[bpt/emacs.git] / src / systty.h

/* systty.h - System-dependent definitions for terminals.
   Copyright (C) 1992 Free Software Foundation, Inc.

This file is part of GNU Emacs.

GNU Emacs 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 1, or (at your option)
any later version.

GNU Emacs 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 Emacs; see the file COPYING.  If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */

\f
/* Include the proper files.  */
#ifdef HAVE_TERMIO
#include <termio.h>
#include <fcntl.h>
#else
#ifdef HAVE_TERMIOS
#include <termio.h>
#include <termios.h>
#include <fcntl.h>
#else /* neither HAVE_TERMIO nor HAVE_TERMIOS */
#ifndef VMS
#include <sgtty.h>
#else /* VMS */
#include <descrip.h>
static struct iosb
{
  short status;
  short offset;
  short termlen;
  short term;
} input_iosb;

extern int waiting_for_ast;
extern int stop_input;
extern int input_ef = 0;
extern int timer_ef = 0;
extern int process_ef = 0;
extern int input_eflist;
extern int timer_eflist;

static $DESCRIPTOR (input_dsc, "TT");
static int terminator_mask[2] = { 0, 0 };

static struct sensemode {
  short status;
  unsigned char xmit_baud;
  unsigned char rcv_baud;
  unsigned char crfill;
  unsigned char lffill;
  unsigned char parity;
  unsigned char unused;
  char class;
  char type;
  short scr_wid;
  unsigned long tt_char : 24, scr_len : 8;
  unsigned long tt2_char;
} sensemode_iosb;
#endif /* VMS */
#endif /* not HAVE_TERMIOS */
#endif /* not HAVE_TERMIO */

#ifdef AIX
/* Get files for keyboard remapping */
#define HFNKEYS 2
#include <sys/hft.h>
#include <sys/devinfo.h>
#endif

/* Get rid of LLITOUT in 4.1, since it is said to stimulate kernel bugs.  */
#ifdef BSD4_1
#undef LLITOUT
#define LLITOUT 0
#endif /* 4.1 */

#ifdef NEED_BSDTTY
#include <sys/bsdtty.h>
#endif 

#if defined (HPUX) && defined (HAVE_PTYS)
#include <sys/ptyio.h>
#endif
  
#ifdef AIX
#include <sys/pty.h>
#include <unistd.h>
#endif /* AIX */

#ifdef SYSV_PTYS
#include <sys/tty.h>
#ifdef titan
#include <sys/ttyhw.h>
#include <sys/stream.h>
#endif
#include <sys/pty.h>
#endif

/* saka@pfu.fujitsu.co.JP writes:
   FASYNC defined in this file. But, FASYNC don't working.
   so no problem, because unrequest_sigio only need. */
#if defined (pfa)
#include <sys/file.h>
#endif

\f
/* Special cases - inhibiting the use of certain features.  */

#ifdef APOLLO
#undef TIOCSTART
#endif

#ifdef XENIX
#undef TIOCGETC  /* Avoid confusing some conditionals that test this.  */
#endif

#ifdef BROKEN_TIOCGETC
#undef TIOCGETC  /* Avoid confusing some conditionals that test this.  */
#endif

/* UNIPLUS systems may have FIONREAD.  */
#ifdef UNIPLUS
#include <sys.ioctl.h>
#endif

/* Allow m- file to inhibit use of FIONREAD.  */
#ifdef BROKEN_FIONREAD
#undef FIONREAD
#undef ASYNC
#endif

/* Interupt input is not used if there is no FIONREAD.  */
#ifndef FIONREAD
#undef SIGIO
#endif

\f
/* Try to establish the correct character to disable terminal functions
   in a system-independent manner.  Note that USG (at least) define
   _POSIX_VDISABLE as 0!  */

#ifdef _POSIX_VDISABLE
#define CDISABLE _POSIX_VDISABLE
#else /* not _POSIX_VDISABLE */
#ifdef CDEL
#define CDISABLE CDEL
#else /* not CDEL */
#define CDISABLE 255
#endif /* not CDEL */
#endif /* not _POSIX_VDISABLE */
\f
/* Get the number of characters queued for output.  */

