1/*
2 * Copyright (c) 2002 Juli Mallett. All rights reserved.
3 *
4 * This software was written by Juli Mallett <jmallett@FreeBSD.org> for the
5 * FreeBSD project. Redistribution and use in source and binary forms, with
6 * or without modification, are permitted provided that the following
7 * conditions are met:
8 *
9 * 1. Redistribution of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
11 * 2. Redistribution in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
26 *
| 1/*
2 * Copyright (c) 2002 Juli Mallett. All rights reserved.
3 *
4 * This software was written by Juli Mallett <jmallett@FreeBSD.org> for the
5 * FreeBSD project. Redistribution and use in source and binary forms, with
6 * or without modification, are permitted provided that the following
7 * conditions are met:
8 *
9 * 1. Redistribution of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
11 * 2. Redistribution in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
26 *
|
27 * $FreeBSD: head/lib/libufs/libufs.h 116086 2003-06-09 09:47:38Z jmallett $
| 27 * $FreeBSD: head/lib/libufs/libufs.h 163835 2006-10-31 21:21:48Z pjd $
|
28 */
29
30#ifndef __LIBUFS_H__
31#define __LIBUFS_H__
32
33/*
34 * libufs macros (internal, non-exported).
35 */
36#ifdef _LIBUFS
37#ifdef _LIBUFS_DEBUGGING
38/*
39 * Trace steps through libufs, to be used at entry and erroneous return.
40 */
41#define ERROR(uufsd, str) \
42do { \
43 fprintf(stderr, "libufs in %s", __func__); \
44 if (str != NULL) \
45 fprintf(stderr, ": %s", str); \
46 if (errno) \
47 fprintf(stderr, ": %s", strerror(errno)); \
48 fprintf(stderr, "\n"); \
49 if ((uufsd) != NULL) \
50 (uufsd)->d_error = str; \
51} while (0)
52#else /* _LIBUFS_DEBUGGING */
53#define ERROR(uufsd, str) \
54do { \
55 if ((uufsd) != NULL) \
56 (uufsd)->d_error = str; \
57} while (0)
58#endif /* _LIBUFS_DEBUGGING */
59#endif /* _LIBUFS */
60
61/*
62 * libufs structures.
63 */
64
65/*
66 * userland ufs disk.
67 */
68struct uufsd {
69 const char *d_name; /* disk name */
70 int d_ufs; /* decimal UFS version */
71 int d_fd; /* raw device file descriptor */
72 long d_bsize; /* device bsize */
73 ufs2_daddr_t d_sblock; /* superblock location */
74 caddr_t d_inoblock; /* inode block */
75 ino_t d_inomin; /* low inode */
76 ino_t d_inomax; /* high inode */
77 union {
78 struct fs d_fs; /* filesystem information */
79 char d_sb[MAXBSIZE];
80 /* superblock as buffer */
81 } d_sbunion;
82 union {
83 struct cg d_cg; /* cylinder group */
84 char d_buf[MAXBSIZE];
85 /* cylinder group storage */
86 } d_cgunion;
87 int d_ccg; /* current cylinder group */
88 int d_lcg; /* last cylinder group (in d_cg) */
89 const char *d_error; /* human readable disk error */
90 int d_mine; /* internal flags */
91#define d_fs d_sbunion.d_fs
92#define d_sb d_sbunion.d_sb
93#define d_cg d_cgunion.d_cg
94};
95
96__BEGIN_DECLS
97
98/*
99 * libufs prototypes.
100 */
101
102/*
103 * block.c
104 */
105ssize_t bread(struct uufsd *, ufs2_daddr_t, void *, size_t);
106ssize_t bwrite(struct uufsd *, ufs2_daddr_t, const void *, size_t);
107
108/*
109 * cgroup.c
110 */
111int cgread(struct uufsd *);
112int cgread1(struct uufsd *, int);
| 28 */
29
30#ifndef __LIBUFS_H__
31#define __LIBUFS_H__
32
33/*
34 * libufs macros (internal, non-exported).
