[Bug 950] terminal settings not restored after Ctrl+C during password prompt in scp/sftp

[bugzilla-daemon at mindrot.org]

http://bugzilla.mindrot.org/show_bug.cgi?id=950


peak at argo.troja.mff.cuni.cz changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |




------- Additional Comments From peak at argo.troja.mff.cuni.cz  2005-05-06 01:06 -------
Damn it! There is another nasty subtle race condition there: kill() from the
parent (e.g. scp) can interrupt tcsetattr() in the child (ssh), make it fail
with EINTR (both POSIX and OpenBSD documentation says tcsetattr() can be
interrupted by a signal) and leave the tty in a broken state. Observed on
3.8.1p1 on Linux 2.4 on a SMP machine (well, it was not a true SMP box, it was a
single Xeon in HT mode). As far as I can tell, every version using OpenBSD
readpassphrase() up to the current snapshot is affected.



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