2 * Copyright (c) 2002 Juli Mallett. All rights reserved.
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
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.
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.
34 * libufs macros (internal, non-exported).
37 #ifdef _LIBUFS_DEBUGGING
39 * Trace steps through libufs, to be used at entry and erroneous return.
41 #define ERROR(uufsd, str) \
43 fprintf(stderr, "libufs in %s", __func__); \
45 fprintf(stderr, ": %s", str); \
47 fprintf(stderr, ": %s", strerror(errno)); \
48 fprintf(stderr, "\n"); \
49 if ((uufsd) != NULL) \
50 (uufsd)->d_error = str; \
52 #else /* _LIBUFS_DEBUGGING */
53 #define ERROR(uufsd, str) \
55 if ((uufsd) != NULL) \
56 (uufsd)->d_error = str; \
58 #endif /* _LIBUFS_DEBUGGING */
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 */
78 struct fs d_fs; /* filesystem information */
80 /* superblock as buffer */
83 struct cg d_cg; /* cylinder group */
85 /* cylinder group storage */
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
105 ssize_t bread(struct uufsd *, ufs2_daddr_t, void *, size_t);
106 ssize_t bwrite(struct uufsd *, ufs2_daddr_t, const void *, size_t);
107 int berase(struct uufsd *, ufs2_daddr_t, ufs2_daddr_t);
112 int cgread(struct uufsd *);
113 int cgread1(struct uufsd *, int);
114 int cgwrite1(struct uufsd *, int);
119 int getino(struct uufsd *, void **, ino_t, int *);
124 int sbread(struct uufsd *);
125 int sbwrite(struct uufsd *, int);
130 int ufs_disk_close(struct uufsd *);
131 int ufs_disk_fillout(struct uufsd *, const char *);
132 int ufs_disk_fillout_blank(struct uufsd *, const char *);
133 int ufs_disk_write(struct uufsd *);
137 #endif /* __LIBUFS_H__ */