task: Reset forked process signal mask

The forked process inherits connmand's signal mask and thus has TERM and
INT blocked. As a consequence it can not be killed properly if the signal
mask is not reset.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/task.c b/src/task.c
index b5b9ef74..2fd2567a 100644
--- a/src/task.c
+++ b/src/task.c
@@ -27,6 +27,7 @@
 #include <unistd.h>
 #include <stdarg.h>
 #include <sys/wait.h>
+#include <signal.h>
 
 #include <glib.h>
 
@@ -268,9 +269,14 @@ static void task_died(GPid pid, gint status, gpointer user_data)
 
 static void task_setup(gpointer user_data)
 {
+	sigset_t mask;
 	struct connman_task *task = user_data;
 
 	DBG("task %p", task);
+
+	sigemptyset(&mask);
+	if (sigprocmask(SIG_SETMASK, &mask, NULL) < 0)
+		connman_error("Failed to clean signal mask");
 }
 
 /**