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-rw-r--r--hurd/hurdioctl.c331
1 files changed, 0 insertions, 331 deletions
diff --git a/hurd/hurdioctl.c b/hurd/hurdioctl.c
deleted file mode 100644
index 73ec3ea3cc..0000000000
--- a/hurd/hurdioctl.c
+++ /dev/null
@@ -1,331 +0,0 @@
-/* ioctl commands which must be done in the C library.
- Copyright (C) 1994-2017 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 <hurd.h>
-#include <hurd/fd.h>
-#include <sys/ioctl.h>
-#include <hurd/ioctl.h>
-#include <string.h>
-
-
-/* Symbol set of ioctl handler lists. If there are user-registered
- handlers, one of these lists will contain them. The other lists are
- handlers built into the library. */
-symbol_set_define (_hurd_ioctl_handler_lists)
-
-/* Look up REQUEST in the set of handlers. */
-ioctl_handler_t
-_hurd_lookup_ioctl_handler (int request)
-{
- void *const *ptr;
- const struct ioctl_handler *h;
-
- /* Mask off the type bits, so that we see requests in a single group as a
- contiguous block of values. */
- request = _IOC_NOTYPE (request);
-
- for (ptr = symbol_set_first_element (_hurd_ioctl_handler_lists);
- !symbol_set_end_p (_hurd_ioctl_handler_lists, ptr);
- ++ptr)
- for (h = *ptr; h != NULL; h = h->next)
- if (request >= h->first_request && request <= h->last_request)
- return h->handler;
-
- return NULL;
-}
-
-#include <fcntl.h>
-
-/* Find out how many bytes may be read from FD without blocking. */
-
-static int
-fioctl (int fd,
- int request,
- int *arg)
-{
- error_t err;
-
- *(volatile int *) arg = *arg;
-
- switch (request)
- {
- default:
- err = ENOTTY;
- break;
-
- case FIONREAD:
- {
- mach_msg_type_number_t navail;
- err = HURD_DPORT_USE (fd, __io_readable (port, &navail));
- if (!err)
- *arg = (int) navail;
- }
- break;
-
- case FIONBIO:
- err = HURD_DPORT_USE (fd, (*arg ?
- __io_set_some_openmodes :
- __io_clear_some_openmodes)
- (port, O_NONBLOCK));
- break;
-
- case FIOASYNC:
- err = HURD_DPORT_USE (fd, (*arg ?
- __io_set_some_openmodes :
- __io_clear_some_openmodes)
- (port, O_ASYNC));
- break;
-
- case FIOSETOWN:
- err = HURD_DPORT_USE (fd, __io_mod_owner (port, *arg));
- break;
-
- case FIOGETOWN:
- err = HURD_DPORT_USE (fd, __io_get_owner (port, arg));
- break;
- }
-
- return err ? __hurd_dfail (fd, err) : 0;
-}
-
-_HURD_HANDLE_IOCTLS (fioctl, FIOGETOWN, FIONREAD);
-
-
-static int
-fioclex (int fd,
- int request)
-{
- int flag;
-
- switch (request)
- {
- default:
- return __hurd_fail (ENOTTY);
- case FIOCLEX:
- flag = FD_CLOEXEC;
- break;
- case FIONCLEX:
- flag = 0;
- break;
- }
-
- return __fcntl (fd, F_SETFD, flag);
-}
-_HURD_HANDLE_IOCTLS (fioclex, FIOCLEX, FIONCLEX);
-
-#include <hurd/term.h>
-#include <hurd/tioctl.h>
-
-/* 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)
-{
- mach_port_t old;
- struct hurd_port *const port = &_hurd_ports[INIT_PORT_CTTYID];
- struct hurd_userlink ulink;
- int i;
-
- /* Install the new cttyid port, and preserve it with a ulink.
- We unroll the _hurd_port_set + _hurd_port_get here so that
- there is no window where the cell is unlocked and CTTYID could
- be changed by another thread. (We also delay the deallocation
- of the old port until the end, to minimize the duration of the
- critical section.)
