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Annotation of coherent/g/usr/bin/script/tty_mode.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * File:       tty_mode.c
        !             3:  *
        !             4:  * Purpose:    transfer modes between tty devices
        !             5:  *
        !             6:  * $Log:       tty_mode.c,v $
        !             7:  * Revision 1.2  92/06/15  10:04:58  bin
        !             8:  * *** empty log message ***
        !             9:  * 
        !            10:  */
        !            11: 
        !            12: /*
        !            13:  * Includes.
        !            14:  */
        !            15: #include <sgtty.h>
        !            16: 
        !            17: /*
        !            18:  * Definitions.
        !            19:  *     Constants.
        !            20:  *     Macros with argument lists.
        !            21:  *     Typedefs.
        !            22:  *     Enums.
        !            23:  */
        !            24: typedef unsigned char uchar;
        !            25: typedef unsigned int  uint;
        !            26: typedef unsigned long ulong;
        !            27: 
        !            28: /*
        !            29:  * Functions.
        !            30:  *     Import Functions.
        !            31:  *     Export Functions.
        !            32:  *     Local Functions.
        !            33:  */
        !            34: int tty_getmode();
        !            35: int tty_setmode();
        !            36: 
        !            37: /*
        !            38:  * Global Data.
        !            39:  *     Import Variables.
        !            40:  *     Export Variables.
        !            41:  *     Local Variables.
        !            42:  */
        !            43: static struct sgttyb   tty_sgttyb;
        !            44: static struct tchars   tty_tchars;
        !            45: 
        !            46: /*
        !            47:  * tty_getmode()
        !            48:  *
        !            49:  * Save modes for the given file descriptor.
        !            50:  */
        !            51: int
        !            52: tty_getmode(fd)
        !            53: int fd;
        !            54: {
        !            55:        if (ioctl(fd, TIOCGETP, &tty_sgttyb) < 0)
        !            56:                return -1;
        !            57:        if (ioctl(fd, TIOCGETC, &tty_tchars) < 0)
        !            58:                return -1;
        !            59:        return 0;
        !            60: }
        !            61: 
        !            62: /*
        !            63:  * tty_setmode()
        !            64:  *
        !            65:  * Restore modes to the given file descriptor.
        !            66:  */
        !            67: int
        !            68: tty_setmode(fd)
        !            69: int fd;
        !            70: {
        !            71:        if (ioctl(fd, TIOCSETP, &tty_sgttyb) < 0)
        !            72:                return -1;
        !            73:        if (ioctl(fd, TIOCSETC, &tty_tchars) < 0)
        !            74:                return -1;
        !            75:        return 0;
        !            76: }

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