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_sendconnack(struct aim_session_t *sess,
16 struct aim_conn_t *conn)
20 struct command_tx_struct *newpacket;
22 if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0001, 4)))
27 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000);
28 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,
43 struct aim_conn_t *conn,
47 struct command_tx_struct *newpacket;
49 if (!sess || !conn || !sn)
53 * For ICQ, we enable the ancient horrible login and stuff
54 * a key packet into the queue to make it look like we got
55 * a reply back. This is so the client doesn't know we're
56 * really not doing MD5 login.
58 * This may sound stupid, but I'm not in the best of moods and
59 * I don't plan to keep support for this crap around much longer.
60 * Its all AOL's fault anyway, really. I hate AOL. Really. They
61 * always seem to be able to piss me off by doing the dumbest little
62 * things. Like disabling MD5 logins for ICQ UINs, or adding purposefully
63 * wrong TLV lengths, or adding superfluous information to host strings,
67 if ((sn[0] >= '0') && (sn[0] <= '9')) {
68 struct command_rx_struct *newrx;
71 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;
80 if (!(newrx->data = malloc(newrx->commandlen))) {
85 i = aim_putsnac(newrx->data, 0x0017, 0x0007, 0x0000, 0x0000);
86 i += aimutil_put16(newrx->data+i, 0x01);
87 i += aimutil_putstr(newrx->data+i, "0", 1);
91 newrx->next = sess->queue_incoming;
92 sess->queue_incoming = newrx;
96 sess->flags &= ~AIM_SESS_FLAGS_SNACLOGIN;
101 sess->flags |= AIM_SESS_FLAGS_SNACLOGIN;
103 aim_sendconnack(sess, conn);
105 if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+2+2+strlen(sn))))
110 curbyte = aim_putsnac(newpacket->data, 0x0017, 0x0006, 0x0000, 0x00010000);
111 curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0001, strlen(sn), sn);
113 newpacket->commandlen = curbyte;
116 return aim_tx_enqueue(sess, newpacket);
120 * send_login(int socket, char *sn, char *password)
122 * This is the initial login request packet.
124 * NOTE!! If you want/need to make use of the aim_sendmemblock() function,
125 * then the client information you send here must exactly match the
126 * executable that you're pulling the data from.
129 * clientstring = "AOL Instant Messenger (SM), version 4.3.2188/WIN32"
135 * unknown = 0x00000086
140 * Latest WinAIM that libfaim can emulate without server-side buddylists:
141 * clientstring = "AOL Instant Messenger (SM), version 4.1.2010/WIN32"
147 * unknown= 0x0000004b
150 * clientstring = "AOL Instant Messenger (SM), version 3.5.1670/WIN32"
156 * unknown =0x0000002a
159 * 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"
163 * minor2 = (not sent)
165 * unknown= (not sent)
167 * AIM for Linux 1.1.112:
168 * clientstring = "AOL Instant Messenger (SM)"
174 * unknown= 0x0000008b
178 faim_export int aim_send_login (struct aim_session_t *sess,
179 struct aim_conn_t *conn,
180 char *sn, char *password,
181 struct client_info_s *clientinfo,
185 struct command_tx_struct *newpacket;
187 if (!clientinfo || !sn || !password)
190 if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 1152)))
195 newpacket->hdr.oscar.type = (sess->flags & AIM_SESS_FLAGS_SNACLOGIN)?0x02:0x01;
197 if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN)
198 curbyte = aim_putsnac(newpacket->data, 0x0017, 0x0002, 0x0000, 0x00010000);
200 curbyte = aimutil_put16(newpacket->data, 0x0000);
201 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0001);
204 curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0001, strlen(sn), sn);
206 if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN) {
207 unsigned char digest[16];
209 aim_encode_password_md5(password, key, digest);
210 curbyte+= aim_puttlv_str(newpacket->data+curbyte, 0x0025, 16, (char *)digest);
212 char *password_encoded;
214 password_encoded = (char *) malloc(strlen(password));
215 aim_encode_password(password, password_encoded);
216 curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0002, strlen(password), password_encoded);
217 free(password_encoded);
220 curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0003, strlen(clientinfo->clientstring), clientinfo->clientstring);
222 if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN) {
