#include<stdio.h>
#include<stdlib.h>
#include<errno.h>
#include<string.h>
#include<sys/types.h>
#include<netinet/in.h>
#include<sys/socket.h>
#include<sys/wait.h>
#define SERVPORT 3334
#define BACKLOG 10
main()
{
int sockfd,client_fd,sin_size;
struct sockaddr_in my_addr;
struct sockaddr_in remote_addr;
if((sockfd = socket(AF_INET,SOCK_STREAM,0)) == -1)
{
perror("socket create error!");
exit(1);
}
my_addr.sin_family = AF_INET;
my_addr.sin_port = htons(SERVPORT);
my_addr.sin_addr.s_addr = INADDR_ANY;
bzero(&(my_addr.sin_zero),8);
if(bind(sockfd,(struct sockaddr *)&my_addr,sizeof(struct sockaddr)) == -1)
{
perror("bind error!");
exit(1);
}
while(1){
sin_size = sizeof(struct sockaddr_in);
if((client_fd = accept(sockfd,(struct sockaddr *)&remote_addr, &sin_size)) == -1){
perror("accept error!");
continue;
}
printf("received a connection from &s\n",inet_ntoa(remote_addr.sin_addr));
if(!fork())
{
if(send(client_fd,"Hello,you are connected! \n",26,0) == -1)
{
perror("send error!");
close(client_fd);
exit(0);
}
close(client_fd);
}
}
}
