Re: kern/57134: fstat on vnd returns empty size

[Martin Husemann <martin%duskware.de@localhost>]

The following reply was made to PR kern/57134; it has been noted by GNATS.

From: Martin Husemann <martin%duskware.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/57134: fstat on vnd returns empty size
Date: Mon, 26 Dec 2022 13:33:30 +0100

 The code runs via newfs.c:516
 
                 fsi = opendisk(special, O_RDONLY, device, sizeof(device), 0);
                 special = device;
                 if (fsi < 0 || fstat(fsi, &sb) == -1)
                         err(1, "%s: open for read", special);
                 if (S_ISBLK(sb.st_mode)) {
                         errx(1, "%s is a block device. use raw device",
                             special);
                 }
 
 the opendisk works (returns 3) and the fstat also works, but sb has
 sb.st_size == 0 (and sb.st_dev == 0xab01, which also looks strange).
 
 Martin