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Get hostname and ip address of local computer

Tuesday Feb 9th 1999 by Jeff Lundgren

Get hostname and ip address of local computer

This code will get the host name and ip for the computer on which the code is run. This works in Visual C++ 5 SP1/2 on NT4 and 95.

Requirements

#include <winsock2.h>

Link with Wsock32.lib

That's It.
{
      WORD wVersionRequested;
      WSADATA wsaData;
      char name[255];
      CString ip;
      PHOSTENT hostinfo;
      wVersionRequested = MAKEWORD( 2, 0 );

      if ( WSAStartup( wVersionRequested, &wsaData ) == 0 )
      {

            if( gethostname ( name, sizeof(name)) == 0)
            {
                  if((hostinfo = gethostbyname(name)) != NULL)
                  {
                        ip = inet_ntoa (*(struct in_addr *)*hostinfo->h_addr_list);
                  }
            }
            
            WSACleanup( );
      } 
}

Article moved from Internet section on January 26 1999

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