VxWorks中实现Socket通信的示例代码

该示例代码演示了如何在VxWorks实现Socket通信。通过创建Socket、绑定IP地址、端口号和监听客户端请求，实现了TCP服务器的搭建，同时也展示了如何创建并连接TCP客户端。

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define SOCKET_PORT  9000
#define MAX_BUFF     1024

int main()
{
    // 创建Socket
    int sockfd = socket(AF_INET, SOCK_STREAM, 0);
    if (sockfd == -1) {
        printf("Create socket error!\n");
        return -1;
    }

    // 设置服务器IP地址和端口号
    struct sockaddr_in srv_addr;
    bzero(&srv_addr,sizeof(srv_addr));
    srv_addr.sin_family = AF_INET;
    srv_addr.sin_addr.s_addr = htonl(INADDR_ANY);
    srv_addr.sin_port = htons(SOCKET_PORT);

    // 绑定Socket
    if (bind(sockfd, (struct sockaddr *)&srv_addr, sizeof(struct sockaddr)) == -1) {
        printf("Bind socket error!\n");
        close(sockfd);
        return -1;
    }

    // 监听客户端请求
    if (listen(sockfd, 10) == -1) {
        printf("Listen socket error!\n");
        close(sockfd);
        return -1;
    }

    // 接受客户端请求，并发送回应
    printf("Server is listening...\n");
    while(1) {
        struct sockaddr_in clt_addr;
        socklen_t len = sizeof(clt_addr);
        int cltfd = accept(sockfd, (struct sockaddr *)&clt_addr, &len);
        if (cltfd == -1) {
            printf("Accept socket error!\n");
            continue;
        }

        printf("Client %s:%d is connected!\n", inet_ntoa(clt_addr.sin_addr), ntohs(clt_addr.sin_port));
        char buff[MAX_BUFF] = {0};
        snprintf(buff, MAX_BUFF, "Server response!");
        send(cltfd, buff, strlen(buff), 0);
        close(cltfd);
    }

    return 0;
}

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