Re: Userlevel ARP request

Matthew Wilcox (Matthew.Wilcox@genedata.com)
Tue, 31 Aug 1999 18:03:23 +0200

On Tue, Aug 31, 1999 at 04:42:58PM +0100, sjw44@eng.cam.ac.uk wrote:
> yes this can be done with a PF_PACKET socket. You have a choice of
> SOCK_RAW (with datalink headers) or SOCK_DGRAM (a slightly more cooked
> mode of operation). Probably you would do something like:
>
> s = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ARP));
>
> You can restrict this to a single device with bind() too if you want to.
> man 4 packet has more information,

that's `man 7 packet'. Some distributions distributed an older version
of netman, against the wishes of the authors (that version was explicitly
lableed DO NOT DISTRIBUTE). In the released version which was merged
with manpages-1.23, the protocol pages were moved to section 7.

-- 
Matthew Wilcox <willy@bofh.ai>
"Windows and MacOS are products, contrived by engineers in the service of
specific companies. Unix, by contrast, is not so much a product as it is a
painstakingly compiled oral history of the hacker subculture." - N Stephenson


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