创建Python Pinger - Sockets

Question

好吧，改变了一切，尝试问一个更具体的问题。

我有两个方法。doOnePing是我为使用sendOnePing而创建的，它是为帮助我更好地理解套接字而编写的。

我正在尝试理解我是否在doOnePing中正确地创建了套接字，我相信我是正确的，但我不确定我是否遗漏了一些特定的东西，或者是否可以做得更好。

谢谢

def sendOnePing(mySocket, destAddr, ID):
    # Header is type (8), code (8), checksum (16), id (16), sequence (16)

    myChecksum = 0
    # Make a dummy header with a 0 checksum
    # struct -- Interpret strings as packed binary data
    header = struct.pack("bbHHh", ICMP_ECHO_REQUEST, 0, myChecksum, ID, 1)
    data = struct.pack("d", time.time())
    # Calculate the checksum on the data and the dummy header.
    myChecksum = checksum(header + data)

    # Get the right checksum, and put in the header
    if sys.platform == 'darwin':
        # Convert 16-bit integers from host to network  byte order
        myChecksum = htons(myChecksum) & 0xffff
    else:
        myChecksum = htons(myChecksum)

    header = struct.pack("bbHHh", ICMP_ECHO_REQUEST, 0, myChecksum, ID, 1)
    packet = header + data

    mySocket.sendto(packet, (destAddr, 1))  # AF_INET address must be tuple, not str


# Both LISTS and TUPLES consist of a number of objects
# which can be referenced by their position number within the object.

def doOnePing(destAddr, timeout):
    icmp = getprotobyname("icmp")
    # SOCK_RAW For more details:   http://sock-raw.org/papers/sock_raw

    # Fill in start

    mySocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

    #Fill in end


    myID = os.getpid() & 0xFFFF  # Return the current process i
    sendOnePing(mySocket, destAddr, myID)
    delay = receiveOnePing(mySocket, myID, timeout, destAddr)

    mySocket.close()
    return delay

Answer 1

考虑使用scapy来代替ping。通过运行以下命令，您可以很容易地获得scapy：

pip install scapy

使用它，您将能够更容易地ping