У меня проблемы с подключением к моему UDP-серверу. На VS он не показывал ошибок, за исключением случаев, когда я проверяю ошибки, выдает ошибку 10057.
Клиент UDP:
#define _WINSOCK_DEPRECATED_NO_WARNINGS
#include <Winsock2.h>
#include <ws2tcpip.h>
#include <stdio.h>
#include <iostream>
#include <string>
#include <string.h>
#pragma comment(lib, "ws2_32.lib")
#define ZeroMemory
using namespace std;
WSADATA wsadata;
SOCKET Client;
SOCKADDR_IN Server;
unsigned int Port = 5020;
int ret;
char buf[4096];
int len, tolen, fromlen, namelen;
int main(int argc, char * argv[])
{
// Initialize Winsocket
ret = WSAStartup(MAKEWORD(2, 2), &wsadata);
// CHECKS THE SOCKET STATUS
if (ret == SOCKET_ERROR)
{
printf("Client: Winstock Status is: %s ", wsadata.szSystemStatus);
WSACleanup();
cout << endl;
}
else
{
printf("Client: Winstock Status is: %s ", wsadata.szSystemStatus);
cout << endl;
}
// Client Address
Server.sin_family = AF_INET;
Server.sin_port = htons(Port);
inet_pton(AF_INET, "127.0.0.1", &Server.sin_addr);
// Create Socket
ret = Client = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
// CHECKS IF SOCKET IS CREATED
if (Client == INVALID_SOCKET)
{
cout << "Client: Can't Create Socket! ERROR: %s " << WSAGetLastError();
WSACleanup();
cout << endl;
}
// Bind Socket
ret = bind(Client, (sockaddr*)& Server,sizeof(Server));
// CHECKS IF SOCKET IS BINDED
if (ret == INVALID_SOCKET)
{
cout << "Client: Failed to bind socket" << WSAGetLastError(); ;
cout << endl;
}
string s(argv[1]);
// SendTo()
ret = sendto
(
Client,
s.c_str(),
s.size() + 1,
0,
(sockaddr*) & Server,
sizeof(Server)
);
if (ret == SOCKET_ERROR);
{
cout << "That did not work! Error Code: " << WSAGetLastError();
cout << endl;
}
// CloseSocket
closesocket(Client);
// CleanUp Winsocket
WSACleanup();
return 0;
}
UDP-сервер:
#define _WINSOCK_DEPRECATED_NO_WARNINGS
#include <Winsock2.h>
#include <ws2tcpip.h>
#include <stdio.h>
#include <iostream>
#include <string>
#include <string.h>
#pragma comment(lib, "ws2_32.lib")
using namespace std;
WSADATA wsadata;
SOCKET ServerSocket;
SOCKADDR_IN ServerAddress, Client;
unsigned int Port = 5020;
char buf[4096];
int ret;
int len, tolen, fromlen, namelen;
int main()
{
// Initializing Socket
ret = WSAStartup(MAKEWORD(2, 2), &wsadata);
if (ret == SOCKET_ERROR)
{
cout << "Server: Failed to initialized socket. Error: " << wsadata.szSystemStatus;
cout << endl;
}
else
{
cout << "Server: Successfully initialized socket." << wsadata.szSystemStatus;
cout << endl;
}
// Sever Address
ServerAddress.sin_family = AF_INET;
ServerAddress.sin_port = htons(Port);
inet_pton(AF_INET, "127.0.0.1", &ServerAddress.sin_addr);
// Create Socket
ret = ServerSocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (ret == -1)
{
cout << "Server: Failed to create socket. Error: " << WSAGetLastError();
cout << endl;
}
else
{
cout << "Server: Socket has been created ";
cout << endl;
}
// Bind Socket
ret = bind(ServerSocket, (sockaddr*)& ServerAddress, sizeof(ServerAddress));
if (ret == -1)
{
cout << "Server: Failed to bind socket. Error: " << WSAGetLastError();
cout << endl;
}
else
{
cout << "Server: Socket is binded to address ";
cout << endl;
}
int ClientLength = sizeof(Client);
while(true)
{
// receivefrom
ret = recvfrom
(
ServerSocket,
buf,
len,
0,
(sockaddr*)& Client,
&ClientLength
);
if (ret == SOCKET_ERROR)
{
cout << "Error receiving from client" << WSAGetLastError();
}
// display message
char ClientIP[256];
inet_ntop(AF_INET, &Client.sin_addr, ClientIP, 256);
cout << "message recieve from: " << ClientIP << " : " << buf << endl;
}
// Close Socket
closesocket(ServerSocket);
// Cleanup Winsocket
WSACleanup();
return 0;
}
Сначала я выполнил клиент, без проблем, затем выполнил сервер, затем клиент, когда он показал проблему.
// SendTo()
ret = sendto
(
Client,
s.c_str(),
s.size() + 1,
0,
(sockaddr*) & Server,
sizeof(Server)
);
if (ret == SOCKET_ERROR);
{
cout << "That did not work! Error Code: " << WSAGetLastError();
cout << endl;
}