4 * This contains all the functions needed to actually login.
13 static int aim_encode_password(const char *password, unsigned char *encoded);
15 faim_export int aim_sendflapver(struct aim_session_t *sess, struct aim_conn_t *conn)
19 struct command_tx_struct *newpacket;
21 if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0001, 4)))
26 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000);
27 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0001);
31 return aim_tx_enqueue(sess, newpacket);
35 * In AIM 3.5 protocol, the first stage of login is to request
36 * login from the Authorizer, passing it the screen name
37 * for verification. If the name is invalid, a 0017/0003
38 * is spit back, with the standard error contents. If valid,
39 * a 0017/0007 comes back, which is the signal to send
40 * it the main login command (0017/0002).
42 faim_export int aim_request_login(struct aim_session_t *sess, struct aim_conn_t *conn, const char *sn)
45 struct command_tx_struct *newpacket;
47 if (!sess || !conn || !sn)
51 * For ICQ, we enable the ancient horrible login and stuff
52 * a key packet into the queue to make it look like we got
53 * a reply back. This is so the client doesn't know we're
54 * really not doing MD5 login.
56 * This may sound stupid, but I'm not in the best of moods and
57 * I don't plan to keep support for this crap around much longer.
58 * Its all AOL's fault anyway, really. I hate AOL. Really. They
59 * always seem to be able to piss me off by doing the dumbest little
60 * things. Like disabling MD5 logins for ICQ UINs, or adding
61 * purposefully wrong TLV lengths, or adding superfluous information
62 * to host strings, or... I'll stop.
65 if ((sn[0] >= '0') && (sn[0] <= '9')) {
66 struct command_rx_struct *newrx;
69 /* XXX Uhm why doesn't this use aim_tx_new? */
70 if (!(newrx = (struct command_rx_struct *)malloc(sizeof(struct command_rx_struct))))
73 memset(newrx, 0x00, sizeof(struct command_rx_struct));
75 newrx->hdrtype = AIM_FRAMETYPE_OSCAR;
76 newrx->hdr.oscar.type = 0x02;
77 newrx->hdr.oscar.seqnum = 0;
78 newrx->commandlen = 10+2+1;
81 if (!(newrx->data = malloc(newrx->commandlen))) {
86 i = aim_putsnac(newrx->data, 0x0017, 0x0007, 0x0000, 0x0000);
87 i += aimutil_put16(newrx->data+i, 0x01);
88 i += aimutil_putstr(newrx->data+i, "0", 1);
92 newrx->next = sess->queue_incoming;
93 sess->queue_incoming = newrx;
97 sess->flags &= ~AIM_SESS_FLAGS_SNACLOGIN;
102 sess->flags |= AIM_SESS_FLAGS_SNACLOGIN;
104 aim_sendflapver(sess, conn);
106 if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+2+2+strlen(sn))))
111 curbyte = aim_putsnac(newpacket->data, 0x0017, 0x0006, 0x0000, 0x00010000);
112 curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0001, strlen(sn), sn);
114 newpacket->commandlen = curbyte;
117 return aim_tx_enqueue(sess, newpacket);
121 * send_login(int socket, char *sn, char *password)
123 * This is the initial login request packet.
125 * NOTE!! If you want/need to make use of the aim_sendmemblock() function,
126 * then the client information you send here must exactly match the
127 * executable that you're pulling the data from.
