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Subject: bug#15945: chown: Does now allow setting user and users login group with numerical user ID
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Dear Gnu Team,
First off: Thanks for existing!! :)))
I think I just found a bug in chown... \o/ ;)
Details about my GNU/Linux system:
Debian wheezy stable 7.2
dpkg -S /bin/chown
coreutils: /bin/chown
dpkg -l|grep coreutils
ii coreutils 8.13-3.5 amd64 GNU core utilities
uname -a
Linux seven 3.10-0.bpo.3-amd64 #1 SMP Debian 3.10.11-1~bpo70+1
(2013-09-24) x86_64 GNU/Linux
echo $SHELL
/bin/zsh
I tried:
chown 1001: /tmp/bla
Leading to:
chown: invalid spec: `1001:'
But as 1001 == "me", it should have done a:
chown me: /tmp/bla
(which works just fine).
Is this a bug or a feature ?
... it should be a bug except if there is a technical detail I am
missing here.
Best,
Tormen
Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailer: MIME-tools 5.503 (Entity 5.503) Content-Type: text/plain; charset=utf-8 X-Loop: help-debbugs@HIDDEN From: help-debbugs@HIDDEN (GNU bug Tracking System) To: Tormen <quickhelp@HIDDEN> Subject: bug#15945: Acknowledgement (chown: Does now allow setting user and users login group with numerical user ID) Message-ID: <handler.15945.B.138504706514922.ack <at> debbugs.gnu.org> References: <528DF390.5010302@HIDDEN> X-Gnu-PR-Message: ack 15945 X-Gnu-PR-Package: coreutils Reply-To: 15945 <at> debbugs.gnu.org Date: Thu, 21 Nov 2013 15:18:04 +0000 Thank you for filing a new bug report with debbugs.gnu.org. This is an automatically generated reply to let you know your message has been received. Your message is being forwarded to the package maintainers and other interested parties for their attention; they will reply in due course. Your message has been sent to the package maintainer(s): bug-coreutils@HIDDEN If you wish to submit further information on this problem, please send it to 15945 <at> debbugs.gnu.org. Please do not send mail to help-debbugs@HIDDEN unless you wish to report a problem with the Bug-tracking system. --=20 15945: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D15945 GNU Bug Tracking System Contact help-debbugs@HIDDEN with problems
Received: (at control) by debbugs.gnu.org; 21 Nov 2013 15:53:58 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Thu Nov 21 10:53:58 2013 Received: from localhost ([127.0.0.1]:36879 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1VjWZp-0004qa-AG for submit <at> debbugs.gnu.org; Thu, 21 Nov 2013 10:53:57 -0500 Received: from mx1.redhat.com ([209.132.183.28]:8116) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from <eblake@HIDDEN>) id 1VjWZl-0004qG-AO; Thu, 21 Nov 2013 10:53:54 -0500 Received: from int-mx12.intmail.prod.int.phx2.redhat.com (int-mx12.intmail.prod.int.phx2.redhat.com [10.5.11.25]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id rALFrpiv017129 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 21 Nov 2013 10:53:51 -0500 Received: from [10.3.113.132] (ovpn-113-132.phx2.redhat.com [10.3.113.132]) by int-mx12.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id rALFropj009844; Thu, 21 Nov 2013 10:53:50 -0500 Message-ID: <528E2C8B.4080708@HIDDEN> Date: Thu, 21 Nov 2013 08:53:47 -0700 From: Eric Blake <eblake@HIDDEN> Organization: Red Hat, Inc. User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.0 MIME-Version: 1.0 To: Tormen <quickhelp@HIDDEN>, 15945-done <at> debbugs.gnu.org Subject: Re: bug#15945: chown: Does now allow setting user and users login group with numerical user ID References: <528DF390.5010302@HIDDEN> In-Reply-To: <528DF390.5010302@HIDDEN> X-Enigmail-Version: 1.6 OpenPGP: url=http://people.redhat.com/eblake/eblake.gpg Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="imujg6OXf9IB7akXQNsMKXs0hi8khXKRv" X-Scanned-By: MIMEDefang 2.68 on 10.5.11.25 X-Spam-Score: -5.5 (-----) X-Debbugs-Envelope-To: control X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <http://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <http://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <http://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -5.5 (-----) This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --imujg6OXf9IB7akXQNsMKXs0hi8khXKRv Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable tag 15945 notabug thanks On 11/21/2013 04:50 AM, Tormen wrote: >=20 > I think I just found a bug in chown... \o/ ;) >=20 > I tried: > chown 1001: /tmp/bla >=20 > Leading to: > chown: invalid spec: `1001:' Drop the trailing colon. > ... it should be a bug except if there is a technical detail I am > missing here. If you provide a colon, you MUST also provide a group spec. Per 'chown --help', the syntax is: chown [OPTION]... [OWNER][:[GROUP]] FILE... so these are valid: chown 1001 /tmp/bla # change owner only chown :1001 /tmp/bla # change group only chown 1001:1001 /tmp/bla # change both but this is invalid: chown 1001: /tmp/bla # '' is not a valid group --=20 Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org --imujg6OXf9IB7akXQNsMKXs0hi8khXKRv Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.15 (GNU/Linux) Comment: Public key at http://people.redhat.com/eblake/eblake.gpg Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBCAAGBQJSjiyMAAoJEKeha0olJ0Nqzk4H/2P+Ylq6+U87kPjEqzuIzxmT b//ZWRhrBDI9ssq2q5Jz1+yYag7LqeKKn9mo06YUpjJ18iF6Wu9uwk08kfhTQxfi wcIsd9ItOCiO93mbfJhRX8U6lpAbv7y3dnyux6HyX8JGucq4X3egcqOy31kK5euv 5akjYSm3ANbmRU1dIQJH9PZt/myGyL3TPv6ogQNg/qp3fuq6DFWK0k1ucHjMGeDH AH44NodAyLDcEsCSnU3+XPyBYohi9tuaMK/suFwcy8kZFKE1bikWwrvVJIlKH98e 2swsBUwlu5uta2lY8s/4UWePtLjrSz2WM0eGeuY2dlrUiwAEUpdRUptqTzF1crw= =9B/3 -----END PGP SIGNATURE----- --imujg6OXf9IB7akXQNsMKXs0hi8khXKRv--
