Added gcc/m2/mc-boot-ch/Gtermios.cc.devel/m2link

gcc/m2/ChangeLog:

	* mc-boot-ch/Gtermios.cc (New file).  Replacing Gtermios.c.

Signed-off-by: Gaius Mulley <gaius.mulley@southwales.ac.uk>

1 files changed, 1947 insertions, 0 deletions

diff --git a/gcc/m2/mc-boot-ch/Gtermios.cc b/gcc/m2/mc-boot-ch/Gtermios.cc
new file mode 100644
index 0000000..5982b5f
--- /dev/null
+++ b/gcc/m2/mc-boot-ch/Gtermios.cc
@@ -0,0 +1,1947 @@
+/* Gtermios.c handwritten module for mc.
+
+Copyright (C) 2010-2022 Free Software Foundation, Inc.
+Contributed by Gaius Mulley <gaius@glam.ac.uk>.
+
+This file is part of GNU Modula-2.
+
+GNU Modula-2 is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GNU Modula-2 is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Modula-2; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "system.h"
+
+#include "gm2-libs-host.h"
+
+#ifdef HAVE_TERMIOS_H
+# include <termios.h>
+#endif
+
+#ifdef TERMIOS_NEEDS_XOPEN_SOURCE
+#define _XOPEN_SOURCE
+#endif
+
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+#else
+#define EXTERN
+#endif
+
+#define EXPORT(X) termios##_##X
+
+typedef enum {
+  vintr,
+  vquit,
+  verase,
+  vkill,
+  veof,
+  vtime,
+  vmin,
+  vswtc,
+  vstart,
+  vstop,
+  vsusp,
+  veol,
+  vreprint,
+  vdiscard,
+  vwerase,
+  vlnext,
+  veol2
+} ControlChar;
+
+typedef enum {
+  /* input flag bits.  */
+  ignbrk,
+  ibrkint,
+  ignpar,
+  iparmrk,
+  inpck,
+  istrip,
+  inlcr,
+  igncr,
+  icrnl,
+  iuclc,
+  ixon,
+  ixany,
+  ixoff,
+  imaxbel,
+  /* output flag bits.  */
+  opost,
+  olcuc,
+  onlcr,
+  ocrnl,
+  onocr,
+  onlret,
+  ofill,
+  ofdel,
+  onl0,
+  onl1,
+  ocr0,
+  ocr1,
+  ocr2,
+  ocr3,
+  otab0,
+  otab1,
+  otab2,
+  otab3,
+  obs0,
+  obs1,
+  off0,
+  off1,
+  ovt0,
+  ovt1,
+  /* baud rate.  */
+  b0,
+  b50,
+  b75,
+  b110,
+  b135,
+  b150,
+  b200,
+  b300,
+  b600,
+  b1200,
+  b1800,
+  b2400,
+  b4800,
+  b9600,
+  b19200,
+  b38400,
+  b57600,
+  b115200,
+  b240400,
+  b460800,
+  b500000,
+  b576000,
+  b921600,
+  b1000000,
+  b1152000,
+  b1500000,
+  b2000000,
+  b2500000,
+  b3000000,
+  b3500000,
+  b4000000,
+  maxbaud,
+  crtscts,
+  /* character size.  */
+  cs5,
+  cs6,
+  cs7,
+  cs8,
+  cstopb,
+  cread,
+  parenb,
+  parodd,
+  hupcl,
+  clocal,
+  /* local flags.  */
+  lisig,
+  licanon,
+  lxcase,
+  lecho,
+  lechoe,
+  lechok,
+  lechonl,
+  lnoflsh,
+  ltopstop,
+  lechoctl,
+  lechoprt,
+  lechoke,
+  lflusho,
+  lpendin,
+  liexten
+} Flag;
+
+int
+doSetUnset (unsigned int *bitset, unsigned int mask, int value)
+{
+  if (value)
+    (*bitset) |= mask;
+  else
+    (*bitset) &= (~mask);
+  return 1;
+}
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* InitTermios - new data structure.  */
+
+void *
+EXPORT (InitTermios) (void)
+{
+  struct termios *p = (struct termios *)malloc (sizeof (struct termios));
+
+  memset (p, 0, sizeof (struct termios));
+  return p;
+}
+
+/* KillTermios - delete data structure.  */
+
+void *
+EXPORT (KillTermios) (struct termios *p)
+{
+  free (p);
+  return NULL;
+}
+
+/* tcsnow - return the value of TCSANOW.  */
+
+int
+EXPORT (tcsnow) (void)
+{
+  return TCSANOW;
+}
+
+/* tcsdrain - return the value of TCSADRAIN.  */
+
+int
+EXPORT (tcsdrain) (void)
+{
+  return TCSADRAIN;
+}
+
+/* tcsflush - return the value of TCSAFLUSH.  */
+
+int
+EXPORT (tcsflush) (void)
+{
+  return TCSAFLUSH;
+}
+
+/* cfgetospeed - return output baud rate.  */
+
+int
+EXPORT (cfgetospeed) (struct termios *t)
+{
+  return cfgetospeed (t);
+}
+
+/* cfgetispeed - return input baud rate.  */
+
+int
+EXPORT (cfgetispeed) (struct termios *t)
+{
+  return cfgetispeed (t);
+}
+
+/* cfsetospeed - set output baud rate.  */
+
+int
+EXPORT (cfsetospeed) (struct termios *t, unsigned int b)
+{
+  return cfsetospeed (t, b);
+}
+
+/* cfsetispeed - set input baud rate.  */
+
+int
+EXPORT (cfsetispeed) (struct termios *t, unsigned int b)
+{
+  return cfsetispeed (t, b);
+}
+
+/* cfsetspeed - set input and output baud rate.  */
+
+int
+EXPORT (cfsetspeed) (struct termios *t, unsigned int b)
+{
+  int val = cfsetispeed (t, b);
+  if (val == 0)
+    return cfsetospeed (t, b);
+  cfsetospeed (t, b);
+  return val;
+}
+
+/* tcgetattr - get state of, fd, into, t.  */
+
+int
+EXPORT (tcgetattr) (int fd, struct termios *t)
+{
+  return tcgetattr (fd, t);
+}
+
+/* tcsetattr - set state of, fd, to, t, using option.  */
+
+int
