1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1983, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)tftp.h 8.1 (Berkeley) 6/2/93 32 */ 33 34 #ifndef _ARPA_TFTP_H_ 35 #define _ARPA_TFTP_H_ 36 37 38 #include <features.h> 39 40 41 #ifdef _DEFAULT_SOURCE 42 43 44 /* 45 * Trivial File Transfer Protocol (IEN-133) 46 */ 47 #define SEGSIZE 512 /* data segment size */ 48 49 /* 50 * Packet types. 51 */ 52 #define RRQ 01 /* read request */ 53 #define WRQ 02 /* write request */ 54 #define DATA 03 /* data packet */ 55 #define ACK 04 /* acknowledgement */ 56 #define ERROR 05 /* error code */ 57 #define OACK 06 /* option acknowledgement */ 58 59 struct tftphdr { 60 unsigned short th_opcode; /* packet type */ 61 union { 62 unsigned short tu_block; /* block # */ 63 unsigned short tu_code; /* error code */ 64 char tu_stuff[1]; /* request packet stuff */ 65 } th_u; 66 char th_data[1]; /* data or error string */ 67 }; 68 69 #define th_block th_u.tu_block 70 #define th_code th_u.tu_code 71 #define th_stuff th_u.tu_stuff 72 #define th_msg th_data 73 74 /* 75 * Error codes. 76 */ 77 #define EUNDEF 0 /* not defined */ 78 #define ENOTFOUND 1 /* file not found */ 79 #define EACCESS 2 /* access violation */ 80 #define ENOSPACE 3 /* disk full or allocation exceeded */ 81 #define EBADOP 4 /* illegal TFTP operation */ 82 #define EBADID 5 /* unknown transfer ID */ 83 #define EEXISTS 6 /* file already exists */ 84 #define ENOUSER 7 /* no such user */ 85 #define EOPTNEG 8 /* option negotiation failed */ 86 87 88 #endif 89 90 91 #endif /* !_TFTP_H_ */ 92