Re: listing all devs

[Guy Harris <guy () netapp com>]

On Mon, May 12, 2003 at 09:14:11AM +0200, Fulvio Risso wrote:
> >  List all capture files in dir: tcpdump -i file://dir/?
>
> This is actually unsupported. It should be a good suggestion.

> However, this is a pain from the implementation point of view, since
> file listing is platform independent.

(Presumably you meant "platform dependent".)

> SO, your code will have tons of
> "#define" and this is something I would like to avoid (basically because
> I'm using only Win32, Linux and BSD, and I'm not able to implement and
> test the code on other platforms).

Any UNIX so old as not to have "readdir()" isn't likely to be
interesting for libpcap, so all you have to worry about is Win32 and
UNIX.

However, the problem then is that to list all capture files you'd have
to try to open *all* files in the directory and see which ones are
libpcap-format files - at least on UNIX, there's no guarantee that you
can determine the file type based purely on the file extension, and, as
you can move files between UNIX and Windows, there's really no such
guarantee on Windows, either.
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