/* EMACS_OUTQSIZE(FD, int *SIZE) stores the number of characters
   queued for output to the terminal FD in *SIZE, if FD is a tty.
   Returns -1 if there was an error (i.e. FD is not a tty), 0
   otherwise.  */
#ifdef TIOCOUTQ
#define EMACS_OUTQSIZE(fd, size) (ioctl ((fd), TIOCOUTQ, (size)))
#endif

#ifdef HAVE_TERMIO
#ifdef TCOUTQ
#undef EMACS_OUTQSIZE
#define EMACS_OUTQSIZE(fd, size) (ioctl ((fd), TCOUTQ, (size)))
#endif
#endif

\f
/* Manipulate a terminal's current process group.  */

/* EMACS_HAVE_TTY_PGRP is true if we can get and set the tty's current
   controlling process group.

   EMACS_GET_TTY_PGRP(int FD, int *PGID) sets *PGID the terminal FD's
   current process group.  Return -1 if there is an error.

   EMACS_SET_TTY_PGRP(int FD, int *PGID) sets the terminal FD's
   current process group to *PGID.  Return -1 if there is an error.  */

#ifdef HPUX
/* HPUX tty process group stuff doesn't work, says the anonymous voice
   from the past.  */
#else
#ifdef TIOCGPGRP
#define EMACS_HAVE_TTY_PGRP
#else
#ifdef HAVE_TERMIOS
#define EMACS_HAVE_TTY_PGRP
#endif
#endif
#endif

#ifdef EMACS_HAVE_TTY_PGRP

#ifdef HAVE_TERMIOS

#define EMACS_GET_TTY_PGRP(fd, pgid) (*(pgid) = tcgetpgrp ((fd)))
#define EMACS_SET_TTY_PGRP(fd, pgid) (*(pgid) = tcsetpgrp ((fd)))

#else
#ifdef TIOCSPGRP

#define EMACS_GET_TTY_PGRP(fd, pgid) (ioctl ((fd), TIOCGPGRP, (pgid)))
#define EMACS_SET_TTY_PGRP(fd, pgid) (ioctl ((fd), TIOCSPGRP, (pgid)))

#endif
#endif

#else

/* Just ignore this for now and hope for the best */
#define EMACS_GET_TTY_PGRP(fd, pgid) 0
#define EMACS_SET_TTY_PGRP(fd, pgif) 0

#endif

\f
/* Manipulate a TTY's input/output processing parameters.  */

/* struct emacs_tty is a structure used to hold the current tty
   parameters.  If the terminal has several structures describing its
   state, for example a struct tchars, a struct sgttyb, a struct
   tchars, a struct ltchars, and a struct pagechars, struct
   emacs_tty should contain an element for each parameter struct
   that Emacs may change.

   EMACS_GET_TTY (int FD, struct emacs_tty *P) stores the
   parameters of the tty on FD in *P.

   EMACS_SET_TTY (int FD, struct emacs_tty *P, int waitp)
   sets the parameters of the tty on FD according to the contents of
   *P.  If waitp is non-zero, we wait for all queued output to be
   written before making the change; otherwise, we forget any queued
   input and make the change immediately.

   EMACS_TTY_TABS_OK (struct emacs_tty *P) is false iff the kernel
   expands tabs to spaces upon output; in that case, there is no
   advantage to using tabs over spaces.  */


/* For each tty parameter structure that Emacs might want to save and restore,
   - include an element for it in this structure,
   - define a pair of numbered macros to get and set it and return 
     true iff the call succeeded,
   - give alternative definitions for when the component is not implemented
     which always succeed, and
   - extend the definition of EMACS_{GET,SET}_TTY_CHARS to include the
     new macros.  */

struct emacs_tty {

/* There is always one of the following elements, so there is no need
   for dummy get and set definitions.  */
#ifdef HAVE_TERMIOS
  struct termios main;
#else
#ifdef HAVE_TERMIO
  struct termio main;
#else
#ifdef VMS
  struct sensemode main;
#else
  struct sgttyb main;
#endif
#endif
#endif

