<?php
/**
* dumpindex
*
* Dumps all of the records in a blockchain index.
*
* Marty Anstey (https://marty.anstey.ca/)
* August 2015
*
*/
define('_fn', 'blockchain.dat.idx');
if (!file_exists(_fn)) exit("Can't open "._fn);
$fp = fopen(_fn,'rb');
$records = unpack('V', fread($fp, 4))[1];
for ($i=0;$i<$records;$i++) {
$ofs = unpack('V', fread($fp, 4))[1];
$len = unpack('V', fread($fp, 4))[1];
print str_pad($i,5,' ',STR_PAD_RIGHT)."OFS: ".str_pad($ofs,8,' ',STR_PAD_RIGHT)." LEN: $len\n";
}
fclose($fp);
function unpack32($data,$ofs) {
return unpack('V', substr($data,$ofs,4))[1];
}
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