//-------- private static void DumpAdditionalProtocolDescriptorLists(System.IO.TextWriter writer, int depth, ServiceElement element) { System.Diagnostics.Debug.Assert(element.ElementType == ElementType.ElementSequence); // // Is a list of PDLs foreach (ServiceElement curList in element.GetValueAsElementList()) { DumpProtocolDescriptorList(writer, depth + 1, curList); }//foreach }
//-------------------- // /// <summary> /// Gets the list of <see cref="T:InTheHand.Net.Bluetooth.LanguageBaseItem"/> /// items in the service record. /// </summary> /// - /// <param name="elementSequence"> /// A <see cref="T:InTheHand.Net.Bluetooth.ServiceElement"/> holding the /// data from the /// <see cref="F:InTheHand.Net.Bluetooth.AttributeIds.UniversalAttributeId.LanguageBaseAttributeIdList"/> /// attribute. /// </param> /// - /// <returns> /// An array of <see cref="T:InTheHand.Net.Bluetooth.LanguageBaseItem"/>. /// An array length zero is returned if the service record contains no such attribute. /// </returns> /// - /// <exception cref="T:System.ArgumentException"> /// <paramref name="elementSequence"/> is not of type /// <see cref="F:InTheHand.Net.Bluetooth.ElementType.ElementSequence"/>. /// </exception> /// <exception cref="T:System.Net.ProtocolViolationException"> /// The element sequence contains incorrectly formatted or invalid content, /// for example it contains the wrong element data types, or doesn't contain /// the elements in groups of three as required. /// </exception> public static LanguageBaseItem[] ParseListFromElementSequence(ServiceElement elementSequence) { if (elementSequence.ElementType != ElementType.ElementSequence) { throw new ArgumentException(ErrorMsgLangBaseListParseNotSequence); } #if V1 IList elementList = elementSequence.GetValueAsElementList(); #else IList <ServiceElement> elementList = elementSequence.GetValueAsElementList(); #endif int numElements = elementList.Count; const int ElementsPerItem = 3; if (numElements == 0 || (numElements % ElementsPerItem) != 0) { throw new System.Net.ProtocolViolationException(ErrorMsgLangBaseListParseNotInThrees); } int numItems = numElements / ElementsPerItem; LanguageBaseItem[] items = new LanguageBaseItem[numItems]; for (int i = 0; i < numItems; ++i) { // Casts are for the non-Generic version. ServiceElement e1Lang = (ServiceElement)elementList[i * ElementsPerItem]; ServiceElement e2EncId = (ServiceElement)elementList[i * ElementsPerItem + 1]; ServiceElement e3BaseId = (ServiceElement)elementList[i * ElementsPerItem + 2]; if (e1Lang.ElementType != ElementType.UInt16 || e2EncId.ElementType != ElementType.UInt16 || e3BaseId.ElementType != ElementType.UInt16) { throw new System.Net.ProtocolViolationException(ErrorMsgLangBaseListParseNotU16); } if ((UInt16)e3BaseId.Value == 0) { throw new System.Net.ProtocolViolationException(ErrorMsgLangBaseListParseBaseInvalid); } LanguageBaseItem item = new LanguageBaseItem( (UInt16)e1Lang.Value, (UInt16)e2EncId.Value, (UInt16)e3BaseId.Value); items[i] = item; } return(items); }
private static void DumpProtocolDescriptorListList(System.IO.TextWriter writer, int depth, ServiceElement element) { // The list. System.Diagnostics.Debug.Assert(element.ElementType == ElementType.ElementSequence); WritePrefix(writer, depth); writer.Write("( "); bool firstLayer = true; foreach (ServiceElement layer in element.GetValueAsElementList()) { ServiceElement[] items = layer.GetValueAsElementArray(); int used = 0; System.Diagnostics.Debug.Assert(items[used].ElementTypeDescriptor == ElementTypeDescriptor.Uuid); Guid protoGuid = items[used].GetValueAsUuid(); String protoStr; HackProtocolId proto = GuidToHackProtocolId(protoGuid, out protoStr); // used++; writer.Write("{0}( {1}", (firstLayer ? string.Empty : ", "), protoStr); if (proto == HackProtocolId.L2Cap) { if (used < items.Length) { System.Diagnostics.Debug.Assert(items[used].ElementType == ElementType.UInt16); UInt16 u16 = (UInt16)items[used].Value; HackProtocolServiceMultiplexer psm = unchecked ((HackProtocolServiceMultiplexer)u16); used++; writer.Write(", PSM={0}", Enum_ToStringNameOrHex(psm)); } } else if (proto == HackProtocolId.Rfcomm) { if (used < items.Length) { System.Diagnostics.Debug.Assert(items[used].ElementType == ElementType.UInt8); byte channelNumber = (byte)items[used].Value; used++; writer.Write(", ChannelNumber={0}", channelNumber); } } // Others include BNEP for instance, which isn't defined in the base SDP spec. if (used < items.Length) { writer.Write(", ..."); } writer.Write(" )"); firstLayer = false; }//foreach layer writer.WriteLine(" )"); }
