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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 <stelian@popies.net>, 1999-2000
6 * Stelian Pop <stelian@popies.net> - AlcĂ´ve <www.alcove.com>, 2000-2002
8 * $Id: bsdcompat.h,v 1.23 2004/07/01 09:14:48 stelian Exp $
14 #include <ext2fs/ext2fs.h>
16 #define __dead volatile
17 #define UNUSED(x) x __attribute__ ((unused))
24 #define MIN(a,b) ((a < b) ? a : b)
32 #define MAXBSIZE EXT2_MAX_BLOCK_SIZE
33 #define ROOTINO EXT2_ROOT_INO
38 #define UF_NODUMP EXT2_NODUMP_FL
42 #define howmany(x,y) (((x)+((y)-1))/(y))
45 #define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
48 #define powerof2(x) ((((x)-1)&(x))==0)
51 #define fsbtodb(sb,b) ((ext2_loff_t)(((long long)(b) * EXT2_BLOCK_SIZE((sb)->super)) / DEV_BSIZE))
52 #define dbtofsb(sb,b) ((int)(((long long)(b) * DEV_BSIZE) / EXT2_BLOCK_SIZE((sb)->super)))
55 #define fs_fsize fragsize
56 #define fs_bsize blocksize
57 #define fs_size super->s_blocks_count
65 #define IFSOCK S_IFSOCK
70 typedef __u64 u_quad_t
;
74 * The BSD dump format reserves 4 bytes for a time_t, but other architectures
75 * (notably axp) have larger time_t. ctime4() is a modified ctime() which
76 * always accepts short 4-byte times.
78 #define ctime4(timep) ({ time_t t = *(timep); ctime(&t); })
81 * This is the ext2_inode structure but the fields have been renamed
82 * to match 4.4BSD's names
87 #define NINDIR(fs) EXT2_ADDR_PER_BLOCK(fs->super)
91 typedef uint16_t __u16
;
92 typedef uint32_t __u32
;
94 typedef int16_t __s16
;
95 typedef int32_t __s32
;
97 typedef unsigned int u_int
;
100 typedef unsigned short u_int16_t
;
103 typedef unsigned char u_char
;
105 typedef int64_t quad_t
;
135 #define di_rdev di_db[0]
136 /* #define di_ouid di_uid */
137 /* #define di_ogid di_gid */
138 #define di_size_high di_dir_acl
141 * This is the ext2_dir_entry structure but the fields have been renamed
142 * to match 4.4BSD's names
144 * This is the 4.4BSD directory entry structure
146 #define DIRBLKSIZ DEV_BSIZE
148 #define MAXNAMLEN 255
152 #define MAXNAMLEN 255
174 #define d_fileno d_ino
178 * The direct structure used by dump/restore.
185 char d_name
[MAXNAMLEN
+ 1];
188 * Convert between stat structure types and directory types.
190 #define IFTODT(mode) (((mode) & 0170000) >> 12)
191 #define DTTOIF(dirtype) ((dirtype) << 12)
194 * The DIRSIZ macro gives the minimum record length which will hold
195 * the directory entry. This requires the amount of space in struct direct
196 * without the d_name field, plus enough space for the name with a terminating
197 * null byte (dp->d_namlen+1), rounded up to a 4 byte boundary.
201 #if (BYTE_ORDER == LITTLE_ENDIAN)
202 #define DIRSIZ(oldfmt, dp) \
204 ((sizeof (struct direct) - (MAXNAMLEN+1)) + (((dp)->d_type+1 + 3) &~ 3)) : \
205 ((sizeof (struct direct) - (MAXNAMLEN+1)) + (((dp)->d_namlen+1 + 3) &~ 3)))
206 #else /* BYTE_ORDER */
207 #define DIRSIZ(oldfmt, dp) \
208 ((sizeof (struct direct) - (MAXNAMLEN+1)) + (((dp)->d_namlen+1 + 3) &~ 3))
211 #define DIRSIZ(oldfmt,dp) EXT2_DIR_REC_LEN(((dp)->d_namlen & 0xff) + 1)
213 #else /* __linux__ */
214 #define DIRSIZ(oldfmt, dp) \
215 ((sizeof (struct direct) - (MAXNAMLEN+1)) + (((dp)->d_namlen+1 + 3) &~ 3))
219 * This is the old (Net/2) BSD inode structure
220 * copied from the FreeBSD 1.1.5.1 <ufs/dinode.h> include file
222 #define MAXFASTLINK (((NDADDR + NIADDR) * sizeof(unsigned long)) - 1)
224 struct old_bsd_inode
{
246 daddr_t di_udb
[NDADDR
];
247 daddr_t di_uib
[NIADDR
];
249 char di_usymlink
[MAXFASTLINK
+ 1];
261 struct bsdtimeval
{ /* XXX alpha-*-linux is deviant */
267 * This is the new (4.4) BSD inode structure
268 * copied from the FreeBSD 2.0 <ufs/ufs/dinode.h> include file
270 struct new_bsd_inode
{
278 struct bsdtimeval di_atime
;
279 struct bsdtimeval di_mtime
;
280 struct bsdtimeval di_ctime
;
291 #define di_ouid di_u.oldids[0]
292 #define di_ogid di_u.oldids[1]