commit 094c8ba814f388dcefee403c4d369005a8d9810f
Author: Dominik Schmidt <domischm...@swissonline.ch>
AuthorDate: Mon Jul 2 02:08:08 2018 +0000
Commit: Laslo Hunhold <d...@frign.de>
CommitDate: Mon Jul 2 07:14:00 2018 +0200
Open a new process group before setting up signal handler
When cleaning up after a caught signal, quark forwards the signal to all
processes in the process group with `kill(0, ...)`. If we do not open up a
new
process group in the parent process, quarks parent will be sent a SIG...
too,
resulting it to shut down (especially considering that the parent process
might
run as root).
As a result, if we set up the service with djb's excellent daemontools,
`svc -d quark` will terminate the svscan-process and tear all other services
down with it.
See also <https://cr.yp.to/daemontools/faq/create.html#pgrphack>.
diff --git a/main.c b/main.c
index 7223b24..e9d0a06 100644
--- a/main.c
+++ b/main.c
@@ -240,6 +240,9 @@ main(int argc, char *argv[])
"Entry not found");
}
+ /* Open a new process group */
+ setpgid(0,0);
+
handlesignals(sigcleanup);
/* bind socket */
