Return to lib_interface.h CVS log

Up to [GPL Stacker compression] / dmsdos / src

Annotation of dmsdos/src/lib_interface.h, revision 1.1

1.1     ! root        1: /*
        !             2: lib_interface.h
        !             3: 
        !             4: DMSDOS library: headers for interface functions, hacks, dummies, and fakes.
        !             5: 
        !             6: ******************************************************************************
        !             7: DMSDOS (compressed MSDOS filesystem support) for Linux
        !             8: written 1995-1998 by Frank Gockel and Pavel Pisa
        !             9: 
        !            10:     (C) Copyright 1995-1998 by Frank Gockel
        !            11:     (C) Copyright 1996-1998 by Pavel Pisa
        !            12: 
        !            13: Some code of dmsdos has been copied from the msdos filesystem
        !            14: so there are the following additional copyrights:
        !            15: 
        !            16:     (C) Copyright 1992,1993 by Werner Almesberger (msdos filesystem)
        !            17:     (C) Copyright 1994,1995 by Jacques Gelinas (mmap code)
        !            18:     (C) Copyright 1992-1995 by Linus Torvalds
        !            19: 
        !            20: DMSDOS was inspired by the THS filesystem (a simple doublespace
        !            21: DS-0-2 compressed read-only filesystem) written 1994 by Thomas Scheuermann.
        !            22: 
        !            23: The DMSDOS code is distributed under the Gnu General Public Licence.
        !            24: See file COPYING for details.
        !            25: ******************************************************************************
        !            26: 
        !            27: */
        !            28: 
        !            29: /* These are copied from the kernel include files in order to avoid
        !            30:    including those files. They are not 100% identical to the kernel types.
        !            31:    Most of them needn't be the same as in the kernel.
        !            32:    This has been done for libc6 support.
        !            33: */
        !            34: 
        !            35: /* this defines machine-dependent __u8, __s8 etc. types */
        !            36: #include<asm/types.h>
        !            37: 
        !            38: int printk(const char *fmt, ...);
        !            39: void panic(const char * fmt, ...);
        !            40: 
        !            41: #define MOD_INC_USE_COUNT
        !            42: #define MOD_DEC_USE_COUNT
        !            43: 
        !            44: #define SECTOR_SIZE 512
        !            45: #define SECTOR_BITS 9
        !            46: #define MSDOS_DPB       (MSDOS_DPS) /* dir entries per block */
        !            47: #define MSDOS_DPB_BITS  4 /* log2(MSDOS_DPB) */
        !            48: #define MSDOS_DPS       (SECTOR_SIZE/sizeof(struct msdos_dir_entry))
        !            49: #define MSDOS_DPS_BITS  4 /* log2(MSDOS_DPS) */
        !            50: #define MSDOS_DIR_BITS  5 /* log2(sizeof(struct msdos_dir_entry)) */
        !            51: 
        !            52: #define MSDOS_SUPER_MAGIC 0x4d44 /* MD */
        !            53: 
        !            54: #define MSDOS_MAX_EXTRA 3 /* tolerate up to that number of clusters which are
        !            55:                              inaccessible because the FAT is too short */
        !            56: 
        !            57: #define KERN_EMERG      "<0>"   /* system is unusable                   */
        !            58: #define KERN_ALERT      "<1>"   /* action must be taken immediately     */
        !            59: #define KERN_CRIT       "<2>"   /* critical conditions                  */
        !            60: #define KERN_ERR        "<3>"   /* error conditions                     */
        !            61: #define KERN_WARNING    "<4>"   /* warning conditions                   */
        !            62: #define KERN_NOTICE     "<5>"   /* normal but significant condition     */
        !            63: #define KERN_INFO       "<6>"   /* informational                        */
        !            64: #define KERN_DEBUG      "<7>"   /* debug-level messages                 */
        !            65: 
        !            66: struct buffer_head {
        !            67:         unsigned long b_blocknr;        /* block number */
        !            68:         char * b_data;                  /* pointer to data block */
        !            69: };
        !            70: 
        !            71: #define MS_RDONLY   1      /* Mount read-only */
