UbixOS V2 2.0

udp.h
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1
6 /*
7 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without modification,
11 * are permitted provided that the following conditions are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright notice,
14 * this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright notice,
16 * this list of conditions and the following disclaimer in the documentation
17 * and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
22 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
23 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
24 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
26 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
29 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
30 * OF SUCH DAMAGE.
31 *
32 * This file is part of the lwIP TCP/IP stack.
33 *
34 * Author: Adam Dunkels <adam@sics.se>
35 *
36 */
37 #ifndef LWIP_HDR_PROT_UDP_H
38 #define LWIP_HDR_PROT_UDP_H
39
40 #include "net/arch.h"
41
42 #ifdef __cplusplus
43 extern "C" {
44 #endif
45
46 #define UDP_HLEN 8
47
48 /* Fields are (of course) in network byte order. */
49 #ifdef PACK_STRUCT_USE_INCLUDES
50 # include "arch/bpstruct.h"
51 #endif
52 PACK_STRUCT_BEGIN
53 struct udp_hdr {
54 PACK_STRUCT_FIELD(u16_t src);
55 PACK_STRUCT_FIELD(u16_t dest); /* src/dest UDP ports */
56 PACK_STRUCT_FIELD(u16_t len);
57 PACK_STRUCT_FIELD(u16_t chksum);
58 } PACK_STRUCT_STRUCT;
59 PACK_STRUCT_END
60 #ifdef PACK_STRUCT_USE_INCLUDES
61 # include "arch/epstruct.h"
62 #endif
63
64 #ifdef __cplusplus
65 }
66 #endif
67
68 #endif /* LWIP_HDR_PROT_UDP_H */
udp_hdr
Definition: udp.h:53
udp_hdr::PACK_STRUCT_FIELD
PACK_STRUCT_FIELD(u16_t src)
u16_t
uint16_t u16_t
Definition: arch.h:124
arch.h
PACK_STRUCT_BEGIN
#define PACK_STRUCT_BEGIN
Definition: cc.h:8
PACK_STRUCT_STRUCT
PACK_STRUCT_BEGIN struct udp_hdr PACK_STRUCT_STRUCT
PACK_STRUCT_END
#define PACK_STRUCT_END
Definition: cc.h:9