Merge branch 'elf-move'

[platform/upstream/glibc.git] / hurd / hurdioctl.c

diff --git a/hurd/hurdioctl.c b/hurd/hurdioctl.c
index c4cb679..a68e6df 100644 (file)
--- a/hurd/hurdioctl.c
+++ b/hurd/hurdioctl.c
@@ -1,27 +1,27 @@
 /* ioctl commands which must be done in the C library.
-   Copyright (C) 1994,95,96,97,99,2001 Free Software Foundation, Inc.
+   Copyright (C) 1994,95,96,97,99,2001,2002,2009,2010
+       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 Library General Public License as
-   published by the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
+   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
-   Library General Public License for more details.
+   Lesser General Public License for more details.
 
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If not,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   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
@@ -169,33 +169,28 @@ _hurd_locked_install_cttyid (mach_port_t cttyid)
   for (i = 0; i < _hurd_dtablesize; ++i)
     {
       struct hurd_fd *const d = _hurd_dtable[i];
-      mach_port_t newctty;
+      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 now have no controlling tty at all.  */
-       newctty = MACH_PORT_NULL;
-      else
+      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?  */
+                             if (id == cttyid /* Is it ours?  */
                                  /* Get the ctty io port.  */
-                                 __term_open_ctty (port,
-                                                   _hurd_pid, _hurd_pgrp,
-                                                   &newctty))
+                                 && __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 (), (mach_port_t) id);
+                             __mach_port_deallocate (__mach_task_self (), id);
                            }
-                         else
-                           newctty = MACH_PORT_NULL;
                          0;
                        }));
 
@@ -243,34 +238,40 @@ _hurd_setcttyid (mach_port_t cttyid)
 }
 
 
-/* Make FD be the controlling terminal.
-   This function is called for `ioctl (fd, TCIOSCTTY)'.  */
-
-static int
-tiocsctty (int fd,
-          int request)         /* Always TIOCSCTTY.  */
+static inline error_t
+do_tiocsctty (io_t port, io_t ctty)
 {
   mach_port_t cttyid;
   error_t err;
 
-  /* Get FD's cttyid port, unless it is already ours.  */
-  err = HURD_DPORT_USE (fd, ctty != MACH_PORT_NULL ? EADDRINUSE :
-                       __term_getctty (port, &cttyid));
-  if (err == EADDRINUSE)
-    /* FD is already the ctty.  Nothing to do.  */
+  if (ctty != MACH_PORT_NULL)
+    /* PORT is already the ctty.  Nothing to do.  */
     return 0;
-  else if (err)
-    return __hurd_fail (err);
+
+  /* Get PORT's cttyid port.  */
+  err = __term_getctty (port, &cttyid);
+  if (err)
+    return err;
 
   /* Change the terminal's pgrp to ours.  */
-  err = HURD_DPORT_USE (fd, __tioctl_tiocspgrp (port, _hurd_pgrp));
+  err = __tioctl_tiocspgrp (port, _hurd_pgrp);
   if (err)
-    return __hurd_fail (err);
+    __mach_port_deallocate (__mach_task_self (), cttyid);
+  else
+    /* Make it our own.  */
+    install_ctty (cttyid);
 
-  /* Make it our own.  */
-  install_ctty (cttyid);
+  return err;
+}
 
-  return 0;
+/* 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);
 
@@ -311,7 +312,7 @@ static int
 siocgifconf (int fd, int request, struct ifconf *ifc)
 {
   error_t err;
-  int data_len = ifc->ifc_len;
+  size_t data_len = ifc->ifc_len;
   char *data = ifc->ifc_buf;
 
   if (data_len <= 0)