private static void DumpProtocolDescriptorList(System.IO.TextWriter writer, int depth, ServiceElement element) { System.Diagnostics.Debug.Assert(element.ElementType == ElementType.ElementAlternative || element.ElementType == ElementType.ElementSequence); // // If passes a list of alternatives, each a protocol descriptor list, // then call ourselves on each list. if (element.ElementType == ElementType.ElementAlternative) { foreach (ServiceElement curStack in element.GetValueAsElementList()) { DumpProtocolDescriptorListList(writer, depth + 1, curStack); }//foreach return; } //else DumpProtocolDescriptorListList(writer, depth, element); }
private static void DumpRawElement(System.IO.TextWriter writer, int depth, ServiceElement elem) { WritePrefix(writer, depth); if (elem.ElementType == ElementType.ElementSequence || elem.ElementType == ElementType.ElementAlternative) { writer.WriteLine("{0}", elem.ElementType); foreach (ServiceElement element in elem.GetValueAsElementList()) { DumpRawElement(writer, depth + 1, element); } } else if (elem.ElementType == ElementType.Nil) { writer.WriteLine("Nil:"); } else if (elem.ElementType == ElementType.TextString || elem.ElementType == ElementType.Boolean || elem.ElementType == ElementType.Url) { // Non-numeric types writer.WriteLine("{0}: {1}", elem.ElementType, elem.Value); } else if (elem.ElementType == ElementType.Uuid128) { writer.WriteLine("{0}: {1}", elem.ElementType, elem.Value); } else if (elem.ElementType == ElementType.UInt128 || elem.ElementType == ElementType.Int128) { string valueText = BitConverter.ToString((byte[])elem.Value); writer.WriteLine("{0}: {1}", elem.ElementType, valueText); } else { writer.WriteLine("{0}: 0x{1:X}", elem.ElementType, elem.Value); //{catch(?FOrmatExptn){ // writer.WriteLine("{0}: 0x{1}", elem.Type, elem.Value); //} } }
private static void DumpElement(System.IO.TextWriter writer, int depth, ServiceElement attr) { WritePrefix(writer, depth); if (attr.ElementType == ElementType.ElementSequence || attr.ElementType == ElementType.ElementAlternative) { writer.WriteLine("{0}", attr.ElementType); foreach (ServiceElement element in attr.GetValueAsElementList()) { DumpElement(writer, depth + 1, element); }//for } else if (attr.ElementType == ElementType.Nil) { writer.WriteLine("Nil:"); } else if (attr.ElementType == ElementType.TextString || attr.ElementType == ElementType.Boolean || attr.ElementType == ElementType.Url) { // Non-numeric types writer.WriteLine("{0}: {1}", attr.ElementType, attr.Value); } else { String name = null; String valueText = null; if (attr.ElementTypeDescriptor == ElementTypeDescriptor.Uuid) { if (attr.ElementType == ElementType.Uuid16) { name = BluetoothService.GetName((UInt16)attr.Value); } else if (attr.ElementType == ElementType.Uuid32) { name = BluetoothService.GetName((UInt32)attr.Value); } else { System.Diagnostics.Debug.Assert(attr.ElementType == ElementType.Uuid128); name = BluetoothService.GetName((Guid)attr.Value); valueText = ((Guid)attr.Value).ToString(); } }//if UUID if (valueText == null) { if (attr.ElementTypeDescriptor == ElementTypeDescriptor.Unknown) { valueText = "unknown"; } else { valueText = String.Format(System.Globalization.CultureInfo.InvariantCulture, "0x{0:X}", attr.Value); } } if (name == null) { writer.WriteLine("{0}: {1}", attr.ElementType, valueText); } else { writer.WriteLine("{0}: {1} -- {2}", attr.ElementType, valueText, name); } }//else }
