New upstream version 1.8

[debian/gzip] / lib / rmdir.c

diff --git a/lib/rmdir.c b/lib/rmdir.c
new file mode 100644 (file)
index 0000000..4949df2
--- /dev/null
+++ b/lib/rmdir.c
@@ -0,0 +1,53 @@
+/* Work around rmdir bugs.
+
+   Copyright (C) 1988, 1990, 1999, 2003-2006, 2009-2016 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>
+
+#include <unistd.h>
+
+#include <errno.h>
+#include <string.h>
+
+#include "dosname.h"
+
+#undef rmdir
+
+/* Remove directory DIR.
+   Return 0 if successful, -1 if not.  */
+
+int
+rpl_rmdir (char const *dir)
+{
+  /* Work around cygwin 1.5.x bug where rmdir("dir/./") succeeds.  */
+  size_t len = strlen (dir);
+  int result;
+  while (len && ISSLASH (dir[len - 1]))
+    len--;
+  if (len && dir[len - 1] == '.' && (1 == len || ISSLASH (dir[len - 2])))
+    {
+      errno = EINVAL;
+      return -1;
+    }
+  result = rmdir (dir);
+  /* Work around mingw bug, where rmdir("file/") fails with EINVAL
+     instead of ENOTDIR.  We've already filtered out trailing ., the
+     only reason allowed by POSIX for EINVAL.  */
+  if (result == -1 && errno == EINVAL)
+    errno = ENOTDIR;
+  return result;
+}