Re: [Boost-users] [iostreams] Error-handling with filters

From: Paul Giaccone (paulg_at_[hidden])
Date: 2006-01-23 04:36:58

Paul Giaccone wrote:

>Paul Giaccone wrote:
>  
>
>>How can you deal with a corrupt file when using filters?
>>
>>This works fine if the file is as is required, but if it is corrupted in 
>>any way, the program either hangs or crashes at
>>
>>  if (s->strm != strm) return BZ_PARAM_ERROR;
>>
>>in bzlib.c, with s as a pointer that cannot be read (set to 0xcdcdcdcd).
>>    
>>
>So how can I catch a problem at the bzip2 stage?
>  
>

Is this a bug in the bzip library or in boost::iostreams?  The crash is 
in BZ_API() (), which comes from from bzip.c.  This function is being 
called from bzip2_base::end(), which is part of the boost::iostreams 
library.

If someone would like to test this, I can provide the file that causes 
the problem.  I'd like to know whether I should be posting this problem 
to the makers of bzip instead.

Thanks.