Imported Upstream version 1.5

[debian/gzip] / lib / closedir.c

diff --git a/lib/closedir.c b/lib/closedir.c
new file mode 100644 (file)
index 0000000..df31e86
--- /dev/null
+++ b/lib/closedir.c
@@ -0,0 +1,67 @@
+/* Stop reading the entries of a directory.
+   Copyright (C) 2006-2012 Free Software Foundation, Inc.
+
+   This program 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.
+
+   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include <dirent.h>
+
+#if REPLACE_FCHDIR
+# include <unistd.h>
+#endif
+
+#if HAVE_CLOSEDIR
+
+/* Override closedir(), to keep track of the open file descriptors.
+   Needed because there is a function dirfd().  */
+
+#else
+
+# include <stdlib.h>
+
+# include "dirent-private.h"
+
+#endif
+
+int
+closedir (DIR *dirp)
+{
+# if REPLACE_FCHDIR
+  int fd = dirfd (dirp);
+# endif
+  int retval;
+
+#if HAVE_CLOSEDIR
+# undef closedir
+
+  retval = closedir (dirp);
+
+#else
+
+  if (dirp->current != INVALID_HANDLE_VALUE)
+    FindClose (dirp->current);
+  free (dirp);
+
+  retval = 0;
+
+#endif
+
+#if REPLACE_FCHDIR
+  if (retval >= 0)
+    _gl_unregister_fd (fd);
+#endif
+  return retval;
+}