2.5-18.1

1 files changed, 37 insertions, 0 deletions

diff --git a/elf/enbl-secure.c b/elf/enbl-secure.c
new file mode 100644
index 0000000000..fac3b9c527
--- /dev/null
+++ b/elf/enbl-secure.c
@@ -0,0 +1,37 @@
+/* Define and initialize the `__libc_enable_secure' flag.  Generic version.
+   Copyright (C) 1996, 1997, 1998, 2000, 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* This file is used in the static libc.  For the shared library,
+   dl-sysdep.c defines and initializes __libc_enable_secure.  */
+
+#include <unistd.h>
+#include <libc-internal.h>
+
+/* If nonzero __libc_enable_secure is already set.  */
+int __libc_enable_secure_decided;
+/* Safest assumption, if somehow the initializer isn't run.  */
+int __libc_enable_secure = 1;
+
+void
+__libc_init_secure (void)
+{
+  if (__libc_enable_secure_decided == 0)
+    __libc_enable_secure = (__geteuid () != __getuid ()
+			    || __getegid () != __getgid ());
+}