129 lines
3.8 KiB
C
129 lines
3.8 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 PRODOS_BYTES_PER_BLOCK 0x200
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#define PRODOS_VOLNAME_LEN 15
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#define PRODOS_FILENAME_LEN 15
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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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#define PRODOS_TYPE_TXT 0x04
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#define PRODOS_TYPE_BIN 0x06
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#define PRODOS_TYPE_BAS 0xFC
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#define PRODOS_TYPE_VAR 0xFD
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#define PRODOS_TYPE_SYS 0xFF
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/* Normal access is $C3 */
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/* Locked file is $01 */
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/* Non-empty directories often locked? */
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#define PRODOS_ACCESS_DESTROY 0x80 // can be deleted
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#define PRODOS_ACCESS_RENAME 0x40
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#define PRODOS_ACCESS_CHANGED 0x20 // has been changed since last backup
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#define PRODOS_ACCESS_WRITE 0x02
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#define PRODOS_ACCESS_READ 0x01
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struct voldir_t {
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int fd;
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int interleave;
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int image_offset;
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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 subdir_t {
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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 char parent_entry;
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unsigned char parent_entry_length;
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unsigned short file_count;
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unsigned short parent_pointer;
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// unsigned short next_block;
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// unsigned short bit_map_pointer;
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// unsigned short total_blocks;
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unsigned char subdir_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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/* 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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/* prodos_catalog.c */
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int prodos_find_next_file(int inode, struct voldir_t *voldir);
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int prodos_populate_filedesc(unsigned char *file_desc,
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struct file_entry_t *file_entry);
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//unsigned char prodos_char_to_type(char type, int lock);
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void prodos_catalog(struct voldir_t *voldir, int dir_block, char *path);
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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);
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int prodos_showfree(struct voldir_t *voldir);
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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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int prodos_write_block(struct voldir_t *voldir,unsigned char *block, int blocknum);
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/* prodos_voldir.c */
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int prodos_sync_voldir(struct voldir_t *voldir);
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int prodos_change_volume_name(struct voldir_t *voldir, char *volname);
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int prodos_init_voldir(int fd, struct voldir_t *voldir,
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int interleave, int image_offset);
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int prodos_read_voldir(struct voldir_t *voldir);
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/* prodos_time.c */
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int prodos_time(time_t t);
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