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screen/tty.sh
Daniel Baumann e88291c4cd
Adding upstream version 4.9.1. 
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-22 15:19:57 +02:00

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#! /bin/sh
# sh tty.sh tty.c
# This inserts all the needed #ifdefs for IF{} statements
# and generates tty.c
#
# Stupid cpp on A/UX barfs on ``#if defined(FOO) && FOO < 17'' when
# FOO is undefined. Reported by Robert C. Tindall (rtindall@uidaho.edu)
#
rm -f $1
sed -e '1,26d' \
-e 's%^IF{\([^}]*\)}\(.*\)%#if defined(\1)\
\2\
#endif /* \1 */%' \
-e 's%^IFN{\([^}]*\)}\(.*\)%#if !defined(\1)\
\2\
#endif /* \1 */%' \
-e 's%^XIF{\([^}]*\)}\(.*\)%#if defined(\1)\
#if (\1 < MAXCC)\
\2\
#endif \
#endif /* \1 */%' \
< $0 > $1
chmod -w $1
exit 0
/* Copyright (c) 2008, 2009
* Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de)
* Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de)
* Micah Cowan (micah@cowan.name)
* Sadrul Habib Chowdhury (sadrul@users.sourceforge.net)
* Copyright (c) 1993-2002, 2003, 2005, 2006, 2007
* Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de)
* Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de)
* Copyright (c) 1987 Oliver Laumann
*
* This program 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.
*
* This program 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 this program (see the file COPYING); if not, see
* https://www.gnu.org/licenses/, or contact Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*
****************************************************************
*/
/*
* NOTICE: tty.c is automatically generated from tty.sh
* Do not change anything here. If you then change tty.sh.
*/
#include <sys/types.h>
#include <signal.h>
#include <fcntl.h>
#include <sys/stat.h>
#ifndef sgi
# include <sys/file.h>
#endif
#if !defined(sun) || defined(SUNOS3)
# include <sys/ioctl.h> /* collosions with termios.h */
#else
# ifndef TIOCEXCL
# include <sys/ttold.h> /* needed for TIOCEXCL */
# endif
#endif
#ifdef __hpux
# include <sys/modem.h>
#endif
#include <limits.h>
#ifdef ISC
# include <sys/tty.h>
# include <sys/sioctl.h>
# include <sys/pty.h>
#endif
#include "config.h"
#ifdef HAVE_STROPTS_H
#include <sys/stropts.h> /* for I_POP */
#endif
#include "screen.h"
#include "extern.h"
#if !defined(TIOCCONS) && defined(sun) && defined(SVR4)
# include <sys/strredir.h>
#endif
extern struct display *display, *displays;
extern int iflag;
#if (!defined(TIOCCONS) && defined(SRIOCSREDIR)) || defined(linux)
extern struct win *console_window;
static void consredir_readev_fn __P((struct event *, char *));
#endif
int separate_sids = 1;
static void DoSendBreak __P((int, int, int));
static sigret_t SigAlrmDummy __P(SIGPROTOARG);
/* Frank Schulz (fschulz@pyramid.com):
* I have no idea why VSTART is not defined and my fix is probably not
* the cleanest, but it works.
*/
#if !defined(VSTART) && defined(_VSTART)
#define VSTART _VSTART
#endif
#if !defined(VSTOP) && defined(_VSTOP)
#define VSTOP _VSTOP
#endif
#ifndef O_NOCTTY
# define O_NOCTTY 0
#endif
#ifndef TTYVMIN
# define TTYVMIN 1
#endif
#ifndef TTYVTIME
#define TTYVTIME 0
#endif
static sigret_t
SigAlrmDummy SIGDEFARG
{
debug("SigAlrmDummy()\n");
SIGRETURN;
}
/*
* Carefully open a charcter device. Not used to open display ttys.
* The second parameter is parsed for a few stty style options.
*/
int OpenTTY(char *line, char *opt)
{
int f;
struct mode Mode;
sigret_t (*sigalrm)__P(SIGPROTOARG);
sigalrm = signal(SIGALRM, SigAlrmDummy);
alarm(2);
/* this open only succeeds, if real uid is allowed */
if ((f = secopen(line, O_RDWR | O_NONBLOCK | O_NOCTTY, 0)) == -1) {
if (errno == EINTR)
Msg(0, "Cannot open line '%s' for R/W: open() blocked, aborted.", line);
else
Msg(errno, "Cannot open line '%s' for R/W", line);
alarm(0);
signal(SIGALRM, sigalrm);
return -1;
}
if (!isatty(f)) {
Msg(0, "'%s' is not a tty", line);
alarm(0);
signal(SIGALRM, sigalrm);
close(f);
return -1;
}
#if defined(I_POP) && defined(POP_TTYMODULES)
debug("OpenTTY I_POP\n");
while (ioctl(f, I_POP, (char *)0) >= 0)
;
#endif
/*
* We come here exclusively. This is to stop all kermit and cu type things
* accessing the same tty line.
* Perhaps we should better create a lock in some /usr/spool/locks directory?
*/
#ifdef TIOCEXCL
errno = 0;
if (ioctl(f, TIOCEXCL, (char *) 0) < 0)
Msg(errno, "%s: ioctl TIOCEXCL failed", line);
debug3("%d %d %d\n", getuid(), geteuid(), getpid());
debug2("%s TIOCEXCL errno %d\n", line, errno);
#endif /* TIOCEXCL */
/*
* We create a sane tty mode. We do not copy things from the display tty
*/
#if WE_REALLY_WANT_TO_COPY_THE_TTY_MODE
if (display) {
debug1("OpenTTY: using mode of display for %s\n", line);
Mode = D_NewMode;
}
else
#endif
InitTTY(&Mode, W_TYPE_PLAIN);
SttyMode(&Mode, opt);
#ifdef DEBUG
DebugTTY(&Mode);
#endif
SetTTY(f, &Mode);
#if defined(linux) && defined(TIOCMSET)
{
int mcs = 0;
ioctl(f, TIOCMGET, &mcs);
mcs |= TIOCM_RTS;
ioctl(f, TIOCMSET, &mcs);
}
#endif
brktty(f);
alarm(0);
signal(SIGALRM, sigalrm);
debug2("'%s' CONNECT fd=%d.\n", line, f);
return f;
}
/*
* Tty mode handling
*/
void InitTTY(struct mode *m, int ttyflag)
{
bzero((char *)m, sizeof(*m));
#ifdef POSIX
/* struct termios tio
* defaults, as seen on SunOS 4.1.3
*/
debug1("InitTTY: POSIX: termios defaults based on SunOS 4.1.3, but better (%d)\n", ttyflag);
IF{BRKINT} m->tio.c_iflag |= BRKINT;
IF{IGNPAR} m->tio.c_iflag |= IGNPAR;
/* IF{ISTRIP} m->tio.c_iflag |= ISTRIP; may be needed, let's try. jw. */
IF{IXON} m->tio.c_iflag |= IXON;
/* IF{IMAXBEL} m->tio.c_iflag |= IMAXBEL; sorry, this one is ridiculus. jw */
if (!ttyflag) /* may not even be good for ptys.. */
{
IF{ICRNL} m->tio.c_iflag |= ICRNL;
IF{ONLCR} m->tio.c_oflag |= ONLCR;
IF{TAB3} m->tio.c_oflag |= TAB3;
IF{OXTABS} m->tio.c_oflag |= OXTABS;
/* IF{PARENB} m->tio.c_cflag |= PARENB; nah! jw. */
IF{OPOST} m->tio.c_oflag |= OPOST;
}
/*
* Or-ing the speed into c_cflags is dangerous.
