ciderpress/app/ACUArchive.h

298 lines
10 KiB
C
Raw Normal View History

2007-03-27 17:47:10 +00:00
/*
* CiderPress
* Copyright (C) 2007 by faddenSoft, LLC. All Rights Reserved.
* See the file LICENSE for distribution terms.
*/
/*
* AppleLink Compression Utility archive support.
*/
Large set of changes to restore CiderPress build. CiderPress and MDC now compile, and execute far enough to open their respective "about" boxes, but I doubt they'll do much more than that. * Switch from MBCS to UNICODE APIs Microsoft switched to UTF-16 (by way of UCS-2) a long time ago, and the support for MBCS seems to be getting phased out. So it's time to switch to wide strings. This is a bit awkward for CiderPress because it works with disk and file archives with 8-bit filenames, and I want NufxLib and DiskImgLib to continue to work on Linux (which has largely taken the UTF-8 approach to Unicode). The libraries will continue to work with 8-bit filenames, with CiderPress/MDC doing the conversion at the appropriate point. There were a couple of places where strings from a structure handed back by one of the libraries were used directly in the UI, or vice-versa, which is a problem because we have nowhere to store the result of the conversion. These currently have fixed place-holder "xyzzy" strings. All UI strings are now wide. Various format strings now use "%ls" and "%hs" to explicitly specify wide and narrow. This doesn't play well with gcc, so only the Windows-specific parts use those. * Various updates to vcxproj files The project-file conversion had some cruft that is now largely gone. The build now has a common output directory for the EXEs and libraries, avoiding the old post-build copy steps. * Added zlib 1.2.8 and nufxlib 2.2.2 source snapshots The old "prebuilts" directory is now gone. The libraries are now built as part of building the apps. I added a minimal set of files for zlib, and a full set for nufxlib. The Linux-specific nufxlib goodies are included for the benefit of the Linux utilities, which are currently broken (don't build). * Replace symbols used for include guards Symbols with a leading "__" are reserved.
2014-11-10 23:32:55 +00:00
#ifndef APP_ACUARCHIVE_H
#define APP_ACUARCHIVE_H
2007-03-27 17:47:10 +00:00
#include "GenericArchive.h"
class AcuArchive;
/*
* One file in an ACU archive.
*/
class AcuEntry : public GenericEntry {
public:
AcuEntry(AcuArchive* pArchive) :
fpArchive(pArchive), fIsSqueezed(false), fOffset(-1)
{}
virtual ~AcuEntry(void) {}
virtual int ExtractThreadToBuffer(int which, char** ppText, long* pLength,
CString* pErrMsg) const override;
virtual int ExtractThreadToFile(int which, FILE* outfp, ConvertEOL conv,
ConvertHighASCII convHA, CString* pErrMsg) const override;
// doesn't matter
virtual long GetSelectionSerial(void) const override { return -1; }
virtual bool GetFeatureFlag(Feature feature) const override {
if (feature == kFeaturePascalTypes || feature == kFeatureDOSTypes ||
feature == kFeatureHasSimpleAccess)
return false;
else
return true;
}
/*
* Test this entry by extracting it.
*
* If the file isn't compressed, just make sure the file is big enough. If
* it's squeezed, invoke the un-squeeze function with a "NULL" buffer pointer.
*/
NuError TestEntry(CWnd* pMsgWnd);
bool GetSqueezed(void) const { return fIsSqueezed; }
void SetSqueezed(bool val) { fIsSqueezed = val; }
long GetOffset(void) const { return fOffset; }
void SetOffset(long offset) { fOffset = offset; }
2007-03-27 17:47:10 +00:00
private:
/*
* Copy data from the seeked archive to outfp, possibly converting EOL along
* the way.