+EXPORT (tcsetattr) (int fd, int option, struct termios *t)
+{
+  return tcsetattr (fd, option, t);
+}
+
+/* cfmakeraw - sets the terminal to raw mode.  */
+
+void
+EXPORT (cfmakeraw) (struct termios *t)
+{
+#if defined(HAVE_CFMAKERAW)
+  return cfmakeraw (t);
+#endif
+}
+
+/* tcsendbreak - send zero bits for duration.  */
+
+int
+EXPORT (tcsendbreak) (int fd, int duration)
+{
+  return tcsendbreak (fd, duration);
+}
+
+/* tcdrain - waits for pending output to be written on, fd.  */
+
+int
+EXPORT (tcdrain) (int fd)
+{
+  return tcdrain (fd);
+}
+
+/* tcflushi - flush input.  */
+
+int
+EXPORT (tcflushi) (int fd)
+{
+#if defined(TCIFLUSH)
+  return tcflush (fd, TCIFLUSH);
+#else
+  return 1;
+#endif
+}
+
+/* tcflusho - flush output.  */
+
+int
+EXPORT (tcflusho) (int fd)
+{
+#if defined(TCOFLUSH)
+  return tcflush (fd, TCOFLUSH);
+#else
+  return 1;
+#endif
+}
+
+/* tcflushio - flush input and output.  */
+
+int
+EXPORT (tcflushio) (int fd)
+{
+#if defined(TCIOFLUSH)
+  return tcflush (fd, TCIOFLUSH);
+#else
+  return 1;
+#endif
+}
+
+/* tcflowoni - restart input on, fd.  */
+
+int
+EXPORT (tcflowoni) (int fd)
+{
+#if defined(TCION)
+  return tcflow (fd, TCION);
+#else
+  return 1;
+#endif
+}
+
+/* tcflowoffi - stop input on, fd.  */
+
+int
+EXPORT (tcflowoffi) (int fd)
+{
+#if defined(TCIOFF)
+  return tcflow (fd, TCIOFF);
+#else
+  return 1;
+#endif
+}
+
+/* tcflowono - restart output on, fd.  */
+
+int
+EXPORT (tcflowono) (int fd)
+{
+#if defined(TCOON)
+  return tcflow (fd, TCOON);
+#else
+  return 1;
+#endif
+}
+
+/* tcflowoffo - stop output on, fd.  */
+
+int
+EXPORT (tcflowoffo) (int fd)
+{
+#if defined(TCOOFF)
+  return tcflow (fd, TCOOFF);
+#else
+  return 1;
+#endif
+}
+
+/* GetFlag - sets a flag value from, t, in, b, and returns TRUE if,
+   t, supports, f.  */
+
+int
+EXPORT (GetFlag) (struct termios *t, Flag f, int *b)
+{
+  switch (f)
+    {
+
+    case ignbrk:
+#if defined(IGNBRK)
+      *b = ((t->c_iflag & IGNBRK) == IGNBRK);
+      return 1;
+#else
+      return 0;
+#endif
+    case ibrkint:
+#if defined(BRKINT)
+      *b = ((t->c_iflag & BRKINT) == BRKINT);
+      return 1;
+#else
+      return 0;
+#endif
+    case ignpar:
+#if defined(IGNPAR)
+      *b = ((t->c_iflag & IGNPAR) == IGNPAR);
+      return 1;
+#else
+      return 0;
+#endif
+    case iparmrk:
+#if defined(PARMRK)
+      *b = ((t->c_iflag & PARMRK) == PARMRK);
+      return 1;
+#else
+      return 0;
+#endif
+    case inpck:
+#if defined(INPCK)
+      *b = ((t->c_iflag & INPCK) == INPCK);
+      return 1;
+#else
+      return 0;
+#endif
+    case istrip:
+#if defined(ISTRIP)
+      *b = ((t->c_iflag & ISTRIP) == ISTRIP);
+      return 1;
+#else
+      return 0;
+#endif
+    case inlcr:
+#if defined(INLCR)
+      *b = ((t->c_iflag & INLCR) == INLCR);
+      return 1;
+#else
+      return 0;
+#endif
+    case igncr:
+#if defined(IGNCR)
+      *b = ((t->c_iflag & IGNCR) == IGNCR);
+      return 1;
+#else
+      return 0;
+#endif
+    case icrnl:
+#if defined(ICRNL)
+      *b = ((t->c_iflag & ICRNL) == ICRNL);
+      return 1;
+#else
+      return 0;
+#endif
+    case iuclc:
+#if defined(IUCLC)
+      *b = ((t->c_iflag & IUCLC) == IUCLC);
+      return 1;
+#else
+      return 0;
+#endif
+    case ixon:
+#if defined(IXON)
+      *b = ((t->c_iflag & IXON) == IXON);
+      return 1;
+#else
+      return 0;
+#endif
+    case ixany:
+#if defined(IXANY)
+      *b = ((t->c_iflag & IXANY) == IXANY);
+      return 1;
+#else
+      return 0;
+#endif
+    case ixoff:
+#if defined(IXOFF)
+      *b = ((t->c_iflag & IXOFF) == IXOFF);
+      return 1;
+#else
+      return 0;
+#endif
+    case imaxbel:
+#if defined(IMAXBEL)
+      *b = ((t->c_iflag & IMAXBEL) == IMAXBEL);
+      return 1;
+#else
+      return 0;
+#endif
+    case opost:
+#if defined(OPOST)
+      *b = ((t->c_oflag & OPOST) == OPOST);
+      return 1;
+#else
+      return 0;
+#endif
+    case olcuc:
+#if defined(OLCUC)
+      *b = ((t->c_oflag & OLCUC) == OLCUC);
+      return 1;
+#else
+      return 0;
+#endif
+    case onlcr:
+#if defined(ONLCR)
+      *b = ((t->c_oflag & ONLCR) == ONLCR);
+      return 1;
+#else
+      return 0;
+#endif
+    case ocrnl:
+#if defined(OCRNL)
+      *b = ((t->c_oflag & OCRNL) == OCRNL);
+      return 1;
+#else
+      return 0;
+#endif
+    case onocr:
+#if defined(ONOCR)
+      *b = ((t->c_oflag & ONOCR) == ONOCR);
+      return 1;
+#else
+      return 0;
+#endif
+    case onlret:
