libgfortran/intrinsics/umask.c

   1 /* Implementation of the UMASK intrinsic.
   2    Copyright (C) 2004-2016 Free Software Foundation, Inc.
   3    Contributed by Steven G. Kargl <kargls@comcast.net>.
   4
   5 This file is part of the GNU Fortran runtime library (libgfortran).
   6
   7 Libgfortran is free software; you can redistribute it and/or
   8 modify it under the terms of the GNU General Public
   9 License as published by the Free Software Foundation; either
  10 version 3 of the License, or (at your option) any later version.
  11
  12 Libgfortran is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 Under Section 7 of GPL version 3, you are granted additional
  18 permissions described in the GCC Runtime Library Exception, version
  19 3.1, as published by the Free Software Foundation.
  20
  21 You should have received a copy of the GNU General Public License and
  22 a copy of the GCC Runtime Library Exception along with this program;
  23 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  24 <http://www.gnu.org/licenses/>.  */
  25
  26
  27 #include "libgfortran.h"
  28 #include <stdlib.h>
  29
  30 #ifdef HAVE_SYS_STAT_H
  31 #include <sys/stat.h>
  32 #endif
  33
  34 #ifdef HAVE_UNISTD_H
  35 #include <unistd.h>
  36 #endif
  37
  38
  39 /* SUBROUTINE UMASK(MASK, OLD)
  40    INTEGER, INTENT(IN) :: MASK
  41    INTEGER, INTENT(OUT), OPTIONAL :: OLD  */
  42
  43 extern void umask_i4_sub (GFC_INTEGER_4 *, GFC_INTEGER_4 *);
  44 iexport_proto(umask_i4_sub);
  45
  46 void
  47 umask_i4_sub (GFC_INTEGER_4 *mask, GFC_INTEGER_4 *old)
  48 {
  49   mode_t val = umask((mode_t) *mask);
  50   if (old != NULL)
  51     *old = (GFC_INTEGER_4) val;
  52 }
  53 iexport(umask_i4_sub);
  54
  55 extern void umask_i8_sub (GFC_INTEGER_8 *, GFC_INTEGER_8 *);
  56 iexport_proto(umask_i8_sub);
  57
  58 void
  59 umask_i8_sub (GFC_INTEGER_8 *mask, GFC_INTEGER_8 *old)
  60 {
  61   mode_t val = umask((mode_t) *mask);
  62   if (old != NULL)
  63     *old = (GFC_INTEGER_8) val;
  64 }
  65 iexport(umask_i8_sub);
  66
  67 /* INTEGER FUNCTION UMASK(MASK)
  68    INTEGER, INTENT(IN) :: MASK  */
  69
  70 extern GFC_INTEGER_4 umask_i4 (GFC_INTEGER_4 *);
  71 export_proto(umask_i4);
  72
  73 GFC_INTEGER_4
  74 umask_i4 (GFC_INTEGER_4 *mask)
  75 {
  76   GFC_INTEGER_4 old;
  77   umask_i4_sub (mask, &old);
  78   return old;
  79 }
  80
  81 extern GFC_INTEGER_8 umask_i8 (GFC_INTEGER_8 *);
  82 export_proto(umask_i8);
  83
  84 GFC_INTEGER_8
  85 umask_i8 (GFC_INTEGER_8 *mask)
  86 {
  87   GFC_INTEGER_8 old;
  88   umask_i8_sub (mask, &old);
  89   return old;
  90 }