Re: [Qbittorrent-devel] Download from url problem on Windows

[Peter K. <pee...@us...>]

Op dinsdag 11 december 2007, schreef Chris:
> After some time spent debugging I progressed (a little) on the problem
> concerning downloadFromUrl on Windows.
>
> In fact, the torrent files are downloaded actually on Windows, if I open
> the downloaded torrent file with vim, it looks like a real torrent.
> However, qBittorrent (nor any other bittorrent client) won't open it.
>
> I decided to download the torrent file using firefox this time in order to
> compare the files. When opened with vim, they look identical. However, diff
> says they are different (what we can't actually see the diff because
> torrent files are binaries) and their size is different:
>
> chris@chris-laptop:~/devel/qbittorrent/trunk$ ls -l
> /home/chris/Bureau/*.torrent
> -rw-r--r-- 1 chris chris 18955 2007-12-11 22:39
> /home/chris/Bureau/testGood.torrent
> -rw-r--r-- 1 chris chris 19015 2007-12-11 22:37
> /home/chris/Bureau/test.torrent
>
> Does someone have any idea of the different. To write the torrent files on
> the disk, I use fwrite() standard C function that is supposed to be
> portable. I can't understand why the file downloaded on Linux is good
> although the one downloaded on Windows is not. Maybe We should not use
> fwrite and we should write a function specific to Windows that we are sure
> will do the job correctly. However, I never developped on Windows.
>
> Something strange too is that only binary files fail. RSS is using the same
> download function are RSS feeds are displayed correctly on Windows. Any
> idea is welcome.
>
> Regards,
> Chris.


Hi Chris,

Viewing in a hexeditor reveals that test.torrent has \r\n line endings and 
testGood.torrent has \n line endings. I suspect that you need to tell libcurl 
to always download in binary mode, or turn of any conversion that might be 
going on.

Peter