internal override long WriteTo(Stream stream, EncodingOptions encodingOptions, MimeOutputFilter filter, ref MimeStringLength currentLineLength, ref byte[] scratchBuffer)
{
long num = base.WriteName(stream, ref scratchBuffer);
currentLineLength.IncrementBy((int)num);
if (!base.IsDirty && base.RawLength != 0 && base.IsProtected)
{
long num2 = Header.WriteLines(base.Lines, stream);
num += num2;
currentLineLength.SetAs(0);
return(num);
}
if (!this.parsed)
{
this.Parse();
}
num += this.WriteValue(stream, encodingOptions, filter, ref currentLineLength, ref scratchBuffer);
for (MimeNode mimeNode = base.FirstChild; mimeNode != null; mimeNode = mimeNode.NextSibling)
{
stream.Write(MimeString.Semicolon, 0, MimeString.Semicolon.Length);
num += (long)MimeString.Semicolon.Length;
currentLineLength.IncrementBy(MimeString.Semicolon.Length);
num += mimeNode.WriteTo(stream, encodingOptions, filter, ref currentLineLength, ref scratchBuffer);
}
return(num + Header.WriteLineEnd(stream, ref currentLineLength));
}
// Token: 0x06000238 RID: 568 RVA: 0x00009D80 File Offset: 0x00007F80
internal override MimeNode ValidateNewChild(MimeNode newChild, MimeNode refChild)
{
Header header = newChild as Header;
if (header == null)
{
throw new ArgumentException(Strings.NewChildNotMimeHeader, "newChild");
}
HeaderId headerId = header.HeaderId;
if (Header.IsRestrictedHeader(headerId))
{
if (this.headerMap[(int)headerId] != 0)
{
Header header2 = this.FindFirst(headerId);
if (header2 == refChild)
{
refChild = header2.PreviousSibling;
}
base.InternalRemoveChild(header2);
}
byte[] array = this.headerMap;
HeaderId headerId2 = headerId;
array[(int)headerId2] = array[(int)headerId2] + 1;
}
else if (this.headerMap[(int)headerId] != 255)
{
byte[] array2 = this.headerMap;
HeaderId headerId3 = headerId;
array2[(int)headerId3] = array2[(int)headerId3] + 1;
}
return(refChild);
}
// Token: 0x06000304 RID: 772 RVA: 0x00010EDF File Offset: 0x0000F0DF
internal override MimeNode ValidateNewChild(MimeNode newChild, MimeNode refChild)
{
if (this.allowAppend)
{
return(refChild);
}
throw new NotSupportedException(Strings.ParametersCannotHaveChildNodes);
}
internal override MimeNode ValidateNewChild(MimeNode newChild, MimeNode refChild)
{
if (!(newChild is MimeRecipient))
{
throw new ArgumentException(Strings.NewChildIsNotARecipient);
}
return(refChild);
}
// Token: 0x0600018F RID: 399 RVA: 0x00007271 File Offset: 0x00005471
internal override MimeNode ValidateNewChild(MimeNode newChild, MimeNode refChild)
{
if (!(newChild is MimeRecipient) && !(newChild is MimeGroup))
{
throw new ArgumentException(Strings.NewChildNotRecipientOrGroup, "newChild");
}
return(refChild);
}
internal void WriteMimeNode(MimeNode node)
{
if (node == null)
{
throw new ArgumentNullException("node");
}
Header header = node as Header;
if (header != null)
{
this.WriteHeader(header);
this.FlushHeader();
return;
}
MimePart mimePart = node as MimePart;
if (mimePart != null)
{
this.StartPart();
mimePart.WriteTo(this.shimStream, this.encodingOptions);
this.EndPart();
return;
}
HeaderList headerList = node as HeaderList;
if (headerList != null)
{
foreach (Header header2 in headerList)
{
this.WriteHeader(header);
}
this.FlushHeader();
return;
}
node = node.Clone();
MimeRecipient mimeRecipient = node as MimeRecipient;
if (mimeRecipient != null)
{
this.WriteRecipient(mimeRecipient);
return;
}
MimeParameter mimeParameter = node as MimeParameter;
if (mimeParameter != null)
{
this.WriteParameter(mimeParameter);
return;
}
MimeGroup mimeGroup = node as MimeGroup;
if (mimeGroup != null)
{
