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/*--------------------------------*-C-*---------------------------------*
* File: command.c
*----------------------------------------------------------------------*
* Copyright (C) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de>
*
* 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 2 of the License, 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; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*----------------------------------------------------------------------*/
/*----------------------------------------------------------------------*
* Originally written:
* 1992 John Bovey, University of Kent at Canterbury <jdb@ukc.ac.uk>
* Modifications:
* 1994 Robert Nation <nation@rocket.sanders.lockheed.com>
* - extensive modifications
* 1995 Garrett D'Amore <garrett@netcom.com>
* - vt100 printing
* 1995 Steven Hirsch <hirsch@emba.uvm.edu>
* - X11 mouse report mode and support for DEC "private mode"
* save/restore functions.
* 1995 Jakub Jelinek <jj@gnu.ai.mit.edu>
* - key-related changes to handle Shift+function keys properly.
* 1997 MJ Olesen <olesen@me.queensu.ca>
* - extensive modifications
* 1997 Raul Garcia Garcia <rgg@tid.es>
* - modification and cleanups for Solaris 2.x and Linux 1.2.x
* 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de>
* 1998 Geoff Wing <gcw@pobox.com>
* 1998 Alfredo K. Kojima <kojima@windowmaker.org>
* 1999 Rafal Wierzbicki <rafal@mcss.mcmaster.ca>
* - support for Unix98 ptys with linux-2.2.x and glibc-2.1
*----------------------------------------------------------------------*/
#ifndef lint
static const char rcsid[] = "$Id: command.c,v 1.19 2005/06/21 20:08:16 sasha Exp $";
#endif
/*{{{ includes: */
#include "rxvt.h" /* NECESSARY */
#ifdef HAVE_AFTERSTEP
#include "libAfterStep/event.h"
#endif
#define TT_PRINTF_LIMIT 1024
#if defined(OFFIX_DND) || defined(TRANSPARENT)
# include <X11/Xatom.h>
#endif
#ifdef OFFIX_DND
# define DndFile 2
# define DndDir 5
# define DndLink 7
#endif
#if defined __GLIBC__ && __GLIBC__ >= 2
# if defined __GLIBC_MINOR__ && __GLIBC_MINOR__ >= 1
# define __lnx21__ 1
# endif
#endif
#include <X11/keysym.h>
#ifndef NO_XLOCALE
# if (XtSpecificationRelease < 6)
# define NO_XLOCALE
# else
# define X_LOCALE
# include <X11/Xlocale.h>
# endif
#endif /* NO_XLOCALE */
#ifdef TTY_GID_SUPPORT
# include <grp.h>
#endif
#if defined (__svr4__) || defined (__lnx21__)
# include <sys/resource.h> /* for struct rlimit */
# include <sys/stropts.h> /* for I_PUSH */
# define _NEW_TTY_CTRL /* to get proper defines in <termios.h> */
#endif
/*}}} */
static unsigned int ModMetaMask, ModNumLockMask;
/* pasting */
static char *v_buffer; /* pointer to physical buffer */
static char *v_bufstr = NULL; /* beginning of area to write */
static char *v_bufptr; /* end of area to write */
static char *v_bufend; /* end of physical buffer */
#define UPDATE_BACKGROUND_TIMEOUT_SEC 1
#define UPDATE_BACKGROUND_TIMEOUT_USEC 350000 /* third of a second delay */
static time_t last_update_background_request_sec = 0 ;
static time_t last_update_background_request_usec = 0 ;
static Bool first_background_update = True ;
static void
timer_get_time (time_t * sec, time_t * usec)
{
struct timeval tv;
gettimeofday (&tv, NULL);
*sec = tv.tv_sec;
*usec = tv.tv_usec;
}
/* PROTO */
void
request_background_update()
{
Bool repetitive = (last_update_background_request_sec!=0);
timer_get_time (&last_update_background_request_sec, &last_update_background_request_usec );
if( first_background_update )
{
