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c++winsock

WinSock - get local IP address in long

I'm using c++ and winsock. I need to get ip address of local machine in long. Is there any simple way to do it?

Solution

  • Well, if it is a IPv4 address, you can do with binary operations, since long has 4 bytes

    void ipLong2String(int ipLong, char &ipStr) {
    ipStr.clear();
    ipStr << ((ipLong & 0xF000) >> 12) << "." 
            << ((ipLong & 0x0F00) >> 8) << "." 
            << ((ipLong & 0x00F0) >> 04 << "." 
            << (ipLong & 0x000F);
}

    With IPv6 won't be possible.