Hi all,
I'm using ulogd with PostgreSQL which stores IP addresses as 32bit
unsigned integers. So when I select some data I get something like:
ulogd=> SELECT id, ip_saddr, ip_daddr, raw_pktlen, ip_totlen, tcp_window
FROM ulog LIMIT 20;
id | ip_saddr | ip_daddr | raw_pktlen | ip_totlen | tcp_window
----+------------+------------+------------+-----------+------------
1 | 3232235874 | 1074534522 | 46 | 46 | 25825
Where 'ip_saddr' and 'ip_daddr' are 'bigint'. I know I can convert
these numbers to dotted-decimal in perl with a small script like:
-=-=-
#!/usr/bin/perl
# This would be the number read from the DB
my $num=3232235874;
# Now do the math
my $temp=$num/256;
my $D=256*($temp-int($temp));
$temp=(int($temp))/256;
my $C=256*($temp-int($temp));
$temp=(int($temp))/256;
my $B=256*($temp-int($temp));
my $A=int($temp);
my $ip="$A.$B.$C.$D";
# Print the results
print "'num': [$num] -> 'IP': [$ip]\n";
-=-=-
What I would like to do is create a function that would do the same
thing so I could read out the IP addresses as standard dotted-decimal
format. Could anyone help me with this? I am quite the n00b when it
comes to functions. :)
Thanks all!
Madi
