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-rw-r--r--dlfcn/dlopen.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/dlfcn/dlopen.c b/dlfcn/dlopen.c
index 1e2111e71f..bffb512aa3 100644
--- a/dlfcn/dlopen.c
+++ b/dlfcn/dlopen.c
@@ -1,5 +1,5 @@
 /* Load a shared object at run time.
-   Copyright (C) 1995,96,97,98,99,2000,2003,2004 Free Software Foundation, Inc.
+   Copyright (C) 1995-2000,2003,2004,2005 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
@@ -18,6 +18,7 @@
    02111-1307 USA.  */
 
 #include <dlfcn.h>
+#include <libintl.h>
 #include <stddef.h>
 #include <unistd.h>
 #include <ldsodefs.h>
@@ -58,6 +59,10 @@ dlopen_doit (void *a)
 {
   struct dlopen_args *args = (struct dlopen_args *) a;
 
+  if (args->mode & ~(RTLD_BINDING_MASK | RTLD_NOLOAD | RTLD_DEEPBIND
+		     | RTLD_GLOBAL | RTLD_LOCAL | RTLD_NODELETE))
+    GLRO(dl_signal_error) (0, NULL, NULL, _("invalid mode parameter"));
+
   args->new = GLRO(dl_open) (args->file ?: "", args->mode | __RTLD_DLOPEN,
 			     args->caller,
 			     args->file == NULL ? LM_ID_BASE : NS,