[PATCH 04/17] daemons: fix setsid(2) in console-run

[Justus Winter <4winter@informatik.uni-hamburg.de>]

Only run setsid(2) if the process is not already the group leader.

* daemons/console-run.c (open_console): Fix setsid(2).
---
 daemons/console-run.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/daemons/console-run.c b/daemons/console-run.c
index fb879e5..e1bfe64 100644
--- a/daemons/console-run.c
+++ b/daemons/console-run.c
@@ -217,8 +217,9 @@ open_console (char **namep)
   dup2 (0, 1);
   dup2 (0, 2);
 
-  if (setsid () == -1)
-    error (0, errno, "setsid");
+  if (getsid (0) != getpid ())
+    if (setsid () == -1)
+      error (0, errno, "setsid");
 
   /* Set the console to our pgrp.  */
   tcsetpgrp (0, getpid ());
-- 
1.7.10.4