51 строка
1.4 KiB
C++
51 строка
1.4 KiB
C++
// Copyright (c) Microsoft Corporation
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// SPDX-License-Identifier: MIT
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#include <WinSock2.h>
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#include <iostream>
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#include <Windows.h>
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int
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main()
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{
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WSADATA wsa_data;
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if (WSAStartup(2, &wsa_data) != 0) {
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printf("WSAStartup failed\n");
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exit(1);
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}
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int leaked_ports = 0;
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for (;;) {
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auto s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
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if (s == INVALID_SOCKET) {
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continue;
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}
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sockaddr_in addr;
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addr.sin_addr.S_un.S_addr = 0;
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addr.sin_port = 0;
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addr.sin_family = AF_INET;
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if (bind(s, (sockaddr*)&addr, sizeof(addr)) != SOCKET_ERROR) {
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leaked_ports++;
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if (leaked_ports % 100 == 0) {
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printf("Leaked %d ports\n", leaked_ports);
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Sleep(10);
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}
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} else {
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DWORD error_value = WSAGetLastError();
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wchar_t* error_string = NULL;
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FormatMessageW(
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FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
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NULL,
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error_value,
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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(LPWSTR)&s,
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0,
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NULL);
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printf("bind failed: %S\t%d\n", error_string, error_value);
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LocalFree(error_string);
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Sleep(1000);
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}
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}
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} |