1 files changed, 32 insertions, 0 deletions
diff --git a/signal/sigaddset.c b/signal/sigaddset.c
new file mode 100644
index 0000000000..b9ac34dd5b
--- /dev/null
+++ b/signal/sigaddset.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 1991 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 Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include "sigsetops.h"
+
+/* Add SIGNO to SET.  */
+int
+DEFUN(sigaddset, (set, signo), sigset_t *set AND int signo)
+{
+  if (set == NULL || signo <= 0 || signo >= NSIG)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  return __sigaddset (set, signo);
+}