*/
NuError CopyData(FILE* outfp, ConvertEOL conv, ConvertHighASCII convHA,
CString* pMsg) const;
//NuError BNYUnSqueeze(ExpandBuffer* outExp) const;
2007-03-27 17:47:10 +00:00
AcuArchive* fpArchive; // holds FILE* for archive
bool fIsSqueezed;
long fOffset;
2007-03-27 17:47:10 +00:00
};
/*
* ACU archive definition.
*/
class AcuArchive : public GenericArchive {
public:
2014-11-18 05:13:13 +00:00
AcuArchive(void) : fIsReadOnly(false), fFp(NULL)
{}
virtual ~AcuArchive(void) { (void) Close(); }
/*
* Perform one-time initialization. There really isn't any for us.
*
* Returns 0 on success, nonzero on error.
*/
static CString AppInit(void);
/*
* Open an ACU archive.
*
* Returns an error string on failure, or "" on success.
*/
Large set of changes to restore CiderPress build. CiderPress and MDC now compile, and execute far enough to open their respective "about" boxes, but I doubt they'll do much more than that. * Switch from MBCS to UNICODE APIs Microsoft switched to UTF-16 (by way of UCS-2) a long time ago, and the support for MBCS seems to be getting phased out. So it's time to switch to wide strings. This is a bit awkward for CiderPress because it works with disk and file archives with 8-bit filenames, and I want NufxLib and DiskImgLib to continue to work on Linux (which has largely taken the UTF-8 approach to Unicode). The libraries will continue to work with 8-bit filenames, with CiderPress/MDC doing the conversion at the appropriate point. There were a couple of places where strings from a structure handed back by one of the libraries were used directly in the UI, or vice-versa, which is a problem because we have nowhere to store the result of the conversion. These currently have fixed place-holder "xyzzy" strings. All UI strings are now wide. Various format strings now use "%ls" and "%hs" to explicitly specify wide and narrow. This doesn't play well with gcc, so only the Windows-specific parts use those. * Various updates to vcxproj files The project-file conversion had some cruft that is now largely gone. The build now has a common output directory for the EXEs and libraries, avoiding the old post-build copy steps. * Added zlib 1.2.8 and nufxlib 2.2.2 source snapshots The old "prebuilts" directory is now gone. The libraries are now built as part of building the apps. I added a minimal set of files for zlib, and a full set for nufxlib. The Linux-specific nufxlib goodies are included for the benefit of the Linux utilities, which are currently broken (don't build). * Replace symbols used for include guards Symbols with a leading "__" are reserved.
2014-11-10 23:32:55 +00:00
virtual OpenResult Open(const WCHAR* filename, bool readOnly,
CString* pErrMsg) override;
/*
* Finish instantiating an AcuArchive object by creating a new archive.
*
* Returns an error string on failure, or "" on success.
*/
virtual CString New(const WCHAR* filename, const void* options) override;
virtual CString Flush(void) override { return ""; }
virtual CString Reload(void) override;
virtual bool IsReadOnly(void) const override { return fIsReadOnly; };
virtual bool IsModified(void) const override { return false; }
virtual void GetDescription(CString* pStr) const override
{ *pStr = "AppleLink ACU"; }
virtual bool BulkAdd(ActionProgressDialog* pActionProgress,
const AddFilesDialog* pAddOpts) override
{ ASSERT(false); return false; }
