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      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 _ARPA_TFTP_H
     37 #define _ARPA_TFTP_H
     38 /*
     39  * Trivial File Transfer Protocol (IEN-133)
     40  */
     41 #define	SEGSIZE		512		/* data segment size */
     42 
     43 /*
     44  * Packet types.
     45  */
     46 #define	RRQ	01			/* read request */
     47 #define	WRQ	02			/* write request */
     48 #define	DATA	03			/* data packet */
     49 #define	ACK	04			/* acknowledgement */
     50 #define	ERROR	05			/* error code */
     51 
     52 struct	tftphdr {
     53 	short	th_opcode;		/* packet type */
     54 	union {
     55 		short	tu_block;	/* block # */
     56 		short	tu_code;	/* error code */
     57 		char	tu_stuff[1];	/* request packet stuff */
     58 	} th_u;
     59 	char	th_data[1];		/* data or error string */
     60 };
     61 
     62 #define	th_block	th_u.tu_block
     63 #define	th_code		th_u.tu_code
     64 #define	th_stuff	th_u.tu_stuff
     65 #define	th_msg		th_data
     66 
     67 /*
     68  * Error codes.
     69  */
     70 #define	EUNDEF		0		/* not defined */
     71 #define	ENOTFOUND	1		/* file not found */
     72 #define	EACCESS		2		/* access violation */
     73 #define	ENOSPACE	3		/* disk full or allocation exceeded */
     74 #define	EBADOP		4		/* illegal TFTP operation */
     75 #define	EBADID		5		/* unknown transfer ID */
     76 #define	EEXISTS		6		/* file already exists */
     77 #define	ENOUSER		7		/* no such user */
     78 
     79 
     80 extern int readit(FILE * file, struct tftphdr **dpp, int convert);
     81 extern void read_ahead(FILE *file, int convert);
     82 extern int writeit(FILE *file, struct tftphdr **dpp, int ct, int convert);
     83 extern int write_behind(FILE *file, int convert);
     84 extern int synchnet(int f);
     85 extern struct tftphdr *w_init(void);
     86 extern struct tftphdr *r_init(void);
     87 
     88 
     89 #endif /* _ARPA_TFTP_H */
     90