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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 | ||
37ee990e | 9 | #define FAIM_INTERNAL |
a25832e6 | 10 | #include <faim/aim.h> |
9de3ca7e | 11 | |
67a264ef | 12 | #ifndef _WIN32 |
78b3fb13 | 13 | #include <netdb.h> |
14 | #include <sys/socket.h> | |
15 | #include <netinet/in.h> | |
67a264ef | 16 | #endif |
78b3fb13 | 17 | |
be67fdd0 | 18 | /** |
19 | * aim_connrst - Clears out connection list, killing remaining connections. | |
20 | * @sess: Session to be cleared | |
21 | * | |
22 | * Clears out the connection list and kills any connections left. | |
23 | * | |
040457cc | 24 | */ |
78b3fb13 | 25 | faim_internal void aim_connrst(struct aim_session_t *sess) |
9de3ca7e | 26 | { |
b13c9e13 | 27 | faim_mutex_init(&sess->connlistlock); |
040457cc | 28 | if (sess->connlist) { |
29 | struct aim_conn_t *cur = sess->connlist, *tmp; | |
30 | ||
31 | while(cur) { | |
32 | tmp = cur->next; | |
33 | aim_conn_close(cur); | |
34 | free(cur); | |
35 | cur = tmp; | |
36 | } | |
e88ba395 | 37 | } |
040457cc | 38 | sess->connlist = NULL; |
39 | return; | |
9de3ca7e | 40 | } |
41 | ||
9d2a3582 | 42 | /** |
43 | * aim_conn_init - Reset a connection to default values. | |
44 | * @deadconn: Connection to be reset | |
45 | * | |
46 | * Initializes and/or resets a connection structure. | |
47 | * | |
48 | */ | |
49 | static void aim_conn_init(struct aim_conn_t *deadconn) | |
50 | { | |
51 | if (!deadconn) | |
52 | return; | |
53 | ||
54 | deadconn->fd = -1; | |
55 | deadconn->subtype = -1; | |
56 | deadconn->type = -1; | |
57 | deadconn->seqnum = 0; | |
58 | deadconn->lastactivity = 0; | |
59 | deadconn->forcedlatency = 0; | |
60 | deadconn->handlerlist = NULL; | |
61 | deadconn->priv = NULL; | |
62 | faim_mutex_init(&deadconn->active); | |
63 | faim_mutex_init(&deadconn->seqnum_lock); | |
64 | ||
65 | return; | |
66 | } | |
67 | ||
be67fdd0 | 68 | /** |
69 | * aim_conn_getnext - Gets a new connection structure. | |
70 | * @sess: Session | |
71 | * | |
72 | * Allocate a new empty connection structure. | |
73 | * | |
040457cc | 74 | */ |
78b3fb13 | 75 | faim_internal struct aim_conn_t *aim_conn_getnext(struct aim_session_t *sess) |
9de3ca7e | 76 | { |
040457cc | 77 | struct aim_conn_t *newconn, *cur; |
78 | ||
79 | if (!(newconn = malloc(sizeof(struct aim_conn_t)))) | |
80 | return NULL; | |
81 | ||
82 | memset(newconn, 0, sizeof(struct aim_conn_t)); | |
9d2a3582 | 83 | aim_conn_init(newconn); |
040457cc | 84 | newconn->next = NULL; |
85 | ||
86 | faim_mutex_lock(&sess->connlistlock); | |
87 | if (sess->connlist == NULL) | |
88 | sess->connlist = newconn; | |
89 | else { | |
90 | for (cur = sess->connlist; cur->next; cur = cur->next) | |
91 | ; | |
92 | cur->next = newconn; | |
93 | } | |
94 | faim_mutex_unlock(&sess->connlistlock); | |
95 | ||
96 | return newconn; | |
97 | } | |
98 | ||
be67fdd0 | 99 | /** |
100 | * aim_conn_kill - Close and free a connection. | |
101 | * @sess: Session for the connection | |
102 | * @deadconn: Connection to be freed | |
103 | * | |
104 | * Close, clear, and free a connection structure. | |
105 | * | |
106 | */ | |
78b3fb13 | 107 | faim_export void aim_conn_kill(struct aim_session_t *sess, struct aim_conn_t **deadconn) |
040457cc | 108 | { |
109 | struct aim_conn_t *cur; | |
110 | ||
111 | if (!deadconn || !*deadconn) | |
112 | return; | |
113 | ||
114 | faim_mutex_lock(&sess->connlistlock); | |
115 | if (sess->connlist == NULL) | |
116 | ; | |
117 | else if (sess->connlist->next == NULL) { | |
118 | if (sess->connlist == *deadconn) | |