virtual bool AddDisk(ActionProgressDialog* pActionProgress,
const AddFilesDialog* pAddOpts) override
{ ASSERT(false); return false; }
virtual bool CreateSubdir(CWnd* pMsgWnd, GenericEntry* pParentEntry,
const WCHAR* newName) override
{ ASSERT(false); return false; }
virtual bool TestSelection(CWnd* pMsgWnd, SelectionSet* pSelSet) override;
virtual bool DeleteSelection(CWnd* pMsgWnd, SelectionSet* pSelSet) override
{ ASSERT(false); return false; }
virtual bool RenameSelection(CWnd* pMsgWnd, SelectionSet* pSelSet) override
{ ASSERT(false); return false; }
virtual bool RenameVolume(CWnd* pMsgWnd, DiskFS* pDiskFS,
const WCHAR* newName) override
{ ASSERT(false); return false; }
virtual CString TestVolumeName(const DiskFS* pDiskFS,
const WCHAR* newName) const override
{ ASSERT(false); return "!"; }
virtual CString TestPathName(const GenericEntry* pGenericEntry,
const CString& basePath, const CString& newName, char newFssep) const override
{ ASSERT(false); return "!"; }
virtual bool RecompressSelection(CWnd* pMsgWnd, SelectionSet* pSelSet,
const RecompressOptionsDialog* pRecompOpts) override
{ ASSERT(false); return false; }
virtual XferStatus XferSelection(CWnd* pMsgWnd, SelectionSet* pSelSet,
ActionProgressDialog* pActionProgress,
const XferFileOptions* pXferOpts) override
{ ASSERT(false); return kXferFailed; }
virtual bool GetComment(CWnd* pMsgWnd, const GenericEntry* pEntry,
CString* pStr) override
{ ASSERT(false); return false; }
virtual bool SetComment(CWnd* pMsgWnd, GenericEntry* pEntry,
const CString& str) override
{ ASSERT(false); return false; }
virtual bool DeleteComment(CWnd* pMsgWnd, GenericEntry* pEntry) override
{ ASSERT(false); return false; }
virtual bool SetProps(CWnd* pMsgWnd, GenericEntry* pEntry,
const FileProps* pProps) override
{ ASSERT(false); return false; }
virtual void PreferencesChanged(void) override {}
virtual long GetCapability(Capability cap) override;
friend class AcuEntry;
2007-03-27 17:47:10 +00:00
private:
virtual CString Close(void) {
2014-11-18 05:13:13 +00:00
if (fFp != NULL) {
fclose(fFp);
2014-11-18 05:13:13 +00:00
fFp = NULL;
}
return "";
}
virtual void XferPrepare(const XferFileOptions* pXferOpts) override
{ ASSERT(false); }
virtual CString XferFile(FileDetails* pDetails, uint8_t** pDataBuf,
long dataLen, uint8_t** pRsrcBuf, long rsrcLen) override
{ ASSERT(false); return "!"; }
virtual void XferAbort(CWnd* pMsgWnd) override
{ ASSERT(false); }
virtual void XferFinish(CWnd* pMsgWnd) override
{ ASSERT(false); }
virtual ArchiveKind GetArchiveKind(void) override { return kArchiveACU; }
virtual NuError DoAddFile(const AddFilesDialog* pAddOpts,
FileDetails* pDetails) override
{ ASSERT(false); return kNuErrGeneric; }
enum {
kAcuMaxFileName = 256, // nice big number
kAcuMasterHeaderLen = 20,
kAcuEntryHeaderLen = 54,
};
/*
* The header at the front of an ACU archive.
*/
typedef struct AcuMasterHeader {
unsigned short fileCount;
unsigned short unknown1; // 0x01 00 -- might be "version 1?"
unsigned char fZink[6]; // "fZink", low ASCII
unsigned char unknown2[11]; // 0x01 36 00 00 00 00 00 00 00 00 dd
} AcuMasterHeader;
/*
* An entry in an ACU archive. Each archive is essentially a stream
* of files; only the "filesToFollow" value gives any indication that
* something else follows this entry.
*
* We read this from the archive and then unpack the interesting parts
* into GenericEntry fields in an AcuEntry.
