| 1 | /* rawfs.h - Raw Minix file system support. Author: Kees J. Bot
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| 2 | *
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| 3 | * off_t r_super(int *block_size);
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| 4 | * Initialize variables, returns the size of a valid Minix
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| 5 | * file system blocks, but zero on error.
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| 6 | *
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| 7 | * void r_stat(ino_t file, struct stat *stp);
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| 8 | * Return information about a file like stat(2) and
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| 9 | * remembers file for the next two calls.
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| 10 | *
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| 11 | * off_t r_vir2abs(off_t virblockno);
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| 12 | * Translate virtual block number in file to absolute
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| 13 | * disk block number. Returns 0 if the file contains
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| 14 | * a hole, or -1 if the block lies past the end of file.
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| 15 | *
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| 16 | * ino_t r_readdir(char *name);
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| 17 | * Return next directory entry or 0 if there are no more.
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| 18 | * Returns -1 and sets errno on error.
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| 19 | *
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| 20 | * ino_t r_lookup(ino_t cwd, char *path);
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| 21 | * A utility function that translates a pathname to an
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| 22 | * inode number. It starts from directory "cwd" unless
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| 23 | * path starts with a '/', then from ROOT_INO.
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| 24 | * Returns 0 and sets errno on error.
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| 25 | *
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| 26 | * One function needs to be provided by the outside world:
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| 27 | *
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| 28 | * void readblock(off_t blockno, char *buf, int block_size);
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| 29 | * Read a block into the buffer. Outside world handles
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| 30 | * errors.
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| 31 | */
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| 32 |
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| 33 | #define ROOT_INO ((ino_t) 1) /* Inode nr of root dir. */
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| 34 |
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| 35 | off_t r_super(int *);
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| 36 | void r_stat(Ino_t file, struct stat *stp);
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| 37 | off_t r_vir2abs(off_t virblockno);
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| 38 | ino_t r_readdir(char *name);
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| 39 | ino_t r_lookup(Ino_t cwd, char *path);
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| 40 |
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| 41 | /*
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| 42 | * $PchId: rawfs.h,v 1.4 1996/04/19 08:16:36 philip Exp $
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| 43 | */
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