new copyright notice

[unix-history] / usr / src / lib / libc / gen / termios.c

/*
* Copyright (c) 1989 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley.  The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)termios.c   5.1 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */

#include <sys/types.h>
#include <sys/errno.h>
#include <sys/termios.h>
#include <sys/tty.h>
#include <stdio.h>

tcgetattr(fd, t)
       int fd;
       struct termios *t;
{
       extern errno;

       return(ioctl(fd, TIOCGETA, t));
}

tcsetattr(fd, opt, t)
       int fd, opt;
       struct termios *t;
{
       long code;
       int ret;
       extern errno;

       switch (opt) {
       case TCSANOW:
               code = TIOCSETA; 
               break;
       case TCSADRAIN: 
               code = TIOCSETAW; 
               break;
       case TCSADFLUSH: 
               code = TIOCSETAF; 
               break;
       case TCSANOW | TCSASOFT:
               code = TIOCSETAS; 
               break;
       case TCSADRAIN | TCSASOFT:
               code = TIOCSETAWS;
               break;
       case TCSADFLUSH | TCSASOFT:
               code = TIOCSETAFS;
               break;
       default:
               errno = EINVAL;
               return(-1);
       }
       return(ioctl(fd, code, t));
}

tcsetpgrp(fd, pgrp)
{
       return(ioctl(fd, TIOCSPGRP, &pgrp));
}

tcgetpgrp(fd)
{
       int pgrp;

       if (ioctl(fd, TIOCGPGRP, &pgrp) < 0)
               return(-1);
       return(pgrp);
}

cfgetospeed(t)
       struct termios *t;
{
       return(t->c_ospeed);
}

cfgetispeed(t)
       struct termios *t;
{
       return(t->c_ispeed);
}

cfsetospeed(t, speed)
       struct termios *t;
{
       t->c_ospeed = speed;
}

cfsetispeed(t, speed)
       struct termios *t;
{
       t->c_ispeed = speed;
}

cfsetspeed(t, speed)
       struct termios *t;
{
       t->c_ispeed = t->c_ospeed = speed;
}

cfmakeraw(t)
       struct termios *t;
{
       t->c_iflag &= ~(IGNBRK|BRKINT|PARMRK|INLCR|IGNCR|ICRNL|IXON);
       t->c_oflag &= ~(ONLCR|OXTABS);
       t->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
       /* set MIN/TIME */
}