        !            72: #define MSDOS_SB(s) (&((s)->u.msdos_sb))
        !            73: 
        !            74: struct msdos_sb_info {
        !            75:         unsigned short cluster_size; /* sectors/cluster */
        !            76:         unsigned char fats,fat_bits; /* number of FATs, FAT bits (12 or 16) */
        !            77:         unsigned short fat_start,fat_length; /* FAT start & length (sec.) */
        !            78:         unsigned short dir_start,dir_entries; /* root dir start & entries */
        !            79:         unsigned short data_start;   /* first data sector */
        !            80:         unsigned long clusters;      /* number of clusters */
        !            81:         unsigned long root_cluster;  /* first cluster of the root directory */
        !            82:         unsigned long fsinfo_offset; /* FAT32 fsinfo offset from start of disk */
        !            83:         void *fat_wait;
        !            84:         int fat_lock;
        !            85:         int prev_free;               /* previously returned free cluster number */
        !            86:         int free_clusters;           /* -1 if undefined */
        !            87:         /*struct fat_mount_options options;*/
        !            88:         struct nls_table *nls_disk;  /* Codepage used on disk */
        !            89:         struct nls_table *nls_io;    /* Charset used for input and display */
        !            90:         struct cvf_format* cvf_format;
        !            91:         void* private_data;
        !            92: };
        !            93: 
        !            94: struct super_block {
        !            95:         int s_dev;
        !            96:         unsigned long s_blocksize;
        !            97:         unsigned char s_blocksize_bits;
        !            98:         unsigned long s_flags;
        !            99:         unsigned long s_magic;
        !           100:         union {
        !           101:                 struct msdos_sb_info msdos_sb;
        !           102:         } u;
        !           103: 
        !           104: };
        !           105: 
        !           106: struct fat_boot_sector {
        !           107:         __s8    ignored[3];     /* Boot strap short or near jump */
        !           108:         __s8    system_id[8];   /* Name - can be used to special case
        !           109:                                    partition manager volumes */
        !           110:         __u8    sector_size[2]; /* bytes per logical sector */
        !           111:         __u8    cluster_size;   /* sectors/cluster */
        !           112:         __u16   reserved;       /* reserved sectors */
        !           113:         __u8    fats;           /* number of FATs */
        !           114:         __u8    dir_entries[2]; /* root directory entries */
        !           115:         __u8    sectors[2];     /* number of sectors */
        !           116:         __u8    media;          /* media code (unused) */
        !           117:         __u16   fat_length;     /* sectors/FAT */
        !           118:         __u16   secs_track;     /* sectors per track */
        !           119:         __u16   heads;          /* number of heads */
        !           120:         __u32   hidden;         /* hidden sectors (unused) */
        !           121:         __u32   total_sect;     /* number of sectors (if sectors == 0) */
        !           122:         /* The following fields are only used by FAT32 */
        !           123:         __u32   fat32_length;   /* sectors/FAT */
        !           124:         __u16   flags;          /* bit 8: fat mirroring, low 4: active fat */
        !           125:         __u8    version[2];     /* major, minor filesystem version */
        !           126:         __u32   root_cluster;   /* first cluster in root directory */
        !           127:         __u16   info_sector;    /* filesystem info sector */
        !           128:         __u16   backup_boot;    /* backup boot sector */
        !           129:         __u16   reserved2[6];   /* Unused */
        !           130: };
        !           131: 
        !           132: #define MALLOC malloc
        !           133: #define FREE free
        !           134: #define kmalloc(x,y) malloc(x)
        !           135: #define kfree free
        !           136: #define CURRENT_TIME time(NULL)
        !           137: #define vmalloc malloc
        !           138: #define vfree free

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.