基于tcp搭建服务器

服务器的搭建

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>

#define PORT 8888

int main()
{
	int sockfd,ret,fd;
	struct sockaddr_in server_addr;
	struct sockaddr_in client_addr;

	printf("Start Socket......\n");
	sockfd = socket(PF_INET ,SOCK_STREAM,0); //建立socket
	if(-1 == sockfd)
	{
		perror("socket");
		exit(1);
	}

	memset(&server_addr,0,sizeof(server_addr));
	server_addr.sin_family = PF_INET ;
	server_addr.sin_port = PORT;
	server_addr.sin_addr.s_addr = inet_addr("127.0.0.1");

	ret = bind(sockfd,(struct sockaddr *)&server_addr,sizeof(server_addr)); //绑定地址
	if(-1 == ret)
	{
		perror("bind");
		exit(1);
	}
	printf("listen ....\n");
	ret = listen(sockfd,5); //监听
	if(-1 == ret)
	{
		perror("listen");
		exit(1);
	}

	int length = sizeof(client_addr);
	fd = accept(sockfd,(struct sockaddr *)&client_addr,&length); //接收请求
	if(-1 == fd)
	{
		perror("accept");
		exit(1);
	}

	printf("Accept %d ,Port  %d\n",fd,client_addr.sin_port);

	close(fd);
	close(sockfd);
	return 0;

}