+#if defined(ONLRET)
+      *b = ((t->c_oflag & ONLRET) == ONLRET);
+      return 1;
+#else
+      return 0;
+#endif
+    case ofill:
+#if defined(OFILL)
+      *b = ((t->c_oflag & OFILL) == OFILL);
+      return 1;
+#else
+      return 0;
+#endif
+    case ofdel:
+#if defined(OFDEL)
+      *b = ((t->c_oflag & OFDEL) == OFDEL);
+      return 1;
+#else
+      return 0;
+#endif
+    case onl0:
+#if defined(NL0)
+      *b = ((t->c_oflag & NL0) == NL0);
+      return 1;
+#else
+      return 0;
+#endif
+    case onl1:
+#if defined(NL1)
+      *b = ((t->c_oflag & NL1) == NL1);
+      return 1;
+#else
+      return 0;
+#endif
+    case ocr0:
+#if defined(CR0)
+      *b = ((t->c_oflag & CR0) == CR0);
+      return 1;
+#else
+      return 0;
+#endif
+    case ocr1:
+#if defined(CR1)
+      *b = ((t->c_oflag & CR1) == CR1);
+      return 1;
+#else
+      return 0;
+#endif
+    case ocr2:
+#if defined(CR2)
+      *b = ((t->c_oflag & CR2) == CR2);
+      return 1;
+#else
+      return 0;
+#endif
+    case ocr3:
+#if defined(CR3)
+      *b = ((t->c_oflag & CR3) == CR3);
+      return 1;
+#else
+      return 0;
+#endif
+    case otab0:
+#if defined(TAB0)
+      *b = ((t->c_oflag & TAB0) == TAB0);
+      return 1;
+#else
+      return 0;
+#endif
+    case otab1:
+#if defined(TAB1)
+      *b = ((t->c_oflag & TAB1) == TAB1);
+      return 1;
+#else
+      return 0;
+#endif
+    case otab2:
+#if defined(TAB2)
+      *b = ((t->c_oflag & TAB2) == TAB2);
+      return 1;
+#else
+      return 0;
+#endif
+    case otab3:
+#if defined(TAB3)
+      *b = ((t->c_oflag & TAB3) == TAB3);
+      return 1;
+#else
+      return 0;
+#endif
+    case obs0:
+#if defined(BS0)
+      *b = ((t->c_oflag & BS0) == BS0);
+      return 1;
+#else
+      return 0;
+#endif
+    case obs1:
+#if defined(BS1)
+      *b = ((t->c_oflag & BS1) == BS1);
+      return 1;
+#else
+      return 0;
+#endif
+    case off0:
+#if defined(FF0)
+      *b = ((t->c_oflag & FF0) == FF0);
+      return 1;
+#else
+      return 0;
+#endif
+    case off1:
+#if defined(FF1)
+      *b = ((t->c_oflag & FF1) == FF1);
+      return 1;
+#else
+      return 0;
+#endif
+    case ovt0:
+#if defined(VT0)
+      *b = ((t->c_oflag & VT0) == VT0);
+      return 1;
+#else
+      return 0;
+#endif
+    case ovt1:
+#if defined(VT1)
+      *b = ((t->c_oflag & VT1) == VT1);
+      return 1;
+#else
+      return 0;
+#endif
+    case b0:
+#if defined(B0)
+      *b = ((t->c_cflag & B0) == B0);
+      return 1;
+#else
+      return 0;
+#endif
+    case b50:
+#if defined(B50)
+      *b = ((t->c_cflag & B50) == B50);
+      return 1;
+#else
+      return 0;
+#endif
+    case b75:
+#if defined(B75)
+      *b = ((t->c_cflag & B75) == B75);
+      return 1;
+#else
+      return 0;
+#endif
+    case b110:
+#if defined(B110)
+      *b = ((t->c_cflag & B110) == B110);
+      return 1;
+#else
+      return 0;
+#endif
+    case b135:
+#if defined(B134)
+      *b = ((t->c_cflag & B134) == B134);
+      return 1;
+#else
+      return 0;
+#endif
+    case b150:
+#if defined(B150)
+      *b = ((t->c_cflag & B150) == B150);
+      return 1;
+#else
+      return 0;
+#endif
+    case b200:
+#if defined(B200)
+      *b = ((t->c_cflag & B200) == B200);
+      return 1;
+#else
+      return 0;
+#endif
+    case b300:
+#if defined(B300)
+      *b = ((t->c_cflag & B300) == B300);
+      return 1;
+#else
+      return 0;
+#endif
+    case b600:
+#if defined(B600)
+      *b = ((t->c_cflag & B600) == B600);
+      return 1;
+#else
+      return 0;
+#endif
+    case b1200:
+#if defined(B1200)
+      *b = ((t->c_cflag & B1200) == B1200);
+      return 1;
+#else
+      return 0;
+#endif
+    case b1800:
+#if defined(B1800)
+      *b = ((t->c_cflag & B1800) == B1800);
+      return 1;
+#else
+      return 0;
+#endif
+    case b2400:
+#if defined(B2400)
+      *b = ((t->c_cflag & B2400) == B2400);
+      return 1;
+#else
+      return 0;
+#endif
+    case b4800:
+#if defined(B4800)
+      *b = ((t->c_cflag & B4800) == B4800);
+      return 1;
+#else
+      return 0;
+#endif
+    case b9600:
+#if defined(B9600)
+      *b = ((t->c_cflag & B9600) == B9600);
+      return 1;
+#else
+      return 0;
+#endif
+    case b19200:
+#if defined(B19200)
+      *b = ((t->c_cflag & B19200) == B19200);
+      return 1;
+#else
+      return 0;
+#endif
+    case b38400:
+#if defined(B38400)
+      *b = ((t->c_cflag & B38400) == B38400);
+      return 1;
+#else
