/*****************************************
time:2015.9.19
by:stone
function:TCP编程 服务器
*****************************************/
#include <stdio.h>
#include <sys/socket.h>
#include <string.h>
#include <netinet/in.h>
#define portnum 3333 //端口
int main()
{
int sockfd,new_fd;
struct sockaddr_in server_addr; /*服务器*/
struct sockaddr_in client_addr;
char buffer[128];
int nbyte;
int sin_size;
//1.创建套接字
if((sockfd = socket(AF_INET,SOCK_STREAM,0)) == -1)/*如果等于-1 则创建失败*/
{
printf("creat socket error!\n");
exit(1);
}
//2.1 设置要绑定的地址
bzero(&server_addr,sizeof(struct sockaddr_in));/*清零*/
server_addr.sin_family = AF_INET; /*表示ipv4协议*/
server_addr.sin_port = htons(portnum); /*主机字节序转化为网络字节序*/
server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
//2.2绑定地址
bind(sockfd,(struct sockaddr *)(&server_addr),sizeof(struct sockaddr));
//3.监听端口
listen(sockfd,5);
while(1)
{
//4.等待连接
sin_size = sizeof(struct sockaddr);
new_fd = accept(sockfd,(struct sockaddr *)(&client_addr),&sin_size);
printf("serve get connect from %s\n",inet_ntoa(client_addr.sin_addr));
//5.接收数据
nbyte = recv(new_fd,buffer,128,0);
buffer[nbyte] = '\0';
printf("serve received : %s\n",buffer);
//6.结束连接
close(new_fd);
}
close(sockfd);
return 0;
}
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