From 743edac6c84ac207d0bb4c3124b0e8fe450a38b4 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Wed, 9 Nov 2011 19:44:37 +0100 Subject: bb_daemonize_or_rexec(): add flag to double-fork; use it in start-stop-daemon Add a DAEMON_DOUBLE_FORK flag to make bb_daemonize double-fork so it isn't a session leader, and hence doesn't get a controlling tty on Linux if a tty is ever opened, similar to how libdaemon's daemon_fork or the big start-stop-daemon does it - And use it in start-stop-daemon. For details, see http://www.win.tue.nl/~aeb/linux/lk/lk-10.html#ss10.3 Signed-off-by: Peter Korsgaard Signed-off-by: Denys Vlasenko --- include/libbb.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/libbb.h') diff --git a/include/libbb.h b/include/libbb.h index 53224fa35..09e8d28e7 100644 --- a/include/libbb.h +++ b/include/libbb.h @@ -966,6 +966,7 @@ enum { DAEMON_DEVNULL_STDIO = 2, DAEMON_CLOSE_EXTRA_FDS = 4, DAEMON_ONLY_SANITIZE = 8, /* internal use */ + DAEMON_DOUBLE_FORK = 16, /* double fork to avoid controlling tty */ }; #if BB_MMU enum { re_execed = 0 }; -- cgit v1.2.3