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[unix-history] / include / arpa / tftp.h
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1/*
2 * Copyright (c) 1983 Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)tftp.h 5.4 (Berkeley) 4/3/91
34 */
35
36#ifndef _TFTP_H_
37#define _TFTP_H_
38
39/*
40 * Trivial File Transfer Protocol (IEN-133)
41 */
42#define SEGSIZE 512 /* data segment size */
43
44/*
45 * Packet types.
46 */
47#define RRQ 01 /* read request */
48#define WRQ 02 /* write request */
49#define DATA 03 /* data packet */
50#define ACK 04 /* acknowledgement */
51#define ERROR 05 /* error code */
52
53struct tftphdr {
54 short th_opcode; /* packet type */
55 union {
56 short tu_block; /* block # */
57 short tu_code; /* error code */
58 char tu_stuff[1]; /* request packet stuff */
59 } th_u;
60 char th_data[1]; /* data or error string */
61};
62
63#define th_block th_u.tu_block
64#define th_code th_u.tu_code
65#define th_stuff th_u.tu_stuff
66#define th_msg th_data
67
68/*
69 * Error codes.
70 */
71#define EUNDEF 0 /* not defined */
72#define ENOTFOUND 1 /* file not found */
73#define EACCESS 2 /* access violation */
74#define ENOSPACE 3 /* disk full or allocation exceeded */
75#define EBADOP 4 /* illegal TFTP operation */
76#define EBADID 5 /* unknown transfer ID */
77#define EEXISTS 6 /* file already exists */
78#define ENOUSER 7 /* no such user */
79
80#endif /* !_TFTP_H_ */