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Message-ID:	<445C57B81208C24EAD99F2944DBB9D29030212F8@BLNSS10A>
From:	Klein Andre ICM N AS PD B 3 <andre DOT klein AT siemens DOT com>
To:	"'cygwin AT cygwin DOT com'" <cygwin AT cygwin DOT com>
Subject:	RE: Cygwin/bash: need environment variables >32K
Date:	Wed, 22 Oct 2003 13:16:21 +0200
MIME-Version:	1.0
Note-from-DJ:	This may be spam

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Thanks for your answer!

I've tried to make the example more simple (s. attachments).
It sets a long environment variable and simply invokes the
cygwin rm executable afterwards...

I open a DOS box and invoke the example with
>bash run.sh

Following problems arise in my environment:
(a) environment variable with 30K 
	run.sh: line 9: /usr/bin/rm: Resource temporarily unavailable
(b) environment variable with 100K
	run.sh: line 9: /usr/bin/rm: Invalid argument
(c) environment variable with 20K
	rm works fine

So this clearly shows, that the length of my environment variable
affects the execution of the cygwin "rm" executable.

I hope you can reproduce this in your environment?!
Is there any way to avoid these problems?
Unfortunately we need such long variables...

Andre


-----Original Message-----
From: Corinna Vinschen [mailto:corinna-cygwin AT cygwin DOT com]
Sent: Mittwoch, 22. Oktober 2003 12:01
To: 'cygwin AT cygwin DOT com'
Subject: Re: Cygwin/bash: need environment variables >32K


On Wed, Oct 22, 2003 at 11:30:54AM +0200, Klein Andre ICM N AS PD B 3 wrote:
> I need to set a very long environment variable CLASSPATH within Cygwin
bash.
> But there seems to be an upper limit of 32K for environment variables!?!?
> 
> Is there any way to increase this upper limit?
> 
> I have attached 2 small files for demonstrating the problem.
> Start run.sh and the invocation of the executable (java) failes...

It's not the length of the environment variable which is the problem,
it's the way the application is called.  java is a native windows
application and on process creation, the windows command line can not
exceed 32K.  Does java not support the CLASSPATH environment variable?
Do you need to give it as argument explicitely?

Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Developer                                mailto:cygwin AT cygwin DOT com
Red Hat, Inc.

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	name="run.sh"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
	filename="run.sh"

# Set environment and invoke "rm".=0A=
# This causes various failures, depending on length of CLASSPATH.=0A=
=0A=
. ./setClasspath.sh=0A=
=0A=
#echo $CLASSPATH=0A=
=0A=
echo "proceed after setClasspath ..."=0A=
rm -f /tmp/xxx=0A=
echo "rm finished"=0A=

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	name="setClasspath.sh"
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	filename="setClasspath.sh"

# Set a long environment variable CLASSPATH.=0A=
=0A=
CLASSPATH=3D=0A=
LINE=3Dxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx=0A=
=0A=
# 10K=0A=
#NUMBERS=3D"1"=0A=
=0A=
# 20K=0A=
#NUMBERS=3D"1 2"=0A=
=0A=
# 30K=0A=
NUMBERS=3D"1 2 3"=0A=
=0A=
# 100K=0A=
#NUMBERS=3D"1 2 3 4 5 6 7 8 9 10"=0A=
=0A=
for n in $NUMBERS ; do=0A=
    CLASSPATH=3D${CLASSPATH}";$LINE"=0A=
    CLASSPATH=3D${CLASSPATH}";$LINE"=0A=
    CLASSPATH=3D${CLASSPATH}";$LINE"=0A=
    CLASSPATH=3D${CLASSPATH}";$LINE"=0A=
    CLASSPATH=3D${CLASSPATH}";$LINE"=0A=
    CLASSPATH=3D${CLASSPATH}";$LINE"=0A=
    CLASSPATH=3D${CLASSPATH}";$LINE"=0A=
    CLASSPATH=3D${CLASSPATH}";$LINE"=0A=
    CLASSPATH=3D${CLASSPATH}";$LINE"=0A=
    CLASSPATH=3D${CLASSPATH}";$LINE"=0A=
done=0A=
=0A=
export CLASSPATH=0A=


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