#ifdef HAVE_TERMIOS
#define HAVE_TCATTR
#endif

#ifdef HAVE_TCATTR

#define EMACS_GET_TTY_1(fd, p) (tcgetattr ((fd), &(p)->main) != -1)
#define EMACS_SET_TTY_1(fd, p, waitp) \
  (tcsetattr ((fd), (waitp) ? TCSAFLUSH : TCSADRAIN, &(p)->main) != -1)

#else
#ifdef HAVE_TERMIO

#define EMACS_GET_TTY_1(fd, p) (ioctl ((fd), TCGETA, &(p)->main) != -1)
#define EMACS_SET_TTY_1(fd, p, waitp)			\
  (ioctl ((fd), (waitp) ? TCSETAW : TCSETAF, &(p)->main) != -1)

#else
#ifdef VMS

/* These definitions will really only work in sysdep.c, because of their
   use of input_iosb.  I don't know enough about VMS QIO to fix this.  */
#define EMACS_GET_TTY_1(fd, p)					\
  (1 & SYS$QIOW (0, (fd), IO$_SENSEMODE, (p), 0, 0,		\
	    &(p)->main.class, 12, 0, 0, 0, 0))
#define EMACS_SET_TTY_1(fd, p, waitp)				\
  (1 & SYS$QIOW (0, (fd), IO$_SETMODE, &input_iosb, 0, 0,	\
	    &(p)->main.class, 12, 0, 0, 0, 0))

#else

#define EMACS_GET_TTY_1(fd, p) (ioctl ((fd), TIOCGETP, &(p)->main) != -1)
#define EMACS_SET_TTY_1(fd, p, waitp)			\
  (ioctl ((fd), (waitp) ? TIOCSETP : TIOCSETN, &(p)->main) != -1)

#endif
#endif
#endif

#ifdef TIOCGLTC
  struct ltchars ltchars;
#define EMACS_GET_TTY_2(fd, p)				\
  (ioctl ((fd), TIOCGLTC, &(p)->ltchars) != -1)
#define EMACS_SET_TTY_2(fd, p, waitp)			\
  (ioctl ((fd), TIOCSLTC, &(p)->ltchars) != -1)
#else
#define EMACS_GET_TTY_2(fd, p) 1
#define EMACS_SET_TTY_2(fd, p, waitp) 1
#endif /* TIOCGLTC */

#ifdef TIOCGETC
  struct tchars tchars;
  int lmode;
#define EMACS_GET_TTY_3(fd, p)				\
  (ioctl ((fd), TIOCGETC, &(p)->tchars) != -1		\
   && ioctl ((fd), TIOCLGET, &(p)->lmode) != -1)
#define EMACS_SET_TTY_3(fd, p, waitp)			\
  (ioctl ((fd), TIOCSETC, &(p)->tchars) != -1		\
   && ioctl ((fd), TIOCLSET, &(p)->lmode) != -1)
#else
#define EMACS_GET_TTY_3(fd, p) 1
#define EMACS_SET_TTY_3(fd, p, waitp) 1
#endif /* TIOCGLTC */

};

/* Define these to be a concatenation of all the EMACS_{GET,SET}_TTY_n
   macros.  */
#define EMACS_GET_TTY(fd, tc)	\
  (EMACS_GET_TTY_1 (fd, tc)	\
   && EMACS_GET_TTY_2 (fd, tc)	\
   && EMACS_GET_TTY_3 (fd, tc))

#define EMACS_SET_TTY(fd, tc, waitp)	\
  (EMACS_SET_TTY_1 (fd, tc, waitp)	\
   && EMACS_SET_TTY_2 (fd, tc, waitp)	\
   && EMACS_SET_TTY_3 (fd, tc, waitp))


#ifdef HAVE_TERMIOS

#define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3)

#else /* not def HAVE_TERMIOS */
#ifdef HAVE_TERMIO

#define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3)