* It breaks on bsdi, where c_ispeed and c_ospeed are extra longs.
*
* IF{B9600} m->tio.c_cflag |= B9600;
* IF{IBSHIFT) && defined(B9600} m->tio.c_cflag |= B9600 << IBSHIFT;
*
* We hope that we have the posix calls to do it right:
* If these are not available you might try the above.
*/
IF{B9600} cfsetospeed(&m->tio, B9600);
IF{B9600} cfsetispeed(&m->tio, B9600);
IF{CS8} m->tio.c_cflag |= CS8;
IF{CREAD} m->tio.c_cflag |= CREAD;
IF{CLOCAL} m->tio.c_cflag |= CLOCAL;
IF{ECHOCTL} m->tio.c_lflag |= ECHOCTL;
IF{ECHOKE} m->tio.c_lflag |= ECHOKE;
if (!ttyflag)
{
IF{ISIG} m->tio.c_lflag |= ISIG;
IF{ICANON} m->tio.c_lflag |= ICANON;
IF{ECHO} m->tio.c_lflag |= ECHO;
}
IF{ECHOE} m->tio.c_lflag |= ECHOE;
IF{ECHOK} m->tio.c_lflag |= ECHOK;
IF{IEXTEN} m->tio.c_lflag |= IEXTEN;
XIF{VINTR} m->tio.c_cc[VINTR] = Ctrl('C');
XIF{VQUIT} m->tio.c_cc[VQUIT] = Ctrl('\\');
XIF{VERASE} m->tio.c_cc[VERASE] = 0x7f; /* DEL */
XIF{VKILL} m->tio.c_cc[VKILL] = Ctrl('U');
XIF{VEOF} m->tio.c_cc[VEOF] = Ctrl('D');
XIF{VEOL} m->tio.c_cc[VEOL] = VDISABLE;
XIF{VEOL2} m->tio.c_cc[VEOL2] = VDISABLE;
XIF{VSWTCH} m->tio.c_cc[VSWTCH] = VDISABLE;
XIF{VSTART} m->tio.c_cc[VSTART] = Ctrl('Q');
XIF{VSTOP} m->tio.c_cc[VSTOP] = Ctrl('S');
XIF{VSUSP} m->tio.c_cc[VSUSP] = Ctrl('Z');
XIF{VDSUSP} m->tio.c_cc[VDSUSP] = Ctrl('Y');
XIF{VREPRINT} m->tio.c_cc[VREPRINT] = Ctrl('R');
XIF{VDISCARD} m->tio.c_cc[VDISCARD] = Ctrl('O');
XIF{VWERASE} m->tio.c_cc[VWERASE] = Ctrl('W');
XIF{VLNEXT} m->tio.c_cc[VLNEXT] = Ctrl('V');
XIF{VSTATUS} m->tio.c_cc[VSTATUS] = Ctrl('T');
if (ttyflag)
{
m->tio.c_cc[VMIN] = TTYVMIN;
m->tio.c_cc[VTIME] = TTYVTIME;
}
# ifdef HPUX_LTCHARS_HACK
m->m_ltchars.t_suspc = Ctrl('Z');
m->m_ltchars.t_dsuspc = Ctrl('Y');
m->m_ltchars.t_rprntc = Ctrl('R');
m->m_ltchars.t_flushc = Ctrl('O');
m->m_ltchars.t_werasc = Ctrl('W');
m->m_ltchars.t_lnextc = Ctrl('V');
# endif /* HPUX_LTCHARS_HACK */
#else /* POSIX */
# ifdef TERMIO
debug1("InitTTY: nonPOSIX, struct termio a la Motorola SYSV68 (%d)\n", ttyflag);
/* struct termio tio
* defaults, as seen on Mototola SYSV68:
* input: 7bit, CR->NL, ^S/^Q flow control
* output: POSTprocessing: NL->NL-CR, Tabs to spaces
* control: 9600baud, 8bit CSIZE, enable input
* local: enable signals, erase/kill processing, echo on.
*/
IF{ISTRIP} m->tio.c_iflag |= ISTRIP;
IF{IXON} m->tio.c_iflag |= IXON;
if (!ttyflag) /* may not even be good for ptys.. */
{
IF{OPOST} m->tio.c_oflag |= OPOST;
IF{ICRNL} m->tio.c_iflag |= ICRNL;
IF{ONLCR} m->tio.c_oflag |= ONLCR;
IF{TAB3} m->tio.c_oflag |= TAB3;
}
#ifdef __bsdi__
)-: cannot handle BSDI without POSIX
#else
IF{B9600} m->tio.c_cflag = B9600;
#endif
IF{CS8} m->tio.c_cflag |= CS8;
IF{CREAD} m->tio.c_cflag |= CREAD;
if (!ttyflag)
{
IF{ISIG} m->tio.c_lflag |= ISIG;
IF{ICANON} m->tio.c_lflag |= ICANON;
IF{ECHO} m->tio.c_lflag |= ECHO;
}
IF{ECHOE} m->tio.c_lflag |= ECHOE;
IF{ECHOK} m->tio.c_lflag |= ECHOK;
XIF{VINTR} m->tio.c_cc[VINTR] = Ctrl('C');
XIF{VQUIT} m->tio.c_cc[VQUIT] = Ctrl('\\');
XIF{VERASE} m->tio.c_cc[VERASE] = 0177; /* DEL */
XIF{VKILL} m->tio.c_cc[VKILL] = Ctrl('U');
XIF{VEOF} m->tio.c_cc[VEOF] = Ctrl('D');
XIF{VEOL} m->tio.c_cc[VEOL] = VDISABLE;
XIF{VEOL2} m->tio.c_cc[VEOL2] = VDISABLE;
XIF{VSWTCH} m->tio.c_cc[VSWTCH] = VDISABLE;
if (ttyflag) {
m->tio.c_cc[VMIN] = TTYVMIN;
m->tio.c_cc[VTIME] = TTYVTIME;
}
# else /* TERMIO */
debug1("InitTTY: BSD: defaults a la SunOS 4.1.3 (%d)\n", ttyflag);
m->m_ttyb.sg_ispeed = B9600;
m->m_ttyb.sg_ospeed = B9600;
m->m_ttyb.sg_erase = 0177; /*DEL */
m->m_ttyb.sg_kill = Ctrl('U');
if (!ttyflag)
m->m_ttyb.sg_flags = CRMOD | ECHO
IF{ANYP} | ANYP
;
else
m->m_ttyb.sg_flags = CBREAK
IF{ANYP} | ANYP
;
m->m_tchars.t_intrc = Ctrl('C');
m->m_tchars.t_quitc = Ctrl('\\');
m->m_tchars.t_startc = Ctrl('Q');
m->m_tchars.t_stopc = Ctrl('S');
m->m_tchars.t_eofc = Ctrl('D');
m->m_tchars.t_brkc = -1;