private static void DumpProtocolDescriptorListList(System.IO.TextWriter writer, int depth, ServiceElement element) { // The list. System.Diagnostics.Debug.Assert(element.ElementType == ElementType.ElementSequence); WritePrefix(writer, depth); writer.Write("( "); bool firstLayer = true; foreach (ServiceElement layer in element.GetValueAsElementList()) { ServiceElement[] items = layer.GetValueAsElementArray(); int used = 0; System.Diagnostics.Debug.Assert(items[used].ElementTypeDescriptor == ElementTypeDescriptor.Uuid); Guid protoGuid = items[used].GetValueAsUuid(); HackProtocolId proto = GuidToHackProtocolId(protoGuid); String protoStr; if (proto != 0) { protoStr = Enum_ToStringNameOrHex(proto); } else { // Not a standard Bluetooth value so dump its UUID protoStr = protoGuid.ToString(); } // used++; writer.Write("{0}( {1}", (firstLayer ? string.Empty : ", "), protoStr); if (proto == HackProtocolId.L2Cap) { if (used < items.Length) { System.Diagnostics.Debug.Assert(items[used].ElementType == ElementType.UInt16); HackProtocolServiceMultiplexer psm = (HackProtocolServiceMultiplexer)(UInt16)items[used].Value; used++; writer.Write(", PSM={0}", Enum_ToStringNameOrHex(psm)); } } else if (proto == HackProtocolId.Rfcomm) { if (used < items.Length) { System.Diagnostics.Debug.Assert(items[used].ElementType == ElementType.UInt8); byte channelNumber = (byte)items[used].Value; used++; writer.Write(", ChannelNumber={0}", channelNumber); } } // Others include BNEP for instance, which isn't defined in the base SDP spec. if (used < items.Length) { writer.Write(", ..."); } writer.Write(" )"); firstLayer = false; }//foreach layer writer.WriteLine(" )"); }
private static void DumpProtocolDescriptorList(System.IO.TextWriter writer, int depth, ServiceElement element) { System.Diagnostics.Debug.Assert(element.ElementType == ElementType.ElementAlternative || element.ElementType == ElementType.ElementSequence); // // If passes a list of alternatives, each a protocol descriptor list, // then call ourselves on each list. if (element.ElementType == ElementType.ElementAlternative) { foreach (ServiceElement curStack in element.GetValueAsElementList()) { DumpProtocolDescriptorListList(writer, depth + 1, curStack); }//foreach return; } //else DumpProtocolDescriptorListList(writer, depth, element); }
//-------- private static void DumpAdditionalProtocolDescriptorLists(System.IO.TextWriter writer, int depth, ServiceElement element) { System.Diagnostics.Debug.Assert(element.ElementType == ElementType.ElementSequence); // // Is a list of PDLs foreach (ServiceElement curList in element.GetValueAsElementList()) { DumpProtocolDescriptorList(writer, depth + 1, curList); }//foreach }
private static void DumpRawElement(System.IO.TextWriter writer, int depth, ServiceElement attr) { WritePrefix(writer, depth); if (attr.ElementType == ElementType.ElementSequence || attr.ElementType == ElementType.ElementAlternative) { writer.WriteLine("{0}", attr.ElementType); foreach (ServiceElement element in attr.GetValueAsElementList()) { DumpRawElement(writer, depth + 1, element); } } else if (attr.ElementType == ElementType.Nil) { writer.WriteLine("Nil:"); } else if (attr.ElementType == ElementType.TextString || attr.ElementType == ElementType.Boolean || attr.ElementType == ElementType.Url) { // Non-numeric types writer.WriteLine("{0}: {1}", attr.ElementType, attr.Value); } else if (attr.ElementType == ElementType.Uuid128) { writer.WriteLine("{0}: ", attr.ElementType, attr.Value); } else { writer.WriteLine("{0}: 0x{1:X}", attr.ElementType, attr.Value); //{catch(?FOrmatExptn){ // writer.WriteLine("{0}: 0x{1}", attr.Type, attr.Value); //} } }
//-------------------- // /// <summary> /// Gets the list of <see cref="T:InTheHand.Net.Bluetooth.LanguageBaseItem"/> /// items in the service record. /// </summary> /// - /// <param name="elementSequence"> /// A <see cref="T:InTheHand.Net.Bluetooth.ServiceElement"/> holding the /// data from the /// <see cref="F:InTheHand.Net.Bluetooth.AttributeIds.UniversalAttributeId.LanguageBaseAttributeIdList"/> /// attribute. /// </param> /// - /// <returns> /// An array of <see cref="T:InTheHand.Net.Bluetooth.LanguageBaseItem"/>. /// An array length zero is returned if the service record contains no such