The problem is:

A function is to take a string containing an IP address, such as "192.168.11.5 <http://192.168.11.5/> ". Once it verifies that there's an IP address in the string, the function must produce and return a 32-bit integer representation. 

   $test1 = quadToInt("192.168.11.5 <http://192.168.11.5/> ");    
   # $test1 would contain 3232238341.

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The only way I know to get the representation is to use pack after replacing the '.'s with some numeric value like '0' i.e 

# generate and return 32-bit integer representation of IP address
$IPaddr =~ s/\./0/g;   
my $rep32bit = pack('N', "$IPaddr"); # unsigned long in 'network order
+'

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This returns 4294967295.
Question: how to get '3232238341' ?
Is there some other way in Perl to produce the 32-bit integer representation besides packing?

Edit: g0n - code tags and formatting

In reply to Representing a 32-bit integer by blankdon

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