/* * ADF Library. (C) 1997-1998 Laurent Clevy * * adf_blk.h * * general blocks structures */ #ifndef ADF_BLK_H #define ADF_BLK_H 1 #define ULONG unsigned long #define USHORT unsigned short #define UCHAR unsigned char #define LOGICAL_BLOCK_SIZE 512 /* ----- FILE SYSTEM ----- */ #define FSMASK_FFS 1 #define FSMASK_INTL 2 #define FSMASK_DIRCACHE 4 #define isFFS(c) ((c)&FSMASK_FFS) #define isOFS(c) (!((c)&FSMASK_FFS)) #define isINTL(c) ((c)&FSMASK_INTL) #define isDIRCACHE(c) ((c)&FSMASK_DIRCACHE) /* ----- ENTRIES ----- */ /* access constants */ #define ACCMASK_D (1<<0) #define ACCMASK_E (1<<1) #define ACCMASK_W (1<<2) #define ACCMASK_R (1<<3) #define ACCMASK_A (1<<4) #define ACCMASK_P (1<<5) #define ACCMASK_S (1<<6) #define ACCMASK_H (1<<7) #define hasD(c) ((c)&ACCMASK_D) #define hasE(c) ((c)&ACCMASK_E) #define hasW(c) ((c)&ACCMASK_W) #define hasR(c) ((c)&ACCMASK_R) #define hasA(c) ((c)&ACCMASK_A) #define hasP(c) ((c)&ACCMASK_P) #define hasS(c) ((c)&ACCMASK_S) #define hasH(c) ((c)&ACCMASK_H) /* ----- BLOCKS ----- */ /* block constants */ #define BM_VALID -1 #define BM_INVALID 0 #define HT_SIZE 72 #define BM_SIZE 25 #define MAX_DATABLK 72 #define MAXNAMELEN 30 #define MAXCMMTLEN 79 /* block primary and secondary types */ #define T_HEADER 2 #define ST_ROOT 1 #define ST_DIR 2 #define ST_FILE -3 #define ST_LFILE -4 #define ST_LDIR 4 #define ST_LSOFT 3 #define T_LIST 16 #define T_DATA 8 #define T_DIRC 33 /*--- blocks structures --- */ struct bBootBlock { /*000*/ char dosType[4]; /*004*/ ULONG checkSum; /*008*/ long rootBlock; /*00c*/ UCHAR data[500+512]; }; struct bRootBlock { /*000*/ long type; long headerKey; long highSeq; /*00c*/ long hashTableSize; long firstData; /*014*/ ULONG checkSum; /*018*/ long hashTable[HT_SIZE]; /* hash table */ /*138*/ long bmFlag; /* bitmap flag, -1 means VALID */ /*13c*/ long bmPages[BM_SIZE]; /*1a0*/ long bmExt; /*1a4*/ long cDays; /* creation date FFS and OFS */ /*1a8*/ long cMins; /*1ac*/ long cTicks; /*1b0*/ char nameLen; /*1b1*/ char diskName[MAXNAMELEN+1]; char r2[8]; /*1d8*/ long days; /* last access : days after 1 jan 1978 */ /*1dc*/ long mins; /* hours and minutes in minutes */ /*1e0*/ long ticks; /* 1/50 seconds */ /*1e4*/ long coDays; /* creation date OFS */ /*1e8*/ long coMins; /*1ec*/ long coTicks; long nextSameHash; /* == 0 */ long parent; /* == 0 */ /*1f8*/ long extension; /* FFS: first directory cache block */ /*1fc*/ long secType; /* == 1 */ }; struct bFileHeaderBlock { /*000*/ long type; /* == 2 */ /*004*/ long headerKey; /* current block number */ /*008*/ long highSeq; /* number of data block in this hdr block */ /*00c*/ long dataSize; /* == 0 */ /*010*/ long firstData; /*014*/ ULONG checkSum; /*018*/ long dataBlocks[MAX_DATABLK]; /*138*/ long r1; /*13c*/ long r2; /*140*/ long access; /* bit0=del, 1=modif, 2=write, 3=read */ /*144*/ unsigned long byteSize; /*148*/ char commLen; /*149*/ char comment[MAXCMMTLEN+1]; char r3[91-(MAXCMMTLEN+1)]; /*1a4*/ long days; /*1a8*/ long mins; /*1ac*/ long ticks; /*1b0*/ char nameLen; /*1b1*/ char fileName[MAXNAMELEN+1]; long r4; /*1d4*/ long real; /* unused == 0 */ /*1d8*/ long nextLink; /* link chain */ long r5[5]; /*1f0*/ long nextSameHash; /* next entry with sane hash */ /*1f4*/ long parent; /* parent directory */ /*1f8*/ long extension; /* pointer to extension block */ /*1fc*/ long secType; /* == -3 */ }; /*--- file header extension block structure ---*/ struct bFileExtBlock { /*000*/ long type; /* == 0x10 */ /*004*/ long headerKey; /*008*/ long highSeq; /*00c*/ long dataSize; /* == 0 */ /*010*/ long firstData; /* == 0 */ /*014*/ ULONG checkSum; /*018*/ long dataBlocks[MAX_DATABLK]; long r[45]; long info; /* == 0 */ long nextSameHash; /* == 0 */ /*1f4*/ long parent; /* header block */ /*1f8*/ long extension; /* next header extension block */ /*1fc*/ long secType; /* -3 */ }; struct bDirBlock { /*000*/ long type; /* == 2 */ /*004*/ long headerKey; /*008*/ long highSeq; /* == 0 */ /*00c*/ long hashTableSize; /* == 0 */ long r1; /* == 0 */ /*014*/ ULONG checkSum; /*018*/ long hashTable[HT_SIZE]; /* hash table */ long r2[2]; /*140*/ long access; long r4; /* == 0 */ /*148*/ char commLen; /*149*/ char comment[MAXCMMTLEN+1]; char r5[91-(MAXCMMTLEN+1)]; /*1a4*/ long days; /* last access */ /*1a8*/ long mins; /*1ac*/ long ticks; /*1b0*/ char nameLen; /*1b1*/ char dirName[MAXNAMELEN+1]; long r6; /*1d4*/ long real; /* ==0 */ /*1d8*/ long nextLink; /* link list */ long r7[5]; /*1f0*/ long nextSameHash; /*1f4*/ long parent; /*1f8*/ long extension; /* FFS : first directory cache */ /*1fc*/ long secType; /* == 2 */ }; struct bOFSDataBlock{ /*000*/ long type; /* == 8 */ /*004*/ long headerKey; /* pointer to file_hdr block */ /*008*/ long seqNum; /* file data block number */ /*00c*/ long dataSize; /* <= 0x1e8 */ /*010*/ long nextData; /* next data block */ /*014*/ ULONG checkSum; /*018*/ UCHAR data[488]; /*200*/ }; /* --- bitmap --- */ struct bBitmapBlock { /*000*/ ULONG checkSum; /*004*/ ULONG map[127]; }; struct bBitmapExtBlock { /*000*/ long bmPages[127]; /*1fc*/ long nextBlock; }; struct bLinkBlock { /*000*/ long type; /* == 2 */ /*004*/ long headerKey; /* self pointer */ long r1[3]; /*014*/ ULONG checkSum; /*018*/ char realName[64]; long r2[83]; /*1a4*/ long days; /* last access */ /*1a8*/ long mins; /*1ac*/ long ticks; /*1b0*/ char nameLen; /*1b1*/ char name[MAXNAMELEN+1]; long r3; /*1d4*/ long realEntry; /*1d8*/ long nextLink; long r4[5]; /*1f0*/ long nextSameHash; /*1f4*/ long parent; long r5; /*1fc*/ long secType; /* == -4, 4, 3 */ }; /*--- directory cache block structure ---*/ struct bDirCacheBlock { /*000*/ long type; /* == 33 */ /*004*/ long headerKey; /*008*/ long parent; /*00c*/ long recordsNb; /*010*/ long nextDirC; /*014*/ ULONG checkSum; /*018*/ unsigned char records[488]; }; #endif /* ADF_BLK_H */ /*##########################################################################*/