about summary refs log tree commit diff
path: root/REORG.TODO/hurd/hurd/ioctl.h
diff options
context:
space:
mode:
Diffstat (limited to 'REORG.TODO/hurd/hurd/ioctl.h')
-rw-r--r--REORG.TODO/hurd/hurd/ioctl.h81
1 files changed, 81 insertions, 0 deletions
diff --git a/REORG.TODO/hurd/hurd/ioctl.h b/REORG.TODO/hurd/hurd/ioctl.h
new file mode 100644
index 0000000000..0423b8cb9f
--- /dev/null
+++ b/REORG.TODO/hurd/hurd/ioctl.h
@@ -0,0 +1,81 @@
+/* User-registered handlers for specific `ioctl' requests.
+   Copyright (C) 1993-2017 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/>.  */
+
+#ifndef	_HURD_IOCTL_H
+#define	_HURD_IOCTL_H	1
+
+#define	__need___va_list
+#include <stdarg.h>
+#include <bits/ioctls.h>
+
+
+/* Type of handler function, called like ioctl to do its entire job.  */
+typedef int (*ioctl_handler_t) (int fd, int request, void *arg);
+
+/* Structure that records an ioctl handler.  */
+struct ioctl_handler
+  {
+    /* Range of handled _IOC_NOTYPE (REQUEST) values.  */
+    int first_request, last_request;
+
+    /* Handler function, called like ioctl to do its entire job.  */
+    ioctl_handler_t handler;
+
+    struct ioctl_handler *next;	/* Next handler.  */
+  };
+
+
+/* Register HANDLER to handle ioctls with REQUEST values between
+   FIRST_REQUEST and LAST_REQUEST inclusive.  Returns zero if successful.
+   Return nonzero and sets `errno' for an error.  */
+
+extern int hurd_register_ioctl_handler (int first_request, int last_request,
+					ioctl_handler_t handler);
+
+
+/* Define a library-internal handler for ioctl commands between FIRST and
+   LAST inclusive.  The last element gratuitously references HANDLER to
+   avoid `defined but not used' warnings.  */
+
+#define	_HURD_HANDLE_IOCTLS_1(handler, first, last, moniker)		      \
+  static const struct ioctl_handler handler##_ioctl_handler##moniker	      \
+	__attribute__ ((__unused__)) =					      \
+    { _IOC_NOTYPE (first), _IOC_NOTYPE (last),				      \
+	(ioctl_handler_t) (handler), NULL };				      \
+  text_set_element (_hurd_ioctl_handler_lists,				      \
+                    handler##_ioctl_handler##moniker)
+#define	_HURD_HANDLE_IOCTLS(handler, first, last)			      \
+  _HURD_HANDLE_IOCTLS_1 (handler, first, last, first##_to_##last)
+
+/* Define a library-internal handler for a single ioctl command.  */
+
+#define _HURD_HANDLE_IOCTL(handler, ioctl) \
+  _HURD_HANDLE_IOCTLS_1 (handler, ioctl, ioctl, ioctl##_only)
+
+
+/* Install a new CTTYID port, atomically updating the dtable appropriately.
+   This consumes the send right passed in.  */
+
+void _hurd_locked_install_cttyid (mach_port_t cttyid);
+
+/* Lookup the handler for the given ioctl request.  */
+
+ioctl_handler_t _hurd_lookup_ioctl_handler (int request);
+
+
+#endif	/* hurd/ioctl.h */