Initialize an LO-status structure

The mi_lo_stat() function performs the following tasks:
  1. It obtains either a new or existing LO-status structure.
  2. It fills the LO-status structure with all status information for the smart large object that the specified LO file descriptor identifies.
Restriction: Do not handle memory allocation for an LO-status structure with system memory-allocation routines (such as malloc() or mi_alloc()) or by direct declaration. You must use the LO-status constructor, mi_lo_stat(), to allocate a new LO-status structure.