Message-ID: <1352451558.7009.YahooMailNeo@web133201.mail.ir2.yahoo.com>
Date: Fri, 9 Nov 2012 08:59:18 +0000 (GMT)
From: Laurent Cocault <laurent_cocault AT yahoo DOT fr>
Reply-To: Laurent Cocault <laurent_cocault AT yahoo DOT fr>
Subject: Problem with setuid/execv on Cygwin/Windows 7
To: "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
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Hi Cygwin community,

I am currently facing a problem with the combination of setuid/execv on a C=
ygwin/Windows 7.

Here is the description of my configuration :
* Cygwin 1.7.17
* Windows 7 Pro (64 bits) - Service Pack 1
* Compilation (no option) and execution of a sample program using an admin =
account having the following privileges :
=A0 - SeCreateTokenPrivilege
=A0 - SeAssignPrimaryTokenPrivilege
=A0 - SeTcbPrivilege
=A0 - SeIncreaseQuotaPrivilege
=A0 - SeRestorePrivilege
=A0 - SeServiceLogonRight
=A0 - SeBatchLogonRight

See attachment for the source code of the program.

An exemple of the observed output is the following :

=A0 Parent / My child is 2380
=A0 setuid returns 0
=A0 Child exited with status 32512 and word 2380
=A0 exited, status=3D127

The file /tmp/test.touched has not been created.

When executing the same code on an older configuration (Cygwin 1.5.25 / Win=
dows XP Pro 2002 SP 2), the program runs correctly and produces the followi=
ng output :

=A0 Parent / My child is 1616
=A0 setuid returns 0
=A0 Child exited with status 6912 and word 1616
=A0 exited, status=3D27

The file /tmp/test.touched has effectively been created.

Thanks for your help,
Laurent COCAULT
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