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- /*
- * Copyright (c) 1983 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that: (1) source distributions retain this entire copyright
- * notice and comment, and (2) distributions including binaries display
- * the following acknowledgement: ``This product includes software
- * developed by the University of California, Berkeley and its contributors''
- * in the documentation or other materials provided with the distribution
- * and in all advertising materials mentioning features or use of this
- * software. 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- *
- * @(#)tftp.h 5.3 (Berkeley) 6/1/90
- */
-
- /*
- * 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 ERROR 05 /* error code */
-
- struct tftphdr {
- short th_opcode; /* packet type */
- union {
- short tu_block; /* block # */
- 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 */
-