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Date: Wed, 11 May 2005 11:40:36 -0400
From: Christopher Faylor <cgf-no-personal-reply-please AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Fixing strace and cygcheck so that they work with mount -X
Message-ID: <20050511154036.GD10119@trixie.casa.cgf.cx>
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On Wed, May 11, 2005 at 05:30:11PM +0200, Michael Schaap wrote:
>On 10-May-2005 17:17, Christopher Faylor wrote:
>
>>On Mon, May 09, 2005 at 09:19:14PM +0200, Michael Schaap wrote:
>>  
>>
>>>On 9-May-2005 19:22, David Rothenberger wrote:
>>>
>>>    
>>>
>>>>Does cygstart also need to be fixed? I've found that it doesn't
>>>>propagate the full Cygwin environment when /bin is mounted in cygexec
>>>>mode.
>>>>
>>>>% cygstart -- /bin/rxvt -e bash -c "'env; read x'"
>>>>
>>>>prints out a small set of environment variables when /bin is mounted
>>>>in cygexec. When /bin is mounted normally, it gets the full environment.
>>>>      
>>>>
>>>Well, cygstart is a proper Cygwin executable. However, it does use a
>>>Windows API call (ShellExecute, see "cygstart --reference") to execute
>>>whatever needs to be started, so I can see how it might depend on a
>>>properly synchronized Windows environment.
>>>
>>>If anyone can tell me how to do this, I'll be happy to make the change
>>>to cygstart.
>>>    
>>>
>>
>>This shows what I did to cygcheck:
>>
>>http://sources.redhat.com/cgi-bin/cvsweb.cgi/winsup/utils/cygcheck.cc.diff?cvsroot=uberbaum&r1=1.65&r2=1.66
>>
>>It's possible that the environment code may just work.  Otherwise,
>>you'll have to grab the environment from cygwin and build a new
>>environment block, I assume.
>>
>>  
>>
>Well, I gave it a try, but no success.
>Since cygstart is a proper Cygwin executable, and cygcheck a normal
>Windows one, the code needs to be quite different.

It sounds like you need to read MSDN on CreateProcess and see what it says
about "lpEnvironment":

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dllproc/base/createprocess.asp

cgf

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