Seek:

Files:
    f_xxx.c      - Fortran API Routines
                      f_isreg.c f_lseek.c f_lseek8.c f_fflush.c
    c_xxx.c      - "C" API Routines
                      c_isreg.c c_lseek.c c_lseek8.c c_fflush.c   
    seektype.c   - Seek within binary data (non-sliced)
    seekset.c    - Seek set within binary data (non-sliced)
    seekcur.c    - Seek from current within binary data (non-sliced)
    seekend.c    - Seek from end within binary data (non-sliced)
    seekslice.c  - Seek within sliced binary data (called by cdds_lseek8)
    seekheader.c - line header seek within binary data (called by cdds_lseek8)
                   (BUT this is not allowed)
    edittrace.c  - edit binary trace data, for read or write.  This is done to
                   pad in dead traces or drop unwanted traces.  It also 
                   synchronizes sort indexing when necessary.
    editfinal.c  - edit final binary trace data for read (called by ddsReadCheck)