this.StartGroup(mimeGroup);
this.EndGroup();
}
}
// Token: 0x06000239 RID: 569 RVA: 0x00009E24 File Offset: 0x00008024
internal override void ChildRemoved(MimeNode oldChild)
{
Header header = oldChild as Header;
HeaderId headerId = header.HeaderId;
if (this.headerMap[(int)headerId] != 255)
{
byte[] array = this.headerMap;
HeaderId headerId2 = headerId;
array[(int)headerId2] = array[(int)headerId2] - 1;
}
}
internal override MimeNode ParseNextChild()
{
if (this.parsed)
{
return(null);
}
MimeNode internalLastChild = base.InternalLastChild;
this.Parse();
if (internalLastChild != null)
{
return(internalLastChild.NextSibling);
}
return(base.FirstChild);
}
// Token: 0x06000303 RID: 771 RVA: 0x00010E84 File Offset: 0x0000F084
internal override MimeNode ParseNextChild()
{
if (this.valueFragments.Length != 0 || this.decodedValue == null || this.decodedValue.Length == 0)
{
return(null);
}
MimeNode internalLastChild = base.InternalLastChild;
if (internalLastChild != null)
{
return(null);
}
this.valueFragments = this.EncodeValue(this.decodedValue, base.GetDocumentEncodingOptions());
return(base.FirstChild);
}
internal override MimeNode ParseNextChild()
{
MimeNode mimeNode = null;
if (!this.parsed && base.Parent != null)
{
AddressHeader addressHeader = base.Parent as AddressHeader;
if (addressHeader != null)
{
mimeNode = addressHeader.ParseNextMailBox(true);
}
}
this.parsed = (mimeNode == null);
return(mimeNode);
}
// Token: 0x0600018B RID: 395 RVA: 0x00007074 File Offset: 0x00005274
internal override long WriteTo(Stream stream, EncodingOptions encodingOptions, MimeOutputFilter filter, ref MimeStringLength currentLineLength, ref byte[] scratchBuffer)
{
long num = base.WriteName(stream, ref scratchBuffer);
currentLineLength.IncrementBy((int)num);
if (!base.IsDirty && base.RawLength != 0)
{
if (base.IsProtected)
{
num += Header.WriteLines(base.Lines, stream);
currentLineLength.SetAs(0);
return(num);
}
if (base.InternalLastChild == null)
{
bool flag = false;
if (!base.IsHeaderLineTooLong(num, out flag))
{
num += Header.WriteLines(base.Lines, stream);
currentLineLength.SetAs(0);
return(num);
}
}
}
if (!this.parsed)
{
this.Parse();
}
MimeNode mimeNode = base.FirstChild;
int num2 = 0;
while (mimeNode != null)
{
if (1 < ++num2)
{
stream.Write(MimeString.Comma, 0, MimeString.Comma.Length);
num += (long)MimeString.Comma.Length;
currentLineLength.IncrementBy(MimeString.Comma.Length);
}
num += mimeNode.WriteTo(stream, encodingOptions, filter, ref currentLineLength, ref scratchBuffer);
mimeNode = mimeNode.NextSibling;
}
return(num + Header.WriteLineEnd(stream, ref currentLineLength));
}
public MimeParameter this[string name]
{
get
{
if (name == null)
{
throw new ArgumentNullException("name");
}
for (MimeNode mimeNode = base.FirstChild; mimeNode != null; mimeNode = mimeNode.NextSibling)
{
MimeParameter mimeParameter = mimeNode as MimeParameter;
if (mimeParameter.IsName(name))
{
return(mimeParameter);
}
}
return(null);
}
}
internal override MimeNode ValidateNewChild(MimeNode newChild, MimeNode refChild)
{
MimeParameter mimeParameter = newChild as MimeParameter;
if (mimeParameter == null)
{
throw new ArgumentException(Strings.NewChildNotMimeParameter, "newChild");
}
MimeParameter mimeParameter2 = this[mimeParameter.Name];
if (mimeParameter2 != null)
{
if (mimeParameter2 == refChild)
{
refChild = mimeParameter2.PreviousSibling;
}
base.InternalRemoveChild(mimeParameter2);
}
return(refChild);
}
internal override long WriteTo(Stream stream, EncodingOptions encodingOptions, MimeOutputFilter filter, ref MimeStringLength currentLineLength, ref byte[] scratchBuffer)
