xnu-7195.81.3.tar.gz

[apple/xnu.git] / bsd / kern / tty_conf.c

diff --git a/bsd/kern/tty_conf.c b/bsd/kern/tty_conf.c
index 5bf3647b194b12b5f859c6a34bada45a1e083e97..51ddadd8cc82c013092038bf182991e1ed7f0b72 100644 (file)
--- a/bsd/kern/tty_conf.c
+++ b/bsd/kern/tty_conf.c
@@ -1,25 +1,30 @@
 /*
 /*

- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1997-2006 Apple Computer, Inc. All rights reserved.

  *
  *

- * @APPLE_LICENSE_HEADER_START@
- * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER

  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,

- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@

  */
  */

-/* Copyright (c) 1997 Apple Computer, Inc. All Rights Reserved */

 /*-
  * Copyright (c) 1982, 1986, 1991, 1993
  *      The Regents of the University of California.  All rights reserved.
 /*-
  * Copyright (c) 1982, 1986, 1991, 1993
  *      The Regents of the University of California.  All rights reserved.


@@ -69,20 +74,14 @@
 #define MAXLDISC 8
 #endif
 
 #define MAXLDISC 8
 #endif
 

-#ifndef NeXT
-static l_open_t                l_noopen;
-static l_close_t       l_noclose;
-static l_rint_t                l_norint;
-#else /* NeXT */
-#define        l_noopen        ((l_open_t *)  &enodev)
-#define        l_noclose       ((l_close_t *) &enodev)
-#define        l_noread        ((l_read_t *)  &enodev)
-#define        l_nowrite       ((l_write_t *) &enodev)
-#define        l_norint        ((l_rint_t *)  &enodev)
-#endif /* !NeXT */
+#define l_noopen        ((l_open_t *)  &enodev)
+#define l_noclose       ((l_close_t *) &enodev)
+#define l_noread        ((l_read_t *)  &enodev)
+#define l_nowrite       ((l_write_t *) &enodev)
+#define l_norint        ((l_rint_t *)  &enodev)

 
 

-static l_ioctl_t       l_noioctl;
-static l_start_t       l_nostart;
+static l_ioctl_t        l_noioctl;
+static l_start_t        l_nostart;

 
 /*
  * XXX it probably doesn't matter what the entries other than the l_open
 
 /*
  * XXX it probably doesn't matter what the entries other than the l_open


@@ -94,27 +93,23 @@ static l_start_t    l_nostart;
        { l_noopen,     l_noclose,      l_noread,       l_nowrite, \
          l_noioctl,    l_norint,       l_nostart,      ttymodem }
 
        { l_noopen,     l_noclose,      l_noread,       l_nowrite, \
          l_noioctl,    l_norint,       l_nostart,      ttymodem }
 

-struct linesw linesw[MAXLDISC] =
+struct  linesw linesw[MAXLDISC] =

 {
 {

-                               /* 0- termios */
-       { ttyopen,      ttylclose,      ttread,         ttwrite,
-         l_noioctl,    ttyinput,       ttwwakeup,      ttymodem },
-       NODISC(1),              /* 1- defunct */
-                               /* 2- NTTYDISC */
-#if COMPAT_43_TTY
-       { ttyopen,      ttylclose,      ttread,         ttwrite,
-         l_noioctl,    ttyinput,       ttwwakeup,      ttymodem },
-#else
-       NODISC(2),
-#endif
-       NODISC(3),              /* TABLDISC */
-       NODISC(4),              /* SLIPDISC */
-       NODISC(5),              /* PPPDISC */
-       NODISC(6),              /* loadable */
-       NODISC(7),              /* loadable */
+       /* 0- termios */
+       { ttyopen, ttylclose, ttread, ttwrite,
+         l_noioctl, ttyinput, ttwwakeup, ttymodem },
+       NODISC(1),              /* 1- defunct */
+                               /* 2- NTTYDISC */
+       { ttyopen, ttylclose, ttread, ttwrite,
+         l_noioctl, ttyinput, ttwwakeup, ttymodem },
+       NODISC(3),              /* TABLDISC */
+       NODISC(4),              /* SLIPDISC */
+       NODISC(5),              /* PPPDISC */
+       NODISC(6),              /* loadable */
+       NODISC(7),              /* loadable */

