faim_internal fu8_t *aimbs_getraw(aim_bstream_t *bs, int len) { fu8_t *ob; if (!(ob = malloc(len))) return NULL; if (aimbs_getrawbuf(bs, ob, len) < len) { free(ob); return NULL; } return ob; }
guint8 *aimbs_getraw(aim_bstream_t *bs, int len) { guint8 *ob; if (!(ob = g_malloc(len))) return NULL; if (aimbs_getrawbuf(bs, ob, len) < len) { g_free(ob); return NULL; } return ob; }
faim_internal char *aimbs_getstr(aim_bstream_t *bs, int len) { char *ob; if (!(ob = malloc(len+1))) return NULL; if (aimbs_getrawbuf(bs, ob, len) < len) { free(ob); return NULL; } ob[len] = '\0'; return ob; }
char *aimbs_getstr(aim_bstream_t *bs, int len) { guint8 *ob; if (!(ob = g_malloc(len+1))) return NULL; if (aimbs_getrawbuf(bs, ob, len) < len) { g_free(ob); return NULL; } ob[len] = '\0'; return (char *)ob; }
/* * Read a rendezvous header from conn into fr, and return the number of bytes in the payload. */ static int aim_get_command_rendezvous(aim_session_t *sess, aim_conn_t *conn, aim_frame_t *fr) { fu8_t rendhdr_raw[8]; aim_bstream_t rendhdr; aim_bstream_init(&rendhdr, rendhdr_raw, sizeof(rendhdr_raw)); if (aim_bstream_recv(&rendhdr, conn->fd, 8) < 8) { aim_conn_close(conn); return -1; } aim_bstream_rewind(&rendhdr); fr->hdrtype = AIM_FRAMETYPE_OFT; /* a misnomer--rendezvous */ aimbs_getrawbuf(&rendhdr, fr->hdr.rend.magic, 4); fr->hdr.rend.hdrlen = aimbs_get16(&rendhdr) - 8; fr->hdr.rend.type = aimbs_get16(&rendhdr); return fr->hdr.rend.hdrlen; }
/* * AIM is fairly regular about providing user info. This is a generic * routine to extract it in its standard form. */ faim_internal int aim_extractuserinfo(aim_session_t *sess, aim_bstream_t *bs, aim_userinfo_t *outinfo) { int curtlv, tlvcnt; fu8_t snlen; if (!bs || !outinfo) return -EINVAL; /* Clear out old data first */ memset(outinfo, 0x00, sizeof(aim_userinfo_t)); /* * Screen name. Stored as an unterminated string prepended with a * byte containing its length. */ snlen = aimbs_get8(bs); aimbs_getrawbuf(bs, outinfo->sn, snlen); /* * Warning Level. Stored as an unsigned short. */ outinfo->warnlevel = aimbs_get16(bs); /* * TLV Count. Unsigned short representing the number of * Type-Length-Value triples that follow. */ tlvcnt = aimbs_get16(bs); /* * Parse out the Type-Length-Value triples as they're found. */ for (curtlv = 0; curtlv < tlvcnt; curtlv++) { int endpos; fu16_t type, length; type = aimbs_get16(bs); length = aimbs_get16(bs); endpos = aim_bstream_curpos(bs) + length; if (type == 0x0001) { /* * Type = 0x0001: User flags * * Specified as any of the following ORed together: * 0x0001 Trial (user less than 60days) * 0x0002 Unknown bit 2 * 0x0004 AOL Main Service user * 0x0008 Unknown bit 4 * 0x0010 Free (AIM) user * 0x0020 Away * 0x0400 ActiveBuddy * */ outinfo->flags = aimbs_get16(bs); outinfo->present |= AIM_USERINFO_PRESENT_FLAGS; } else if (type == 0x0002) { /* * Type = 0x0002: Account creation time. * * The time/date that the user originally registered for * the service, stored in time_t format. * * I'm not sure how this differs from type 5 ("member * since"). * * Note: This is the field formerly known as "member * since". All these years and I finally found out * that I got the name wrong. */ outinfo->createtime = aimbs_get32(bs); outinfo->present |= AIM_USERINFO_PRESENT_CREATETIME; } else if (type == 0x0003) { /* * Type = 0x0003: On-Since date. * * The