private byte[] getFileZBlock(GrfFile file) { /* Get new stream */ var stream = FileManager.Load(filename) as Stream; if (stream == null) { throw new Exception("GE_ERRNO"); } byte[] data; using (var br = new System.IO.BinaryReader(stream)) { br.BaseStream.Seek(file.pos, SeekOrigin.Begin); data = br.ReadBytes((int)file.compressed_len_aligned); } byte[] keyschedule = new byte[0x80]; return(GrfCrypt.GRFProcess(data, file.compressed_len_aligned, file.flags, file.compressed_len, keyschedule)); }
private void FlushFile(int i) { if (m_Items[i] is GrfDirectoryInfo) { return; } GrfFileInfo gfile = (GrfFileInfo)m_Items[i]; byte[] buf = ZlibStream.CompressBuffer(gfile.Data); gfile.CompressedLength = buf.Length; gfile.AlignedCompressedLength = gfile.CompressedLength; if ((gfile.Flags & (GrfFileFlags.MixCrypt | GrfFileFlags.Des_0x14)) != GrfFileFlags.None) { gfile.AlignedCompressedLength += gfile.CompressedLength % 8; Array.Resize <byte>(ref buf, gfile.AlignedCompressedLength); buf = GrfCrypt.EncryptFileBuffer(buf, gfile.CompressedLength, gfile.Flags); } int writeOffset = m_Items.FindUnused(gfile.AlignedCompressedLength); if (writeOffset == 0) { // grf_find_unused returned 0 -> append FileStream.Seek(0, SeekOrigin.End); } else { FileStream.Seek(writeOffset, SeekOrigin.Begin); } gfile.Position = (int)FileStream.Position; FileStream.Write(buf, 0, buf.Length); }
private void FlushVer1() { byte[] buffer = new byte[m_Items.Count * GRF_ITEM_SIZE]; int i, offset, len, writeOffset; GrfFileInfo gfile = null; try { m_Items.SortToPosition(); using (IntPtrEx pBuffer = new IntPtrEx(buffer)) { for (i = offset = 0; i < Items.Count; i++) { if (m_Items[i] is GrfFileInfo) { gfile = (GrfFileInfo)m_Items[i]; if (m_ForceRepack) { gfile.CompressedLength = 0; gfile.AlignedCompressedLength = 0; gfile.Position = 0; } if (gfile.CompressedLength == 0 && gfile.AlignedCompressedLength == 0 && gfile.Position == 0 && gfile.Length != 0) { if (gfile.CheckExtension()) { gfile.Flags = (gfile.Flags & ~GrfFileFlags.MixCrypt) | GrfFileFlags.Des_0x14; } else { gfile.Flags = (gfile.Flags & ~GrfFileFlags.Des_0x14) | GrfFileFlags.MixCrypt; } FlushFile(i); } } len = m_Items[i].FullName.Length + 1; if (m_IntVersion < 0x101) { pBuffer.Write <int>(offset, len); SwapNibbles(pBuffer + offset + 4, m_Items[i].FullName, len); offset += 4 + len; } else if (m_IntVersion < 0x104) { pBuffer.Write <int>(offset, len + 6); offset += 4; SwapNibbles(pBuffer + offset + 6, GrfCrypt.EncryptNameVer1(m_Items[i].Name, len), len); offset += len + 6; } if (m_Items[i] is GrfDirectoryInfo) { pBuffer.Write <int>(offset, EndianConverter.LittleEndian(GrfItem.GRFFILE_DIR_SZSMALL + GrfItem.GRFFILE_DIR_SZORIG + 0x02CB)); pBuffer.Write <int>(offset + 4, EndianConverter.LittleEndian(GrfItem.GRFFILE_DIR_SZFILE + 0x92CB)); pBuffer.Write <int>(offset + 8, EndianConverter.LittleEndian(GrfItem.GRFFILE_DIR_SZORIG)); pBuffer.Write <int>(offset + 0xD, EndianConverter.LittleEndian(GrfItem.GRFFILE_DIR_OFFSET - GRF_HEADER_FULL_LEN)); } else { pBuffer.Write <int>(offset, EndianConverter.LittleEndian(gfile.CompressedLength + gfile.Length + 0x02CB)); pBuffer.Write <int>(offset + 4, EndianConverter.LittleEndian(gfile.AlignedCompressedLength + 0x92CB)); pBuffer.Write <int>(offset + 8, EndianConverter.LittleEndian(gfile.Length)); pBuffer.Write <int>(offset + 0xD, EndianConverter.LittleEndian(gfile.Position - GRF_HEADER_FULL_LEN)); } pBuffer.Write <byte>(offset + 0xC, (byte)(m_Items[i].Flags & GrfFileFlags.File)); offset += 0x11; } } } catch (Exception ex) { throw new Exception(ex.Message); } FileStream.Seek(0, SeekOrigin.End); writeOffset = (int)FileStream.Position; FileStream.Write(buffer, 0, offset); FileStream.Seek(GRF_HEADER_MID_LEN, SeekOrigin.End); FileStream.Write(BitConverter.GetBytes(EndianConverter.LittleEndian(writeOffset - GRF_HEADER_FULL_LEN)), 0, 4); FileStream.Write(BitConverter.GetBytes(0), 0, 4); FileStream.Write(BitConverter.GetBytes(EndianConverter.LittleEndian(i + 0 + 7)), 0, 4); }
private void ReadVer1Info() { if (m_IntVersion > 0x103) { throw new GrfException(); } int offset = (int)FileStream.Position; int len2, len = (int)FileStream.Length - offset; byte[] buffer = new byte[len], namebuf = new byte[GRF_NAMELEN]; try { FileStream.Read(buffer, 0, len); string name = null; GrfItem item; using (IntPtrEx pBuffer = new IntPtrEx(buffer)) { for (int i = offset = 0; i < m_Items.Capacity; i++) { len = EndianConverter.LittleEndian(pBuffer.Read <int>(offset)); offset += 4; if (m_IntVersion < 0x101) { len2 = pBuffer.Read <string>(offset).Length; if (len2 >= GRF_NAMELEN) { throw new GrfException(); } name = SwapNibbles(pBuffer + offset, len2); } else if (m_IntVersion < 0x104) { offset += 2; len2 = len - 6; if (len2 >= GRF_NAMELEN) { throw new GrfException(); } SwapNibbles(namebuf, pBuffer + offset, len2); name = GrfCrypt.DecryptNameVer1(namebuf, len2); len -= 2; } offset += len; item = GrfItem.CreateV1 ( this, name, EndianConverter.LittleEndian(pBuffer.Read <int>(offset)) - EndianConverter.LittleEndian(pBuffer.Read <int>(offset + 8)) - 0x02CB, EndianConverter.LittleEndian(pBuffer.Read <int>(offset + 4)) - 0x92CB, EndianConverter.LittleEndian(pBuffer.Read <int>(offset + 8)), (GrfFileFlags)pBuffer[offset + 0xC], EndianConverter.LittleEndian(pBuffer.Read <int>(offset + 0xD)) + GRF_HEADER_FULL_LEN ); m_Items.GrfAdd(item); offset += 0x11; } } } catch (Exception ex) { throw new Exception(ex.Message); } }