loader_input_t.readbytes

Read a multibyte value from the input file
     result - reference to the variable that will hold the result
     size   - size of the value. Usually is: 1, 2, 4, 8
     be     - treat bytes as big-endian?
Returns: 0:ok, -1:failure

long loader_input_t.readbytes(vref result, long size, long be);