m->m_ltchars.t_suspc = Ctrl('Z');
m->m_ltchars.t_dsuspc = Ctrl('Y');
m->m_ltchars.t_rprntc = Ctrl('R');
m->m_ltchars.t_flushc = Ctrl('O');
m->m_ltchars.t_werasc = Ctrl('W');
m->m_ltchars.t_lnextc = Ctrl('V');
IF{NTTYDISC} m->m_ldisc = NTTYDISC;
m->m_lmode = 0
IF{LDECCTQ} | LDECCTQ
IF{LCTLECH} | LCTLECH
IF{LPASS8} | LPASS8
IF{LCRTKIL} | LCRTKIL
IF{LCRTERA} | LCRTERA
IF{LCRTBS} | LCRTBS
;
# endif /* TERMIO */
#endif /* POSIX */
#if defined(ENCODINGS) && defined(TIOCKSET)
m->m_jtchars.t_ascii = 'J';
m->m_jtchars.t_kanji = 'B';
m->m_knjmode = KM_ASCII | KM_SYSSJIS;
#endif
}
void SetTTY(int fd, struct mode *mp)
{
errno = 0;
#ifdef POSIX
tcsetattr(fd, TCSADRAIN, &mp->tio);
# ifdef HPUX_LTCHARS_HACK
ioctl(fd, TIOCSLTC, (char *)&mp->m_ltchars);
# endif
#else
# ifdef TERMIO
ioctl(fd, TCSETAW, (char *)&mp->tio);
# ifdef CYTERMIO
if (mp->tio.c_line == 3) {
ioctl(fd, LDSETMAPKEY, (char *)&mp->m_mapkey);
ioctl(fd, LDSETMAPSCREEN, (char *)&mp->m_mapscreen);
ioctl(fd, LDSETBACKSPACE, (char *)&mp->m_backspace);
}
# endif
# else
/* ioctl(fd, TIOCSETP, (char *)&mp->m_ttyb); */
ioctl(fd, TIOCSETC, (char *)&mp->m_tchars);
ioctl(fd, TIOCLSET, (char *)&mp->m_lmode);
ioctl(fd, TIOCSETD, (char *)&mp->m_ldisc);
ioctl(fd, TIOCSETP, (char *)&mp->m_ttyb);
ioctl(fd, TIOCSLTC, (char *)&mp->m_ltchars); /* moved here for apollo. jw */
# endif
#endif
#if defined(ENCODINGS) && defined(TIOCKSET)
ioctl(fd, TIOCKSETC, &mp->m_jtchars);
ioctl(fd, TIOCKSET, &mp->m_knjmode);
#endif
if (errno)
Msg(errno, "SetTTY (fd %d): ioctl failed", fd);
}
void GetTTY(int fd, struct mode *mp)
{
errno = 0;
#ifdef POSIX
tcgetattr(fd, &mp->tio);
# ifdef HPUX_LTCHARS_HACK
ioctl(fd, TIOCGLTC, (char *)&mp->m_ltchars);
# endif
#else
# ifdef TERMIO
ioctl(fd, TCGETA, (char *)&mp->tio);
# ifdef CYTERMIO
if (mp->tio.c_line == 3) {
ioctl(fd, LDGETMAPKEY, (char *)&mp->m_mapkey);
ioctl(fd, LDGETMAPSCREEN, (char *)&mp->m_mapscreen);
ioctl(fd, LDGETBACKSPACE, (char *)&mp->m_backspace);
}
else {
mp->m_mapkey = NOMAPKEY;
mp->m_mapscreen = NOMAPSCREEN;
mp->m_backspace = '\b';
}
# endif
# else
ioctl(fd, TIOCGETP, (char *)&mp->m_ttyb);
ioctl(fd, TIOCGETC, (char *)&mp->m_tchars);
ioctl(fd, TIOCGLTC, (char *)&mp->m_ltchars);
ioctl(fd, TIOCLGET, (char *)&mp->m_lmode);
ioctl(fd, TIOCGETD, (char *)&mp->m_ldisc);
# endif
#endif
#if defined(ENCODINGS) && defined(TIOCKSET)
ioctl(fd, TIOCKGETC, &mp->m_jtchars);
ioctl(fd, TIOCKGET, &mp->m_knjmode);
#endif
if (errno)
Msg(errno, "GetTTY (fd %d): ioctl failed", fd);
}
/*
* needs interrupt = iflag and flow = d->d_flow
*/
void SetMode(struct mode *op, struct mode *np, int flow, int interrupt)
{
*np = *op;
ASSERT(display);
#if defined(TERMIO) || defined(POSIX)
# ifdef CYTERMIO
np->m_mapkey = NOMAPKEY;
np->m_mapscreen = NOMAPSCREEN;
np->tio.c_line = 0;
# endif
IF{ICRNL} np->tio.c_iflag &= ~ICRNL;
IF{ISTRIP} np->tio.c_iflag &= ~ISTRIP;
IF{ONLCR} np->tio.c_oflag &= ~ONLCR;
np->tio.c_lflag &= ~(ICANON | ECHO);
/*
* From Andrew Myers (andru@tonic.lcs.mit.edu)
* to avoid ^V^V-Problem on OSF1
*/
IF{IEXTEN} np->tio.c_lflag &= ~IEXTEN;
/*
* Unfortunately, the master process never will get SIGINT if the real
* terminal is different from the one on which it was originaly started
* (process group membership has not been restored or the new tty could not
* be made controlling again). In my solution, it is the attacher who
* receives SIGINT (because it is always correctly associated with the real
* tty) and forwards it to the master [kill(MasterPid, SIGINT)].
* Marc Boucher (marc@CAM.ORG)
*/
if (interrupt)
np->tio.c_lflag |= ISIG;
else
np->tio.c_lflag &= ~ISIG;
/*
* careful, careful catche monkey..
* never set VMIN and VTIME to zero, if you want blocking io.
*
* We may want to do a VMIN > 0, VTIME > 0 read on the ptys too, to
* reduce interrupt frequency. But then we would not know how to
* handle read returning 0. jw.