time/date that the user started their current * session, stored in time_t format. */ outinfo->onlinesince = aimbs_get32(bs); outinfo->present |= AIM_USERINFO_PRESENT_ONLINESINCE; } else if (type == 0x0004) { /* * Type = 0x0004: Idle time. * * Number of seconds since the user actively used the * service. * * Note that the client tells the server when to start * counting idle times, so this may or may not be * related to reality. */ outinfo->idletime = aimbs_get16(bs); outinfo->present |= AIM_USERINFO_PRESENT_IDLE; } else if (type == 0x0005) { /* * Type = 0x0005: Member since date. * * The time/date that the user originally registered for * the service, stored in time_t format. * * This is sometimes sent instead of type 2 ("account * creation time"), particularly in the self-info. */ outinfo->membersince = aimbs_get32(bs); outinfo->present |= AIM_USERINFO_PRESENT_MEMBERSINCE; } else if (type == 0x0006) { /* * Type = 0x0006: ICQ Online Status * * ICQ's Away/DND/etc "enriched" status. Some decoding * of values done by Scott <*****@*****.**> */ aimbs_get16(bs); outinfo->icqinfo.status = aimbs_get16(bs); outinfo->present |= AIM_USERINFO_PRESENT_ICQEXTSTATUS; } else if (type == 0x000a) { /* * Type = 0x000a * * ICQ User IP Address. * Ahh, the joy of ICQ security. */ outinfo->icqinfo.ipaddr = aimbs_get32(bs); outinfo->present |= AIM_USERINFO_PRESENT_ICQIPADDR; } else if (type == 0x000c) { /* * Type = 0x000c * * random crap containing the IP address, * apparently a port number, and some Other Stuff. * */ aimbs_getrawbuf(bs, outinfo->icqinfo.crap, 0x25); outinfo->present |= AIM_USERINFO_PRESENT_ICQDATA; } else if (type == 0x000d) { /* * Type = 0x000d * * Capability information. * */ outinfo->capabilities = aim_getcap(sess, bs, length); outinfo->present |= AIM_USERINFO_PRESENT_CAPABILITIES; } else if (type == 0x000e) { /* * Type = 0x000e * * Unknown. Always of zero length, and always only * on AOL users. * * Ignore. * */ } else if ((type == 0x000f) || (type == 0x0010)) { /* * Type = 0x000f: Session Length. (AIM) * Type = 0x0010: Session Length. (AOL) * * The duration, in seconds, of the user's current * session. * * Which TLV type this comes in depends on the * service the user is using (AIM or AOL). * */ outinfo->sessionlen = aimbs_get32(bs); outinfo->present |= AIM_USERINFO_PRESENT_SESSIONLEN; } else if (type == 0x001d) { /* * Type 29: Unknown. * * Currently very rare. Always 18 bytes of mostly zero. */ } else if (type == 0x001e) { /* * Type 30: Unknown. * * Always four bytes, but it doesn't look like an int. */ } else { /* * Reaching here indicates that either AOL has * added yet another TLV for us to deal with, * or the parsing has gone Terribly Wrong. * * Either way, inform the owner and attempt * recovery. * */ faimdprintf(sess, 0, "userinfo: **warning: unexpected TLV:\n"); faimdprintf(sess, 0, "userinfo: sn =%s\n", outinfo->sn); dumptlv(sess, type, bs, length); } /* Save ourselves. */ aim_bstream_setpos(bs, endpos); } return 0; }