{
MimeNode nextSibling = base.NextSibling;
MimeStringList displayNameToWrite = base.GetDisplayNameToWrite(encodingOptions);
long num = 0L;
if (displayNameToWrite.GetLength(4026531839U) != 0)
{
int num2 = 1;
if (base.FirstChild == null)
{
num2++;
}
if (base.NextSibling != null)
{
num2++;
}
num += Header.QuoteAndFold(stream, displayNameToWrite, 4026531839U, base.IsQuotingRequired(displayNameToWrite, encodingOptions.AllowUTF8), true, encodingOptions.AllowUTF8, num2, ref currentLineLength, ref scratchBuffer);
stream.Write(MimeString.Colon, 0, MimeString.Colon.Length);
num += (long)MimeString.Colon.Length;
currentLineLength.IncrementBy(MimeString.Colon.Length);
}
MimeNode mimeNode = base.FirstChild;
int num3 = 0;
while (mimeNode != null)
{
if (1 < ++num3)
{
stream.Write(MimeString.Comma, 0, MimeString.Comma.Length);
num += (long)MimeString.Comma.Length;
currentLineLength.IncrementBy(MimeString.Comma.Length);
}
num += mimeNode.WriteTo(stream, encodingOptions, filter, ref currentLineLength, ref scratchBuffer);
mimeNode = mimeNode.NextSibling;
}
stream.Write(MimeString.Semicolon, 0, MimeString.Semicolon.Length);
num += (long)MimeString.Semicolon.Length;
currentLineLength.IncrementBy(MimeString.Semicolon.Length);
return(num);
}
// Token: 0x0600018D RID: 397 RVA: 0x00007174 File Offset: 0x00005374
internal override MimeNode ParseNextChild()
{
if (this.parsed)
{
return(null);
}
MimeNode internalLastChild = base.InternalLastChild;
MimeNode mimeNode;
if (internalLastChild is MimeGroup)
{
while (internalLastChild.ParseNextChild() != null)
{
}
mimeNode = internalLastChild.InternalNextSibling;
}
else
{
mimeNode = this.ParseNextMailBox(false);
}
this.parsed = (mimeNode == null);
return(mimeNode);
}
// Token: 0x06000237 RID: 567 RVA: 0x00009CEC File Offset: 0x00007EEC
internal override long WriteTo(Stream stream, EncodingOptions encodingOptions, MimeOutputFilter filter, ref MimeStringLength currentLineLength, ref byte[] scratchBuffer)
{
MimePart.CountingWriteStream countingWriteStream = null;
MimePart.CountingWriteStream countingWriteStream2 = null;
long num = 0L;
long num2 = 0L;
if (filter != null)
{
countingWriteStream = (stream as MimePart.CountingWriteStream);
if (countingWriteStream == null)
{
countingWriteStream2 = new MimePart.CountingWriteStream(stream);
countingWriteStream = countingWriteStream2;
stream = countingWriteStream;
}
num = countingWriteStream.Count;
}
for (MimeNode mimeNode = base.FirstChild; mimeNode != null; mimeNode = mimeNode.NextSibling)
{
if (filter == null || !filter.FilterHeader(mimeNode as Header, countingWriteStream))
{
num2 += mimeNode.WriteTo(stream, encodingOptions, filter, ref currentLineLength, ref scratchBuffer);
}
}
if (countingWriteStream != null)
{
num2 = countingWriteStream.Count - num;
if (countingWriteStream2 != null)
{
countingWriteStream2.Dispose();
}
}
currentLineLength.SetAs(0);
return(num2);
}
// Token: 0x06000227 RID: 551 RVA: 0x00009821 File Offset: 0x00007A21
internal HeaderList(MimeNode parent) : base(parent)
{
}
// Token: 0x06000543 RID: 1347 RVA: 0x0001CD84 File Offset: 0x0001AF84
internal override MimeNode ValidateNewChild(MimeNode newChild, MimeNode refChild)
{
throw new NotSupportedException(Strings.RecipientsCannotHaveChildNodes);
}
// Token: 0x0600030B RID: 779 RVA: 0x000112A8 File Offset: 0x0000F4A8
private bool TryDecodeRfc2231(ref DecodingOptions decodingOptions, out DecodingResults decodingResults, out string value)
{
decodingResults = default(DecodingResults);
decodingResults.EncodingScheme = EncodingScheme.Rfc2231;
