import winsup-2000-02-17 snapshot

winsup/cygwin/termios.cc

@@ -0,0 +1,274 @@
+/* termios.cc: termios for WIN32.
+
+   Copyright 1996, 1997, 1998, 2000 Cygnus Solutions.
+
+   Written by Doug Evans and Steve Chamberlain of Cygnus Support
+   dje@cygnus.com, sac@cygnus.com
+
+This file is part of Cygwin.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+#include <errno.h>
+#include "winsup.h"
+
+/* tcsendbreak: POSIX 7.2.2.1 */
+extern "C"
+int
+tcsendbreak (int fd, int duration)
+{
+  int res = -1;
+
+  if (dtable.not_open (fd))
+    {
+      set_errno (EBADF);
+      goto out;
+    }
+
+  fhandler_base *fh;
+  fh = dtable[fd];
+
+  if (!fh->is_tty ())
+    set_errno (ENOTTY);
+  else
+    {
+      if ((res = fh->bg_check (-SIGTTOU)) > 0)
+	res = fh->tcsendbreak (duration);
+    }
+
+out:
+  syscall_printf ("%d = tcsendbreak (%d, %d )", res, fd, duration);
+  return res;
+}
+
+/* tcdrain: POSIX 7.2.2.1 */
+extern "C"
+int
+tcdrain (int fd)
+{
+  int res = -1;
+
+  termios_printf ("tcdrain");
+
+  if (dtable.not_open (fd))
+    {
+      set_errno (EBADF);
+      goto out;
+    }
+
+  fhandler_base *fh;
+  fh = dtable[fd];
+
+  if (!fh->is_tty ())
+    set_errno (ENOTTY);
+  else
+    {
+      if ((res = fh->bg_check (-SIGTTOU)) > 0)
+	res = fh->tcdrain ();
+    }
+
+out:
+  syscall_printf ("%d = tcdrain (%d)", res, fd);
+  return res;
+}
+
+/* tcflush: POSIX 7.2.2.1 */
+extern "C"
+int
+tcflush (int fd, int queue)
+{
+  int res = -1;
+
+  if (dtable.not_open (fd))
+    {
+      set_errno (EBADF);
+      goto out;
+    }
+
+  fhandler_base *fh;
+  fh = dtable[fd];
+
+  if (!fh->is_tty ())
+    set_errno (ENOTTY);
+  else
+    {
+      if ((res = fh->bg_check (-SIGTTOU)) > 0)
+	res = fh->tcflush (queue);
+    }
+
+out:
+  termios_printf ("%d = tcflush (%d, %d)", res, fd, queue);
+  return res;
+}
+
+/* tcflow: POSIX 7.2.2.1 */
+extern "C"
+int
+tcflow (int fd, int action)
+{
+  int res = -1;
+
+  if (dtable.not_open (fd))
+    {
+      set_errno (EBADF);
+      goto out;
+    }
+
+  fhandler_base *fh;
+  fh = dtable[fd];
+
+  if (!fh->is_tty ())
+    set_errno (ENOTTY);
+  else
+    {
+      if ((res = fh->bg_check (-SIGTTOU)) > 0)
+	res = fh->tcflow (action);
+    }
+
+out:
+  syscall_printf ("%d = tcflow (%d, %d)", res, fd, action);
+  return res;
+}
+
+/* tcsetattr: POSIX96 7.2.1.1 */
+extern "C"
+int
+tcsetattr (int fd, int a, const struct termios *t)
+{
+  int res = -1;
+
+  t = __tonew_termios (t);
+  if (dtable.not_open (fd))
+    {
+      set_errno (EBADF);
+      goto out;
+    }
+
+  fhandler_base *fh;
+  fh = dtable[fd];
+
+  if (!fh->is_tty ())
