 | i += aimutil_putstr(buf+i, sess->socksproxy.password, strlen(sess->socksproxy.password)); | |
286 | if (write(fd, buf, i) < i) { | |
287 | *statusret = errno; | |
288 | close(fd); | |
289 | return -1; | |
290 | } | |
291 | if (read(fd, buf, 2) < 2) { | |
292 | *statusret = errno; | |
293 | close(fd); | |
294 | return -1; | |
295 | } | |
296 | if ((buf[0] != 0x01) || (buf[1] != 0x00)) { | |
297 | *statusret = EINVAL; | |
298 | close(fd); | |
299 | return -1; | |
300 | } | |
301 | } | |
302 | ||
303 | i = aimutil_put8(buf, 0x05); | |
304 | i += aimutil_put8(buf+i, 0x01); /* CONNECT */ | |
305 | i += aimutil_put8(buf+i, 0x00); /* reserved */ | |
306 | i += aimutil_put8(buf+i, 0x03); /* address type: host name */ | |
307 | i += aimutil_put8(buf+i, strlen(host)); | |
308 | i += aimutil_putstr(buf+i, host, strlen(host)); | |
309 | i += aimutil_put16(buf+i, port); | |
310 | ||
311 | if (write(fd, buf, i) < i) { | |
312 | *statusret = errno; | |
313 | close(fd); | |
314 | return -1; | |
315 | } | |
316 | if (read(fd, buf, 10) < 10) { | |
317 | *statusret = errno; | |
318 | close(fd); | |
319 | return -1; | |
320 | } | |
321 | if ((buf[0] != 0x05) || (buf[1] != 0x00)) { | |
322 | *statusret = EINVAL; | |
323 | close(fd); | |
324 | return -1; | |
325 | } | |
326 | ||
327 | } else { /* connecting directly */ | |
328 | struct sockaddr_in sa; | |
329 | struct hostent *hp; | |
330 | ||
331 | if (!(hp = gethostbyname(host))) { | |
332 | *statusret = (h_errno | AIM_CONN_STATUS_RESOLVERR); | |
333 | return -1; | |
334 | } | |
335 | ||
22517493 | 336 | memset(&sa, 0, sizeof(struct sockaddr_in)); |
bb0dc593 | 337 | sa.sin_port = htons(port); |
338 | memcpy(&sa.sin_addr, hp->h_addr, hp->h_length); | |
339 | sa.sin_family = hp->h_addrtype; | |
340 | ||
341 | fd = socket(hp->h_addrtype, SOCK_STREAM, 0); | |
22517493 | 342 | |
343 | if (sess->flags & AIM_SESS_FLAGS_NONBLOCKCONNECT) | |
344 | fcntl(fd, F_SETFL, O_NONBLOCK); /* XXX save flags */ | |
345 | ||
bb0dc593 | 346 | if (connect(fd, (struct sockaddr *)&sa, sizeof(struct sockaddr_in)) < 0) { |
22517493 | 347 | if (sess->flags & AIM_SESS_FLAGS_NONBLOCKCONNECT) { |
348 | if ((errno == EINPROGRESS) || (errno == EINTR)) { | |
349 | if (statusret) | |
350 | *statusret |= AIM_CONN_STATUS_INPROGRESS; | |
351 | return fd; | |
352 | } | |
353 | } | |
bb0dc593 | 354 | close(fd); |
355 | fd = -1; | |
356 | } | |
357 | } | |
358 | return fd; | |
359 | } | |
360 | ||
be67fdd0 | 361 | /** |
362 | * aim_newconn - Open a new connection | |
363 | * @sess: Session to create connection in | |
364 | * @type: Type of connection to create | |
365 | * @dest: Host to connect to (in "host:port" syntax) | |
9de3ca7e | 366 | * |
be67fdd0 | 367 | * Opens a new connection to the specified dest host of specified |
368 | * type, using the proxy settings if available. If @host is %NULL, | |
369 | * the connection is allocated and returned, but no connection | |
370 | * is made. | |
9de3ca7e | 371 | * |
9de3ca7e | 372 | * FIXME: Return errors in a more sane way. |
373 | * | |
374 | */ | |
78b3fb13 | 375 | faim_export struct aim_conn_t *aim_newconn(struct aim_session_t *sess, |
