>Number:         8797
>Category:       lib
>Synopsis:       login gets stuck if sent control-characters
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    lib-bug-people (Library Bug People)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Nov 14 09:00:01 1999
>Last-Modified:
>Originator:     Antti Kantee
>Organization:
>Release:        NetBSD-current around Nov 6th
>Environment:
NetBSD/i386 1.4M, wscons

>Description:
	
	Sending control characters to a getty gets login wedged quite bad.
	Even killing login is of no use and the tty is useless until the
	next reboot.

	I am not sure weather this is a bin-bug or lib-bug or whatever-bug,
	but I'm taking a lucky guess.
>How-To-Repeat:

	Go to ttyE?, press ctrl-uparrow a few times (four or five should
	be enough) and see what there is to be seen (absolutely nothing!)
>Fix:

	Beats me. I tried using a little gdb on login, but the problem got
	really weird. Login seemed to stop at row 169 which is:

169             (void)signal(SIGALRM, timedout);

	After that gdb was pretty much useless also and stopped responding
	to anything short of SIGSTOP or SIGKILL.

	Once I managed to get to row 173 by stepi:n row 169.
>Audit-Trail:
>Unformatted: