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authorJing Yu <jingyu@google.com>2009-11-05 15:11:04 -0800
committerJing Yu <jingyu@google.com>2009-11-05 15:11:04 -0800
commitdf62c1c110e8532b995b23540b7e3695729c0779 (patch)
treedbbd4cbdb50ac38011e058a2533ee4c3168b0205 /gcc-4.2.1/libgfortran/intrinsics/chmod.c
parent8d401cf711539af5a2f78d12447341d774892618 (diff)
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Check in gcc sources for prebuilt toolchains in Eclair.
Diffstat (limited to 'gcc-4.2.1/libgfortran/intrinsics/chmod.c')
-rw-r--r--gcc-4.2.1/libgfortran/intrinsics/chmod.c131
1 files changed, 131 insertions, 0 deletions
diff --git a/gcc-4.2.1/libgfortran/intrinsics/chmod.c b/gcc-4.2.1/libgfortran/intrinsics/chmod.c
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+/* 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_TYPES_H
+#include <sys/types.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