scanner.py 文件源码

def TCP_connect(ip, port_number, delay, hosts):
    host_name = 'Unknown'
    TCPsock = socket.socket()
    TCPsock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
    TCPsock.settimeout(delay)
    try:
        host_name = socket.gethostbyaddr(ip)[0]
        # print(host_name)
    except socket.herror:
        pass
    try:
        TCPsock.connect((ip, port_number))
        if 'SSH' in str(TCPsock.recv(256)):
            hosts.append((host_name, ip))
            # print(host_name,ip)
    except (OSError, ConnectionRefusedError):
        pass