From:             
Operating system: Linux
PHP version:      5.3.2
Package:          Streams related
Bug Type:         Bug
Bug description:fseek($fp, 0, SEEK_CUR) generates needless warning when seeking 
isn't supported

Description:
------------
This is such a minor "bug" which can easily be fixed with one minor
change.



The bzip stream for example, does not support seeking, however this is an 

"emulation" in main/streams/streams.c that allows the SEEK_CUR to work with


positive values by just continue to read for the seek duration.



The bug is if you use SEEK_CUR with a value of zero, a warning pops up
saying 

seek is not supported. I know using a value of zero is perhaps wrong, but
by 

changing line 1150 of main/streams/streams.c from:



if (whence == SEEK_CUR && offset > 0) {

to:

if (whence == SEEK_CUR && offset >= 0) {



then this warning does not appear, and everything works as expected.



I have not tested this change, but it looks innocent enough. Until then I'm


writing my PHP code with a if ($offset > 0) fseek($fp, $offset, SEEK_CUR);



thanks.


-- 
Edit bug report at http://bugs.php.net/bug.php?id=51997&edit=1
-- 
Try a snapshot (PHP 5.2):            
http://bugs.php.net/fix.php?id=51997&r=trysnapshot52
Try a snapshot (PHP 5.3):            
http://bugs.php.net/fix.php?id=51997&r=trysnapshot53
Try a snapshot (trunk):              
http://bugs.php.net/fix.php?id=51997&r=trysnapshottrunk
Fixed in SVN:                        
http://bugs.php.net/fix.php?id=51997&r=fixed
Fixed in SVN and need be documented: 
http://bugs.php.net/fix.php?id=51997&r=needdocs
Fixed in release:                    
http://bugs.php.net/fix.php?id=51997&r=alreadyfixed
Need backtrace:                      
http://bugs.php.net/fix.php?id=51997&r=needtrace
Need Reproduce Script:               
http://bugs.php.net/fix.php?id=51997&r=needscript
Try newer version:                   
http://bugs.php.net/fix.php?id=51997&r=oldversion
Not developer issue:                 
http://bugs.php.net/fix.php?id=51997&r=support
Expected behavior:                   
http://bugs.php.net/fix.php?id=51997&r=notwrong
Not enough info:                     
http://bugs.php.net/fix.php?id=51997&r=notenoughinfo
Submitted twice:                     
http://bugs.php.net/fix.php?id=51997&r=submittedtwice
register_globals:                    
http://bugs.php.net/fix.php?id=51997&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=51997&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=51997&r=dst
IIS Stability:                       
http://bugs.php.net/fix.php?id=51997&r=isapi
Install GNU Sed:                     
http://bugs.php.net/fix.php?id=51997&r=gnused
Floating point limitations:          
http://bugs.php.net/fix.php?id=51997&r=float
No Zend Extensions:                  
http://bugs.php.net/fix.php?id=51997&r=nozend
MySQL Configuration Error:           
http://bugs.php.net/fix.php?id=51997&r=mysqlcfg

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