Keepalive pings in icmpd

1 files changed, 7 insertions, 0 deletions

diff --git a/util.c b/util.c
index 0f3f6bc..9c7e1a3 100644
--- a/util.c
+++ b/util.c
@@ -4,6 +4,7 @@
 #include <unistd.h>
 #include <errno.h>
 #include <assert.h>
+#include <sys/time.h>
 #include "util.h"
 
 
@@ -69,3 +70,9 @@ ssize_t writeall(int fd, const void *data, size_t length) {
 int maxi(int a, int b) {
 	return a > b ? a : b;
 }
+
+int64_t gettimestamp(void) {
+	struct timeval tv;
+	gettimeofday(&tv, NULL);
+	return tv.tv_sec * 1000000LL + tv.tv_usec;
+}