case1.py

case1.py

import socket
import struct
import fcntl


sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sockfd = sock.fileno()

#define SIOCGIFADDR _IOWR('i', 33, struct ifreq)    /* get ifnet address */
SIOCGIFADDR = 0xc0206921


def get_ip(iface):
    ifreq = struct.pack('16sH14s', iface.encode('utf-8'), socket.AF_INET, b'\x00'*14)
    try:
        res = fcntl.ioctl(sockfd, SIOCGIFADDR, ifreq)
    except Exception as e:
        print(e)
        return None

    ip = struct.unpack('16sH2x4s8x', res)[2]
    return socket.inet_ntoa(ip)


if __name__ == "__main__":
    print("Interface list: {}".format(socket.if_nameindex()))
    print("IP of vioif0: {}".format(get_ip('vioif0')))

    import time
    time.sleep(10)
    print("Creating socket...")
    HOST = '192.168.1.4'    # The remote host
    PORT = 54321              # The same port as used by the server
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

    print("Connecting...")
    s.connect(('10.10.10.10', 12345))
    s.sendall('Hello, world')
    s.close()