tftp.h revision 2163 
1/*
2 * Copyright (c) 1983, 1993
3 *	The Regents of the University of California.  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	8.1 (Berkeley) 6/2/93
34 */
35
36#ifndef _ARPA_TFTP_H_
37#define	_ARPA_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_ */
81