C语言 Socket实现HTTP协议这个简单的服务器监听端口8080，接受客户端连接，读取HTTP请求，然后返回一个简单

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

#define PORT 8080
#define BUFFER_SIZE 1024

void handle_client(int client_socket) {
    char buffer[BUFFER_SIZE];
    memset(buffer, 0, sizeof(buffer));

    // 读取客户端的请求
    read(client_socket, buffer, sizeof(buffer) - 1);
    printf("Received request:\n%s\n", buffer);

    // 构造HTTP响应
    char response[] = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n<html><body><h1>Hello, this is a simple HTTP server</h1></body></html>";
    
    // 发送响应给客户端
    write(client_socket, response, sizeof(response) - 1);

    // 关闭连接
    close(client_socket);
}

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

    // 创建套接字
    server_socket = socket(AF_INET, SOCK_STREAM, 0);
    if (server_socket == -1) {
        perror("Error creating socket");
        exit(EXIT_FAILURE);
    }

    // 设置服务器地址结构
    server_addr.sin_family = AF_INET;
    server_addr.sin_addr.s_addr = INADDR_ANY;
    server_addr.sin_port = htons(PORT);

    // 绑定套接字到指定端口
    if (bind(server_socket, (struct sockaddr*)&server_addr, sizeof(server_addr)) == -1) {
        perror("Error binding socket");
        exit(EXIT_FAILURE);
    }

    // 监听连接
    if (listen(server_socket, 10) == -1) {
        perror("Error listening on socket");
        exit(EXIT_FAILURE);
    }

    printf("Server listening on port %d...\n", PORT);

    while (1) {
        // 接受客户端连接
        client_socket = accept(server_socket, (struct sockaddr*)&client_addr, &client_addr_len);
        if (client_socket == -1) {
            perror("Error accepting connection");
            continue;
        }

        // 处理客户端请求
        handle_client(client_socket);
    }

    // 关闭服务器套接字
    close(server_socket);

    return 0;
}

这个简单的服务器监听端口8080，接受客户端连接，读取HTTP请求，然后返回一个简单的HTML响应。请注意，这只是一个基本示例，实际的Web服务器会处理更多的HTTP特性和错误情况。在实际的应用中，你可能需要使用更健壮的库或框架，如libevent、libuv或其他专门用于网络编程的库。