119 | sess->connlist = NULL; | |
120 | } else { | |
121 | cur = sess->connlist; | |
122 | while (cur->next) { | |
123 | if (cur->next == *deadconn) { | |
124 | cur->next = cur->next->next; | |
125 | break; | |
126 | } | |
127 | cur = cur->next; | |
128 | } | |
129 | } | |
130 | faim_mutex_unlock(&sess->connlistlock); | |
131 | ||
68ac63c2 | 132 | /* XXX: do we need this for txqueue too? */ |
133 | aim_rxqueue_cleanbyconn(sess, *deadconn); | |
134 | ||
9d2a3582 | 135 | if ((*deadconn)->fd != -1) |
136 | aim_conn_close(*deadconn); | |
f8ac5020 | 137 | if ((*deadconn)->priv) |
138 | free((*deadconn)->priv); | |
040457cc | 139 | free(*deadconn); |
140 | deadconn = NULL; | |
141 | ||
142 | return; | |
9de3ca7e | 143 | } |
144 | ||
be67fdd0 | 145 | /** |
146 | * aim_conn_close - Close a connection | |
147 | * @deadconn: Connection to close | |
148 | * | |
149 | * Close (but not free) a connection. | |
150 | * | |
9d2a3582 | 151 | * This leaves everything untouched except for clearing the |
152 | * handler list and setting the fd to -1 (used to recognize | |
153 | * dead connections). | |
154 | * | |
be67fdd0 | 155 | */ |
78b3fb13 | 156 | faim_export void aim_conn_close(struct aim_conn_t *deadconn) |
9de3ca7e | 157 | { |
4d7c1bfb | 158 | |
159 | faim_mutex_destroy(&deadconn->active); | |
160 | faim_mutex_destroy(&deadconn->seqnum_lock); | |
9de3ca7e | 161 | if (deadconn->fd >= 3) |
162 | close(deadconn->fd); | |
9d2a3582 | 163 | deadconn->fd = -1; |
0252e8c0 | 164 | if (deadconn->handlerlist) |
165 | aim_clearhandlers(deadconn); | |
3369f8d4 | 166 | |
4d7c1bfb | 167 | return; |
9de3ca7e | 168 | } |
169 | ||
be67fdd0 | 170 | /** |
171 | * aim_getconn_type - Find a connection of a specific type | |
172 | * @sess: Session to search | |
173 | * @type: Type of connection to look for | |
174 | * | |
175 | * Searches for a connection of the specified type in the | |
176 | * specified session. Returns the first connection of that | |
177 | * type found. | |
178 | * | |
179 | */ | |
37ee990e | 180 | faim_export struct aim_conn_t *aim_getconn_type(struct aim_session_t *sess, |
181 | int type) | |
9de3ca7e | 182 | { |
040457cc | 183 | struct aim_conn_t *cur; |
184 | ||
185 | faim_mutex_lock(&sess->connlistlock); | |
186 | for (cur = sess->connlist; cur; cur = cur->next) { | |
22517493 | 187 | if ((cur->type == type) && !(cur->status & AIM_CONN_STATUS_INPROGRESS)) |
040457cc | 188 | break; |
189 | } | |
190 | faim_mutex_unlock(&sess->connlistlock); | |
191 | return cur; | |
9de3ca7e | 192 | } |
193 | ||
be67fdd0 | 194 | /** |
195 | * aim_proxyconnect - An extrememly quick and dirty SOCKS5 interface. | |
196 | * @sess: Session to connect | |
197 | * @host: Host to connect to | |
198 | * @port: Port to connect to | |
199 | * @statusret: Return value of the connection | |
200 | * | |
201 | * Attempts to connect to the specified host via the configured | |
202 | * proxy settings, if present. If no proxy is configured for | |
203 | * this session, the connection is done directly. | |
204 | * | |
bb0dc593 | 205 | */ |
206 | static int aim_proxyconnect(struct aim_session_t *sess, | |
207 | char *host, unsigned short port, | |
208 | int *statusret) | |
209 | { | |
210 | int fd = -1; | |
211 | ||
212 | if (strlen(sess->socksproxy.server)) { /* connecting via proxy */ | |
213 | int i; | |
214 | unsigned char buf[512]; | |
215 | struct sockaddr_in sa; | |
216 | struct hostent *hp; | |
217 | char *proxy; | |
218 | unsigned short proxyport = 1080; | |
219 | ||
220 | for(i=0;i<(int)strlen(sess->socksproxy.server);i++) { | |
