I was trying send query to manage.cmd file to get a list of the pools.
(using xml command <nssRequest><pool><listPools></pool></nssRequest>)
I am getting only partial reply being:
escription>zOK</description></result>
</nssReply>

Here is Perl code I used:

open(VIRTFILE, "+</_admin/Manage_NSS/manage.cmd") or die "Error
opening /_admin/Manage_NSS/manage.cmd";
$command = "<virtualIO><datastream name=\"command\"/></virtualIO>";
syswrite VIRTFILE, $command, length($command);
$buf = "<nssRequest><pool><listPools></pool></nssRequest>";
syswrite VIRTFILE, $buf, length($buf);
$bytesRead = sysread VIRTFILE, $result, 100;
print "Reply size is $bytesRead \n";
print("$result");
close(VIRTFILE);