376 | int type, char *dest) | |
9de3ca7e | 377 | { |
378 | struct aim_conn_t *connstruct; | |
379 | int ret; | |
9de3ca7e | 380 | u_short port = FAIM_LOGIN_PORT; |
a25832e6 | 381 | char *host = NULL; |
9de3ca7e | 382 | int i=0; |
040457cc | 383 | |
e6b05d80 | 384 | if ((connstruct=aim_conn_getnext(sess))==NULL) |
9de3ca7e | 385 | return NULL; |
386 | ||
040457cc | 387 | faim_mutex_lock(&connstruct->active); |
388 | ||
9de3ca7e | 389 | connstruct->type = type; |
390 | ||
e6b05d80 | 391 | if (!dest) { /* just allocate a struct */ |
392 | connstruct->fd = -1; | |
393 | connstruct->status = 0; | |
040457cc | 394 | faim_mutex_unlock(&connstruct->active); |
e6b05d80 | 395 | return connstruct; |
396 | } | |
397 | ||
9de3ca7e | 398 | /* |
399 | * As of 23 Jul 1999, AOL now sends the port number, preceded by a | |
400 | * colon, in the BOS redirect. This fatally breaks all previous | |
401 | * libfaims. Bad, bad AOL. | |
402 | * | |
403 | * We put this here to catch every case. | |
404 | * | |
405 | */ | |
406 | ||
5ac21963 | 407 | for(i=0;i<(int)strlen(dest);i++) { |
e88ba395 | 408 | if (dest[i] == ':') { |
409 | port = atoi(&(dest[i+1])); | |
410 | break; | |
9de3ca7e | 411 | } |
e88ba395 | 412 | } |
a25832e6 | 413 | host = (char *)malloc(i+1); |
414 | strncpy(host, dest, i); | |
9ba272ca | 415 | host[i] = '\0'; |
416 | ||
bb0dc593 | 417 | if ((ret = aim_proxyconnect(sess, host, port, &connstruct->status)) < 0) { |
e88ba395 | 418 | connstruct->fd = -1; |
419 | connstruct->status = (errno | AIM_CONN_STATUS_CONNERR); | |
bb0dc593 | 420 | free(host); |
040457cc | 421 | faim_mutex_unlock(&connstruct->active); |
e88ba395 | 422 | return connstruct; |
bb0dc593 | 423 | } else |
424 | connstruct->fd = ret; | |
a25832e6 | 425 | |
040457cc | 426 | faim_mutex_unlock(&connstruct->active); |
427 | ||
bb0dc593 | 428 | free(host); |
429 | ||
9de3ca7e | 430 | return connstruct; |
431 | } | |
432 | ||
be67fdd0 | 433 | /** |
434 | * aim_conngetmaxfd - Return the highest valued file discriptor in session | |
435 | * @sess: Session to search | |
436 | * | |
437 | * Returns the highest valued filed descriptor of all open | |
438 | * connections in @sess. | |
439 | * | |
440 | */ | |
78b3fb13 | 441 | faim_export int aim_conngetmaxfd(struct aim_session_t *sess) |
9de3ca7e | 442 | { |
040457cc | 443 | int j = 0; |
444 | struct aim_conn_t *cur; | |
445 | ||
446 | faim_mutex_lock(&sess->connlistlock); | |
447 | for (cur = sess->connlist; cur; cur = cur->next) { | |
448 | if (cur->fd > j) | |
449 | j = cur->fd; | |
450 | } | |
451 | faim_mutex_unlock(&sess->connlistlock); | |
e88ba395 | 452 | |
9de3ca7e | 453 | return j; |
454 | } | |
455 | ||
be67fdd0 | 456 | /** |
457 | * aim_countconn - Return the number of open connections in the session | |
458 | * @sess: Session to look at | |
459 | * | |
460 | * Returns the number of number connections in @sess. | |
461 | * | |
462 | */ | |
78b3fb13 | 463 | static int aim_countconn(struct aim_session_t *sess) |
9de3ca7e | 464 | { |
040457cc | 465 | int cnt = 0; |
466 | struct aim_conn_t *cur; | |
467 | ||
468 | faim_mutex_lock(&sess->connlistlock); | |
