1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2001-2002 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef _TFTPCOMMON_H
28 #define	_TFTPCOMMON_H
29 
30 /*
31  * Defines and function declarations common to tftp and in.tftpd.
32  */
33 
34 #ifdef __cplusplus
35 extern "C" {
36 #endif
37 
38 #include <arpa/tftp.h>
39 
40 #define	MIN_BLKSIZE	8			/* RFC 2348 */
41 #define	MAX_BLKSIZE	65464			/* RFC 2348 */
42 #define	MIN_TIMEOUT	1			/* RFC 2349 */
43 #define	MAX_TIMEOUT	255			/* RFC 2349 */
44 #define	PKTSIZE		(MAX_BLKSIZE + 4)	/* DATA packet max size */
45 #define	MAX_OPTVAL_LEN	32			/* Option value max length */
46 
47 /* Format when printing an off_t */
48 #if _FILE_OFFSET_BITS == 64
49 #define	OFF_T_FMT	"%lld"
50 #else
51 #define	OFF_T_FMT	"%ld"
52 #endif
53 
54 typedef union {
55 	struct tftphdr	tb_hdr;
56 	char		tb_data[PKTSIZE];
57 } tftpbuf;
58 
59 struct errmsg {
60 	int	e_code;
61 	char	*e_msg;
62 };
63 extern struct errmsg	errmsgs[];
64 
65 /* Declarations for shared functions in tftpsubs.c */
66 extern struct tftphdr	*w_init(void);
67 extern struct tftphdr	*r_init(void);
68 extern int		readit(FILE *, struct tftphdr **, int);
69 extern void		read_ahead(FILE *, int);
70 extern int		writeit(FILE *, struct tftphdr **, int, int);
71 extern int		write_behind(FILE *, int);
72 extern int		synchnet(int);
73 extern char		*next_field(const char *, const char *);
74 extern void		print_options(FILE *, char *, int);
75 extern void		cancel_alarm(void);
76 
77 #ifdef __cplusplus
78 }
79 #endif
80 
81 #endif /* _TFTPCOMMON_H */
82