Move tcpdump-3.9/ to tcpdump/. No need for a versioned dir.
[dragonfly.git] / contrib / tcpdump / tftp.h
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1/* @(#) $Header: /tcpdump/master/tcpdump/tftp.h,v 1.1.2.1 2007/09/14 01:03:12 guy Exp $ (LBL) */
2/*
3 * Copyright (c) 1983, 1993
4 * The Regents of the University of California. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by the University of
17 * California, Berkeley and its contributors.
18 * 4. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * @(#)tftp.h 8.1 (Berkeley) 6/2/93
35 */
36
37#ifndef _TFTP_H_
38#define _TFTP_H_
39
40/*
41 * Trivial File Transfer Protocol (IEN-133)
42 */
43#define SEGSIZE 512 /* data segment size */
44
45/*
46 * Packet types.
47 */
48#define RRQ 01 /* read request */
49#define WRQ 02 /* write request */
50#define DATA 03 /* data packet */
51#define ACK 04 /* acknowledgement */
52#define ERROR 05 /* error code */
53#define OACK 06 /* option acknowledgement */
54
55struct tftphdr {
56 unsigned short th_opcode; /* packet type */
57 union {
58 unsigned short tu_block; /* block # */
59 unsigned short tu_code; /* error code */
60 char tu_stuff[1]; /* request packet stuff */
61 } th_u;
62 char th_data[1]; /* data or error string */
63};
64
65#define th_block th_u.tu_block
66#define th_code th_u.tu_code
67#define th_stuff th_u.tu_stuff
68#define th_msg th_data
69
70/*
71 * Error codes.
72 */
73#define EUNDEF 0 /* not defined */
74#define ENOTFOUND 1 /* file not found */
75#define EACCESS 2 /* access violation */
76#define ENOSPACE 3 /* disk full or allocation exceeded */
77#define EBADOP 4 /* illegal TFTP operation */
78#define EBADID 5 /* unknown transfer ID */
79#define EEXISTS 6 /* file already exists */
80#define ENOUSER 7 /* no such user */
81
82#endif /* !_TFTP_H_ */