*/
np->tio.c_cc[VMIN] = 1;
np->tio.c_cc[VTIME] = 0;
if (!interrupt || !flow)
np->tio.c_cc[VINTR] = VDISABLE;
np->tio.c_cc[VQUIT] = VDISABLE;
if (flow == 0)
{
XIF{VSTART} np->tio.c_cc[VSTART] = VDISABLE;
XIF{VSTOP} np->tio.c_cc[VSTOP] = VDISABLE;
np->tio.c_iflag &= ~IXON;
}
XIF{VDISCARD} np->tio.c_cc[VDISCARD] = VDISABLE;
XIF{VLNEXT} np->tio.c_cc[VLNEXT] = VDISABLE;
XIF{VSTATUS} np->tio.c_cc[VSTATUS] = VDISABLE;
XIF{VSUSP} np->tio.c_cc[VSUSP] = VDISABLE;
/* Set VERASE to DEL, rather than VDISABLE, to avoid libvte
"autodetect" issues. */
XIF{VERASE} np->tio.c_cc[VERASE] = 0x7f;
XIF{VKILL} np->tio.c_cc[VKILL] = VDISABLE;
# ifdef HPUX_LTCHARS_HACK
np->m_ltchars.t_suspc = VDISABLE;
np->m_ltchars.t_dsuspc = VDISABLE;
np->m_ltchars.t_rprntc = VDISABLE;
np->m_ltchars.t_flushc = VDISABLE;
np->m_ltchars.t_werasc = VDISABLE;
np->m_ltchars.t_lnextc = VDISABLE;
# else /* HPUX_LTCHARS_HACK */
XIF{VDSUSP} np->tio.c_cc[VDSUSP] = VDISABLE;
XIF{VREPRINT} np->tio.c_cc[VREPRINT] = VDISABLE;
XIF{VWERASE} np->tio.c_cc[VWERASE] = VDISABLE;
# endif /* HPUX_LTCHARS_HACK */
#else /* TERMIO || POSIX */
if (!interrupt || !flow)
np->m_tchars.t_intrc = -1;
np->m_ttyb.sg_flags &= ~(CRMOD | ECHO);
np->m_ttyb.sg_flags |= CBREAK;
# if defined(CYRILL) && defined(CSTYLE) && defined(CS_8BITS)
np->m_ttyb.sg_flags &= ~CSTYLE;
np->m_ttyb.sg_flags |= CS_8BITS;
# endif
np->m_tchars.t_quitc = -1;
if (flow == 0)
{
np->m_tchars.t_startc = -1;
np->m_tchars.t_stopc = -1;
}
np->m_ltchars.t_suspc = -1;
np->m_ltchars.t_dsuspc = -1;
np->m_ltchars.t_flushc = -1;
np->m_ltchars.t_lnextc = -1;
#endif /* defined(TERMIO) || defined(POSIX) */
}
/* operates on display */
void SetFlow(int on)
{
ASSERT(display);
if (D_flow == on)
return;
#if defined(TERMIO) || defined(POSIX)
if (on)
{
D_NewMode.tio.c_cc[VINTR] = iflag ? D_OldMode.tio.c_cc[VINTR] : VDISABLE;
XIF{VSTART} D_NewMode.tio.c_cc[VSTART] = D_OldMode.tio.c_cc[VSTART];
XIF{VSTOP} D_NewMode.tio.c_cc[VSTOP] = D_OldMode.tio.c_cc[VSTOP];
D_NewMode.tio.c_iflag |= D_OldMode.tio.c_iflag & IXON;
}
else
{
D_NewMode.tio.c_cc[VINTR] = VDISABLE;
XIF{VSTART} D_NewMode.tio.c_cc[VSTART] = VDISABLE;
XIF{VSTOP} D_NewMode.tio.c_cc[VSTOP] = VDISABLE;
D_NewMode.tio.c_iflag &= ~IXON;
}
# ifdef POSIX
# ifdef TCOON
if (!on)
tcflow(D_userfd, TCOON);
# endif
if (tcsetattr(D_userfd, TCSANOW, &D_NewMode.tio))
# else
if (ioctl(D_userfd, TCSETAW, (char *)&D_NewMode.tio) != 0)
# endif
debug1("SetFlow: ioctl errno %d\n", errno);
#else /* POSIX || TERMIO */
if (on) {
D_NewMode.m_tchars.t_intrc = iflag ? D_OldMode.m_tchars.t_intrc : -1;
D_NewMode.m_tchars.t_startc = D_OldMode.m_tchars.t_startc;
D_NewMode.m_tchars.t_stopc = D_OldMode.m_tchars.t_stopc;
}
else {
D_NewMode.m_tchars.t_intrc = -1;
D_NewMode.m_tchars.t_startc = -1;
D_NewMode.m_tchars.t_stopc = -1;
}
if (ioctl(D_userfd, TIOCSETC, (char *)&D_NewMode.m_tchars) != 0)
debug1("SetFlow: ioctl errno %d\n", errno);
#endif /* POSIX || TERMIO */
D_flow = on;
}
/* parse commands from opt and modify m */
int SttyMode(struct mode *m, char *opt)
{
static const char sep[] = " \t:;,";
if (!opt)
return 0;
while (*opt) {
while (index(sep, *opt)) opt++;
if (*opt >= '0' && *opt <= '9') {
if (SetBaud(m, atoi(opt), atoi(opt)))
return -1;
}
else if (!strncmp("cs7", opt, 3)) {
#if defined(POSIX) || defined(TERMIO)
m->tio.c_cflag &= ~CSIZE;
m->tio.c_cflag |= CS7;
#else
m->m_lmode &= ~LPASS8;
#endif
}
else if (!strncmp("cs8", opt, 3)) {
#if defined(POSIX) || defined(TERMIO)
m->tio.c_cflag &= ~CSIZE;
m->tio.c_cflag |= CS8;
#else
m->m_lmode |= LPASS8;
#endif
}
else if (!strncmp("parenb", opt, 6)) {
#if defined(POSIX) || defined(TERMIO)
m->tio.c_cflag |= PARENB;
#else
debug("SttyMode: no parenb in old bsd land.\n");
#endif
}
else if (!strncmp("-parenb", opt, 6)) {
#if defined(POSIX) || defined(TERMIO)
m->tio.c_cflag &= ~PARENB;
#else
debug("SttyMode: no -parenb in old bsd land.\n");
#endif
}
else if (!strncmp("parodd", opt, 6)) {
#if defined(POSIX) || defined(TERMIO)
m->tio.c_cflag |= PARODD;
#else
debug("SttyMode: no parodd in old bsd land.\n");
#endif
}
else if (!strncmp("-parodd", opt, 6)) {
#if defined(POSIX) || defined(TERMIO)
m->tio.c_cflag &= ~PARODD;
#else
debug("SttyMode: no -parodd in old bsd land.\n");
#endif
}
else if (!strncmp("cstopb", opt, 6)) {
#if defined(POSIX) || defined(TERMIO)
m->tio.c_cflag |= CSTOPB;
#else
debug("SttyMode: no cstopb in old bsd land.\n");
#endif
}
else if (!strncmp("-cstopb", opt, 7)) {
#if defined(POSIX) || defined(TERMIO)
m->tio.c_cflag &= ~CSTOPB;
#else
debug("SttyMode: no -cstopb in old bsd land.\n");
#endif
}
else if (!strncmp("istrip", opt, 6)) {
#if defined(POSIX) || defined(TERMIO)
m->tio.c_iflag |= ISTRIP;
#else
m->m_lmode &= ~LPASS8;
#endif
}
else if (!strncmp("-istrip", opt, 7)) {
#if defined(POSIX) || defined(TERMIO)
m->tio.c_iflag &= ~ISTRIP;
#else
m->m_lmode |= LPASS8;
#endif
}
else if (!strncmp("ixon", opt, 4)) {
#if defined(POSIX) || defined(TERMIO)
m->tio.c_iflag |= IXON;
#else
debug("SttyMode: no ixon in old bsd land.\n");
#endif
}
else if (!strncmp("-ixon", opt, 5)) {
#if defined(POSIX) || defined(TERMIO)
m->tio.c_iflag &= ~IXON;
#else
debug("SttyMode: no -ixon in old bsd land.\n");
#endif
}
else if (!strncmp("ixoff", opt, 5)) {
#if defined(POSIX) || defined(TERMIO)
m->tio.c_iflag |= IXOFF;
#else
m->m_ttyb.sg_flags |= TANDEM;
#endif
}
else if (!strncmp("-ixoff", opt, 6)) {
#if defined(POSIX) || defined(TERMIO)
m->tio.c_iflag &= ~IXOFF;
#else
m->m_ttyb.sg_flags &= ~TANDEM;
#endif
}
else if (!strncmp("crtscts", opt, 7)) {
#if (defined(POSIX) || defined(TERMIO)) && defined(CRTSCTS)
m->tio.c_cflag |= CRTSCTS;
#endif
}
else if (!strncmp("-crtscts", opt, 8)) {
#if (defined(POSIX) || defined(TERMIO)) && defined(CRTSCTS)
m->tio.c_cflag &= ~CRTSCTS;
#endif
}
else
return -1;
while (*opt && !index(sep, *opt)) opt++;
}
return 0;
}
/*
* Job control handling
*
* Somehow the ultrix session handling is broken, so use
* the bsdish variant.
