Method verify

plugins/e57/libE57Format/src/Packet.cpp:323–370

}

void DataPacketHeader::verify( unsigned bufferLength ) const
{
   // Verify that packet is correct type
   // cppcheck-suppress knownConditionTrueFalse; (data is read as a blob, so the const might not
   // be valid)
   if ( packetType != DATA_PACKET )
   {
      throw E57_EXCEPTION2( ErrorBadCVPacket,
                            "expected Data; packetType=" + toString( packetType ) );
   }

   // ??? check reserved flags zero?

   // Check packetLength is at least large enough to hold header
   unsigned packetLength = packetLogicalLengthMinus1 + 1;
   if ( packetLength < sizeof( *this ) )
   {
      throw E57_EXCEPTION2( ErrorBadCVPacket, "DATA; packetLength=" + toString( packetLength ) );
   }

   // Check packet length is multiple of 4
   if ( packetLength % 4 )
   {
      throw E57_EXCEPTION2( ErrorBadCVPacket, "DATA; packetLength=" + toString( packetLength ) );
   }

   // Check actual packet length is large enough.
   if ( bufferLength > 0 && packetLength > bufferLength )
   {
      throw E57_EXCEPTION2( ErrorBadCVPacket, "DATA; packetLength=" + toString( packetLength ) +
                                                 " bufferLength=" + toString( bufferLength ) );
   }

   // Make sure there is at least one entry in packet
   if ( hasRecords() && ( bytestreamCount == 0 ) )
   {
      throw E57_EXCEPTION2( ErrorBadCVPacket,
                            "DATA; bytestreamCount=" + toString( bytestreamCount ) );
   }

   // Check packet is at least long enough to hold bytestreamBufferLength array
   if ( ( sizeof( DataPacketHeader ) + 2 * bytestreamCount ) > packetLength )
   {
      throw E57_EXCEPTION2( ErrorBadCVPacket,
                            "DATA; packetLength=" + toString( packetLength ) +
                               " bytestreamCount=" + toString( bytestreamCount ) );
   }
}

#ifdef E57_ENABLE_DIAGNOSTIC_OUTPUT
void DataPacketHeader::dump( int indent, std::ostream &os ) const