1 files changed, 38 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/posix/sigblock.c b/REORG.TODO/sysdeps/posix/sigblock.c
new file mode 100644
index 0000000000..1f8686458b
--- /dev/null
+++ b/REORG.TODO/sysdeps/posix/sigblock.c
@@ -0,0 +1,38 @@
+/* Copyright (C) 1991-2017 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <signal.h>
+
+#include <sigset-cvt-mask.h>
+
+/* Block signals in MASK, returning the old mask.  */
+int
+__sigblock (int mask)
+{
+  sigset_t set, oset;
+
+  if (sigset_set_old_mask (&set, mask) < 0)
+    return -1;
+
+  if (__sigprocmask (SIG_BLOCK, &set, &oset) < 0)
+    return -1;
+
+  return sigset_get_old_mask (&oset);
+}
+
+weak_alias (__sigblock, sigblock)