Re: updates needed to print-udp.c.. (was Re: RFC 9868 on Transport Options for UDP)

[Francois via tcpdump-workers <tcpdump-workers () lists tcpdump org>]

> --- Begin Message ---
>
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> From: Francois <devel.fx.lebail () orange fr>
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> Date: Thu, 9 Oct 2025 09:26:46 +0200
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> On 08/10/2025 19:51, Guy Harris wrote:
> > On Oct 8, 2025, at 10:33 AM, Francois via tcpdump-workers <tcpdump-workers () lists tcpdump org> wrote:
> >
> > > On 08/10/2025 18:53, Guy Harris wrote:
> > >
> > > > OK, so does this finally make the Length field in the UDP header serve a useful purpose, or was there a purpose for 
> > > > it *before* this that I didn't know about?
> > >
> > > One example on network stacks: Linux, net/ipv4/udp.c and net/ipv6/udp.c: length checks.
> >
> > But if the UDP header hadn't had a length field in the first place, and the UDP payload always ran to the end of the 
> > (possibly-reassembled) IP datagram, there wouldn't be a length field to check.
>
> That's right.
>
> --- End Message ---
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