MIME-Version: 1.0 X-Mailer: MIME-tools 5.503 (Entity 5.503) X-Loop: help-debbugs@HIDDEN From: help-debbugs@HIDDEN (GNU bug Tracking System) To: Eric Blake <eblake@HIDDEN> Subject: bug#15945: closed (chown: Does now allow setting user and users login group with numerical user ID) CC: tracker <at> debbugs.gnu.org Message-ID: <handler.15945.D15945.138504923718639.ackdone <at> debbugs.gnu.org> References: <528E2C8B.4080708@HIDDEN> <528DF390.5010302@HIDDEN> X-Gnu-PR-Message: closed 15945 X-Gnu-PR-Package: coreutils X-Gnu-PR-Keywords: notabug Date: Thu, 21 Nov 2013 15:54:03 +0000 Content-Type: multipart/mixed; boundary="----------=_1385049243-18668-0" This is a multi-part message in MIME format... ------------=_1385049243-18668-0 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Your message dated Thu, 21 Nov 2013 08:53:47 -0700 with message-id <528E2C8B.4080708@HIDDEN> and subject line Re: bug#15945: chown: Does now allow setting user and user= s login group with numerical user ID has caused the debbugs.gnu.org bug report #15945, regarding chown: Does now allow setting user and users login group with num= erical user ID to be marked as done. (If you believe you have received this mail in error, please contact help-debbugs@HIDDEN) --=20 15945: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D15945 GNU Bug Tracking System Contact help-debbugs@HIDDEN with problems ------------=_1385049243-18668-0 Content-Type: message/rfc822 Content-Disposition: inline Content-Transfer-Encoding: 7bit Received: (at submit) by debbugs.gnu.org; 21 Nov 2013 15:17:45 +0000 Received: from localhost ([127.0.0.1]:36842 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1VjW0n-0003sb-2L for submit <at> debbugs.gnu.org; Thu, 21 Nov 2013 10:17:45 -0500 Received: from eggs.gnu.org ([208.118.235.92]:47434) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from <quickhelp@HIDDEN>) id 1VjSmo-0004ol-6n for submit <at> debbugs.gnu.org; Thu, 21 Nov 2013 06:51:06 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from <quickhelp@HIDDEN>) id 1VjSma-0008B6-Ot for submit <at> debbugs.gnu.org; Thu, 21 Nov 2013 06:51:01 -0500 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM, T_DKIM_INVALID autolearn=disabled version=3.3.2 Received: from lists.gnu.org ([2001:4830:134:3::11]:40218) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <quickhelp@HIDDEN>) id 1VjSma-0008B1-Bt for submit <at> debbugs.gnu.org; Thu, 21 Nov 2013 06:50:52 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49122) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from <quickhelp@HIDDEN>) id 1VjSmR-000656-Tt for bug-coreutils@HIDDEN; Thu, 21 Nov 2013 06:50:52 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from <quickhelp@HIDDEN>) id 1VjSmJ-00088a-89 for bug-coreutils@HIDDEN; Thu, 21 Nov 2013 06:50:43 -0500 Received: from mail-wi0-x233.google.com ([2a00:1450:400c:c05::233]:34818) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <quickhelp@HIDDEN>) id 1VjSmJ-00088M-0p for bug-coreutils@HIDDEN; Thu, 21 Nov 2013 06:50:35 -0500 Received: by mail-wi0-f179.google.com with SMTP id ez12so907397wid.0 for <bug-coreutils@HIDDEN>; Thu, 21 Nov 2013 03:50:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject :content-type:content-transfer-encoding; bh=Gpf7X8PXTyN0MrClgdLJn50xdQJFLnLpL2NwrgLkUuQ=; b=iXYCrRnmflZPyJwVKo03Bnu4WTMwlDi8LQcO6gjSITV6ygAVWAwvT+KdbCBwTQOcXK wADu6kFtVRI8bCVivZZJu5C/kq5oRNZqdJezai/6MhH09ML049JvmJOET4uA62hmKT+4 i5GmHAAJsKMZll843puhiyLNY88dSUBDTK82kTZz+/Zbmp+1OlKbvdDrNNL8dNA3TZeL oUKc9fcZG7HIT+61YXLbr23TOgVVzzhtg6rj2BNDLXYDofaCZD11KGv02u1TG5StN6YG CVJt5h/63rcsTUUQkU+5bxUTyFWQoCKpRekZ/14YSNai2/SurmUhuJsWcswP/bcuSGkP W5gw== X-Received: by 10.180.89.98 with SMTP id bn2mr29644915wib.63.1385034633497; Thu, 21 Nov 2013 03:50:33 -0800 (PST) Received: from [192.168.192.168] (74.235.31.109.rev.sfr.net. [109.31.235.74]) by mx.google.com with ESMTPSA id ll10sm4455370wic.9.2013.11.21.03.50.32 for <multiple recipients> (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 21 Nov 2013 03:50:33 -0800 (PST) Message-ID: <528DF390.5010302@HIDDEN> Date: Thu, 21 Nov 2013 12:50:40 +0100 From: Tormen <quickhelp@HIDDEN> User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20131103 Icedove/17.0.10 MIME-Version: 1.0 To: bug-coreutils@HIDDEN Subject: chown: Does now allow setting user and users login group with numerical user ID Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2001:4830:134:3::11 X-Spam-Score: -4.0 (----) X-Debbugs-Envelope-To: submit X-Mailman-Approved-At: Thu, 21 Nov 2013 10:17:43 -0500 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <http://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <http://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <http://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -4.0 (----) Dear Gnu Team, First off: Thanks for existing!! :))) I think I just found a bug in chown... \o/ ;) Details about my GNU/Linux system: Debian wheezy stable 7.2 dpkg -S /bin/chown coreutils: /bin/chown dpkg -l|grep coreutils ii coreutils 8.13-3.5 amd64 GNU core utilities uname -a Linux seven 3.10-0.bpo.3-amd64 #1 SMP Debian 3.10.11-1~bpo70+1 (2013-09-24) x86_64 GNU/Linux echo $SHELL /bin/zsh I tried: chown 1001: /tmp/bla Leading to: chown: invalid spec: `1001:' But as 1001 == "me", it should have done a: chown me: /tmp/bla (which works just fine). Is this a bug or a feature ? ... it should be a bug except if there is a technical detail I am missing here. Best, Tormen ------------=_1385049243-18668-0 Content-Type: message/rfc822 Content-Disposition: inline Content-Transfer-Encoding: 7bit Received: (at 15945-done) by debbugs.gnu.org; 21 Nov 2013 15:53:57 +0000 Received: from localhost ([127.0.0.1]:36877 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1VjWZo-0004qX-54 for submit <at> debbugs.gnu.org; Thu, 21 Nov 2013 10:53:56 -0500 Received: from mx1.redhat.com ([209.132.183.28]:8116) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from <eblake@HIDDEN>) id 1VjWZl-0004qG-AO; Thu, 21 Nov 2013 10:53:54 -0500 Received: from int-mx12.intmail.prod.int.phx2.redhat.com (int-mx12.intmail.prod.int.phx2.redhat.com [10.5.11.25]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id rALFrpiv017129 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 21 Nov 2013 10:53:51 -0500 Received: from [10.3.113.132] (ovpn-113-132.phx2.redhat.com [10.3.113.132]) by int-mx12.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id rALFropj009844; Thu, 21 Nov 2013 10:53:50 -0500 Message-ID: <528E2C8B.4080708@HIDDEN> Date: Thu, 21 Nov 2013 08:53:47 -0700 From: Eric Blake <eblake@HIDDEN> Organization: Red Hat, Inc. User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.0 MIME-Version: 1.0 To: Tormen <quickhelp@HIDDEN>, 15945-done <at> debbugs.gnu.org Subject: Re: bug#15945: chown: Does now allow setting user and users login group with numerical user ID References: <528DF390.5010302@HIDDEN> In-Reply-To: <528DF390.5010302@HIDDEN> X-Enigmail-Version: 1.6 OpenPGP: url=http://people.redhat.com/eblake/eblake.gpg Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="imujg6OXf9IB7akXQNsMKXs0hi8khXKRv" X-Scanned-By: MIMEDefang 2.68 on 10.5.11.25 X-Spam-Score: -5.5 (-----) X-Debbugs-Envelope-To: 15945-done X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <http://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <http://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <http://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -5.5 (-----) This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --imujg6OXf9IB7akXQNsMKXs0hi8khXKRv Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable tag 15945 notabug thanks On 11/21/2013 04:50 AM, Tormen wrote: >=20 > I think I just found a bug in chown... \o/ ;) >=20 > I tried: > chown 1001: /tmp/bla >=20 > Leading to: > chown: invalid spec: `1001:' Drop the trailing colon. > ... it should be a bug except if there is a technical detail I am > missing here. If you provide a colon, you MUST also provide a group spec. Per 'chown --help', the syntax is: chown [OPTION]... [OWNER][:[GROUP]] FILE... so these are valid: chown 1001 /tmp/bla # change owner only chown :1001 /tmp/bla # change group only chown 1001:1001 /tmp/bla # change both but this is invalid: chown 1001: /tmp/bla # '' is not a valid group --=20 Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org --imujg6OXf9IB7akXQNsMKXs0hi8khXKRv Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.15 (GNU/Linux) Comment: Public key at http://people.redhat.com/eblake/eblake.gpg Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBCAAGBQJSjiyMAAoJEKeha0olJ0Nqzk4H/2P+Ylq6+U87kPjEqzuIzxmT b//ZWRhrBDI9ssq2q5Jz1+yYag7LqeKKn9mo06YUpjJ18iF6Wu9uwk08kfhTQxfi wcIsd9ItOCiO93mbfJhRX8U6lpAbv7y3dnyux6HyX8JGucq4X3egcqOy31kK5euv 5akjYSm3ANbmRU1dIQJH9PZt/myGyL3TPv6ogQNg/qp3fuq6DFWK0k1ucHjMGeDH AH44NodAyLDcEsCSnU3+XPyBYohi9tuaMK/suFwcy8kZFKE1bikWwrvVJIlKH98e 2swsBUwlu5uta2lY8s/4UWePtLjrSz2WM0eGeuY2dlrUiwAEUpdRUptqTzF1crw= =9B/3 -----END PGP SIGNATURE----- --imujg6OXf9IB7akXQNsMKXs0hi8khXKRv-- ------------=_1385049243-18668-0--
