X-Git-Url: http://andersk.mit.edu/gitweb/libfaim.git/blobdiff_plain/a25832e66b80e7159f37795cff5593b748ac5f59..225174938751264d2d11d880ca820a66961c694c:/aim_im.c diff --git a/aim_im.c b/aim_im.c index 2d038b4..216d2c0 100644 --- a/aim_im.c +++ b/aim_im.c @@ -17,31 +17,24 @@ * when the message is received (of type 0x0004/0x000c) * */ -u_long aim_send_im(struct aim_session_t *sess, - struct aim_conn_t *conn, - char *destsn, u_int flags, char *msg) +faim_export unsigned long aim_send_im(struct aim_session_t *sess, + struct aim_conn_t *conn, + char *destsn, u_int flags, char *msg) { int curbyte,i; - struct command_tx_struct newpacket; + struct command_tx_struct *newpacket; - newpacket.lock = 1; /* lock struct */ - newpacket.type = 0x02; /* IMs are always family 0x02 */ - if (conn) - newpacket.conn = conn; - else - newpacket.conn = aim_getconn_type(sess, AIM_CONN_TYPE_BOS); + if (strlen(msg) >= MAXMSGLEN) + return -1; - /* - * Its simplest to set this arbitrarily large and waste - * space. Precalculating is costly here. - */ - newpacket.commandlen = 1152; + if (!(newpacket = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, strlen(msg)+256))) + return -1; - newpacket.data = (u_char *) calloc(1, newpacket.commandlen); + newpacket->lock = 1; /* lock struct */ curbyte = 0; - curbyte += aim_putsnac(newpacket.data+curbyte, + curbyte += aim_putsnac(newpacket->data+curbyte, 0x0004, 0x0006, 0x0000, sess->snac_nextid); /* @@ -54,70 +47,76 @@ u_long aim_send_im(struct aim_session_t *sess, * */ for (i=0;i<8;i++) - curbyte += aimutil_put8(newpacket.data+curbyte, (u_char) random()); + curbyte += aimutil_put8(newpacket->data+curbyte, (u_char) rand()); /* * Channel ID */ - curbyte += aimutil_put16(newpacket.data+curbyte,0x0001); + curbyte += aimutil_put16(newpacket->data+curbyte,0x0001); /* * Destination SN (prepended with byte length) */ - curbyte += aimutil_put8(newpacket.data+curbyte,strlen(destsn)); - curbyte += aimutil_putstr(newpacket.data+curbyte, destsn, strlen(destsn)); + curbyte += aimutil_put8(newpacket->data+curbyte,strlen(destsn)); + curbyte += aimutil_putstr(newpacket->data+curbyte, destsn, strlen(destsn)); /* * metaTLV start. */ - curbyte += aimutil_put16(newpacket.data+curbyte, 0x0002); - curbyte += aimutil_put16(newpacket.data+curbyte, strlen(msg) + 0x0d); + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002); + curbyte += aimutil_put16(newpacket->data+curbyte, strlen(msg) + 0x10); /* - * Flag data? + * Flag data / ICBM Parameters? */ - curbyte += aimutil_put16(newpacket.data+curbyte, 0x0501); - curbyte += aimutil_put16(newpacket.data+curbyte, 0x0001); - curbyte += aimutil_put16(newpacket.data+curbyte, 0x0101); - curbyte += aimutil_put8 (newpacket.data+curbyte, 0x01); + curbyte += aimutil_put8(newpacket->data+curbyte, 0x05); + curbyte += aimutil_put8(newpacket->data+curbyte, 0x01); + + /* number of bytes to follow */ + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0004); + curbyte += aimutil_put8(newpacket->data+curbyte, 0x01); + curbyte += aimutil_put8(newpacket->data+curbyte, 0x01); + curbyte += aimutil_put8(newpacket->data+curbyte, 0x01); + curbyte += aimutil_put8(newpacket->data+curbyte, 0x02); + + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0101); /* * Message block length. */ - curbyte += aimutil_put16(newpacket.data+curbyte, strlen(msg) + 0x04); + curbyte += aimutil_put16(newpacket->data+curbyte, strlen(msg) + 0x04); /* * Character set data? */ - curbyte += aimutil_put16(newpacket.data+curbyte, 0x0000); - curbyte += aimutil_put16(newpacket.data+curbyte, 0x0000); + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); /* * Message. Not