1 files changed, 61 insertions, 0 deletions
diff --git a/lib/copy-acl.c b/lib/copy-acl.c
new file mode 100644
index 0000000..0eb4caf
--- /dev/null
+++ b/lib/copy-acl.c
@@ -0,0 +1,61 @@
+/* Copy access control list from one file to file.  -*- coding: utf-8 -*-
+
+   Copyright (C) 2002-2003, 2005-2020 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 <https://www.gnu.org/licenses/>.
+
+   Written by Paul Eggert, Andreas Grünbacher, and Bruno Haible.  */
+
+#include <config.h>
+
+#include "acl.h"
+
+#include <errno.h>
+
+#include "quote.h"
+#include "error.h"
+#include "gettext.h"
+#define _(msgid) gettext (msgid)
+
+
+/* Copy access control lists from one file to another. If SOURCE_DESC is
+   a valid file descriptor, use file descriptor operations, else use
+   filename based operations on SRC_NAME. Likewise for DEST_DESC and
+   DST_NAME.
+   If access control lists are not available, fchmod the target file to
+   MODE.  Also sets the non-permission bits of the destination file
+   (S_ISUID, S_ISGID, S_ISVTX) to those from MODE if any are set.
+   Return 0 if successful, otherwise output a diagnostic and return a
+   negative error code.  */
+
+int
+copy_acl (const char *src_name, int source_desc, const char *dst_name,
+          int dest_desc, mode_t mode)
+{
+  int ret = qcopy_acl (src_name, source_desc, dst_name, dest_desc, mode);
+  switch (ret)
+    {
+    case -2:
+      error (0, errno, "%s", quote (src_name));
+      break;
+
+    case -1:
+      error (0, errno, _("preserving permissions for %s"), quote (dst_name));
+      break;
+
+    default:
+      break;
+    }
+  return ret;
+}