Opened 14 years ago

Last modified 14 years ago

#1036 closed Bug report

File download doesn't stop

Reported by: wisheu Owned by:
Priority: normal Component: FileZilla Client
Keywords: Cc: wisheu, Tim Kosse
Component version: Operating system type:
Operating system version:


Hello everybody,

with the latest FileZilla version on Windows I've
noticed a problem while I was downloading the German
version of the Wikipedia DVD from a download mirror. It
seems that there is a wrap around of an 32 bit variable
because FileZilla keeps downloading over and over. The
GUI reaches 100% but it is still downloading and after
a few hours I had a file of 20 GB on my harddisk.
Please download the following file and test it for
(7.5 GB)

Best regards


Change History (2)

comment:1 Changed 14 years ago by Tim Kosse

FileZilla stores filesizes as 64bit integers, I've
previously tested it with files over 4GB in size and found
no problems.

However, since you provided a link to the file, I could run
some tests with the server. It seems that the server does
not support resume of large files, there is a 32 bit integer
overflow in the server itself.

In the next major version of FileZilla, I'll add a small
test to detect this particular problem.

Please try to download the file from a different mirror.

comment:2 Changed 14 years ago by Tim Kosse

I've implemented a resume check in FileZilla 3.

If you would the file from download from above server and
there's a disconnect in between so FileZilla has to resume,
FileZilla will detect that the server cannot properly resume
the file and abort.

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