130 * clientstring = "AOL Instant Messenger (SM), version 4.3.2188/WIN32"
136 * unknown = 0x00000086
141 * Latest WinAIM that libfaim can emulate without server-side buddylists:
142 * clientstring = "AOL Instant Messenger (SM), version 4.1.2010/WIN32"
148 * unknown= 0x0000004b
151 * clientstring = "AOL Instant Messenger (SM), version 3.5.1670/WIN32"
157 * unknown =0x0000002a
160 * clientstring = "AOL Instant Messenger (TM) version 1.1.19 for Java built 03/24/98, freeMem 215871 totalMem 1048567, i686, Linus, #2 SMP Sun Feb 11 03:41:17 UTC 2001 2.4.1-ac9, IBM Corporation, 1.1.8, 45.3, Tue Mar 27 12:09:17 PST 2001"
164 * minor2 = (not sent)
166 * unknown= (not sent)
168 * AIM for Linux 1.1.112:
169 * clientstring = "AOL Instant Messenger (SM)"
175 * unknown= 0x0000008b
179 faim_export int aim_send_login (struct aim_session_t *sess, struct aim_conn_t *conn, char *sn, char *password, struct client_info_s *clientinfo, char *key)
182 struct command_tx_struct *newpacket;
184 if (!clientinfo || !sn || !password)
187 if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 1152)))
192 newpacket->hdr.oscar.type = (sess->flags & AIM_SESS_FLAGS_SNACLOGIN)?0x02:0x01;
194 if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN)
195 curbyte = aim_putsnac(newpacket->data, 0x0017, 0x0002, 0x0000, 0x00010000);
197 curbyte = aimutil_put16(newpacket->data, 0x0000);
198 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0001);
201 curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0001, strlen(sn), sn);
203 if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN) {
204 unsigned char digest[16];
206 aim_encode_password_md5(password, key, digest);
207 curbyte+= aim_puttlv_str(newpacket->data+curbyte, 0x0025, 16, (char *)digest);
209 char *password_encoded;
211 password_encoded = (char *) malloc(strlen(password));
212 aim_encode_password(password, password_encoded);
213 curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0002, strlen(password), password_encoded);
214 free(password_encoded);
217 curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0003, strlen(clientinfo->clientstring), clientinfo->clientstring);
219 if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN) {
221 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0016, (unsigned short)clientinfo->major2);
222 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0017, (unsigned short)clientinfo->major);
223 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0018, (unsigned short)clientinfo->minor);
224 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0019, (unsigned short)clientinfo->minor2);
225 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x001a, (unsigned short)clientinfo->build);
228 /* Use very specific version numbers, to further indicate the hack. */
229 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0016, 0x010a);
230 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0017, 0x0004);
231 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0018, 0x003c);
232 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0019, 0x0001);
233 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x001a, 0x0cce);
234 curbyte += aim_puttlv_32(newpacket->data+curbyte, 0x0014, 0x00000055);
237 curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000e, strlen(clientinfo->country), clientinfo->country);
238 curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000f, strlen(clientinfo->lang), clientinfo->lang);
240 if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN) {
241 curbyte += aim_puttlv_32(newpacket->data+curbyte, 0x0014, clientinfo->unknown);
242 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0009, 0x0015);
245 newpacket->commandlen = curbyte;
248 return aim_tx_enqueue(sess, newpacket);
251 faim_export int aim_encode_password_md5(const char *password, const char *key, unsigned char *digest)
256 md5_append(&state, (const md5_byte_t *)key, strlen(key));
257 md5_append(&state, (const md5_byte_t *)password, strlen(password));
258 md5_append(&state, (const md5_byte_t *)AIM_MD5_STRING, strlen(AIM_MD5_STRING));
259 md5_finish(&state, (md5_byte_t *)digest);
265 * aim_encode_password - Encode a password using old XOR method
266 * @password: incoming password
267 * @encoded: buffer to put encoded password
269 * This takes a const pointer to a (null terminated) string
270 * containing the unencoded password. It also gets passed
271 * an already allocated buffer to store the encoded password.
272 * This buffer should be the exact length of the password without
273 * the null. The encoded password buffer /is not %NULL terminated/.
275 * The encoding_table seems to be a fixed set of values. We'll
276 * hope it doesn't change over time!
278 * This is only used for the XOR method, not the better MD5 method.
281 static int aim_encode_password(const char *password, unsigned char *encoded)
283 unsigned char encoding_table[] = {
284 #if 0 /* old v1 table */
285 0xf3, 0xb3, 0x6c, 0x99,
286 0x95, 0x3f, 0xac, 0xb6,
287 0xc5, 0xfa, 0x6b, 0x63,
288 0x69, 0x6c, 0xc3, 0x9f
289 #else /* v2.1 table, also works for ICQ */
290 0xf3, 0x26, 0x81, 0xc4,
291 0x39, 0x86, 0xdb, 0x92,
292 0x71, 0xa3, 0xb9, 0xe6,
293 0x53, 0x7a, 0x95, 0x7c
298 for (i = 0; i < strlen(password); i++)
299 encoded[i] = (password[i] ^ encoding_table[i]);
305 * Generate an authorization response.