Charset charset = null;
byte[] sz = this.valueFragments.GetSz(4026531839U);
int num = 0;
if (this.valueEncoded)
{
int num2 = (sz == null) ? -1 : ByteString.IndexOf(sz, 39, 0, sz.Length);
if (-1 < num2 && num2 < sz.Length - 1)
{
int num3 = ByteString.IndexOf(sz, 39, ++num2, sz.Length - num2);
if (-1 < num3)
{
decodingResults.CharsetName = ByteString.BytesToString(sz, 0, num2 - 1, false);
decodingResults.CultureName = ByteString.BytesToString(sz, num2, num3 - num2, false);
if (!Charset.TryGetCharset(decodingResults.CharsetName, out charset))
{
decodingResults.DecodingFailed = true;
return(this.FallBackIfRequired(sz, decodingOptions, out value));
}
num = num3 + 1;
}
}
}
if (charset == null)
{
charset = decodingOptions.Charset;
if (charset == null)
{
charset = DecodingOptions.DefaultCharset;
}
}
decodingResults.CharsetName = charset.Name;
Encoding encoding;
if (!charset.TryGetEncoding(out encoding))
{
decodingResults.DecodingFailed = true;
return(this.FallBackIfRequired(sz, decodingOptions, out value));
}
int num4 = this.valueFragments.Length - num;
for (MimeNode mimeNode = base.FirstChild; mimeNode != null; mimeNode = mimeNode.NextSibling)
{
MimeParameter mimeParameter = mimeNode as MimeParameter;
if (mimeParameter != null)
{
num4 += mimeParameter.RawLength;
}
}
byte[] array = new byte[num4];
int num5 = 0;
if (sz != null && num < sz.Length)
{
num5 += this.DecodeRfc2231Octets(this.valueEncoded, sz, num, array, 0);
}
for (MimeNode mimeNode = base.FirstChild; mimeNode != null; mimeNode = mimeNode.NextSibling)
{
MimeParameter mimeParameter2 = mimeNode as MimeParameter;
if (mimeParameter2 != null)
{
byte[] rawValue = mimeParameter2.RawValue;
if (rawValue != null)
{
num5 += this.DecodeRfc2231Octets(mimeParameter2.valueEncoded, mimeParameter2.RawValue, 0, array, num5);
}
}
}
value = ((num5 != 0) ? encoding.GetString(array, 0, num5) : string.Empty);
if ((DecodingFlags.AllowControlCharacters & decodingOptions.DecodingFlags) == DecodingFlags.None)
{
value = MimeParameter.CorrectValue(value);
}
return(true);
}
internal Enumerator(MimeNode node)
{
this.node = node;
this.current = default(T);
this.next = (this.node.FirstChild as T);
}
internal override MimeNode ValidateNewChild(MimeNode newChild, MimeNode refChild)
{
throw new NotSupportedException(Strings.ChildrenCannotBeAddedToReceivedHeader);
}
internal override MimeNode ValidateNewChild(MimeNode newChild, MimeNode refChild)
{
throw new NotSupportedException(Strings.CannotAddChildrenToMimeHeaderDate);
}
internal void ParseParameters(ref ValueParser parser, DecodingOptions decodingOptions, int countLimit, int bytesLimit)
{
MimeStringList mimeStringList = default(MimeStringList);
MimeStringList mimeStringList2 = default(MimeStringList);
bool flag = false;
int num = 0;
bool flag2 = DecodingFlags.None != (DecodingFlags.Rfc2231 & decodingOptions.DecodingFlags);
for (;;)
{
parser.ParseCFWS(false, ref mimeStringList, this.handleISO2022);
byte b = parser.ParseGet();
if (b != 59)
{
if (b == 0)
{
break;
}
parser.ParseUnget();
parser.ParseSkipToNextDelimiterByte(59);
}
else
{
parser.ParseCFWS(false, ref mimeStringList, this.handleISO2022);
MimeString mimeString = parser.ParseToken();
if (mimeString.Length != 0 && mimeString.Length < 128)
{
parser.ParseCFWS(false, ref mimeStringList, this.handleISO2022);
b = parser.ParseGet();
if (b != 61)
{
if (b == 0)
{
return;
}
parser.ParseUnget();
}
else
{
parser.ParseCFWS(false, ref mimeStringList, this.handleISO2022);
parser.ParseParameterValue(ref mimeStringList2, ref flag, this.handleISO2022);
