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Re: wget postinstall and setup (MAXB please take note)
On Thu, Jan 27, 2005 at 02:07:13PM -0500, Pierre A. Humblet wrote:
>
>Christopher Faylor wrote:
>>
>> On Thu, Jan 27, 2005 at 01:31:01PM -0500, Pierre A. Humblet wrote:
>> >The wget postinstall is doing a cp. As discussed earlier, a cp does
>> >not preserve the ACL and any cp done in a postinstall script must be
>> >accompanied by a "touch" to create the new file before copying unto it
>> >(see e.g. as in man.sh), or a "chmod" to set reasonable permissions
>> >after the copying (e.g. as in openldap.sh). If that's not done, the
>> >user may end up having unreadable files. Sorry I didn't notice that
>> >earlier.
>>
>> Wouldt "cp -p" not do the right thing in this case?
>
>Nope. The issue (there is an old thread) is that the relevant access
>rights in the original file are in special acl entries, not in
>owner/group/world. Unix tools don't copy them.
>With nontsec, the script uses the Windows default, which is always
>OK (see below).
>
>Using install -m would work, but it's again imposing a constraint
>on all maintainers. Another drawback of {touch, chmod, install}
>is that you end up with file permissions that are different from
>the files installed by setup, possibly leading to problems during
>uninstall.
>There is no drawback using nontsec because that's how all other
>files were installed in the first place.
maxb -- can we consider this a needed urgent fix? This is a
long-standing problem which is causing people a lot of problems.
cgf