*/
/*ARGSUSED*/
void brktty(int fd)
{
#if defined(POSIX) && !defined(ultrix)
if (separate_sids)
setsid(); /* will break terminal affiliation */
/* GNU added for Hurd systems 2001-10-10 */
# if defined(BSD) && defined(TIOCSCTTY) && !defined(__GNU__)
ioctl(fd, TIOCSCTTY, (char *)0);
# endif /* BSD && TIOCSCTTY */
#else /* POSIX */
# ifdef SYSV
if (separate_sids)
setpgrp(); /* will break terminal affiliation */
# else /* SYSV */
# ifdef BSDJOBS
int devtty;
if ((devtty = open("/dev/tty", O_RDWR | O_NONBLOCK)) >= 0)
{
if (ioctl(devtty, TIOCNOTTY, (char *)0))
debug2("brktty: ioctl(devtty=%d, TIOCNOTTY, 0) = %d\n", devtty, errno);
close(devtty);
}
# endif /* BSDJOBS */
# endif /* SYSV */
#endif /* POSIX */
}
int fgtty(int fd)
{
#ifdef BSDJOBS
int mypid;
mypid = getpid();
/*
* Under BSD we have to set the controlling terminal again explicitly.
*/
# if (defined(__FreeBSD_kernel__) || defined(__DragonFly__) || defined(__GNU__) || defined(__OpenBSD__)) && defined(TIOCSCTTY)
ioctl(fd, TIOCSCTTY, (char *)0);
# endif
# ifdef POSIX
if (separate_sids)
if (tcsetpgrp(fd, mypid)) {
debug1("fgtty: tcsetpgrp: %d\n", errno);
return -1;
}
# else /* POSIX */
if (ioctl(fd, TIOCSPGRP, (char *)&mypid) != 0)
debug1("fgtty: TIOSETPGRP: %d\n", errno);
# ifndef SYSV /* Already done in brktty():setpgrp() */
if (separate_sids)
if (setpgrp(fd, mypid))
debug1("fgtty: setpgrp: %d\n", errno);
# endif
# endif /* POSIX */
#endif /* BSDJOBS */
return 0;
}
/*
* The alm boards on our sparc center 1000 have a lousy driver.
* We cannot generate long breaks unless we use the most ugly form
* of ioctls. jw.
*/
#ifdef POSIX
int breaktype = 2;
#else /* POSIX */
# ifdef TCSBRK
int breaktype = 1;
# else
int breaktype = 0;
# endif
#endif /* POSIX */
#if defined(sun) && !defined(SVR4)
# define HAVE_SUPER_TCSENDBREAK
#endif
/*
* type:
* 0: TIOCSBRK / TIOCCBRK
* 1: TCSBRK
* 2: tcsendbreak()
* n: approximate duration in 1/4 seconds.
*/
static void DoSendBreak(int fd, int n, int type)
{
switch (type) {
case 2: /* tcsendbreak() =============================== */
#ifdef POSIX
# ifdef HAVE_SUPER_TCSENDBREAK
/* There is one rare case that I have tested, where tcsendbreak works
* really great: this was an alm driver that came with SunOS 4.1.3
* If you have this one, define the above symbol.
* here we can use the second parameter to specify the duration.
*/
debug2("tcsendbreak(fd=%d, %d)\n", fd, n);
if (tcsendbreak(fd, n) < 0)
Msg(errno, "cannot send BREAK (tcsendbreak)");
# else
/*
* here we hope, that multiple calls to tcsendbreak() can
* be concatenated to form a long break, as we do not know
* what exact interpretation the second parameter has:
*
* - sunos 4: duration in quarter seconds
* - sunos 5: 0 a short break, nonzero a tcdrain()
* - hpux, irix: ignored
* - mot88: duration in milliseconds
* - aix: duration in milliseconds, but 0 is 25 milliseconds.
*/
debug2("%d * tcsendbreak(fd=%d, 0)\n", n, fd);
{
int i;
if (!n)
n++;
for (i = 0; i < n; i++)
if (tcsendbreak(fd, 0) < 0) {
Msg(errno, "cannot send BREAK (tcsendbreak SVR4)");
return;
}
}
# endif
#else /* POSIX */
Msg(0, "tcsendbreak() not available, change breaktype");
#endif /* POSIX */
break;
case 1: /* TCSBRK ======================================= */
#ifdef TCSBRK
if (!n)
n++;
/*
* Here too, we assume that short breaks can be concatenated to
* perform long breaks. But for SOLARIS, this is not true, of course.
*/
debug2("%d * TCSBRK fd=%d\n", n, fd);
{
int i;
for (i = 0; i < n; i++)
if (ioctl(fd, TCSBRK, (char *)0) < 0) {
Msg(errno, "Cannot send BREAK (TCSBRK)");
return;
}
}
#else /* TCSBRK */
Msg(0, "TCSBRK not available, change breaktype");
#endif /* TCSBRK */
break;
case 0: /* TIOCSBRK / TIOCCBRK ========================== */
#if defined(TIOCSBRK) && defined(TIOCCBRK)
/*
* This is very rude. Screen actively celebrates the break.
