Arguments

 

file_ptr

   A file pointer.
 

offset

   The offset, specified in bytes.
 

direction

   An integer indicating the position to which the offset is added
   to calculate the new position. The new position is the beginning
   of the file if direction is SEEK_SET, the current value of the
   file position indicator if direction is SEEK_CUR, or end-of-file
   if direction is SEEK_END.