Add very, very quick and dirty hello world test

src/tests/dhcptest.c

 	return test_aoeboot ( netdev, aoename, drivenum );
 }
 
-static int test_dhcp_iscsi_boot ( struct net_device *netdev __unused,
-				  char *iscsiname ) {
+static int test_dhcp_iscsi_boot ( char *iscsiname ) {
 	char *initiator_iqn = "iqn.1900-01.localdomain.localhost:initiator";
 	char *target_iqn;
 	union {
 	return test_iscsiboot ( initiator_iqn, &target.st, target_iqn );
 }
 
+static int test_dhcp_hello ( char *helloname ) {
+	char *message;
+	union {
+		struct sockaddr_in sin;
+		struct sockaddr_tcpip st;
+	} target;
+
+	memset ( &target, 0, sizeof ( target ) );
+	target.sin.sin_family = AF_INET;
+	target.sin.sin_port = htons ( 80 );
+	message = strchr ( helloname, ':' );
+	*message++ = '\0';
+	if ( ! message ) {
+		printf ( "Invalid hello path\n" );
+		return -EINVAL;
+	}
+	inet_aton ( helloname, &target.sin.sin_addr );	
+
+	test_hello ( &target.st, message );
+	return 0;
+}
+
 static int test_dhcp_boot ( struct net_device *netdev, char *filename ) {
 	if ( strncmp ( filename, "aoe:", 4 ) == 0 ) {
 		return test_dhcp_aoe_boot ( netdev, &filename[4] );
 	} else if ( strncmp ( filename, "iscsi:", 6 ) == 0 ) {
-		return test_dhcp_iscsi_boot ( netdev, &filename[6] );
+		return test_dhcp_iscsi_boot ( &filename[6] );
+	} else if ( strncmp ( filename, "hello:", 6 ) == 0 ) {
+		return test_dhcp_hello ( &filename[6] );
 	} else {
 		printf ( "Don't know how to boot %s\n", filename );
 		return -EPROTONOSUPPORT;

src/tests/hellotest.c

 	}
 }
 
-void test_hello ( struct sockaddr_in *server, const char *message ) {
+void test_hello ( struct sockaddr_tcpip *server, const char *message ) {
+	/* Quick and dirty hack */
+	struct sockaddr_in *sin = ( struct sockaddr_in * ) server;
 	struct hello_request hello;
 	int rc;
 
 	printf ( "Saying \"%s\" to %s:%d\n", message,
-		 inet_ntoa ( server->sin_addr ), ntohs ( server->sin_port ) );
+		 inet_ntoa ( sin->sin_addr ), ntohs ( sin->sin_port ) );
 	
 	memset ( &hello, 0, sizeof ( hello ) );
-	hello.tcp.sin = *server;
+	memcpy ( &hello.tcp.peer, server, sizeof ( hello.tcp.peer ) );
 	hello.message = message;
 	hello.callback = test_hello_callback;