221 | if (sess->socksproxy.server[i] == ':') { | |
222 | proxyport = atoi(&(sess->socksproxy.server[i+1])); | |
223 | break; | |
224 | } | |
225 | } | |
226 | proxy = (char *)malloc(i+1); | |
227 | strncpy(proxy, sess->socksproxy.server, i); | |
228 | proxy[i] = '\0'; | |
229 | ||
230 | if (!(hp = gethostbyname(proxy))) { | |
231 | printf("proxyconnect: unable to resolve proxy name\n"); | |
232 | *statusret = (h_errno | AIM_CONN_STATUS_RESOLVERR); | |
233 | return -1; | |
234 | } | |
235 | free(proxy); | |
236 | ||
237 | memset(&sa.sin_zero, 0, 8); | |
238 | sa.sin_port = htons(proxyport); | |
239 | memcpy(&sa.sin_addr, hp->h_addr, hp->h_length); | |
240 | sa.sin_family = hp->h_addrtype; | |
241 | ||
242 | fd = socket(hp->h_addrtype, SOCK_STREAM, 0); | |
243 | if (connect(fd, (struct sockaddr *)&sa, sizeof(struct sockaddr_in)) < 0) { | |
244 | printf("proxyconnect: unable to connect to proxy\n"); | |
245 | close(fd); | |
246 | return -1; | |
247 | } | |
248 | ||
249 | i = 0; | |
250 | buf[0] = 0x05; /* SOCKS version 5 */ | |
251 | if (strlen(sess->socksproxy.username)) { | |
252 | buf[1] = 0x02; /* two methods */ | |
253 | buf[2] = 0x00; /* no authentication */ | |
254 | buf[3] = 0x02; /* username/password authentication */ | |
255 | i = 4; | |
256 | } else { | |
257 | buf[1] = 0x01; | |
258 | buf[2] = 0x00; | |
259 | i = 3; | |
260 | } | |
261 | ||
262 | if (write(fd, buf, i) < i) { | |
263 | *statusret = errno; | |
264 | close(fd); | |
265 | return -1; | |
266 | } | |
267 | ||
268 | if (read(fd, buf, 2) < 2) { | |
269 | *statusret = errno; | |
270 | close(fd); | |
271 | return -1; | |
272 | } | |
273 | ||
274 | if ((buf[0] != 0x05) || (buf[1] == 0xff)) { | |
275 | *statusret = EINVAL; | |
276 | close(fd); | |
277 | return -1; | |
278 | } | |
279 | ||
280 | /* check if we're doing username authentication */ | |
281 | if (buf[1] == 0x02) { | |
282 | i = aimutil_put8(buf, 0x01); /* version 1 */ | |
283 | i += aimutil_put8(buf+i, strlen(sess->socksproxy.username)); | |
284 | i += aimutil_putstr(buf+i, sess->socksproxy.username, strlen(sess->socksproxy.username)); | |
285 | i += aimutil_put8(buf+i, strlen(sess->socksproxy.password)); | |
286 | i += aimutil_putstr(buf+i, sess->socksproxy.password, strlen(sess->socksproxy.password)); | |
287 | if (write(fd, buf, i) < i) { | |
288 | *statusret = errno; | |
289 | close(fd); | |
290 | return -1; | |
291 | } | |
292 | if (read(fd, buf, 2) < 2) { | |
293 | *statusret = errno; | |
294 | close(fd); | |
295 | return -1; | |
296 | } | |
297 | if ((buf[0] != 0x01) || (buf[1] != 0x00)) { | |
298 | *statusret = EINVAL; | |
299 | close(fd); | |
300 | return -1; | |
301 | } | |
302 | } | |
303 | ||
304 | i = aimutil_put8(buf, 0x05); | |
305 | i += aimutil_put8(buf+i, 0x01); /* CONNECT */ | |
306 | i += aimutil_put8(buf+i, 0x00); /* reserved */ | |
307 | i += aimutil_put8(buf+i, 0x03); /* address type: host name */ | |
308 | i += aimutil_put8(buf+i, strlen(host)); | |
309 | i += aimutil_putstr(buf+i, host, strlen(host)); | |
310 | i += aimutil_put16(buf+i, port); | |
311 | ||
312 | if (write(fd, buf, i) < i) { | |
313 | *statusret = errno; | |
314 | close(fd); | |
315 | return -1; | |
316 | } | |
317 | if (read(fd, buf, 10) < 10) { | |
318 | *statusret = errno; | |
319 | close(fd); | |
320 | return -1; | |
321 | } | |
322 | if ((buf[0] != 0x05) || (buf[1] != 0x00)) { | |
323 | *statusret = EINVAL; | |
324 | close(fd); | |
325 | return -1; | |
326 | } | |
327 | ||
328 | } else { /* connecting directly */ | |
329 | struct sockaddr_in sa; | |
