Fix emacsclient terminal corruption when in background.

* emacsclient.c (handle_sigcont): Check for tcgetpgrp failure.
Cancel the continue only if tty.  Send SIGTTIN to the process
group, not SIGSTOP to self, as this is what the glibc manual
recommends.
(main): If tty, and if started in the background, send SIGTTIN
to the process group.

Fixes: debbugs:16892

1 files changed, 10 insertions, 0 deletions

diff --git a/lib-src/ChangeLog b/lib-src/ChangeLog
index 8cf73cea5d6..0c3d7d723c5 100644
--- a/lib-src/ChangeLog
+++ b/lib-src/ChangeLog
@@ -1,3 +1,13 @@
+2014-03-09  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Fix emacsclient terminal corruption when in background (Bug#16892).
+        * emacsclient.c (handle_sigcont): Check for tcgetpgrp failure.
+        Cancel the continue only if tty.  Send SIGTTIN to the process
+        group, not SIGSTOP to self, as this is what the glibc manual
+        recommends.
+        (main): If tty, and if started in the background, send SIGTTIN
+        to the process group.
+
 2014-02-25  Andreas Amann  <a.amann@ucc.ie>  (tiny change)
 
         Fix emacsclient's handling of SIGCONT (Bug#16883).