#include <u.h>#include <libc.h>#include <fcall.h> intdirfwstat(int fd, Dir *d){	uchar *buf;	int r; 	r = sizeD2M(d);	buf = malloc(r);	if(buf == nil)		return -1;	convD2M(d, buf, r);	r = fwstat(fd, buf, r);	free(buf);	return r;}