terminated. */ - curbyte += aimutil_putstr(newpacket.data+curbyte,msg, strlen(msg)); + curbyte += aimutil_putstr(newpacket->data+curbyte,msg, strlen(msg)); /* * Set the Request Acknowledge flag. */ - if (flags & AIM_IMFLAGS_ACK) - { - curbyte += aimutil_put16(newpacket.data+curbyte,0x0003); - curbyte += aimutil_put16(newpacket.data+curbyte,0x0000); - } + if (flags & AIM_IMFLAGS_ACK) { + curbyte += aimutil_put16(newpacket->data+curbyte,0x0003); + curbyte += aimutil_put16(newpacket->data+curbyte,0x0000); + } /* * Set the Autoresponse flag. */ - if (flags & AIM_IMFLAGS_AWAY) - { - curbyte += aimutil_put16(newpacket.data+curbyte,0x0004); - curbyte += aimutil_put16(newpacket.data+curbyte,0x0000); - } + if (flags & AIM_IMFLAGS_AWAY) { + curbyte += aimutil_put16(newpacket->data+curbyte,0x0004); + curbyte += aimutil_put16(newpacket->data+curbyte,0x0000); + } - newpacket.commandlen = curbyte; + newpacket->commandlen = curbyte; + newpacket->lock = 0; - aim_tx_enqueue(sess, &newpacket); + aim_tx_enqueue(sess, newpacket); #ifdef USE_SNAC_FOR_IMS { @@ -140,6 +139,74 @@ u_long aim_send_im(struct aim_session_t *sess, return (sess->snac_nextid++); } +faim_internal int aim_parse_outgoing_im_middle(struct aim_session_t *sess, + struct command_rx_struct *command) +{ + unsigned int i = 0, z; + rxcallback_t userfunc = NULL; + unsigned char cookie[8]; + int channel; + struct aim_tlvlist_t *tlvlist; + char sn[MAXSNLEN]; + unsigned short icbmflags = 0; + unsigned char flag1 = 0, flag2 = 0; + unsigned char *msgblock = NULL, *msg = NULL; + + i = 10; + + /* ICBM Cookie. */ + for (z=0; z<8; z++,i++) + cookie[z] = command->data[i]; + + /* Channel ID */ + channel = aimutil_get16(command->data+i); + i += 2; + + if (channel != 0x01) { + printf("faim: icbm: ICBM recieved on unsupported channel. Ignoring. (chan = %04x)\n", channel); + return 1; + } + + strncpy(sn, (char *) command->data+i+1, (int) *(command->data+i)); + i += 1 + (int) *(command->data+i); + + tlvlist = aim_readtlvchain(command->data+i, command->commandlen-i); + + if (aim_gettlv(tlvlist, 0x0003, 1)) + icbmflags |= AIM_IMFLAGS_ACK; + if (aim_gettlv(tlvlist, 0x0004, 1)) + icbmflags |= AIM_IMFLAGS_AWAY; + + if (aim_gettlv(tlvlist, 0x0002, 1)) { + int j = 0; + + msgblock = (unsigned char *)aim_gettlv_str(tlvlist, 0x0002, 1); + + /* no, this really is correct. I'm not high or anything either. */ + j += 2; + j += 2 + aimutil_get16(msgblock+j); + j += 2; + + j += 2; /* final block length */ + + flag1 = aimutil_get16(msgblock); + j += 2; + flag2 = aimutil_get16(msgblock); + j += 2; + + msg = msgblock+j; + } + + if ((userfunc = aim_callhandler(command->conn, 0x0004, 0x0006)) || (i = 0)) + i = userfunc(sess, command, channel, sn, msg, icbmflags, flag1, flag2); + + if (msgblock) + free(msgblock); + aim_freetlvchain(&tlvlist); + + return 0; +} + /* * It can easily be said that parsing ICBMs is THE single * most difficult thing to do in the in AIM protocol. In @@ -155,24 +222,19 @@ u_long aim_send_im(struct aim_session_t *sess, * room we're invited to, but obviously can't attend... * */ -int aim_parse_incoming_im_middle(struct aim_session_t *sess, - struct command_rx_struct *command) +faim_internal int aim_parse_incoming_im_middle(struct aim_session_t *sess, + struct command_rx_struct *command) { - struct aim_userinfo_s userinfo; - u_int i = 0, j = 0, y = 0, z = 0; - char *msg = NULL; - u_int icbmflags = 0; + u_int i = 0,z; rxcallback_t userfunc = NULL; u_char cookie[8]; int channel; struct aim_tlvlist_t *tlvlist; - struct aim_tlv_t *msgblocktlv, *tmptlv; - u_char *msgblock; + struct aim_userinfo_s