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Annotation of Net2/kern/tty_conf.c, revision 1.1

1.1     ! root        1: /*-
        !             2:  * Copyright (c) 1982, 1986, 1991 The Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms, with or without
        !             6:  * modification, are permitted provided that the following conditions
        !             7:  * are met:
        !             8:  * 1. Redistributions of source code must retain the above copyright
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  * 3. All advertising materials mentioning features or use of this software
        !            14:  *    must display the following acknowledgement:
        !            15:  *     This product includes software developed by the University of
        !            16:  *     California, Berkeley and its contributors.
        !            17:  * 4. Neither the name of the University nor the names of its contributors
        !            18:  *    may be used to endorse or promote products derived from this software
        !            19:  *    without specific prior written permission.
        !            20:  *
        !            21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            31:  * SUCH DAMAGE.
        !            32:  *
        !            33:  *     @(#)tty_conf.c  7.6 (Berkeley) 5/9/91
        !            34:  */
        !            35: 
        !            36: #include "param.h"
        !            37: #include "systm.h"
        !            38: #include "buf.h"
        !            39: #include "ioctl.h"
        !            40: #include "tty.h"
        !            41: #include "conf.h"
        !            42: 
        !            43: int    enodev();
        !            44: int    nullop();
        !            45: 
        !            46: int    ttyopen(),ttylclose(),ttread(),ttwrite(),nullioctl(),ttstart();
        !            47: int    ttymodem(), nullmodem(), ttyinput();
        !            48: 
        !            49: #include "tb.h"
        !            50: #if NTB > 0
        !            51: int    tbopen(),tbclose(),tbread(),tbinput(),tbioctl();
        !            52: #endif
        !            53: 
        !            54: #include "sl.h"
        !            55: #if NSL > 0
        !            56: int    slopen(),slclose(),slinput(),sltioctl(),slstart();
        !            57: #endif
        !            58: 
        !            59: 
        !            60: struct linesw linesw[] =
        !            61: {
        !            62:        ttyopen, ttylclose, ttread, ttwrite, nullioctl,
        !            63:        ttyinput, enodev, nullop, ttstart, ttymodem,    /* 0- termios */
        !            64: 
        !            65:        enodev, enodev, enodev, enodev, enodev,         /* 1- defunct */
        !            66:        enodev, enodev, enodev, enodev, enodev,
        !            67: 
        !            68:        enodev, enodev, enodev, enodev, enodev,         /* 2- defunct */
        !            69:        enodev, enodev, enodev, enodev, enodev,
        !            70: #if NTB > 0
        !            71:        tbopen, tbclose, tbread, enodev, tbioctl,
        !            72:        tbinput, enodev, nullop, ttstart, nullmodem,    /* 3- TABLDISC */
        !            73: #else
        !            74:        enodev, enodev, enodev, enodev, enodev,
        !            75:        enodev, enodev, enodev, enodev, enodev,
        !            76: #endif
        !            77: #if NSL > 0
        !            78:        slopen, slclose, enodev, enodev, sltioctl,
        !            79:        slinput, enodev, nullop, slstart, nullmodem,    /* 4- SLIPDISC */
        !            80: #else
        !            81:        enodev, enodev, enodev, enodev, enodev,
        !            82:        enodev, enodev, enodev, enodev, enodev,
        !            83: #endif
        !            84: };
        !            85: 
        !            86: int    nldisp = sizeof (linesw) / sizeof (linesw[0]);
        !            87: 
        !            88: /*
        !            89:  * Do nothing specific version of line
        !            90:  * discipline specific ioctl command.
        !            91:  */
        !            92: /*ARGSUSED*/
        !            93: nullioctl(tp, cmd, data, flags)
        !            94:        struct tty *tp;
        !            95:        char *data;
        !            96:        int flags;
        !            97: {
        !            98: 
        !            99: #ifdef lint
        !           100:        tp = tp; data = data; flags = flags;
        !           101: #endif
        !           102:        return (-1);
        !           103: }

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