last_update_background_request_usec += 5000;
}else
last_update_background_request_usec += repetitive?UPDATE_BACKGROUND_TIMEOUT_USEC:UPDATE_BACKGROUND_TIMEOUT_USEC*2 ;
while( last_update_background_request_usec > 1000000 )
{
++last_update_background_request_sec ;
last_update_background_request_usec -= 1000000 ;
}
#ifdef DEBUG_BACKGROUND_PMAP
fprintf( stderr, "!!! %s\n", __FUNCTION__);
#endif
}
/* PROTO */
void
cancel_background_update()
{
last_update_background_request_sec = 0;
#ifdef DEBUG_BACKGROUND_PMAP
fprintf( stderr, "!!! %s\n", __FUNCTION__);
#endif
}
/* PROTO */
void
set_background_updated()
{
first_background_update = False ;
last_update_background_request_sec = 0;
#ifdef DEBUG_BACKGROUND_PMAP
fprintf( stderr, "!!! %s\n", __FUNCTION__);
#endif
}
void get_ourmods(void);
int pixmap_error_handler (Display * dpy, XErrorEvent * error);
/* #define DEBUG_TTYMODE */
/* #define DEBUG_CMD */
/*{{{ terminal mode defines: */
/* use the fastest baud-rate */
#ifdef B38400
# define BAUDRATE B38400
#else
# ifdef B19200
# define BAUDRATE B19200
# else
# define BAUDRATE B9600
# endif
#endif
/* Disable special character functions */
#ifdef _POSIX_VDISABLE
# define VDISABLE _POSIX_VDISABLE
#else
# define VDISABLE 255
#endif
/*----------------------------------------------------------------------*
* system default characters if defined and reasonable
*/
#ifndef CINTR
# define CINTR '\003' /* ^C */
#endif
#ifndef CQUIT
# define CQUIT '\034' /* ^\ */
#endif
#ifndef CERASE
# ifdef linux
# define CERASE '\177' /* ^? */
# else
# define CERASE '\010' /* ^H */
# endif
#endif
#ifndef CKILL
# define CKILL '\025' /* ^U */
#endif
#ifndef CEOF
# define CEOF '\004' /* ^D */
#endif
#ifndef CSTART
# define CSTART '\021' /* ^Q */
#endif
#ifndef CSTOP
# define CSTOP '\023' /* ^S */
#endif
#ifndef CSUSP
# define CSUSP '\032' /* ^Z */
#endif
#ifndef CDSUSP
# define CDSUSP '\031' /* ^Y */
#endif
#ifndef CRPRNT
# define CRPRNT '\022' /* ^R */
#endif
#ifndef CFLUSH
# define CFLUSH '\017' /* ^O */
#endif
#ifndef CWERASE
# define CWERASE '\027' /* ^W */
#endif
#ifndef CLNEXT
# define CLNEXT '\026' /* ^V */
#endif
#ifndef VDISCRD
# ifdef VDISCARD
# define VDISCRD VDISCARD
# endif
#endif
#ifndef VWERSE
# ifdef VWERASE
# define VWERSE VWERASE
# endif
#endif
/*}}} */
/*{{{ defines: */
#define KBUFSZ 8 /* size of keyboard mapping buffer */
#define STRING_MAX 512 /* max string size for process_xterm_seq() */
#define ESC_ARGS 32 /* max # of args for esc sequences */
/* a large REFRESH_PERIOD causes problems with `cat' */
#define REFRESH_PERIOD 1
#ifndef REFRESH_PERIOD
# define REFRESH_PERIOD 10
#endif
#ifndef MULTICLICK_TIME
# define MULTICLICK_TIME 500
#endif
#ifndef SCROLLBAR_INITIAL_DELAY
# ifdef NEXT_SCROLLER
# define SCROLLBAR_INITIAL_DELAY 20
# else
# define SCROLLBAR_INITIAL_DELAY 40
# endif
#endif
#ifndef SCROLLBAR_CONTINUOUS_DELAY
# define SCROLLBAR_CONTINUOUS_DELAY 2
#endif
/* time factor to slow down a `jumpy' mouse */
#define MOUSE_THRESHOLD 50
#define CONSOLE "/dev/console" /* console device */
/*
* key-strings: if only these keys were standardized <sigh>
*/
#ifdef LINUX_KEYS
# define KS_HOME "\033[1~" /* Home == Find */
# define KS_END "\033[4~" /* End == Select */
#else
# define KS_HOME "\033[7~" /* Home */
# define KS_END "\033[8~" /* End */
#endif
/*
* ESC-Z processing:
*
* By stealing a sequence to which other xterms respond, and sending the
* same number of characters, but having a distinguishable sequence,
* we can avoid having a timeout (when not under an rxvt) for every login
* shell to auto-set its DISPLAY.
