[Bug 3931] Busybox issue: utmp not getting updated on exit for telnet command

Mon Aug 17 22:59:00 UTC 2015

https://bugs.busybox.net/show_bug.cgi?id=3931

--- Comment #1 from John Ata <john.ata at baesystems.com> 2015-08-17 22:59:00 UTC ---
Is telnet using libutil's logout() routine to clear the utmp entries?  There is
a limitation with the utmp routines (getutline, pututline) where the static
buffer returned by getutline cannot be used as input into pututline since
pututline reads the existing utmp entry into the static buffer before writing
it.  If openssh is compiled to use libutil's logout, it has the same problem. 
See bug #8306

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