469 | for (cur = sess->connlist; cur; cur = cur->next) | |
470 | cnt++; | |
471 | faim_mutex_unlock(&sess->connlistlock); | |
e88ba395 | 472 | |
9de3ca7e | 473 | return cnt; |
474 | } | |
475 | ||
be67fdd0 | 476 | /** |
477 | * aim_conn_in_sess - Predicate to test the precense of a connection in a sess | |
478 | * @sess: Session to look in | |
479 | * @conn: Connection to look for | |
480 | * | |
481 | * Searches @sess for the passed connection. Returns 1 if its present, | |
482 | * zero otherwise. | |
483 | * | |
484 | */ | |
3b101546 | 485 | faim_export int aim_conn_in_sess(struct aim_session_t *sess, struct aim_conn_t *conn) |
486 | { | |
487 | struct aim_conn_t *cur; | |
488 | ||
489 | faim_mutex_lock(&sess->connlistlock); | |
490 | for(cur = sess->connlist; cur; cur = cur->next) | |
491 | if(cur == conn) { | |
492 | faim_mutex_unlock(&sess->connlistlock); | |
493 | return 1; | |
494 | } | |
495 | faim_mutex_unlock(&sess->connlistlock); | |
496 | return 0; | |
497 | } | |
498 | ||
be67fdd0 | 499 | /** |
500 | * aim_select - Wait for a socket with data or timeout | |
501 | * @sess: Session to wait on | |
502 | * @timeout: How long to wait | |
503 | * @status: Return status | |
9de3ca7e | 504 | * |
505 | * Waits for a socket with data or for timeout, whichever comes first. | |
be67fdd0 | 506 | * See select(). |
9de3ca7e | 507 | * |
b8d0da45 | 508 | * Return codes in *status: |
be67fdd0 | 509 | * -1 error in select() (%NULL returned) |
510 | * 0 no events pending (%NULL returned) | |
511 | * 1 outgoing data pending (%NULL returned) | |
b8d0da45 | 512 | * 2 incoming data pending (connection with pending data returned) |
513 | * | |
040457cc | 514 | * XXX: we could probably stand to do a little courser locking here. |
515 | * | |
9de3ca7e | 516 | */ |
78b3fb13 | 517 | faim_export struct aim_conn_t *aim_select(struct aim_session_t *sess, |
518 | struct timeval *timeout, int *status) | |
9de3ca7e | 519 | { |
040457cc | 520 | struct aim_conn_t *cur; |
22517493 | 521 | fd_set fds, wfds; |
040457cc | 522 | int maxfd = 0; |
22517493 | 523 | int i, haveconnecting = 0; |
9de3ca7e | 524 | |
040457cc | 525 | faim_mutex_lock(&sess->connlistlock); |
526 | if (sess->connlist == NULL) { | |
527 | faim_mutex_unlock(&sess->connlistlock); | |
68ac63c2 | 528 | *status = -1; |
529 | return NULL; | |
040457cc | 530 | } |
531 | faim_mutex_unlock(&sess->connlistlock); | |
f1a5efe0 | 532 | |
9de3ca7e | 533 | FD_ZERO(&fds); |
22517493 | 534 | FD_ZERO(&wfds); |
040457cc | 535 | maxfd = 0; |
536 | ||
537 | faim_mutex_lock(&sess->connlistlock); | |
538 | for (cur = sess->connlist; cur; cur = cur->next) { | |
9d2a3582 | 539 | if (cur->fd == -1) { |
540 | /* don't let invalid/dead connections sit around */ | |
541 | *status = 2; | |
542 | faim_mutex_unlock(&sess->connlistlock); | |
543 | return cur; | |
544 | } else if (cur->status & AIM_CONN_STATUS_INPROGRESS) { | |
22517493 | 545 | FD_SET(cur->fd, &wfds); |
546 | haveconnecting++; | |
547 | } | |
040457cc | 548 | FD_SET(cur->fd, &fds); |
549 | if (cur->fd > maxfd) | |
550 | maxfd = cur->fd; | |
551 | } | |