if (2147483647 != countLimit || 2147483647 != bytesLimit)
{
if (++num > countLimit)
{
goto Block_8;
}
if (mimeStringList2.Length > bytesLimit)
{
goto Block_9;
}
}
else
{
bool valueEncoded = false;
int num2 = -1;
if (flag2)
{
int num3 = ByteString.IndexOf(mimeString.Data, 42, mimeString.Offset, mimeString.Length);
if (num3 > 0)
{
int num4 = mimeString.Offset + mimeString.Length;
int num5 = num3 + 1;
num2 = 0;
while (num5 != num4 && mimeString.Data[num5] >= 48 && mimeString.Data[num5] <= 57)
{
num2 = num2 * 10 + (int)(mimeString.Data[num5] - 48);
if (10000 < num2)
{
num2 = -1;
break;
}
num5++;
}
if (-1 != num2)
{
bool flag3 = 42 == mimeString.Data[num4 - 1];
if (num5 < num4 - 1 || (num5 < num4 && !flag3))
{
num2 = -1;
}
else
{
valueEncoded = flag3;
mimeString.TrimRight(num4 - num3);
}
}
}
}
string text = Header.NormalizeString(mimeString.Data, mimeString.Offset, mimeString.Length, false);
MimeParameter mimeParameter = new MimeParameter(text);
mimeParameter.AppendValue(ref mimeStringList2);
mimeParameter.SegmentNumber = num2;
mimeParameter.ValueEncoded = valueEncoded;
MimeNode mimeNode;
MimeNode nextSibling;
for (mimeNode = base.FirstChild; mimeNode != null; mimeNode = nextSibling)
{
nextSibling = mimeNode.NextSibling;
MimeParameter mimeParameter2 = mimeNode as MimeParameter;
if (mimeParameter2 != null && mimeParameter2.Name == text)
{
break;
}
}
if (0 >= num2)
{
if (mimeNode != null)
{
mimeParameter.AllowAppend = true;
for (MimeNode mimeNode2 = mimeNode.FirstChild; mimeNode2 != null; mimeNode2 = nextSibling)
{
nextSibling = mimeNode2.NextSibling;
if (mimeNode2 is MimeParameter)
{
mimeNode.RemoveChild(mimeNode2);
mimeParameter.InternalAppendChild(mimeNode2);
}
}
mimeParameter.AllowAppend = false;
base.InternalRemoveChild(mimeNode);
}
base.InternalAppendChild(mimeParameter);
}
else
{
if (mimeNode == null)
{
MimeParameter mimeParameter3 = new MimeParameter(text);
mimeParameter3.SegmentNumber = 0;
base.InternalAppendChild(mimeParameter3);
mimeNode = mimeParameter3;
}
MimeNode mimeNode3;
MimeNode previousSibling;
for (mimeNode3 = mimeNode.LastChild; mimeNode3 != null; mimeNode3 = previousSibling)
{
previousSibling = mimeNode3.PreviousSibling;
MimeParameter mimeParameter4 = mimeNode3 as MimeParameter;
if (mimeParameter4 != null && mimeParameter4.SegmentNumber <= num2)
{
break;
}
}
MimeParameter mimeParameter5 = (MimeParameter)mimeNode;
mimeParameter5.AllowAppend = true;
mimeParameter5.InternalInsertAfter(mimeParameter, mimeNode3);
mimeParameter5.AllowAppend = false;
}
}
}
}
}
if (b == 0)
{
return;
}
}
return;
Block_8:
throw new MimeException(Strings.TooManyParameters(num, countLimit));
Block_9:
throw new MimeException(Strings.TooManyTextValueBytes(mimeStringList2.Length, bytesLimit));
}
internal override MimeNode ValidateNewChild(MimeNode newChild, MimeNode refChild)
{
throw new NotSupportedException(Strings.AddingChildrenToAsciiTextHeader);
}
// Token: 0x06000302 RID: 770 RVA: 0x00010A58 File Offset: 0x0000EC58
internal override long WriteTo(Stream stream, EncodingOptions encodingOptions, MimeOutputFilter filter, ref MimeStringLength currentLineLength, ref byte[] scratchBuffer)
{
MimeStringList fragments = this.valueFragments;
long num = 0L;
if (this.valueFragments.Length == 0 && this.decodedValue != null && 0 < this.decodedValue.Length)
{
fragments = this.EncodeValue(this.decodedValue, encodingOptions);
this.valueFragments = fragments;
}
else if ((byte)(EncodingFlags.ForceReencode & encodingOptions.EncodingFlags) != 0 && 0 >= this.segmentNumber)
{
fragments = this.EncodeValue(this.Value, encodingOptions);