attribute. /// </returns> /// - /// <exception cref="T:System.ArgumentException"> /// <paramref name="elementSequence"/> is not of type /// <see cref="F:InTheHand.Net.Bluetooth.ElementType.ElementSequence"/>. /// </exception> /// <exception cref="T:System.Net.ProtocolViolationException"> /// The element sequence contains incorrectly formatted or invalid content, /// for example it contains the wrong element data types, or doesn't contain /// the elements in groups of three as required. /// </exception> public static LanguageBaseItem[] ParseListFromElementSequence(ServiceElement elementSequence) { if (elementSequence.ElementType != ElementType.ElementSequence) { throw new ArgumentException(ErrorMsgLangBaseListParseNotSequence); } #if V1 IList elementList = elementSequence.GetValueAsElementList(); #else IList<ServiceElement> elementList = elementSequence.GetValueAsElementList(); #endif int numElements = elementList.Count; const int ElementsPerItem = 3; if (numElements == 0 || (numElements % ElementsPerItem) != 0) { throw new System.Net.ProtocolViolationException(ErrorMsgLangBaseListParseNotInThrees); } int numItems = numElements / ElementsPerItem; LanguageBaseItem[] items = new LanguageBaseItem[numItems]; for (int i = 0; i < numItems; ++i) { // Casts are for the non-Generic version. ServiceElement e1Lang = (ServiceElement)elementList[i * ElementsPerItem]; ServiceElement e2EncId = (ServiceElement)elementList[i * ElementsPerItem + 1]; ServiceElement e3BaseId = (ServiceElement)elementList[i * ElementsPerItem + 2]; if (e1Lang.ElementType != ElementType.UInt16 || e2EncId.ElementType != ElementType.UInt16 || e3BaseId.ElementType != ElementType.UInt16) { throw new System.Net.ProtocolViolationException(ErrorMsgLangBaseListParseNotU16); } if ((UInt16)e3BaseId.Value == 0) { throw new System.Net.ProtocolViolationException(ErrorMsgLangBaseListParseBaseInvalid); } LanguageBaseItem item = new LanguageBaseItem( (UInt16)e1Lang.Value, (UInt16)e2EncId.Value, (UInt16)e3BaseId.Value); items[i] = item; } return items; }
private static void DumpElement(System.IO.TextWriter writer, int depth, ServiceElement elem) { WritePrefix(writer, depth); if (elem.ElementType == ElementType.ElementSequence || elem.ElementType == ElementType.ElementAlternative) { writer.WriteLine("{0}", elem.ElementType); foreach (ServiceElement element in elem.GetValueAsElementList()) { DumpElement(writer, depth + 1, element); }//for } else if (elem.ElementType == ElementType.Nil) { writer.WriteLine("Nil:"); } else if (elem.ElementType == ElementType.TextString) { DumpString(writer, depth, elem, null); } else if (elem.ElementType == ElementType.Boolean || elem.ElementType == ElementType.Url) { // Non-numeric types writer.WriteLine("{0}: {1}", elem.ElementType, elem.Value); } else { String name = null; String valueText = null; if (elem.ElementTypeDescriptor == ElementTypeDescriptor.Uuid) { if (elem.ElementType == ElementType.Uuid16) { name = BluetoothService.GetName((UInt16)elem.Value); } else if (elem.ElementType == ElementType.Uuid32) { name = BluetoothService.GetName((UInt32)elem.Value); } else { System.Diagnostics.Debug.Assert(elem.ElementType == ElementType.Uuid128); name = BluetoothService.GetName((Guid)elem.Value); valueText = ((Guid)elem.Value).ToString(); } }//if UUID if (valueText == null) { if (elem.ElementTypeDescriptor == ElementTypeDescriptor.Unknown) { valueText = "unknown"; } else if (elem.ElementType == ElementType.UInt128 || elem.ElementType == ElementType.Int128) { valueText = BitConverter.ToString((byte[])elem.Value); } else { valueText = String.Format(System.Globalization.CultureInfo.InvariantCulture, "0x{0:X}", elem.Value); } } if (name == null) { writer.WriteLine("{0}: {1}", elem.ElementType, valueText); } else { writer.WriteLine("{0}: {1} -- {2}", elem.ElementType, valueText, name); } }//else }
