Fix ctrl+alt+del support

The previous patch did not catch SIGINT, which is used by the
kernel to indicate to the init process that the system should
reboot.

Signed-off-by: Michel Stam <m.stam@fugro.nl>

3 files changed, 4 insertions, 3 deletions

diff --git a/procd.c b/procd.c
index f5640c3..8dcd924 100644
--- a/procd.c
+++ b/procd.c
@@ -72,8 +72,5 @@ int main(int argc, char **argv)
 	uloop_run();
 	uloop_done();
 
-	if (getpid() == 1)
-		procd_shutdown(RB_AUTOBOOT);
-
 	return 0;
 }
diff --git a/signal.c b/signal.c
index 12eedc8..16824f7 100644
--- a/signal.c
+++ b/signal.c
@@ -36,6 +36,7 @@ static void signal_shutdown(int signal, siginfo_t *siginfo, void *data)
 	char *msg = NULL;
 
 	switch(signal) {
+	case SIGINT:
 	case SIGTERM:
 		event = RB_AUTOBOOT;
 		msg = "reboot";
@@ -84,6 +85,7 @@ void procd_signal(void)
 	if (getpid() != 1)
 		return;
 	sigaction(SIGTERM, &sa_shutdown, NULL);
+	sigaction(SIGINT, &sa_shutdown, NULL);
 	sigaction(SIGUSR1, &sa_shutdown, NULL);
 	sigaction(SIGUSR2, &sa_shutdown, NULL);
 	sigaction(SIGSEGV, &sa_crash, NULL);
diff --git a/state.c b/state.c
index 7f0ec50..0896e1a 100644
--- a/state.c
+++ b/state.c
@@ -131,6 +131,8 @@ static void state_enter(void)
 		break;
 
 	case STATE_HALT:
+		// To prevent killed processes from interrupting the sleep
+		signal(SIGCHLD, SIG_IGN);
 		LOG("- SIGTERM processes -\n");
 		kill(-1, SIGTERM);
 		sync();