1 files changed, 63 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/generic/sigset-cvt-mask.h b/REORG.TODO/sysdeps/generic/sigset-cvt-mask.h
new file mode 100644
index 0000000000..b73bc64028
--- /dev/null
+++ b/REORG.TODO/sysdeps/generic/sigset-cvt-mask.h
@@ -0,0 +1,63 @@
+/* Convert between lowlevel sigmask and libc representation of sigset_t.
+   Generic version.
+   Copyright (C) 1998-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Joe Keane <jgk@jgk.org>.
+
+   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/>.  */
+
+/* Convert between an old-style 32-bit signal mask and a POSIX sigset_t.  */
+
+/* Perform *SET = MASK.  Unused bits of *SET are set to 0.
+   Returns zero for success or -1 for errors (from sigaddset/sigemptyset).  */
+static inline int __attribute__ ((unused))
+sigset_set_old_mask (sigset_t *set, int mask)
+{
+  if (sizeof (__sigset_t) == sizeof (unsigned int))
+    *set = (unsigned int) mask;
+  else
+    {
+      unsigned int __sig;
+
+      if (__sigemptyset (set) < 0)
+	return -1;
+
+      for (__sig = 1; __sig < NSIG && __sig <= sizeof (mask) * 8; __sig++)
+	if (mask & sigmask (__sig))
+	  if (__sigaddset (set, __sig) < 0)
+	    return -1;
+    }
+  return 0;
+}
+
+/* Return the sigmask corresponding to *SET.
+   Unused bits of *SET are thrown away.  */
+static inline int __attribute__ ((unused))
+sigset_get_old_mask (const sigset_t *set)
+{
+  if (sizeof (sigset_t) == sizeof (unsigned int))
+    return (unsigned int) *set;
+  else
+    {
+      unsigned int mask = 0;
+      unsigned int sig;
+
+      for (sig = 1; sig < NSIG && sig <= sizeof (mask) * 8; sig++)
+	if (__sigismember (set, sig))
+	  mask |= sigmask (sig);
+
+      return mask;
+    }
+}