/usr/include/diet/arpa/tftp.h is in dietlibc-dev 0.33~cvs20120325-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | #ifndef _ARPA_TFTP_H
#define _ARPA_TFTP_H
#include <inttypes.h>
#define SEGSIZE 512 /* data segment size */
#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 {
int16_t th_opcode; /* packet type */
union {
uint16_t tu_block; /* block # */
int16_t tu_code; /* error code */
char tu_stuff[1]; /* request packet stuff */
} __attribute__ ((__packed__)) th_u;
char th_data[1]; /* data or error string */
} __attribute__ ((__packed__));
#define th_block th_u.tu_block
#define th_code th_u.tu_code
#define th_stuff th_u.tu_stuff
#define th_msg th_data
#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
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