1 files changed, 277 insertions, 0 deletions
diff --git a/lib/libc/gen/termios.c b/lib/libc/gen/termios.c
new file mode 100644
index 000000000000..f8b7354f3162
--- /dev/null
+++ b/lib/libc/gen/termios.c
@@ -0,0 +1,277 @@
+/*-
+ * Copyright (c) 1989, 1993
+ *	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.
+ * 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	8.2 (Berkeley) 2/21/94";
+#endif /* LIBC_SCCS and not lint */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include "namespace.h"
+#include <sys/types.h>
+#include <sys/fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+
+#include <errno.h>
+#include <string.h>
+#define	TTYDEFCHARS
+#include <termios.h>
+#include <unistd.h>
+#include "un-namespace.h"
+
+#include "libc_private.h"
+
+int
+tcgetattr(int fd, struct termios *t)
+{
+
+	return (_ioctl(fd, TIOCGETA, t));
+}
+
+int
+tcsetattr(int fd, int opt, const struct termios *t)
+{
+	struct termios localterm;
+
+	if (opt & TCSASOFT) {
+		localterm = *t;
+		localterm.c_cflag |= CIGNORE;
+		t = &localterm;
+	}
+	switch (opt & ~TCSASOFT) {
+	case TCSANOW:
+		return (_ioctl(fd, TIOCSETA, t));
+	case TCSADRAIN:
+		return (_ioctl(fd, TIOCSETAW, t));
+	case TCSAFLUSH:
+		return (_ioctl(fd, TIOCSETAF, t));
+	default:
+		errno = EINVAL;
+		return (-1);
+	}
+}
+
+int
+tcsetpgrp(int fd, pid_t pgrp)
+{
+	int s;
+
+	s = pgrp;
+	return (_ioctl(fd, TIOCSPGRP, &s));
+}
+
+pid_t
+tcgetpgrp(int fd)
+{
+	int s;
+
+	if (_ioctl(fd, TIOCGPGRP, &s) < 0)
+		return ((pid_t)-1);
+
+	return ((pid_t)s);
+}
+
+pid_t
+tcgetsid(int fd)
+{
+	int s;
+
+	if (_ioctl(fd, TIOCGSID, &s) < 0)
+		return ((pid_t)-1);
+
+	return ((pid_t)s);
+}
+
+int
+tcsetsid(int fd, pid_t pid)
+{
+
+	if (pid != getsid(0)) {
+		errno = EINVAL;
+		return (-1);
+	}
+
+	return (_ioctl(fd, TIOCSCTTY, NULL));
+}
+
+speed_t
+cfgetospeed(const struct termios *t)
+{
+
+	return (t->c_ospeed);
+}
+
+speed_t
+cfgetispeed(const struct termios *t)
+{
+
+	return (t->c_ispeed);
+}
+
+int
+cfsetospeed(struct termios *t, speed_t speed)
+{
+
+	t->c_ospeed = speed;
+	return (0);
+}
+
+int
+cfsetispeed(struct termios *t, speed_t speed)
+{
+
+	t->c_ispeed = speed;
+	return (0);
+}
+
+int
+cfsetspeed(struct termios *t, speed_t speed)
+{
+
+	t->c_ispeed = t->c_ospeed = speed;
+	return (0);
+}
+
+/*
+ * Make a pre-existing termios structure into "raw" mode: character-at-a-time
+ * mode with no characters interpreted, 8-bit data path.
+ */
+void
+cfmakeraw(struct termios *t)
+{
+
+	t->c_iflag &= ~(IMAXBEL|IXOFF|INPCK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON|IGNPAR);
+	t->c_iflag |= IGNBRK;
+	t->c_oflag &= ~OPOST;
+	t->c_lflag &= ~(ECHO|ECHOE|ECHOK|ECHONL|ICANON|ISIG|IEXTEN|NOFLSH|TOSTOP|PENDIN);
+	t->c_cflag &= ~(CSIZE|PARENB);
+	t->c_cflag |= CS8|CREAD;
+	t->c_cc[VMIN] = 1;
+	t->c_cc[VTIME] = 0;
+}
+
+/*
+ * Obtain a termios structure which is similar to the one provided by
+ * the kernel.
+ */
+void
+cfmakesane(struct termios *t)
+{
+
+	t->c_cflag = TTYDEF_CFLAG;
+	t->c_iflag = TTYDEF_IFLAG;
+	t->c_lflag = TTYDEF_LFLAG;
+	t->c_oflag = TTYDEF_OFLAG;
+	t->c_ispeed = TTYDEF_SPEED;
+	t->c_ospeed = TTYDEF_SPEED;
+	memcpy(&t->c_cc, ttydefchars, sizeof ttydefchars);
+}
+
+int
+tcsendbreak(int fd, int len __unused)
+{
+	struct timeval sleepytime;
+
+	sleepytime.tv_sec = 0;
+	sleepytime.tv_usec = 400000;
+	if (_ioctl(fd, TIOCSBRK, 0) == -1)
+		return (-1);
+	(void)_select(0, 0, 0, 0, &sleepytime);
+	if (_ioctl(fd, TIOCCBRK, 0) == -1)
+		return (-1);
+	return (0);
+}
+
+int
+__libc_tcdrain(int fd)
+{
+
+	return (_ioctl(fd, TIOCDRAIN, 0));
+}
+
+#pragma weak tcdrain
+int
+tcdrain(int fd)
+{
+
+	return (((int (*)(int))
+	    __libc_interposing[INTERPOS_tcdrain])(fd));
+}
+
+__weak_reference(__libc_tcdrain, __tcdrain);
+__weak_reference(__libc_tcdrain, _tcdrain);
+
+int
+tcflush(int fd, int 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);
+	}
+	return (_ioctl(fd, TIOCFLUSH, &com));
+}
+
+int
+tcflow(int fd, int action)
+{
+	struct termios term;
+	u_char c;
+
+	switch (action) {
+	case TCOOFF:
+		return (_ioctl(fd, TIOCSTOP, 0));
+	case TCOON:
+		return (_ioctl(fd, TIOCSTART, 0));
+	case TCION:
+	case TCIOFF:
+		if (tcgetattr(fd, &term) == -1)
+			return (-1);
+		c = term.c_cc[action == TCIOFF ? VSTOP : VSTART];
+		if (c != _POSIX_VDISABLE && _write(fd, &c, sizeof(c)) == -1)
+			return (-1);
+		return (0);
+	default:
+		errno = EINVAL;
+		return (-1);
+	}
+	/* NOTREACHED */
+}