Path: csiph.com!optima2.xanadu-bbs.net!xanadu-bbs.net!news.glorb.com!usenet.stanford.edu!not-for-mail From: Chet Ramey Newsgroups: gnu.bash.bug Subject: Re: rewriting a readonly var should exit Date: Tue, 15 Dec 2015 09:29:17 -0500 Lines: 37 Approved: bug-bash@gnu.org Message-ID: References: <566FF580.2060508@gandi.net> Reply-To: chet.ramey@case.edu NNTP-Posting-Host: lists.gnu.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Trace: usenet.stanford.edu 1450189768 28552 208.118.235.17 (15 Dec 2015 14:29:28 GMT) X-Complaints-To: action@cs.stanford.edu Cc: chet.ramey@case.edu To: Aurelien ROUGEMONT , bug-bash@gnu.org, bash@packages.debian.org Envelope-to: bug-bash@gnu.org User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 In-Reply-To: <566FF580.2060508@gandi.net> X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020203.567023BD.0188,ss=1,re=0.000,fgs=0, ip=0.0.0.0, so=2015-08-12 04:07:17, dmn=2011-05-27 18:58:46 X-Mirapoint-Loop-Id: 48e9b7ac30281faa60cdb980cd66a401 X-Junkmail-Whitelist: YES (by domain whitelist at mpv2-2015.case.edu) X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020206.567023BE.02B8,ss=1,re=0.000,fgs=0, ip=0.0.0.0, so=2015-08-12 04:07:17, dmn=2011-05-27 18:58:46 X-Mirapoint-Loop-Id: 66eb0ccc758cededf54a999ffdcf1183 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] [fuzzy] X-Received-From: 129.22.103.227 X-BeenThere: bug-bash@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Bug reports for the GNU Bourne Again SHell List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Xref: csiph.com gnu.bash.bug:12021 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 12/15/15 6:12 AM, Aurelien ROUGEMONT wrote: > Bash Version: 4.3 > Patch Level: 30 > Release Status: release > > Description: > in the posix shell specification [1] when a script tries to to > overwrite a readonly variable it should crash the script. > > Repeat-By: > #!/bin/bash > readonly rovar="goodvalue" > rovar="badvalue" > echo "You should not see this message" > > Fix: > the bash interpreter should exit when the readonly var is being asked > for an overwrite The shell exits in this case when it is running in Posix mode. - -- ``The lyf so short, the craft so long to lerne.'' - Chaucer ``Ars longa, vita brevis'' - Hippocrates Chet Ramey, ITS, CWRU chet@case.edu http://cnswww.cns.cwru.edu/~chet/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEARECAAYFAlZwI7IACgkQu1hp8GTqdKsyxACgk42MVS+jQeKSxZ6IoKQu0yaZ ZDoAn3HrbC7JYivv3fOIS1akKf2XNFkh =18vR -----END PGP SIGNATURE-----