Python Network Programming Cookbook - Second Edition

How to do it...

You can use the fnctl module to query the IP address on your machine.

Listing 3.5 shows us how to find the IP address for a specific interface on your machine, as follows:

 #!/usr/bin/env python # Python Network Programming Cookbook, Second Edition -- Chapter - 3 # This program is optimized for Python 2.7.12 and Python 3.5.2. # It may run on any other version with/without modifications. import argparse import sys import socket import fcntl import struct import array def get_ip_address(ifname): s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) return socket.inet_ntoa(fcntl.ioctl( s.fileno(), 0x8915, # SIOCGIFADDR struct.pack(b'256s', bytes(ifname[:15], 'utf-8')) )[20:24]) if __name__ == '__main__': parser = argparse.ArgumentParser(description='Python ...