#else /* neither HAVE_TERMIO nor HAVE_TERMIOS */
#ifdef VMS

#define EMACS_TTY_TABS_OK(p) (((p)->main.tt_char & TT$M_MECHTAB) != 0)

#else

#define EMACS_TTY_TABS_OK(p) (((p)->main.sg_flags & XTABS) != XTABS)

#endif /* not def VMS */
#endif /* not def HAVE_TERMIO */
#endif /* not def HAVE_TERMIOS */
Commit	Line	Data
a04c9535	1	/* systty.h - System-dependent definitions for terminals.
d0d6b7c5 JB	2	Copyright (C) 1992 Free Software Foundation, Inc.
	3
	4	This file is part of GNU Emacs.
	5
	6	GNU Emacs is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
	8	the Free Software Foundation; either version 1, or (at your option)
	9	any later version.
	10
	11	GNU Emacs is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
	15
	16	You should have received a copy of the GNU General Public License
	17	along with GNU Emacs; see the file COPYING. If not, write to
	18	the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
	19
	20	\f
	21	/* Include the proper files. */
	22	#ifdef HAVE_TERMIO
	23	#include <termio.h>
	24	#include <fcntl.h>
	25	#else
	26	#ifdef HAVE_TERMIOS
	27	#include <termio.h>
	28	#include <termios.h>
1aaaff21	29	#include <fcntl.h>
d0d6b7c5 JB	30	#else /* neither HAVE_TERMIO nor HAVE_TERMIOS */
	31	#ifndef VMS
	32	#include <sgtty.h>
a04c9535 JB	33	#else /* VMS */
	34	#include <descrip.h>
	35	static struct iosb
	36	{
	37	short status;
	38	short offset;
	39	short termlen;
	40	short term;
	41	} input_iosb;
	42
	43	extern int waiting_for_ast;
	44	extern int stop_input;
	45	extern int input_ef = 0;
	46	extern int timer_ef = 0;
	47	extern int process_ef = 0;
	48	extern int input_eflist;
	49	extern int timer_eflist;
	50
	51	static $DESCRIPTOR (input_dsc, "TT");
	52	static int terminator_mask[2] = { 0, 0 };
	53
	54	static struct sensemode {
	55	short status;
	56	unsigned char xmit_baud;
	57	unsigned char rcv_baud;
	58	unsigned char crfill;
	59	unsigned char lffill;
	60	unsigned char parity;
	61	unsigned char unused;
	62	char class;
	63	char type;
	64	short scr_wid;
	65	unsigned long tt_char : 24, scr_len : 8;
	66	unsigned long tt2_char;
	67	} sensemode_iosb;
	68	#endif /* VMS */
d0d6b7c5 JB	69	#endif /* not HAVE_TERMIOS */
	70	#endif /* not HAVE_TERMIO */
	71
4746118a JB	72	#ifdef AIX
	73	/* Get files for keyboard remapping */
	74	#define HFNKEYS 2
	75	#include <sys/hft.h>
	76	#include <sys/devinfo.h>
	77	#endif
	78
	79	/* Get rid of LLITOUT in 4.1, since it is said to stimulate kernel bugs. */
	80	#ifdef BSD4_1
	81	#undef LLITOUT
	82	#define LLITOUT 0
	83	#endif /* 4.1 */
	84
	85	#ifdef NEED_BSDTTY
	86	#include <sys/bsdtty.h>
	87	#endif
	88
	89	#if defined (HPUX) && defined (HAVE_PTYS)
	90	#include <sys/ptyio.h>
	91	#endif
	92
	93	#ifdef AIX
	94	#include <sys/pty.h>
	95	#include <unistd.h>
	96	#endif /* AIX */
	97
	98	#ifdef SYSV_PTYS
	99	#include <sys/tty.h>
ffd56f97 JB	100	#ifdef titan
	101	#include <sys/ttyhw.h>
	102	#include <sys/stream.h>
