| /* |
| * 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. |
| * 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 _ARPA_TFTP_H |
| #define _ARPA_TFTP_H 1 |
| |
| /* |
| * 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 { |
| char tu_padding[3]; /* sizeof() compat */ |
| struct { |
| union { |
| unsigned short tu_block; /* block # */ |
| short tu_code; /* error code */ |
| } __attribute__ ((__packed__)) th_u3; |
| char tu_data[0]; /* data or error string */ |
| } __attribute__ ((__packed__)) th_u2; |
| char tu_stuff[0]; /* request packet stuff */ |
| } __attribute__ ((__packed__)) th_u1; |
| } __attribute__ ((__packed__)); |
| |
| #define th_block th_u1.th_u2.th_u3.tu_block |
| #define th_code th_u1.th_u2.th_u3.tu_code |
| #define th_stuff th_u1.tu_stuff |
| #define th_data th_u1.th_u2.tu_data |
| #define th_msg th_u1.th_u2.tu_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 /* arpa/tftp.h */ |