--- nc/netcat.c	2011-03-08 11:11:50.298563001 +0100
+++ nc/netcat.c.new	2011-03-08 11:19:52.940562684 +0100
@@ -683,6 +683,9 @@
 			pfd[0].fd = -1;
 			pfd[0].events = 0;
 		}
+		else if (pfd[0].revents & POLLERR)
+			if (write(nfd, "", 1) == -1)
+				warn("Write error");
 
 		if (!dflag) {
 			if (pfd[1].revents & POLLIN) {