From:             
Operating system: Windows 7
PHP version:      5.3.6
Package:          Filesystem function related
Bug Type:         Feature/Change Request
Bug description:fseek inconsistencies with large (>2GB) files

Description:
------------
Firstly, I'm aware that fseek/ftell doesn't necessarily work correctly with
>2GB files with 32-bit PHP due to integer range constraints, however, fseek
operates rather inconsistently when passing 2GB, which would be nice if
fixed (note that I've put this as a feature request, as it's a nice to
have, and unsure if you'd classify this as a bug).



I'm using the 32-bit Windows build from here:
http://windows.php.net/download/



See example script [ http://pastebin.com/Zb0vRgWX ] with comments for more
info.

I haven't looked at PHP's source code, but from the behaviour of the
script, I'm guessing that fseek does some checks, and because it's
overflowing, it won't allow certain operations.  I'm not sure about the
weird 8192 byte limit though.

As fread allows overflows, would it be possible to allow fseek to overflow
too?



(PS first time I've submitted a "bug" - I hope I've done it correctly >_>)


-- 
Edit bug report at http://bugs.php.net/bug.php?id=54902&edit=1
-- 
Try a snapshot (PHP 5.2):            
http://bugs.php.net/fix.php?id=54902&r=trysnapshot52
Try a snapshot (PHP 5.3):            
http://bugs.php.net/fix.php?id=54902&r=trysnapshot53
Try a snapshot (trunk):              
http://bugs.php.net/fix.php?id=54902&r=trysnapshottrunk
Fixed in SVN:                        
http://bugs.php.net/fix.php?id=54902&r=fixed
Fixed in SVN and need be documented: 
http://bugs.php.net/fix.php?id=54902&r=needdocs
Fixed in release:                    
http://bugs.php.net/fix.php?id=54902&r=alreadyfixed
Need backtrace:                      
http://bugs.php.net/fix.php?id=54902&r=needtrace
Need Reproduce Script:               
http://bugs.php.net/fix.php?id=54902&r=needscript
Try newer version:                   
http://bugs.php.net/fix.php?id=54902&r=oldversion
Not developer issue:                 
http://bugs.php.net/fix.php?id=54902&r=support
Expected behavior:                   
http://bugs.php.net/fix.php?id=54902&r=notwrong
Not enough info:                     
http://bugs.php.net/fix.php?id=54902&r=notenoughinfo
Submitted twice:                     
http://bugs.php.net/fix.php?id=54902&r=submittedtwice
register_globals:                    
http://bugs.php.net/fix.php?id=54902&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=54902&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=54902&r=dst
IIS Stability:                       
http://bugs.php.net/fix.php?id=54902&r=isapi
Install GNU Sed:                     
http://bugs.php.net/fix.php?id=54902&r=gnused
Floating point limitations:          
http://bugs.php.net/fix.php?id=54902&r=float
No Zend Extensions:                  
http://bugs.php.net/fix.php?id=54902&r=nozend
MySQL Configuration Error:           
http://bugs.php.net/fix.php?id=54902&r=mysqlcfg

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