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;
}
