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如何解决此错误10069

分类: 技术问答 • 2022-03-13 12:16:03

如何解决此错误10069

问题描述：

帮助查找错误。

客户端和服务器都在一台计算机上。网络已断开连接。错误不断发生。防火墙已关闭。



此客户端：

Help to find the error.
Both client and server are on one machine. The network is disconnected. The error occurs constantly. The firewall is off.

This client side :

#include "stdafx.h"
#include <iostream>
#include <clocale>
#include <conio.h>

using namespace std;

bool Nonblocking(SOCKET fd)
{
	u_long arg = 1;
	return (::ioctlsocket(fd, FIONBIO, &arg) == 0);
}

// Disable blocking send/recv calls.
bool Blocking(SOCKET fd)
{
	u_long arg = 0;
	return (::ioctlsocket(fd, FIONBIO, &arg) == 0);
}

bool is_connected(int sock)
{
	char buf;
	int err = recv(sock, &buf, 1, MSG_PEEK);
	return err == -1 ? false : true;
}

void checkRecvEvent(WSANETWORKEVENTS NetworkEvents)
{
	switch (NetworkEvents.lNetworkEvents)
	{
	case FD_READ:   
		printf("Socket recived event FD_READ.\n");
		break;
	case FD_WRITE:
		printf("Socket recived event FD_WRITE.\n");
		break;
	case FD_OOB:
		printf("Socket recived event FD_OOB.\n");
		break;
	case FD_ACCEPT:
		printf("Socket recived event FD_ACCEPT.\n");
		break;
	case FD_CONNECT:
		printf("Socket recived event FD_CONNECT.\n");
		break;
	case FD_CLOSE:
		printf("Socket recived event FD_CLOSE.\n");
		break;
	case FD_QOS:
		printf("Socket recived event FD_QOS.\n");
		break;
	case FD_GROUP_QOS:
		printf("Socket recived event FD_GROUP_QOS.\n");
		break;
	case FD_ROUTING_INTERFACE_CHANGE:
		printf("Socket recived event FD_ROUTING_INTERFACE_CHANGE.\n");
		break;
	case FD_ADDRESS_LIST_CHANGE:
		printf("Socket recived event FD_ADDRESS_LIST_CHANGE.\n");
		break;
	case FD_ALL_EVENTS:
		printf("Socket recived event FD_ALL_EVENTS.\n");
		break;
	default:
		printf("We are not known this event.\n");

	}
}

int _tmain(int argc, _TCHAR* argv[])
{
	WSAData wsaData;
	const char ConnectIP[20] = "127.0.0.1";
	int errCode = 0;
	struct sockaddr_in addr, addr1;
	int iClientSize = sizeof(sockaddr);
	DWORD EventTotal = 0;
	WSANETWORKEVENTS NetworkEvents;
	WSAEVENT EventArray[WSA_MAXIMUM_WAIT_EVENTS];

	memset(&addr, 0, sizeof(sockaddr_in));
	memset(&addr1, 0, sizeof(sockaddr_in));

	if (WSAStartup(0x0202, &wsaData) != 0){
		return -1;
	}

	for (int i = 0; i < WSA_MAXIMUM_WAIT_EVENTS; i++)
		EventArray[i] = WSA_INVALID_EVENT;

	addr.sin_family = AF_INET;
	addr.sin_port = htons(5801);
	addr.sin_addr.s_addr = inet_addr(ConnectIP);

	SOCKET sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);

	addr1.sin_family = AF_INET;
	addr1.sin_port = htons(5802);
	addr1.sin_addr.s_addr = inet_addr(ConnectIP);

	SOCKET sock1 = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
	
	unsigned long sockArg = 1;
	if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (const char*)&sockArg, sizeof(sockArg)) != 0)
	{
		errCode = WSAGetLastError();
		closesocket(sock);
		printf("setsockopt for sock failed. WSAGetLastError() = %ld\n", errCode);
	}

	if (setsockopt(sock1, SOL_SOCKET, SO_REUSEADDR, (const char*)&sockArg, sizeof(sockArg)) != 0)
	{
		errCode = WSAGetLastError();
		closesocket(sock1);
		printf("setsockopt for sock1 failed. WSAGetLastError() = %ld\n", errCode);
	}