330 | struct hostent *hp; | |
331 | ||
332 | if (!(hp = gethostbyname(host))) { | |
333 | *statusret = (h_errno | AIM_CONN_STATUS_RESOLVERR); | |
334 | return -1; | |
335 | } | |
336 | ||
22517493 | 337 | memset(&sa, 0, sizeof(struct sockaddr_in)); |
bb0dc593 | 338 | sa.sin_port = htons(port); |
339 | memcpy(&sa.sin_addr, hp->h_addr, hp->h_length); | |
340 | sa.sin_family = hp->h_addrtype; | |
341 | ||
342 | fd = socket(hp->h_addrtype, SOCK_STREAM, 0); | |
22517493 | 343 | |
344 | if (sess->flags & AIM_SESS_FLAGS_NONBLOCKCONNECT) | |
345 | fcntl(fd, F_SETFL, O_NONBLOCK); /* XXX save flags */ | |
346 | ||
bb0dc593 | 347 | if (connect(fd, (struct sockaddr *)&sa, sizeof(struct sockaddr_in)) < 0) { |
22517493 | 348 | if (sess->flags & AIM_SESS_FLAGS_NONBLOCKCONNECT) { |
349 | if ((errno == EINPROGRESS) || (errno == EINTR)) { | |
350 | if (statusret) | |
351 | *statusret |= AIM_CONN_STATUS_INPROGRESS; | |
352 | return fd; | |
353 | } | |
354 | } | |
bb0dc593 | 355 | close(fd); |
356 | fd = -1; | |
357 | } | |
358 | } | |
359 | return fd; | |
360 | } | |
361 | ||
37ee990e | 362 | faim_internal struct aim_conn_t *aim_cloneconn(struct aim_session_t *sess, |
363 | struct aim_conn_t *src) | |
364 | { | |
365 | struct aim_conn_t *conn; | |
366 | struct aim_rxcblist_t *cur; | |
367 | ||
368 | if (!(conn = aim_conn_getnext(sess))) | |
369 | return NULL; | |
370 | ||
371 | ||
372 | faim_mutex_lock(&conn->active); | |
373 | ||
374 | conn->fd = src->fd; | |
375 | conn->type = src->type; | |
376 | conn->subtype = src->subtype; | |
377 | conn->seqnum = src->seqnum; | |
378 | conn->priv = src->priv; | |
379 | conn->lastactivity = src->lastactivity; | |
380 | conn->forcedlatency = src->forcedlatency; | |
381 | ||
382 | /* clone handler list */ | |
383 | for (cur = src->handlerlist; cur; cur = cur->next) { | |
384 | aim_conn_addhandler(sess, conn, cur->family, cur->type, | |
385 | cur->handler, cur->flags); | |
386 | } | |
387 | ||
388 | faim_mutex_unlock(&conn->active); | |
389 | ||
390 | return conn; | |
391 | } | |
392 | ||
be67fdd0 | 393 | /** |
394 | * aim_newconn - Open a new connection | |
395 | * @sess: Session to create connection in | |
396 | * @type: Type of connection to create | |
397 | * @dest: Host to connect to (in "host:port" syntax) | |
9de3ca7e | 398 | * |
be67fdd0 | 399 | * Opens a new connection to the specified dest host of specified |
400 | * type, using the proxy settings if available. If @host is %NULL, | |
401 | * the connection is allocated and returned, but no connection | |
402 | * is made. | |
9de3ca7e | 403 | * |
9de3ca7e | 404 | * FIXME: Return errors in a more sane way. |
405 | * | |
406 | */ | |
78b3fb13 | 407 | faim_export struct aim_conn_t *aim_newconn(struct aim_session_t *sess, |
408 | int type, char *dest) | |
9de3ca7e | 409 | { |
410 | struct aim_conn_t *connstruct; | |
411 | int ret; | |
9de3ca7e | 412 | u_short port = FAIM_LOGIN_PORT; |
a25832e6 | 413 | char *host = NULL; |
9de3ca7e | 414 | int i=0; |
040457cc | 415 | |
e6b05d80 | 416 | if ((connstruct=aim_conn_getnext(sess))==NULL) |
9de3ca7e | 417 | return NULL; |
418 | ||
040457cc | 419 | faim_mutex_lock(&connstruct->active); |
420 | ||
9de3ca7e | 421 | connstruct->type = type; |
422 | ||
e6b05d80 | 423 | if (!dest) { /* just allocate a struct */ |
424 | connstruct->fd = -1; | |
425 | connstruct->status = 0; | |
040457cc | 426 | faim_mutex_unlock(&connstruct->active); |
e6b05d80 | 427 | return connstruct; |
428 | } | |
429 | ||
9de3ca7e | 430 | /* |
431 | * As of 23 Jul 1999, AOL now sends the port number, preceded by a | |
