UDP C++解码程序
时间: 2023-07-11 22:33:36 浏览: 49
以下是一个简单的UDP C++解码程序:
```cpp
#include <iostream>
#include <winsock2.h>
#pragma comment(lib, "ws2_32.lib")
int main()
{
// 初始化Winsock
WSADATA wsaData;
int iResult = WSAStartup(MAKEWORD(2, 2), &wsaData);
if (iResult != 0)
{
std::cout << "WSAStartup failed: " << iResult << std::endl;
return 1;
}
// 创建套接字
SOCKET recvSocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (recvSocket == INVALID_SOCKET)
{
std::cout << "socket failed: " << WSAGetLastError() << std::endl;
WSACleanup();
return 1;
}
// 绑定套接字
sockaddr_in recvAddr;
recvAddr.sin_family = AF_INET;
recvAddr.sin_port = htons(12345); // 设置端口号
recvAddr.sin_addr.s_addr = INADDR_ANY;
iResult = bind(recvSocket, (sockaddr*)&recvAddr, sizeof(recvAddr));
if (iResult == SOCKET_ERROR)
{
std::cout << "bind failed: " << WSAGetLastError() << std::endl;
closesocket(recvSocket);
WSACleanup();
return 1;
}
// 接收数据
char recvBuf[1024];
sockaddr_in senderAddr;
int senderAddrSize = sizeof(senderAddr);
iResult = recvfrom(recvSocket, recvBuf, sizeof(recvBuf), 0, (sockaddr*)&senderAddr, &senderAddrSize);
if (iResult == SOCKET_ERROR)
{
std::cout << "recvfrom failed: " << WSAGetLastError() << std::endl;
closesocket(recvSocket);
WSACleanup();
return 1;
}
// 解码数据
// ...
// 关闭套接字和Winsock
closesocket(recvSocket);
WSACleanup();
return 0;
}
```
该程序使用Winsock库在Windows平台上实现了一个简单的UDP套接字,用于接收字节流数据。您可以在此基础上添加解码逻辑,以实现您的特定需求。
相关推荐
![pdf](https://img-home.csdnimg.cn/images/20210720083512.png)
![rar](https://img-home.csdnimg.cn/images/20210720083606.png)
![rar](https://img-home.csdnimg.cn/images/20210720083606.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)