cod-internal.h

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///
/// \file       cod-internal.h
///             COD structure
///

/*
    Copyright (C) 2008-2009, Nicolas VIVIEN
    Copyright (C) 2009, Josh Kropf
    See also:
        http://drbolsen.wordpress.com/2006/07/26/blackberry-cod-file-format/
        http://drbolsen.wordpress.com/2006/08/11/10/
        http://www.pkware.com/documents/casestudies/APPNOTE.TXT

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

    See the GNU General Public License in the COPYING file at the
    root directory of this project for more details.
*/


#ifndef __BARRY_COD_INTERNAL_H__
#define __BARRY_COD_INTERNAL_H__

#include "dll.h"
#include <stdint.h>
#include <sys/types.h>
#include "platform.h"           // safe to include platform.h here, since
                                // cod-internal.h is not installed either

#if USE_PACK_PRAGMA
#pragma pack(push, 1)
#endif

#define CODFILE_TYPE_SIMPLE     {0xDE, 0xC0}
#define CODFILE_TYPE_PKZIP      {0x50, 0x4B}
#define PKZIP_LOCAL_FILE_SIG    {0x50, 0x4B, 0x03, 0x04}
#define PKZIP_DIRECTORY_SIG     {0x50, 0x4B, 0x01, 0x02}
#define PKZIP_END_DIRECTORY_SIG {0x50, 0x4B, 0x05, 0x06}


typedef struct BXLOCAL {
        uint16_t        hour:5;
        uint16_t        minute:6;
        uint16_t        second:5;
} ATTRIBUTE_PACKED msdos_time_t;


typedef struct BXLOCAL {
        uint16_t        year:7;         // number of years since 1980
        uint16_t        month:4;
        uint16_t        day:5;
} ATTRIBUTE_PACKED msdos_date_t;


typedef struct BXLOCAL {
        //uint8_t       signature[4];           // PKZIP local file header 0x504B0304
        uint16_t        version_needed;         // version needed to extract, 0x0A00
        uint16_t        general_flag;           // general purpose bit flag, 0x0000
        uint16_t        compression_method;     // compression method, 0x0000 = stored, no compression
        msdos_time_t    last_mod_time;
        msdos_date_t    last_mod_date;
        uint32_t        crc_32;
        uint32_t        compressed_size;        // compression method is 'stored'
        uint32_t        uncompressed_size;      // both sizes are equal
        uint16_t        file_name_length;
        uint16_t        extra_field_length;
        //char          file_name[variable];
        //char          extra_field[variable];
} ATTRIBUTE_PACKED pkzip_local_header_t;


typedef struct BXLOCAL {
        //uint8_t       signature[4];           // PKZIP central directory 0x504B0304
        uint16_t        version_madeby;         // version used to compress, 0x0A00
        uint16_t        version_needed;         // version needed to extract, 0x0A00
        uint16_t        general_flag;           // general purpose bit flag, 0x0000
        uint16_t        compression_method;     // compression method, 0x0000 = stored, no compression
        msdos_time_t    last_mod_time;
        msdos_date_t    last_mod_date;
        uint32_t        crc_32;
        uint32_t        compressed_size;        // size of corresponding local file entry
        uint32_t        uncompressed_size;      // both sizes are equal
        uint16_t        file_name_length;
        uint16_t        extra_field_length;
        uint16_t        file_comment_length;
        uint16_t        disk_number;            // number of the disk on which this file begins, always zero
        uint16_t        internal_file_attr;     // always zero
        uint32_t        external_file_attr;     // always zero
        uint32_t        relative_offset;        // offset from beginning of this disk (this zip file)
                                                // to start of corresponding local file entry
        //char          file_name[variable];
        //char          extra_field[variable];
        //char          file_comment[variable];
} ATTRIBUTE_PACKED pkzip_directory_t;


typedef struct BXLOCAL {
        //uint8_t       signature[4];           // PKZIP end central directory 0x504B0506
        uint16_t        this_disk_number;       // number of this disk, always zero
        uint16_t        disk_with_first;        // number of the disk with the start of
                                                // central directory, always zero
        uint16_t        this_disk_entry_count;  // total number of entries in the central directory on this disk
        uint16_t        total_entry_count;      // total number of entries in the central directory
                                                // always equals this_disk_entry_count
        uint32_t        directory_length;       // total size of the central directory
        uint32_t        directory_offset;       // offset from beginning of this disk (this zip file)
                                                // to the first central directory entry
        uint16_t        file_comment_length;
        //char          file_comment[variable];
} ATTRIBUTE_PACKED pkzip_end_directory_t;


typedef struct BXLOCAL {
        uint16_t        type;                   // Type                 // 50 4B
        uint8_t         unknown1[8];            //                      // 03 04 0A 00 00 00 00 00
        uint8_t         unknown2[4];            //                      // AB 5C 6A 39
        uint8_t         unknown3[4];            //                      // BE 5C 58 D1
        uint32_t        size1;                  // COD size 0x0DCC      // CC 0D 01 00
        uint32_t        size2;                  // COD size 0x0DCC      // CC OD 01 00
        uint8_t         strsize;                // Size of string       // 19
        uint8_t         reserved2;              // Reserved 0x00        // 00
        uint8_t         strfree;                // Empty uint8_t        // 04
        uint8_t         reserved3;              // Reserved 0x00        // 00
}  ATTRIBUTE_PACKED codfile_header_t;


typedef struct BXLOCAL {
        uint32_t        flashid;
        uint32_t        section_number;         // always 0
        uint32_t        vtable_pointer;         // always 0
        time_t          timestamp;
        uint32_t        user_version;
        uint32_t        fieldref_pointer;
        uint16_t        maxtype_list_size;
        uint16_t        reserved;               // always 0xFF
        int32_t         data_section;           // always 0xFFFF
        int32_t         module_info;            // always 0xFFFF
        uint16_t        version;
        uint16_t        code_size;
        uint16_t        data_size;
        uint16_t        flags;
}  ATTRIBUTE_PACKED code_header_t;


typedef struct BXLOCAL {
        uint8_t         flags;
        uint8_t         version;
        uint16_t        num_icalls;
        uint8_t         num_modules;
        uint8_t         num_classes ;
        uint16_t        exported_string_offset;
        uint16_t        data_uint8_ts_offset;
        uint16_t        empty_field;
        uint16_t        class_definitions;
        uint16_t        array_of_unknow1_fields[14];
        uint16_t        aliases;
        uint16_t        array_of_unknow2_fields[22];
}  ATTRIBUTE_PACKED data_header_t;

#if USE_PACK_PRAGMA
#pragma pack(pop)
#endif

#endif