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 struct csum *d_sbcsum; /* Superblock summary info */
75 caddr_t d_inoblock; /* inode block */
76 ino_t d_inomin; /* low inode */
77 ino_t d_inomax; /* high inode */
79 struct fs d_fs; /* filesystem information */
81 /* superblock as buffer */
84 struct cg d_cg; /* cylinder group */
86 /* cylinder group storage */
88 int d_ccg; /* current cylinder group */
89 int d_lcg; /* last cylinder group (in d_cg) */
90 const char *d_error; /* human readable disk error */
91 int d_mine; /* internal flags */
92 #define d_fs d_sbunion.d_fs
93 #define d_sb d_sbunion.d_sb
94 #define d_cg d_cgunion.d_cg
106 ssize_t bread(struct uufsd *, ufs2_daddr_t, void *, size_t);
107 ssize_t bwrite(struct uufsd *, ufs2_daddr_t, const void *, size_t);
108 int berase(struct uufsd *, ufs2_daddr_t, ufs2_daddr_t);
113 ufs2_daddr_t cgballoc(struct uufsd *);
114 int cgbfree(struct uufsd *, ufs2_daddr_t, long);
115 ino_t cgialloc(struct uufsd *);
116 int cgread(struct uufsd *);
117 int cgread1(struct uufsd *, int);
118 int cgwrite(struct uufsd *);
119 int cgwrite1(struct uufsd *, int);
124 int getino(struct uufsd *, void **, ino_t, int *);
125 int putino(struct uufsd *);
130 int sbread(struct uufsd *);
131 int sbwrite(struct uufsd *, int);
136 int ufs_disk_close(struct uufsd *);
137 int ufs_disk_fillout(struct uufsd *, const char *);
138 int ufs_disk_fillout_blank(struct uufsd *, const char *);
139 int ufs_disk_write(struct uufsd *);
144 void ffs_clrblock(struct fs *, u_char *, ufs1_daddr_t);
145 void ffs_clusteracct(struct fs *, struct cg *, ufs1_daddr_t, int);
146 void ffs_fragacct(struct fs *, int, int32_t [], int);
147 int ffs_isblock(struct fs *, u_char *, ufs1_daddr_t);
148 int ffs_isfreeblock(struct fs *, u_char *, ufs1_daddr_t);
149 void ffs_setblock(struct fs *, u_char *, ufs1_daddr_t);
153 #endif /* __LIBUFS_H__ */