	103	#endif
4746118a JB	104	#include <sys/pty.h>
	105	#endif
	106
	107	/* saka@pfu.fujitsu.co.JP writes:
	108	FASYNC defined in this file. But, FASYNC don't working.
	109	so no problem, because unrequest_sigio only need. */
	110	#if defined (pfa)
	111	#include <sys/file.h>
	112	#endif
	113
d0d6b7c5 JB	114	\f
	115	/* Special cases - inhibiting the use of certain features. */
	116
	117	#ifdef APOLLO
	118	#undef TIOCSTART
	119	#endif
	120
ffd56f97 JB	121	#ifdef XENIX
	122	#undef TIOCGETC /* Avoid confusing some conditionals that test this. */
	123	#endif
	124
d0d6b7c5 JB	125	#ifdef BROKEN_TIOCGETC
	126	#undef TIOCGETC /* Avoid confusing some conditionals that test this. */
	127	#endif
	128
	129	/* UNIPLUS systems may have FIONREAD. */
	130	#ifdef UNIPLUS
	131	#include <sys.ioctl.h>
	132	#endif
	133
	134	/* Allow m- file to inhibit use of FIONREAD. */
	135	#ifdef BROKEN_FIONREAD
	136	#undef FIONREAD
	137	#undef ASYNC
	138	#endif
	139
	140	/* Interupt input is not used if there is no FIONREAD. */
	141	#ifndef FIONREAD
	142	#undef SIGIO
	143	#endif
	144
	145	\f
2102829e RS	146	/* Try to establish the correct character to disable terminal functions
	147	in a system-independent manner. Note that USG (at least) define
	148	_POSIX_VDISABLE as 0! */
	149
	150	#ifdef _POSIX_VDISABLE
	151	#define CDISABLE _POSIX_VDISABLE
	152	#else /* not _POSIX_VDISABLE */
	153	#ifdef CDEL
	154	#define CDISABLE CDEL
	155	#else /* not CDEL */
	156	#define CDISABLE 255
	157	#endif /* not CDEL */
	158	#endif /* not _POSIX_VDISABLE */
	159	\f
d0d6b7c5 JB	160	/* Get the number of characters queued for output. */
	161
	162	/* EMACS_OUTQSIZE(FD, int *SIZE) stores the number of characters
	163	queued for output to the terminal FD in *SIZE, if FD is a tty.
	164	Returns -1 if there was an error (i.e. FD is not a tty), 0
	165	otherwise. */
	166	#ifdef TIOCOUTQ
	167	#define EMACS_OUTQSIZE(fd, size) (ioctl ((fd), TIOCOUTQ, (size)))
	168	#endif
	169
	170	#ifdef HAVE_TERMIO
	171	#ifdef TCOUTQ
	172	#undef EMACS_OUTQSIZE
	173	#define EMACS_OUTQSIZE(fd, size) (ioctl ((fd), TCOUTQ, (size)))
	174	#endif
	175	#endif
	176
	177	\f
	178	/* Manipulate a terminal's current process group. */
	179
	180	/* EMACS_HAVE_TTY_PGRP is true if we can get and set the tty's current
	181	controlling process group.
	182
	183	EMACS_GET_TTY_PGRP(int FD, int PGID) sets PGID the terminal FD's
	184	current process group. Return -1 if there is an error.
	185
	186	EMACS_SET_TTY_PGRP(int FD, int *PGID) sets the terminal FD's
	187	current process group to PGID. Return -1 if there is an error. /
	188
ffd56f97 JB	189	#ifdef HPUX
	190	/* HPUX tty process group stuff doesn't work, says the anonymous voice
	191	from the past. */
	192	#else
d0d6b7c5 JB	193	#ifdef TIOCGPGRP
	194	#define EMACS_HAVE_TTY_PGRP
	195	#else
	196	#ifdef HAVE_TERMIOS
	197	#define EMACS_HAVE_TTY_PGRP
	198	#endif
	199	#endif
