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Annotation of 43BSDTahoe/include/arpa/tftp.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1983 Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms are permitted
                      6:  * provided that the above copyright notice and this paragraph are
                      7:  * duplicated in all such forms and that any documentation,
                      8:  * advertising materials, and other materials related to such
                      9:  * distribution and use acknowledge that the software was developed
                     10:  * by the University of California, Berkeley.  The name of the
                     11:  * University may not be used to endorse or promote products derived
                     12:  * from this software without specific prior written permission.
                     13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     16:  *
                     17:  *     @(#)tftp.h      5.2 (Berkeley) 6/27/88
                     18:  */
                     19: 
                     20: /*
                     21:  * Trivial File Transfer Protocol (IEN-133)
                     22:  */
                     23: #define        SEGSIZE         512             /* data segment size */
                     24: 
                     25: /*
                     26:  * Packet types.
                     27:  */
                     28: #define        RRQ     01                      /* read request */
                     29: #define        WRQ     02                      /* write request */
                     30: #define        DATA    03                      /* data packet */
                     31: #define        ACK     04                      /* acknowledgement */
                     32: #define        ERROR   05                      /* error code */
                     33: 
                     34: struct tftphdr {
                     35:        short   th_opcode;              /* packet type */
                     36:        union {
                     37:                short   tu_block;       /* block # */
                     38:                short   tu_code;        /* error code */
                     39:                char    tu_stuff[1];    /* request packet stuff */
                     40:        } th_u;
                     41:        char    th_data[1];             /* data or error string */
                     42: };
                     43: 
                     44: #define        th_block        th_u.tu_block
                     45: #define        th_code         th_u.tu_code
                     46: #define        th_stuff        th_u.tu_stuff
                     47: #define        th_msg          th_data
                     48: 
                     49: /*
                     50:  * Error codes.
                     51:  */
                     52: #define        EUNDEF          0               /* not defined */
                     53: #define        ENOTFOUND       1               /* file not found */
                     54: #define        EACCESS         2               /* access violation */
                     55: #define        ENOSPACE        3               /* disk full or allocation exceeded */
                     56: #define        EBADOP          4               /* illegal TFTP operation */
                     57: #define        EBADID          5               /* unknown transfer ID */
                     58: #define        EEXISTS         6               /* file already exists */
                     59: #define        ENOUSER         7               /* no such user */

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