/// <summary> /// Create the element in the buffer starting at offset, and return its totalLength. /// </summary> /// <param name="element">The element to create. /// </param> /// <param name="buf">The byte array to write the encoded element to. /// </param> /// <param name="offset">The place to start writing in <paramref name="buf"/>. /// </param> /// /// <returns>The total length of the encoded element written to the buffer /// </returns> protected virtual int CreateElement(ServiceElement element, byte[] buf, int offset) { int totalLength; // if (element.ElementTypeDescriptor == ElementTypeDescriptor.ElementSequence || element.ElementTypeDescriptor == ElementTypeDescriptor.ElementAlternative) { HeaderWriteState headerState; int curLen; curLen = MakeVariableLengthHeader(buf, offset, element.ElementTypeDescriptor, out headerState); offset += curLen; foreach (ServiceElement childElement in element.GetValueAsElementList()) { curLen = CreateElement(childElement, buf, offset); offset += curLen; }//for CompleteHeaderWrite(headerState, buf, offset, out totalLength); //---------------- } else if (element.ElementTypeDescriptor == ElementTypeDescriptor.UnsignedInteger || element.ElementTypeDescriptor == ElementTypeDescriptor.TwosComplementInteger) { switch (element.ElementType) { case ElementType.UInt8: WriteByte(element, (Byte)element.Value, buf, ref offset, out totalLength); break; case ElementType.Int8: WriteSByte(element, (SByte)element.Value, buf, ref offset, out totalLength); break; case ElementType.UInt16: WriteUInt16(element, (UInt16)element.Value, buf, ref offset, out totalLength); break; case ElementType.Int16: WriteInt16(element, (Int16)element.Value, buf, ref offset, out totalLength); break; case ElementType.UInt32: WriteUInt32(element, (UInt32)element.Value, buf, ref offset, out totalLength); break; case ElementType.Int32: WriteInt32(element, (Int32)element.Value, buf, ref offset, out totalLength); break; case ElementType.UInt64: WriteUInt64(element, (UInt64)element.Value, buf, ref offset, out totalLength); break; case ElementType.Int64: WriteInt64(element, (Int64)element.Value, buf, ref offset, out totalLength); break; default: System.Diagnostics.Debug.Fail(String.Format(System.Globalization.CultureInfo.InvariantCulture, "Unexpected integral type '{0}'.", element.ElementType)); totalLength = 0; break; }//switch //---------------- } else if (element.ElementTypeDescriptor == ElementTypeDescriptor.Uuid) { if (element.ElementType == ElementType.Uuid16) { WriteUInt16(element, (UInt16)element.Value, buf, ref offset, out totalLength); } else if (element.ElementType == ElementType.Uuid32) { WriteUInt32(element, (UInt32)element.Value, buf, ref offset, out totalLength); } else { //TODO If the 'Guid' holds a 'Bluetooth-based' UUID, then should we write the short form? byte[] bytes; System.Diagnostics.Debug.Assert(element.ElementType == ElementType.Uuid128); Guid hostGuid = (Guid)element.Value; Guid netGuid = Sockets.BluetoothListener.HostToNetworkOrder(hostGuid); bytes = netGuid.ToByteArray(); WriteFixedLength(element, bytes, buf, ref offset, out totalLength); } //---------------- } else if (element.ElementTypeDescriptor == ElementTypeDescriptor.Url) { Uri uri = element.GetValueAsUri(); String uriString = uri.ToString(); byte[] valueBytes = System.Text.Encoding.ASCII.GetBytes(uriString); WriteVariableLength(element, valueBytes, buf, ref offset, out totalLength); //---------------- } else if (element.ElementTypeDescriptor == ElementTypeDescriptor.TextString) { byte[] valueBytes; String valueString = element.Value as String; if (valueString != null) { valueBytes = System.Text.Encoding.UTF8.GetBytes(valueString); } else { System.Diagnostics.Debug.Assert(element.Value is byte[]); valueBytes = (byte[])element.Value; } WriteVariableLength(element, valueBytes, buf, ref offset, out totalLength); //---------------- } else if (element.ElementTypeDescriptor == ElementTypeDescriptor.Nil) { WriteFixedLength(element, new byte[0], buf, ref offset, out totalLength); //---------------- } else if (element.ElementTypeDescriptor == ElementTypeDescriptor.Boolean) { bool value = (bool)element.Value; byte[] valueBytes = new byte[1]; valueBytes[0] = value ? (byte)1 : (byte)0; WriteFixedLength(element, valueBytes, buf, ref offset, out totalLength); //---------------- } else { totalLength = 0; } // if (totalLength == 0) { throw new NotSupportedException(String.Format(System.Globalization.CultureInfo.InvariantCulture, "Creation of element type '{0}' not implemented.", element.ElementType)); } return(totalLength); }
