Programming

int p[2],p1[2];
 pipe(p);
	pipe(p1);
	pid_t pid = fork();
	
	if(pid == 0)
	{
	close(p[1]);
	close(p1[0]); 
		
	dup2(p[0],0);
	dup2(p1[1],1); 
		
	execl("program","program",0);		

	}
	else
	{ 
		
		rcvd=read (sessionSocket, & buffer, sizeof( DataChunk ) );
		close(p[0]);
		close(p1[1]);
		
if ( rcvd < 0) {
		fprintf (stderr, "\nError Reading Socket, ERROR#%d\n", errno);
		perror (progName);
		return EXIT_FAILURE;
		}
		
if ( sizeof( DataChunk ) != rcvd )
		{
		fprintf (stderr, "\nReceived incomplete packet!\n");
		return EXIT_FAILURE;
		}
	
		write(p[1],&buffer,sizeof(DataChunk));
		read(p1[0], &buffer, sizeof(DataChunk) );

}