552 | faim_mutex_unlock(&sess->connlistlock); | |
553 | ||
22517493 | 554 | /* |
555 | * If we have data waiting to be sent, return | |
556 | * | |
557 | * We have to not do this if theres at least one | |
558 | * connection thats still connecting, since that connection | |
559 | * may have queued data and this return would prevent | |
560 | * the connection from ever completing! This is a major | |
561 | * inadequacy of the libfaim way of doing things. It means | |
562 | * that nothing can transmit as long as there's connecting | |
563 | * sockets. Evil. | |
564 | * | |
565 | * But its still better than having blocking connects. | |
566 | * | |
567 | */ | |
568 | if (!haveconnecting && (sess->queue_outgoing != NULL)) { | |
569 | *status = 1; | |
570 | return NULL; | |
571 | } | |
572 | ||
573 | if ((i = select(maxfd+1, &fds, &wfds, NULL, timeout))>=1) { | |
040457cc | 574 | faim_mutex_lock(&sess->connlistlock); |
575 | for (cur = sess->connlist; cur; cur = cur->next) { | |
22517493 | 576 | if ((FD_ISSET(cur->fd, &fds)) || |
577 | ((cur->status & AIM_CONN_STATUS_INPROGRESS) && | |
578 | FD_ISSET(cur->fd, &wfds))) { | |
040457cc | 579 | *status = 2; |
580 | faim_mutex_unlock(&sess->connlistlock); | |
22517493 | 581 | return cur; /* XXX race condition here -- shouldnt unlock connlist */ |
040457cc | 582 | } |
583 | } | |
9797852c | 584 | *status = 0; /* shouldn't happen */ |
585 | } else if ((i == -1) && (errno == EINTR)) /* treat interrupts as a timeout */ | |
586 | *status = 0; | |
587 | else | |
588 | *status = i; /* can be 0 or -1 */ | |
b8d0da45 | 589 | |
040457cc | 590 | faim_mutex_unlock(&sess->connlistlock); |
b8d0da45 | 591 | return NULL; /* no waiting or error, return */ |
9de3ca7e | 592 | } |
593 | ||
be67fdd0 | 594 | /** |
595 | * aim_conn_isready - Test if a connection is marked ready | |
596 | * @conn: Connection to test | |
597 | * | |
598 | * Returns true if the connection is ready, false otherwise. | |
599 | * Returns -1 if the connection is invalid. | |
600 | * | |
601 | * XXX: This is deprecated. | |
602 | * | |
603 | */ | |
78b3fb13 | 604 | faim_export int aim_conn_isready(struct aim_conn_t *conn) |
9de3ca7e | 605 | { |
606 | if (conn) | |
607 | return (conn->status & 0x0001); | |
040457cc | 608 | return -1; |
9de3ca7e | 609 | } |
610 | ||
be67fdd0 | 611 | /** |
612 | * aim_conn_setstatus - Set the status of a connection | |
613 | * @conn: Connection | |
614 | * @status: New status | |
615 | * | |
616 | * @newstatus is %XOR'd with the previous value of the connection | |
617 | * status and returned. Returns -1 if the connection is invalid. | |
618 | * | |
22517493 | 619 | * This isn't real useful. |
620 | * | |
be67fdd0 | 621 | */ |
78b3fb13 | 622 | faim_export int aim_conn_setstatus(struct aim_conn_t *conn, int status) |
9de3ca7e | 623 | { |
040457cc | 624 | int val; |
625 | ||
626 | if (!conn) | |
9de3ca7e | 627 | return -1; |
040457cc | 628 | |
629 | faim_mutex_lock(&conn->active); | |
630 | val = conn->status ^= status; | |
631 | faim_mutex_unlock(&conn->active); | |
632 | return val; | |
9de3ca7e | 633 | } |
634 | ||
be67fdd0 | 635 | /** |