-
- It is important that changing the cttyid port is only ever done by
- holding the dtable lock continuously while updating the port cell and
- re-ctty'ing the dtable; dtable.c assumes we do this. Otherwise, the
- pgrp-change notification code in dtable.c has to worry about racing
- against us here in odd situations. The one exception to this is
- setsid, which holds the dtable lock while changing the pgrp and
- clearing the cttyid port, and then unlocks the dtable lock to allow
-
-
- */
-
- __spin_lock (&port->lock);
- old = _hurd_userlink_clear (&port->users) ? port->port : MACH_PORT_NULL;
- port->port = cttyid;
- cttyid = _hurd_port_locked_get (port, &ulink);
-
- for (i = 0; i < _hurd_dtablesize; ++i)
- {
- struct hurd_fd *const d = _hurd_dtable[i];
- mach_port_t newctty = MACH_PORT_NULL;
-
- if (d == NULL)
- /* Nothing to do for an unused descriptor cell. */
- continue;
-
- if (cttyid != MACH_PORT_NULL)
- /* We do have some controlling tty. */
- HURD_PORT_USE (&d->port,
- ({ mach_port_t id;
- /* Get the io object's cttyid port. */
- if (! __term_getctty (port, &id))
- {
- if (id == cttyid /* Is it ours? */
- /* Get the ctty io port. */
- && __term_open_ctty (port,
- _hurd_pid, _hurd_pgrp,
- &newctty))
- /* XXX it is our ctty but the call failed? */
- newctty = MACH_PORT_NULL;
- __mach_port_deallocate (__mach_task_self (), id);
- }
- 0;
- }));
-
- /* Install the new ctty port. */
- _hurd_port_set (&d->ctty, newctty);
- }
-
- __mutex_unlock (&_hurd_dtable_lock);
-
- if (old != MACH_PORT_NULL)
- __mach_port_deallocate (__mach_task_self (), old);
- _hurd_port_free (port, &ulink, cttyid);
-}
-
-static void
-install_ctty (mach_port_t cttyid)
-{
- HURD_CRITICAL_BEGIN;
- __mutex_lock (&_hurd_dtable_lock);
- _hurd_locked_install_cttyid (cttyid);
- HURD_CRITICAL_END;
-}
-
-
-/* Called when we have received a message saying to use a new ctty ID port. */
-
-error_t
-_hurd_setcttyid (mach_port_t cttyid)
-{
- error_t err;
-
- if (cttyid != MACH_PORT_NULL)
- {
- /* Give the new send right a user reference.
- This is a good way to check that it is valid. */
- if (err = __mach_port_mod_refs (__mach_task_self (), cttyid,
- MACH_PORT_RIGHT_SEND, 1))
- return err;
- }
-
- /* Install the port, consuming the reference we just created. */
- install_ctty (cttyid);
-
- return 0;
-}
-
-
-static inline error_t
-do_tiocsctty (io_t port, io_t ctty)
-{
- mach_port_t cttyid;
- error_t err;
-
- if (ctty != MACH_PORT_NULL)
- /* PORT is already the ctty. Nothing to do. */
- return 0;
-
- /* Get PORT's cttyid port. */
- err = __term_getctty (port, &cttyid);
- if (err)
- return err;
-
- /* Change the terminal's pgrp to ours. */
- err = __tioctl_tiocspgrp (port, _hurd_pgrp);
- if (err)
- __mach_port_deallocate (__mach_task_self (), cttyid);
- else
- /* Make it our own. */
- install_ctty (cttyid);
-
- return err;
-}
-
-/* Make FD be the controlling terminal.
- This function is called for `ioctl (fd, TCIOSCTTY)'. */
-
-static int
-tiocsctty (int fd,
- int request) /* Always TIOCSCTTY. */
-{
- return __hurd_fail (HURD_DPORT_USE (fd, do_tiocsctty (port, ctty)));
-}
-_HURD_HANDLE_IOCTL (tiocsctty, TIOCSCTTY);
-
-/* Dissociate from the controlling terminal. */
-
-static int
-tiocnotty (int fd,
- int request) /* Always TIOCNOTTY. */
-{
- mach_port_t fd_cttyid;
- error_t err;
-
- if (err = HURD_DPORT_USE (fd, __term_getctty (port, &fd_cttyid)))
- return __hurd_fail (err);
-
- if (__USEPORT (CTTYID, port != fd_cttyid))
- err = EINVAL;
-
- __mach_port_deallocate (__mach_task_self (), fd_cttyid);
-
- if (err)
- return __hurd_fail (err);
-
- /* Clear our cttyid port. */
- install_ctty (MACH_PORT_NULL);
-
- return 0;
-}
-_HURD_HANDLE_IOCTL (tiocnotty, TIOCNOTTY);
-
-#include <hurd/pfinet.h>
-#include <net/if.h>
-#include <netinet/in.h>
-
-/* Fill in the buffer IFC->IFC_BUF of length IFC->IFC_LEN with a list
- of ifr structures, one for each network interface. */
-static int
-siocgifconf (int fd, int request, struct ifconf *ifc)
-{
- error_t err;
- size_t data_len = ifc->ifc_len;
- char *data = ifc->ifc_buf;
-
- if (data_len <= 0)
- return 0;
-
- err = HURD_DPORT_USE (fd, __pfinet_siocgifconf (port, ifc->ifc_len,
- &data, &data_len));
- if (data_len < ifc->ifc_len)
- ifc->ifc_len = data_len;
- if (data != ifc->ifc_buf)
- {
- memcpy (ifc->ifc_buf, data, ifc->ifc_len);
- __vm_deallocate (__mach_task_self (), (vm_address_t) data, data_len);
- }
- return err ? __hurd_dfail (fd, err) : 0;
-}
-_HURD_HANDLE_IOCTL (siocgifconf, SIOCGIFCONF);
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