+      return 0;
+#endif
+    case b57600:
+#if defined(B57600)
+      *b = ((t->c_cflag & B57600) == B57600);
+      return 1;
+#else
+      return 0;
+#endif
+    case b115200:
+#if defined(B115200)
+      *b = ((t->c_cflag & B115200) == B115200);
+      return 1;
+#else
+      return 0;
+#endif
+    case b240400:
+#if defined(B230400)
+      *b = ((t->c_cflag & B230400) == B230400);
+      return 1;
+#else
+      return 0;
+#endif
+    case b460800:
+#if defined(B460800)
+      *b = ((t->c_cflag & B460800) == B460800);
+      return 1;
+#else
+      return 0;
+#endif
+    case b500000:
+#if defined(B500000)
+      *b = ((t->c_cflag & B500000) == B500000);
+      return 1;
+#else
+      return 0;
+#endif
+    case b576000:
+#if defined(B576000)
+      *b = ((t->c_cflag & B576000) == B576000);
+      return 1;
+#else
+      return 0;
+#endif
+    case b921600:
+#if defined(B921600)
+      *b = ((t->c_cflag & B921600) == B921600);
+      return 1;
+#else
+      return 0;
+#endif
+    case b1000000:
+#if defined(B1000000)
+      *b = ((t->c_cflag & B1000000) == B1000000);
+      return 1;
+#else
+      return 0;
+#endif
+    case b1152000:
+#if defined(B1152000)
+      *b = ((t->c_cflag & B1152000) == B1152000);
+      return 1;
+#else
+      return 0;
+#endif
+    case b1500000:
+#if defined(B1500000)
+      *b = ((t->c_cflag & B1500000) == B1500000);
+      return 1;
+#else
+      return 0;
+#endif
+    case b2000000:
+#if defined(B2000000)
+      *b = ((t->c_cflag & B2000000) == B2000000);
+      return 1;
+#else
+      return 0;
+#endif
+    case b2500000:
+#if defined(B2500000)
+      *b = ((t->c_cflag & B2500000) == B2500000);
+      return 1;
+#else
+      return 0;
+#endif
+    case b3000000:
+#if defined(B3000000)
+      *b = ((t->c_cflag & B3000000) == B3000000);
+      return 1;
+#else
+      return 0;
+#endif
+    case b3500000:
+#if defined(B3500000)
+      *b = ((t->c_cflag & B3500000) == B3500000);
+      return 1;
+#else
+      return 0;
+#endif
+    case b4000000:
+#if defined(B4000000)
+      *b = ((t->c_cflag & B4000000) == B4000000);
+      return 1;
+#else
+      return 0;
+#endif
+    case maxbaud:
+#if defined(__MAX_BAUD)
+      *b = ((t->c_cflag & __MAX_BAUD) == __MAX_BAUD);
+      return 1;
+#else
+      return 0;
+#endif
+    case crtscts:
+#if defined(CRTSCTS)
+      *b = ((t->c_cflag & CRTSCTS) == CRTSCTS);
+      return 1;
+#else
+      return 0;
+#endif
+    case cs5:
+#if defined(CS5)
+      *b = ((t->c_cflag & CS5) == CS5);
+      return 1;
+#else
+      return 0;
+#endif
+    case cs6:
+#if defined(CS6)
+      *b = ((t->c_cflag & CS6) == CS6);
+      return 1;
+#else
+      return 0;
+#endif
+    case cs7:
+#if defined(CS7)
+      *b = ((t->c_cflag & CS7) == CS7);
+      return 1;
+#else
+      return 0;
+#endif
+    case cs8:
+#if defined(CS8)
+      *b = ((t->c_cflag & CS8) == CS8);
+      return 1;
+#else
+      return 0;
+#endif
+    case cstopb:
+#if defined(CSTOPB)
+      *b = ((t->c_cflag & CSTOPB) == CSTOPB);
+      return 1;
+#else
+      return 0;
+#endif
+    case cread:
+#if defined(CREAD)
+      *b = ((t->c_cflag & CREAD) == CREAD);
+      return 1;
+#else
+      return 0;
+#endif
+    case parenb:
+#if defined(PARENB)
+      *b = ((t->c_cflag & PARENB) == PARENB);
+      return 1;
+#else
+      return 0;
+#endif
+    case parodd:
+#if defined(PARODD)
+      *b = ((t->c_cflag & PARODD) == PARODD);
+      return 1;
+#else
+      return 0;
+#endif
+    case hupcl:
+#if defined(HUPCL)
+      *b = ((t->c_cflag & HUPCL) == HUPCL);
+      return 1;
+#else
+      return 0;
+#endif
+    case clocal:
+#if defined(CLOCAL)
+      *b = ((t->c_cflag & CLOCAL) == CLOCAL);
+      return 1;
+#else
+      return 0;
+#endif
+    case lisig:
+#if defined(ISIG)
+      *b = ((t->c_lflag & ISIG) == ISIG);
+      return 1;
+#else
+      return 0;
+#endif
+    case licanon:
+#if defined(ICANON)
+      *b = ((t->c_lflag & ICANON) == ICANON);
+      return 1;
+#else
+      return 0;
+#endif
+    case lxcase:
+#if defined(XCASE)
+      *b = ((t->c_lflag & XCASE) == XCASE);
+      return 1;
+#else
+      return 0;
+#endif
+    case lecho:
+#if defined(ECHO)
+      *b = ((t->c_lflag & ECHO) == ECHO);
+      return 1;
+#else
+      return 0;
+#endif
+    case lechoe:
+#if defined(ECHOE)
+      *b = ((t->c_lflag & ECHOE) == ECHOE);
+      return 1;
+#else
+      return 0;
+#endif
+    case lechok:
+#if defined(ECHOK)
+      *b = ((t->c_lflag & ECHOK) == ECHOK);
+      return 1;
+#else
+      return 0;
+#endif
+    case lechonl:
+#if defined(ECHONL)
+      *b = ((t->c_lflag & ECHONL) == ECHONL);
+      return 1;
+#else
+      return 0;
+#endif
+    case lnoflsh:
+#if defined(NOFLSH)
+      *b = ((t->c_lflag & NOFLSH) == NOFLSH);
+      return 1;
+#else
+      return 0;
+#endif
+    case ltopstop:
+#if defined(TOSTOP)
+      *b = ((t->c_lflag & TOSTOP) == TOSTOP);
+      return 1;
+#else
+      return 0;
+#endif
+    case lechoctl:
+#if defined(ECHOCTL)
+      *b = ((t->c_lflag & ECHOCTL) == ECHOCTL);
+      return 1;
+#else
+      return 0;
+#endif
+    case lechoprt:
+#if defined(ECHOPRT)
+      *b = ((t->c_lflag & ECHOPRT) == ECHOPRT);
+      return 1;
+#else
+      return 0;
+#endif
+    case lechoke:
+#if defined(ECHOKE)
+      *b = ((t->c_lflag & ECHOKE) == ECHOKE);
+      return 1;
+#else
+      return 0;
+#endif
+    case lflusho:
+#if defined(FLUSHO)
+      *b = ((t->c_lflag & FLUSHO) == FLUSHO);
+      return 1;
+#else
+      return 0;
+#endif
+    case lpendin:
+#if defined(PENDIN)
+      *b = ((t->c_lflag & PENDIN) == PENDIN);
+      return 1;
+#else
+      return 0;
+#endif
+    case liexten:
+#if defined(IEXTEN)
+      *b = ((t->c_lflag & IEXTEN) == IEXTEN);
+      return 1;
+#else
+      return 0;
+#endif
+    }
+  return 0;
+}
+
+/* SetFlag - sets a flag value in, t, to, b, and returns TRUE if this
+   flag value is supported.  */
+
+int
+EXPORT (SetFlag) (struct termios *t, Flag f, int b)
+{
+  switch (f)
+    {
+    case ignbrk:
+#if defined(IGNBRK)
+      return doSetUnset (&t->c_iflag, IGNBRK, b);
+#else
+      return 0;
+#endif
+    case ibrkint:
+#if defined(BRKINT)
+      return doSetUnset (&t->c_iflag, BRKINT, b);
+#else
+      return 0;
+#endif
+    case ignpar:
+#if defined(IGNPAR)
+      return doSetUnset (&t->c_iflag, IGNPAR, b);
+#else
+      return 0;
+#endif
+    case iparmrk:
+#if defined(PARMRK)
+      return doSetUnset (&t->c_iflag, PARMRK, b);
+#else
+      return 0;
+#endif
+    case inpck:
+#if defined(INPCK)
+      return doSetUnset (&t->c_iflag, INPCK, b);
+#else
+      return 0;
+#endif
+    case istrip:
+#if defined(ISTRIP)
+      return doSetUnset (&t->c_iflag, ISTRIP, b);
+#else
+      return 0;
+#endif
+    case inlcr:
+#if defined(INLCR)
+      return doSetUnset (&t->c_iflag, INLCR, b);
+#else
+      return 0;
+#endif
+    case igncr:
+#if defined(IGNCR)
+      return doSetUnset (&t->c_iflag, IGNCR, b);
+#else
+      return 0;
+#endif
+    case icrnl:
+#if defined(ICRNL)
+      return doSetUnset (&t->c_iflag, ICRNL, b);
+#else
+      return 0;
+#endif
+    case iuclc:
+#if defined(IUCLC)
+      return doSetUnset (&t->c_iflag, IUCLC, b);
+#else
+      return 0;
+#endif
+    case ixon:
+#if defined(IXON)
+      return doSetUnset (&t->c_iflag, IXON, b);
+#else
+      return 0;
+#endif
+    case ixany:
+#if defined(IXANY)
+      return doSetUnset (&t->c_iflag, IXANY, b);
+#else
+      return 0;
+#endif
+    case ixoff:
+#if defined(IXOFF)
+      return doSetUnset (&t->c_iflag, IXOFF, b);
+#else
+      return 0;
+#endif
+    case imaxbel:
+#if defined(IMAXBEL)
+      return doSetUnset (&t->c_iflag, IMAXBEL, b);
+#else
+      return 0;
+#endif
+    case opost:
+#if defined(OPOST)
+      return doSetUnset (&t->c_oflag, OPOST, b);
+#else
+      return 0;
+#endif
+    case olcuc:
+#if defined(OLCUC)
+      return doSetUnset (&t->c_oflag, OLCUC, b);
+#else
+      return 0;
+#endif
+    case onlcr:
+#if defined(ONLCR)
+      return doSetUnset (&t->c_oflag, ONLCR, b);
+#else
+      return 0;
+#endif
+    case ocrnl:
+#if defined(OCRNL)
+      return doSetUnset (&t->c_oflag, OCRNL, b);
+#else
+      return 0;
+#endif
+    case onocr:
+#if defined(ONOCR)
+      return doSetUnset (&t->c_oflag, ONOCR, b);
+#else
+      return 0;
+#endif
+    case onlret:
+#if defined(ONLRET)
+      return doSetUnset (&t->c_oflag, ONLRET, b);
+#else
+      return 0;
+#endif
+    case ofill:
+#if defined(OFILL)
+      return doSetUnset (&t->c_oflag, OFILL, b);
+#else
+      return 0;
+#endif
+    case ofdel:
+#if defined(OFDEL)
+      return doSetUnset (&t->c_oflag, OFDEL, b);
+#else
+      return 0;
+#endif
+    case onl0:
+#if defined(NL0)
+      return doSetUnset (&t->c_oflag, NL0, b);
+#else
+      return 0;
+#endif
+    case onl1:
+#if defined(NL1)
+      return doSetUnset (&t->c_oflag, NL1, b);
+#else
