From: Tycho Andersen <tycho@tycho.ws>
Date: Mon, 5 Feb 2018 14:19:25 +0000 (+0000)
Subject: lxc.init: ignore SIGHUP
X-Git-Tag: lxc-2.0.10~361
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=372ecb703f7351c8d9e7a9c41e62fb5915d0ca2c;p=thirdparty%2Flxc.git

lxc.init: ignore SIGHUP

see comment for details.

Signed-off-by: Tycho Andersen <tycho@tycho.ws>
---

diff --git a/src/lxc/lxc_init.c b/src/lxc/lxc_init.c
index c20dfbb3f..7cd990bdd 100644
--- a/src/lxc/lxc_init.c
+++ b/src/lxc/lxc_init.c
@@ -379,6 +379,17 @@ int main(int argc, char *argv[])
 
 		switch (was_interrupted) {
 		case 0:
+		/* Some applications send SIGHUP in order to get init to reload
+		 * its configuration. We don't want to forward this onto the
+		 * application itself, because it probably isn't expecting this
+		 * signal since it was expecting init to do something with it.
+		 *
+		 * Instead, let's explicitly ignore it here. The actual
+		 * terminal case is handled in the monitor's handler, which
+		 * sends this task a SIGTERM in the case of a SIGHUP, which is
+		 * what we want.
+		 */
+		case SIGHUP:
 			break;
 		case SIGPWR:
 		case SIGTERM: