* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
- * $Id: m_burst.c,v 1.40 2005/09/27 02:41:57 entrope Exp $
+ * $Id: m_burst.c,v 1.40.2.2 2006/01/12 03:02:50 entrope Exp $
*/
/*
timestamp = atoi(parv[2]);
+ if (chptr->creationtime) /* 0 for new (empty) channels,
+ i.e. when this server just restarted. */
+ {
+ if (parc == 3) /* Zannel BURST? */
+ {
+ /* An empty channel without +A set, will cause a BURST message
+ with exactly 3 parameters (because all modes have been reset).
+ If the timestamp on such channels is only a few seconds older
+ from our own, then we ignore this burst: we do not deop our
+ own side.
+ Likewise, we expect the other (empty) side to copy our timestamp
+ from our own BURST message, even though it is slightly larger.
+
+ The reason for this is to allow people to join an empty
+ non-A channel (a zannel) during a net.split, and not be
+ deopped when the net reconnects (with another zannel). When
+ someone joins a split zannel, their side increments the TS by one.
+ If they cycle a few times then we still don't have a reason to
+ deop them. Theoretically I see no reason not to accept ANY timestamp,
+ but to be sure, we only accept timestamps that are just a few
+ seconds off (one second for each time they cycled the channel). */
+
+ /* Don't even deop users who cycled four times during the net.break. */
+ if (timestamp < chptr->creationtime &&
+ chptr->creationtime <= timestamp + 4 &&
+ chptr->users != 0) /* Only do this when WE have users, so that
+ if we do this the BURST that we sent has
+ parc > 3 and the other side will use the
+ test below: */
+ timestamp = chptr->creationtime; /* Do not deop our side. */
+ }
+ else if (chptr->creationtime < timestamp &&
+ timestamp <= chptr->creationtime + 4 &&
+ chptr->users == 0)
+ {
+ /* If one side of the net.junction does the above
+ timestamp = chptr->creationtime, then the other
+ side must do this: */
+ chptr->creationtime = timestamp; /* Use the same TS on both sides. */
+ }
+ /* In more complex cases, we might still end up with a
+ creationtime desync of a few seconds, but that should
+ be synced automatically rather quickly (every JOIN
+ caries a timestamp and will sync it; modes by users do
+ not carry timestamps and are accepted regardless).
+ Only when nobody joins the channel on the side with
+ the oldest timestamp before a new net.break occurs
+ precisely inbetween the desync, an unexpected bounce
+ might happen on reconnect. */
+ }
+
if (!chptr->creationtime || chptr->creationtime > timestamp) {
/*
* Kick local members if channel is +i or +k and our TS was larger
current_mode = (current_mode & ~CHFL_DELAYED) | CHFL_VOICE;
oplevel = -1; /* subsequent digits are an absolute op-level value. */
}
- else if (isdigit(*ptr)) {
+ else if (IsDigit(*ptr)) {
int level_increment = 0;
if (oplevel == -1) { /* op-level is absolute value? */
if (current_mode_needs_reset) {
current_mode = (current_mode & ~(CHFL_DEOPPED | CHFL_DELAYED)) | CHFL_CHANOP;
do {
level_increment = 10 * level_increment + *ptr++ - '0';
- } while(isdigit(*ptr));
+ } while (IsDigit(*ptr));
oplevel += level_increment;
}
else /* I don't recognize that flag */