MIME-Version: 1.0 X-Mailer: MIME-tools 5.503 (Entity 5.503) X-Loop: help-debbugs@HIDDEN From: help-debbugs@HIDDEN (GNU bug Tracking System) To: Tormen <quickhelp@HIDDEN> Subject: bug#15945: closed (Re: bug#15945: chown: Does now allow setting user and users login group with numerical user ID) Message-ID: <handler.15945.D15945.138504923718639.notifdone <at> debbugs.gnu.org> References: <528E2C8B.4080708@HIDDEN> <528DF390.5010302@HIDDEN> X-Gnu-PR-Message: they-closed 15945 X-Gnu-PR-Package: coreutils X-Gnu-PR-Keywords: notabug Reply-To: 15945 <at> debbugs.gnu.org Date: Thu, 21 Nov 2013 15:54:05 +0000 Content-Type: multipart/mixed; boundary="----------=_1385049245-18668-1" This is a multi-part message in MIME format... ------------=_1385049245-18668-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Your bug report #15945: chown: Does now allow setting user and users login group with numer= ical user ID which was filed against the coreutils package, has been closed. The explanation is attached below, along with your original report. If you require more details, please reply to 15945 <at> debbugs.gnu.org. --=20 15945: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D15945 GNU Bug Tracking System Contact help-debbugs@HIDDEN with problems ------------=_1385049245-18668-1 Content-Type: message/rfc822 Content-Disposition: inline Content-Transfer-Encoding: 7bit Received: (at 15945-done) by debbugs.gnu.org; 21 Nov 2013 15:53:57 +0000 Received: from localhost ([127.0.0.1]:36877 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1VjWZo-0004qX-54 for submit <at> debbugs.gnu.org; Thu, 21 Nov 2013 10:53:56 -0500 Received: from mx1.redhat.com ([209.132.183.28]:8116) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from <eblake@HIDDEN>) id 1VjWZl-0004qG-AO; Thu, 21 Nov 2013 10:53:54 -0500 Received: from int-mx12.intmail.prod.int.phx2.redhat.com (int-mx12.intmail.prod.int.phx2.redhat.com [10.5.11.25]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id rALFrpiv017129 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 21 Nov 2013 10:53:51 -0500 Received: from [10.3.113.132] (ovpn-113-132.phx2.redhat.com [10.3.113.132]) by int-mx12.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id rALFropj009844; Thu, 21 Nov 2013 10:53:50 -0500 Message-ID: <528E2C8B.4080708@HIDDEN> Date: Thu, 21 Nov 2013 08:53:47 -0700 From: Eric Blake <eblake@HIDDEN> Organization: Red Hat, Inc. User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.0 MIME-Version: 1.0 To: Tormen <quickhelp@HIDDEN>, 15945-done <at> debbugs.gnu.org Subject: Re: bug#15945: chown: Does now allow setting user and users login group with numerical user ID References: <528DF390.5010302@HIDDEN> In-Reply-To: <528DF390.5010302@HIDDEN> X-Enigmail-Version: 1.6 OpenPGP: url=http://people.redhat.com/eblake/eblake.gpg Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="imujg6OXf9IB7akXQNsMKXs0hi8khXKRv" X-Scanned-By: MIMEDefang 2.68 on 10.5.11.25 X-Spam-Score: -5.5 (-----) X-Debbugs-Envelope-To: 15945-done X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <http://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <http://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <http://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -5.5 (-----) This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --imujg6OXf9IB7akXQNsMKXs0hi8khXKRv Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable tag 15945 notabug thanks On 11/21/2013 04:50 AM, Tormen wrote: >=20 > I think I just found a bug in chown... \o/ ;) >=20 > I tried: > chown 1001: /tmp/bla >=20 > Leading to: > chown: invalid spec: `1001:' Drop the trailing colon. > ... it should be a bug except if there is a technical detail I am > missing here. If you provide a colon, you MUST also provide a group spec. Per 'chown --help', the syntax is: chown [OPTION]... [OWNER][:[GROUP]] FILE... so these are valid: chown 1001 /tmp/bla # change owner only chown :1001 /tmp/bla # change group only chown 1001:1001 /tmp/bla # change both but this is invalid: chown 1001: /tmp/bla # '' is not a valid group --=20 Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org --imujg6OXf9IB7akXQNsMKXs0hi8khXKRv Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.15 (GNU/Linux) Comment: Public key at http://people.redhat.com/eblake/eblake.gpg Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBCAAGBQJSjiyMAAoJEKeha0olJ0Nqzk4H/2P+Ylq6+U87kPjEqzuIzxmT b//ZWRhrBDI9ssq2q5Jz1+yYag7LqeKKn9mo06YUpjJ18iF6Wu9uwk08kfhTQxfi wcIsd9ItOCiO93mbfJhRX8U6lpAbv7y3dnyux6HyX8JGucq4X3egcqOy31kK5euv 5akjYSm3ANbmRU1dIQJH9PZt/myGyL3TPv6ogQNg/qp3fuq6DFWK0k1ucHjMGeDH AH44NodAyLDcEsCSnU3+XPyBYohi9tuaMK/suFwcy8kZFKE1bikWwrvVJIlKH98e 2swsBUwlu5uta2lY8s/4UWePtLjrSz2WM0eGeuY2dlrUiwAEUpdRUptqTzF1crw= =9B/3 -----END PGP SIGNATURE----- --imujg6OXf9IB7akXQNsMKXs0hi8khXKRv-- ------------=_1385049245-18668-1 Content-Type: message/rfc822 Content-Disposition: inline Content-Transfer-Encoding: 7bit Received: (at submit) by debbugs.gnu.org; 21 Nov 2013 15:17:45 +0000 Received: from localhost ([127.0.0.1]:36842 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1VjW0n-0003sb-2L for submit <at> debbugs.gnu.org; Thu, 21 Nov 2013 10:17:45 -0500 Received: from eggs.gnu.org ([208.118.235.92]:47434) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from <quickhelp@HIDDEN>) id 1VjSmo-0004ol-6n for submit <at> debbugs.gnu.org; Thu, 21 Nov 2013 06:51:06 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from <quickhelp@HIDDEN>) id 1VjSma-0008B6-Ot for submit <at> debbugs.gnu.org; Thu, 21 Nov 2013 06:51:01 -0500 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM, T_DKIM_INVALID