1 files changed, 55 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/posix/sigintr.c b/REORG.TODO/sysdeps/posix/sigintr.c
new file mode 100644
index 0000000000..a6202de6a9
--- /dev/null
+++ b/REORG.TODO/sysdeps/posix/sigintr.c
@@ -0,0 +1,55 @@
+/* Copyright (C) 1992-2017 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 <stddef.h>
+#include <signal.h>
+#include <errno.h>
+#include <sigsetops.h>
+
+/* If INTERRUPT is nonzero, make signal SIG interrupt system calls
+   (causing them to fail with EINTR); if INTERRUPT is zero, make system
+   calls be restarted after signal SIG.  */
+int
+siginterrupt (int sig, int interrupt)
+{
+#ifdef	SA_RESTART
+  extern sigset_t _sigintr attribute_hidden;	/* Defined in signal.c.  */
+  struct sigaction action;
+
+  if (__sigaction (sig, (struct sigaction *) NULL, &action) < 0)
+    return -1;
+
+  if (interrupt)
+    {
+      __sigaddset (&_sigintr, sig);
+      action.sa_flags &= ~SA_RESTART;
+    }
+  else
+    {
+      __sigdelset (&_sigintr, sig);
+      action.sa_flags |= SA_RESTART;
+    }
+
+  if (__sigaction (sig, &action, (struct sigaction *) NULL) < 0)
+    return -1;
+
+  return 0;
+#else
+  __set_errno (ENOSYS);
+  return -1;
+#endif
+}