432 | * colon, in the BOS redirect. This fatally breaks all previous | |
433 | * libfaims. Bad, bad AOL. | |
434 | * | |
435 | * We put this here to catch every case. | |
436 | * | |
437 | */ | |
438 | ||
5ac21963 | 439 | for(i=0;i<(int)strlen(dest);i++) { |
e88ba395 | 440 | if (dest[i] == ':') { |
441 | port = atoi(&(dest[i+1])); | |
442 | break; | |
9de3ca7e | 443 | } |
e88ba395 | 444 | } |
a25832e6 | 445 | host = (char *)malloc(i+1); |
446 | strncpy(host, dest, i); | |
9ba272ca | 447 | host[i] = '\0'; |
448 | ||
bb0dc593 | 449 | if ((ret = aim_proxyconnect(sess, host, port, &connstruct->status)) < 0) { |
e88ba395 | 450 | connstruct->fd = -1; |
451 | connstruct->status = (errno | AIM_CONN_STATUS_CONNERR); | |
bb0dc593 | 452 | free(host); |
040457cc | 453 | faim_mutex_unlock(&connstruct->active); |
e88ba395 | 454 | return connstruct; |
bb0dc593 | 455 | } else |
456 | connstruct->fd = ret; | |
a25832e6 | 457 | |
040457cc | 458 | faim_mutex_unlock(&connstruct->active); |
459 | ||
bb0dc593 | 460 | free(host); |
461 | ||
9de3ca7e | 462 | return connstruct; |
463 | } | |
464 | ||
be67fdd0 | 465 | /** |
466 | * aim_conngetmaxfd - Return the highest valued file discriptor in session | |
467 | * @sess: Session to search | |
468 | * | |
469 | * Returns the highest valued filed descriptor of all open | |
470 | * connections in @sess. | |
471 | * | |
472 | */ | |
78b3fb13 | 473 | faim_export int aim_conngetmaxfd(struct aim_session_t *sess) |
9de3ca7e | 474 | { |
040457cc | 475 | int j = 0; |
476 | struct aim_conn_t *cur; | |
477 | ||
478 | faim_mutex_lock(&sess->connlistlock); | |
479 | for (cur = sess->connlist; cur; cur = cur->next) { | |
480 | if (cur->fd > j) | |
481 | j = cur->fd; | |
482 | } | |
483 | faim_mutex_unlock(&sess->connlistlock); | |
e88ba395 | 484 | |
9de3ca7e | 485 | return j; |
486 | } | |
487 | ||
be67fdd0 | 488 | /** |
489 | * aim_conn_in_sess - Predicate to test the precense of a connection in a sess | |
490 | * @sess: Session to look in | |
491 | * @conn: Connection to look for | |
492 | * | |
493 | * Searches @sess for the passed connection. Returns 1 if its present, | |
494 | * zero otherwise. | |
495 | * | |
496 | */ | |
3b101546 | 497 | faim_export int aim_conn_in_sess(struct aim_session_t *sess, struct aim_conn_t *conn) |
498 | { | |
499 | struct aim_conn_t *cur; | |
500 | ||
501 | faim_mutex_lock(&sess->connlistlock); | |
502 | for(cur = sess->connlist; cur; cur = cur->next) | |
503 | if(cur == conn) { | |
504 | faim_mutex_unlock(&sess->connlistlock); | |
505 | return 1; | |
506 | } | |
507 | faim_mutex_unlock(&sess->connlistlock); | |
508 | return 0; | |
509 | } | |
510 | ||
be67fdd0 | 511 | /** |
512 | * aim_select - Wait for a socket with data or timeout | |
513 | * @sess: Session to wait on | |
514 | * @timeout: How long to wait | |
515 | * @status: Return status | |
9de3ca7e | 516 | * |
517 | * Waits for a socket with data or for timeout, whichever comes first. | |
be67fdd0 | 518 | * See select(). |
9de3ca7e | 519 | * |
b8d0da45 | 520 | * Return codes in *status: |
be67fdd0 | 521 | * -1 error in select() (%NULL returned) |
522 | * 0 no events pending (%NULL returned) | |
523 | * 1 outgoing data pending (%NULL returned) | |
b8d0da45 | 524 | * 2 incoming data pending (connection with pending data returned) |
525 | * | |
040457cc | 526 | * XXX: we could probably stand to do a little courser locking here. |
527 | * | |
9de3ca7e | 528 | */ |
78b3fb13 | 529 | faim_export struct aim_conn_t *aim_select(struct aim_session_t *sess, |
530 | struct timeval *timeout, int *status) | |
