public int Detach(ref byte[] appcBufFather, ref int apiUsedSizeFather, ref int apiAllocSizeFather)
{
if (((appcBufFather == null) && (apiUsedSizeFather == 0)) && (apiAllocSizeFather == 0))
{
this.m_pcBuf = null;
this.clear();
return(0);
}
if (appcBufFather == null)
{
return(-4);
}
appcBufFather = null;
apiUsedSizeFather = 0;
apiAllocSizeFather = 0;
appcBufFather = this.m_pcBuf;
apiUsedSizeFather = this.m_iUsedSize;
apiAllocSizeFather = this.m_iAllocSize;
byte[] x = TLVUtil.getCheckSum(this.m_pcBuf, this.m_ptHeader.getSize(), this.m_iUsedSize - this.m_ptHeader.getSize());
this.m_ptHeader.setCheckSum(x);
int num = this.m_iUsedSize - this.m_ptHeader.getSize();
this.m_ptHeader.setUsedSize(num);
this.m_pcBuf = null;
this.clear();
return(0);
}
public bool isValidTLVPack(byte[] apcBuf, int aiUsedSize, int offset)
{
if (apcBuf != null)
{
if (aiUsedSize < this.m_ptHeader.getSize())
{
return(false);
}
TLVPackHeader header = new TLVPackHeader {
h_pcBuf = apcBuf,
offset = offset
};
if (header.getMagic() != 0x81)
{
return(false);
}
int aiSize = aiUsedSize - header.getSize();
if (header.getUsedSize() != aiSize)
{
return(false);
}
byte[] buffer = TLVUtil.getCheckSum(apcBuf, offset + header.getSize(), aiSize);
byte[] buffer2 = header.getCheckSum();
if ((buffer[0] != buffer2[0]) || (buffer[1] != buffer2[1]))
{
return(false);
}
if (aiSize == 0)
{
return(true);
}
FixedSizeTLVBody body = new FixedSizeTLVBody();
tVariableSizeTLVItem item = new tVariableSizeTLVItem();
TLVBody body2 = null;
if (header.getMode() == 0)
{
body2 = body;
}
else if (header.getMode() == 1)
{
body2 = item;
}
else
{
return(false);
}
if (body2.MapTo(apcBuf, offset + aiUsedSize, offset + header.getSize()))
{
while (body2.iNextOffset != 0)
{
if (!body2.MapTo(apcBuf, offset + aiUsedSize, body2.iNextOffset))
{
return(false);
}
}
return(true);
}
}
return(false);
}
public int CopyTo(byte[] apcBuf, int offset, ref int apiSize)
{
if ((apcBuf == null) || (apiSize == 0))
{
return(-4);
}
if (apiSize < this.m_iUsedSize)
{
apiSize = this.m_iUsedSize;
return(-7);
}
byte[] x = TLVUtil.getCheckSum(this.m_pcBuf, this.m_ptHeader.getSize(), this.m_iUsedSize - this.m_ptHeader.getSize());
this.m_ptHeader.setCheckSum(x);
int num2 = this.m_iUsedSize - this.m_ptHeader.getSize();
this.m_ptHeader.setUsedSize(num2);
if (this.m_iUsedSize > 0)
{
Buffer.BlockCopy(this.m_pcBuf, 0, apcBuf, offset, this.m_iUsedSize);
}
apiSize = this.m_iUsedSize;
return(0);
}
