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