internal static int WriteEndEntry()

in src/ICSharpCode.SharpZipLib/Zip/ZipFormat.cs [388:517]
110 lines of code
21 McCabe index (conditional complexity)

		internal static int WriteEndEntry(Stream stream, ZipEntry entry, StringCodec stringCodec)
		{
			stream.WriteLEInt(ZipConstants.CentralHeaderSignature);
			stream.WriteLEShort((entry.HostSystem << 8) | entry.VersionMadeBy);
			stream.WriteLEShort(entry.Version);
			stream.WriteLEShort(entry.Flags);
			stream.WriteLEShort((short)entry.CompressionMethodForHeader);
			stream.WriteLEInt((int)entry.DosTime);
			stream.WriteLEInt((int)entry.Crc);

			if (entry.IsZip64Forced() ||
				(entry.CompressedSize >= uint.MaxValue))
			{
				stream.WriteLEInt(-1);
			}
			else
			{
				stream.WriteLEInt((int)entry.CompressedSize);
			}

			if (entry.IsZip64Forced() ||
				(entry.Size >= uint.MaxValue))
			{
				stream.WriteLEInt(-1);
			}
			else
			{
				stream.WriteLEInt((int)entry.Size);
			}

			byte[] name = stringCodec.ZipOutputEncoding.GetBytes(entry.Name);

			if (name.Length > 0xffff)
			{
				throw new ZipException("Name too long.");
			}

			var ed = new ZipExtraData(entry.ExtraData);

			if (entry.CentralHeaderRequiresZip64)
			{
				ed.StartNewEntry();
				if (entry.IsZip64Forced() ||
					(entry.Size >= 0xffffffff))
				{
					ed.AddLeLong(entry.Size);
				}

				if (entry.IsZip64Forced() ||
					(entry.CompressedSize >= 0xffffffff))
				{
					ed.AddLeLong(entry.CompressedSize);
				}

				if (entry.Offset >= 0xffffffff)
				{
					ed.AddLeLong(entry.Offset);
				}

				ed.AddNewEntry(1);
			}
			else
			{
				ed.Delete(1);
			}

			if (entry.AESKeySize > 0)
			{
				AddExtraDataAES(entry, ed);
			}
			byte[] extra = ed.GetEntryData();

			byte[] entryComment = !(entry.Comment is null)
				? stringCodec.ZipOutputEncoding.GetBytes(entry.Comment) 
				: Empty.Array<byte>();

			if (entryComment.Length > 0xffff)
			{
				throw new ZipException("Comment too long.");
			}

			stream.WriteLEShort(name.Length);
			stream.WriteLEShort(extra.Length);
			stream.WriteLEShort(entryComment.Length);
			stream.WriteLEShort(0);    // disk number
			stream.WriteLEShort(0);    // internal file attributes
									   // external file attributes

			if (entry.ExternalFileAttributes != -1)
			{
				stream.WriteLEInt(entry.ExternalFileAttributes);
			}
			else
			{
				if (entry.IsDirectory)
				{                         // mark entry as directory (from nikolam.AT.perfectinfo.com)
					stream.WriteLEInt(16);
				}
				else
				{
					stream.WriteLEInt(0);
				}
			}

			if (entry.Offset >= uint.MaxValue)
			{
				stream.WriteLEInt(-1);
			}
			else
			{
				stream.WriteLEInt((int)entry.Offset);
			}

			if (name.Length > 0)
			{
				stream.Write(name, 0, name.Length);
			}

			if (extra.Length > 0)
			{
				stream.Write(extra, 0, extra.Length);
			}

			if (entryComment.Length > 0)
			{
				stream.Write(entryComment, 0, entryComment.Length);
			}

			return ZipConstants.CentralHeaderBaseSize + name.Length + extra.Length + entryComment.Length;
		}