nsDecodeAppleFile.h

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsDecodeAppleFile_h__

#define nsDecodeAppleFile_h__

#include "nscore.h"

#include "nsCOMPtr.h"

#include "nsIFile.h"

#include "nsIOutputStream.h"

/*

** applefile definitions used

*/

#if PRAGMA_STRUCT_ALIGN

#  pragma options align = mac68k

#endif

#define APPLESINGLE_MAGIC 0x00051600L

#define APPLEDOUBLE_MAGIC 0x00051607L

#define VERSION 0x00020000

#define NUM_ENTRIES 6

#define ENT_DFORK 1L

#define ENT_RFORK 2L

#define ENT_NAME 3L

#define ENT_COMMENT 4L

#define ENT_DATES 8L

#define ENT_FINFO 9L

#define CONVERT_TIME 1265437696L

/*

** data type used in the header decoder.

*/

typedef struct ap_header {

  int32_t magic;

  int32_t version;

  int32_t fill[4];

  int16_t entriesCount;

} ap_header;

typedef struct ap_entry {

  int32_t id;

  int32_t offset;

  int32_t length;

} ap_entry;

typedef struct ap_dates {

  int32_t create, modify, backup, access;

} ap_dates;

#if PRAGMA_STRUCT_ALIGN

#  pragma options align = reset

#endif

/*

**Error codes

*/

enum { errADNotEnoughData = -12099, errADNotSupported, errADBadVersion };

class nsDecodeAppleFile : public nsIOutputStream {

 public:

  NS_DECL_THREADSAFE_ISUPPORTS

  NS_DECL_NSIOUTPUTSTREAM

  nsDecodeAppleFile();

  virtual ~nsDecodeAppleFile();

  [[nodiscard]] nsresult Initialize(nsIOutputStream* output, nsIFile* file);

 private:

#define MAX_BUFFERSIZE 1024

  enum ParserState {

    parseHeaders,

    parseEntries,

    parseLookupPart,

    parsePart,

    parseSkipPart,

    parseDataFork,

    parseResourceFork,

    parseWriteThrough

};

  nsCOMPtr<nsIOutputStream> m_output;

  FSSpec m_fsFileSpec;

  SInt16 m_rfRefNum;

  unsigned char* m_dataBuffer;

  int32_t m_dataBufferLength;

  ParserState m_state;

  ap_header m_headers;

  ap_entry* m_entries;

  int32_t m_offset;

  int32_t m_dataForkOffset;

  int32_t m_totalDataForkWritten;

  int32_t m_totalResourceForkWritten;

  bool m_headerOk;

  int32_t m_currentPartID;

  int32_t m_currentPartLength;

  int32_t m_currentPartCount;

  Str255 m_comment;

  ap_dates m_dates;

  FInfo m_finderInfo;

  FXInfo m_finderExtraInfo;

};

#endif