[PATCH] Add coreutils/unlink.c

[Xabier Oneca -- xOneca]

Hello,

2014-06-23 19:50 GMT+02:00 Rich Felker <dalias at libc.org>:
> On Mon, Jun 23, 2014 at 07:44:23PM +0200, Denys Vlasenko wrote:
>> On Mon, Jun 23, 2014 at 7:24 PM, Cathey, Jim <jcathey at ciena.com> wrote:
>> > The entire point of unlink, the reason it even
>> > exists, is that it never takes _any_ options.
>> > Anything you feed it is a filename, and it
>> > will delete it.
>>
>> coreutils disagree:
>>
>> $ unlink --version
>> unlink (GNU coreutils) 8.17
>> Copyright (C) 2012 Free Software Foundation, Inc.
>> License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
>> This is free software: you are free to change and redistribute it.
>> There is NO WARRANTY, to the extent permitted by law.
>>
>> Written by Michael Stone.
>>
>> $ unlink -qwerty
>> unlink: invalid option -- 'q'
>> Try 'unlink --help' for more information.
>
> This seems to be a bug in coreutils then.
>
> http://pubs.opengroup.org/onlinepubs/9699919799/utilities/unlink.html
>
> Under OPTIONS it says "None." For other utilities that take options,
> the text reads something like:
>
>     The rm utility shall conform to XBD Utility Syntax Guidelines.
>
> I think the specification is clear in that the coreutils behavior is
> not permitted.
>
> Rich

Well, unlink takes '--version' and '--help' as options. I think
there's a conflict between open standard and coreutils' oddity to
bring command syntax and version information with command line
switches.

If you want to support the '--help' switch (as do busybox, coreutils
and a lot of utilities), then you cannot conform to that standard.

Cheers,

Xabier Oneca_,,_