blob: 62f46931bd271340d72699558007244f044b876d [file] [log] [blame]
/* Implementation of the CHDIR intrinsic.
Copyright (C) 2005, 2007, 2009 Free Software Foundation, Inc.
Contributed by Fran├žois-Xavier Coudert <coudert@clipper.ens.fr>
This file is part of the GNU Fortran 95 runtime library (libgfortran).
Libgfortran is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
Libgfortran is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#include "libgfortran.h"
#include <errno.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
/* SUBROUTINE CHDIR(DIR, STATUS)
CHARACTER(len=*), INTENT(IN) :: DIR
INTEGER, INTENT(OUT), OPTIONAL :: STATUS */
#ifdef HAVE_CHDIR
extern void chdir_i4_sub (char *, GFC_INTEGER_4 *, gfc_charlen_type);
iexport_proto(chdir_i4_sub);
void
chdir_i4_sub (char *dir, GFC_INTEGER_4 *status, gfc_charlen_type dir_len)
{
int val;
char *str;
/* Trim trailing spaces from paths. */
while (dir_len > 0 && dir[dir_len - 1] == ' ')
dir_len--;
/* Make a null terminated copy of the strings. */
str = gfc_alloca (dir_len + 1);
memcpy (str, dir, dir_len);
str[dir_len] = '\0';
val = chdir (str);
if (status != NULL)
*status = (val == 0) ? 0 : errno;
}
iexport(chdir_i4_sub);
extern void chdir_i8_sub (char *, GFC_INTEGER_8 *, gfc_charlen_type);
iexport_proto(chdir_i8_sub);
void
chdir_i8_sub (char *dir, GFC_INTEGER_8 *status, gfc_charlen_type dir_len)
{
int val;
char *str;
/* Trim trailing spaces from paths. */
while (dir_len > 0 && dir[dir_len - 1] == ' ')
dir_len--;
/* Make a null terminated copy of the strings. */
str = gfc_alloca (dir_len + 1);
memcpy (str, dir, dir_len);
str[dir_len] = '\0';
val = chdir (str);
if (status != NULL)
*status = (val == 0) ? 0 : errno;
}
iexport(chdir_i8_sub);
extern GFC_INTEGER_4 chdir_i4 (char *, gfc_charlen_type);
export_proto(chdir_i4);
GFC_INTEGER_4
chdir_i4 (char *dir, gfc_charlen_type dir_len)
{
GFC_INTEGER_4 val;
chdir_i4_sub (dir, &val, dir_len);
return val;
}
extern GFC_INTEGER_8 chdir_i8 (char *, gfc_charlen_type);
export_proto(chdir_i8);
GFC_INTEGER_8
chdir_i8 (char *dir, gfc_charlen_type dir_len)
{
GFC_INTEGER_8 val;
chdir_i8_sub (dir, &val, dir_len);
return val;
}
#endif