Ejemplo n.º 1
0
        /// <summary>
        /// Set the data from the raw values provided.
        /// </summary>
        /// <param name="data">The raw data to extract values from.</param>
        /// <param name="index">The index to start extracting values from.</param>
        /// <param name="count">The number of bytes available.</param>
        public void SetData(byte[] data, int index, int count)
        {
            using (MemoryStream ms = new MemoryStream(data, index, count, false))
            using (ZipHelperStream helperStream = new ZipHelperStream(ms))
            {
                helperStream.ReadLEInt(); // Reserved
                while (helperStream.Position < helperStream.Length)
                {
                    int ntfsTag = helperStream.ReadLEShort();
                    int ntfsLength = helperStream.ReadLEShort();
                    if (ntfsTag == 1)
                    {
                        if (ntfsLength >= 24)
                        {
                            long lastModificationTicks = helperStream.ReadLELong();
                            lastModificationTime_ = DateTime.FromFileTime(lastModificationTicks);

                            long lastAccessTicks = helperStream.ReadLELong();
                            lastAccessTime_ = DateTime.FromFileTime(lastAccessTicks);

                            long createTimeTicks = helperStream.ReadLELong();
                            createTime_ = DateTime.FromFileTime(createTimeTicks);
                        }
                        break;
                    }
                    else
                    {
                        // An unknown NTFS tag so simply skip it.
                        helperStream.Seek(ntfsLength, SeekOrigin.Current);
                    }
                }
            }
        }
Ejemplo n.º 2
0
        /// <summary>
        /// Set the data from the raw values provided.
        /// </summary>
        /// <param name="data">The raw data to extract values from.</param>
        /// <param name="index">The index to start extracting values from.</param>
        /// <param name="count">The number of bytes available.</param>
        public void SetData(byte[] data, int index, int count)
        {
            using (MemoryStream ms = new MemoryStream(data, index, count, false))
            using (ZipHelperStream helperStream = new ZipHelperStream(ms))
            {
                // bit 0           if set, modification time is present
                // bit 1           if set, access time is present
                // bit 2           if set, creation time is present

                flags_ = (Flags)helperStream.ReadByte();
                if (((flags_ & Flags.ModificationTime) != 0) && (count >= 5))
                {
                    int iTime = helperStream.ReadLEInt();

                    modificationTime_ = (new System.DateTime(1970, 1, 1, 0, 0, 0).ToUniversalTime() +
                        new TimeSpan(0, 0, 0, iTime, 0)).ToLocalTime();
                }

                if ((flags_ & Flags.AccessTime) != 0)
                {
                    int iTime = helperStream.ReadLEInt();

                    lastAccessTime_ = (new System.DateTime(1970, 1, 1, 0, 0, 0).ToUniversalTime() +
                        new TimeSpan(0, 0, 0, iTime, 0)).ToLocalTime();
                }

                if ((flags_ & Flags.CreateTime) != 0)
                {
                    int iTime = helperStream.ReadLEInt();

                    createTime_ = (new System.DateTime(1970, 1, 1, 0, 0, 0).ToUniversalTime() +
                        new TimeSpan(0, 0, 0, iTime, 0)).ToLocalTime();
                }
            }
        }