1 files changed, 102 insertions, 0 deletions
diff --git a/gcc-4.6/libgfortran/io/close.c b/gcc-4.6/libgfortran/io/close.c
new file mode 100644
index 000000000..1a4d7d16e
--- /dev/null
+++ b/gcc-4.6/libgfortran/io/close.c
@@ -0,0 +1,102 @@
+/* Copyright (C) 2002, 2003, 2005, 2007, 2009 Free Software Foundation, Inc.
+   Contributed by Andy Vaught
+
+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, 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 "io.h"
+#include "unix.h"
+#include <limits.h>
+
+typedef enum
+{ CLOSE_DELETE, CLOSE_KEEP, CLOSE_UNSPECIFIED }
+close_status;
+
+static const st_option status_opt[] = {
+  {"keep", CLOSE_KEEP},
+  {"delete", CLOSE_DELETE},
+  {NULL, 0}
+};
+
+
+extern void st_close (st_parameter_close *);
+export_proto(st_close);
+
+void
+st_close (st_parameter_close *clp)
+{
+  close_status status;
+  gfc_unit *u;
+#if !HAVE_UNLINK_OPEN_FILE
+  char * path;
+
+  path = NULL;
+#endif
+
+  library_start (&clp->common);
+
+  status = !(clp->common.flags & IOPARM_CLOSE_HAS_STATUS) ? CLOSE_UNSPECIFIED :
+    find_option (&clp->common, clp->status, clp->status_len,
+		 status_opt, "Bad STATUS parameter in CLOSE statement");
+
+  if ((clp->common.flags & IOPARM_LIBRETURN_MASK) != IOPARM_LIBRETURN_OK)
+  {
+    library_end ();
+    return;
+  }
+
+  u = find_unit (clp->common.unit);
+  if (u != NULL)
+    {
+      if (u->flags.status == STATUS_SCRATCH)
+	{
+	  if (status == CLOSE_KEEP)
+	    generate_error (&clp->common, LIBERROR_BAD_OPTION,
+			    "Can't KEEP a scratch file on CLOSE");
+#if !HAVE_UNLINK_OPEN_FILE
+	  path = (char *) gfc_alloca (u->file_len + 1);
+          unpack_filename (path, u->file, u->file_len);
+#endif
+	}
+      else
+	{
+	  if (status == CLOSE_DELETE)
+            {
+#if HAVE_UNLINK_OPEN_FILE
+	      delete_file (u);
+#else
+	      path = (char *) gfc_alloca (u->file_len + 1);
+              unpack_filename (path, u->file, u->file_len);
+#endif
+            }
+	}
+
+      close_unit (u);
+
+#if !HAVE_UNLINK_OPEN_FILE
+      if (path != NULL)
+        unlink (path);
+#endif
+    }
+
+  /* CLOSE on unconnected unit is legal and a no-op: F95 std., 9.3.5. */ 
+  library_end ();
+}