*
* This particular sequence is even explicitly stated as obsolete since
* about 1985, so only very old software is likely to be confused, a
* confusion which can likely be remedied through termcap or TERM. Frankly,
* I doubt anyone will even notice. We provide a #ifdef just in case they
* don't care about auto-display setting. Just in case the ancient
* software in question is broken enough to be case insensitive to the 'c'
* character in the answerback string, we make the distinguishing
* characteristic be capitalization of that character. The length of the
* two strings should be the same so that identical read(2) calls may be
* used.
*/
#define VT100_ANS "\033[?1;2c" /* vt100 answerback */
#ifndef ESCZ_ANSWER
# define ESCZ_ANSWER VT100_ANS /* obsolete ANSI ESC[c */
#endif
/*}}} */
/*{{{ local variables */
static char *ptydev = NULL, *ttydev = NULL; /* pty/tty name */
static int cmd_fd = -1; /* file descriptor connected to the command */
static pid_t cmd_pid = -1; /* process id if child */
static int Xfd = -1; /* file descriptor of X server connection */
static unsigned int num_fds = 0; /* number of file descriptors being used */
static struct stat ttyfd_stat; /* original status of the tty we will use */
#ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
static int scroll_arrow_delay;
#endif
#ifdef META8_OPTION
static unsigned char meta_char = 033; /* Alt-key prefix */
#endif
static unsigned int ModXMask = Mod1Mask;
/* DEC private modes */
#define PrivMode_132 (1LU<<0)
#define PrivMode_132OK (1LU<<1)
#define PrivMode_rVideo (1LU<<2)
#define PrivMode_relOrigin (1LU<<3)
#define PrivMode_Screen (1LU<<4)
#define PrivMode_Autowrap (1LU<<5)
#define PrivMode_aplCUR (1LU<<6)
#define PrivMode_aplKP (1LU<<7)
#define PrivMode_HaveBackSpace (1LU<<8)
#define PrivMode_BackSpace (1LU<<9)
#define PrivMode_ShiftKeys (1LU<<10)
#define PrivMode_VisibleCursor (1LU<<11)
#define PrivMode_MouseX10 (1LU<<12)
#define PrivMode_MouseX11 (1LU<<13)
#define PrivMode_scrollBar (1LU<<14)
#define PrivMode_menuBar (1LU<<15)
#define PrivMode_TtyOutputInh (1LU<<16)
#define PrivMode_Keypress (1LU<<17)
/* too annoying to implement X11 highlight tracking */
/* #define PrivMode_MouseX11Track (1LU<<18) */
#define PrivMode_mouse_report (PrivMode_MouseX10|PrivMode_MouseX11)
#define PrivMode(test,bit) do { \
if (test) PrivateModes |= (bit); else PrivateModes &= ~(bit);} while (0)
#define PrivMode_Default \
(PrivMode_Autowrap|PrivMode_aplKP|PrivMode_ShiftKeys|PrivMode_VisibleCursor)
static unsigned long PrivateModes = PrivMode_Default;
static unsigned long SavedModes = PrivMode_Default;
#undef PrivMode_Default
static int refresh_count = 0, refresh_limit = 1,
refresh_type = SLOW_REFRESH;
static Atom wmDeleteWindow;
/* OffiX Dnd (drag 'n' drop) support */
#ifdef OFFIX_DND
static Atom DndProtocol, DndSelection;
#endif /* OFFIX_DND */
#ifndef NO_XLOCALE
static char *rs_inputMethod = ""; /* XtNinputMethod */
static char *rs_preeditType = NULL; /* XtNpreeditType */
static XIC Input_Context; /* input context */
#endif /* NO_XLOCALE */
/* command input buffering */
#ifndef BUFSIZ
# define BUFSIZ 4096
#endif
static unsigned char cmdbuf_base[BUFSIZ], *cmdbuf_ptr, *cmdbuf_endp;
/*}}} */
/*----------------------------------------------------------------------*/
/*}}} */
/*{{{ substitute system functions */
#ifndef _POSIX_VERSION
# if defined (__svr4__) || defined (__lnx21__)
/* PROTO */
int
getdtablesize(void)
{
struct rlimit rlim;
