From 8a21287f61e82c9000f056c5e1c42a7ea6e29c9f Mon Sep 17 00:00:00 2001
From: garnier-quentin <qgarnier@centreon.com>
Date: Mon, 12 May 2014 23:21:01 +0200
Subject: [PATCH] Fix #5537

---
 centreon/plugins/misc.pm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/centreon/plugins/misc.pm b/centreon/plugins/misc.pm
index b19ff18df..0688016c1 100644
--- a/centreon/plugins/misc.pm
+++ b/centreon/plugins/misc.pm
@@ -183,6 +183,8 @@ sub backtick {
         $sig_do = 'DEFAULT';
     }
     local $SIG{CHLD} = $sig_do;
+    $SIG{TTOU} = 'IGNORE';
+    $| = 1;
 
     if (!defined($pid = open( KID, "-|" ))) {
         return (-1001, "Cant fork: $!", -1);
@@ -220,6 +222,7 @@ sub backtick {
         # child
         # set the child process to be a group leader, so that
         # kill -9 will kill it and all its descendents
+        # We have ignore SIGTTOU to let write background processes
         setpgrp( 0, 0 );
 
         if ($arg{redirect_stderr} == 1) {