webserver
最编程
2024-10-06 07:22:37
...
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <unistd.h>
#define PORT 80
#define BUFFER_SIZE 1024
void handle_request(int client_socket) {
char buffer[BUFFER_SIZE];
char response[] = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n<html><body><h1>Hello, World!</h1></body></html>";
// 从客户端读取请求
ssize_t bytes_read = read(client_socket, buffer, BUFFER_SIZE - 1);
if (bytes_read == -1) {
perror("读取请求失败");
return;
}
buffer[bytes_read] = '\0';
// 打印请求内容
printf("收到请求:\n%s\n", buffer);
// 发送响应给客户端
ssize_t bytes_written = write(client_socket, response, strlen(response));
if (bytes_written == -1) {
perror("发送响应失败");
}
}
int main() {
int server_socket, client_socket;
struct sockaddr_in server_address, client_address;
socklen_t client_address_len;
// 创建套接字
if ((server_socket = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
perror("创建套接字失败");
exit(1);
}
// 设置地址重用
int reuse = 1;
if (setsockopt(server_socket, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof(reuse)) == -1) {
perror("设置地址重用失败");
exit(1);
// 绑定地址
server_address.sin_family = AF_INET;
server_address.sin_port = htons(PORT);
server_address.sin_addr.s_addr = htonl(INADDR_ANY);
if (bind(server_socket, (struct sockaddr *)&server_address, sizeof(server_address)) == -1) {
perror("绑定地址失败");
exit(1);
}
// 启动监听
if (listen(server_socket, 10) == -1) {
perror("启动监听失败");
exit(1);
}
printf("服务器已启动，监听端口 %d\n", PORT);
// 接受连接并处理请求
while (1) {
client_address_len = sizeof(client_address);
if ((client_socket = accept(server_socket, (struct sockaddr *)&client_address, &client_address_len)) == -1) {
perror("接受连接失败");
continue;
}
printf("接受新连接\n");
// 处理请求
handle_request(client_socket);
// 关闭客户端套接字
close(client_socket);
printf("连接已关闭\n");
}
// 关闭服务器套接字
close(server_socket);
return 0;
}
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