* David Preece <[EMAIL PROTECTED]> [010920 17:35] wrote:
> Hi,
>
> I'm trying to write a raw (SYN) packet with sendto. I've opened the socket
> with socket(AF_INET, SOCK_RAW, IPPROTO_RAW), the result is checked and it is
> unbound. A buffer and a sockaddr_in are formed then sent down the socket with
> sendto(sck,pBuffer,40,0,(struct sockaddr *)&sin,sizeof(sin)) and the packet
> captured using ethereal. While the packet does send, with the correct source
> and destination addresses, the buffer I pass is appended as data on the end
> of an IP packet with unknown protocol, rather than replacing the IP and TCP
> headers (i.e. appending the ethernet header) as I had hoped.
>
> Has anyone seen this before? Is there a socket option I have missed? I've
> R'dTFM till I'm blue in the face, and all the examples I can find seem to be
> for Linux on big endian machines :(
It would help if you'd provided what you think you're sending and
what the other end is actually seeing. Without that I can't help
much except to suggest that you make sure you're using htons/htonl
in the right spot and on the right size types. I used htons instead
of htonl on a 32 bit datum and it took me a good half a day to
figure out what i had done wrong.
> PS. No, not a packet kiddie.
none of us are... really. >;)
--
-Alfred Perlstein [[EMAIL PROTECTED]]
'Instead of asking why a piece of software is using "1970s technology,"
start asking why software is ignoring 30 years of accumulated wisdom.'
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