9de3ca7e | 531 | { |
040457cc | 532 | struct aim_conn_t *cur; |
22517493 | 533 | fd_set fds, wfds; |
040457cc | 534 | int maxfd = 0; |
22517493 | 535 | int i, haveconnecting = 0; |
9de3ca7e | 536 | |
040457cc | 537 | faim_mutex_lock(&sess->connlistlock); |
538 | if (sess->connlist == NULL) { | |
539 | faim_mutex_unlock(&sess->connlistlock); | |
68ac63c2 | 540 | *status = -1; |
541 | return NULL; | |
040457cc | 542 | } |
543 | faim_mutex_unlock(&sess->connlistlock); | |
f1a5efe0 | 544 | |
9de3ca7e | 545 | FD_ZERO(&fds); |
22517493 | 546 | FD_ZERO(&wfds); |
040457cc | 547 | maxfd = 0; |
548 | ||
549 | faim_mutex_lock(&sess->connlistlock); | |
550 | for (cur = sess->connlist; cur; cur = cur->next) { | |
9d2a3582 | 551 | if (cur->fd == -1) { |
552 | /* don't let invalid/dead connections sit around */ | |
553 | *status = 2; | |
554 | faim_mutex_unlock(&sess->connlistlock); | |
555 | return cur; | |
556 | } else if (cur->status & AIM_CONN_STATUS_INPROGRESS) { | |
22517493 | 557 | FD_SET(cur->fd, &wfds); |
558 | haveconnecting++; | |
559 | } | |
040457cc | 560 | FD_SET(cur->fd, &fds); |
561 | if (cur->fd > maxfd) | |
562 | maxfd = cur->fd; | |
563 | } | |
564 | faim_mutex_unlock(&sess->connlistlock); | |
565 | ||
22517493 | 566 | /* |
567 | * If we have data waiting to be sent, return | |
568 | * | |
569 | * We have to not do this if theres at least one | |
570 | * connection thats still connecting, since that connection | |
571 | * may have queued data and this return would prevent | |
572 | * the connection from ever completing! This is a major | |
573 | * inadequacy of the libfaim way of doing things. It means | |
574 | * that nothing can transmit as long as there's connecting | |
575 | * sockets. Evil. | |
576 | * | |
577 | * But its still better than having blocking connects. | |
578 | * | |
579 | */ | |
580 | if (!haveconnecting && (sess->queue_outgoing != NULL)) { | |
581 | *status = 1; | |
582 | return NULL; | |
583 | } | |
584 | ||
585 | if ((i = select(maxfd+1, &fds, &wfds, NULL, timeout))>=1) { | |
040457cc | 586 | faim_mutex_lock(&sess->connlistlock); |
587 | for (cur = sess->connlist; cur; cur = cur->next) { | |
22517493 | 588 | if ((FD_ISSET(cur->fd, &fds)) || |
589 | ((cur->status & AIM_CONN_STATUS_INPROGRESS) && | |
590 | FD_ISSET(cur->fd, &wfds))) { | |
040457cc | 591 | *status = 2; |
592 | faim_mutex_unlock(&sess->connlistlock); | |
22517493 | 593 | return cur; /* XXX race condition here -- shouldnt unlock connlist */ |
040457cc | 594 | } |
595 | } | |
9797852c | 596 | *status = 0; /* shouldn't happen */ |
597 | } else if ((i == -1) && (errno == EINTR)) /* treat interrupts as a timeout */ | |
598 | *status = 0; | |
599 | else | |
600 | *status = i; /* can be 0 or -1 */ | |
b8d0da45 | 601 | |
040457cc | 602 | faim_mutex_unlock(&sess->connlistlock); |
b8d0da45 | 603 | return NULL; /* no waiting or error, return */ |
9de3ca7e | 604 | } |
605 | ||
be67fdd0 | 606 | /** |
607 | * aim_conn_isready - Test if a connection is marked ready | |
608 | * @conn: Connection to test | |
609 | * | |
610 | * Returns true if the connection is ready, false otherwise. | |
611 | * Returns -1 if the connection is invalid. | |
612 | * | |
613 | * XXX: This is deprecated. | |
614 | * | |
615 | */ | |
78b3fb13 | 616 | faim_export int aim_conn_isready(struct aim_conn_t *conn) |
9de3ca7e | 617 | { |
618 | if (conn) | |
619 | return (conn->status & 0x0001); | |
040457cc | 620 | return -1; |
9de3ca7e | 621 | } |
622 | ||
be67fdd0 | 623 | /** |
624 | * aim_conn_setstatus - Set the status of a connection | |
