#include <sys/stropts.h>

strioctl(fd, cmd, timout, len, dp)
int	fd;
int	cmd;
int	timout;
int	len;
char	*dp;
{
	struct	strioctl	sioc;
	int	rc;

	sioc.ic_cmd = cmd;
	sioc.ic_timout = timout;
	sioc.ic_len = len;
	sioc.ic_dp = dp;
	rc = ioctl(fd, I_STR, &sioc);

	if (rc < 0)
		return (rc);
	else
		return (sioc.ic_len);
}