ReadBin_SeekTo() public static method

public static ReadBin_SeekTo ( BinaryReader stream, byte str, long fileLength ) : void
stream System.IO.BinaryReader
str byte
fileLength long
return void
Exemplo n.º 1
0
        public static Dictionary <int, AppInfo> LoadApps(string path)
        {
            Dictionary <int, AppInfo> result = new Dictionary <int, AppInfo>();
            BinaryReader bReader             = new BinaryReader(new FileStream(path, FileMode.Open, FileAccess.Read));
            long         fileLength          = bReader.BaseStream.Length;

            // seek to common: start of a new entry
            byte[] start = new byte[] { 0x00, 0x00, 0x63, 0x6F, 0x6D, 0x6D, 0x6F, 0x6E, 0x00 }; // 0x00 0x00 c o m m o n 0x00

            VdfFileNode.ReadBin_SeekTo(bReader, start, fileLength);

            VdfFileNode node = VdfFileNode.LoadFromBinary(bReader, fileLength);

            while (node != null)
            {
                AppInfo app = AppInfo.FromVdfNode(node);
                if (app != null)
                {
                    result.Add(app.Id, app);
                }
                VdfFileNode.ReadBin_SeekTo(bReader, start, fileLength);
                node = VdfFileNode.LoadFromBinary(bReader, fileLength);
            }
            bReader.Close();
            return(result);
        }
Exemplo n.º 2
0
        /// <summary>
        /// Loads Apps from packageinfo.vdf.
        /// </summary>
        /// <param name="path">Path of packageinfo.vdf</param>
        public static Dictionary <int, PackageInfo> LoadPackages(string path)
        {
            Dictionary <int, PackageInfo> result = new Dictionary <int, PackageInfo>();

            /* packageinfo.vdf entry example format, sometimes has extra values. Line breaks are only for readability and not part of format.
             * we only care about *packageid*, *billingtype*, *appids*
             * *undeciphered*(24 bytes i haven't deciphered) *changenumber*(4 bytes, little endian)
             * 00 *packageid*(variable size, big endian, ascii) 00
             * 02 packageid 00 *packageid*(4 bytes, little endian)
             * 02 billingtype 00 *billingtype*(4 bytes, little endian)
             * 02 licensetype 00 *licensetype*(4 bytes, little endian)
             * 02 status 00 00 00 00 00 00 extended 00
             * 08 00 appids 00 02 *entrynumber*(variable size, number stored as string(ascii), starts at 0, random example: 31 38 39=189) 00 *appid*(4 bytes, little endian)
             * 08 00 depotids 00 02 *entrynumber* 00 *depotid*(4 bytes, little endian) 02 *entrynumber* 00 *depotid* 02 *entrynumber* 00 *depotid*
             * 08 00 appitems 00 08 08 08
             */

            BinaryReader bReader    = new BinaryReader(new FileStream(path, FileMode.Open), Encoding.ASCII);
            long         fileLength = bReader.BaseStream.Length;

            // seek to packageid: start of a new entry
            byte[] packageidBytes =
            {
                0x00, 0x02, 0x70, 0x61, 0x63, 0x6B, 0x61, 0x67, 0x65, 0x69, 0x64, 0x00
            }; // 0x00 0x02 p a c k a g e i d 0x00
            byte[] billingtypeBytes =
            {
                0x02, 0x62, 0x69, 0x6C, 0x6C, 0x69, 0x6E, 0x67, 0x74, 0x79, 0x70, 0x65, 0x00
            };                                                                             // 0x02 b i l l i n g t y p e 0x00
            byte[] appidsBytes = { 0x08, 0x00, 0x61, 0x70, 0x70, 0x69, 0x64, 0x73, 0x00 }; // 0x08 0x00 appids 0x00

            VdfFileNode.ReadBin_SeekTo(bReader, packageidBytes, fileLength);
            while (bReader.BaseStream.Position < fileLength)
            {
                int         id      = bReader.ReadInt32();
                PackageInfo package = new PackageInfo(id);

                VdfFileNode.ReadBin_SeekTo(bReader, billingtypeBytes, fileLength);
                package.BillingType = (PackageBillingType)bReader.ReadInt32();

                VdfFileNode.ReadBin_SeekTo(bReader, appidsBytes, fileLength);
                while (bReader.ReadByte() == 0x02)
                {
                    while (bReader.ReadByte() != 0x00)
                    {
                    }
                    package.AppIds.Add(bReader.ReadInt32());
                }

                result.Add(package.Id, package);
                VdfFileNode.ReadBin_SeekTo(bReader, packageidBytes, fileLength);
            }

            return(result);
        }