+      return 0;
+#endif
+    case ocr0:
+#if defined(CR0)
+      return doSetUnset (&t->c_oflag, CR0, b);
+#else
+      return 0;
+#endif
+    case ocr1:
+#if defined(CR1)
+      return doSetUnset (&t->c_oflag, CR1, b);
+#else
+      return 0;
+#endif
+    case ocr2:
+#if defined(CR2)
+      return doSetUnset (&t->c_oflag, CR2, b);
+#else
+      return 0;
+#endif
+    case ocr3:
+#if defined(CR3)
+      return doSetUnset (&t->c_oflag, CR3, b);
+#else
+      return 0;
+#endif
+    case otab0:
+#if defined(TAB0)
+      return doSetUnset (&t->c_oflag, TAB0, b);
+#else
+      return 0;
+#endif
+    case otab1:
+#if defined(TAB1)
+      return doSetUnset (&t->c_oflag, TAB1, b);
+#else
+      return 0;
+#endif
+    case otab2:
+#if defined(TAB2)
+      return doSetUnset (&t->c_oflag, TAB2, b);
+#else
+      return 0;
+#endif
+    case otab3:
+#if defined(TAB3)
+      return doSetUnset (&t->c_oflag, TAB3, b);
+#else
+      return 0;
+#endif
+    case obs0:
+#if defined(BS0)
+      return doSetUnset (&t->c_oflag, BS0, b);
+#else
+      return 0;
+#endif
+    case obs1:
+#if defined(BS1)
+      return doSetUnset (&t->c_oflag, BS1, b);
+#else
+      return 0;
+#endif
+    case off0:
+#if defined(FF0)
+      return doSetUnset (&t->c_oflag, FF0, b);
+#else
+      return 0;
+#endif
+    case off1:
+#if defined(FF1)
+      return doSetUnset (&t->c_oflag, FF1, b);
+#else
+      return 0;
+#endif
+    case ovt0:
+#if defined(VT0)
+      return doSetUnset (&t->c_oflag, VT0, b);
+#else
+      return 0;
+#endif
+    case ovt1:
+#if defined(VT1)
+      return doSetUnset (&t->c_oflag, VT1, b);
+#else
+      return 0;
+#endif
+    case b0:
+#if defined(B0)
+      return doSetUnset (&t->c_cflag, B0, b);
+#else
+      return 0;
+#endif
+    case b50:
+#if defined(B50)
+      return doSetUnset (&t->c_cflag, B50, b);
+#else
+      return 0;
+#endif
+    case b75:
+#if defined(B75)
+      return doSetUnset (&t->c_cflag, B75, b);
+#else
+      return 0;
+#endif
+    case b110:
+#if defined(B110)
+      return doSetUnset (&t->c_cflag, B110, b);
+#else
+      return 0;
+#endif
+    case b135:
+#if defined(B134)
+      return doSetUnset (&t->c_cflag, B134, b);
+#else
+      return 0;
+#endif
+    case b150:
+#if defined(B150)
+      return doSetUnset (&t->c_cflag, B150, b);
+#else
+      return 0;
+#endif
+    case b200:
+#if defined(B200)
+      return doSetUnset (&t->c_cflag, B200, b);
+#else
+      return 0;
+#endif
+    case b300:
+#if defined(B300)
+      return doSetUnset (&t->c_cflag, B300, b);
+#else
+      return 0;
+#endif
+    case b600:
+#if defined(B600)
+      return doSetUnset (&t->c_cflag, B600, b);
+#else
+      return 0;
+#endif
+    case b1200:
+#if defined(B1200)
+      return doSetUnset (&t->c_cflag, B1200, b);
+#else
+      return 0;
+#endif
+    case b1800:
+#if defined(B1800)
+      return doSetUnset (&t->c_cflag, B1800, b);
+#else
+      return 0;
+#endif
+    case b2400:
+#if defined(B2400)
+      return doSetUnset (&t->c_cflag, B2400, b);
+#else
+      return 0;
+#endif
+    case b4800:
+#if defined(B4800)
+      return doSetUnset (&t->c_cflag, B4800, b);
+#else
+      return 0;
+#endif
+    case b9600:
+#if defined(B9600)
+      return doSetUnset (&t->c_cflag, B9600, b);
+#else
+      return 0;
+#endif
+    case b19200:
+#if defined(B19200)
+      return doSetUnset (&t->c_cflag, B19200, b);
+#else
+      return 0;
+#endif
+    case b38400:
+#if defined(B38400)
+      return doSetUnset (&t->c_cflag, B38400, b);
+#else
+      return 0;
+#endif
+    case b57600:
+#if defined(B57600)
+      return doSetUnset (&t->c_cflag, B57600, b);
+#else
+      return 0;
+#endif
+    case b115200:
+#if defined(B115200)
+      return doSetUnset (&t->c_cflag, B115200, b);
+#else
+      return 0;
+#endif
+    case b240400:
+#if defined(B230400)
+      return doSetUnset (&t->c_cflag, B230400, b);
+#else
+      return 0;
+#endif
+    case b460800:
+#if defined(B460800)
+      return doSetUnset (&t->c_cflag, B460800, b);
+#else
+      return 0;
+#endif
+    case b500000:
+#if defined(B500000)
+      return doSetUnset (&t->c_cflag, B500000, b);
+#else
+      return 0;
+#endif
+    case b576000:
+#if defined(B576000)
+      return doSetUnset (&t->c_cflag, B576000, b);
+#else
+      return 0;
+#endif
+    case b921600:
+#if defined(B921600)
+      return doSetUnset (&t->c_cflag, B921600, b);
+#else
+      return 0;
+#endif
+    case b1000000:
+#if defined(B1000000)
+      return doSetUnset (&t->c_cflag, B1000000, b);
+#else
+      return 0;
+#endif
+    case b1152000:
+#if defined(B1152000)
+      return doSetUnset (&t->c_cflag, B1152000, b);
+#else
+      return 0;
+#endif
+    case b1500000:
+#if defined(B1500000)
+      return doSetUnset (&t->c_cflag, B1500000, b);
+#else
+      return 0;
+#endif
+    case b2000000:
+#if defined(B2000000)
+      return doSetUnset (&t->c_cflag, B2000000, b);
+#else
+      return 0;
+#endif
+    case b2500000:
+#if defined(B2500000)
+      return doSetUnset (&t->c_cflag, B2500000, b);
+#else
+      return 0;
+#endif
+    case b3000000:
+#if defined(B3000000)
+      return doSetUnset (&t->c_cflag, B3000000, b);
+#else
+      return 0;
+#endif
+    case b3500000:
+#if defined(B3500000)
+      return doSetUnset (&t->c_cflag, B3500000, b);
+#else
+      return 0;
+#endif
+    case b4000000:
+#if defined(B4000000)
+      return doSetUnset (&t->c_cflag, B4000000, b);
+#else
+      return 0;
+#endif
+    case maxbaud:
+#if defined(__MAX_BAUD)
+      return doSetUnset (&t->c_cflag, __MAX_BAUD, b);
+#else
+      return 0;
+#endif
+    case crtscts:
+#if defined(CRTSCTS)
+      return doSetUnset (&t->c_cflag, CRTSCTS, b);
+#else
+      return 0;
+#endif
+    case cs5:
+#if defined(CS5)
+      return doSetUnset (&t->c_cflag, CS5, b);
+#else
+      return 0;
+#endif
+    case cs6:
+#if defined(CS6)
+      return doSetUnset (&t->c_cflag, CS6, b);
+#else
+      return 0;
+#endif
+    case cs7:
+#if defined(CS7)
+      return doSetUnset (&t->c_cflag, CS7, b);
+#else
+      return 0;
+#endif
+    case cs8:
+#if defined(CS8)
+      return doSetUnset (&t->c_cflag, CS8, b);
+#else
+      return 0;
+#endif
+    case cstopb:
+#if defined(CSTOPB)
+      return doSetUnset (&t->c_cflag, CSTOPB, b);
+#else
+      return 0;
+#endif
+    case cread:
+#if defined(CREAD)
+      return doSetUnset (&t->c_cflag, CREAD, b);
+#else
+      return 0;
+#endif
+    case parenb:
+#if defined(PARENB)
+      return doSetUnset (&t->c_cflag, PARENB, b);
+#else
+      return 0;
+#endif
+    case parodd:
+#if defined(PARODD)
+      return doSetUnset (&t->c_cflag, PARODD, b);
+#else
+      return 0;
+#endif
+    case hupcl:
+#if defined(HUPCL)
+      return doSetUnset (&t->c_cflag, HUPCL, b);
+#else
+      return 0;
+#endif
+    case clocal:
+#if defined(CLOCAL)
+      return doSetUnset (&t->c_cflag, CLOCAL, b);
+#else
+      return 0;
+#endif
+    case lisig:
+#if defined(ISIG)
+      return doSetUnset (&t->c_lflag, ISIG, b);
+#else
+      return 0;
+#endif
+    case licanon:
+#if defined(ICANON)
+      return doSetUnset (&t->c_lflag, ICANON, b);
+#else
+      return 0;
+#endif
+    case lxcase:
+#if defined(XCASE)
+      return doSetUnset (&t->c_lflag, XCASE, b);
+#else
+      return 0;
+#endif
+    case lecho:
+#if defined(ECHO)
+      return doSetUnset (&t->c_lflag, ECHO, b);
+#else
+      return 0;
+#endif
+    case lechoe:
+#if defined(ECHOE)
+      return doSetUnset (&t->c_lflag, ECHOE, b);
+#else
+      return 0;
+#endif
+    case lechok:
+#if defined(ECHOK)
+      return doSetUnset (&t->c_lflag, ECHOK, b);
+#else
+      return 0;
+#endif
+    case lechonl:
+#if defined(ECHONL)
+      return doSetUnset (&t->c_lflag, ECHONL, b);
+#else
+      return 0;
+#endif
+    case lnoflsh:
+#if defined(NOFLSH)
+      return doSetUnset (&t->c_lflag, NOFLSH, b);
+#else
+      return 0;
+#endif
+    case ltopstop:
+#if defined(TOSTOP)
+      return doSetUnset (&t->c_lflag, TOSTOP, b);
+#else
+      return 0;
+#endif
+    case lechoctl:
+#if defined(ECHOCTL)
+      return doSetUnset (&t->c_lflag, ECHOCTL, b);
+#else
+      return 0;
+#endif
+    case lechoprt:
+#if defined(ECHOPRT)
+      return doSetUnset (&t->c_lflag, ECHOPRT, b);
+#else
+      return 0;
+#endif
+    case lechoke:
+#if defined(ECHOKE)
+      return doSetUnset (&t->c_lflag, ECHOKE, b);
+#else
+      return 0;
+#endif
+    case lflusho:
+#if defined(FLUSHO)
+      return doSetUnset (&t->c_lflag, FLUSHO, b);
+#else
+      return 0;
+#endif
+    case lpendin:
+#if defined(PENDIN)
+      return doSetUnset (&t->c_lflag, PENDIN, b);
+#else
+      return 0;
+#endif
+    case liexten:
+#if defined(IEXTEN)
+      return doSetUnset (&t->c_lflag, IEXTEN, b);
+#else
+      return 0;
+#endif
+    }
+  return 0;
+}
+
+/* GetChar - sets a CHAR, ch, value from, t, and returns TRUE if this
+   value is supported.  */
+
+int
