nanog mailing list archives
RE: interger to I P address
From: "Boyd, Benjamin R" <Benjamin.R.Boyd () windstream com>
Date: Wed, 27 Aug 2008 11:38:27 -0500
The harder way: Decimal: 1089055123 Hex (dashes inserted at octals): 40-E9-A9-93 Decimal (ofeach octet):64-233-169-147 IP Address: 64.233.169.147The Python wayimport socket, struct socket.inet_ntoa(struct.pack('>l', 1089055123))'64.233.169.147'The Perl way: sub ntoa { my $one = shift; my $four = $one & 0xff; $one >>= 8; my $three = $one & 0xff; $one >>= 8; my $two = $one & 0xff; $one >>= 8; return "$one.$two.$three.$four"; } #or in one line, like ipcalc does: sub ntoa_in_one_line { join(".", unpack("CCCC", pack("N", $_[0]))); } print ntoa(1089055123) . "\n"; print ntoa_in_one_line(1089055123) . "\n";
The PHP way: function convertIntegerToIpv4($integer) { $max_value = pow(2,32); //4,294,967,296 $bug_fix = 0; settype($integer, float); if($integer > 2147483647) $bug_fix = 16777216; if(is_numeric($integer)) { if ($integer >= $max_value || $integer < 0) { return ('Not a valid IPv4 integer'); } $ip = (sprintf("%u.%u.%u.%u", $integer / 16777216, (($integer % 16777216) + $bug_fix) / 65536, (($integer % 65536) + $bug_fix / 256) / 256, ($integer % 256) + $bug_fix / 256 / 256 ) ); return($ip); } else { return(''); } } *************************************************************************************** The information contained in this message, including attachments, may contain privileged or confidential information that is intended to be delivered only to the person identified above. If you are not the intended recipient, or the person responsible for delivering this message to the intended recipient, Windstream requests that you immediately notify the sender and asks that you do not read the message or its attachments, and that you delete them without copying or sending them to anyone else.
Current thread:
- Re: interger to I P address, (continued)
- Re: interger to I P address Mohacsi Janos (Aug 28)
- Re: interger to I P address Michael Holstein (Aug 27)
- Re: interger to I P address Gary E. Miller (Aug 27)
- Re: interger to I P address Gary E. Miller (Aug 27)
- Re: interger to I P address James Hess (Aug 27)
- Re: interger to I P address Gary E. Miller (Aug 27)
- RE: interger to I P address Eric Van Tol (Aug 27)
- Re: interger to I P address Aaron Gifford (Aug 27)
- Re: interger to I P address bmanning (Aug 27)
- RE: interger to I P address Joe Blanchard (Aug 27)
- Re: interger to I P address Beat Vontobel (Aug 28)
- RE: interger to I P address Joe Blanchard (Aug 27)
- RE: interger to I P address Boyd, Benjamin R (Aug 27)
- Re: interger to I P address Mike Damm (Aug 27)
- Re: interger to I P address bfeeny (Aug 27)
- Re: interger to I P address Johnny Eriksson (Aug 27)
- Re: interger to I P address Valdis . Kletnieks (Aug 27)
- Re: interger to I P address Randy Bush (Aug 27)
- Re: interger to I P address Mark Newton (Aug 27)
- Re: interger to I P address Rob Austein (Aug 27)
- interger to I P address chartley (Aug 27)
- Re: interger to I P address Joe Greco (Aug 27)
- RE: interger to I P address Darden, Patrick S. (Aug 27)
- Re: interger to I P address Joe Greco (Aug 27)
(Thread continues...)