considering where the exception occured, i bet this is not a java
security exception (it already passed the security test at that point
and is inside the priviledged code, moreover this is an IOException not
a SecurityException you get). However, there is a bad code inside
UNIXProcess:
IOException e = gate.getException();
if (e != null)
throw new IOException(e.toString());
So you will have to stick a debugger at that point to get the original
exception (eg run tomcat inside eclipse using ad-hoc eclipse plugins,
put a breakpoint inside that address and read the original exception).
Mark HB a écrit :
> Hi,
>
> My apologies for the confusion, but my previous claim to have sorted
> this problem out is now incorrect. It seems with the upgrade to 1.5.0,
> the execution of the external binary does work, --- but only
> sometimes?? ---. I can't seem to work out the exact conditions that it
> works, and seems to be random.
>
>
> Could someone please indicate what I need to add/change in the
> catalina.policy file to allow the execution of external binaries. I've
> had a good look at this url and can't seem to find any indicators.
>
> > http://tomcat.apache.org/tomcat-5.0-doc/security-manager-howto.html
>
> Cheers
> Mark
>
>
> -------------------------------------
>
> Thanks Enrico,
>
> However I seem to have inadvertently solved it. I was updating to the
> latest release of jre and recompiled the servlet with 1.5.0 and now it
> works.
> Previously I was using 1.3.1.
> So there we go.
>
> Cheers
> Mark
>
> Enrico Giurin wrote:
>> Hello,
>> I guess yours is a problem of security manager of tomcat.
>> I think you have to modify some entries of the catalina.policy file.
>> http://tomcat.apache.org/tomcat-5.0-doc/security-manager-howto.html
>>
>>
>> Enrico.
>>
>> ----- Original Message ----- From: "Mark HB"
>> <[EMAIL PROTECTED]>
>> To: <users@tomcat.apache.org>
>> Sent: Tuesday, September 12, 2006 10:16 AM
>> Subject: Executing binary from Servlet
>>
>>
>>> Hi,
>>>
>>> I am looking for some help on a problem I have encountered with
>>> executing a binary from a servlet using Runtime.getRuntime().exec()
>>> The code that I have is simply executing a binary called "cimmsim":
>>>
>>> File theDir = new File(curdir+"WORK/"+rand);
>>> java.lang.String cmdline = theDir+"/cimmsim -f config";
>>> try {
>>> Process p = Runtime.getRuntime().exec(cmdline, null, theDir);
>>> }
>>> catch (IOException e)
>>> { e.printStackTrace(); }
>>>
>>> The error that is produced is:
>>> java.io.IOException: java.io.IOException:
>>> /srv/www/tomcat5/base/webapps/simulator/WORK/yqzatmopa343/cimmsim:
>>> cannot execute
>>> at java.lang.UNIXProcess.<init>(UNIXProcess.java:143)
>>> at java.lang.Runtime.execInternal(Native Method)
>>> at java.lang.Runtime.exec(Runtime.java:566)
>>> at java.lang.Runtime.exec(Runtime.java:428)
>>> at RunSimulation.run(CimmSimServlet.java:655)
>>>
>>> A uname -a on the system gives:
>>> Linux apppx1 2.6.16.13-4-xen #1 SMP Wed May 3 04:53:23 UTC 2006 x86_64
>>> x86_64 x86_64 GNU/Linux
>>> SUSE LINUX 10.1
>>>
>>> I have ensured that the permissions are set to at least 755 and am now
>>> at a bit of a loss.
>>> Any ideas?
>>>
>>> Cheers
>>> Mark
>>>
>>>
>>>
>>> --
>>> ---------------------------------------------------------------------------
>>>
>>> Mark Halling-Brown | Tel: +44-20-7631-6839
>>> Research Associate |
>>> Room 359 | Fax: +44-20-7631-6803
>>> School of Crystallography |
>>> Birkbeck College | Email:
>>> Malet Street | [EMAIL PROTECTED]
>>> London WC1E 7HX | [EMAIL PROTECTED]
>>> UK |
>>> http://people.cryst.bbk.ac.uk/~ghall04
>>> ---------------------------------------------------------------------------
>>>
>>>
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To start a new topic, e-mail: users@tomcat.apache.org
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>>>
>>>
>>>
>>> --
>>> No virus found in this incoming message.
>>> Checked by AVG Free Edition.
>>> Version: 7.1.405 / Virus Database: 268.12.2/443 - Release Date:
>>> 11/09/2006
>>>
>>>
>>
>>
>>
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>
>
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