+    set_errno (ENOTTY);
+  else
+    {
+      if ((res = fh->bg_check (-SIGTTOU)) > 0)
+	res = fh->tcsetattr (a, t);
+    }
+
+out:
+  termios_printf ("iflag %x, oflag %x, cflag %x, lflag %x, VMIN %d, VTIME %d",
+	t->c_iflag, t->c_oflag, t->c_cflag, t->c_lflag, t->c_cc[VMIN],
+	t->c_cc[VTIME]);
+  termios_printf ("%d = tcsetattr (%d, %d, %x)", res, fd, a, t);
+  return res;
+}
+
+/* tcgetattr: POSIX 7.2.1.1 */
+extern "C"
+int
+tcgetattr (int fd, struct termios *in_t)
+{
+  int res = -1;
+  struct termios *t = __makenew_termios (in_t);
+
+  if (dtable.not_open (fd))
+    set_errno (EBADF);
+  else if (!dtable[fd]->is_tty ())
+    set_errno (ENOTTY);
+  else
+    {
+      if ((res = dtable[fd]->tcgetattr (t)) == 0)
+	(void) __toapp_termios (in_t, t);
+    }
+
+  if (res)
+    termios_printf ("%d = tcgetattr (%d, %x)", res, fd, in_t);
+  else
+    termios_printf ("iflag %x, oflag %x, cflag %x, lflag %x, VMIN %d, VTIME %d",
+	  t->c_iflag, t->c_oflag, t->c_cflag, t->c_lflag, t->c_cc[VMIN],
+	  t->c_cc[VTIME]);
+
+  return res;
+}
+
+/* tcgetpgrp: POSIX 7.2.3.1 */
+extern "C"
+int
+tcgetpgrp (int fd)
+{
+  int res = -1;
+
+  if (dtable.not_open (fd))
+    set_errno (EBADF);
+  else if (!dtable[fd]->is_tty ())
+    set_errno (ENOTTY);
+  else
+    res = dtable[fd]->tcgetpgrp ();
+
+  termios_printf ("%d = tcgetpgrp (%d)", res, fd);
+  return res;
+}
+
+/* tcsetpgrp: POSIX 7.2.4.1 */
+extern "C"
+int
+tcsetpgrp (int fd, pid_t pgid)
+{
+  int res = -1;
+
+  if (dtable.not_open (fd))
+    set_errno (EBADF);
+  else if (!dtable[fd]->is_tty ())
+    set_errno (ENOTTY);
+  else
+    res = dtable[fd]->tcsetpgrp (pgid);
+
+  termios_printf ("%d = tcsetpgrp (%d, %x)", res, fd, pgid);
+  return res;
+}
+
+/* NIST PCTS requires not macro-only implementation */
+#undef cfgetospeed
+#undef cfgetispeed
+#undef cfsetospeed
+#undef cfsetispeed
+
+/* cfgetospeed: POSIX96 7.1.3.1 */
+extern "C"
+speed_t
+cfgetospeed (struct termios *tp)
+{
+  return __tonew_termios(tp)->c_ospeed;
+}
+
+/* cfgetispeed: POSIX96 7.1.3.1 */
+extern "C"
+speed_t
+cfgetispeed (struct termios *tp)
+{
+  return __tonew_termios(tp)->c_ispeed;
+}
+
+/* cfsetospeed: POSIX96 7.1.3.1 */
+extern "C"
+int
+cfsetospeed (struct termios *in_tp, speed_t speed)
+{
+  struct termios *tp = __tonew_termios (in_tp);
+  tp->c_ospeed = speed;
+  (void) __toapp_termios (in_tp, tp);
+  return 0;
+}
+
+/* cfsetispeed: POSIX96 7.1.3.1 */
+extern "C"
+int
+cfsetispeed (struct termios *in_tp, speed_t speed)
+{
+  struct termios *tp = __tonew_termios (in_tp);
+  tp->c_ispeed = speed;
+  (void) __toapp_termios (in_tp, tp);
+  return 0;
+}