625 | * @conn: Connection | |
626 | * @status: New status | |
627 | * | |
628 | * @newstatus is %XOR'd with the previous value of the connection | |
629 | * status and returned. Returns -1 if the connection is invalid. | |
630 | * | |
22517493 | 631 | * This isn't real useful. |
632 | * | |
be67fdd0 | 633 | */ |
78b3fb13 | 634 | faim_export int aim_conn_setstatus(struct aim_conn_t *conn, int status) |
9de3ca7e | 635 | { |
040457cc | 636 | int val; |
637 | ||
638 | if (!conn) | |
9de3ca7e | 639 | return -1; |
040457cc | 640 | |
641 | faim_mutex_lock(&conn->active); | |
642 | val = conn->status ^= status; | |
643 | faim_mutex_unlock(&conn->active); | |
644 | return val; | |
9de3ca7e | 645 | } |
646 | ||
be67fdd0 | 647 | /** |
648 | * aim_conn_setlatency - Set a forced latency value for connection | |
649 | * @conn: Conn to set latency for | |
650 | * @newval: Number of seconds to force between transmits | |
651 | * | |
652 | * Causes @newval seconds to be spent between transmits on a connection. | |
653 | * | |
654 | * This is my lame attempt at overcoming not understanding the rate | |
655 | * limiting. | |
656 | * | |
657 | * XXX: This should really be replaced with something that scales and | |
658 | * backs off like the real rate limiting does. | |
659 | * | |
660 | */ | |
78b3fb13 | 661 | faim_export int aim_conn_setlatency(struct aim_conn_t *conn, int newval) |
9de3ca7e | 662 | { |
663 | if (!conn) | |
664 | return -1; | |
040457cc | 665 | |
666 | faim_mutex_lock(&conn->active); | |
9de3ca7e | 667 | conn->forcedlatency = newval; |
668 | conn->lastactivity = 0; /* reset this just to make sure */ | |
040457cc | 669 | faim_mutex_unlock(&conn->active); |
9de3ca7e | 670 | |
671 | return 0; | |
672 | } | |
a25832e6 | 673 | |
be67fdd0 | 674 | /** |
675 | * aim_setupproxy - Configure a proxy for this session | |
676 | * @sess: Session to set proxy for | |
677 | * @server: SOCKS server | |
678 | * @username: SOCKS username | |
679 | * @password: SOCKS password | |
680 | * | |
bb0dc593 | 681 | * Call this with your SOCKS5 proxy server parameters before |
be67fdd0 | 682 | * the first call to aim_newconn(). If called with all %NULL |
bb0dc593 | 683 | * args, it will clear out a previously set proxy. |
684 | * | |
be67fdd0 | 685 | * Set username and password to %NULL if not applicable. |
bb0dc593 | 686 | * |
687 | */ | |
688 | faim_export void aim_setupproxy(struct aim_session_t *sess, char *server, char *username, char *password) | |
689 | { | |
690 | /* clear out the proxy info */ | |
691 | if (!server || !strlen(server)) { | |
692 | memset(sess->socksproxy.server, 0, sizeof(sess->socksproxy.server)); | |
693 | memset(sess->socksproxy.username, 0, sizeof(sess->socksproxy.username)); | |
694 | memset(sess->socksproxy.password, 0, sizeof(sess->socksproxy.password)); | |
695 | return; | |
696 | } | |
697 | ||
698 | strncpy(sess->socksproxy.server, server, sizeof(sess->socksproxy.server)); | |
699 | if (username && strlen(username)) | |
700 | strncpy(sess->socksproxy.username, username, sizeof(sess->socksproxy.username)); | |
701 | if (password && strlen(password)) | |
702 | strncpy(sess->socksproxy.password, password, sizeof(sess->socksproxy.password)); | |
703 | return; | |
704 | } | |
705 | ||
be67fdd0 | 706 | /** |
707 | * aim_session_init - Initializes a session structure | |
708 | * @sess: Session to initialize | |
22517493 | 709 | * @flags: Flags to use. Any of %AIM_SESS_FLAGS %OR'd together. |
be67fdd0 | 710 | * |
711 | * Sets up the initial values for a session. | |
712 | * | |
