obp/obp/pkg/netinet/udp-h.fth

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\ Hypervisor Software File: udp-h.fth
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id: @(#)udp-h.fth 1.1 04/09/07
purpose:
copyright: Copyright 2004 Sun Microsystems, Inc.  All Rights Reserved
copyright: Use is subject to license terms.

headerless

struct
   /ip-header  field  >udp-iphdr        \ IP header, no options
   /w          field  >udp-sport        \ Source port
   /w          field  >udp-dport        \ Destination port
   /w          field  >udp-len          \ UDP length
   /w          field  >udp-cksum        \ UDP checksum
constant /udpip-header

d# 8  constant  /udp-header

\ UDP control block.
struct
   /n           field  >ucb-inpcb       \ Backpointer to INPCB
   /queue-head  field  >ucb-dgramq      \ Queue of pending datagrams
constant /udp-control-block

: ucb>inpcb ( ucb -- inpcb )  >ucb-inpcb @ ;
: inpcb>ucb ( inpcb -- ucb )  >in-ppcb @ ;

: so>ucb ( sockaddr -- ucb )  so>inpcb inpcb>ucb ;

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