mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-09-29 08:55:10 +00:00
114 lines
3.1 KiB
C
114 lines
3.1 KiB
C
/* For now hard-coded */
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/* Could be made dynamic if we want to be useful */
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/* On dos3.2 disks, or larger filesystems */
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#define TRACKS_PER_DISK 0x23
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#define BLOCKS_PER_TRACK 0x8
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#define PRODOS_BYTES_PER_BLOCK 0x200
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#define PRODOS_INTERLEAVE_PRODOS 0x0
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#define PRODOS_INTERLEAVE_DOS33 0x1
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#define PRODOS_VOLDIR_KEY_BLOCK 0x02 // key block
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#define PRODOS_FILE_DESC_LEN 0x27
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#define PRODOS_FILE_DELETED 0x00
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#define PRODOS_FILE_SEEDLING 0x01
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#define PRODOS_FILE_SAPLING 0x02
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#define PRODOS_FILE_TREE 0x03
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#define PRODOS_FILE_SUBDIR 0x0d
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#define PRODOS_FILE_SUBDIR_HDR 0x0e
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#define PRODOS_FILE_VOLUME_HDR 0x0f
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struct voldir_t {
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int fd;
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int interleave;
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unsigned char storage_type;
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unsigned char name_length;
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unsigned char version;
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unsigned char min_version;
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unsigned char access;
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unsigned char entry_length;
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unsigned char entries_per_block;
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unsigned short next_block;
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unsigned short file_count;
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unsigned short bit_map_pointer;
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unsigned short total_blocks;
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unsigned char volume_name[16];
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unsigned int creation_time;
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};
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struct file_entry_t {
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unsigned char storage_type;
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unsigned char name_length;
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unsigned char file_name[16];
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unsigned char file_type;
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unsigned short key_pointer;
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unsigned short blocks_used;
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int eof;
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int creation_time;
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unsigned char version;
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unsigned char min_version;
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unsigned char access;
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unsigned short aux_type;
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int last_mod;
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unsigned short header_pointer;
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};
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/* CATALOG_VALUES */
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#define CATALOG_NEXT_T 0x01
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#define CATALOG_NEXT_S 0x02
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#define CATALOG_FILE_LIST 0x0b
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#define CATALOG_ENTRY_SIZE 0x23
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/* CATALOG ENTRY */
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#define FILE_TS_LIST_T 0x0
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#define FILE_TS_LIST_S 0x1
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#define FILE_TYPE 0x2
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#define FILE_NAME 0x3
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#define FILE_SIZE_L 0x21
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#define FILE_SIZE_H 0x22
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#define FILE_NAME_SIZE 0x1e
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/* TSL */
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#define TSL_NEXT_TRACK 0x1
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#define TSL_NEXT_SECTOR 0x2
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#define TSL_OFFSET_L 0x5
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#define TSL_OFFSET_H 0x6
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#define TSL_LIST 0xC
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#define TSL_ENTRY_SIZE 0x2
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#define TSL_MAX_NUMBER 122
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/* Helper Macros */
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#define TS_TO_INT(__x,__y) ((((int)__x)<<8)+__y)
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#define DISK_OFFSET(__track,__sector) ((((__track)*BLOCKS_PER_TRACK)+(__sector))*PRODOS_BYTES_PER_BLOCK)
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#define DOS33_FILE_NORMAL 0
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#define DOS33_FILE_DELETED 1
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/* prodos_volume_bitmap.c */
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int prodos_voldir_free_space(struct voldir_t *voldir);
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int prodos_voldir_free_block(struct voldir_t *voldir, int block);
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int prodos_voldir_reserve_block(struct voldir_t *voldir, int block);
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void prodos_voldir_dump_bitmap(struct voldir_t *voldir);
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int prodos_voldir_find_free_block(struct voldir_t *voldir,
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int *found_block);
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/* prodos_catalog.c */
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unsigned char prodos_char_to_type(char type, int lock);
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void prodos_catalog(int dos_fd, struct voldir_t *voldir);
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char *prodos_filename_to_ascii(char *dest,unsigned char *src,int len);
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unsigned char prodos_file_type(int value);
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/* prodos_dump.c */
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int prodos_dump(struct voldir_t *voldir, int fd);
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int prodos_showfree(struct voldir_t *voldir, int fd);
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/* prodos_read.c */
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int prodos_read_block(struct voldir_t *voldir,unsigned char *block, int blocknum);
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