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authorPeter Korsgaard2011-11-09 19:44:37 +0100
committerDenys Vlasenko2011-11-09 19:44:37 +0100
commit743edac6c84ac207d0bb4c3124b0e8fe450a38b4 (patch)
treed74290b238665a3369e191dd85e7a4b38f74aadb /include
parent7e21f0491cf3e72835cd9b515734caec56d41e70 (diff)
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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 <jacmet@sunsite.dk> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'include')
-rw-r--r--include/libbb.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/libbb.h b/include/libbb.h
index 53224fa..09e8d28 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 };