----- Original Message -----
From: Lucas Holt <l...@foolishgames.com>
To: rank1see...@gmail.com
Cc: hack...@freebsd.org
Date: Sat, 5 Nov 2011 10:24:04 -0400
Subject: Re: BUG: 'glabel label' name's lenght, is truncated without
err/warn
>
> On Nov 5, 2011, at 7:02 AM, rank1see...@gmail.com wrote:
>
> > 8.2R p4 both i386/amd64
> >
> >
> > Supplied name of 16 chars
> > --
> > # glabel label -v swap_679592d048a ada0s3b
> > Metadata value stored on ada0s3b.
> > Done.
> > --
> >
> > Truncated to 15 chars
> > --
> > # ll /dev/label
> > total 0
> > crw-r----- 1 root operator - 0, 133 Nov 5 11:41:54 2011
swap_679592d048
> > --
> >
>
>
> The maximum size for the field is 16 so that explains the behavior you're
seeing. It's strlcpy'd in. Something like the following patch would
work:
>
> --- src/sbin/geom/class/label/geom_label.c 2008/11/21 21:05:31 1.3
> +++ src/sbin/geom/class/label/geom_label.c 2011/11/05 14:15:23 1.4
> @@ -118,6 +118,12 @@ label_label(struct gctl_req *req)
> return;
> }
>
> + label = gctl_get_ascii(req, "arg0");
> + if (strlen(label) > 15) {
> + gctl_error(req, "Label cannot exceed 15 characters");
> + return;
> + }
> +
> /*
> * Clear last sector first to spoil all components if device exists.
> */
> @@ -131,7 +137,6 @@ label_label(struct gctl_req *req)
>
> strlcpy(md.md_magic, G_LABEL_MAGIC, sizeof(md.md_magic));
> md.md_version = G_LABEL_VERSION;
> - label = gctl_get_ascii(req, "arg0");
> strlcpy(md.md_label, label, sizeof(md.md_label));
> md.md_provsize = g_get_mediasize(name);
> if (md.md_provsize == 0) {
>
> Lucas Holt
> l...@foolishgames.com
> ________________________________________________________
> MidnightBSD.org (Free OS)
> JustJournal.com (Free blogging)
>
Thanks.
Well, yes. Limit isn't a problem, but a silent ignore.
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