Why the lack of networky bits in the standard library

[Matthew Caron]

In C, if I want to parse a UDP packet, I need to build my own offsets 
into data based off constants in:
net/ethernet.h
netinet/udp.h

Things like:

#define PACKET_DATA_OFFSET_DEFAULT (
      ETHER_HDR_LEN + sizeof(struct iphdr) + \
      sizeof(struct udphdr))

That would be easy to port to D, if I had access to those structs and 
defines, but it doesn't seem like these have been ported over. Am I 
missing something obvious?

Thanks.

-- 
Matthew Caron, Software Build Engineer
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