root / otg / trunk / src / cpp / address.h

#ifndef ADDRESS_H
#define ADDRESS_H

#define MAX_HOSTNAME_LENGTH 256
#define MAC_ADDR_LENGTH 6

#include <string.h>
//#include <popt.h>

/**
 *  Address Class is to handle addresses.
 *  For normal socket, the address used will be a combination of IP address and port.
 *  In Socket Programming, IP address it self is not enough to distinguish an connection (stream, flow...), port # is also needed.
 *  For PF_PACKET sockets, the address used is MAC address (HW address). So, we also put macaddr_ as a member variable.
 */

class Address
{
  
 public:
      
  Address();
  Address(char* hostname, short port);
   
  /**
   * Check if an address has already been set or remain uninitialized
   *
   */ 
  inline bool isSet() { return (hostname_[0] != '\0' && port_ >= 0); }
  //inline bool isHWAddrSet() { return (macaddr_[0] != '\0');}
  
  inline void setPort(const short port){ port_ = port; }
  inline short getPort(){ return port_; }

  inline void setHostname(const char* hostname) { 
    if (hostname == NULL) hostname_[0] = '\0'; else strcpy(hostname_, hostname); }
  
  inline char* getHostname() {return hostname_;} 
  inline unsigned char* getHWAddr() { return macaddr_;} 
  void setHWAddr(unsigned char* hwaddr); 
  void setHWAddrFromColonFormat(const char* colon_seperated_macaddr);
  char * convertHWAddrToColonFormat();
  Address *clone();
  /**
   *Compare the two normal socket address is same or not
   */
  inline bool isSame(Address* addr)
  {
    if ( port_==  addr->getPort()) return false;
    if ( strcmp( hostname_, addr->getHostname() ) == 0 ) return true;
    return false;
  } 
  bool isSameMACAddr(Address* addr);

  //const struct poptOption* getOptions();

private:
  char   hostname_[MAX_HOSTNAME_LENGTH]; ///< both hostname and ipaddress format (10.0.0.1) could be given as a string
  short port_;  ///< port number for UDP or TCP (Transport layer)
  
  char * ipaddr_;  ///<optional use  
  unsigned char   macaddr_[MAC_ADDR_LENGTH]; ///< optional use for Ethernet Socket
  
  // define a "=" operator, is it possible?
  // yes  ..
  /*
   * do some coding later
   * .....
   */  
  
};


#endif