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Bug #18744 blob_add has max limit of 64k
Submitted: 2002-08-05 14:42 UTC Modified: 2003-08-16 11:07 UTC
From: cheald45 at hotmail dot com Assigned:
Status: Closed Package: InterBase related
PHP Version: 4.2.2 OS: Redhat 7.3
Private report: No CVE-ID: None
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From: cheald45 at hotmail dot com
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 [2002-08-05 14:42 UTC] cheald45 at hotmail dot com 
The ibase_blob_add functionality wraps the Interbase blob add functionality, which will only allow up to 64k of data to be added at any one time dut to an unsigned short variable. This means that if a chunk of data is > than 64k, you have to split it into < 64k chunks and run multiple adds. While this is not a problem, it seems that this functionality would be better used in the actual PHP source. It shouldn't be too hard a fix - just split the incoming string into < 64k chunks and run the add in a loop.

For example, we discovered that a 145k string was being truncated by the ibase_blob_add function. At the very least, the ibase_blob_add function should throw a warning if the data is > 64k.

This 64k limit is not documented, and has been a source of much confusion. It would be very helpful if this change were implemented.

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 [2002-12-04 22:52 UTC] sniper@php.net 
Please try using this CVS snapshot:

  http://snaps.php.net/php4-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php4-win32-latest.zip
 [2002-12-20 01:00 UTC] php-bugs at lists dot php dot net 
No feedback was provided for this bug for over 2 weeks, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".
 [2003-08-16 11:07 UTC] abies@php.net 
This bug has been fixed in CVS.

In case this was a PHP problem, snapshots of the sources are packaged
every three hours; this change will be in the next snapshot. You can
grab the snapshot at http://snaps.php.net/.
 
In case this was a documentation problem, the fix will show up soon at
http://www.php.net/manual/.

In case this was a PHP.net website problem, the change will show
up on the PHP.net site and on the mirror sites in short time.
 
Thank you for the report, and for helping us make PHP better.
 
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