VxWorks网络编程实例：TCP服务器建立与数据交互

本示例演示了在VxWorks实时操作系统中创建一个简单的TCP服务器，实现与客户端的数据交互。通过使用套接字编程，展示了VxWorks在网络通信方面的灵活性与高效性。

#include <vxWorks.h>
#include <sockLib.h>
#include <inetLib.h>

void main()
{
    int listenSocket, clientSocket;
    struct sockaddr_in serverAddr, clientAddr;
    int port = 12345;

    // 创建套接字
    if ((listenSocket = socket(AF_INET, SOCK_STREAM, 0)) == ERROR)
        return;

    // 初始化服务器地址结构
    bzero((char *)&serverAddr, sizeof(serverAddr));
    serverAddr.sin_family = AF_INET;
    serverAddr.sin_len = sizeof(serverAddr);
    serverAddr.sin_port = htons(port);
    serverAddr.sin_addr.s_addr = htonl(INADDR_ANY);

    // 绑定套接字
    if (bind(listenSocket, (struct sockaddr *)&serverAddr, sizeof(serverAddr)) == ERROR)
        return;

    // 监听连接请求
    listen(listenSocket, 5);

    while (1)
    {
        int clientAddrLen = sizeof(clientAddr);

        // 接受客户端连接
        if ((clientSocket = accept(listenSocket, (struct sockaddr *)&clientAddr, &clientAddrLen)) == ERROR)
            continue;

        // 数据交互
        char buffer[256];
        int bytesRead = recv(clientSocket, buffer, sizeof(buffer), 0);
        send(clientSocket, buffer, bytesRead, 0);

        // 关闭连接
        close(clientSocket);
    }
}

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