ffd56f97	200	#endif
d0d6b7c5 JB	201
	202	#ifdef EMACS_HAVE_TTY_PGRP
	203
	204	#ifdef HAVE_TERMIOS
	205
	206	#define EMACS_GET_TTY_PGRP(fd, pgid) (*(pgid) = tcgetpgrp ((fd)))
	207	#define EMACS_SET_TTY_PGRP(fd, pgid) (*(pgid) = tcsetpgrp ((fd)))
	208
	209	#else
	210	#ifdef TIOCSPGRP
	211
	212	#define EMACS_GET_TTY_PGRP(fd, pgid) (ioctl ((fd), TIOCGPGRP, (pgid)))
	213	#define EMACS_SET_TTY_PGRP(fd, pgid) (ioctl ((fd), TIOCSPGRP, (pgid)))
	214
	215	#endif
	216	#endif
	217
	218	#else
	219
	220	/* Just ignore this for now and hope for the best */
	221	#define EMACS_GET_TTY_PGRP(fd, pgid) 0
ef15f270	222	#define EMACS_SET_TTY_PGRP(fd, pgif) 0
d0d6b7c5 JB	223
	224	#endif
	225
	226	\f
	227	/* Manipulate a TTY's input/output processing parameters. */
	228
	229	/* struct emacs_tty is a structure used to hold the current tty
	230	parameters. If the terminal has several structures describing its
	231	state, for example a struct tchars, a struct sgttyb, a struct
	232	tchars, a struct ltchars, and a struct pagechars, struct
	233	emacs_tty should contain an element for each parameter struct
	234	that Emacs may change.
	235
	236	EMACS_GET_TTY (int FD, struct emacs_tty *P) stores the
	237	parameters of the tty on FD in *P.
	238
	239	EMACS_SET_TTY (int FD, struct emacs_tty *P, int waitp)
	240	sets the parameters of the tty on FD according to the contents of
	241	*P. If waitp is non-zero, we wait for all queued output to be
	242	written before making the change; otherwise, we forget any queued
	243	input and make the change immediately.
	244
	245	EMACS_TTY_TABS_OK (struct emacs_tty *P) is false iff the kernel
	246	expands tabs to spaces upon output; in that case, there is no
	247	advantage to using tabs over spaces. */
	248
	249
	250
	251	/* For each tty parameter structure that Emacs might want to save and restore,
	252	- include an element for it in this structure,
	253	- define a pair of numbered macros to get and set it and return
	254	true iff the call succeeded,
	255	- give alternative definitions for when the component is not implemented
	256	which always succeed, and
	257	- extend the definition of EMACS_{GET,SET}_TTY_CHARS to include the
	258	new macros. */
	259
	260	struct emacs_tty {
	261
	262	/* There is always one of the following elements, so there is no need
	263	for dummy get and set definitions. */
	264	#ifdef HAVE_TERMIOS
	265	struct termios main;
	266	#else
	267	#ifdef HAVE_TERMIO
	268	struct termio main;
	269	#else
	270	#ifdef VMS
	271	struct sensemode main;
	272	#else
	273	struct sgttyb main;
	274	#endif
	275	#endif
	276	#endif
	277
	278	#ifdef HAVE_TERMIOS
	279	#define HAVE_TCATTR
	280	#endif
	281
	282	#ifdef HAVE_TCATTR
	283
	284	#define EMACS_GET_TTY_1(fd, p) (tcgetattr ((fd), &(p)->main) != -1)
	285	#define EMACS_SET_TTY_1(fd, p, waitp) \
	286	(tcsetattr ((fd), (waitp) ? TCSAFLUSH : TCSADRAIN, &(p)->main) != -1)
287
4746118a JB	288	#else