	//bool sb = Nonblocking(sock);
	//sb = Nonblocking(sock1);
		
	EventArray[0] = CreateEvent(NULL, FALSE, FALSE, NULL);
	WSAResetEvent(EventArray[0]);
	errCode = WSAEventSelect(sock, EventArray[0], FD_CONNECT);
	if (errCode == SOCKET_ERROR)
	{
		errCode = WSAGetLastError();
		printf("WSAEventSelect for sock failed. WSAGetLastError() = %ld\n", errCode);
	}

	

	EventArray[1] = CreateEvent(NULL, FALSE, FALSE, NULL);
	WSAResetEvent(EventArray[1]);
	errCode = WSAEventSelect(sock1, EventArray[1], FD_CONNECT);
	if (errCode == SOCKET_ERROR)
	{
		errCode = WSAGetLastError();
		printf("WSAEventSelect for sock failed. WSAGetLastError() = %ld\n", errCode);
	}
	//memset(&addr1, 0, sizeof(sockaddr_in));

	errCode = WSAConnect(sock, (PSOCKADDR)&addr, sizeof(addr), NULL, NULL, NULL, NULL);
	errCode = WSAGetLastError();

	errCode = WSAConnect(sock1, (PSOCKADDR)&addr1, sizeof(addr1), NULL, NULL, NULL, NULL);
	errCode = WSAGetLastError();

	DWORD index = 0;
	while (EventTotal == 0)
	{
		index = ::WaitForMultipleObjects(2, EventArray, TRUE, WSA_INFINITE);
		memset(&NetworkEvents, 0, sizeof(WSANETWORKEVENTS));
		errCode = WSAEnumNetworkEvents(sock, EventArray[0], &NetworkEvents);

		printf("Socket 0:\n");
		checkRecvEvent(NetworkEvents);

		memset(&NetworkEvents, 0, sizeof(WSANETWORKEVENTS));
		errCode = WSAEnumNetworkEvents(sock1, EventArray[1], &NetworkEvents);
		printf("Socket 1:\n");
		checkRecvEvent(NetworkEvents);

		EventTotal = 2;
	}
	int num1;

	cout << "Test Client => Num1" << endl;
	cin >> num1;

	for (int i = 0; i < WSA_MAXIMUM_WAIT_EVENTS; i++)
	{
		if (EventArray[i] != WSA_INVALID_EVENT)
			WSACloseEvent(EventArray[i]);
	}
	closesocket(sock);
	closesocket(sock1);

	return 0;
}





此服务器端：



This server side:

#include "stdafx.h"
#include <iostream>
#include <clocale>
#include <conio.h>

using namespace std;

int _tmain(int argc, _TCHAR* argv[])
{
	WSAData wsaData;
	char ConnectIP[255] = "127.0.0.1";
	int errCode = 0;
	struct sockaddr_in addr,addr1;
	//char errStr[1000];
	SOCKET AcceptSocket;
	sockaddr destSockAddr;
	int iClientSize = sizeof(sockaddr);
	DWORD EventTotal = 0;
	WSANETWORKEVENTS NetworkEvents;
	WSAEVENT EventArray[WSA_MAXIMUM_WAIT_EVENTS];

	if (WSAStartup(0x0202, &wsaData) != 0){
		return -1;
	}
	
	for (int i = 0; i < WSA_MAXIMUM_WAIT_EVENTS; i++)
		EventArray[i] = WSA_INVALID_EVENT;
	addr.sin_family = AF_INET;
	addr.sin_port = htons(58001);
	//addr.sin_addr.s_addr = htonl(INADDR_ANY);
	inet_pton(AF_INET, ConnectIP, &addr.sin_addr);
	
	SOCKET sock = socket(addr.sin_family, SOCK_STREAM, IPPROTO_TCP);

	unsigned long sockArg = 1;
	if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (const char*)&sockArg, sizeof(int)) != 0)
	{
		errCode = WSAGetLastError();
		closesocket(sock);
	}

	if (::bind(sock, (struct sockaddr *)&addr, sizeof(sockaddr_in)) == SOCKET_ERROR)
	{
		errCode = WSAGetLastError();
		closesocket(sock);
	}

	
	addr1.sin_family = AF_INET;
	addr1.sin_port = htons(58002);
	//addr1.sin_addr.s_addr = htonl(INADDR_ANY);
	inet_pton(AF_INET, ConnectIP, &addr1.sin_addr);

	SOCKET sock1 = socket(addr1.sin_family, SOCK_STREAM, IPPROTO_TCP);

	if (setsockopt(sock1, SOL_SOCKET, SO_REUSEADDR, (const char*)&sockArg, sizeof(int)) != 0)
	{
		errCode = WSAGetLastError();
		closesocket(sock1);
	}

	if (::bind(sock1, (struct sockaddr *)&addr1, sizeof(sockaddr_in)) == SOCKET_ERROR)
	{
		errCode = WSAGetLastError();
		closesocket(sock1);
	}
	
	//memset(&addr, 0, sizeof(sockaddr_in));
	errCode = ::listen(sock, SOMAXCONN);
	errCode = WSAGetLastError();

	errCode = ::listen(sock1, SOMAXCONN);
	errCode = WSAGetLastError();

	EventArray[0] = WSACreateEvent();
	WSAResetEvent(EventArray[0]);
	WSAEventSelect(sock, EventArray[0], FD_ACCEPT);
	EventTotal++;

	EventArray[1] = WSACreateEvent();
	WSAResetEvent(EventArray[1]);
	WSAEventSelect(sock1, EventArray[1], FD_ACCEPT);

	DWORD index = ::WaitForMultipleObjects(2, EventArray, TRUE, WSA_INFINITE);
	WSAEnumNetworkEvents(sock, EventArray[index - WSA_WAIT_EVENT_0], &NetworkEvents);
	if (NetworkEvents.lNetworkEvents &  FD_ACCEPT)
	{
		AcceptSocket = accept(sock, (SOCKADDR*)&destSockAddr, &iClientSize);
		closesocket(sock);
		sock = AcceptSocket;
		AcceptSocket = accept(sock1, (SOCKADDR*)&destSockAddr, &iClientSize);
		closesocket(sock1);
		sock1 = AcceptSocket;
	}
	
	int num1, num2;
	num2 = 1;
	cout << " Test Server => Num1" << endl;
	cin >> num1;

	for (int i = 0; i < WSA_MAXIMUM_WAIT_EVENTS; i++)
	if (EventArray[i] != NULL)
		WSACloseEvent(EventArray[i]);
	closesocket(sock);
	closesocket(sock1);

	return 0;
}







Don't understand what's going on. Help to find the error.
By the way, when I connect to the server using telnet, accept server works correctly.
telnet 127.0.0.1 58001
telnet 127.0.0.1 58002





我的尝试：



当我使用telnet连接到服务器时，接受服务器正常工作。

telnet 127.0.0.1 58001

telnet 127.0.0.1 58002

当我使用我的客户端连接到服务器时，服务器没有接收到WSAEvents，客户端拒绝



What I have tried:

When I connect to the server using telnet, accept server works correctly.
telnet 127.0.0.1 58001
telnet 127.0.0.1 58002
When I connect to the server using my client, server not receave WSAEvents, client refuse

答

你正在尝试连接到没有服务正在收听的端口。



来自您的客户端代码：

You are trying to connect to ports where no service is listening.

From your client code:
addr.sin_port = htons(5801);
addr1.sin_port = htons(5802);





来自您的服务器代码：



From your server code:

addr.sin_port = htons(58001);
addr1.sin_port = htons(58002);


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