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- /*-
- * Copyright (c) 1989 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
- #if defined(LIBC_SCCS) && !defined(lint)
- static char sccsid[] = "@(#)termios.c 5.9 (Berkeley) 5/20/91";
- #endif /* LIBC_SCCS and not lint */
-
- #include <sys/types.h>
- #include <sys/errno.h>
- #include <sys/ioctl.h>
- #include <sys/tty.h>
- #define KERNEL /* XXX - FREAD and FWRITE was ifdef'd KERNEL*/
- #include <sys/fcntl.h>
- #undef KERNEL
- #include <termios.h>
- #include <stdio.h>
- #include <unistd.h>
-
- int
- tcgetattr(fd, t)
- int fd;
- struct termios *t;
- {
-
- return(ioctl(fd, TIOCGETA, t));
- }
-
- int
- tcsetattr(fd, opt, t)
- int fd, opt;
- const struct termios *t;
- {
- struct termios localterm;
-
- if (opt & TCSASOFT) {
- localterm = *t;
- localterm.c_cflag |= CIGNORE;
- t = &localterm;
- opt &= ~TCSASOFT;
- }
- if (opt == TCSANOW)
- return (ioctl(fd, TIOCSETA, t));
- else if (opt == TCSADRAIN)
- return (ioctl(fd, TIOCSETAW, t));
- return (ioctl(fd, TIOCSETAF, t));
- }
-
- int
- #if __STDC__
- tcsetpgrp(int fd, pid_t pgrp)
- #else
- tcsetpgrp(fd, pgrp)
- int fd;
- pid_t pgrp;
- #endif
- {
- int s;
-
- s = pgrp;
- return(ioctl(fd, TIOCSPGRP, &s));
- }
-
- pid_t
- tcgetpgrp(fd)
- {
- int s;
-
- if (ioctl(fd, TIOCGPGRP, &s) < 0)
- return((pid_t)-1);
-
- return((pid_t)s);
- }
-
- speed_t
- cfgetospeed(t)
- const struct termios *t;
- {
-
- return(t->c_ospeed);
- }
-
- speed_t
- cfgetispeed(t)
- const struct termios *t;
- {
-
- return(t->c_ispeed);
- }
-
- int
- cfsetospeed(t, speed)
- struct termios *t;
- speed_t speed;
- {
- t->c_ospeed = speed;
-
- return (0);
- }
-
- int
- cfsetispeed(t, speed)
- struct termios *t;
- speed_t speed;
- {
- t->c_ispeed = speed;
-
- return (0);
- }
-
- void
- cfsetspeed(t, speed)
- struct termios *t;
- speed_t speed;
- {
- t->c_ispeed = t->c_ospeed = speed;
- }
-
- /*
- * Make a pre-existing termios structure into "raw" mode:
- * character-at-a-time mode with no characters interpreted,
- * 8-bit data path.
- */
- void
- cfmakeraw(t)
- struct termios *t;
- {
- t->c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
- t->c_oflag &= ~OPOST;
- t->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
- t->c_cflag &= ~(CSIZE|PARENB);
- t->c_cflag |= CS8;
- /* set MIN/TIME */
- }
-
- tcsendbreak(fd, len)
- int fd, len;
- {
- struct timeval sleepytime;
-
- sleepytime.tv_sec = 0;
- sleepytime.tv_usec = 400000;
- if (ioctl(fd, TIOCSBRK, 0) == -1)
- return (-1);
- select(0, 0, 0, 0, &sleepytime);
- if (ioctl(fd, TIOCCBRK, 0) == -1)
- return (-1);
-
- return (0);
- }
-
- tcdrain(fd)
- int fd;
- {
- if (ioctl(fd, TIOCDRAIN, 0) == -1)
- return (-1);
-
- return (0);
- }
-
- tcflush(fd, which)
- int fd, which;
- {
- int com;
-
- switch (which) {
- case TCIFLUSH:
- com = FREAD;
- break;
- case TCOFLUSH:
- com = FWRITE;
- break;
- case TCIOFLUSH:
- com = FREAD | FWRITE;
- break;
- default:
- errno = EINVAL;
- return (-1);
- }
- if (ioctl(fd, TIOCFLUSH, &com) == -1)
- return (-1);
-
- return (0);
- }
-
- tcflow(fd, action)
- int fd, action;
- {
- switch (action) {
- case TCOOFF:
- return (ioctl(fd, TIOCSTOP, 0));
- break;
- case TCOON:
- return (ioctl(fd, TIOCSTART, 0));
- break;
- case TCIOFF:
- case TCION: { /* these posix functions are STUPID */
- struct termios term;
- unsigned char c;
-
- if (tcgetattr(fd, &term) == -1)
- return (-1);
- c = term.c_cc[action == TCIOFF ? VSTOP : VSTART];
- if (c != _POSIX_VDISABLE && write(fd, &c, 1) == -1)
- return (-1);
- break;
- }
- default:
- errno = EINVAL;
- return (-1);
- }
-
- return (0);
- }
-