Update code

util.h

@@ -5,8 +5,13 @@
 
 #include <netdb.h>
 
+#define PORT_NOT_DEFINED -1
+#define MAX_IP_LEN 64
+
 unsigned long get_tick_count();
 
 char *gethost_by_addr(char *host, struct sockaddr *addr, socklen_t addr_len);
 
+int parse_ip(char *value, char *ip, int *port);
+
 #endif