tftp.h revision 1.3 
1/*	$OpenBSD: tftp.h,v 1.3 1997/09/21 10:46:04 niklas Exp $	*/
2/*	$NetBSD: tftp.h,v 1.3 1994/10/26 00:56:48 cgd Exp $	*/
3
4/*
5 * Copyright (c) 1983 Regents of the University of California.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *	This product includes software developed by the University of
19 *	California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 *	@(#)tftp.h	5.4 (Berkeley) 4/3/91
37 */
38
39#ifndef _TFTP_H_
40#define	_TFTP_H_
41
42/*
43 * Trivial File Transfer Protocol (IEN-133)
44 */
45#define	SEGSIZE		512		/* data segment size */
46
47/*
48 * Packet types.
49 */
50#define	RRQ	01			/* read request */
51#define	WRQ	02			/* write request */
52#define	DATA	03			/* data packet */
53#define	ACK	04			/* acknowledgement */
54#define	ERROR	05			/* error code */
55
56struct	tftphdr {
57	u_int16_t th_opcode;		/* packet type */
58	union {
59		u_int16_t tu_block;	/* block # */
60		u_int16_t tu_code;	/* error code */
61		char	tu_stuff[1];	/* request packet stuff */
62	} th_u;
63	char	th_data[1];		/* data or error string */
64};
65
66#define	th_block	th_u.tu_block
67#define	th_code		th_u.tu_code
68#define	th_stuff	th_u.tu_stuff
69#define	th_msg		th_data
70
71/*
72 * Error codes.
73 */
74#define	EUNDEF		0		/* not defined */
75#define	ENOTFOUND	1		/* file not found */
76#define	EACCESS		2		/* access violation */
77#define	ENOSPACE	3		/* disk full or allocation exceeded */
78#define	EBADOP		4		/* illegal TFTP operation */
79#define	EBADID		5		/* unknown transfer ID */
80#define	EEXISTS		6		/* file already exists */
81#define	ENOUSER		7		/* no such user */
82
83#endif /* !_TFTP_H_ */
84