307 * You probably don't want this unless you're writing an AIM server.
310 faim_export unsigned long aim_sendauthresp(struct aim_session_t *sess,
311 struct aim_conn_t *conn,
312 char *sn, int errorcode,
313 char *errorurl, char *bosip,
314 char *cookie, char *email,
317 struct command_tx_struct *tx;
318 struct aim_tlvlist_t *tlvlist = NULL;
320 if (!(tx = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0004, 1152)))
326 aim_addtlvtochain_str(&tlvlist, 0x0001, sn, strlen(sn));
328 aim_addtlvtochain_str(&tlvlist, 0x0001, sess->sn, strlen(sess->sn));
331 aim_addtlvtochain16(&tlvlist, 0x0008, errorcode);
332 aim_addtlvtochain_str(&tlvlist, 0x0004, errorurl, strlen(errorurl));
334 aim_addtlvtochain_str(&tlvlist, 0x0005, bosip, strlen(bosip));
335 aim_addtlvtochain_str(&tlvlist, 0x0006, cookie, AIM_COOKIELEN);
336 aim_addtlvtochain_str(&tlvlist, 0x0011, email, strlen(email));
337 aim_addtlvtochain16(&tlvlist, 0x0013, (unsigned short)regstatus);
340 tx->commandlen = aim_writetlvchain(tx->data, tx->commandlen, &tlvlist);
343 return aim_tx_enqueue(sess, tx);
347 * Generate a random cookie. (Non-client use only)
349 faim_export int aim_gencookie(unsigned char *buf)
355 for (i=0; i < AIM_COOKIELEN; i++)
356 buf[i] = 1+(int) (256.0*rand()/(RAND_MAX+0.0));
362 * Send Server Ready. (Non-client)
364 faim_export int aim_sendserverready(struct aim_session_t *sess, struct aim_conn_t *conn)
366 struct command_tx_struct *tx;
369 if (!(tx = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+0x22)))
374 i = aim_putsnac(tx->data, 0x0001, 0x0003, 0x0000, sess->snac_nextid++);
376 i += aimutil_put16(tx->data+i, 0x0001);
377 i += aimutil_put16(tx->data+i, 0x0002);
378 i += aimutil_put16(tx->data+i, 0x0003);
379 i += aimutil_put16(tx->data+i, 0x0004);
380 i += aimutil_put16(tx->data+i, 0x0006);
381 i += aimutil_put16(tx->data+i, 0x0008);
382 i += aimutil_put16(tx->data+i, 0x0009);
383 i += aimutil_put16(tx->data+i, 0x000a);
384 i += aimutil_put16(tx->data+i, 0x000b);
385 i += aimutil_put16(tx->data+i, 0x000c);
386 i += aimutil_put16(tx->data+i, 0x0013);
387 i += aimutil_put16(tx->data+i, 0x0015);
392 return aim_tx_enqueue(sess, tx);
397 * Send service redirect. (Non-Client)
399 faim_export unsigned long aim_sendredirect(struct aim_session_t *sess, struct aim_conn_t *conn, unsigned short servid, char *ip, char *cookie)
401 struct command_tx_struct *tx;
402 struct aim_tlvlist_t *tlvlist = NULL;
405 if (!(tx = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 1152)))
410 i = aim_putsnac(tx->data, 0x0001, 0x0005, 0x0000, 0x00000000);
412 aim_addtlvtochain16(&tlvlist, 0x000d, servid);
413 aim_addtlvtochain_str(&tlvlist, 0x0005, ip, strlen(ip));
414 aim_addtlvtochain_str(&tlvlist, 0x0006, cookie, AIM_COOKIELEN);
416 tx->commandlen = aim_writetlvchain(tx->data+i, tx->commandlen-i, &tlvlist)+i;
417 aim_freetlvchain(&tlvlist);
421 return aim_tx_enqueue(sess, tx);
