From: Douglas Graham (dgraham@bmers30.bnr.ca)
Date: 06/27/92 

From: dgraham@bmers30.bnr.ca (Douglas Graham)
Subject: 0.96b PL2 Pty's broken?
Date: 27 Jun 1992 20:27:38 GMT

Was there a reason why the following patch was applied to the read_chan
code in 0.96b PL2? Now, a "cat /dev/ttyp0" will return immediately after
having read 0 bytes, instead of hanging waiting for something to be
written to the master side. Among other things, this breaks "script".