userinfo; u_short wastebits; - u_short flag1,flag2; memset(&userinfo, 0x00, sizeof(struct aim_userinfo_s)); - + i = 10; /* Skip SNAC header */ /* @@ -187,161 +249,536 @@ int aim_parse_incoming_im_middle(struct aim_session_t *sess, * Channel 0x0001 is the message channel. There are * other channels for things called "rendevous" * which represent chat and some of the other new - * features of AIM2/3/3.5. We only support - * standard messages; those on channel 0x0001. + * features of AIM2/3/3.5. + * + * Channel 0x0002 is the Rendevous channel, which + * is where Chat Invitiations and various client-client + * connection negotiations come from. + * */ channel = aimutil_get16(command->data+i); i += 2; - if (channel != 0x0001) + + /* + * + */ + if ((channel != 0x01) && (channel != 0x02)) { printf("faim: icbm: ICBM received on an unsupported channel. Ignoring.\n (chan = %04x)", channel); return 1; } /* - * Source screen name. - */ - memcpy(userinfo.sn, command->data+i+1, (int)command->data[i]); - userinfo.sn[(int)command->data[i]] = '\0'; - i += 1 + (int)command->data[i]; - - /* - * Unknown bits. + * Extract the standard user info block. + * + * Note that although this contains TLVs that appear contiguous + * with the TLVs read below, they are two different pieces. The + * userinfo block contains the number of TLVs that contain user + * information, the rest are not even though there is no seperation. + * aim_extractuserinfo() returns the number of bytes used by the + * userinfo tlvs, so you can start reading the rest of them right + * afterward. + * + * That also means that TLV types can be duplicated between the + * userinfo block and the rest of the message, however there should + * never be two TLVs of the same type in one block. + * */ - wastebits = aimutil_get16(command->data+i); - i += 2; - wastebits = aimutil_get16(command->data+i); - i += 2; - + i += aim_extractuserinfo(command->data+i, &userinfo); + /* - * Read block of TLVs. All further data is derived - * from what is parsed here. + * Read block of TLVs (not including the userinfo data). All + * further data is derived from what is parsed here. */ tlvlist = aim_readtlvchain(command->data+i, command->commandlen-i); /* - * Check Autoresponse status. If it is an autoresponse, - * it will contain a second type 0x0004 TLV, with zero length. - */ - if (aim_gettlv(tlvlist, 0x0004, 2)) - icbmflags |= AIM_IMFLAGS_AWAY; - - /* - * Check Ack Request status. - */ - if (aim_gettlv(tlvlist, 0x0003, 2)) - icbmflags |= AIM_IMFLAGS_ACK; - - /* - * Extract the various pieces of the userinfo struct. + * From here on, its depends on what channel we're on. */ - /* Class. */ - if ((tmptlv = aim_gettlv(tlvlist, 0x0001, 1))) - userinfo.class = aimutil_get16(tmptlv->value); - /* Member-since date. */ - if ((tmptlv = aim_gettlv(tlvlist, 0x0002, 1))) + if (channel == 1) { - /* If this is larger than 4, its probably the message block, skip */ - if (tmptlv->length <= 4) - userinfo.membersince = aimutil_get32(tmptlv->value); + u_int j = 0, y = 0, z = 0; + char *msg = NULL; + u_int icbmflags = 0; + struct aim_tlv_t *msgblocktlv; + u_char *msgblock; + u_short flag1,flag2; + + /* + * Check Autoresponse status. If it is an autoresponse, + * it will contain a type 0x0004 TLV, with zero length. + */ + if (aim_gettlv(tlvlist, 0x0004, 1)) + icbmflags |= AIM_IMFLAGS_AWAY; + + /* + * Check Ack Request status. + */ + if (aim_gettlv(tlvlist, 0x0003, 1)) + icbmflags |= AIM_IMFLAGS_ACK; + + /* + * Message block. + */ + msgblocktlv = aim_gettlv(tlvlist, 0x0002, 1); + if (!msgblocktlv || !msgblocktlv->value) { + printf("faim: icbm: major error! no message block TLV found!