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jeremybenn |
/* Implementation of the CHDIR intrinsic.
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Copyright (C) 2005, 2007, 2009 Free Software Foundation, Inc.
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Contributed by François-Xavier Coudert <coudert@clipper.ens.fr>
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This file is part of the GNU Fortran 95 runtime library (libgfortran).
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Libgfortran is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public
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License as published by the Free Software Foundation; either
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version 3 of the License, or (at your option) any later version.
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Libgfortran is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#include "libgfortran.h"
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#include <errno.h>
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#include <string.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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/* SUBROUTINE CHDIR(DIR, STATUS)
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CHARACTER(len=*), INTENT(IN) :: DIR
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INTEGER, INTENT(OUT), OPTIONAL :: STATUS */
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#ifdef HAVE_CHDIR
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extern void chdir_i4_sub (char *, GFC_INTEGER_4 *, gfc_charlen_type);
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iexport_proto(chdir_i4_sub);
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void
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chdir_i4_sub (char *dir, GFC_INTEGER_4 *status, gfc_charlen_type dir_len)
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{
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int val;
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char *str;
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/* Trim trailing spaces from paths. */
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while (dir_len > 0 && dir[dir_len - 1] == ' ')
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dir_len--;
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/* Make a null terminated copy of the strings. */
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str = gfc_alloca (dir_len + 1);
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memcpy (str, dir, dir_len);
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str[dir_len] = '\0';
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val = chdir (str);
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if (status != NULL)
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*status = (val == 0) ? 0 : errno;
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}
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iexport(chdir_i4_sub);
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extern void chdir_i8_sub (char *, GFC_INTEGER_8 *, gfc_charlen_type);
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iexport_proto(chdir_i8_sub);
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void
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chdir_i8_sub (char *dir, GFC_INTEGER_8 *status, gfc_charlen_type dir_len)
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{
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int val;
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char *str;
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/* Trim trailing spaces from paths. */
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while (dir_len > 0 && dir[dir_len - 1] == ' ')
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dir_len--;
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/* Make a null terminated copy of the strings. */
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str = gfc_alloca (dir_len + 1);
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memcpy (str, dir, dir_len);
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str[dir_len] = '\0';
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val = chdir (str);
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if (status != NULL)
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*status = (val == 0) ? 0 : errno;
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}
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iexport(chdir_i8_sub);
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extern GFC_INTEGER_4 chdir_i4 (char *, gfc_charlen_type);
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export_proto(chdir_i4);
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GFC_INTEGER_4
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chdir_i4 (char *dir, gfc_charlen_type dir_len)
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{
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GFC_INTEGER_4 val;
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chdir_i4_sub (dir, &val, dir_len);
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return val;
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}
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extern GFC_INTEGER_8 chdir_i8 (char *, gfc_charlen_type);
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export_proto(chdir_i8);
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GFC_INTEGER_8
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chdir_i8 (char *dir, gfc_charlen_type dir_len)
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{
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GFC_INTEGER_8 val;
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chdir_i8_sub (dir, &val, dir_len);
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return val;
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}
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#endif
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