425 static int hostonline(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen)
427 aim_rxcallback_t userfunc;
429 unsigned short *families;
432 famcount = datalen/2;
434 if (!(families = malloc(datalen)))
437 for (i = 0; i < famcount; i++)
438 families[i] = aimutil_get16(data+(i*2));
440 if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
441 ret = userfunc(sess, rx, famcount, families);
448 static int redirect(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen)
451 unsigned char *cookie;
453 aim_rxcallback_t userfunc;
454 struct aim_tlvlist_t *tlvlist;
455 char *chathack = NULL;
459 tlvlist = aim_readtlvchain(data, datalen);
461 if (!aim_gettlv(tlvlist, 0x000d, 1) ||
462 !aim_gettlv(tlvlist, 0x0005, 1) ||
463 !aim_gettlv(tlvlist, 0x0006, 1)) {
464 aim_freetlvchain(&tlvlist);
468 serviceid = aim_gettlv16(tlvlist, 0x000d, 1);
469 ip = aim_gettlv_str(tlvlist, 0x0005, 1);
470 cookie = aim_gettlv_str(tlvlist, 0x0006, 1);
475 if ((serviceid == AIM_CONN_TYPE_CHAT) && sess->pendingjoin) {
476 chathack = sess->pendingjoin;
477 chathackex = sess->pendingjoinexchange;
478 sess->pendingjoin = NULL;
479 sess->pendingjoinexchange = 0;
482 if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
483 ret = userfunc(sess, rx, serviceid, ip, cookie, chathack, chathackex);
489 aim_freetlvchain(&tlvlist);
495 * The Rate Limiting System, An Abridged Guide to Nonsense.
497 * OSCAR defines several 'rate classes'. Each class has seperate
498 * rate limiting properties (limit level, alert level, disconnect
499 * level, etc), and a set of SNAC family/type pairs associated with
500 * it. The rate classes, their limiting properties, and the definitions
501 * of which SNACs are belong to which class, are defined in the
502 * Rate Response packet at login to each host.
504 * Logically, all rate offenses within one class count against further
505 * offenses for other SNACs in the same class (ie, sending messages
506 * too fast will limit the number of user info requests you can send,
507 * since those two SNACs are in the same rate class).
509 * Since the rate classes are defined dynamically at login, the values
510 * below may change. But they seem to be fairly constant.
512 * Currently, BOS defines five rate classes, with the commonly used
513 * members as follows...
516 * - Everything thats not in any of the other classes
519 * - Buddy list add/remove
520 * - Permit list add/remove
521 * - Deny list add/remove
524 * - User information requests
528 * - A few unknowns: 2/9, 2/b, and f/2
532 * - Outgoing chat ICBMs
534 * The only other thing of note is that class 5 (chat) has slightly looser
535 * limiting properties than class 3 (normal messages). But thats just a
536 * small bit of trivia for you.
538 * The last thing that needs to be learned about the rate limiting
539 * system is how the actual numbers relate to the passing of time. This
540 * seems to be a big mystery.
