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1.1 root 1: /* tftp.h 4.2 83/06/11 */
2:
3: /*
4: * Trivial File Transfer Protocol (IEN-133)
5: */
6: #define SEGSIZE 512 /* data segment size */
7:
8: /*
9: * Packet types.
10: */
11: #define RRQ 01 /* read request */
12: #define WRQ 02 /* write request */
13: #define DATA 03 /* data packet */
14: #define ACK 04 /* acknowledgement */
15: #define ERROR 05 /* error code */
16:
17: struct tftphdr {
18: short th_opcode; /* packet type */
19: union {
20: short tu_block; /* block # */
21: short tu_code; /* error code */
22: char tu_stuff[1]; /* request packet stuff */
23: } th_u;
24: char th_data[1]; /* data or error string */
25: };
26:
27: #define th_block th_u.tu_block
28: #define th_code th_u.tu_code
29: #define th_stuff th_u.tu_stuff
30: #define th_msg th_data
31:
32: /*
33: * Error codes.
34: */
35: #define EUNDEF 0 /* not defined */
36: #define ENOTFOUND 1 /* file not found */
37: #define EACCESS 2 /* access violation */
38: #define ENOSPACE 3 /* disk full or allocation exceeded */
39: #define EBADOP 4 /* illegal TFTP operation */
40: #define EBADID 5 /* unknown transfer ID */
41: #define EEXISTS 6 /* file already exists */
42: #define ENOUSER 7 /* no such user */
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