sig: add signal handling functions

Add an extra file for signal handling functions.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>

1 files changed, 32 insertions, 0 deletions

diff --git a/sig.c b/sig.c
new file mode 100644
index 0000000..2b5ab5e
--- /dev/null
+++ b/sig.c
@@ -0,0 +1,32 @@
+#include <stdio.h>
+#include <signal.h>
+
+#include "sig.h"
+
+void register_signal(int signal, void (*handler)(int))
+{
+	sigset_t block_mask;
+	struct sigaction saction;
+
+	sigfillset(&block_mask);
+
+	saction.sa_handler = handler;
+	saction.sa_mask = block_mask;
+	saction.sa_flags = SA_RESTART;
+
+	sigaction(signal, &saction, NULL);
+}
+
+void register_signal_f(int signal, void (*handler)(int), int flags)
+{
+	sigset_t block_mask;
+	struct sigaction saction;
+
+	sigfillset(&block_mask);
+
+	saction.sa_handler = handler;
+	saction.sa_mask = block_mask;
+	saction.sa_flags = flags;
+
+	sigaction(signal, &saction, NULL);
+}