--- netkit-ftp-0.17-orig/ftp/ftp.c	2007-08-06 23:32:49.000000000 +0200

+++ netkit-ftp-0.17/ftp/ftp.c	2007-08-06 23:31:06.000000000 +0200

@@ -483,8 +483,10 @@ getreply(int expecteof)

 					return (0);

 				}

 				lostpeer(0);

-				fclose(cout);

-				cout = NULL;

+				if (cout) {

+					fclose(cout);

+					cout = NULL;

+				}

 				if (verbose) {

 					printf("421 Service not available, remote server has closed connection\n");

 					(void) fflush(stdout);