 };
 
 };
 

-int    nlinesw = sizeof (linesw) / sizeof (linesw[0]);
+const int nlinesw = sizeof(linesw) / sizeof(linesw[0]);

 
 static struct linesw nodisc = NODISC(0);
 
 
 static struct linesw nodisc = NODISC(0);
 


@@ -128,25 +123,24 @@ static struct linesw nodisc = NODISC(0);
  * Returns: Index used or -1 on failure.
  */
 int
  * Returns: Index used or -1 on failure.
  */
 int

-ldisc_register(discipline, linesw_p)
-       int discipline;
-       struct linesw *linesw_p;
+ldisc_register(int discipline, struct linesw *linesw_p)

 {
        int slot = -1;
 
        if (discipline == LDISC_LOAD) {
                int i;
 {
        int slot = -1;
 
        if (discipline == LDISC_LOAD) {
                int i;

-               for (i = LOADABLE_LDISC; i < MAXLDISC; i++)
+               for (i = LOADABLE_LDISC; i < MAXLDISC; i++) {

                        if (bcmp(linesw + i, &nodisc, sizeof(nodisc)) == 0) {
                                slot = i;
                        }
                        if (bcmp(linesw + i, &nodisc, sizeof(nodisc)) == 0) {
                                slot = i;
                        }

-       }
-       else if (discipline >= 0 && discipline < MAXLDISC) {
+               }
+       } else if (discipline >= 0 && discipline < MAXLDISC) {

                slot = discipline;
        }
 
                slot = discipline;
        }
 

-       if (slot != -1 && linesw_p)
+       if (slot != -1 && linesw_p) {

                linesw[slot] = *linesw_p;
                linesw[slot] = *linesw_p;

+       }

 
        return slot;
 }
 
        return slot;
 }


@@ -158,75 +152,25 @@ ldisc_register(discipline, linesw_p)
  * discipline: Index for discipline to unload.
  */
 void
  * discipline: Index for discipline to unload.
  */
 void

-ldisc_deregister(discipline)
-       int discipline;
+ldisc_deregister(int discipline)

 {
        if (discipline >= LOADABLE_LDISC && discipline < MAXLDISC) {
                linesw[discipline] = nodisc;
        }
 }
 
 {
        if (discipline >= LOADABLE_LDISC && discipline < MAXLDISC) {
                linesw[discipline] = nodisc;
        }
 }
 

-#ifndef NeXT
-static int
-l_noopen(dev, tp)
-       dev_t dev;
-       struct tty *tp;
-{
-
-       return (ENODEV);
-}
-
-static int
-l_noclose(tp, flag)
-       struct tty *tp;
-       int flag;
-{
-
-       return (ENODEV);
-}
-
-int
-l_noread(tp, uio, flag)
-       struct tty *tp;
-       struct uio *uio;
-       int flag;
-{
-
-       return (ENODEV);
-}
-
-int
-l_nowrite(tp, uio, flag)
-       struct tty *tp;
-       struct uio *uio;
-       int flag;
-{
-
-       return (ENODEV);
-}
-
-static int
-l_norint(c, tp)
-       int c;
-       struct tty *tp;
-{
-
-       return (ENODEV);
-}
-#endif /* !NeXT */
-

 /*
  * Do nothing specific version of line
  * discipline specific ioctl command.
  */
 static int
 l_noioctl(__unused struct tty *tp, __unused u_long cmd, __unused caddr_t data,
 /*
  * Do nothing specific version of line
  * discipline specific ioctl command.
  */
 static int
 l_noioctl(__unused struct tty *tp, __unused u_long cmd, __unused caddr_t data,

-         __unused int flags, __unused struct proc *p)
+    __unused int flags, __unused struct proc *p)

 {
 {

-

        return ENOTTY;
 }
 
 static void
 l_nostart(__unused struct tty *tp)
        return ENOTTY;
 }
 
 static void
 l_nostart(__unused struct tty *tp)

-    { }
+{
+}