X-Git-Url: https://git.sesse.net/?p=cubemap;a=blobdiff_plain;f=udpinput.cpp;h=4b421a3e4fe90c91732a7a24c53adc476175fd7d;hp=a2915e8333dff36c1b3cc1fa2efcb1cfbf1d27cf;hb=30e1ceef303dc02c0494f71774d0848485da4c8e;hpb=7ec54788f88dde7b083ba6cfd30732b32295b54a

diff --git a/udpinput.cpp b/udpinput.cpp
index a2915e8..4b421a3 100644
--- a/udpinput.cpp
+++ b/udpinput.cpp
@@ -210,7 +210,7 @@ void UDPInput::do_work()
 			ret = recv(sock, packet_buf, sizeof(packet_buf), 0);
 		} while (ret == -1 && errno == EINTR);
 
-		if (ret <= 0) {
+		if (ret < 0) {  // Note that zero-byte packets are legal.
 			log_perror("recv");
 			close_socket();
 			continue;