using namespace std;

#include<arpa/inet.h>
#include<stdlib.h>
#include<fstream>
#include<iostream>

main()
{
	int sockfd;
	struct sockaddr_in cli_addr,server_addr;
	char buffer[100];
	ofstream myfile;
	socklen_t clilen;

	if( (sockfd = socket(PF_INET,SOCK_STREAM,0)) < 0 )
	{
		cout<<"server - unable to open the socket."<<endl;
		exit(1);
	}
	server_addr.sin_family            =       PF_INET;
	server_addr.sin_addr.s_addr       =       inet_addr("172.16.16.33");
	server_addr.sin_port              =       htons(2009);
	if( bind(sockfd,(struct sockaddr*)&server_addr,sizeof(server_addr)) < 0 )
	{
		cout<<"Server - unable to bind the local address";
		exit(1);
	}
	listen(sockfd,1);
	while(1)
	{
		clilen = sizeof(cli_addr);
		bzero(buffer,100);
		if(accept(sockfd, (struct sockaddr*)&cli_addr, &clilen) < 0)
		{
			cout<<"Server - unable to accept the connection from client.";
                        exit(1);
		}
		if(recv(sockfd,buffer,100,0)<0)
		{
			cout<<"Server - unable to read the data from the socket.";
			exit(1);
		}
		myfile.open("data_file",ios::app);
		if(!myfile.is_open())
		{
			cout<<"Server - Unable to open file to write alert"<<endl;
			exit(1);
		}
		myfile<<buffer;
		myfile.close();
		}
	close(sockfd);
}