// Detect It Easy: detection rule file
// Author: LinXP
// Status: WIP

meta("format", "Microsoft Virtual Hard Disk (.VHD)");

function detect() {
    if (Binary.getSize() >= 0x200) {
        if (Binary.compare("'conectix'", Binary.getSize() - 0x200)) {
            bDetected = true;
            nOffset = Binary.getSize() - 0x200
            sVersion = "v" + Binary.read_uint16(nOffset + 0xC, _BE) + "." + Binary.read_uint16(nOffset + 0xE, _BE);
            switch (Binary.read_uint32(nOffset + 0x3C, _BE)) {
                // case  1: sOption("deprecate");    break;
                case 2:
                    sOption("Fixed");
                    break;
                case 3:
                    sOption("Dynamically");
                    break;
                case 4:
                    sOption("Differencings");
                    break;
                default: return;
            }

            sOption("OrginalSize:" + Binary.bytesCountToString(Binary.read_uint64(nOffset + 0x28, _BE)));
            sOption("CurrentSize:" + Binary.bytesCountToString(Binary.read_uint64(nOffset + 0x30, _BE)));
            if (Binary.isVerbose()) {
                sOption("CreaterApp:" + Binary.getString(nOffset + 0x1C, 4));
                sOption("v" + Binary.read_uint16(nOffset + 0x20, _BE) + "." + Binary.read_uint16(nOffset + 0x22, _BE));
                switch (Binary.read_uint32(nOffset + 0x24, _BE)) {
                    case 0x57693272:
                        sOption("WI2R");
                        break;
                    case 0x5769326B:
                        sOption("WINDOWS");
                        break;
                    case 0x57327275:
                        sOption("W2RU");
                        break;
                    case 0x57326B75:
                        sOption("W2KU");
                        break;
                    case 0x4D616320:
                        sOption("MACINTOSH");
                        break;
                    case 0x4D163258:
                        sOption("MACX");
                        break;
                    default: return;
                }
            }
        }
    }

    return result();
}