Ethereal-users: Re: [Ethereal-users] tethereal performance questions

Note: This archive is from the project's previous web site, ethereal.com. This list is no longer active.

From: Joe Elliott <joe@xxxxxxxxx>
Date: Wed, 19 Oct 2005 09:57:20 -0700 (PDT)
Hello Joerg,
	Thats a great idea, also it could assume that STDIN = pcap format,
since thats the native packaging.

Joe.

-- 
                                          __o       _~o       __o
           "Know your Network"           `\<,      `\<,      `\<,
 ______________________________________(*)/_(*)__(*)/_(*)__(*)/_(*)________
 Im a 21st Century Digital Boy ... I aint got a life, but I got lotsa toys.
 *************** Joe Elliott  joe@xxxxxxxxx  AOL:xqos  ********************
 -   NetContExt  - sniffer trace forensics - tcp follow stream analysis   - 
 -  Extract data files and Images from tcpdump & ethereal packet payloads -
        Inetd.Com Network analysis solutions http://www.inetd.com
 --------------------------------------------------------------------------


On Wed, 19 Oct 2005, Joerg Mayer wrote:

> Date: Wed, 19 Oct 2005 18:53:42 +0200
> From: Joerg Mayer <jmayer@xxxxxxxxx>
> Reply-To: Ethereal user support <ethereal-users@xxxxxxxxxxxx>
> To: Ethereal user support <ethereal-users@xxxxxxxxxxxx>
> Subject: Re: [Ethereal-users] tethereal performance questions
> 
> On Wed, Oct 19, 2005 at 12:32:03AM -0700, Guy Harris wrote:
> > >Can the developers put the '-r -' functionality in?
> > 
> > Not very conveniently.  Tcpdump reads fewer types of capture files than 
> > does Tethereal; Tethereal's capture-file-reading library (the same one 
> > as Ethereal) determines the file type (and some other characteristics of 
> > the file) by trying to read the file multiple times.  That's done by 
> > seeking back to the beginning of the file and reading; that doesn't work 
> > on pipes.
> 
> There is another way to do this quite easily: When running from a pipe,
> *force* the user to specify the input file format (just recycle the -F
> option?)
> 
>  Ciao
>         Joerg
>