224 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0016, (unsigned short)clientinfo->major2);
225 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0017, (unsigned short)clientinfo->major);
226 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0018, (unsigned short)clientinfo->minor);
227 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0019, (unsigned short)clientinfo->minor2);
228 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x001a, (unsigned short)clientinfo->build);
231 /* Use very specific version numbers, to further indicate the hack. */
232 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0016, 0x010a);
233 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0017, 0x0004);
234 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0018, 0x003c);
235 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0019, 0x0001);
236 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x001a, 0x0cce);
237 curbyte += aim_puttlv_32(newpacket->data+curbyte, 0x0014, 0x00000055);
240 curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000e, strlen(clientinfo->country), clientinfo->country);
241 curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000f, strlen(clientinfo->lang), clientinfo->lang);
243 if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN) {
244 curbyte += aim_puttlv_32(newpacket->data+curbyte, 0x0014, clientinfo->unknown);
245 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0009, 0x0015);
248 newpacket->commandlen = curbyte;
251 return aim_tx_enqueue(sess, newpacket);
254 faim_export int aim_encode_password_md5(const char *password, const char *key, unsigned char *digest)
259 md5_append(&state, (const md5_byte_t *)key, strlen(key));
260 md5_append(&state, (const md5_byte_t *)password, strlen(password));
261 md5_append(&state, (const md5_byte_t *)AIM_MD5_STRING, strlen(AIM_MD5_STRING));
262 md5_finish(&state, (md5_byte_t *)digest);
268 * aim_encode_password - Encode a password using old XOR method
269 * @password: incoming password
270 * @encoded: buffer to put encoded password
272 * This takes a const pointer to a (null terminated) string
273 * containing the unencoded password. It also gets passed
274 * an already allocated buffer to store the encoded password.
275 * This buffer should be the exact length of the password without
276 * the null. The encoded password buffer /is not %NULL terminated/.
278 * The encoding_table seems to be a fixed set of values. We'll
279 * hope it doesn't change over time!
281 * This is only used for the XOR method, not the better MD5 method.
284 static int aim_encode_password(const char *password, unsigned char *encoded)
286 u_char encoding_table[] = {
287 #if 0 /* old v1 table */
288 0xf3, 0xb3, 0x6c, 0x99,
289 0x95, 0x3f, 0xac, 0xb6,
290 0xc5, 0xfa, 0x6b, 0x63,
291 0x69, 0x6c, 0xc3, 0x9f
292 #else /* v2.1 table, also works for ICQ */
293 0xf3, 0x26, 0x81, 0xc4,
294 0x39, 0x86, 0xdb, 0x92,
295 0x71, 0xa3, 0xb9, 0xe6,
296 0x53, 0x7a, 0x95, 0x7c
302 for (i = 0; i < strlen(password); i++)
303 encoded[i] = (password[i] ^ encoding_table[i]);
309 * Generate an authorization response.
311 * You probably don't want this unless you're writing an AIM server.
314 faim_export unsigned long aim_sendauthresp(struct aim_session_t *sess,
315 struct aim_conn_t *conn,
316 char *sn, int errorcode,
317 char *errorurl, char *bosip,
318 char *cookie, char *email,
321 struct command_tx_struct *tx;
322 struct aim_tlvlist_t *tlvlist = NULL;
324 if (!(tx = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0004, 1152)))
330 aim_addtlvtochain_str(&tlvlist, 0x0001, sn, strlen(sn));
332 aim_addtlvtochain_str(&tlvlist, 0x0001, sess->sn, strlen(sess->sn));
335 aim_addtlvtochain16(&tlvlist, 0x0008, errorcode);
336 aim_addtlvtochain_str(&tlvlist, 0x0004, errorurl, strlen(errorurl));
338 aim_addtlvtochain_str(&tlvlist, 0x0005, bosip, strlen(bosip));
339 aim_addtlvtochain_str(&tlvlist, 0x0006, cookie, AIM_COOKIELEN);
340 aim_addtlvtochain_str(&tlvlist, 0x0011, email, strlen(email));
341 aim_addtlvtochain16(&tlvlist, 0x0013, (unsigned short)regstatus);
344 tx->commandlen = aim_writetlvchain(tx->data, tx->commandlen, &tlvlist);
347 return aim_tx_enqueue(sess, tx);
351 * Generate a random cookie. (Non-client use only)
353 faim_export int aim_gencookie(unsigned char *buf)
359 for (i=0; i < AIM_COOKIELEN; i++)
360 buf[i] = 1+(int) (256.0*rand()/(RAND_MAX+0.0));