	289	#ifdef HAVE_TERMIO
	290
	291	#define EMACS_GET_TTY_1(fd, p) (ioctl ((fd), TCGETA, &(p)->main) != -1)
	292	#define EMACS_SET_TTY_1(fd, p, waitp) \
	293	(ioctl ((fd), (waitp) ? TCSETAW : TCSETAF, &(p)->main) != -1)
	294
d0d6b7c5 JB	295	#else
	296	#ifdef VMS
	297
	298	/* These definitions will really only work in sysdep.c, because of their
	299	use of input_iosb. I don't know enough about VMS QIO to fix this. */
a04c9535 JB	300	#define EMACS_GET_TTY_1(fd, p) \
	301	(1 & SYS$QIOW (0, (fd), IO$_SENSEMODE, (p), 0, 0, \
	302	&(p)->main.class, 12, 0, 0, 0, 0))
	303	#define EMACS_SET_TTY_1(fd, p, waitp) \
	304	(1 & SYS$QIOW (0, (fd), IO$_SETMODE, &input_iosb, 0, 0, \
	305	&(p)->main.class, 12, 0, 0, 0, 0))
d0d6b7c5 JB	306
	307	#else
	308
	309	#define EMACS_GET_TTY_1(fd, p) (ioctl ((fd), TIOCGETP, &(p)->main) != -1)
	310	#define EMACS_SET_TTY_1(fd, p, waitp) \
	311	(ioctl ((fd), (waitp) ? TIOCSETP : TIOCSETN, &(p)->main) != -1)
	312
	313	#endif
	314	#endif
4746118a	315	#endif
d0d6b7c5 JB	316
	317	#ifdef TIOCGLTC
	318	struct ltchars ltchars;
	319	#define EMACS_GET_TTY_2(fd, p) \
	320	(ioctl ((fd), TIOCGLTC, &(p)->ltchars) != -1)
	321	#define EMACS_SET_TTY_2(fd, p, waitp) \
	322	(ioctl ((fd), TIOCSLTC, &(p)->ltchars) != -1)
	323	#else
	324	#define EMACS_GET_TTY_2(fd, p) 1
	325	#define EMACS_SET_TTY_2(fd, p, waitp) 1
	326	#endif /* TIOCGLTC */
	327
	328	#ifdef TIOCGETC
	329	struct tchars tchars;
	330	int lmode;
	331	#define EMACS_GET_TTY_3(fd, p) \
	332	(ioctl ((fd), TIOCGETC, &(p)->tchars) != -1 \
	333	&& ioctl ((fd), TIOCLGET, &(p)->lmode) != -1)
	334	#define EMACS_SET_TTY_3(fd, p, waitp) \
	335	(ioctl ((fd), TIOCSETC, &(p)->tchars) != -1 \
	336	&& ioctl ((fd), TIOCLSET, &(p)->lmode) != -1)
	337	#else
	338	#define EMACS_GET_TTY_3(fd, p) 1
	339	#define EMACS_SET_TTY_3(fd, p, waitp) 1
	340	#endif /* TIOCGLTC */
	341
	342	};
	343
bd307392	344	/* Define these to be a concatenation of all the EMACS_{GET,SET}_TTY_n
d0d6b7c5 JB	345	macros. */
	346	#define EMACS_GET_TTY(fd, tc) \
	347	(EMACS_GET_TTY_1 (fd, tc) \
	348	&& EMACS_GET_TTY_2 (fd, tc) \
	349	&& EMACS_GET_TTY_3 (fd, tc))
	350
	351	#define EMACS_SET_TTY(fd, tc, waitp) \
	352	(EMACS_SET_TTY_1 (fd, tc, waitp) \
	353	&& EMACS_SET_TTY_2 (fd, tc, waitp) \
	354	&& EMACS_SET_TTY_3 (fd, tc, waitp))
	355
	356
	357	#ifdef HAVE_TERMIOS
	358
	359	#define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3)
	360
	361	#else /* not def HAVE_TERMIOS */
	362	#ifdef HAVE_TERMIO
	363
	364	#define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3)
	365
	366	#else /* neither HAVE_TERMIO nor HAVE_TERMIOS */
	367	#ifdef VMS
	368
	369	#define EMACS_TTY_TABS_OK(p) (((p)->main.tt_char & TT$M_MECHTAB) != 0)
	370
	371	#else
	372
	373	#define EMACS_TTY_TABS_OK(p) (((p)->main.sg_flags & XTABS) != XTABS)
	374
	375	#endif /* not def VMS */
	376	#endif /* not def HAVE_TERMIO */
	377	#endif /* not def HAVE_TERMIOS */