我之前使用 python 創(chuàng)建了一個(gè)簡單的數(shù)據(jù)包嗅探器，代碼如下：import socketimport osimport timehost = "192.168.0.164"if os.name == "nt":    socket_protocol = socket.IPPROTO_IPelse:    socket_protocol = socket.IPPROTO_ICMPwhile True:    sniffer = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket_protocol)    sniffer.bind((host, 0))    sniffer.setsockopt(socket.IPPROTO_IP, socket.IP_HDRINCL, 1)    sniffer.ioctl(socket.SIO_RCVALL, socket.RCVALL_ON)    out = sniffer.recvfrom(65565)    print("recieved {0} bytes from: {1}:{2}".format(len(out[0]), out[1][0], out[1][1]))    sniffer.ioctl(socket.SIO_RCVALL, socket.RCVALL_OFF)在一個(gè)循環(huán)中，它打印出接收到的數(shù)據(jù)包數(shù)據(jù)的大?。ㄒ宰止?jié)為單位）以及發(fā)送方和端口的 ip 地址。我正在嘗試使用 C++ 重新創(chuàng)建該程序，這是我目前所做的：#include <winsock2.h>#include <Ws2tcpip.h>#include <Mstcpip.h>#include <iostream>#include <windows.h>#define PORT 0struct sockaddr_in address;SOCKET sock;const char opt = 0;u_long mode_on = RCVALL_ON;u_long mode_off = RCVALL_OFF;char buffer;int main(){    address.sin_family = AF_INET;    address.sin_addr.s_addr = INADDR_ANY;    address.sin_port = htons(PORT);    sock = socket(AF_INET, SOCK_RAW, IPPROTO_IP);    setsockopt(sock, IPPROTO_IP, IP_HDRINCL, &opt, sizeof(opt));    bind(sock, (struct sockaddr*) & address, sizeof(address));    ioctlsocket(sock, SIO_RCVALL, &mode_on);    recv(sock, &buffer, 65565, 0);    std::cout << buffer << std::endl;    ioctlsocket(sock, SIO_RCVALL, &mode_off);    return 0;}我對c++中的套接字編程不是很熟悉。當(dāng)我運(yùn)行程序時(shí)，沒有輸出被打印出來。我試過循環(huán)運(yùn)行程序，看看是否恰好在那個(gè)時(shí)間沒有任何傳入的數(shù)據(jù)包，但仍然沒有運(yùn)氣。我運(yùn)行程序時(shí)沒有發(fā)生錯(cuò)誤。