linux C 死循环监听

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

int main() {
    int server_socket, client_socket;
    struct sockaddr_in server_addr, client_addr;
    socklen_t client_len = sizeof(client_addr);

    // 创建socket
    server_socket = socket(AF_INET, SOCK_STREAM, 0);
    if (server_socket == -1) {
        perror("socket");
        exit(1);
    }

    // 绑定地址和端口
    memset(&server_addr, 0, sizeof(server_addr));
    server_addr.sin_family = AF_INET;
    server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
    server_addr.sin_port = htons(8080);

    if (bind(server_socket, (struct sockaddr*)&server_addr, sizeof(server_addr)) == -1) {
        perror("bind");
        close(server_socket);
        exit(1);
    }

    // 监听连接
    if (listen(server_socket, 5) == -1) {
        perror("listen");
        close(server_socket);
        exit(1);
    }

    printf("Server listening on port 8080...\n");

    while (1) { // 死循环
        // 接受连接
        client_socket = accept(server_socket, (struct sockaddr*)&client_addr, &client_len);
        if (client_socket == -1) {
            perror("accept");
            continue;
        }

        // 处理客户端请求
        char buffer[1024];
        int bytes_received = recv(client_socket, buffer, sizeof(buffer), 0);
        if (bytes_received > 0) {
            buffer[bytes_received] = '\0';
            printf("Received: %s\n", buffer);
            send(client_socket, "ACK", 3, 0); // 发送确认信息
        }

        close(client_socket); // 关闭客户端连接
    }

    close(server_socket); // 关闭服务器socket
    return 0;
}