#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stropts.h>
#include <poll.h>


void main(int argc, char **argv)
{
	int i,n;

	struct pollfd fds;
	if ( -1 == (fds.fd=open(argv[1],O_RDONLY)))
		fds.fd=0;
	fds.events=POLLIN;
	fds.revents=0;

	if ( -1 == ( i=poll(&fds, 1, 0)))
		perror ("poll");

	if (i>=0)
	{
		printf("%d %d\n", i, fds.revents);
		if ( fds.revents & POLLIN ) puts ("POLLIN");
		if ( fds.revents & POLLPRI ) puts ("POLLPRI");
		if ( fds.revents & POLLOUT ) puts ("POLLOUT");
		if ( fds.revents & POLLRDNORM ) puts ("POLLRDNORM");
		if ( fds.revents & POLLRDBAND ) puts ("POLLRDBAND");
		if ( fds.revents & POLLNORM ) puts ("POLLNORM");
		if ( fds.revents & POLLERR ) puts ("POLLERR");
		if ( fds.revents & POLLHUP ) puts ("POLLHUP");
		if ( fds.revents & POLLNVAL ) puts ("POLLNVAL");
	}


}