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https://github.com/spiffcode/hostile-takeover.git
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164 lines
3.8 KiB
C++
164 lines
3.8 KiB
C++
#ifndef __PACKFILE_H__
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#define __PACKFILE_H__
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#include "inc/basictypes.h"
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#include "mpshared/pdbreader.h"
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#include "mpshared/enum.h"
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namespace wi {
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#if !defined(PIL)
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// Pdb structs
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#define dmDBNameLength 32
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typedef unsigned char UInt8;
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typedef unsigned short UInt16;
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typedef unsigned int UInt32;
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typedef unsigned int LocalID;
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typedef char Char;
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struct RecordEntryType {
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LocalID localChunkID; // local chunkID of a record
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UInt8 attributes; // record attributes;
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UInt8 uniqueID[3]; // unique ID of record; should
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// not be 0 for a legal record.
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};
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struct RecordListType {
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LocalID nextRecordListID; // local chunkID of next list
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UInt16 numRecords; // number of records in this list
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UInt16 firstEntry; // array of Record/Rsrc entries
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// starts here
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};
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struct DatabaseHdrType {
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char name[dmDBNameLength]; // 0 name of database
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UInt16 attributes; // 32 database attributes
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UInt16 version; // 34 version of database
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UInt32 creationDate; // 36 creation date of database
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UInt32 modificationDate; // 40 latest modification date
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UInt32 lastBackupDate; // 44 latest backup date
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UInt32 modificationNumber; // 48 modification number of database
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LocalID appInfoID; // 52 application specific info
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LocalID sortInfoID; // 56 app specific sorting info
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UInt32 type; // 60 database type
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UInt32 creator; // 64 database creator
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UInt32 uniqueIDSeed; // 68 used to generate unique IDs.
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// Note that only the low order
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// 3 bytes of this is used (in
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// RecordEntryType.uniqueID).
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// We are keeping 4 bytes for
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// alignment purposes.
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RecordListType recordList; // 72 first record list
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// 80
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};
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#endif // !defined(PIL)
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// PackFileReader. Exposes c-runtime prototype apis, calls PdbReader for data
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// access to pdbs created with packpdb.
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#ifndef kcbFilename
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#define kcbFilename 29
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#endif
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#if kcbFilename != 29
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#error kcbFilename must be 29
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#endif
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// DirEntry is fixed at 32
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struct DirEntry // dir
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{
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char szFn[kcbFilename];
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byte cRecs;
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word nRecFirst;
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};
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struct ReaderInfo // rnfo
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{
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PdbReader *ppdbReader;
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DirEntry *pdir;
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char *pszDir;
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char *pszFn;
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void *pvCookie;
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int cEntries;
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int cOpen;
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};
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// Passed to fopen, etc.
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struct File
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{
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ReaderInfo *prnfo;
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dword cbTotal;
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dword offRecStart;
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dword offStream;
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byte nRecOffStream;
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byte cRecs;
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word nRecFirst;
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word acb[1];
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};
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// Used for MapFile / UnmapFile
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struct FileMap // fmap
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{
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ReaderInfo *prnfo;
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void *pvCookie;
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dword nRec;
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dword dwPad;
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byte *pbAlloced;
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};
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#define PACKENUM_FIRST 0
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#define PACKENUM_LAST 1
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#ifndef USE_PALM_UNIX_HEADERS
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class PackFileReader // pakr
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{
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public:
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PackFileReader();
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~PackFileReader();
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File *fopen(const char *pszFn, const char *pszMode);
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int fclose(File *pfil);
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dword fread(void *pv, dword cb, int c, File *pfil);
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int fseek(File *pfil, int off, int nOrigin);
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dword ftell(File *pfil);
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bool EnumFiles(Enum *penm, int key, char *pszFn, int cbFn);
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void *MapFile(const char *pszFn, FileMap *pfmap, dword *pcb = NULL);
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void UnmapFile(FileMap *pfmap);
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bool HashFile(const char *pszFn, byte *hash);
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bool GetPdbName(const char *pszFn, char *pszPdb, int cbPdb,
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char *pszDir = NULL, int cbDir = 0);
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bool Push(const char *pszDir, const char *pszFn);
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bool Pop();
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bool Delete(const char *pszDir, const char *pszFn);
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private:
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virtual PdbReader *OpenPdb(const char *pszDir, const char *pszFn) = 0;
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virtual bool DeletePdb(const char *pszDir, const char *pszFn) = 0;
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bool Push(const char *pszDir, const char *pszFn, PdbReader *ppdbReader);
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bool FindDirEntry(const char *psz, DirEntry *pdir, ReaderInfo **pprnfo);
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void RemoveReader(int rnfo);
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int m_crnfo;
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int m_crnfoAlloc;
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ReaderInfo *m_arnfo;
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};
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#endif
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#ifndef SEEK_CUR
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#define SEEK_CUR 1
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#define SEEK_END 2
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#define SEEK_SET 0
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#endif
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} // namespace wi
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#endif // __PACKFILE_H__
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