请帮我写一个tcp服务端示例代码
时间: 2024-09-07 07:05:17 浏览: 18
当然可以,以下是一个简单的TCP服务端示例代码,仅供参考:
```
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <arpa/inet.h>
int main(int argc, char *argv[]) {
// 创建一个套接字
int server_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (server_socket == -1) {
printf("创建套接字失败\n");
exit(1);
}
// 绑定IP地址和端口号
struct sockaddr_in server_address;
memset(&server_address, 0, sizeof(server_address));
server_address.sin_family = AF_INET;
server_address.sin_addr.s_addr = inet_addr("127.0.0.1"); // 服务器IP地址
server_address.sin_port = htons(8080); // 服务器端口号
if (bind(server_socket, (struct sockaddr*)&server_address, sizeof(server_address)) == -1) {
printf("绑定失败\n");
exit(1);
}
// 监听客户端请求
if (listen(server_socket, 20) == -1) {
printf("监听失败\n");
exit(1);
}
printf("等待客户端连接...\n");
// 接受客户端连接请求
struct sockaddr_in client_address;
socklen_t client_address_size = sizeof(client_address);
int client_socket = accept(server_socket, (struct sockaddr*)&client_address, &client_address_size);
if (client_socket == -1) {
printf("接受客户端连接请求失败\n");
exit(1);
}
printf("客户端连接成功\n");
// 发送数据给客户端
const char* message = "Hello, Client!";
if (send(client_socket, message, strlen(message), 0) == -1) {
printf("发送数据失败\n");
exit(1);
}
// 关闭套接字
close(client_socket);
close(server_socket);
return 0;
}
```