35 */
36#ifdef _LIBUFS
37#ifdef _LIBUFS_DEBUGGING
38/*
39 * Trace steps through libufs, to be used at entry and erroneous return.
40 */
41#define ERROR(uufsd, str) \
42do { \
43 fprintf(stderr, "libufs in %s", __func__); \
44 if (str != NULL) \
45 fprintf(stderr, ": %s", str); \
46 if (errno) \
47 fprintf(stderr, ": %s", strerror(errno)); \
48 fprintf(stderr, "\n"); \
49 if ((uufsd) != NULL) \
50 (uufsd)->d_error = str; \
51} while (0)
52#else /* _LIBUFS_DEBUGGING */
53#define ERROR(uufsd, str) \
54do { \
55 if ((uufsd) != NULL) \
56 (uufsd)->d_error = str; \
57} while (0)
58#endif /* _LIBUFS_DEBUGGING */
59#endif /* _LIBUFS */
60
61/*
62 * libufs structures.
63 */
64
65/*
66 * userland ufs disk.
67 */
68struct uufsd {
69 const char *d_name; /* disk name */
70 int d_ufs; /* decimal UFS version */
71 int d_fd; /* raw device file descriptor */
72 long d_bsize; /* device bsize */
73 ufs2_daddr_t d_sblock; /* superblock location */
74 caddr_t d_inoblock; /* inode block */
75 ino_t d_inomin; /* low inode */
76 ino_t d_inomax; /* high inode */
77 union {
78 struct fs d_fs; /* filesystem information */
79 char d_sb[MAXBSIZE];
80 /* superblock as buffer */
81 } d_sbunion;
82 union {
83 struct cg d_cg; /* cylinder group */
84 char d_buf[MAXBSIZE];
85 /* cylinder group storage */
86 } d_cgunion;
87 int d_ccg; /* current cylinder group */
88 int d_lcg; /* last cylinder group (in d_cg) */
89 const char *d_error; /* human readable disk error */
90 int d_mine; /* internal flags */
91#define d_fs d_sbunion.d_fs
92#define d_sb d_sbunion.d_sb
93#define d_cg d_cgunion.d_cg
94};
95
96__BEGIN_DECLS
97
98/*
99 * libufs prototypes.
100 */
101
102/*
103 * block.c
104 */
105ssize_t bread(struct uufsd *, ufs2_daddr_t, void *, size_t);
106ssize_t bwrite(struct uufsd *, ufs2_daddr_t, const void *, size_t);
107
108/*
109 * cgroup.c
110 */
111int cgread(struct uufsd *);
112int cgread1(struct uufsd *, int);
|
| 113int cgwrite1(struct uufsd *, int);
|
113
114/*
115 * inode.c
116 */
117int getino(struct uufsd *, void **, ino_t, int *);
118
119/*
120 * sblock.c
121 */
122int sbread(struct uufsd *);
123int sbwrite(struct uufsd *, int);
124
125/*
126 * type.c
127 */
128int ufs_disk_close(struct uufsd *);
129int ufs_disk_fillout(struct uufsd *, const char *);
130int ufs_disk_fillout_blank(struct uufsd *, const char *);
131int ufs_disk_write(struct uufsd *);
132
133__END_DECLS
134
135#endif /* __LIBUFS_H__ */
| 114
115/*
116 * inode.c
117 */
118int getino(struct uufsd *, void **, ino_t, int *);
119
120/*
121 * sblock.c
122 */
123int sbread(struct uufsd *);
124int sbwrite(struct uufsd *, int);
125
126/*
127 * type.c
128 */
129int ufs_disk_close(struct uufsd *);
130int ufs_disk_fillout(struct uufsd *, const char *);
131int ufs_disk_fillout_blank(struct uufsd *, const char *);
132int ufs_disk_write(struct uufsd *);
133
134__END_DECLS
135
136#endif /* __LIBUFS_H__ */
|