On 10/04/2014 01:04 AM, Orion Poplawski wrote:
On 10/03/2014 03:55 PM, Orion Poplawski wrote:
On 10/03/2014 02:34 PM, Matthew Miller wrote:
On Fri, Oct 03, 2014 at 02:29:53PM -0600, Orion Poplawski wrote:
Is it worth considering using Dash as the default (non-interactive)
shell in Fedora? Other distributions including Ubuntu and Debian
(https://lwn.net/Articles/343924/) have been using dash as the default
shell and Android uses mksh. While this appears to have been done
primary to increase bootup efficiency (which is not relevant with
systemd), it might help with security
More bashism's in .spec files:
+ pushd src
/tmp/rpm/rpm-tmp.047Jay: 43: /tmp/rpm/rpm-tmp.047Jay: pushd: not found
All the other things aside, I think it'd be fine for us to leave bash
as the
shell for spec file scripts even if we changed /bin/sh and/or the root
shell.
Yeah, I'm wondering if an rpm bug is in order here now to explicitly use
/bin/bash.
http://rpm.org/ticket/877
Been there, see https://bugzilla.redhat.com/show_bug.cgi?id=850706.
"Shell correctness" is simple: either avoid bashisms in scriptlets or
explicitly set -p /bin/bash as the interpreter. Oh and remove this from
the guidelines:
https://fedoraproject.org/wiki/Packaging:ScriptletSnippets#Default_Shell
I'm sure rpmlint can (be made to) check for bashisms...
- Panu -
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