\n"); + aim_freetlvchain(&tlvlist); + return 1; + } + + /* + * Extracting the message from the unknown cruft. + * + * This is a bit messy, and I'm not really qualified, + * even as the author, to comment on it. At least + * its not as bad as a while loop shooting into infinity. + * + * "Do you believe in magic?" + * + */ + msgblock = msgblocktlv->value; + j = 0; + + wastebits = aimutil_get8(msgblock+j++); + wastebits = aimutil_get8(msgblock+j++); + + y = aimutil_get16(msgblock+j); + j += 2; + for (z = 0; z < y; z++) + wastebits = aimutil_get8(msgblock+j++); + wastebits = aimutil_get8(msgblock+j++); + wastebits = aimutil_get8(msgblock+j++); + + /* + * Message string length, including flag words. + */ + i = aimutil_get16(msgblock+j); + j += 2; + + /* + * Flag words. + * + * Its rumored that these can kick in some funky + * 16bit-wide char stuff that used to really kill + * libfaim. Hopefully the latter is no longer true. + * + * Though someone should investiagte the former. + * + */ + flag1 = aimutil_get16(msgblock+j); + j += 2; + flag2 = aimutil_get16(msgblock+j); + j += 2; + + if (flag1 || flag2) + printf("faim: icbm: **warning: encoding flags are being used! {%04x, %04x}\n", flag1, flag2); + + /* + * Message string. + */ + i -= 4; + msg = (char *)malloc(i+1); + memcpy(msg, msgblock+j, i); + msg[i] = '\0'; + + /* + * Call client. + */ + userfunc = aim_callhandler(command->conn, 0x0004, 0x0007); + if (userfunc) + i = userfunc(sess, command, channel, &userinfo, msg, icbmflags, flag1, flag2); + else + i = 0; + + free(msg); } - /* On-since date */ - if ((tmptlv = aim_gettlv(tlvlist, 0x0003, 1))) - userinfo.onlinesince = aimutil_get32(tmptlv->value); - /* Idle-time */ - if ((tmptlv = aim_gettlv(tlvlist, 0x0004, 1))) - userinfo.idletime = aimutil_get16(tmptlv->value); - /* Session Length (AIM) */ - if ((tmptlv = aim_gettlv(tlvlist, 0x000f, 1))) - userinfo.sessionlen = aimutil_get16(tmptlv->value); - /* Session Length (AOL) */ - if ((tmptlv = aim_gettlv(tlvlist, 0x0010, 1))) - userinfo.sessionlen = aimutil_get16(tmptlv->value); + else if (channel == 0x0002) + { + struct aim_tlv_t *block1; + struct aim_tlvlist_t *list2; + unsigned short reqclass = 0; + unsigned short status = 0; + + /* + * There's another block of TLVs embedded in the type 5 here. + */ + block1 = aim_gettlv(tlvlist, 0x0005, 1); + if (!block1) { + printf("faim: no tlv 0x0005 in rendezvous transaction!\n"); + aim_freetlvchain(&tlvlist); + return 1; /* major problem */ + } + + /* + * First two bytes represent the status of the connection. + * + * 0 is a request, 2 is an accept + */ + status = aimutil_get16(block1->value+0); + + /* + * Next comes the cookie. Should match the ICBM cookie. + */ + if (memcmp(block1->value+2, cookie, 8) != 0) + printf("faim: rend: warning cookies don't match!\n"); + + /* + * The next 16bytes are a capability block so we can + * identify what type of rendezvous this is. + * + * Thanks to Eric Warmenhoven (of GAIM) + * for pointing some of this out to me. In fact, a lot of + * the client-to-client info comes from the work of the GAIM + * developers. Thanks! + * + * Read off one capability string and we should have it ID'd. + * + */ + reqclass = aim_getcap(block1->value+2+8, 0x10); + if (reqclass == 0x0000) { + printf("faim: rend: no ID block\n"); + aim_freetlvchain(&tlvlist); + return 1; + } + + /* + * What follows may be TLVs or nothing, depending on the + * purpose of the message. + * + * Ack packets for instance have nothing more to them. + */ + list2 = aim_readtlvchain(block1->value+2+8+16, block1->length-2-8-16); + + if (!list2 || ((reqclass != AIM_CAPS_IMIMAGE) && !