129 lines
3.4 KiB
C
129 lines
3.4 KiB
C
/* Implementation of the CHMOD intrinsic.
|
|
Copyright (C) 2006 Free Software Foundation, Inc.
|
|
Contributed by François-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 2 of the License, or (at your option) any later version.
|
|
|
|
In addition to the permissions in the GNU General Public License, the
|
|
Free Software Foundation gives you unlimited permission to link the
|
|
compiled version of this file into combinations with other programs,
|
|
and to distribute those combinations without any restriction coming
|
|
from the use of this file. (The General Public License restrictions
|
|
do apply in other respects; for example, they cover modification of
|
|
the file, and distribution when not linked into a combine
|
|
executable.)
|
|
|
|
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.
|
|
|
|
You should have received a copy of the GNU General Public
|
|
License along with libgfortran; see the file COPYING. If not,
|
|
write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
Boston, MA 02110-1301, USA. */
|
|
|
|
#include "config.h"
|
|
#include "libgfortran.h"
|
|
|
|
#include <errno.h>
|
|
|
|
#ifdef HAVE_STRING_H
|
|
#include <string.h>
|
|
#endif
|
|
#ifdef HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
#ifdef HAVE_SYS_WAIT_H
|
|
#include <sys/wait.h>
|
|
#endif
|
|
|
|
/* INTEGER FUNCTION ACCESS(NAME, MODE)
|
|
CHARACTER(len=*), INTENT(IN) :: NAME, MODE */
|
|
|
|
#if defined(HAVE_FORK) && defined(HAVE_EXECL) && defined(HAVE_WAIT)
|
|
|
|
extern int chmod_func (char *, char *, gfc_charlen_type, gfc_charlen_type);
|
|
export_proto(chmod_func);
|
|
|
|
int
|
|
chmod_func (char *name, char *mode, gfc_charlen_type name_len,
|
|
gfc_charlen_type mode_len)
|
|
{
|
|
char * file, * m;
|
|
pid_t pid;
|
|
int status;
|
|
|
|
/* Trim trailing spaces. */
|
|
while (name_len > 0 && name[name_len - 1] == ' ')
|
|
name_len--;
|
|
while (mode_len > 0 && mode[mode_len - 1] == ' ')
|
|
mode_len--;
|
|
|
|
/* Make a null terminated copy of the strings. */
|
|
file = gfc_alloca (name_len + 1);
|
|
memcpy (file, name, name_len);
|
|
file[name_len] = '\0';
|
|
|
|
m = gfc_alloca (mode_len + 1);
|
|
memcpy (m, mode, mode_len);
|
|
m[mode_len]= '\0';
|
|
|
|
/* Execute /bin/chmod. */
|
|
if ((pid = fork()) < 0)
|
|
return errno;
|
|
if (pid == 0)
|
|
{
|
|
/* Child process. */
|
|
execl ("/bin/chmod", "chmod", m, file, (char *) NULL);
|
|
return errno;
|
|
}
|
|
else
|
|
wait (&status);
|
|
|
|
if (WIFEXITED(status))
|
|
return WEXITSTATUS(status);
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
|
|
|
|
extern void chmod_i4_sub (char *, char *, GFC_INTEGER_4 *,
|
|
gfc_charlen_type, gfc_charlen_type);
|
|
export_proto(chmod_i4_sub);
|
|
|
|
void
|
|
chmod_i4_sub (char *name, char *mode, GFC_INTEGER_4 * status,
|
|
gfc_charlen_type name_len, gfc_charlen_type mode_len)
|
|
{
|
|
int val;
|
|
|
|
val = chmod_func (name, mode, name_len, mode_len);
|
|
if (status)
|
|
*status = val;
|
|
}
|
|
|
|
|
|
extern void chmod_i8_sub (char *, char *, GFC_INTEGER_8 *,
|
|
gfc_charlen_type, gfc_charlen_type);
|
|
export_proto(chmod_i8_sub);
|
|
|
|
void
|
|
chmod_i8_sub (char *name, char *mode, GFC_INTEGER_8 * status,
|
|
gfc_charlen_type name_len, gfc_charlen_type mode_len)
|
|
{
|
|
int val;
|
|
|
|
val = chmod_func (name, mode, name_len, mode_len);
|
|
if (status)
|
|
*status = val;
|
|
}
|
|
|
|
#endif
|