IN  PLM_FILE pfile,
  OUT int *nbytes

Routine Description:

    This function is vaguely similar to fgets(3).

    Starting at the current seek position, it reads through a newline
    character, or the end of the file. If a newline is encountered, it
    is replaced with a NULL character.


    pfile   -  file to read from
    nbytes  -  the number of characters read, excluding the NULL character

Return Value:

    A pointer to the beginning of the line, or NULL if we are at or past
    the end of the file.