33 lines
782 B
C
33 lines
782 B
C
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/*
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* udp.h
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*
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* User Datagram Protocol (RFC 768).
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*
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* Copyright (c) 2000 Dug Song <dugsong@monkey.org>
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*
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* $Id: udp.h,v 1.8 2002/04/02 05:05:39 dugsong Exp $
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*/
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#ifndef DNET_UDP_H
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#define DNET_UDP_H
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#define UDP_HDR_LEN 8
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struct udp_hdr {
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uint16_t uh_sport; /* source port */
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uint16_t uh_dport; /* destination port */
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uint16_t uh_ulen; /* udp length (including header) */
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uint16_t uh_sum; /* udp checksum */
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};
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#define UDP_PORT_MAX 65535
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#define udp_pack_hdr(hdr, sport, dport, ulen) do { \
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struct udp_hdr *udp_pack_p = (struct udp_hdr *)(hdr); \
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udp_pack_p->uh_sport = htons(sport); \
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udp_pack_p->uh_dport = htons(dport); \
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udp_pack_p->uh_ulen = htons(ulen); \
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} while (0)
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#endif /* DNET_UDP_H */
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