      INTEGER FUNCTION AKCESS (FIL, BUFFER)
C-----------------------------------------------------------------------
C! *TESS routine to read or write files
C# IO-util
C-----------------------------------------------------------------------
C;  Copyright (C) 1995
C;  Associated Universities, Inc. Washington DC, USA.
C;
C;  This program is free software; you can redistribute it and/or
C;  modify it under the terms of the GNU General Public License as
C;  published by the Free Software Foundation; either version 2 of
C;  the License, or (at your option) any later version.
C;
C;  This program is distributed in the hope that it will be useful,
C;  but WITHOUT ANY WARRANTY; without even the implied warranty of
C;  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
C;  GNU General Public License for more details.
C;
C;  You should have received a copy of the GNU General Public
C;  License along with this program; if not, write to the Free
C;  Software Foundation, Inc., 675 Massachusetts Ave, Cambridge,
C;  MA 02139, USA.
C;
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C;         Internet email: aipsmail@nrao.edu.
C;         Postal address: AIPS Project Office
C;                         National Radio Astronomy Observatory
C;                         520 Edgemont Road
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C-----------------------------------------------------------------------
C-----------------------------------------------------------------------
C   AKCESS accesses (reads from or writes to) a scratch file using MDISK
C   Programmer =  T.J. Cornwell      December 1987
C-----------------------------------------------------------------------
      INTEGER   FIL, LUN, IARG, IERR
      REAL      BUFFER(*)
      INCLUDE 'INCS:DMSG.INC'
      INCLUDE 'INCS:DTCIO.INC'
      INCLUDE 'INCS:DFIL.INC'
C-----------------------------------------------------------------------
      LUN = BUFNUM(FIL) + 15
      IARG = BUFNUM(FIL)
      AKCESS = 0
      CALL MDISK (ACCTYP(FIL), LUN, FIND(IARG), BUFFER,
     *   BIND(IARG), IERR)
      IF (IERR.EQ.0) GO TO 999
         WRITE (MSGTXT,1000) IERR, FIL
         CALL MSGWRT (8)
         AKCESS = IERR
C
 999  RETURN
C-----------------------------------------------------------------------
 1000 FORMAT ('ERROR ',I3,' ACCESSING FILE ',I2,' IN AKCESS ROUTINE:')
      END
