getty,login: tighten up handling of ctty, pgrp, and tty attr restoring on timeout

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-10-22 06:27:41 +02:00
parent ef5a2d757a
commit 7449e18190
4 changed files with 171 additions and 105 deletions
--- a/docs/ctty.htm
+++ b/docs/ctty.htm
@ -279,6 +279,7 @@ and inspect it by
 Again, if TOSTOP is set but the background process ignores or blocks
 the SIGTTOU signal, or if its process group is orphaned (see below),
 then the write() returns an EIO error, and no signal is sent.
+[vda: correction. SUS says that if SIGTTOU is blocked/ignored, write succeeds. ]
 <p>
 </p><h3>Orphaned process groups</h3>