VxWorks网络编程实现TCP连接

本示例代码展示如何使用VxWorks进行网络编程，实现TCP连接。首先创建套接字，然后进行网络连接并进行数据传输。代码中包含详细的注释说明。

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

#define SERVER_HOST "192.168.1.100"
#define SERVER_PORT 12345

void vxworks_tcp_client_example()
{
    int sock, status;
    char buffer[256];
    struct sockaddr_in sockAddr;

    /* 创建套接字 */
    sock = socket(AF_INET, SOCK_STREAM, 0);
    if(sock == ERROR)
    {
        printf("Error creating socket.\n");
        return;
    }

    /* 设置服务器地址和端口 */
    sockAddr.sin_family = AF_INET;
    sockAddr.sin_addr.s_addr = inet_addr(SERVER_HOST);
    sockAddr.sin_port = htons(SERVER_PORT);

    /* 进行TCP连接 */
    status = connect(sock, (struct sockaddr *)&sockAddr, sizeof(sockAddr));
    if(status == ERROR)
    {
        printf("Error connecting to server.\n");
        close(sock);
        return;
    }

    /* 发送和接收数据 */
    status = send(sock, "Hello, World!", 14, 0);
    if(status == ERROR)
    {
        printf("Error sending data.\n");
        close(sock);
        return;
    }
    status = recv(sock, buffer, sizeof(buffer), 0);
    if(status == ERROR)
    {
        printf("Error receiving data.\n");
        close(sock);
        return;
    }
    buffer[status] = '\0';
    printf("Received message: %s\n", buffer);

    /* 关闭套接字 */
    close(sock);
}

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