getIPaddress.cc File Reference

Example program to print IP address. More...

#include <string>
#include <vector>
#include <iostream>
#include <iomanip>
#include "JSystem/JNetwork.hh"
#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"

Go to the source code of this file.

Enumerations
enum	Option_t

Functions
int	main (int argc, char *argv[])

Detailed Description

Example program to print IP address.

Author

mdejong

Definition in file getIPaddress.cc.

Enumeration Type Documentation

enum Option_t

Definition at line 12 of file getIPaddress.cc.

                {
    IP_address  =   1,
    IP_subhex,
    IP_subdec,
    Hostname
  };

Function Documentation

int main	(	int	argc,
		char *	argv[]
	)

Definition at line 27 of file getIPaddress.cc.

{
  using namespace std;
  using namespace JPP;

  string host_name;
  int    option;

  try {

    JParser<> zap("Example program to print IP address.");

    zap['H'] = make_field(host_name)       = "localhost";
    zap['O'] = make_field(option, "option "
                          << IP_address << " -> IP address; "
                          << IP_subhex  << " -> IP sub-address (hex); "
                          << IP_subdec  << " -> IP sub-address (dec); "
                          << Hostname   << " -> host name")  = IP_address, IP_subhex, IP_subdec, Hostname;

    zap(argc, argv);
  }
  catch(const exception &error) {
    FATAL(error.what() << endl);
  }

  int ip = getIPnumber(host_name);

  switch (option) {

  case IP_address:
    cout << getIPaddress(ip)          << endl;  return 0;

  case IP_subhex:
    cout << hex << getSubaddress(ip)  << endl;  return 0;

  case IP_subdec:
    cout << dec << getSubaddress(ip)  << endl;  return 0;

  case Hostname:
    cout << dec << getHostname(ip)    << endl;  return 0;

  default:
    FATAL("Invalid option " << option << endl);
  }
}