1 files changed, 53 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/hurd/i386/ioperm.c b/REORG.TODO/sysdeps/mach/hurd/i386/ioperm.c
new file mode 100644
index 0000000000..c3dc1a3354
--- /dev/null
+++ b/REORG.TODO/sysdeps/mach/hurd/i386/ioperm.c
@@ -0,0 +1,53 @@
+/* Access to hardware i/o ports.  Hurd/x86 version.
+   Copyright (C) 2002-2017 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 <sys/io.h>
+#include <hurd.h>
+#include <mach/i386/mach_i386.h>
+
+int
+ioperm (unsigned long int from, unsigned long int num, int turn_on)
+{
+#if ! HAVE_I386_IO_PERM_MODIFY
+  return __hurd_fail (ENOSYS);
+#else
+  error_t err;
+  device_t devmaster;
+
+  /* With the device master port we get a capability that represents
+     this range of io ports.  */
+  err = __get_privileged_ports (NULL, &devmaster);
+  if (! err)
+    {
+      io_perm_t perm;
+      err = __i386_io_perm_create (devmaster, from, from + num - 1, &perm);
+      __mach_port_deallocate (__mach_task_self (), devmaster);
+      if (! err)
+	{
+	  /* Now we add or remove that set from our task's bitmap.  */
+	  err = __i386_io_perm_modify (__mach_task_self (), perm, turn_on);
+	  __mach_port_deallocate (__mach_task_self (), perm);
+	}
+
+      if (err == MIG_BAD_ID)	/* Old kernels don't have these RPCs.  */
+	err = ENOSYS;
+    }
+
+  return err ? __hurd_fail (err) : 0;
+#endif
+}