636 | * aim_conn_setlatency - Set a forced latency value for connection | |
637 | * @conn: Conn to set latency for | |
638 | * @newval: Number of seconds to force between transmits | |
639 | * | |
640 | * Causes @newval seconds to be spent between transmits on a connection. | |
641 | * | |
642 | * This is my lame attempt at overcoming not understanding the rate | |
643 | * limiting. | |
644 | * | |
645 | * XXX: This should really be replaced with something that scales and | |
646 | * backs off like the real rate limiting does. | |
647 | * | |
648 | */ | |
78b3fb13 | 649 | faim_export int aim_conn_setlatency(struct aim_conn_t *conn, int newval) |
9de3ca7e | 650 | { |
651 | if (!conn) | |
652 | return -1; | |
040457cc | 653 | |
654 | faim_mutex_lock(&conn->active); | |
9de3ca7e | 655 | conn->forcedlatency = newval; |
656 | conn->lastactivity = 0; /* reset this just to make sure */ | |
040457cc | 657 | faim_mutex_unlock(&conn->active); |
9de3ca7e | 658 | |
659 | return 0; | |
660 | } | |
a25832e6 | 661 | |
be67fdd0 | 662 | /** |
663 | * aim_setupproxy - Configure a proxy for this session | |
664 | * @sess: Session to set proxy for | |
665 | * @server: SOCKS server | |
666 | * @username: SOCKS username | |
667 | * @password: SOCKS password | |
668 | * | |
bb0dc593 | 669 | * Call this with your SOCKS5 proxy server parameters before |
be67fdd0 | 670 | * the first call to aim_newconn(). If called with all %NULL |
bb0dc593 | 671 | * args, it will clear out a previously set proxy. |
672 | * | |
be67fdd0 | 673 | * Set username and password to %NULL if not applicable. |
bb0dc593 | 674 | * |
675 | */ | |
676 | faim_export void aim_setupproxy(struct aim_session_t *sess, char *server, char *username, char *password) | |
677 | { | |
678 | /* clear out the proxy info */ | |
679 | if (!server || !strlen(server)) { | |
680 | memset(sess->socksproxy.server, 0, sizeof(sess->socksproxy.server)); | |
681 | memset(sess->socksproxy.username, 0, sizeof(sess->socksproxy.username)); | |
682 | memset(sess->socksproxy.password, 0, sizeof(sess->socksproxy.password)); | |
683 | return; | |
684 | } | |
685 | ||
686 | strncpy(sess->socksproxy.server, server, sizeof(sess->socksproxy.server)); | |
687 | if (username && strlen(username)) | |
688 | strncpy(sess->socksproxy.username, username, sizeof(sess->socksproxy.username)); | |
689 | if (password && strlen(password)) | |
690 | strncpy(sess->socksproxy.password, password, sizeof(sess->socksproxy.password)); | |
691 | return; | |
692 | } | |
693 | ||
be67fdd0 | 694 | /** |
695 | * aim_session_init - Initializes a session structure | |
696 | * @sess: Session to initialize | |
22517493 | 697 | * @flags: Flags to use. Any of %AIM_SESS_FLAGS %OR'd together. |
be67fdd0 | 698 | * |
699 | * Sets up the initial values for a session. | |
700 | * | |
701 | */ | |
22517493 | 702 | faim_export void aim_session_init(struct aim_session_t *sess, unsigned long flags) |
a25832e6 | 703 | { |
a25832e6 | 704 | if (!sess) |
705 | return; | |
706 | ||
040457cc | 707 | memset(sess, 0, sizeof(struct aim_session_t)); |
e88ba395 | 708 | aim_connrst(sess); |
a25832e6 | 709 | sess->queue_outgoing = NULL; |
