[Poppler-bugs] [Bug 7903] New: Non-initialized variable and strange behaviour usin streams

[bugzilla-daemon at annarchy.freedesktop.org]

Please do not reply to this email: if you want to comment on the bug, go to    
       
the URL shown below and enter yourcomments there.     
   
https://bugs.freedesktop.org/show_bug.cgi?id=7903          
     
           Summary: Non-initialized variable and strange behaviour usin
                    streams
           Product: poppler
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: general
        AssignedTo: poppler-bugs at lists.freedesktop.org
        ReportedBy: nct at ysagoon.com


Hello,

I would like to make an helper application for indexing pdf articles into a 
bibliographic database. As a first step, I've made a pdf structure dumper 
using popple. In the course of writing it, I've run into some problems. 
Finding how things are supposed to work is not easy because there is no 
documentation on poppler. To get to the report exposed below, I've made 
extensive use of valgrind. If those are not bugs, but missunderstanding from 
my part, please excuse me.

* Non-initialized variable

A stream of type strFile does return a non-NULL dict through getDict(), but 
this dict's length field is a non-initialized variable. 
This leaded me to add the check at line 43 of pdfds.cpp

* Strange addFilters behaviour

Every time I try to get an uncompress substream of a Flate encoded stream 
(lines 58 to 75 of pdfds.cpp), I get "Error (some int here): Unknown 
compression method in flate stream". Yet the dict does have the correct 
parameters and afaik is passed correctly to addFilters. It's perhaps a bug on 
my side, as addFilters does not seem that complex in fdo's cvs, but I can't 
find what.

Thanks a lot, have a nice day,

Steph

P.S. I was using libpoppler version 0.5.3-0ubuntu1 on Ubuntu Dapper          
     
     
--           
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email         
     
------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.