Fix use of ulong macro (should have been u_long)

src/sbbs3/install/ftpio.c

@@ -567,7 +567,7 @@ static u_long resolve_ip(char *addr)
 		return(inet_addr(addr));
 	if((host=gethostbyname(addr))==NULL) 
 		return(INADDR_NONE);
-	return(*((ulong*)host->h_addr_list[0]));
+	return(*((u_long*)host->h_addr_list[0]));
 }