private int CreateElement(ServiceElement element, byte[] buf, int offset) { int totalLength; // if (element.ElementTypeDescriptor == ElementTypeDescriptor.ElementSequence || element.ElementTypeDescriptor == ElementTypeDescriptor.ElementAlternative) { HeaderWriteState headerState; int curLen; curLen = MakeVariableLengthHeader(buf, offset, element.ElementTypeDescriptor, out headerState); offset += curLen; foreach (ServiceElement childElement in element.GetValueAsElementList()) { curLen = CreateElement(childElement, buf, offset); offset += curLen; }//for CompleteHeaderWrite(headerState, buf, offset, out totalLength); //---------------- } else if (element.ElementTypeDescriptor == ElementTypeDescriptor.UnsignedInteger || element.ElementTypeDescriptor == ElementTypeDescriptor.TwosComplementInteger) { switch (element.ElementType) { case ElementType.UInt8: WriteByte(element, (Byte)element.Value, buf, ref offset, out totalLength); break; case ElementType.Int8: WriteSByte(element, (SByte)element.Value, buf, ref offset, out totalLength); break; case ElementType.UInt16: WriteUInt16(element, (UInt16)element.Value, buf, ref offset, out totalLength); break; case ElementType.Int16: WriteInt16(element, (Int16)element.Value, buf, ref offset, out totalLength); break; case ElementType.UInt32: WriteUInt32(element, (UInt32)element.Value, buf, ref offset, out totalLength); break; case ElementType.Int32: WriteInt32(element, (Int32)element.Value, buf, ref offset, out totalLength); break; default: System.Diagnostics.Debug.Fail(String.Format(System.Globalization.CultureInfo.InvariantCulture, "Unexpected integral type '{0}'.", element.ElementType)); totalLength = 0; break; }//switch //---------------- } else if (element.ElementTypeDescriptor == ElementTypeDescriptor.Uuid) { if (element.ElementType == ElementType.Uuid16) { WriteUInt16(element, (UInt16)element.Value, buf, ref offset, out totalLength); } else if (element.ElementType == ElementType.Uuid32) { WriteUInt32(element, (UInt32)element.Value, buf, ref offset, out totalLength); } else { //TODO If the 'Guid' holds a 'Bluetooth-based' UUID, then should we write the short form? byte[] bytes; System.Diagnostics.Debug.Assert(element.ElementType == ElementType.Uuid128); Guid hostGuid = (Guid)element.Value; Guid netGuid = Sockets.BluetoothListener.HostToNetworkOrder(hostGuid); bytes = netGuid.ToByteArray(); WriteFixedLength(element, bytes, buf, ref offset, out totalLength); } //---------------- } else if (element.ElementTypeDescriptor == ElementTypeDescriptor.Url) { Uri uri = element.GetValueAsUri(); String uriString = uri.ToString(); byte[] valueBytes = System.Text.Encoding.ASCII.GetBytes(uriString); WriteVariableLength(element, valueBytes, buf, ref offset, out totalLength); //---------------- } else if (element.ElementTypeDescriptor == ElementTypeDescriptor.TextString) { byte[] valueBytes; String valueString = element.Value as String; if (valueString != null) { valueBytes = System.Text.Encoding.UTF8.GetBytes(valueString); } else { System.Diagnostics.Debug.Assert(element.Value is byte[]); valueBytes = (byte[])element.Value; } WriteVariableLength(element, valueBytes, buf, ref offset, out totalLength); //---------------- } else if (element.ElementTypeDescriptor == ElementTypeDescriptor.Nil) { WriteFixedLength(element, new byte[0], buf, ref offset, out totalLength); //---------------- } else if (element.ElementTypeDescriptor == ElementTypeDescriptor.Boolean) { bool value = (bool)element.Value; byte[] valueBytes = new byte[1]; valueBytes[0] = value ? (byte)1 : (byte)0; WriteFixedLength(element, valueBytes, buf, ref offset, out totalLength); //---------------- } else { totalLength = 0; } // if (totalLength == 0) { throw new NotSupportedException(String.Format(System.Globalization.CultureInfo.InvariantCulture, "Creation of element type '{0}' not implemented.", element.ElementType)); } return totalLength; }