Re: IP_HDRINCL fails on Intel-Mac
Re: IP_HDRINCL fails on Intel-Mac
- Subject: Re: IP_HDRINCL fails on Intel-Mac
- From: "Duane Murphy" <email@hidden>
- Date: Thu, 28 Dec 2006 13:25:33 -0800
Total shot in the dark, but what about byte swapping?
On PPC the bytes are already in network order on Intel they have to be
swapped.
I have also read reports that some fields have to be swapped while
others don't. (Seems like a nasty bug.) I don't know if that applies to
your situation or not. I would expect tech notes or some such on the
Apple site.
Just a thought.
...Duane
--- At Thu, 28 Dec 2006 21:57:04 +0100, Stephanie Wist wrote:
>
>Hello,
>
>I have encountered a strange problem: I'm using raw sockets (
>socket(AF_INET, SOCK_RAW, IPPROTO_RAW) ) with the option IP_HDRINCL set
>to 1. ( setsockopt(sock, 0, IP_HDRINCL, &one, sizeof(one) ). This works
>fine for me on my Powerbook running on Jaguar and Panther, but fails on
>a new MacbookPro when calling sendto() with EINVAL.
>
>I'm pretty sure that my self-built IP-header is correct, I compared the
>packet-data before sending and they were the same on the Powerbook and
>the MacbookPro.
>
>Am I overlooking something? Is the option IP_HDRINCL disabled by
>purpose on the new Macs, as it is on WinXP (although the manpages state
>otherwise)?
>Or has anyone a functioning code snippet using raw sockets with
>IP_HDRINCL on a MacbookPro?
>
>
>Wondering,
>- Stephanie Wist
...Duane
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Macnetworkprog mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden