Bug#639825: Apache2 seek broken

[Stefan Fritsch <sf@sfritsch.de>]

On Monday 05 September 2011, Takis Issaris wrote:
> 2011/9/2 Julien Cristau <jcristau@debian.org>:
> > On Wed, Aug 31, 2011 at 16:03:47 +0200, Takis Issaris wrote:
> > 
> > [...]
> > 
> >> Then the log shows these syscalls happening over and over again
> >> and it doesn't stop until I kill the client.
> >> poll([{fd=37, events=POLLIN}], 1, 100)  = 1 ([{fd=37,
> >> revents=POLLIN}]) recvfrom(37, "", 32516, 0, NULL, NULL)  = 0
> >> poll([{fd=37, events=POLLIN}], 1, 100)  = 1 ([{fd=37,
> >> revents=POLLIN}]) recvfrom(37, "", 32516, 0, NULL, NULL)  = 0
> >> ...
> > 
> > That seems completely broken.  When recvfrom returns 0, it means
> > the connection has been shutdown on the other end, the client
> > should just close it at that point, not start an infinite
> > loop...
> 
> I just noticed Stefan's fix in the FFmpeg GIT repository, so that's
> even better:
> http://git.videolan.org/?p=ffmpeg.git;a=commit;h=346ea9e22240b4442
> f479518f6c3b40c9bec9487

This fixes only the detection of range support. The looping is a 
different bug in libavformat which is not fixed by the above commit. 
But maybe it is not triggered if range support works.