366 * Send Server Ready. (Non-client)
368 faim_export int aim_sendserverready(struct aim_session_t *sess, struct aim_conn_t *conn)
370 struct command_tx_struct *tx;
373 if (!(tx = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+0x22)))
378 i += aim_putsnac(tx->data, 0x0001, 0x0003, 0x0000, sess->snac_nextid++);
380 i += aimutil_put16(tx->data+i, 0x0001);
381 i += aimutil_put16(tx->data+i, 0x0002);
382 i += aimutil_put16(tx->data+i, 0x0003);
383 i += aimutil_put16(tx->data+i, 0x0004);
384 i += aimutil_put16(tx->data+i, 0x0006);
385 i += aimutil_put16(tx->data+i, 0x0008);
386 i += aimutil_put16(tx->data+i, 0x0009);
387 i += aimutil_put16(tx->data+i, 0x000a);
388 i += aimutil_put16(tx->data+i, 0x000b);
389 i += aimutil_put16(tx->data+i, 0x000c);
390 i += aimutil_put16(tx->data+i, 0x0013);
391 i += aimutil_put16(tx->data+i, 0x0015);
395 return aim_tx_enqueue(sess, tx);
400 * Send service redirect. (Non-Client)
402 faim_export unsigned long aim_sendredirect(struct aim_session_t *sess,
403 struct aim_conn_t *conn,
404 unsigned short servid,
408 struct command_tx_struct *tx;
409 struct aim_tlvlist_t *tlvlist = NULL;
412 if (!(tx = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 1152)))
417 i += aim_putsnac(tx->data+i, 0x0001, 0x0005, 0x0000, 0x00000000);
419 aim_addtlvtochain16(&tlvlist, 0x000d, servid);
420 aim_addtlvtochain_str(&tlvlist, 0x0005, ip, strlen(ip));
421 aim_addtlvtochain_str(&tlvlist, 0x0006, cookie, AIM_COOKIELEN);
423 tx->commandlen = aim_writetlvchain(tx->data+i, tx->commandlen-i, &tlvlist)+i;
424 aim_freetlvchain(&tlvlist);
427 return aim_tx_enqueue(sess, tx);
431 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)
433 aim_rxcallback_t userfunc;
435 unsigned short *families;
438 famcount = datalen/2;
440 if (!(families = malloc(datalen)))
443 for (i = 0; i < famcount; i++)
444 families[i] = aimutil_get16(data+(i*2));
446 if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
447 ret = userfunc(sess, rx, famcount, families);
454 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)
457 unsigned char *cookie;
459 aim_rxcallback_t userfunc;
460 struct aim_tlvlist_t *tlvlist;
461 char *chathack = NULL;
465 tlvlist = aim_readtlvchain(data, datalen);
467 if (!aim_gettlv(tlvlist, 0x000d, 1) ||
468 !aim_gettlv(tlvlist, 0x0005, 1) ||
469 !aim_gettlv(tlvlist, 0x0006, 1)) {
470 aim_freetlvchain(&tlvlist);
474 serviceid = aim_gettlv16(tlvlist, 0x000d, 1);
475 ip = aim_gettlv_str(tlvlist, 0x0005, 1);
476 cookie = aim_gettlv_str(tlvlist, 0x0006, 1);
482 if ((serviceid == AIM_CONN_TYPE_CHAT) && sess->pendingjoin) {
483 chathack = sess->pendingjoin;
484 chathackex = sess->pendingjoinexchange;
485 sess->pendingjoin = NULL;
486 sess->pendingjoinexchange = 0;
489 if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
490 ret = userfunc(sess, rx, serviceid, ip, cookie, chathack, chathackex);
496 aim_freetlvchain(&tlvlist);
502 * The Rate Limiting System, An Abridged Guide to Nonsense.
504 * OSCAR defines several 'rate classes'. Each class has seperate
505 * rate limiting properties (limit level, alert level, disconnect
506 * level, etc), and a set of SNAC family/type pairs associated with
507 * it. The rate classes, their limiting properties, and the definitions
508 * of which SNACs are belong to which class, are defined in the
509 * Rate Response packet at login to each host.
511 * Logically, all rate offenses within one class count against further
512 * offenses for other SNACs in the same class (ie, sending messages
513 * too fast will limit the number of user info requests you can send,
514 * since those two SNACs are in the same rate class).
516 * Since the rate classes are defined dynamically at login, the values
517 * below may change. But they seem to be fairly constant.
519 * Currently, BOS defines five rate classes, with the commonly used
520 * members as follows...
523 * - Everything thats not in any of the other classes
526 * - Buddy list add/remove
527 * - Permit list add/remove
528 * - Deny list add/remove
531 * - User information requests
535 * - A few unknowns: 2/9, 2/b, and f/2
539 * - Outgoing chat ICBMs
541 * The only other thing of note is that class 5 (chat) has slightly looser
542 * limiting properties than class 3 (normal messages). But thats just a
543 * small bit of trivia for you.
