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git.wh0rd.org - dump.git/blob - compat/include/bsdcompat.h
2 * Ported to Linux's Second Extended File System as part of the
3 * dump and restore backup suit
4 * Remy Card <card@Linux.EU.Org>, 1994-1997
5 * Stelian Pop <pop@cybercable.fr>, 1999
7 * $Id: bsdcompat.h,v 1.5 1999/10/11 13:31:08 stelian Exp $
14 #define __dead volatile
21 #define MIN(a,b) ((a < b) ? a : b)
24 #define WINO ((ino_t)1)
27 #define MAXBSIZE EXT2_MAX_BLOCK_SIZE
28 #define ROOTINO EXT2_ROOT_INO
30 #define UF_NODUMP EXT2_NODUMP_FL
33 #define howmany(x,y) (((x)+((y)-1))/(y))
34 #define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
35 #define powerof2(x) ((((x)-1)&(x))==0)
37 #define dbtob(b) ((unsigned)(b) << DEV_BSHIFT)
38 #define fsbtodb(sb,b) ((int)(((long long)b * EXT2_BLOCK_SIZE(sb->super)) / DEV_BSIZE))
41 #define fs_fsize fragsize
42 #define fs_bsize blocksize
43 #define fs_size super->s_blocks_count
51 #define IFSOCK S_IFSOCK
56 typedef __u64 u_quad_t
;
60 * The BSD dump format reserves 4 bytes for a time_t, but other architectures
61 * (notably axp) have larger time_t. ctime4() is a modified ctime() which
62 * always accepts short 4-byte times. time4() is a similarly modified time().
64 #define ctime4(timep) ({ time_t t = *(timep); ctime(&t); })
65 #define time4(timep) ({time_t t; t = time(0); if (timep) *timep=t; t; })
68 * This is the ext2_inode structure but the fields have been renamed
69 * to match 4.4BSD's names
74 #define NINDIR(fs) EXT2_ADDR_PER_BLOCK(fs->super)
89 daddr_t di_db
[NDADDR
];
90 daddr_t di_ib
[NIADDR
];
101 #define di_rdev di_db[0]
102 /* #define di_ouid di_uid */
103 /* #define di_ogid di_gid */
106 * This is the ext2_dir_entry structure but the fields have been renamed
107 * to match 4.4BSD's names
109 * This is the 4.4BSD directory entry structure
111 #define DIRBLKSIZ DEV_BSIZE
113 #define MAXNAMLEN 255
125 char d_name
[MAXNAMLEN
+ 1];
129 * Convert between stat structure types and directory types.
131 #define IFTODT(mode) (((mode) & 0170000) >> 12)
132 #define DTTOIF(dirtype) ((dirtype) << 12)
135 * The DIRSIZ macro gives the minimum record length which will hold
136 * the directory entry. This requires the amount of space in struct direct
137 * without the d_name field, plus enough space for the name with a terminating
138 * null byte (dp->d_namlen+1), rounded up to a 4 byte boundary.
141 #if (BYTE_ORDER == LITTLE_ENDIAN)
142 #define DIRSIZ(oldfmt, dp) \
144 ((sizeof (struct direct) - (MAXNAMLEN+1)) + (((dp)->d_type+1 + 3) &~ 3)) : \
145 ((sizeof (struct direct) - (MAXNAMLEN+1)) + (((dp)->d_namlen+1 + 3) &~ 3)))
147 #define DIRSIZ(oldfmt, dp) \
148 ((sizeof (struct direct) - (MAXNAMLEN+1)) + (((dp)->d_namlen+1 + 3) &~ 3))
152 #define DIRSIZ(oldfmt,dp) EXT2_DIR_REC_LEN(((dp)->d_namlen & 0xff) + 1)
157 * This is the old (Net/2) BSD inode structure
158 * copied from the FreeBSD 1.1.5.1 <ufs/dinode.h> include file
160 #define MAXFASTLINK (((NDADDR + NIADDR) * sizeof(unsigned long)) - 1)
162 struct old_bsd_inode
{
184 daddr_t di_udb
[NDADDR
];
185 daddr_t di_uib
[NIADDR
];
187 char di_usymlink
[MAXFASTLINK
+ 1];
190 daddr_t di_db
[NDADDR
];
191 daddr_t di_ib
[NIADDR
];
199 struct bsdtimeval
{ /* XXX alpha-*-linux is deviant */
205 * This is the new (4.4) BSD inode structure
206 * copied from the FreeBSD 2.0 <ufs/ufs/dinode.h> include file
208 struct new_bsd_inode
{
216 struct bsdtimeval di_atime
;
217 struct bsdtimeval di_mtime
;
218 struct bsdtimeval di_ctime
;
219 daddr_t di_db
[NDADDR
];
220 daddr_t di_ib
[NIADDR
];
229 #define di_ouid di_u.oldids[0]
230 #define di_ogid di_u.oldids[1]