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Print lower vnode if vnode is on a layered filesystem.

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This commit is contained in:
enami 2000-08-14 06:03:21 +00:00
parent 86ef3ea256
commit 1dccbbfbd2
1 changed files with 34 additions and 3 deletions
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37
usr.bin/fstat/fstat.c
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@ -1,4 +1,4 @@
/* $NetBSD: fstat.c,v 1.42 2000/05/27 15:02:04 sommerfeld Exp $ */
/* $NetBSD: fstat.c,v 1.43 2000/08/14 06:03:21 enami Exp $ */
/*-
* Copyright (c) 1988, 1993
@ -43,7 +43,7 @@ __COPYRIGHT("@(#) Copyright (c) 1988, 1993\n\
#if 0
static char sccsid[] = "@(#)fstat.c 8.3 (Berkeley) 5/2/95";
#else
__RCSID("$NetBSD: fstat.c,v 1.42 2000/05/27 15:02:04 sommerfeld Exp $");
__RCSID("$NetBSD: fstat.c,v 1.43 2000/08/14 06:03:21 enami Exp $");
#endif
#endif /* not lint */
@ -81,6 +81,9 @@ __RCSID("$NetBSD: fstat.c,v 1.42 2000/05/27 15:02:04 sommerfeld Exp $");
#define _KERNEL
#include <msdosfs/msdosfsmount.h>
#undef _KERNEL
#define _KERNEL
#include <miscfs/genfs/layer.h>
#undef _KERNEL
#include <net/route.h>
#include <netinet/in.h>
@ -152,6 +155,8 @@ int ext2fs_filestat __P((struct vnode *, struct filestat *));
int getfname __P((char *));
void getinetproto __P((int));
char *getmnton __P((struct mount *));
int layer_filestat __P((struct vnode *, struct filestat *,
struct vnode **));
int main __P((int, char **));
int msdosfs_filestat __P((struct vnode *, struct filestat *));
int nfs_filestat __P((struct vnode *, struct filestat *));
@ -403,8 +408,9 @@ vtrans(vp, i, flag)
struct vnode vn;
struct filestat fst;
char mode[15], rw[3];
char *badtype = NULL, *filename;
char *badtype, *filename;
again:
filename = badtype = NULL;
if (!KVM_READ(vp, &vn, sizeof (struct vnode))) {
dprintf("can't read vnode at %p for pid %d", vp, Pid);
@ -444,6 +450,14 @@ vtrans(vp, i, flag)
if (!ntfs_filestat(&vn, &fst))
badtype = "error";
break;
case VT_NULL:
case VT_OVERLAY:
case VT_UMAP:
if (!layer_filestat(&vn, &fst, &vp))
badtype = "error";
else
goto again;
break;
default: {
static char unknown[10];
(void)snprintf(badtype = unknown, sizeof unknown,
@ -601,6 +615,23 @@ msdosfs_filestat(vp, fsp)
return 1;
}
int
layer_filestat(vp, fsp, nvp)
struct vnode *vp;
struct filestat *fsp;
struct vnode **nvp;
{
struct layer_node layer_node;
if (!KVM_READ(VTOLAYER(vp), &layer_node, sizeof(layer_node))) {
dprintf("can't read layer_node at %p for pid %d",
VTOLAYER(vp), Pid);
return (0);
}
*nvp = layer_node.layer_lowervp;
return (1);
}
char *
getmnton(m)
struct mount *m;