xref: /illumos-gate/usr/src/uts/common/sys/mnttab.h (revision 26ec61e22ac23931eb9f303692a1df3c4da0626c)
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 (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
22 /*	  All Rights Reserved	*/
23 
24 
25 /*
26  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
27  *
28  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
29  * Use is subject to license terms.
30  */
31 
32 #ifndef _SYS_MNTTAB_H
33 #define	_SYS_MNTTAB_H
34 
35 #include <sys/types.h>
36 
37 #ifdef	__cplusplus
38 extern "C" {
39 #endif
40 
41 #define	MNTTAB	"/etc/mnttab"
42 #define	MNT_LINE_MAX	1024
43 
44 #define	MNT_TOOLONG	1	/* entry exceeds MNT_LINE_MAX */
45 #define	MNT_TOOMANY	2	/* too many fields in line */
46 #define	MNT_TOOFEW	3	/* too few fields in line */
47 
48 #define	mntnull(mp)\
49 	((mp)->mnt_special = (mp)->mnt_mountp = \
50 	    (mp)->mnt_fstype = (mp)->mnt_mntopts = \
51 	    (mp)->mnt_time = NULL)
52 
53 #define	putmntent(fd, mp)	(-1)
54 
55 /*
56  * The fields in struct extmnttab should match those in struct mnttab until new
57  * fields are encountered. This allows hasmntopt(), getmntent_common() and
58  * mntioctl() to cast one type to the other safely.
59  *
60  * The fields in struct mnttab, struct extmnttab and struct mntentbuf must all
61  * match those in the corresponding 32-bit versions defined in mntvnops.c.
62  */
63 struct mnttab {
64 	char	*mnt_special;
65 	char	*mnt_mountp;
66 	char	*mnt_fstype;
67 	char	*mnt_mntopts;
68 	char	*mnt_time;
69 };
70 
71 struct extmnttab {
72 	char	*mnt_special;
73 	char	*mnt_mountp;
74 	char	*mnt_fstype;
75 	char	*mnt_mntopts;
76 	char	*mnt_time;
77 	uint_t	mnt_major;
78 	uint_t	mnt_minor;
79 };
80 
81 struct mntentbuf {
82 	struct	extmnttab *mbuf_emp;
83 	size_t 	mbuf_bufsize;
84 	char	*mbuf_buf;
85 };
86 
87 #if !defined(_KERNEL)
88 extern void	resetmnttab(FILE *);
89 extern int	getmntent(FILE *, struct mnttab *);
90 extern int	getextmntent(FILE *, struct extmnttab *, size_t);
91 extern int	getmntany(FILE *, struct mnttab *, struct mnttab *);
92 extern char	*hasmntopt(struct mnttab *, char *);
93 extern char	*mntopt(char **);
94 #endif
95 
96 #ifdef	__cplusplus
97 }
98 #endif
99 
100 #endif	/* _SYS_MNTTAB_H */
101