autolearn=disabled version=3.3.2 Received: from lists.gnu.org ([2001:4830:134:3::11]:40218) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <quickhelp@HIDDEN>) id 1VjSma-0008B1-Bt for submit <at> debbugs.gnu.org; Thu, 21 Nov 2013 06:50:52 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49122) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from <quickhelp@HIDDEN>) id 1VjSmR-000656-Tt for bug-coreutils@HIDDEN; Thu, 21 Nov 2013 06:50:52 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from <quickhelp@HIDDEN>) id 1VjSmJ-00088a-89 for bug-coreutils@HIDDEN; Thu, 21 Nov 2013 06:50:43 -0500 Received: from mail-wi0-x233.google.com ([2a00:1450:400c:c05::233]:34818) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <quickhelp@HIDDEN>) id 1VjSmJ-00088M-0p for bug-coreutils@HIDDEN; Thu, 21 Nov 2013 06:50:35 -0500 Received: by mail-wi0-f179.google.com with SMTP id ez12so907397wid.0 for <bug-coreutils@HIDDEN>; Thu, 21 Nov 2013 03:50:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject :content-type:content-transfer-encoding; bh=Gpf7X8PXTyN0MrClgdLJn50xdQJFLnLpL2NwrgLkUuQ=; b=iXYCrRnmflZPyJwVKo03Bnu4WTMwlDi8LQcO6gjSITV6ygAVWAwvT+KdbCBwTQOcXK wADu6kFtVRI8bCVivZZJu5C/kq5oRNZqdJezai/6MhH09ML049JvmJOET4uA62hmKT+4 i5GmHAAJsKMZll843puhiyLNY88dSUBDTK82kTZz+/Zbmp+1OlKbvdDrNNL8dNA3TZeL oUKc9fcZG7HIT+61YXLbr23TOgVVzzhtg6rj2BNDLXYDofaCZD11KGv02u1TG5StN6YG CVJt5h/63rcsTUUQkU+5bxUTyFWQoCKpRekZ/14YSNai2/SurmUhuJsWcswP/bcuSGkP W5gw== X-Received: by 10.180.89.98 with SMTP id bn2mr29644915wib.63.1385034633497; Thu, 21 Nov 2013 03:50:33 -0800 (PST) Received: from [192.168.192.168] (74.235.31.109.rev.sfr.net. [109.31.235.74]) by mx.google.com with ESMTPSA id ll10sm4455370wic.9.2013.11.21.03.50.32 for <multiple recipients> (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 21 Nov 2013 03:50:33 -0800 (PST) Message-ID: <528DF390.5010302@HIDDEN> Date: Thu, 21 Nov 2013 12:50:40 +0100 From: Tormen <quickhelp@HIDDEN> User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20131103 Icedove/17.0.10 MIME-Version: 1.0 To: bug-coreutils@HIDDEN Subject: chown: Does now allow setting user and users login group with numerical user ID Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2001:4830:134:3::11 X-Spam-Score: -4.0 (----) X-Debbugs-Envelope-To: submit X-Mailman-Approved-At: Thu, 21 Nov 2013 10:17:43 -0500 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <http://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <http://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <http://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -4.0 (----) Dear Gnu Team, First off: Thanks for existing!! :))) I think I just found a bug in chown... \o/ ;) Details about my GNU/Linux system: Debian wheezy stable 7.2 dpkg -S /bin/chown coreutils: /bin/chown dpkg -l|grep coreutils ii coreutils 8.13-3.5 amd64 GNU core utilities uname -a Linux seven 3.10-0.bpo.3-amd64 #1 SMP Debian 3.10.11-1~bpo70+1 (2013-09-24) x86_64 GNU/Linux echo $SHELL /bin/zsh I tried: chown 1001: /tmp/bla Leading to: chown: invalid spec: `1001:' But as 1001 == "me", it should have done a: chown me: /tmp/bla (which works just fine). Is this a bug or a feature ? ... it should be a bug except if there is a technical detail I am missing here. Best, Tormen ------------=_1385049245-18668-1--
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On 11/21/2013 08:53 AM, Eric Blake wrote:
> If you provide a colon, you MUST also provide a group spec. Per 'chown=
> --help', the syntax is:
> chown [OPTION]... [OWNER][:[GROUP]] FILE...
Hmm, on re-reading this, I think we have two bugs in our help syntax.
The major bug is that we document [GROUP] as optional, but in reality it
is mandatory if ':' is present. So we definitely need to change
'[:[GROUP]]' to '[:GROUP]'.
The minor group stems from a GNU extension. POSIX requires that the
OWNER portion is mandatory:
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/chown.html
But as a GNU extension, we allow it to be empty to allow for:
> chown :1001 /tmp/bla # change group only
But as written, the usage text implies that we can omit both OWNER and
:GROUP and still have a valid call, as in:
chown /tmp/bla
which isn't quite true. Alas, the only way I can see to rewrite the
fact that SOME spec is necessary, while still highlighting the GNU
extension of omitting OWNER, is to split the usage into two lines:
Usage: chown [OPTION]... OWNER[:[GROUP]] FILE...
or: chown [OPTION]... :GROUP FILE...
Thoughts? Should we reopen this bug to track the doc bug[s]?
--=20
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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Subject: bug#15945: chown: Does now allow setting user and users login group with numerical user ID
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Hi,
On Thu, Nov 21, 2013 at 08:53:47AM -0700, Eric Blake wrote:
> On 11/21/2013 04:50 AM, Tormen wrote:
> >
> > I think I just found a bug in chown... \o/ ;)
> >
> > I tried:
> > chown 1001: /tmp/bla
> >
> > Leading to:
> > chown: invalid spec: `1001:'
>
> Drop the trailing colon.
>
> > ... it should be a bug except if there is a technical detail I am
> > missing here.
>
> If you provide a colon, you MUST also provide a group spec. Per 'chown
> --help', the syntax is:
> chown [OPTION]... [OWNER][:[GROUP]] FILE...
> so these are valid:
> chown 1001 /tmp/bla # change owner only
> chown :1001 /tmp/bla # change group only
> chown 1001:1001 /tmp/bla # change both
> but this is invalid:
> chown 1001: /tmp/bla # '' is not a valid group
Should this be changed to 'chown [OPTION]... [OWNER][:GROUP] FILE...'
then?
Erik
X-Loop: help-debbugs@HIDDEN
Subject: bug#15945: closed (Re: bug#15945: chown: Does now allow setting user and users login group with numerical user ID)
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Dear GNU team,
But why is not possible for "chown 1001: /tmp/bla"
to resolve 1001 to "me"
and then do the same than "chown me: /tmp/bla" ?
(I guess internally chown will do the reverse lookup (me -> 1001), when
performing a "chown me: /tmp/bla")
Could you please be so kind to explain the "why not" ?
==============================================
Wording in "man chown":
DESCRIPTION
This manual page documents the GNU version of chown. chown
changes the
user and/or group ownership of each given file. If only an
owner (a
user name or numeric user ID) is given, that user is made the
owner of
each given file, and the files' group is not changed. [1] If the
owner is
followed by a colon and a group name (or numeric group ID),
with no
spaces between them, the group ownership of the files is
changed as
well. [2] If a colon but no group name follows the user name,
that user is
made the owner of the files and the group of the files is
changed to
that user's login group. If the colon and group are given,
but the
owner is omitted, only the group of the files is changed; in this
case,
chown performs the same function as chgrp. If only a colon is
given,
or if the entire operand is empty, neither the owner nor the
group is
changed.
[1] At this point "owner" is referenced as "name or numeric ID".
[2] At this point you do not reprecise "owner" but only state about the
additional colon ":" -- so one must expect "owner" still to be "name or
numeric ID".
Best,
Tormen
On 21/11/13 16:54, GNU bug Tracking System wrote:
> Your bug report
>
> #15945: chown: Does now allow setting user and users login group with numerical user ID
>
> which was filed against the coreutils package, has been closed.
>
> The explanation is attached below, along with your original report.
> If you require more details, please reply to 15945 <at> debbugs.gnu.org.
>
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Subject: bug#15945: chown: Does now allow setting user and users login group with numerical user ID
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Hi again,
Sorry, I don't know why, but I missed this part of your answer:
On 21/11/13 16:53, Eric Blake wrote:
>> I think I just found a bug in chown... \o/ ;)
>>
>> I tried:
>> chown 1001: /tmp/bla
>>
>> Leading to:
>> chown: invalid spec: `1001:'
> Drop the trailing colon.
But I want the same effect than
chown me: /tmp/bla
so changing:
(1) the owner of /tmp/bla to user "me"
(2) the group of /tmp/bla to the login-group of user "me"
chown me /tmp/bla
should only do (1), no ?
> If you provide a colon, you MUST also provide a group spec. Per 'chown
> --help', the syntax is:
> chown [OPTION]... [OWNER][:[GROUP]] FILE...
> so these are valid:
> chown 1001 /tmp/bla # change owner only
> chown :1001 /tmp/bla # change group only
> chown 1001:1001 /tmp/bla # change both
> but this is invalid:
> chown 1001: /tmp/bla # '' is not a valid group
Yes, but when you execute:
chown me: /tmp/bla
as group is '' as well and it is not a problem.
I don't see any problem / ambiguity in allowing both:
chown me: /tmp/bla
chown 1001: /tmp/bla
especially as:
chown me /tmp/bla
chown 1001 /tmp/bla
are both possible and provide the same result.
So for the trailing ":" case it should be (flexibly/convieniently) work
the same, no ?
Tormen
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tag 15945 - notabug
reopen 15945
thanks
On 11/21/2013 09:24 AM, Tormen wrote:
>>> Leading to:
>>> chown: invalid spec: `1001:'
>> Drop the trailing colon.
> But I want the same effect than
> chown me: /tmp/bla
Ooh, you're right. We DO document that:
OWNER':'GROUP
If the OWNER is followed by a colon and a GROUP (a group name or
numeric group ID), with no spaces between them, the group ownership
of the files is changed as well (to GROUP).
OWNER':'
If a colon but no group name follows OWNER, that user is made the
owner of the files and the group of the files is changed to OWNER's
login group.
so it looks like we have a bug that if OWNER is numeric, we aren't
looking up OWNER's login group.
Which means my earlier comments aren't quite correct - the existing use
of [:[GROUP]] in usage text is correct. But I _still_ think we need to
split into two lines to make it obvious that the argument itself is
mandatory, as in:
Usage: chown [OPTION]... OWNER[:[GROUP]] FILE...
or: chown [OPTION]... :[GROUP] FILE...
or even rewrite it along the lines of the info page:
Usage: chown [OPTION]... NEWSPEC FILE...
and document that NEWSPEC is [OWNER][:[GROUP]]
--=20
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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Subject: Re: bug#15945: chown: Does now allow setting user and users login
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tag 15945 - notabug
reopen 15945
thanks
On 11/21/2013 09:24 AM, Tormen wrote:
>>> Leading to:
>>> chown: invalid spec: `1001:'
>> Drop the trailing colon.