}
bool flag = false;
if (this.IsQuotingReqired() || fragments.Length == 0)
{
flag = true;
}
else
{
for (int i = 0; i < fragments.Count; i++)
{
MimeString str = fragments[i];
int num2 = 0;
int num3 = ValueParser.ParseToken(str, out num2, encodingOptions.AllowUTF8);
if (268435456U != str.Mask && str.Length != num3)
{
flag = true;
break;
}
}
}
MimeNode mimeNode = null;
if (this.segmentNumber == 0)
{
mimeNode = base.FirstChild;
while (mimeNode != null && !(mimeNode is MimeParameter))
{
mimeNode = mimeNode.NextSibling;
}
}
MimeString mimeString = ((this.segmentNumber == 0 && mimeNode != null) || 0 < this.segmentNumber) ? new MimeString(this.segmentNumber.ToString()) : default(MimeString);
if (1 < currentLineLength.InChars)
{
int num4 = 1 + this.paramName.Length + 1;
byte[] sz = fragments.GetSz();
int num5 = ByteString.BytesToCharCount(sz, encodingOptions.AllowUTF8);
if (mimeString.Length != 0)
{
num4 += 1 + mimeString.Length;
}
if (this.valueEncoded)
{
num4++;
}
int num6 = num5;
if (flag)
{
num6 += 2;
}
if (base.NextSibling != null)
{
if (num5 == 0)
{
num4++;
}
else
{
num6++;
}
}
num6 += num4;
if (currentLineLength.InChars + num6 > 78)
{
num += Header.WriteLineEnd(stream, ref currentLineLength);
stream.Write(Header.LineStartWhitespace, 0, Header.LineStartWhitespace.Length);
num += (long)Header.LineStartWhitespace.Length;
currentLineLength.IncrementBy(Header.LineStartWhitespace.Length);
}
else
{
stream.Write(MimeString.Space, 0, MimeString.Space.Length);
num += (long)MimeString.Space.Length;
currentLineLength.IncrementBy(MimeString.Space.Length);
}
}
int num7 = ByteString.StringToBytesCount(this.paramName, false);
if (scratchBuffer == null || scratchBuffer.Length < num7)
{
scratchBuffer = new byte[Math.Max(998, num7)];
}
int num8 = ByteString.StringToBytes(this.paramName, scratchBuffer, 0, false);
stream.Write(scratchBuffer, 0, num8);
num += (long)num8;
currentLineLength.IncrementBy(this.paramName.Length, num8);
if (mimeString.Length != 0)
{
stream.Write(MimeString.Asterisk, 0, MimeString.Asterisk.Length);
num += (long)MimeString.Asterisk.Length;
currentLineLength.IncrementBy(MimeString.Asterisk.Length);
mimeString.WriteTo(stream);
num += (long)mimeString.Length;
currentLineLength.IncrementBy(mimeString.Length);
}
if (this.valueEncoded)
{
stream.Write(MimeString.Asterisk, 0, MimeString.Asterisk.Length);
num += (long)MimeString.Asterisk.Length;
currentLineLength.IncrementBy(MimeString.Asterisk.Length);
}
stream.Write(MimeString.EqualTo, 0, MimeString.EqualTo.Length);
num += (long)MimeString.EqualTo.Length;
currentLineLength.IncrementBy(MimeString.EqualTo.Length);
int num9 = 0;
if (base.NextSibling != null)
{
num9++;
}
num += Header.QuoteAndFold(stream, fragments, 4026531839U, flag, false, encodingOptions.AllowUTF8, num9, ref currentLineLength, ref scratchBuffer);
int num10 = 0;
while (mimeNode != null)
{
MimeParameter mimeParameter = mimeNode as MimeParameter;
if (mimeParameter != null)
{
num10++;
mimeParameter.segmentNumber = num10;
stream.Write(MimeString.Semicolon, 0, MimeString.Semicolon.Length);
num += (long)MimeString.Semicolon.Length;
currentLineLength.IncrementBy(MimeString.Semicolon.Length);
num += Header.WriteLineEnd(stream, ref currentLineLength);
stream.Write(Header.LineStartWhitespace, 0, Header.LineStartWhitespace.Length);
num += (long)Header.LineStartWhitespace.Length;
currentLineLength.IncrementBy(Header.LineStartWhitespace.Length);
num += mimeNode.WriteTo(stream, encodingOptions, null, ref currentLineLength, ref scratchBuffer);
}
mimeNode = mimeNode.NextSibling;
}
return(num);
}