/* * AIM is fairly regular about providing user info. This is a generic * routine to extract it in its standard form. */ faim_internal int aim_extractuserinfo(aim_session_t *sess, aim_bstream_t *bs, aim_userinfo_t *outinfo) { int curtlv, tlvcnt; fu8_t snlen; if (!bs || !outinfo) return -EINVAL; /* Clear out old data first */ memset(outinfo, 0x00, sizeof(aim_userinfo_t)); /* * Screen name. Stored as an unterminated string prepended with a * byte containing its length. */ snlen = aimbs_get8(bs); aimbs_getrawbuf(bs, outinfo->sn, snlen); /* * Warning Level. Stored as an unsigned short. */ outinfo->warnlevel = aimbs_get16(bs); /* * TLV Count. Unsigned short representing the number of * Type-Length-Value triples that follow. */ tlvcnt = aimbs_get16(bs); /* * Parse out the Type-Length-Value triples as they're found. */ for (curtlv = 0; curtlv < tlvcnt; curtlv++) { int endpos; fu16_t type, length; type = aimbs_get16(bs); length = aimbs_get16(bs); endpos = aim_bstream_curpos(bs) + length; if (type == 0x0001) { /* * Type = 0x0001: User flags * * Specified as any of the following ORed together: * 0x0001 Trial (user less than 60days) * 0x0002 Unknown bit 2 * 0x0004 AOL Main Service user * 0x0008 Unknown bit 4 * 0x0010 Free (AIM) user * 0x0020 Away * 0x0400 ActiveBuddy * */ outinfo->flags = aimbs_get16(bs); } else if (type == 0x0002) { /* * Type = 0x0002: Member-Since date. * * The time/date that the user originally registered for * the service, stored in time_t format. */ outinfo->membersince = aimbs_get32(bs); } else if (type == 0x0003) { /* * Type = 0x0003: On-Since date. * * The time/date that the user started their current * session, stored in time_t format. */ outinfo->onlinesince = aimbs_get32(bs); } else if (type == 0x0004) { /* * Type = 0x0004: Idle time. * * Number of seconds since the user actively used the * service. * * Note that the client tells the server when to start * counting idle times, so this may or may not be * related to reality. */ outinfo->idletime = aimbs_get16(bs); } else if (type == 0x0006) { /* * Type = 0x0006: ICQ Online Status * * ICQ's Away/DND/etc "enriched" status. Some decoding * of values done by Scott <*****@*****.**> */ aimbs_get16(bs); outinfo->icqinfo.status = aimbs_get16(bs); } else if (type == 0x000a) { /* * Type = 0x000a * * ICQ User IP Address. * Ahh, the joy of ICQ security. */ outinfo->icqinfo.ipaddr = aimbs_get32(bs); } else if (type == 0x000c) { /* * Type = 0x000c * * random crap containing the IP address, * apparently a port number, and some Other Stuff. * */ aimbs_getrawbuf(bs, outinfo->icqinfo.crap, 0x25); } else if (type == 0x000d) { /* * Type = 0x000d * * Capability information. * */ outinfo->capabilities = aim_getcap(sess, bs, length); outinfo->capspresent = 1; } else if (type == 0x000e) { /* * Type = 0x000e * * Unknown. Always of zero length, and always only * on AOL users. * * Ignore. * */ } else if ((type == 0x000f) || (type == 0x0010)) { /* * Type = 0x000f: Session Length. (AIM) * Type = 0x0010: Session Length. (AOL) * * The duration, in seconds, of the user's current * session. * * Which TLV type this comes in depends on the * service the user is using (AIM or AOL). * */ outinfo->sessionlen = aimbs_get32(bs); } else { /* * Reaching here indicates that either AOL has * added yet another TLV for us to deal with, * or the parsing has gone Terribly Wrong. * * Either way, inform the owner and attempt * recovery. * */ faimdprintf(sess, 0, "userinfo: **warning: unexpected TLV:\n"); faimdprintf(sess, 0, "userinfo: sn =%s\n", outinfo->sn); faimdprintf(sess, 0, "userinfo: type =0x%04x\n",type); faimdprintf(sess, 0, "userinfo: length=0x%04x\n", length); } /* Save ourselves. */ aim_bstream_setpos(bs, endpos); } return 0; }