inet/arpa/tftp.h

   1 /*
   2  * Copyright (c) 1983, 1993
   3  *      The Regents of the University of California.  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      8.1 (Berkeley) 6/2/93
  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                 unsigned 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_ */