Juan RP wrote:
> Please test and review, I'd want to commit this on the next days if there isn't
> any objection.

The $NetBSD$ tag should be in the first line. The "import" Ids should 
follow then in reversed order (which is irrelevant here).

/*	$NetBSD$ */
/*	OpenBSD ... */

It's just like in the mail headers ...

As Julio already said, make all variables and functions "static" if 
possible. It's a completely other namespace than for "extern" ones.

In calls to printf(3), explicitly cast the PRIu64 arguments to uint64_t. 
Just for portability. Or find someone who guarantees that daddr_t will 
always be (and stay) equivalent to uint64_t.

Make LABELS and VERBOSE into an enum. Invent another name as a 
replacement for literal 0. (A literal 0 could mean almost anything in a 
C program.)

An empty line between declarations and code could be useful.

Use /* NOTREACHED */ after calls to err().


In general, set WARNS=4 (or maybe 3) and check with lint(1). ;)

Roland