* But it may be the only save way to issue long breaks.
*/
debug("TIOCSBRK TIOCCBRK\n");
if (ioctl(fd, TIOCSBRK, (char *)0) < 0) {
Msg(errno, "Can't send BREAK (TIOCSBRK)");
return;
}
sleep1000(n ? n * 250 : 250);
if (ioctl(fd, TIOCCBRK, (char *)0) < 0) {
Msg(errno, "BREAK stuck!!! -- HELP! (TIOCCBRK)");
return;
}
#else /* TIOCSBRK && TIOCCBRK */
Msg(0, "TIOCSBRK/CBRK not available, change breaktype");
#endif /* TIOCSBRK && TIOCCBRK */
break;
default: /* unknown ========================== */
Msg(0, "Internal SendBreak error: method %d unknown", type);
}
}
/*
* Send a break for n * 0.25 seconds. Tty must be PLAIN.
* The longest possible break allowed here is 15 seconds.
*/
void SendBreak(struct win *wp, int n, int closeopen)
{
sigret_t (*sigalrm)__P(SIGPROTOARG);
#ifdef BUILTIN_TELNET
if (wp->w_type == W_TYPE_TELNET) {
TelBreak(wp);
return;
}
#endif
if (wp->w_type != W_TYPE_PLAIN)
return;
debug3("break(%d, %d) fd %d\n", n, closeopen, wp->w_ptyfd);
#ifdef POSIX
(void) tcflush(wp->w_ptyfd, TCIOFLUSH);
#else
# ifdef TIOCFLUSH
(void) ioctl(wp->w_ptyfd, TIOCFLUSH, (char *)0);
# endif /* TIOCFLUSH */
#endif /* POSIX */
if (closeopen) {
close(wp->w_ptyfd);
sleep1000(n ? n * 250 : 250);
if ((wp->w_ptyfd = OpenTTY(wp->w_tty, wp->w_cmdargs[1])) < 1) {
Msg(0, "Ouch, cannot reopen line %s, please try harder", wp->w_tty);
return;
}
(void) fcntl(wp->w_ptyfd, F_SETFL, FNBLOCK);
}
else {
sigalrm = signal(SIGALRM, SigAlrmDummy);
alarm(15);
DoSendBreak(wp->w_ptyfd, n, breaktype);
alarm(0);
signal(SIGALRM, sigalrm);
}
debug(" broken.\n");
}
/*
* Console grabbing
*/
#if (!defined(TIOCCONS) && defined(SRIOCSREDIR)) || defined(linux)
static struct event consredir_ev;
static int consredirfd[2] = {-1, -1};
static void consredir_readev_fn(struct event *ev, char *data)
{
char *p, *n, buf[256];
int l;
if (!console_window || (l = read(consredirfd[0], buf, sizeof(buf))) <= 0) {
close(consredirfd[0]);
close(consredirfd[1]);
consredirfd[0] = consredirfd[1] = -1;
evdeq(ev);
return;
}
for (p = n = buf; l > 0; n++, l--)
if (*n == '\n') {
if (n > p)
WriteString(console_window, p, n - p);
WriteString(console_window, "\r\n", 2);
p = n + 1;
}
if (n > p)
WriteString(console_window, p, n - p);
}
#endif
/*ARGSUSED*/
int TtyGrabConsole(int fd, int on, char *rc_name)
{
#if defined(TIOCCONS) && !defined(linux)
struct display *d;
int ret = 0;
int sfd = -1;
if (on < 0)
return 0; /* pty close will ungrab */
if (on) {
if (displays == 0) {
Msg(0, "I need a display");
return -1;
}
for (d = displays; d; d = d->d_next)
if (strcmp(d->d_usertty, "/dev/console") == 0)
break;
if (d) {
Msg(0, "too dangerous - screen is running on /dev/console");
return -1;
}
}
if (!on) {
char *slave;
if ((fd = OpenPTY(&slave)) < 0) {
Msg(errno, "%s: could not open detach pty master", rc_name);
return -1;
}
if ((sfd = open(slave, O_RDWR | O_NOCTTY)) < 0) {
Msg(errno, "%s: could not open detach pty slave", rc_name);
close(fd);
return -1;
}
}
if (UserContext() == 1)
UserReturn(ioctl(fd, TIOCCONS, (char *)&on));
ret = UserStatus();
if (ret)
Msg(errno, "%s: ioctl TIOCCONS failed", rc_name);
if (!on) {
close(sfd);
close(fd);
}
return ret;
#else
# if defined(SRIOCSREDIR) || defined(linux)
struct display *d;
# ifdef SRIOCSREDIR
int cfd;
# else
struct mode new1, new2;
char *slave;
# endif
if (on > 0) {
if (displays == 0) {
Msg(0, "I need a display");
return -1;
}
for (d = displays; d; d = d->d_next)
if (strcmp(d->d_usertty, "/dev/console") == 0)
break;
if (d) {
Msg(0, "too dangerous - screen is running on /dev/console");
return -1;
}
}
if (consredirfd[0] >= 0) {
evdeq(&consredir_ev);
close(consredirfd[0]);
close(consredirfd[1]);
consredirfd[0] = consredirfd[1] = -1;
}
if (on <= 0)
return 0;
# ifdef SRIOCSREDIR
if ((cfd = secopen("/dev/console", O_RDWR|O_NOCTTY, 0)) == -1) {
Msg(errno, "/dev/console");
return -1;
}
if (pipe(consredirfd)) {
Msg(errno, "pipe");
close(cfd);
consredirfd[0] = consredirfd[1] = -1;
return -1;
}
if (ioctl(cfd, SRIOCSREDIR, consredirfd[1])) {
Msg(errno, "SRIOCSREDIR ioctl");
close(cfd);
close(consredirfd[0]);
close(consredirfd[1]);
consredirfd[0] = consredirfd[1] = -1;
return -1;
}
close(cfd);
# else
/* special linux workaround for a too restrictive kernel */
if ((consredirfd[0] = OpenPTY(&slave)) < 0) {
Msg(errno, "%s: could not open detach pty master", rc_name);
return -1;
}
if ((consredirfd[1] = open(slave, O_RDWR | O_NOCTTY)) < 0) {
Msg(errno, "%s: could not open detach pty slave", rc_name);
close(consredirfd[0]);
return -1;
}
InitTTY(&new1, 0);
SetMode(&new1, &new2, 0, 0);
SetTTY(consredirfd[1], &new2);
if (UserContext() == 1)
UserReturn(ioctl(consredirfd[1], TIOCCONS, (char *)&on));
if (UserStatus()) {
Msg(errno, "%s: ioctl TIOCCONS failed", rc_name);
close(consredirfd[0]);
close(consredirfd[1]);
return -1;
}
# endif
consredir_ev.fd = consredirfd[0];
consredir_ev.type = EV_READ;
consredir_ev.handler = consredir_readev_fn;
evenq(&consredir_ev);
return 0;
# else
if (on > 0)
Msg(0, "%s: don't know how to grab the console", rc_name);
return -1;
# endif
#endif
}
/*
* Read modem control lines of a physical tty and write them to buf
* in a readable format.
