/* @(#) $Header: /tcpdump/master/tcpdump/tftp.h,v 1.1.4.1 2008-04-11 16:44:17 gianluca Exp $ (LBL) *//* * Copyright (c) 1983, 1993 *	The Regents of the University of California.  All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright *    notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright *    notice, this list of conditions and the following disclaimer in the *    documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software *    must display the following acknowledgement: *	This product includes software developed by the University of *	California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors *    may be used to endorse or promote products derived from this software *    without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * *	@(#)tftp.h	8.1 (Berkeley) 6/2/93 */#ifndef _TFTP_H_#define	_TFTP_H_/* * Trivial File Transfer Protocol (IEN-133) */#define	SEGSIZE		512		/* data segment size *//* * Packet types. */#define	RRQ	01			/* read request */#define	WRQ	02			/* write request */#define	DATA	03			/* data packet */#define	ACK	04			/* acknowledgement */#define	TFTP_ERROR	05			/* error code */#define OACK	06			/* option acknowledgement */struct	tftphdr {	unsigned short	th_opcode;		/* packet type */	union {		unsigned short	tu_block;	/* block # */		unsigned short	tu_code;	/* error code */		char	tu_stuff[1];	/* request packet stuff */	} th_u;	char	th_data[1];		/* data or error string */};#define	th_block	th_u.tu_block#define	th_code		th_u.tu_code#define	th_stuff	th_u.tu_stuff#define	th_msg		th_data/* * Error codes. */#define	EUNDEF		0		/* not defined */#define	ENOTFOUND	1		/* file not found */#define	EACCESS		2		/* access violation */#define	ENOSPACE	3		/* disk full or allocation exceeded */#define	EBADOP		4		/* illegal TFTP operation */#define	EBADID		5		/* unknown transfer ID */#define	EEXISTS		6		/* file already exists */#define	ENOUSER		7		/* no such user */#endif /* !_TFTP_H_ */