linux socket客户端关闭

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <arpa/inet.h>

int main() {
    int sock;
    struct sockaddr_in server_addr;

    // 创建socket
    sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    if (sock == -1) {
        perror("socket");
        exit(EXIT_FAILURE);
    }

    // 设置服务器地址
    memset(&server_addr, 0, sizeof(server_addr));
    server_addr.sin_family = AF_INET;
    server_addr.sin_port = htons(8080);
    server_addr.sin_addr.s_addr = inet_addr("127.0.0.1");

    // 连接服务器
    if (connect(sock, (struct sockaddr*)&server_addr, sizeof(server_addr)) == -1) {
        perror("connect");
        close(sock);
        exit(EXIT_FAILURE);
    }

    // 发送数据
    const char* message = "Hello, Server!";
    send(sock, message, strlen(message), 0);

    // 关闭socket
    close(sock);

    return 0;
}