> But I want the same effect than
> chown me: /tmp/bla
Ooh, you're right. We DO document that:
OWNER':'GROUP
If the OWNER is followed by a colon and a GROUP (a group name or
numeric group ID), with no spaces between them, the group ownership
of the files is changed as well (to GROUP).
OWNER':'
If a colon but no group name follows OWNER, that user is made the
owner of the files and the group of the files is changed to OWNER's
login group.
so it looks like we have a bug that if OWNER is numeric, we aren't
looking up OWNER's login group.
Which means my earlier comments aren't quite correct - the existing use
of [:[GROUP]] in usage text is correct. But I _still_ think we need to
split into two lines to make it obvious that the argument itself is
mandatory, as in:
Usage: chown [OPTION]... OWNER[:[GROUP]] FILE...
or: chown [OPTION]... :[GROUP] FILE...
or even rewrite it along the lines of the info page:
Usage: chown [OPTION]... NEWSPEC FILE...
and document that NEWSPEC is [OWNER][:[GROUP]]
--=20
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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Subject: bug#15945: chown: Does now allow setting user and users login group with numerical user ID
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On 21/11/13 17:09, Eric Blake wrote:
> But as written, the usage text implies that we can omit both OWNER and
> :GROUP and still have a valid call, as in:
>
> chown /tmp/bla
>
> which isn't quite true. Alas, the only way I can see to rewrite the
> fact that SOME spec is necessary, while still highlighting the GNU
> extension of omitting OWNER, is to split the usage into two lines:
>
> Usage: chown [OPTION]... OWNER[:[GROUP]] FILE...
> or: chown [OPTION]... :GROUP FILE...
>
> Thoughts? Should we reopen this bug to track the doc bug[s]?
>
> Alas, ...
Hehe.
I agree, two lines should be the only way to express that
there are 4 possibilities:
chown OWNER
chown OWNER:
chown OWNER:GROUP
chwon :GROUP
But shouldn't all 4 possibilities allow both OWNER and GROUP to be
specified either as NAME or as numerical ID ?
chown OWNERNAME == chown OWNERID [*]
chown OWNERNAME: == chown OWNERID: [**]
chown OWNERNAME:GROUPNAME == chown OWNERID:GROUPID[*]
chwon :GROUPNAME ==chown :GROUPID [*]
[*] working as expected
[**] NOT working as expected (see my bug report) ... but why ?
Especially as:
chown 1001:mine /tmp/bla
and
chown me:1001 /tmp/bla
works fine!
(with mine == 1001)
Tormen
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Subject: bug#15945: chown: Does now allow setting user and users login group with numerical user ID
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On 21/11/13 17:32, Eric Blake wrote:
> tag 15945 - notabug
> reopen 15945
> thanks
No, thank you :)
> On 11/21/2013 09:24 AM, Tormen wrote:
>
>>>> Leading to:
>>>> chown: invalid spec: `1001:'
>>> Drop the trailing colon.
>> But I want the same effect than
>> chown me: /tmp/bla
> Ooh, you're right. We DO document that:
I started wondering if I missed something extremely obvious here ;)
> Which means my earlier comments aren't quite correct - the existing use
> of [:[GROUP]] in usage text is correct. But I _still_ think we need to
> split into two lines to make it obvious that the argument itself is
> mandatory, as in:
>
> Usage: chown [OPTION]... OWNER[:[GROUP]] FILE...
> or: chown [OPTION]... :[GROUP] FILE...
>
> or even rewrite it along the lines of the info page:
>
> Usage: chown [OPTION]... NEWSPEC FILE...
>
> and document that NEWSPEC is [OWNER][:[GROUP]]
... and mention that either OWNER or GROUP needs to be present ;)
But I prefer the 2 lines ... more concise and allows to quickly grasp
the meaning (IMHO).
Tormen
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On 11/21/2013 09:41 AM, Tormen wrote:
>>> But I want the same effect than
>>> chown me: /tmp/bla
>> Ooh, you're right. We DO document that:
> I started wondering if I missed something extremely obvious here ;)
No, rather _I_ missed that 'chown --help' is (intentionally) not as
comprehensive as 'info coreutils chown' :)
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Libvirt virtualization library http://libvirt.org
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Subject: bug#15945: chown: Does now allow setting user and users login group with numerical user ID
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On 21/11/13 17:44, Eric Blake wrote:
> On 11/21/2013 09:41 AM, Tormen wrote:
>>>> But I want the same effect than
>>>> chown me: /tmp/bla
>>> Ooh, you're right. We DO document that:
>> I started wondering if I missed something extremely obvious here ;)
> No, rather _I_ missed that 'chown --help' is (intentionally) not as
> comprehensive as 'info coreutils chown' :)
>
I wonder how old the bug is (my "bug-hunters pride" talking)...
X-Loop: help-debbugs@HIDDEN
Subject: bug#15945: chown: Does now allow setting user and users login group with numerical user ID
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Eric Blake wrote:
> OWNER':'
> If a colon but no group name follows OWNER, that user is made the
> owner of the files and the group of the files is changed to OWNER's
> login group.
Long ago this was an existing behavior of GNU rm and discussion on the
list talked of removing it. I defended it because I often used this
on various systems to set the default group of a user. Because some
systems are configured with user-private-groups where the user is in a
private group while on other systems the user is in a shared "users"
group. Using 'chown foo: file' was a nice way to set the group to
foo's default group without needing to figure out what that group was
ahead of time. I don't know when it was introduced into GNU chown but
at the least I had been using it extensively.
> so it looks like we have a bug that if OWNER is numeric, we aren't
> looking up OWNER's login group.
Seems that way.
Bob
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Subject: bug#15945: chown: Does now allow setting user and users login group with numerical user ID
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Bob Proulx wrote:
> Long ago this was an existing behavior of GNU rm and discussion on the
s/rm/chown/
Argh! The recent 'rm' discussion clouded my typing. I meant 'chown' there.
