Date: Fri, 05 Apr 2019 09:05:47 -0600 From: Ian Lepore <ian@freebsd.org> To: Bruce Evans <brde@optusnet.com.au>, Ed Maste <emaste@freebsd.org> Cc: "Rodney W. Grimes" <rgrimes@freebsd.org>, Xin LI <delphij@freebsd.org>, src-committers <src-committers@freebsd.org>, svn-src-all <svn-src-all@freebsd.org>, svn-src-head <svn-src-head@freebsd.org> Subject: Re: svn commit: r345900 - head/sbin/fsck_msdosfs Message-ID: <75f6609a7c532df05a4a18442f4e14708b788f28.camel@freebsd.org> In-Reply-To: <20190406014249.N4174@besplex.bde.org> References: <201904050221.x352LGjU015040@repo.freebsd.org> <201904050449.x354nUEC036896@gndrsh.dnsmgr.net> <CAPyFy2C3KXTB7EKnp1PJigjUXY3xB_%2BPUddi43hjp5oKpZP56w@mail.gmail.com> <20190406014249.N4174@besplex.bde.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Sat, 2019-04-06 at 01:47 +1100, Bruce Evans wrote:
> On Fri, 5 Apr 2019, Ed Maste wrote:
>
> > On Fri, 5 Apr 2019 at 00:49, Rodney W. Grimes <freebsd@gndrsh.dnsmgr.net> wrote:
> >>
> >
> >>> +static const u_char dot_name[] = {
> >>> + '.', ' ',' ',' ',' ',' ',' ',' ',' ',' ',' ' };
> >>> +static const u_char dotdot_name[] = {
> >>> + '.', '.',' ',' ',' ',' ',' ',' ',' ',' ',' ' };
> >>> +
> >>
> >> Does it make since to encode these as hex or octal constants,
> >> one can not tell that those are different values in an easy
> >> manner. They all look like '.' in the diff, and probably
> >> in most editors.
>
> No, but it makes sense to write them as string constants. They are just
> the strings "." and ".." padded with spaces to length 11, except they
> are not actually strings since they are not NUL terminated. 11 is for
> 8+3 msdos short file names. These are not NUL terminated either, but
> it should be easy to ignore the extra NUL given by the string constants.
>
Defining them as nulterminated strings will also affect
sizeof(dot_name), better make sure nothing relies on that.
-- Ian
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?75f6609a7c532df05a4a18442f4e14708b788f28.camel>