545 static int rateresp(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen)
547 aim_rxcallback_t userfunc;
549 if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
550 return userfunc(sess, rx);
555 static int ratechange(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen)
557 aim_rxcallback_t userfunc;
559 unsigned long currentavg, maxavg;
560 unsigned long rateclass, windowsize, clear, alert, limit, disconnect;
562 code = aimutil_get16(data+i);
565 rateclass = aimutil_get16(data+i);
568 windowsize = aimutil_get32(data+i);
570 clear = aimutil_get32(data+i);
572 alert = aimutil_get32(data+i);
574 limit = aimutil_get32(data+i);
576 disconnect = aimutil_get32(data+i);
578 currentavg = aimutil_get32(data+i);
580 maxavg = aimutil_get32(data+i);
583 if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
584 return userfunc(sess, rx, code, rateclass, windowsize, clear, alert, limit, disconnect, currentavg, maxavg);
590 static int selfinfo(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen)
592 aim_rxcallback_t userfunc;
594 if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
595 return userfunc(sess, rx);
600 static int evilnotify(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen)
602 aim_rxcallback_t userfunc = NULL;
604 unsigned short newevil;
605 struct aim_userinfo_s userinfo;
607 newevil = aimutil_get16(data);
610 memset(&userinfo, 0, sizeof(struct aim_userinfo_s));
613 i += aim_extractuserinfo(sess, data+i, &userinfo);
615 if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
616 return userfunc(sess, rx, newevil, &userinfo);
621 static int motd(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen)
623 aim_rxcallback_t userfunc;
626 struct aim_tlvlist_t *tlvlist;
633 * 1 Mandatory upgrade
636 * 4 Nothing's wrong ("top o the world" -- normal)
639 id = aimutil_get16(data);
644 if ((tlvlist = aim_readtlvchain(data+2, datalen-2)))
645 msg = aim_gettlv_str(tlvlist, 0x000b, 1);
647 if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
648 ret = userfunc(sess, rx, id, msg);
652 aim_freetlvchain(&tlvlist);
657 static int hostversions(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen)
659 aim_rxcallback_t userfunc;
662 vercount = datalen/4;
664 if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
665 return userfunc(sess, rx, vercount, data);
671 * Starting this past week (26 Mar 2001, say), AOL has started sending
672 * this nice little extra SNAC. AFAIK, it has never been used until now.
674 * The request contains eight bytes. The first four are an offset, the
675 * second four are a length.
677 * The offset is an offset into aim.exe when it is mapped during execution
678 * on Win32. So far, AOL has only been requesting bytes in static regions
679 * of memory. (I won't put it past them to start requesting data in
680 * less static regions -- regions that are initialized at run time, but still
681 * before the client recieves this request.)
683 * When the client recieves the request, it adds it to the current ds
684 * (0x00400000) and dereferences it, copying the data into a buffer which
685 * it then runs directly through the MD5 hasher. The 16 byte output of
686 * the hash is then sent back to the server.
688 * If the client does not send any data back, or the data does not match
689 * the data that the specific client should have, the client will get the
690 * following message from "AOL Instant Messenger":
691 * "You have been disconnected from the AOL Instant Message Service (SM)
692 * for accessing the AOL network using unauthorized software. You can
693 * download a FREE, fully featured, and authorized client, here
694 * http://www.aol.com/aim/download2.html"
695 * The connection is then closed, recieving disconnect code 1, URL
696 * http://www.aim.aol.com/errors/USER_LOGGED_OFF_NEW_LOGIN.html.
698 * Note, however, that numerous inconsistencies can cause the above error,
699 * not just sending back a bad hash. Do not immediatly suspect this code
700 * if you get disconnected. AOL and the open/free software community have
701 * played this game for a couple years now, generating the above message
702 * on numerous ocassions.
704 * Anyway, neener. We win again.
