Re: [libmicrohttpd] libmicrohttpd running into indefinite loops

[Alexander Couzens]

On Sat, 26 Nov 2016 15:30:28 +0300
Evgeny Grin <address@hidden> wrote:

> Looks like you are sending 4GiB-1 file on 32bit OS and sendfile failed
> as mmap operations are not supported on such file.
> Fallback to ordinal read()/send() should be fixed in
> b3f1a958ce613f304234ecb6506976db26c117dc.
> Could you retry with latest git version?
Sorry, I couldn't do that, because I'vn't found a way to reproduce
it in the same environment, but I found some part of the problem.

nodogsplash is giving a fd of a directory to libmicrohttpd and lseek()
was used to define the size of the file without checking the return
value resulting in the size = 4GiB-1.

But anyway, mmap on a directory doesn't look like a good idea.

On my working machine a simple test is not going into a indef loop.
Passing a directory resulting in a direct close of the connection (no
headers, no data).

Best
lynxis
-- 
Alexander Couzens

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