* Will not write more than 256 characters to buf.
* Returns buf;
*/
char * TtyGetModemStatus(int fd, char *buf)
{
char *p = buf;
#ifdef TIOCGSOFTCAR
unsigned int softcar;
#endif
#if defined(TIOCMGET) || defined(TIOCMODG)
unsigned int mflags;
#else
# ifdef MCGETA
/* this is yet another interface, found on hpux. grrr */
mflag mflags;
IF{MDTR}# define TIOCM_DTR MDTR
IF{MRTS}# define TIOCM_RTS MRTS
IF{MDSR}# define TIOCM_DSR MDSR
IF{MDCD}# define TIOCM_CAR MDCD
IF{MRI}# define TIOCM_RNG MRI
IF{MCTS}# define TIOCM_CTS MCTS
# endif
#endif
#if defined(CLOCAL) || defined(CRTSCTS)
struct mode mtio; /* screen.h */
#endif
#if defined(CRTSCTS) || defined(TIOCM_CTS)
int rtscts;
#endif
int clocal;
#if defined(CLOCAL) || defined(CRTSCTS)
GetTTY(fd, &mtio);
#endif
clocal = 0;
#ifdef CLOCAL
if (mtio.tio.c_cflag & CLOCAL) {
clocal = 1;
*p++ = '{';
}
#endif
#ifdef TIOCM_CTS
# ifdef CRTSCTS
if (!(mtio.tio.c_cflag & CRTSCTS))
rtscts = 0;
else
# endif /* CRTSCTS */
rtscts = 1;
#endif /* TIOCM_CTS */
#ifdef TIOCGSOFTCAR
if (ioctl(fd, TIOCGSOFTCAR, (char *)&softcar) < 0)
softcar = 0;
#endif
#if defined(TIOCMGET) || defined(TIOCMODG) || defined(MCGETA)
# ifdef TIOCMGET
if (ioctl(fd, TIOCMGET, (char *)&mflags) < 0)
# else
# ifdef TIOCMODG
if (ioctl(fd, TIOCMODG, (char *)&mflags) < 0)
# else
if (ioctl(fd, MCGETA, &mflags) < 0)
# endif
# endif
{
#ifdef TIOCGSOFTCAR
sprintf(p, "NO-TTY? %s", softcar ? "(CD)" : "CD");
#else
sprintf(p, "NO-TTY?");
#endif
p += strlen(p);
}
else
{
char *s;
# ifdef FANCY_MODEM
# ifdef TIOCM_LE
if (!(mflags & TIOCM_LE))
for (s = "!LE "; *s; *p++ = *s++);
# endif
# endif /* FANCY_MODEM */
# ifdef TIOCM_RTS
s = "!RTS ";
if (mflags & TIOCM_RTS)
s++;
while (*s) *p++ = *s++;
# endif
# ifdef TIOCM_CTS
s = "!CTS ";
if (!rtscts) {
*p++ = '(';
s = "!CTS) ";
}
if (mflags & TIOCM_CTS)
s++;
while (*s) *p++ = *s++;
# endif
# ifdef TIOCM_DTR
s = "!DTR ";
if (mflags & TIOCM_DTR)
s++;
while (*s) *p++ = *s++;
# endif
# ifdef TIOCM_DSR
s = "!DSR ";
if (mflags & TIOCM_DSR)
s++;
while (*s) *p++ = *s++;
# endif
# if defined(TIOCM_CD) || defined(TIOCM_CAR)
s = "!CD ";
# ifdef TIOCGSOFTCAR
if (softcar) {
*p++ = '(';
s = "!CD) ";
}
# endif
# ifdef TIOCM_CD
if (mflags & TIOCM_CD)
s++;
# else
if (mflags & TIOCM_CAR)
s++;
# endif
while (*s) *p++ = *s++;
# endif
# if defined(TIOCM_RI) || defined(TIOCM_RNG)
# ifdef TIOCM_RI
if (mflags & TIOCM_RI)
# else
if (mflags & TIOCM_RNG)
# endif
for (s = "RI "; *s; *p++ = *s++);
# endif
# ifdef FANCY_MODEM
# ifdef TIOCM_ST
s = "!ST ";
if (mflags & TIOCM_ST)
s++;
while (*s) *p++ = *s++;
# endif
# ifdef TIOCM_SR
s = "!SR ";
if (mflags & TIOCM_SR)
s++;
while (*s) *p++ = *s++;
# endif
# endif /* FANCY_MODEM */
if (p > buf && p[-1] == ' ')
p--;
*p = '\0';
}
#else
# ifdef TIOCGSOFTCAR
sprintf(p, " %s", softcar ? "(CD)", "CD");
p += strlen(p);
# endif
#endif
if (clocal)
*p++ = '}';
*p = '\0';
return buf;
}
/*
* Old bsd-ish machines may not have any of the baudrate B... symbols.
* We hope to detect them here, so that the btable[] below always has
* many entries.
*/
#ifndef POSIX
# ifndef TERMIO
# if !defined(B9600) && !defined(B2400) && !defined(B1200) && !defined(B300)
IFN{B0}#define B0 0
IFN{B50}#define B50 1
IFN{B75}#define B75 2
IFN{B110}#define B110 3
IFN{B134}#define B134 4
IFN{B150}#define B150 5
IFN{B200}#define B200 6
IFN{B300}#define B300 7
IFN{B600}#define B600 8
IFN{B1200}#define B1200 9
IFN{B1800}#define B1800 10
IFN{B2400}#define B2400 11
IFN{B4800}#define B4800 12
IFN{B9600}#define B9600 13
IFN{EXTA}#define EXTA 14
IFN{EXTB}#define EXTB 15
# endif
# endif
#endif
/*
* On hpux, idx and sym will be different.
* Rumor has it that, we need idx in D_dospeed to make tputs
* padding correct.
* Frequently used entries come first.
