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