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Subject: Re: crontab message "must be privileged to use -u"
To: cygwin@cygwin.com
References: <1575279001.20200318225451@yandex.ru>
 <87a74dtnwa.fsf@Rainer.invalid> <1777191824.20200319000626@yandex.ru>
 <875zf1tka7.fsf@Rainer.invalid>
From: Brian Inglis <Brian.Inglis@SystematicSw.ab.ca>
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Organization: Systematic Software
Message-ID: <da616bfd-93d5-28ff-ccdd-6f9cb0c9803e@SystematicSw.ab.ca>
Date: Wed, 18 Mar 2020 19:25:20 -0600
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On 2020-03-18 15:39, Achim Gratz wrote:
> Andrey Repin writes:
>>>> I'm in an elevated shell, but it seems crontab is doing a dumb POSIX check for
>>>> EUID=0.
>>
>>> Then wrapping it with fakesu should work (no I have not tried that).
>>
>> Cool idea, but I'm not up for recompiling crontab >.>
>> Still, thanks for the reply.
> 
> If you care to look at the package listing you might have noticed that
> there is an actual fakesu binary present that I believe does exactly
> what you were asking.

Installed libfakesu - fakesu just scans source for functions it can fake - it is
undocumented and not obvious how you are meant to run it.
One library function can implement suid/sgid exe permission bits.

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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