public int Read(byte[] buffer, int position)
{
int read = 0;
HeaderReaderState state = HeaderReaderState.Reading;
for (int i = position; i < buffer.Length && state != HeaderReaderState.FoundSecondLF; i++)
{
char current = (char)buffer[i];
if (current == '\r')
{
switch (state)
{
case HeaderReaderState.Reading:
state = HeaderReaderState.FoundFirstCR;
break;
case HeaderReaderState.FoundFirstCR:
case HeaderReaderState.FoundFirstLF:
state = HeaderReaderState.FoundSecondCR;
break;
}
}
else if (current == '\n')
{
switch (state)
{
case HeaderReaderState.Reading:
case HeaderReaderState.FoundFirstCR:
state = HeaderReaderState.FoundFirstLF;
break;
case HeaderReaderState.FoundFirstLF:
case HeaderReaderState.FoundSecondCR:
state = HeaderReaderState.FoundSecondLF;
break;
}
}
else
{
state = HeaderReaderState.Reading;
}
read++;
}
headers.Append(encoding.GetString(buffer, position, read));
// If we found the blank line
if (state == HeaderReaderState.FoundSecondLF)
{
_headerComplete = true;
// Back off the last two lines
string tail = headers.ToString(headers.Length - 4, 4);
if (tail[2] == '\r')
{
headers.Length -= 4;
}
else if (tail[2] == '\n')
{
headers.Length -= 2;
}
}
return(read);
}
public int Read(byte[] buffer, int position)
{
int count = 0;
HeaderReaderState reading = HeaderReaderState.Reading;
for (int i = position; (i < buffer.Length) && (reading != HeaderReaderState.FoundSecondLF); i++)
{
switch (((char)buffer[i]))
{
case '\r':
switch (reading)
{
case HeaderReaderState.Reading:
reading = HeaderReaderState.FoundFirstCR;
break;
case HeaderReaderState.FoundFirstCR:
case HeaderReaderState.FoundFirstLF:
reading = HeaderReaderState.FoundSecondCR;
break;
}
break;
case '\n':
switch (reading)
{
case HeaderReaderState.Reading:
case HeaderReaderState.FoundFirstCR:
reading = HeaderReaderState.FoundFirstLF;
break;
case HeaderReaderState.FoundFirstLF:
case HeaderReaderState.FoundSecondCR:
reading = HeaderReaderState.FoundSecondLF;
break;
}
break;
default:
reading = HeaderReaderState.Reading;
break;
}
count++;
}
this.headers.Append(this.encoding.GetString(buffer, position, count));
if (reading == HeaderReaderState.FoundSecondLF)
{
this._headerComplete = true;
string str = this.headers.ToString(this.headers.Length - 4, 4);
if (str[2] == '\r')
{
this.headers.Length -= 4;
return(count);
}
if (str[2] == '\n')
{
this.headers.Length -= 2;
}
}
return(count);
}