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tftp.h revision 1.1 
      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 
     53 struct	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