$NetBSD: patch-ab,v 1.3 2006/07/21 16:19:58 minskim Exp $

--- bing.c.orig	1995-07-20 23:45:32.000000000 +0000
+++ bing.c
@@ -155,7 +155,7 @@ static char rcsid[] = "bing.c,v 1.16 199
 #include <sys/socket.h>
 #include <sys/file.h>
 #include <sys/time.h>
-#include <sys/signal.h>
+#include <signal.h>
 
 #include <netinet/in_systm.h>
 #include <netinet/in.h>
@@ -169,6 +169,7 @@ static char rcsid[] = "bing.c,v 1.16 199
 #include <stdio.h>
 #include <ctype.h>
 #include <errno.h>
+#include <stdlib.h>
 #include <string.h>
 #include <limits.h>
 
@@ -1221,7 +1222,7 @@ int main(argc, argv)
 	int argc;
 	char **argv;
 {
-	extern int errno, optind;
+	extern int optind;
 	extern char *optarg;
 	struct protoent *proto;
 	struct in_addr ifaddr;
@@ -1230,7 +1231,7 @@ int main(argc, argv)
 	int i;
 	int ch, hold, recv_packlen, preload;
 	u_char *datap, *recv_packet;
-	char *target1, *target2, *malloc();
+	char *target1, *target2;
 	u_char ttl, loop;
 #ifdef IP_OPTIONS
 	char rspace[3 + 4 * NROUTES + 1];	/* record route space */