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#include "ClientReadBuffer.H"
#include "ClientChannel.H"
#include "util.H"
int
ClientReadBuffer::locateMessage(const unsigned char *start,
const unsigned char *end,
unsigned int &headerLength,
unsigned int &dataLength,
unsigned int &trailerLength)
{
unsigned int size = end - start;
if (size < 4)
return 0;
if (firstMessage_)
{
if (size < 12)
return 0;
if (*start == 0x42)
bigEndian_ = 1;
else
bigEndian_ = 0;
channel_->setBigEndian(bigEndian_);
dataLength = 12 + RoundUp4(GetUINT(start + 6, bigEndian_)) +
RoundUp4(GetUINT(start + 8, bigEndian_));
}
else
{
dataLength = (GetUINT(start + 2, bigEndian_) << 2);
}
if (size < dataLength)
return 0;
firstMessage_ = 0;
headerLength = 0;
trailerLength = 0;
return 1;
}
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