*/
static struct baud_values btable[] =
{
IF{B4000000} { 33, 4000000, B4000000},
IF{B3500000} { 32, 3500000, B3500000},
IF{B3000000} { 31, 3000000, B3000000},
IF{B2500000} { 30, 2500000, B2500000},
IF{B2000000} { 29, 2000000, B2000000},
IF{B1500000} { 28, 1500000, B1500000},
IF{B1152000} { 27, 1152000, B1152000},
IF{B1000000} { 26, 1000000, B1000000},
IF{B921600} { 25, 921600, B921600 },
IF{B576000} { 24, 576000, B576000 },
IF{B500000} { 23, 500000, B500000 },
IF{B460800} { 22, 460800, B460800 },
IF{B230400} { 21, 230400, B230400 },
IF{B115200} { 20, 115200, B115200 },
IF{B57600} { 19, 57600, B57600 },
IF{EXTB} { 18, 38400, EXTB },
IF{B38400} { 18, 38400, B38400 },
IF{EXTA} { 17, 19200, EXTA },
IF{B19200} { 17, 19200, B19200 },
IF{B9600} { 16, 9600, B9600 },
IF{B7200} { 15, 7200, B7200 },
IF{B4800} { 14, 4800, B4800 },
IF{B3600} { 13, 3600, B3600 },
IF{B2400} { 12, 2400, B2400 },
IF{B1800} { 11, 1800, B1800 },
IF{B1200} { 10, 1200, B1200 },
IF{B900} { 9, 900, B900 },
IF{B600} { 8, 600, B600 },
IF{B300} { 7, 300, B300 },
IF{B200} { 6, 200, B200 },
IF{B150} { 5, 150, B150 },
IF{B134} { 4, 134, B134 },
IF{B110} { 3, 110, B110 },
IF{B75} { 2, 75, B75 },
IF{B50} { 1, 50, B50 },
IF{B0} { 0, 0, B0 },
{ -1, -1, -1 }
};
/*
* baud may either be a bits-per-second value or a symbolic
* value as returned by cfget?speed()
*/
struct baud_values *lookup_baud(int baud)
{
struct baud_values *p;
for (p = btable; p->idx >= 0; p++)
if (baud == p->bps || baud == p->sym)
return p;
return NULL;
}
/*
* change the baud rate in a mode structure.
* ibaud and obaud are given in bit/second, or at your option as
* termio B... symbols as defined in e.g. suns sys/ttydev.h
* -1 means do not change.
*/
int SetBaud(struct mode *m, int ibaud, int obaud)
{
struct baud_values *ip, *op;
if ((!(ip = lookup_baud(ibaud)) && ibaud != -1) || (!(op = lookup_baud(obaud)) && obaud != -1))
return -1;
#ifdef POSIX
if (ip)
cfsetispeed(&m->tio, ip->sym);
if (op)
cfsetospeed(&m->tio, op->sym);
#else /* POSIX */
# ifdef TERMIO
if (ip) {
# ifdef IBSHIFT
m->tio.c_cflag &= ~(CBAUD << IBSHIFT);
m->tio.c_cflag |= (ip->sym & CBAUD) << IBSHIFT;
# else /* IBSHIFT */
if (ibaud != obaud)
return -1;
# endif /* IBSHIFT */
}
if (op) {
m->tio.c_cflag &= ~CBAUD;
m->tio.c_cflag |= op->sym & CBAUD;
}
# else /* TERMIO */
if (ip)
m->m_ttyb.sg_ispeed = ip->idx;
if (op)
m->m_ttyb.sg_ospeed = op->idx;
# endif /* TERMIO */
#endif /* POSIX */
return 0;
}
int CheckTtyname (char *tty)
{
struct stat st;
char realbuf[PATH_MAX];
const char *real;
int rc;
real = realpath(tty, realbuf);
if (!real)
return -1;
realbuf[sizeof(realbuf)-1]='\0';
if (lstat(real, &st) || !S_ISCHR(st.st_mode) || (st.st_nlink > 1 && strncmp(real, "/dev", 4)))
rc = -1;
else
rc = 0;
return rc;
}
/*
* Write out the mode struct in a readable form
*/
#ifdef DEBUG
void DebugTTY(struct mode *m)
{
int i;
#ifdef POSIX
debug("struct termios tio:\n");
debug1("c_iflag = %#x\n", (unsigned int)m->tio.c_iflag);
debug1("c_oflag = %#x\n", (unsigned int)m->tio.c_oflag);
debug1("c_cflag = %#x\n", (unsigned int)m->tio.c_cflag);
debug1("c_lflag = %#x\n", (unsigned int)m->tio.c_lflag);
debug1("cfgetospeed() = %d\n", (int)cfgetospeed(&m->tio));
debug1("cfgetispeed() = %d\n", (int)cfgetispeed(&m->tio));
for (i = 0; i < sizeof(m->tio.c_cc)/sizeof(*m->tio.c_cc); i++) {
debug2("c_cc[%d] = %#x\n", i, m->tio.c_cc[i]);
}
# ifdef HPUX_LTCHARS_HACK
debug1("suspc = %#02x\n", m->m_ltchars.t_suspc);
debug1("dsuspc = %#02x\n", m->m_ltchars.t_dsuspc);
debug1("rprntc = %#02x\n", m->m_ltchars.t_rprntc);
debug1("flushc = %#02x\n", m->m_ltchars.t_flushc);
debug1("werasc = %#02x\n", m->m_ltchars.t_werasc);
debug1("lnextc = %#02x\n", m->m_ltchars.t_lnextc);
# endif /* HPUX_LTCHARS_HACK */
#else /* POSIX */
# ifdef TERMIO
debug("struct termio tio:\n");
debug1("c_iflag = %04o\n", m->tio.c_iflag);
debug1("c_oflag = %04o\n", m->tio.c_oflag);
debug1("c_cflag = %04o\n", m->tio.c_cflag);
debug1("c_lflag = %04o\n", m->tio.c_lflag);
for (i = 0; i < sizeof(m->tio.c_cc)/sizeof(*m->tio.c_cc); i++) {
debug2("c_cc[%d] = %04o\n", i, m->tio.c_cc[i]);
}
# else /* TERMIO */
debug1("sg_ispeed = %d\n", m->m_ttyb.sg_ispeed);
debug1("sg_ospeed = %d\n", m->m_ttyb.sg_ospeed);
debug1("sg_erase = %#02x\n", m->m_ttyb.sg_erase);
debug1("sg_kill = %#02x\n", m->m_ttyb.sg_kill);
debug1("sg_flags = %#04x\n", (unsigned short)m->m_ttyb.sg_flags);
debug1("intrc = %#02x\n", m->m_tchars.t_intrc);
debug1("quitc = %#02x\n", m->m_tchars.t_quitc);
debug1("startc = %#02x\n", m->m_tchars.t_startc);
debug1("stopc = %#02x\n", m->m_tchars.t_stopc);
debug1("eofc = %#02x\n", m->m_tchars.t_eofc);
debug1("brkc = %#02x\n", m->m_tchars.t_brkc);
debug1("suspc = %#02x\n", m->m_ltchars.t_suspc);
debug1("dsuspc = %#02x\n", m->m_ltchars.t_dsuspc);
debug1("rprntc = %#02x\n", m->m_ltchars.t_rprntc);
debug1("flushc = %#02x\n", m->m_ltchars.t_flushc);
debug1("werasc = %#02x\n", m->m_ltchars.t_werasc);
debug1("lnextc = %#02x\n", m->m_ltchars.t_lnextc);
debug1("ldisc = %d\n", m->m_ldisc);
debug1("lmode = %#x\n", m->m_lmode);
# endif /* TERMIO */
#endif /* POSIX */
}
#endif /* DEBUG */
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