From: laacz at laacz dot lv
Operating system: 6.1-STABLE FreeBSD (amd64)
PHP version: 5.2.9
PHP Bug Type: Strings related
Bug description: unpacking unsigned long 32bit bit endian returns wrong result
Description:
------------
Unpacking unsigned long (32bit; always big endian; "N") on 64bit
system returns 64bit signed int instead of 32bit.
You can do & 0xffffffff on unpacked value, and get desired result,
but that's still a bug.
Reproduce code:
---------------
<?php
list(,$command_id) = unpack('N', chr(0x80) . chr(0x00) . chr(0x00) .
chr(0x09));
echo hexdec(dechex($command_id)) . "\n0x" . dechex($command_id) . "\n";
?>
Expected result:
----------------
2147483657
0x80000009
Actual result:
--------------
1.8446744071562E+19
0xffffffff80000009
--
Edit bug report at http://bugs.php.net/?id=47564&edit=1
--
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=47564&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=47564&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=47564&r=trysnapshot60
Fixed in CVS:
http://bugs.php.net/fix.php?id=47564&r=fixedcvs
Fixed in CVS and need be documented:
http://bugs.php.net/fix.php?id=47564&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=47564&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=47564&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=47564&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=47564&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=47564&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=47564&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=47564&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=47564&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=47564&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=47564&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=47564&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=47564&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=47564&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=47564&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=47564&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=47564&r=mysqlcfg