Bob
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Subject: bug#15945: chown: Does now allow setting user and users login group with numerical user ID
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Eric Blake <eblake@HIDDEN> writes:
> so it looks like we have a bug that if OWNER is numeric, we aren't
> looking up OWNER's login group.
There may not be a unique uid to user name mapping.
Andreas.
--
Andreas Schwab, schwab@HIDDEN
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X-Loop: help-debbugs@HIDDEN
Subject: bug#15945: chown: Does now allow setting user and users login group with numerical user ID
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On 11/21/2013 10:45 AM, Andreas Schwab wrote:
> Eric Blake <eblake@HIDDEN> writes:
>=20
>> so it looks like we have a bug that if OWNER is numeric, we aren't
>> looking up OWNER's login group.
>=20
> There may not be a unique uid to user name mapping.
Right, but in that case, the error message should make sense. Rather
than being a blanket "invalid spec: `1001:'" it should say something
like "unable to determine default group for user `1001'"
--=20
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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X-Loop: help-debbugs@HIDDEN
Subject: bug#15945: chown: Does now allow setting user and users login group with numerical user ID
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Andreas Schwab wrote:
> Eric Blake writes:
> > so it looks like we have a bug that if OWNER is numeric, we aren't
> > looking up OWNER's login group.
>
> There may not be a unique uid to user name mapping.
I think that anyone using this would expect it would take the first
one returned. The same that happens right now in a "normal" system.
The same name that 'ls -l' would return. We don't worry that 'ls -l'
might be mapping a name that might not be unique and shouldn't here
either.
I realize that 'nscd' breaks that long standing assumption that order
matters by returning one randomly. I consider that a bug in nscd.
Bob
X-Loop: help-debbugs@HIDDEN
Subject: bug#15945: chown: Does now allow setting user and users login group with numerical user ID
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On 21/11/13 18:47, Eric Blake wrote:
> On 11/21/2013 10:45 AM, Andreas Schwab wrote:
>> Eric Blake <eblake@HIDDEN> writes:
>>
>>> so it looks like we have a bug that if OWNER is numeric, we aren't
>>> looking up OWNER's login group.
>> There may not be a unique uid to user name mapping.
Interesting. But I guess the ID (for owner and group) is what is stored
in the filesystem
(as you can rename users and the ID stays the same on the file).
In which case there is no tranlsation (ID -> name) necessary when
calling chown with an uid.
The "ls" then does the lookup to translate the ID in a name then.
And so the ls could run into the mapping problem... or chown if called
with a username.
Or is it the other way round ?
> Right, but in that case, the error message should make sense. Rather
> than being a blanket "invalid spec: `1001:'" it should say something
> like "unable to determine default group for user `1001'"
>
So in no case there should be a mapping problem when using numerical IDs
for users/groups.
Only when called with names.
In any case, in my case the mapping is unique:
grep 1001 /etc/passwd
me:x:1001:1001:This is Me,,,:/home/me:/bin/zsh
:)
Tormen
X-Loop: help-debbugs@HIDDEN
Subject: bug#15945: chown: Does now allow setting user and users login group with numerical user ID
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On 11/21/2013 11:07 AM, Tormen wrote:
>>> There may not be a unique uid to user name mapping.
> Interesting. But I guess the ID (for owner and group) is what is stored=
> in the filesystem
> (as you can rename users and the ID stays the same on the file).
> In which case there is no tranlsation (ID -> name) necessary when
> calling chown with an uid.
> The "ls" then does the lookup to translate the ID in a name then.
> And so the ls could run into the mapping problem... or chown if called=
> with a username.
>=20
> Or is it the other way round ?
No, you have it right - stat() stores only uid, and ls(1) does a name
lookup for printing "the" (more precisely, "a") username associated with
that id.
>> Right, but in that case, the error message should make sense. Rather
>> than being a blanket "invalid spec: `1001:'" it should say something
>> like "unable to determine default group for user `1001'"
>>
> So in no case there should be a mapping problem when using numerical ID=
s
> for users/groups.
> Only when called with names.
Not true - we still have two potential lookup problems. One is that
that there may be NO name associated with ID (ls -l just falls back to
listing id, but in the chmod case, we can't do a default login group
lookup if we don't have a name). Try as root:
# touch /tmp/f
# chown 12345 /tmp/f
# ls -l /tmp/f
-rw-r--r--. 1 12345 root 0 Nov 21 13:51 /tmp/f
The other is that even if a name is associated with an ID (whether the
only name, or whether the first name out of multiple that map to the
id), the default login group lookup for that name may fail (but that's
true even if we didn't first do a uid->name lookup).
Either way, my point remains - we should have a saner error message if
we are unable to determine a default login group for a given user
identification, rather than just declaring the entire '1001:' an invalid
spec.
--=20
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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Subject: bug#15945: chown: Does now allow setting user and users login group with numerical user ID
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Thanks a lot for explaining!!
On 21/11/13 21:53, Eric Blake wrote:
>>> Right, but in that case, the error message should make sense. Rather
>>> than being a blanket "invalid spec: `1001:'" it should say something
>>> like "unable to determine default group for user `1001'"
>>>
>> So in no case there should be a mapping problem when using numerical IDs
>> for users/groups.
>> Only when called with names.
> Not true - we still have two potential lookup problems. One is that
> that there may be NO name associated with ID (ls -l just falls back to
> listing id, but in the chmod case, we can't do a default login group
> lookup if we don't have a name).
Yes of course for the login group lookup needs the name! - Dough.
> Either way, my point remains - we should have a saner error message if
> we are unable to determine a default login group for a given user
> identification, rather than just declaring the entire '1001:' an invalid
> spec.
+1 for the nice error message :)
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