rom/filesys/CDVDFS/src/hfs.h

   1 #ifndef HFS_H
   2 #define HFS_H
   3 /* hfs.h: */
   4
   5 typedef struct ext_descr {
   6   t_ushort      StABN;
   7   t_ushort      NumABlks;
   8 } t_ext_descr;
   9
  10 typedef t_ext_descr t_extdatarec[3];
  11
  12 /* Force word alignment for MorphOS on PowerPC.
  13    Note that there are a lot of words and longwords in these
  14    structures and there are no endianess checking so MacHFS
  15    support is probably broken in AROS on little-endian architectures.
  16    Also note that all structures on MacHFS CD are word-aligned as required
  17    by Motorola m68000 CPU.
  18    All this needs to be fixed - Pavel Fedin <sonic_amiga@rambler.ru> */
  19 #ifdef __MORPHOS__
  20 #pragma pack(2)
  21 #endif
  22
  23 typedef struct mdb {
  24   t_ushort      SigWord;
  25   t_ulong       CrDate;
  26   t_ulong       LsMod;
  27   t_ushort      Atrb;
  28   t_ushort      NmFls;
  29   t_ushort      VBMSt;
  30   t_ushort      AllocPtr;
  31   t_ushort      NmAlBlks;
  32   t_ulong       AlBlkSiz;
  33   t_ulong       ClpSiz;
  34   t_ushort      AlBlSt;
  35   t_ulong       NxtCNID;
  36   t_ushort      FreeBks;
  37   t_uchar       VolNameLen;
  38   t_uchar       VolName[27];
  39   t_ulong       VolBkUp;
  40   t_ushort      VSeqNum;
  41   t_ulong       WrCnt;
  42   t_ulong       XTClpSiz;
  43   t_ulong       CTClpSiz;
  44   t_ushort      NmRtDirs;
  45   t_ulong       FilCnt;
  46   t_ulong       DirCnt;
  47   t_ulong       FndrInfo[8];
  48   t_ushort      VCSize;
  49   t_ushort      VBMCSize;
  50   t_ushort      CtlCSize;
  51   t_ulong       XTFlSize;
  52   t_extdatarec  XTExtRec;
  53   t_ulong       CTFlSize;
  54   t_extdatarec  CTExtRec;
  55 } t_mdb;
  56
  57 typedef struct node_descr {
  58   t_ulong       FLink;
  59   t_ulong       BLink;
  60   t_uchar       Type;
  61   t_uchar       NHeight;
  62   t_ushort      NRecs;
  63   t_ushort      Reserved;
  64 } t_node_descr;
  65
  66 typedef struct hdr_node {
  67   t_node_descr  node_descr;
  68   t_ushort      Depth;
  69   t_ulong       Root;
  70   t_ulong       NRecs;
  71   t_ulong       FNode;
  72   t_ulong       LNode;
  73   t_ushort      NodeSize;
  74   t_ushort      KeyLen;
  75   t_ulong       NNodes;
  76   t_ulong       Free;
  77 } t_hdr_node;
  78
  79 typedef struct idx_record {
  80   char          length; /* always 0x25 */
  81   char          reserved;
  82   t_ulong       parent_id;
  83   t_uchar       name_length;
  84   char          name[31];
  85   t_ulong       pointer;
  86 } t_idx_record;
  87
  88 typedef struct leaf_record {
  89   char          length;
  90   char          reserved;
  91   t_ulong       parent_id;
  92   t_uchar       name_length;
  93   char          name[1];
  94 } t_leaf_record;
  95
  96 typedef struct dir_record {
  97   char          type;
  98   char          reserved;
  99   t_ushort      Flags;
 100   t_ushort      Val;
 101   t_ulong       DirID;
 102   t_ulong       CrDat;
 103   t_ulong       MdDat;
 104   t_ulong       BkDat;
 105 } t_dir_record;
 106
 107 typedef struct file_record {
 108   char          type;
 109   char          reserved;
 110   char          Flags;
 111   char          Typ;
 112   char          FInfo[16];
 113   t_ulong       FlNum;
 114   t_ushort      StBlk;
 115   t_ulong       LgLen;
 116   t_ulong       PyLen;
 117   t_ushort      RStBlk;
 118   t_ulong       RLgLen;
 119   t_ulong       RPyLen;
 120   t_ulong       CrDat;
 121   t_ulong       MdDat;
 122   t_ulong       BkDat;
 123   char          FXInfo[16];
 124   t_ushort      ClpSize;
 125   t_extdatarec  ExtRec;
 126   t_extdatarec  RExtRec;
 127   t_ulong       Resrv;
 128 } t_file_record;
 129
 130 typedef struct dir_thread_record {
 131   char          type;
 132   char          reserved;
 133   t_ulong       Resrv[2];
 134   t_ulong       ParID;
 135   t_uchar       CNameLen;
 136   t_uchar       CName[31];
 137 } t_dir_thread_record;
 138
 139 typedef struct file_thread_record {
 140   char          type;
 141   char          reserved;
 142   t_ulong       Resrv[2];
 143   t_ulong       ParID;
 144   t_uchar       CNameLen;
 145   t_uchar       CName[31];
 146 } t_file_thread_record;
 147
 148 typedef union catalog_record {
 149   t_dir_record          d;
 150   t_file_record         f;
 151   t_dir_thread_record   dt;
 152   t_file_thread_record  ft;
 153 } t_catalog_record;
 154
 155 typedef struct hfs_vol_info {
 156   t_mdb                 mdb;
 157   int                   start_block;
 158   t_ulong               root_node;
 159 } t_hfs_vol_info;
 160
 161 typedef struct hfs_obj_info {
 162   t_bool                data_fork;
 163   t_ulong               parent_id;
 164   char                  name[50];
 165   t_catalog_record      cat_rec;
 166 } t_hfs_obj_info;
 167
 168 typedef struct leaf_record_pos {
 169   t_ulong               node;
 170   t_ushort              record;
 171   t_node_descr          node_descr;
 172   t_catalog_record      cat_rec;
 173   t_leaf_record         leaf_rec;
 174   char                  pad[32]; /* space for name from t_leaf_record */
 175 } t_leaf_record_pos;
 176
 177 #ifdef __MORPHOS__
 178 #pragma pack()
 179 #endif
 180
 181 int HFS_Find_Master_Directory_Block(CDROM *p_cd, t_mdb *p_mdb);
 182 t_bool Uses_HFS_Protocol(CDROM *p_cd, int *p_skip);
 183 t_bool HFS_Get_Header_Node
 184         (CDROM *p_cd,t_ulong p_mdb_pos,t_mdb *p_mdb,t_hdr_node *p_hdr_node);
 185 t_node_descr *HFS_Get_Node
 186         (CDROM *p_cd,t_ulong p_mdb_pos,t_mdb *p_mdb,t_ulong p_node);
 187 void Convert_Mac_Characters (char *p_buf, int p_buf_len);
 188
 189 t_bool HFS_Init_Vol_Info(VOLUME *p_volume, int p_start_block);
 190 #endif
 191