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