#include <u.h>
#include <libc.h>
#include <ureg.h>
#include "linuxsys.h"
#include "fns.h"

struct __old_kernel_stat {
	ushort st_dev;
	ushort st_ino;
	ushort st_mode;
	ushort st_nlink;
	ushort st_uid;
	ushort st_gid;
	ushort st_rdev;
	ulong  st_size;
	ulong  st_atime;
	ulong  st_mtime;
	ulong  st_ctime;
};

struct stat {
	ushort st_dev;
	ushort __pad1;
	ulong st_ino;
	ushort st_mode;
	ushort st_nlink;
	ushort st_uid;
	ushort st_gid;
	ushort st_rdev;
	ushort __pad2;
	ulong  st_size;
	ulong  st_blksize;
	ulong  st_blocks;
	ulong  st_atime;
	ulong  __unused1;
	ulong  st_mtime;
	ulong  __unused2;
	ulong  st_ctime;
	ulong  __unused3;
	ulong  __unused4;
	ulong  __unused5;
};

static void
dir2nstat(struct stat *st, Dir *d)
{
	st->st_dev = 0;
	st->st_ino = d->qid.path;
	st->st_mode = d->mode & 777;
	if(d->mode & CHDIR)
		st->st_mode |= 0040000;

	st->st_nlink = 1;
	st->st_uid = 1; // BUG get uid
	st->st_gid = 1; // BUG get gid
	st->st_size = d->length;
	st->st_rdev = 0;
	st->st_blksize = 512; // good as any
	st->st_blocks = (d->length+st->st_blksize-1) / st->st_blksize;
	st->st_atime = d->atime;
	st->st_mtime = d->mtime;
	st->st_ctime = d->mtime;	
}


void
sys_newfstat(struct Ureg *ureg)
{
	ulong fd = ARG1;
	struct stat *sbuf = (struct stat *) ARG2;
	Dir d;

	DPRINT("newfstat(%d, %x)...", fd, sbuf);
	if(dirfstat(fd, &d) < 0)
		RETURN(-EBADF);

	dir2nstat(sbuf, &d);
	RETURN(0);
}