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After detailed analysis of the Yahoo 0.8-1.4
source, I found the core dump problem can be resolved by altering line
49 of sessions.c inside yahoo_session_end() from:
ghash_remove(s->yti->s,
s->user);
to:
ghash_remove(s->yti->s, jid_full(s->user));
Without the call to
jid_full(...), ghash_remove() fails to remove the closed session from the hash
table. My guess is that memory inside the session structure is released, so
when the user logsback in and the ghash_get() finds the old session, it starts
accessing garbage-collected data and suffers an untimely
termination.
One suggestion is to alter
ghash_remove() and xhash_zap() to return meaningful values - and then check said
return values in the client code.
-Kevin
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