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Bug #568 pg_loreadall does not output all of the data
Submitted: 1998-07-22 09:45 UTC Modified: 1998-07-30 19:05 UTC
From: scott at elysium dot demon dot co dot uk Assigned: jah (profile)
Status: Closed Package: PostgreSQL related
PHP Version: 3.0.2 OS: Linux 2.0
Private report: No CVE-ID: None
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 [1998-07-22 09:45 UTC] scott at elysium dot demon dot co dot uk 
We have a jpeg image stored in a Large Object field in PostgreSQL, using pg_loreadall to access this and output it to the web browser does not work correctly - an incomplete jpeg file is produced.

Using pg_loread in a loop however works fine.

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 [1998-07-30 19:05 UTC] jah 
Real fix not known. Code seems to be alright. However, something strange
is happening at least with Linuxes if compiled with gcc 2.7.x, gcc 2.8.x or
egcs 1.0.x if optimizations are turned on.

A workaround is to declare nbytes as volatile int in pgsql.c, function
php3_pgsql_lo_readall. 

Fix committed to CVS.
 
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