710 | sess->queue_incoming = NULL; | |
0c20631f | 711 | sess->pendingjoin = NULL; |
b13c9e13 | 712 | aim_initsnachash(sess); |
a25832e6 | 713 | sess->snac_nextid = 0x00000001; |
22517493 | 714 | |
715 | sess->flags = 0; | |
716 | ||
717 | /* | |
718 | * Default to SNAC login unless XORLOGIN is explicitly set. | |
719 | */ | |
720 | if (!(flags & AIM_SESS_FLAGS_XORLOGIN)) | |
721 | sess->flags |= AIM_SESS_FLAGS_SNACLOGIN; | |
722 | sess->flags |= flags; | |
a25832e6 | 723 | |
e88ba395 | 724 | /* |
725 | * This must always be set. Default to the queue-based | |
726 | * version for back-compatibility. | |
727 | */ | |
728 | sess->tx_enqueue = &aim_tx_enqueue__queuebased; | |
729 | ||
a25832e6 | 730 | return; |
731 | } | |
22517493 | 732 | |
733 | /** | |
734 | * aim_conn_isconnecting - Determine if a connection is connecting | |
735 | * @conn: Connection to examine | |
736 | * | |
737 | * Returns nonzero if the connection is in the process of | |
738 | * connecting (or if it just completed and aim_conn_completeconnect() | |
739 | * has yet to be called on it). | |
740 | * | |
741 | */ | |
742 | faim_export int aim_conn_isconnecting(struct aim_conn_t *conn) | |
743 | { | |
744 | if (!conn) | |
745 | return 0; | |
746 | return (conn->status & AIM_CONN_STATUS_INPROGRESS)?1:0; | |
747 | } | |
748 | ||
749 | faim_export int aim_conn_completeconnect(struct aim_session_t *sess, struct aim_conn_t *conn) | |
750 | { | |
751 | fd_set fds, wfds; | |
752 | struct timeval tv; | |
753 | int res, error = ETIMEDOUT; | |
754 | rxcallback_t userfunc; | |
755 | ||
756 | if (!conn || (conn->fd == -1)) | |
757 | return -1; | |
758 | ||
759 | if (!(conn->status & AIM_CONN_STATUS_INPROGRESS)) | |
760 | return -1; | |
761 | ||
762 | FD_ZERO(&fds); | |
763 | FD_SET(conn->fd, &fds); | |
764 | FD_ZERO(&wfds); | |
765 | FD_SET(conn->fd, &wfds); | |
766 | tv.tv_sec = 0; | |
767 | tv.tv_usec = 0; | |
768 | ||
769 | if ((res = select(conn->fd+1, &fds, &wfds, NULL, &tv)) == -1) { | |
770 | error = errno; | |
771 | aim_conn_close(conn); | |
772 | errno = error; | |
773 | return -1; | |
774 | } else if (res == 0) { | |
775 | printf("faim: aim_conn_completeconnect: false alarm on %d\n", conn->fd); | |
776 | return 0; /* hasn't really completed yet... */ | |
777 | } | |
778 | ||
779 | if (FD_ISSET(conn->fd, &fds) || FD_ISSET(conn->fd, &wfds)) { | |
780 | int len = sizeof(error); | |
781 | ||
782 | if (getsockopt(conn->fd, SOL_SOCKET, SO_ERROR, &error, &len) < 0) | |
783 | error = errno; | |
784 | } | |
785 | ||
786 | if (error) { | |
787 | aim_conn_close(conn); | |
788 | errno = error; | |
789 | return -1; | |
790 | } | |
791 | ||
792 | fcntl(conn->fd, F_SETFL, 0); /* XXX should restore original flags */ | |
793 | ||
794 | conn->status &= ~AIM_CONN_STATUS_INPROGRESS; | |
795 | ||
796 | if ((userfunc = aim_callhandler(conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_CONNCOMPLETE))) | |
797 | userfunc(sess, NULL, conn); | |
798 | ||
799 | /* Flush out the queues if there was something waiting for this conn */ | |
800 | aim_tx_flushqueue(sess); | |
801 | ||
802 | return 0; | |
803 | } |