545 * The last thing that needs to be learned about the rate limiting
546 * system is how the actual numbers relate to the passing of time. This
547 * seems to be a big mystery.
552 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)
554 aim_rxcallback_t userfunc;
556 if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
557 return userfunc(sess, rx);
562 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)
564 aim_rxcallback_t userfunc;
566 unsigned long currentavg, maxavg;
567 unsigned long rateclass, windowsize, clear, alert, limit, disconnect;
569 code = aimutil_get16(data+i);
572 rateclass = aimutil_get16(data+i);
575 windowsize = aimutil_get32(data+i);
577 clear = aimutil_get32(data+i);
579 alert = aimutil_get32(data+i);
581 limit = aimutil_get32(data+i);
583 disconnect = aimutil_get32(data+i);
585 currentavg = aimutil_get32(data+i);
587 maxavg = aimutil_get32(data+i);
590 if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
591 return userfunc(sess, rx, code, rateclass, windowsize, clear, alert, limit, disconnect, currentavg, maxavg);
597 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)
599 aim_rxcallback_t userfunc;
601 if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
602 return userfunc(sess, rx);
607 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)
609 aim_rxcallback_t userfunc = NULL;
611 unsigned short newevil;
612 struct aim_userinfo_s userinfo;
614 newevil = aimutil_get16(data);
617 memset(&userinfo, 0, sizeof(struct aim_userinfo_s));
620 i += aim_extractuserinfo(sess, data+i, &userinfo);
622 if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
623 return userfunc(sess, rx, newevil, &userinfo);
628 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)
630 aim_rxcallback_t userfunc;
633 struct aim_tlvlist_t *tlvlist;
640 * 1 Mandatory upgrade
643 * 4 Nothing's wrong ("top o the world" -- normal)
646 id = aimutil_get16(data);
651 if ((tlvlist = aim_readtlvchain(data+2, datalen-2)))
652 msg = aim_gettlv_str(tlvlist, 0x000b, 1);
654 if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
655 ret = userfunc(sess, rx, id, msg);
659 aim_freetlvchain(&tlvlist);
664 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)
666 aim_rxcallback_t userfunc;
669 vercount = datalen/4;
671 if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
672 return userfunc(sess, rx, vercount, data);
678 * Starting this past week (26 Mar 2001, say), AOL has started sending
679 * this nice little extra SNAC. AFAIK, it has never been used until now.
681 * The request contains eight bytes. The first four are an offset, the
682 * second four are a length.
684 * The offset is an offset into aim.exe when it is mapped during execution
685 * on Win32. So far, AOL has only been requesting bytes in static regions
686 * of memory. (I won't put it past them to start requesting data in
687 * less static regions -- regions that are initialized at run time, but still
688 * before the client recieves this request.)
690 * When the client recieves the request, it adds it to the current ds
691 * (0x00400000) and dereferences it, copying the data into a buffer which
692 * it then runs directly through the MD5 hasher. The 16 byte output of
693 * the hash is then sent back to the server.
695 * If the client does not send any data back, or the data does not match
696 * the data that the specific client should have, the client will get the
697 * following message from "AOL Instant Messenger":
698 * "You have been disconnected from the AOL Instant Message Service (SM)
699 * for accessing the AOL network using unauthorized software. You can
700 * download a FREE, fully featured, and authorized client, here
701 * http://www.aol.com/aim/download2.html"
702 * The connection is then closed, recieving disconnect code 1, URL
703 * http://www.aim.aol.com/errors/USER_LOGGED_OFF_NEW_LOGIN.html.
705 * Note, however, that numerous inconsistencies can cause the above error,
706 * not just sending back a bad hash. Do not immediatly suspect this code
707 * if you get disconnected. AOL and the open/free software community have
708 * played this game for a couple years now, generating the above message
709 * on numerous ocassions.
711 * Anyway, neener. We win again.
