commit 66b793822d475bb40aa370c9ef7fc0499b22a5e2

Author: Jan Synacek <jsynacek@redhat.com>

Date:   Thu Feb 23 12:59:46 2017 +0100

    arping: exit if network disappears while running

    Originally reported at https://bugzilla.redhat.com/show_bug.cgi?id=1387542

diff --git a/arping.c b/arping.c

index 1a3f40b..dce8f7b 100644

--- a/arping.c

+++ b/arping.c

@@ -1227,6 +1227,8 @@ main(int argc, char **argv)

 		if ((cc = recvfrom(s, packet, sizeof(packet), 0,

 				   (struct sockaddr *)&from, &alen)) < 0) {

 			perror("arping: recvfrom");

+			if (errno == ENETDOWN)

+				exit(2);

 			continue;

 		}