(aim_gettlv(list2, 0x2711, 1)))) { + struct aim_msgcookie_t *cook; + int type; + + type = aim_msgcookie_gettype(reqclass); /* XXX: fix this shitty code */ + + if ((cook = aim_uncachecookie(sess, cookie, type)) == NULL) { + printf("faim: non-data rendezvous thats not in cache!\n"); + aim_freetlvchain(&list2); + aim_freetlvchain(&tlvlist); + return 1; + } + + if (cook->type == AIM_CAPS_SENDFILE) { + struct aim_filetransfer_priv *ft; + + if (cook->data) { + struct aim_tlv_t *errortlv; + int errorcode = -1; + + ft = (struct aim_filetransfer_priv *)cook->data; + + if ((errortlv = aim_gettlv(list2, 0x000b, 1))) { + errorcode = aimutil_get16(errortlv->value); + } + if (errorcode) { + printf("faim: transfer from %s (%s) for %s cancelled (error code %d)\n", ft->sn, ft->ip, ft->fh.name, errorcode); + } else if (status == 0x0002) { /* connection accepted */ + printf("faim: transfer from %s (%s) for %s accepted\n", ft->sn, ft->ip, ft->fh.name); + } + free(cook->data); + } else { + printf("faim: not data attached to file transfer\n"); + } + } else if (cook->type == AIM_CAPS_VOICE) { + printf("faim: voice request cancelled\n"); + } else { + printf("faim: unknown cookie cache type %d\n", cook->type); + } + + free(cook); + if (list2) + aim_freetlvchain(&list2); + aim_freetlvchain(&tlvlist); + return 1; + } + + /* + * The rest of the handling depends on what type it is. + */ + if (reqclass & AIM_CAPS_BUDDYICON) { + + /* + * Call client. + */ +#if 0 + userfunc = aim_callhandler(command->conn, 0x0004, 0x0007); + if (userfunc || (i = 0)) + i = userfunc(sess, + command, + channel, + reqclass, + &userinfo, + ip, + cookie); +#endif - /* - * Message block. - * - * XXX: Will the msgblock always be the second 0x0002? - */ - msgblocktlv = aim_gettlv(tlvlist, 0x0002, 1); - if (!msgblocktlv) - { - printf("faim: icbm: major error! no message block TLV found!\n"); - aim_freetlvchain(&tlvlist); + } else if (reqclass & AIM_CAPS_VOICE) { + struct aim_msgcookie_t *cachedcook; + + printf("faim: rend: voice!\n"); + + if(!(cachedcook = (struct aim_msgcookie_t*)calloc(1, sizeof(struct aim_msgcookie_t)))) + return 1; + + memcpy(cachedcook->cookie, cookie, 8); + cachedcook->type = AIM_COOKIETYPE_OFTVOICE; + cachedcook->data = NULL; + + if (aim_cachecookie(sess, cachedcook) != 0) + printf("faim: ERROR caching message cookie\n"); + + /* XXX: implement all this */ + + /* + * Call client. + */ + userfunc = aim_callhandler(command->conn, 0x0004, 0x0007); + if (userfunc || (i = 0)) { + i = userfunc(sess, command, channel, reqclass, &userinfo); + } + } else if ((reqclass & AIM_CAPS_IMIMAGE) || (reqclass & AIM_CAPS_BUDDYICON)) { + char ip[30]; + struct aim_directim_priv *priv; + + memset(ip, 0, 30); + + if (aim_gettlv(list2, 0x0003, 1) && aim_gettlv(list2, 0x0005, 1)) { + struct aim_tlv_t *iptlv, *porttlv; + + iptlv = aim_gettlv(list2, 0x0003, 1); + porttlv = aim_gettlv(list2, 0x0005, 1); + + snprintf(ip, 30, "%d.%d.%d.%d:%d", + aimutil_get8(iptlv->value+0), + aimutil_get8(iptlv->value+1), + aimutil_get8(iptlv->value+2), + aimutil_get8(iptlv->value+3), + 4443 /*aimutil_get16(porttlv->value)*/); + } + + printf("faim: rend: directIM request from %s (%s)\n", + userinfo.sn, + ip); + + /* XXX: there are a couple of different request packets for + * different things */ + + priv = (struct aim_directim_priv *)calloc(1, sizeof(struct aim_directim_priv)); + memcpy(priv->ip, ip, sizeof(priv->ip)); + memcpy(priv->sn, userinfo.sn, sizeof(priv->sn)); + memcpy(priv->cookie, cookie, sizeof(priv->cookie)); + + /* + * Call client. + */ + userfunc = aim_callhandler(command->conn, 0x0004, 0x0007); + if (userfunc || (i = 0)) + i = userfunc(sess, + command, + channel, + reqclass, + &userinfo, priv); + + } else if (reqclass & AIM_CAPS_CHAT) { + struct aim_tlv_t *miscinfo; + struct aim_chat_roominfo roominfo; + char *msg=NULL,*encoding=NULL,*lang=NULL; + + miscinfo = aim_gettlv(list2, 0x2711, 1); + aim_chat_readroominfo(miscinfo->value, &roominfo); + + if (aim_gettlv(list2, 0x000c, 1)) + msg = aim_gettlv_str(list2, 0x000c, 1); + + if (aim_gettlv(list2, 0x000d, 1)) + encoding = aim_gettlv_str(list2, 0x000d, 1); + + if (aim_gettlv(list2, 0x000e, 1)) + lang = aim_gettlv_str(list2, 0x000e, 1); + + /* + * Call client. + */ + userfunc = aim_callhandler(command->conn, 0x0004, 0x0007); + if (userfunc || (i = 0)) + i = userfunc(sess, + command, + channel, + reqclass, + &userinfo, + &roominfo, + msg, + encoding?encoding+1:NULL, + lang?lang+1:NULL); + free(roominfo.name); + free(msg); + free(encoding); + free(lang); + } else if (reqclass & AIM_CAPS_GETFILE) { + char ip[30]; + struct aim_msgcookie_t *cachedcook; + struct aim_tlv_t *miscinfo; + + if (!(cachedcook = calloc(1, sizeof(struct aim_msgcookie_t)))) + return 0; + + memset(ip, 0, 30); + + if (!(miscinfo = aim_gettlv(list2, 0x2711, 1))) { + free(cachedcook); + return 0; + } + + if (aim_gettlv(list2, 0x0003, 1) && aim_gettlv(list2, 0x0005, 1)) { + struct aim_tlv_t *iptlv, *porttlv; + + if (!(iptlv = aim_gettlv(list2, 0x0003, 1)) || !(porttlv = aim_gettlv(list2, 0x0005, 1))) { + free(cachedcook); + return 0; + } + + snprintf(ip, 30, "%d.%d.%d.%d:%d", + aimutil_get8(iptlv->value+0), + aimutil_get8(iptlv->value+1), + aimutil_get8(iptlv->value+2), + aimutil_get8(iptlv->value+3), + aimutil_get16(porttlv->value)); + } + + printf("faim: rend: file get request from %s (%s)\n", userinfo.sn, ip); + + /* + * Call client. + */ + userfunc = aim_callhandler(command->conn, 0x0004, 0x0007); + if (userfunc || (i = 0)) + i = userfunc(sess, + command, + channel, + reqclass, + &userinfo, + ip, + cookie); + + } else if (reqclass & AIM_CAPS_SENDFILE) { +#if 0 + char ip[30]; + char *desc = NULL; + struct aim_msgcookie_t *cachedcook; + struct aim_filetransfer_priv *ft; + struct aim_tlv_t *miscinfo; + + memset(ip, 0, sizeof(ip)); + + if (!(miscinfo = aim_gettlv(list2, 0x2711, 1))) + return 0; + + if (aim_gettlv(list2, 0x0003, 1) && aim_gettlv(list2, 0x0003, 1)) { + struct aim_tlv_t *iptlv, *porttlv; + + iptlv = aim_gettlv(list2, 0x0003, 1); + porttlv = aim_gettlv(list2, 0x0005, 1); + + snprintf(ip, sizeof(ip)-1, "%d.%d.%d.%d:%d", + aimutil_get8(iptlv->value+0), + aimutil_get8(iptlv->value+1), + aimutil_get8(iptlv->value+2), + aimutil_get8(iptlv->value+3), + aimutil_get16(porttlv->value)); + } + + if (aim_gettlv(list2, 0x000c, 1)) { + desc = aim_gettlv_str(list2, 0x000c, 1); + } + + printf("faim: rend: file transfer request from %s for %s: %s (%s)\n", + userinfo.sn, + miscinfo->value+8, + desc, + ip); + + memcpy(cachedcook->cookie, cookie, 8); + + ft = malloc(sizeof(struct aim_filetransfer_priv)); + strncpy(ft->sn, userinfo.sn, sizeof(ft->sn)); + strncpy(ft->ip, ip, sizeof(ft->ip)); + strncpy(ft->fh.name, miscinfo->value+8, sizeof(ft->fh.name)); + cachedcook->type = AIM_COOKIETYPE_OFTSEND; + cachedcook->data = ft; + + if (aim_cachecookie(sess, cachedcook) != 0) + printf("faim: ERROR caching message cookie\n"); + + + aim_accepttransfer(sess, command->conn, ft->sn, cookie, AIM_CAPS_SENDFILE); + + if (desc) + free(desc); +#endif + /* + * Call client. + */ + userfunc = aim_callhandler(command->conn, 0x0004, 0x0007); + if (userfunc || (i = 0)) + i = userfunc(sess, + command, + channel, + reqclass, + &userinfo); + } else { + printf("faim: rend: unknown rendezvous 0x%04x\n", reqclass); + } + + aim_freetlvchain(&list2); } /* - * Extracting the message from the unknown cruft. - * - * This is a bit messy, and I'm not really qualified, - * even as the author, to comment on it. At least - * its not as bad as a while loop shooting into infinity. - * - * "Do you believe in magic?" - * + * Free up the TLV chain. */ - msgblock = msgblocktlv->value; - j = 0; - - wastebits = aimutil_get8(msgblock+j++); - wastebits = aimutil_get8(msgblock+j++); + aim_freetlvchain(&tlvlist); - y = aimutil_get16(msgblock+j); - j += 2; - for (z = 0; z < y; z++) - wastebits = aimutil_get8(msgblock+j++); - wastebits = aimutil_get8(msgblock+j++); - wastebits = aimutil_get8(msgblock+j++); - - /* - * Message string length, including flag words. - */ - i = aimutil_get16(msgblock+j); - j += 2; - /* - * Flag words. - * - * Its rumored that these can kick in some funky - * 16bit-wide char stuff that used to really kill - * libfaim. Hopefully the latter is no longer true. - * - * Though someone should investiagte the former. - * - */ - flag1 = aimutil_get16(msgblock+j); - j += 2; - flag2 = aimutil_get16(msgblock+j); - j += 2; + return i; +} - if (flag1 || flag2) - printf("faim: icbm: **warning: encoding flags are being used! {%04x, %04x}\n", flag1, flag2); +/* + * Possible codes: + * AIM_TRANSFER_DENY_NOTSUPPORTED -- "client does not support" + * AIM_TRANSFER_DENY_DECLINE -- "client has declined transfer" + * AIM_TRANSFER_DENY_NOTACCEPTING -- "client is not accepting transfers" + * + */ +faim_export unsigned long aim_denytransfer(struct aim_session_t *sess, + struct aim_conn_t *conn, + char *sender, + char *cookie, + unsigned short code) +{ + struct command_tx_struct *newpacket; + int curbyte, i; - /* - * Message string. - */ - i -= 4; - msg = (char *)malloc(i+1); - memcpy(msg, msgblock+j, i); - msg[i] = '\0'; + if(!(newpacket = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, 10+8+2+1+strlen(sender)+6))) + return -1; - /* - * Free up the TLV chain. - */ - aim_freetlvchain(&tlvlist); + newpacket->lock = 1; - /* - * Call client. - */ - userfunc = aim_callhandler(command->conn, 0x0004, 0x0007); - if (userfunc) - i = userfunc(sess, command, &userinfo, msg, icbmflags, flag1, flag2); - else - i = 0; + curbyte = aim_putsnac(newpacket->data, 0x0004, 0x000b, 0x0000, sess->snac_nextid); + for (i = 0; i < 8; i++) + curbyte += aimutil_put8(newpacket->data+curbyte, cookie[i]); + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002); + curbyte += aimutil_put8(newpacket->data+curbyte, strlen(sender)); + curbyte += aimutil_putstr(newpacket->data+curbyte, sender, strlen(sender)); + curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0003, code); - free(msg); + newpacket->lock = 0; + aim_tx_enqueue(sess, newpacket); - return 1; + return (sess->snac_nextid++); } /* @@ -351,46 +788,44 @@ int aim_parse_incoming_im_middle(struct aim_session_t *sess, * idea. * */ -u_long aim_seticbmparam(struct aim_session_t *sess, - struct aim_conn_t *conn) +faim_export unsigned long aim_seticbmparam(struct aim_session_t *sess, + struct aim_conn_t *conn) { - struct command_tx_struct newpacket; + struct command_tx_struct *newpacket; int curbyte; - newpacket.lock = 1; - if (conn) - newpacket.conn = conn; - else - newpacket.conn = aim_getconn_type(sess, AIM_CONN_TYPE_BOS); - newpacket.type = 0x02; - - newpacket.commandlen = 10 + 16; - newpacket.data = (u_char *) malloc (newpacket.commandlen); - - curbyte = aim_putsnac(newpacket.data, 0x0004, 0x0002, 0x0000, sess->snac_nextid); - curbyte += aimutil_put16(newpacket.data+curbyte, 0x0000); - curbyte += aimutil_put32(newpacket.data+curbyte, 0x00000003); - curbyte += aimutil_put8(newpacket.data+curbyte, 0x1f); - curbyte += aimutil_put8(newpacket.data+curbyte, 0x40); - curbyte += aimutil_put8(newpacket.data+curbyte, 0x03); - curbyte += aimutil_put8(newpacket.data+curbyte, 0xe7); - curbyte += aimutil_put8(newpacket.data+curbyte, 0x03); - curbyte += aimutil_put8(newpacket.data+curbyte, 0xe7); - curbyte += aimutil_put16(newpacket.data+curbyte, 0x0000); - curbyte += aimutil_put16(newpacket.data+curbyte, 0x0000); - - aim_tx_enqueue(sess, &newpacket); + if(!(newpacket = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, 10+16))) + return -1; + + newpacket->lock = 1; + + curbyte = aim_putsnac(newpacket->data, 0x0004, 0x0002, 0x0000, sess->snac_nextid); + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); + curbyte += aimutil_put32(newpacket->data+curbyte, 0x00000003); + curbyte += aimutil_put8(newpacket->data+curbyte, 0x1f); + curbyte += aimutil_put8(newpacket->data+curbyte, 0x40); + curbyte += aimutil_put8(newpacket->data+curbyte, 0x03); + curbyte += aimutil_put8(newpacket->data+curbyte, 0xe7); + curbyte += aimutil_put8(newpacket->data+curbyte, 0x03); + curbyte += aimutil_put8(newpacket->data+curbyte, 0xe7); + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); + curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); + + newpacket->lock = 0; + aim_tx_enqueue(sess, newpacket); return (sess->snac_nextid++); } -int aim_parse_msgerror_middle(struct aim_session_t *sess, - struct command_rx_struct *command) +faim_internal int aim_parse_msgerror_middle(struct aim_session_t *sess, + struct command_rx_struct *command) { u_long snacid = 0x000000000; struct aim_snac_t *snac = NULL; int ret = 0; rxcallback_t userfunc = NULL; + char *dest; + unsigned short reason = 0; /* * Get SNAC from packet and look it up @@ -405,22 +840,73 @@ int aim_parse_msgerror_middle(struct aim_session_t *sess, snacid = aimutil_get32(command->data+6); snac = aim_remsnac(sess, snacid); - if (!snac) - { - printf("faim: msgerr: got an ICBM-failed error on an unknown SNAC ID! (%08lx)\n", snacid); - } + if (!snac) { + printf("faim: msgerr: got an ICBM-failed error on an unknown SNAC ID! (%08lx)\n", snacid); + dest = NULL; + } else + dest = snac->data; + + reason = aimutil_get16(command->data+10); /* * Call client. */ userfunc = aim_callhandler(command->conn, 0x0004, 0x0001); if (userfunc) - ret = userfunc(sess, command, (snac)?snac->data:"(UNKNOWN)"); + ret = userfunc(sess, command, dest, reason); else ret = 0; - free(snac->data); - free(snac); + if (snac) { + free(snac->data); + free(snac); + } + + return ret; +} + + +faim_internal int aim_parse_missedcall(struct aim_session_t *sess, + struct command_rx_struct *command) +{ + int i, ret = 1; + rxcallback_t userfunc = NULL; + unsigned short channel, nummissed, reason; + struct aim_userinfo_s userinfo; + + i = 10; /* Skip SNAC header */ + + + /* + * XXX: supposedly, this entire packet can repeat as many times + * as necessary. Should implement that. + */ + + /* + * Channel ID. + */ + channel = aimutil_get16(command->data+i); + i += 2; + + /* + * Extract the standard user info block. + */ + i += aim_extractuserinfo(command->data+i, &userinfo); + + nummissed = aimutil_get16(command->data+i); + i += 2; + + reason = aimutil_get16(command->data+i); + i += 2; + /* + * Call client. + */ + userfunc = aim_callhandler(command->conn, 0x0004, 0x000a); + if (userfunc) + ret = userfunc(sess, command, channel, &userinfo, nummissed, reason); + else + ret = 0; + return ret; }