Hi,
I've had this problem before, but never got to the bottom of it.
I'm cursed with a situation in which I need to run some .exe file from a
(mod)perl script. The program concerned is a console application so it
just writes its output on STDOUT. I need to re-direct that output to a
temporary file, and then read the file in to process in the perl script.
Sounds simple enough, and it works fine running Apache without
mod_perl. But as soon as I put mod_perl into the equation I find that I
can't re-direct STDOUT in the system() call. The following script
illustrates the problem:
print "Content-Type: text/html\n\n";
$status = system "D:\\WINNT\\system32\\ipconfig.exe >
D:\\Temp\\ip.txt";
print "The system() call exited with status $status.\n";
Without mod_perl this works fine: "ip.txt" is created and $status is 0.
But with mod_perl "ip.txt" is not created, $status is 256 and the
following line appears in error.log:
The handle could not be opened
during redirection of handle 1.
Can anyone help?
My setup is as follows:
- NT 4 Workstation, Service Pack 6
- Perl 5.005_03 built with VC++ 6 and the Makefile options:
CFG = Optimize
USE_PERLCRT
PERL_MALLOC
- Apache 1.3.12 built with VC++ 6
- mod_perl 1.22 built with VC++ 6
- D: is a local disk which I have full access to
I've found that the problem goes away if I downgrade to Apache 1.3.6 and
keep everything else the same!
Steve Hay
