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__ */
|