714 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)
716 aim_rxcallback_t userfunc;
717 unsigned long offset, len;
719 struct aim_tlvlist_t *list;
720 char *modname = NULL;
722 offset = aimutil_get32(data);
725 len = aimutil_get32(data+4);
728 list = aim_readtlvchain(data+i, datalen-i);
730 if (aim_gettlv(list, 0x0001, 1))
731 modname = aim_gettlv_str(list, 0x0001, 1);
733 faimdprintf(sess, 1, "data at 0x%08lx (%d bytes) of requested\n", offset, len, modname?modname:"aim.exe");
735 if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
736 return userfunc(sess, rx, offset, len, modname);
739 aim_freetlvchain(&list);
744 static void dumpbox(struct aim_session_t *sess, unsigned char *buf, int len)
748 if (!sess || !buf || !len)
751 faimdprintf(sess, 1, "\nDump of %d bytes at %p:", len, buf);
753 for (i = 0; i < len; i++)
756 faimdprintf(sess, 1, "\n\t");
758 faimdprintf(sess, 1, "0x%2x ", buf[i]);
761 faimdprintf(sess, 1, "\n\n");
766 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)
768 struct command_tx_struct *tx;
774 if (!(tx = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+2+16)))
779 i = aim_putsnac(tx->data, 0x0001, 0x0020, 0x0000, sess->snac_nextid++);
780 i += aimutil_put16(tx->data+i, 0x0010); /* md5 is always 16 bytes */
782 if ((flag == AIM_SENDMEMBLOCK_FLAG_ISHASH) &&
783 buf && (len == 0x10)) { /* we're getting a hash */
785 memcpy(tx->data+i, buf, 0x10);
788 } else if (buf && (len > 0)) { /* use input buffer */
792 md5_append(&state, (const md5_byte_t *)buf, len);
793 md5_finish(&state, (md5_byte_t *)(tx->data+i));
796 } else if (len == 0) { /* no length, just hash NULL (buf is optional) */
798 unsigned char nil = '\0';
801 * These MD5 routines are stupid in that you have to have
802 * at least one append. So thats why this doesn't look
806 md5_append(&state, (const md5_byte_t *)&nil, 0);
807 md5_finish(&state, (md5_byte_t *)(tx->data+i));
813 * This data is correct for AIM 3.5.1670.
815 * Using these blocks is as close to "legal" as you can get without
816 * using an AIM binary.
819 if ((offset == 0x03ffffff) && (len == 0x03ffffff)) {
821 #if 1 /* with "AnrbnrAqhfzcd" */
822 i += aimutil_put32(tx->data+i, 0x44a95d26);
823 i += aimutil_put32(tx->data+i, 0xd2490423);
824 i += aimutil_put32(tx->data+i, 0x93b8821f);
825 i += aimutil_put32(tx->data+i, 0x51c54b01);
826 #else /* no filename */
827 i += aimutil_put32(tx->data+i, 0x1df8cbae);
828 i += aimutil_put32(tx->data+i, 0x5523b839);
829 i += aimutil_put32(tx->data+i, 0xa0e10db3);
830 i += aimutil_put32(tx->data+i, 0xa46d3b39);
833 } else if ((offset == 0x00001000) && (len == 0x00000000)) {
835 i += aimutil_put32(tx->data+i, 0xd41d8cd9);
836 i += aimutil_put32(tx->data+i, 0x8f00b204);
837 i += aimutil_put32(tx->data+i, 0xe9800998);
838 i += aimutil_put32(tx->data+i, 0xecf8427e);
841 faimdprintf(sess, 0, "sendmemblock: WARNING: unknown hash request\n");
847 aim_tx_enqueue(sess, tx);
852 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)
855 if (snac->subtype == 0x0003)
856 return hostonline(sess, mod, rx, snac, data, datalen);
857 else if (snac->subtype == 0x0005)
858 return redirect(sess, mod, rx, snac, data, datalen);
859 else if (snac->subtype == 0x0007)
860 return rateresp(sess, mod, rx, snac, data, datalen);
861 else if (snac->subtype == 0x000a)
862 return ratechange(sess, mod, rx, snac, data, datalen);
863 else if (snac->subtype == 0x000f)
864 return selfinfo(sess, mod, rx, snac, data, datalen);
865 else if (snac->subtype == 0x0010)
866 return evilnotify(sess, mod, rx, snac, data, datalen);
867 else if (snac->subtype == 0x0013)
868 return motd(sess, mod, rx, snac, data, datalen);
869 else if (snac->subtype == 0x0018)
870 return hostversions(sess, mod, rx, snac, data, datalen);
871 else if (snac->subtype == 0x001f)
872 return memrequest(sess, mod, rx, snac, data, datalen);
877 faim_internal int general_modfirst(struct aim_session_t *sess, aim_module_t *mod)
880 mod->family = 0x0001;
881 mod->version = 0x0000;
883 strncpy(mod->name, "general", sizeof(mod->name));
884 mod->snachandler = snachandler;