+EXPORT (GetChar) (struct termios *t, ControlChar c, char *ch)
+{
+  switch (c)
+    {
+
+    case vintr:
+#if defined(VINTR)
+      *ch = t->c_cc[VINTR];
+      return 1;
+#else
+      return 0;
+#endif
+    case vquit:
+#if defined(VQUIT)
+      *ch = t->c_cc[VQUIT];
+      return 1;
+#else
+      return 0;
+#endif
+    case verase:
+#if defined(VERASE)
+      *ch = t->c_cc[VERASE];
+      return 1;
+#else
+      return 0;
+#endif
+    case vkill:
+#if defined(VKILL)
+      *ch = t->c_cc[VKILL];
+      return 1;
+#else
+      return 0;
+#endif
+    case veof:
+#if defined(VEOF)
+      *ch = t->c_cc[VEOF];
+      return 1;
+#else
+      return 0;
+#endif
+    case vtime:
+#if defined(VTIME)
+      *ch = t->c_cc[VTIME];
+      return 1;
+#else
+      return 0;
+#endif
+    case vmin:
+#if defined(VMIN)
+      *ch = t->c_cc[VMIN];
+      return 1;
+#else
+      return 0;
+#endif
+    case vswtc:
+#if defined(VSWTC)
+      *ch = t->c_cc[VSWTC];
+      return 1;
+#else
+      return 0;
+#endif
+    case vstart:
+#if defined(VSTART)
+      *ch = t->c_cc[VSTART];
+      return 1;
+#else
+      return 0;
+#endif
+    case vstop:
+#if defined(VSTOP)
+      *ch = t->c_cc[VSTOP];
+      return 1;
+#else
+      return 0;
+#endif
+    case vsusp:
+#if defined(VSUSP)
+      *ch = t->c_cc[VSUSP];
+      return 1;
+#else
+      return 0;
+#endif
+    case veol:
+#if defined(VEOL)
+      *ch = t->c_cc[VEOL];
+      return 1;
+#else
+      return 0;
+#endif
+    case vreprint:
+#if defined(VREPRINT)
+      *ch = t->c_cc[VREPRINT];
+      return 1;
+#else
+      return 0;
+#endif
+    case vdiscard:
+#if defined(VDISCARD)
+      *ch = t->c_cc[VDISCARD];
+      return 1;
+#else
+      return 0;
+#endif
+    case vwerase:
+#if defined(VWERASE)
+      *ch = t->c_cc[VWERASE];
+      return 1;
+#else
+      return 0;
+#endif
+    case vlnext:
+#if defined(VLNEXT)
+      *ch = t->c_cc[VLNEXT];
+      return 1;
+#else
+      return 0;
+#endif
+    case veol2:
+#if defined(VEOL2)
+      *ch = t->c_cc[VEOL2];
+      return 1;
+#else
+      return 0;
+#endif
+    default:
+      return 0;
+    }
+}
+
+/* SetChar - sets a CHAR value in, t, and returns TRUE if, c, is
+   supported.  */
+
+int
+EXPORT (SetChar) (struct termios *t, ControlChar c, char ch)
+{
+  switch (c)
+    {
+
+    case vintr:
+#if defined(VINTR)
+      t->c_cc[VINTR] = ch;
+      return 1;
+#else
+      return 0;
+#endif
+    case vquit:
+#if defined(VQUIT)
+      t->c_cc[VQUIT] = ch;
+      return 1;
+#else
+      return 0;
+#endif
+    case verase:
+#if defined(VERASE)
+      t->c_cc[VERASE] = ch;
+      return 1;
+#else
+      return 0;
+#endif
+    case vkill:
+#if defined(VKILL)
+      t->c_cc[VKILL] = ch;
+      return 1;
+#else
+      return 0;
+#endif
+    case veof:
+#if defined(VEOF)
+      t->c_cc[VEOF] = ch;
+      return 1;
+#else
+      return 0;
+#endif
+    case vtime:
+#if defined(VTIME)
+      t->c_cc[VTIME] = ch;
+      return 1;
+#else
+      return 0;
+#endif
+    case vmin:
+#if defined(VMIN)
+      t->c_cc[VMIN] = ch;
+      return 1;
+#else
+      return 0;
+#endif
+    case vswtc:
+#if defined(VSWTC)
+      t->c_cc[VSWTC] = ch;
+      return 1;
+#else
+      return 0;
+#endif
+    case vstart:
+#if defined(VSTART)
+      t->c_cc[VSTART] = ch;
+      return 1;
+#else
+      return 0;
+#endif
+    case vstop:
+#if defined(VSTOP)
+      t->c_cc[VSTOP] = ch;
+      return 1;
+#else
+      return 0;
+#endif
+    case vsusp:
+#if defined(VSUSP)
+      t->c_cc[VSUSP] = ch;
+      return 1;
+#else
+      return 0;
+#endif
+    case veol:
+#if defined(VEOL)
+      t->c_cc[VEOL] = ch;
+      return 1;
+#else
+      return 0;
+#endif
+    case vreprint:
+#if defined(VREPRINT)
+      t->c_cc[VREPRINT] = ch;
+      return 1;
+#else
+      return 0;
+#endif
+    case vdiscard:
+#if defined(VDISCARD)
+      t->c_cc[VDISCARD] = ch;
+      return 1;
+#else
+      return 0;
+#endif
+    case vwerase:
+#if defined(VWERASE)
+      t->c_cc[VWERASE] = ch;
+      return 1;
+#else
+      return 0;
+#endif
+    case vlnext:
+#if defined(VLNEXT)
+      t->c_cc[VLNEXT] = ch;
+      return 1;
+#else
+      return 0;
+#endif
+    case veol2:
+#if defined(VEOL2)
+      t->c_cc[VEOL2] = ch;
+      return 1;
+#else
+      return 0;
+#endif
+    default:
+      return 0;
+    }
+}
+
+void
+_M2_termios_init (void)
+{
+}
+
+void
+_M2_termios_finish (void)
+{
+}
+
+#ifdef __cplusplus
+}
+#endif