Back to index

glibc  2.9
tftp.h
Go to the documentation of this file.
00001 /*
00002  * Copyright (c) 1983, 1993
00003  *     The Regents of the University of California.  All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  * 1. Redistributions of source code must retain the above copyright
00009  *    notice, this list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above copyright
00011  *    notice, this list of conditions and the following disclaimer in the
00012  *    documentation and/or other materials provided with the distribution.
00013  * 4. Neither the name of the University nor the names of its contributors
00014  *    may be used to endorse or promote products derived from this software
00015  *    without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
00018  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
00021  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00022  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00023  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00024  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00025  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00026  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00027  * SUCH DAMAGE.
00028  *
00029  *     @(#)tftp.h    8.1 (Berkeley) 6/2/93
00030  */
00031 
00032 #ifndef _ARPA_TFTP_H
00033 #define       _ARPA_TFTP_H 1
00034 
00035 /*
00036  * Trivial File Transfer Protocol (IEN-133)
00037  */
00038 #define       SEGSIZE              512           /* data segment size */
00039 
00040 /*
00041  * Packet types.
00042  */
00043 #define       RRQ    01                          /* read request */
00044 #define       WRQ    02                          /* write request */
00045 #define       DATA   03                          /* data packet */
00046 #define       ACK    04                          /* acknowledgement */
00047 #define       ERROR  05                          /* error code */
00048 
00049 struct tftphdr {
00050        short  th_opcode;                  /* packet type */
00051        union {
00052               unsigned short       tu_block;     /* block # */
00053               short  tu_code;             /* error code */
00054               char   tu_stuff[1];         /* request packet stuff */
00055        } __attribute__ ((__packed__)) th_u;
00056        char   th_data[1];                 /* data or error string */
00057 } __attribute__ ((__packed__));
00058 
00059 #define       th_block      th_u.tu_block
00060 #define       th_code              th_u.tu_code
00061 #define       th_stuff      th_u.tu_stuff
00062 #define       th_msg        th_data
00063 
00064 /*
00065  * Error codes.
00066  */
00067 #define       EUNDEF        0             /* not defined */
00068 #define       ENOTFOUND     1             /* file not found */
00069 #define       EACCESS              2             /* access violation */
00070 #define       ENOSPACE      3             /* disk full or allocation exceeded */
00071 #define       EBADOP        4             /* illegal TFTP operation */
00072 #define       EBADID        5             /* unknown transfer ID */
00073 #define       EEXISTS              6             /* file already exists */
00074 #define       ENOUSER              7             /* no such user */
00075 
00076 #endif /* arpa/tftp.h */