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

#define MAX_CLIENTS 2
#define MAX_RESPONSE_SIZE 1024
#define DEFAULT_PORT 8081

int main()
{

	struct sockaddr_in server;
	struct sockaddr_in client;

	int sock;
	int new_accepted;
	int sockaddr_sizeof = sizeof( struct sockaddr_in );
	ssize_t data_len;
	char response[MAX_RESPONSE_SIZE];

	if( (sock = socket(AF_INET, SOCK_STREAM,0)) == -1 )
	{
		perror("couldnot create socket");
		exit(1);
	}

	server.sin_family = AF_INET;
	server.sin_port = htons( DEFAULT_PORT );
	server.sin_addr.s_addr = INADDR_ANY;
	bzero(&server.sin_zero, 8);

	if ( bind( sock, (struct sockaddr *)&server, sockaddr_sizeof ) == -1 ) 
	{
		perror("Cannot bind");
		exit(1);
	}

	if ( listen( sock, MAX_CLIENTS ) == -1 ) 
	{
		perror("Error while listening");
		exit(1);
	}

	while ( 1 != 2 )
	{
		if ((new_accepted = accept(sock, (struct sockaddr *)&client, &sockaddr_sizeof )) == -1)
		{
			perror("could not accept new connection");
			exit(1);
		}
		printf("New Client connected from port no %d and IP %s\n", ntohs(client.sin_port), inet_ntoa(client.sin_addr));
	
		data_len = 1;
		while( data_len ) 
		{
			data_len = recv( new_accepted, response, MAX_RESPONSE_SIZE-1, 0 );
			response[data_len-1]=0;
			printf("Http-request size: %d byte\n", data_len);
			printf("%s", response);
			if ( data_len )
			{
				//char *p = (char *)memchr(&response[4], ' ', strlen( &response[4] ) );
				//*p = '\0';
				//send( new_accepted, &response[4], p-&response[4], 0 );
				send( new_accepted, "\r\n", 2, 0 );
				//send( new_accepted, response, data_len, 0 );
				//send( new_accepted, "Hello", 5, 0 );
				send( new_accepted, response, data_len-1, 0 );
				data_len = 0;
			}
		}
		printf("Client disconnected\n");
		close( new_accepted );
	}

	close( sock );

	return 0;
}