713 | */ | |
22517493 | 714 | faim_export void aim_session_init(struct aim_session_t *sess, unsigned long flags) |
a25832e6 | 715 | { |
a25832e6 | 716 | if (!sess) |
717 | return; | |
718 | ||
040457cc | 719 | memset(sess, 0, sizeof(struct aim_session_t)); |
e88ba395 | 720 | aim_connrst(sess); |
a25832e6 | 721 | sess->queue_outgoing = NULL; |
722 | sess->queue_incoming = NULL; | |
0c20631f | 723 | sess->pendingjoin = NULL; |
9f20a4e3 | 724 | sess->pendingjoinexchange = 0; |
b13c9e13 | 725 | aim_initsnachash(sess); |
9f20a4e3 | 726 | sess->msgcookies = NULL; |
a25832e6 | 727 | sess->snac_nextid = 0x00000001; |
22517493 | 728 | |
729 | sess->flags = 0; | |
730 | ||
731 | /* | |
732 | * Default to SNAC login unless XORLOGIN is explicitly set. | |
733 | */ | |
734 | if (!(flags & AIM_SESS_FLAGS_XORLOGIN)) | |
735 | sess->flags |= AIM_SESS_FLAGS_SNACLOGIN; | |
736 | sess->flags |= flags; | |
a25832e6 | 737 | |
e88ba395 | 738 | /* |
739 | * This must always be set. Default to the queue-based | |
740 | * version for back-compatibility. | |
741 | */ | |
742 | sess->tx_enqueue = &aim_tx_enqueue__queuebased; | |
743 | ||
a25832e6 | 744 | return; |
745 | } | |
22517493 | 746 | |
747 | /** | |
748 | * aim_conn_isconnecting - Determine if a connection is connecting | |
749 | * @conn: Connection to examine | |
750 | * | |
751 | * Returns nonzero if the connection is in the process of | |
752 | * connecting (or if it just completed and aim_conn_completeconnect() | |
753 | * has yet to be called on it). | |
754 | * | |
755 | */ | |
756 | faim_export int aim_conn_isconnecting(struct aim_conn_t *conn) | |
757 | { | |
758 | if (!conn) | |
759 | return 0; | |
760 | return (conn->status & AIM_CONN_STATUS_INPROGRESS)?1:0; | |
761 | } | |
762 | ||
763 | faim_export int aim_conn_completeconnect(struct aim_session_t *sess, struct aim_conn_t *conn) | |
764 | { | |
765 | fd_set fds, wfds; | |
766 | struct timeval tv; | |
767 | int res, error = ETIMEDOUT; | |
768 | rxcallback_t userfunc; | |
769 | ||
770 | if (!conn || (conn->fd == -1)) | |
771 | return -1; | |
772 | ||
773 | if (!(conn->status & AIM_CONN_STATUS_INPROGRESS)) | |
774 | return -1; | |
775 | ||
776 | FD_ZERO(&fds); | |
777 | FD_SET(conn->fd, &fds); | |
778 | FD_ZERO(&wfds); | |
779 | FD_SET(conn->fd, &wfds); | |
780 | tv.tv_sec = 0; | |
781 | tv.tv_usec = 0; | |
782 | ||
783 | if ((res = select(conn->fd+1, &fds, &wfds, NULL, &tv)) == -1) { | |
784 | error = errno; | |
785 | aim_conn_close(conn); | |
786 | errno = error; | |
787 | return -1; | |
788 | } else if (res == 0) { | |
789 | printf("faim: aim_conn_completeconnect: false alarm on %d\n", conn->fd); | |
790 | return 0; /* hasn't really completed yet... */ | |
791 | } | |
792 | ||
793 | if (FD_ISSET(conn->fd, &fds) || FD_ISSET(conn->fd, &wfds)) { | |
794 | int len = sizeof(error); | |
795 | ||
796 | if (getsockopt(conn->fd, SOL_SOCKET, SO_ERROR, &error, &len) < 0) | |
797 | error = errno; | |
798 | } | |
799 | ||
800 | if (error) { | |
801 | aim_conn_close(conn); | |
802 | errno = error; | |
803 | return -1; | |
804 | } | |
805 | ||
806 | fcntl(conn->fd, F_SETFL, 0); /* XXX should restore original flags */ | |
807 | ||
808 | conn->status &= ~AIM_CONN_STATUS_INPROGRESS; | |
809 | ||
810 | if ((userfunc = aim_callhandler(conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_CONNCOMPLETE))) | |
811 | userfunc(sess, NULL, conn); | |
812 | ||
813 | /* Flush out the queues if there was something waiting for this conn */ | |
814 | aim_tx_flushqueue(sess); | |
815 | ||
816 | return 0; | |
817 | } |