I've written a small script which uses a module called Config.pm to read a set of global constants as config file parameters. (Why invent a new config file syntax when you can use what PERL already provides, right?). This works fine. But I want the config file constants available to all the modules in my application. But I can't get this to work.
My config module, Audit::Config.pm follows:
# full path to hosts file
use constant HOSTS_FILE => '/home/csssec/audit/css_hosts.txt';
# full path to local host binary
use constant HOST_BIN => '/usr/bin/host';
...
1;
Here's the script I'm using to test:
#!/usr/bin/perl -w
use strict;
use Audit::Config;
use Check::DNSCheck;
# for every host in the hosts file
open(FILE, HOSTS_FILE) || die("$!\n");
while (<FILE>) {
chomp($_);
my $host = $_;
next if ($host =~ /^(\s*)#/);
my $chk = new DNSCheck($host);
$chk->run();
}
close(FILE);
I want Check::DNSCheck to be able to access the constants in Audit::Config as well. I've gotten this to work in a non-OO context. But I changed Check::DNSCheck to be an OO style module (with new{} sub etc) and I could no longer access the constants in Audit::Config.
Check::DNSCheck code follows:
package DNSCheck;
use Audit::Config;
use strict;
sub new
{
my $class = shift;
my $host = shift;
my $this =
{
host => $host,
};
bless ($this, $class);
}
sub run
{
my $this = shift;
my $cmd = HOST_BIN . " $this->{'host'} 2>/dev/null";
my $r = `$cmd`;
if ($r !~ /has address/)
{
return(0);
}
return(1);
}
1;
Running gives the following error:
Bareword "HOST_BIN" not allowed while "strict subs" in use at Check/DN
+SCheck.pm line 30.
Compilation failed in require at ./audit.pl line 6.
BEGIN failed--compilation aborted at ./audit.pl line 6.
So Check::DnsCheck.pm obviously insn't importing the values in Audit::Config.pm, but I'm not sure why.
Some insight in this would be greatly appreciated.
Is there a better way to go about this?
Thanks
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