On Dec 29, 2013, at 3:41 AM, Guy Harris <guy@xxxxxxxxxxxx> wrote:
> So it's more like "it might, or might not, be possible to read from a pipe here, depending on the file type and the contents of the file".
Note also that there are file formats that *cannot* be read from a pipe, as even reading the file once, from the first packet to the last, requires seeking forward and then backward. This includes "NetXRay" format (as used by the old network analyzer of the same name, as well as by the Windows Sniffer applications) and Network Monitor format.