707 static int memrequest(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen)
709 aim_rxcallback_t userfunc;
710 unsigned long offset, len;
712 struct aim_tlvlist_t *list;
713 char *modname = NULL;
715 offset = aimutil_get32(data);
718 len = aimutil_get32(data+4);
721 list = aim_readtlvchain(data+i, datalen-i);
723 if (aim_gettlv(list, 0x0001, 1))
724 modname = aim_gettlv_str(list, 0x0001, 1);
726 faimdprintf(sess, 1, "data at 0x%08lx (%d bytes) of requested\n", offset, len, modname ? modname : "aim.exe");
728 if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
729 return userfunc(sess, rx, offset, len, modname);
732 aim_freetlvchain(&list);
737 static void dumpbox(struct aim_session_t *sess, unsigned char *buf, int len)
741 if (!sess || !buf || !len)
744 faimdprintf(sess, 1, "\nDump of %d bytes at %p:", len, buf);
746 for (i = 0; i < len; i++) {
748 faimdprintf(sess, 1, "\n\t");
750 faimdprintf(sess, 1, "0x%2x ", buf[i]);
753 faimdprintf(sess, 1, "\n\n");
758 faim_export int aim_sendmemblock(struct aim_session_t *sess, struct aim_conn_t *conn, unsigned long offset, unsigned long len, const unsigned char *buf, unsigned char flag)
760 struct command_tx_struct *tx;
766 if (!(tx = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+2+16)))
771 i = aim_putsnac(tx->data, 0x0001, 0x0020, 0x0000, sess->snac_nextid++);
772 i += aimutil_put16(tx->data+i, 0x0010); /* md5 is always 16 bytes */
774 if ((flag == AIM_SENDMEMBLOCK_FLAG_ISHASH) && buf && (len == 0x10)) { /* we're getting a hash */
776 memcpy(tx->data+i, buf, 0x10);
779 } else if (buf && (len > 0)) { /* use input buffer */
783 md5_append(&state, (const md5_byte_t *)buf, len);
784 md5_finish(&state, (md5_byte_t *)(tx->data+i));
787 } else if (len == 0) { /* no length, just hash NULL (buf is optional) */
789 unsigned char nil = '\0';
792 * These MD5 routines are stupid in that you have to have
793 * at least one append. So thats why this doesn't look
797 md5_append(&state, (const md5_byte_t *)&nil, 0);
798 md5_finish(&state, (md5_byte_t *)(tx->data+i));
804 * This data is correct for AIM 3.5.1670.
806 * Using these blocks is as close to "legal" as you can get
807 * without using an AIM binary.
810 if ((offset == 0x03ffffff) && (len == 0x03ffffff)) {
812 #if 1 /* with "AnrbnrAqhfzcd" */
813 i += aimutil_put32(tx->data+i, 0x44a95d26);
814 i += aimutil_put32(tx->data+i, 0xd2490423);
815 i += aimutil_put32(tx->data+i, 0x93b8821f);
816 i += aimutil_put32(tx->data+i, 0x51c54b01);
817 #else /* no filename */
818 i += aimutil_put32(tx->data+i, 0x1df8cbae);
819 i += aimutil_put32(tx->data+i, 0x5523b839);
820 i += aimutil_put32(tx->data+i, 0xa0e10db3);
821 i += aimutil_put32(tx->data+i, 0xa46d3b39);
824 } else if ((offset == 0x00001000) && (len == 0x00000000)) {
826 i += aimutil_put32(tx->data+i, 0xd41d8cd9);
827 i += aimutil_put32(tx->data+i, 0x8f00b204);
828 i += aimutil_put32(tx->data+i, 0xe9800998);
829 i += aimutil_put32(tx->data+i, 0xecf8427e);
832 faimdprintf(sess, 0, "sendmemblock: WARNING: unknown hash request\n");
838 aim_tx_enqueue(sess, tx);
843 static int snachandler(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen)
846 if (snac->subtype == 0x0003)
847 return hostonline(sess, mod, rx, snac, data, datalen);
848 else if (snac->subtype == 0x0005)
849 return redirect(sess, mod, rx, snac, data, datalen);
850 else if (snac->subtype == 0x0007)
851 return rateresp(sess, mod, rx, snac, data, datalen);
852 else if (snac->subtype == 0x000a)
853 return ratechange(sess, mod, rx, snac, data, datalen);
854 else if (snac->subtype == 0x000f)
855 return selfinfo(sess, mod, rx, snac, data, datalen);
856 else if (snac->subtype == 0x0010)
857 return evilnotify(sess, mod, rx, snac, data, datalen);
858 else if (snac->subtype == 0x0013)
859 return motd(sess, mod, rx, snac, data, datalen);
860 else if (snac->subtype == 0x0018)
861 return hostversions(sess, mod, rx, snac, data, datalen);
862 else if (snac->subtype == 0x001f)
863 return memrequest(sess, mod, rx, snac, data, datalen);
868 faim_internal int general_modfirst(struct aim_session_t *sess, aim_module_t *mod)
871 mod->family = 0x0001;
872 mod->version = 0x0000;
874 strncpy(mod->name, "general", sizeof(mod->name));
875 mod->snachandler = snachandler;