*/
struct AcuFileEntry;
friend struct AcuFileEntry;
typedef struct AcuFileEntry {
unsigned char compressionType;
unsigned short dataChecksum; // ??
unsigned short blockCount; // total blocks req'd to hold file
unsigned long dataStorageLen; // length of data within archive
unsigned short access;
unsigned short fileType;
unsigned long auxType;
unsigned char storageType;
unsigned long dataEof;
unsigned short prodosModDate;
unsigned short prodosModTime;
NuDateTime modWhen; // computed from previous two fields
unsigned short prodosCreateDate;
unsigned short prodosCreateTime;
NuDateTime createWhen; // computed from previous two fields
unsigned short fileNameLen;
unsigned short headerChecksum; // ??
char fileName[kAcuMaxFileName+1];
// possibilities for mystery fields:
// - OS type (note ProDOS is $00)
// - forked file support
} AcuFileEntry;
/* known compression types */
enum CompressionType {
kAcuCompNone = 0,
kAcuCompSqueeze = 3,
};
/*
* Load the contents of the archive.
*
* Returns 0 on success, < 0 if this is not an ACU archive > 0 if this appears
* to be an ACU archive but it's damaged.
*/
int LoadContents(void);
/*
* Read the archive header. The archive file is left seeked to the point
* at the end of the header.
*
* Returns 0 on success, -1 on failure. Sets *pNumEntries to the number of
* entries in the archive.
*/
int ReadMasterHeader(int* pNumEntries);
/*
* Read and decode an AppleLink Compression Utility file entry header.
* This leaves the file seeked to the point immediately past the filename.
*/
NuError ReadFileHeader(AcuFileEntry* pEntry);
/*
* Dump the contents of an AcuFileEntry struct.
*/
void DumpFileHeader(const AcuFileEntry* pEntry);
/*
* Given an AcuFileEntry structure, add an appropriate entry to the list.
*/
int CreateEntry(const AcuFileEntry* pEntry);
/*
* Test if this entry is a directory.
*/
bool IsDir(const AcuFileEntry* pEntry);
/*
* Wrapper for fread(). Note the arguments resemble read(2) rather
* than fread(3S).
*/
NuError AcuRead(void* buf, size_t nbyte);
/*
* Seek within an archive. Because we need to handle streaming archives,
* and don't need to special-case anything, we only allow relative
* forward seeks.
*/
NuError AcuSeek(long offset);
/*
* Convert from ProDOS compact date format to the expanded DateTime format.
*/
void AcuConvertDateTime(uint16_t prodosDate,
uint16_t prodosTime, NuDateTime* pWhen);
FILE* fFp;
bool fIsReadOnly;
2007-03-27 17:47:10 +00:00
};
Large set of changes to restore CiderPress build. CiderPress and MDC now compile, and execute far enough to open their respective "about" boxes, but I doubt they'll do much more than that. * Switch from MBCS to UNICODE APIs Microsoft switched to UTF-16 (by way of UCS-2) a long time ago, and the support for MBCS seems to be getting phased out. So it's time to switch to wide strings. This is a bit awkward for CiderPress because it works with disk and file archives with 8-bit filenames, and I want NufxLib and DiskImgLib to continue to work on Linux (which has largely taken the UTF-8 approach to Unicode). The libraries will continue to work with 8-bit filenames, with CiderPress/MDC doing the conversion at the appropriate point. There were a couple of places where strings from a structure handed back by one of the libraries were used directly in the UI, or vice-versa, which is a problem because we have nowhere to store the result of the conversion. These currently have fixed place-holder "xyzzy" strings. All UI strings are now wide. Various format strings now use "%ls" and "%hs" to explicitly specify wide and narrow. This doesn't play well with gcc, so only the Windows-specific parts use those. * Various updates to vcxproj files The project-file conversion had some cruft that is now largely gone. The build now has a common output directory for the EXEs and libraries, avoiding the old post-build copy steps. * Added zlib 1.2.8 and nufxlib 2.2.2 source snapshots The old "prebuilts" directory is now gone. The libraries are now built as part of building the apps. I added a minimal set of files for zlib, and a full set for nufxlib. The Linux-specific nufxlib goodies are included for the benefit of the Linux utilities, which are currently broken (don't build). * Replace symbols used for include guards Symbols with a leading "__" are reserved.
2014-11-10 23:32:55 +00:00
#endif /*APP_ACUARCHIVE_H*/