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From:	Mark Bradshaw <bradshaw AT staff DOT crosswalk DOT com>
To:	"'cygwin AT cygwin DOT com'" <cygwin AT cygwin DOT com>
Subject:	OpenSSH fork hangs when issued from cmd
Date:	Wed, 7 Aug 2002 14:14:03 -0400
MIME-Version:	1.0

Ssh hangs when you request a background fork, and you issue the command from
the command line (cmd.exe).  If you're in bash there's no problem.  I've
tracked the problem down to a select call in clientloop.c, but don't have a
good idea on how to proceed with squashing the bug.

You can duplicate (hopefully) the bug by using the command:
	ssh -f -N -L 25:localhost:25 user AT server

In bash it'll connect up, set up the port forward, then daemonize itself.
In cmd it connects, sets up the port forward, creates a child process to
hold that port forward, but then hangs on the select before the parent can
die.

The line that it hangs on is line 371 in clientloop.c (3.4p1-5):
	if (select((*maxfdp)+1, *readsetp, *writesetp, NULL, NULL) < 0) {

Any ideas how to fix that?

Mark

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