getrlimit(RLIMIT_NOFILE, &rlim);
return rlim.rlim_cur;
}
# endif
#endif
/*}}} */
/*{{{ take care of suid/sgid super-user (root) privileges */
/* PROTO */
void
privileges(int mode)
{
#ifdef HAVE_SETEUID
static uid_t euid;
static gid_t egid;
switch (mode) {
case IGNORE:
/*
* change effective uid/gid - not real uid/gid - so we can switch
* back to root later, as required
*/
seteuid(getuid());
setegid(getgid());
break;
case SAVE:
euid = geteuid();
egid = getegid();
break;
case RESTORE:
seteuid(euid);
setegid(egid);
break;
}
#else
# ifndef __CYGWIN32__
switch (mode) {
case IGNORE:
setuid(getuid());
setgid(getgid());
break;
case SAVE:
break;
case RESTORE:
break;
}
# endif
#endif
}
/*}}} */
/*{{{ signal handling, exit handler */
/*
* Catch a SIGCHLD signal and exit if the direct child has died
*/
/* ARGSUSED */
/* PROTO */
RETSIGTYPE
Child_signal(int unused)
{
int pid, save_errno = errno;
do {
errno = 0;
}
while ((-1 == (pid = waitpid(-1, NULL, WNOHANG))) &&
(errno == EINTR));
if (pid == cmd_pid)
exit(EXIT_SUCCESS);
errno = save_errno;
signal(SIGCHLD, Child_signal);
}
/*
* Catch a fatal signal and tidy up before quitting
*/
/* PROTO */
RETSIGTYPE
Exit_signal(int sig)
{
#ifdef DEBUG_CMD
print_error("signal %d", sig);
#endif
signal(sig, SIG_DFL);
#ifdef UTMP_SUPPORT
privileges(RESTORE);
cleanutent();
privileges(IGNORE);
#endif
kill(getpid(), sig);
}
/*
* Exit gracefully, clearing the utmp entry and restoring tty attributes
* TODO: this should free up any known resources if we can
*/
/* PROTO */
void
clean_exit(void)
{
#ifdef DEBUG_CMD
fprintf(stderr, "Restoring \"%s\" to mode %03o, uid %d, gid %d\n",
ttydev, ttyfd_stat.st_mode, ttyfd_stat.st_uid, ttyfd_stat.st_gid);
#endif
scr_release();
privileges(RESTORE);
#ifndef __CYGWIN32__
chmod(ttydev, ttyfd_stat.st_mode);
chown(ttydev, ttyfd_stat.st_uid, ttyfd_stat.st_gid);
#endif
#ifdef UTMP_SUPPORT
cleanutent();
#endif
privileges(IGNORE);
}
/*}}} */
/*{{{ Acquire a pseudo-teletype from the system. */
/*
* On failure, returns -1.
* On success, returns the file descriptor.
*
* If successful, ttydev and ptydev point to the names of the
* master and slave parts
*/
/* PROTO */
int
get_pty(void)
{
int fd = -1;
#if defined (__sgi)
ptydev = ttydev = _getpty(&fd, O_RDWR | O_NDELAY, 0622, 0);
if (ptydev == NULL)
goto Failed;
#elif defined (__svr4__) || defined(__CYGWIN32__) || defined(__lnx21__)
{
extern char *ptsname();
/* open the STREAMS, clone device /dev/ptmx (master pty) */
#ifdef HAVE_GETPT
if ((fd = getpt()) < 0) {
#else
if ((fd = open("/dev/ptmx", O_RDWR)) < 0) {
#endif
goto Failed;
} else {
grantpt(fd); /* change slave permissions */
unlockpt(fd); /* unlock slave */
ptydev = ttydev = ptsname(fd); /* get slave's name */
goto Found;
}
}
#elif defined (_AIX)
if ((fd = open("/dev/ptc", O_RDWR)) < 0)
goto Failed;
else
ptydev = ttydev = ttyname(fd);
#elif defined(ALL_NUMERIC_PTYS) /* SCO OSr5 */
static char pty_name[] = "/dev/ptyp??\0\0\0";
static char tty_name[] = "/dev/ttyp??\0\0\0";
int len = strlen(tty_name);
char *c1, *c2;
int idx;
ptydev = pty_name;
ttydev = tty_name;
for (idx = 0; idx < 256; idx++) {
sprintf(ptydev, "%s%d", "/dev/ptyp", idx);
sprintf(ttydev, "%s%d", "/dev/ttyp", idx);
if (access(ttydev, F_OK) < 0) {
idx = 256;
break;
}
if ((fd = open(ptydev, O_RDWR)) >= 0) {
if (access(ttydev, R_OK | W_OK) == 0)
goto Found;
close(fd);
}
}
goto Failed;
#else
static char pty_name[] = "/dev/pty??";
static char tty_name[] = "/dev/tty??";
int len = strlen(tty_name);
char *c1, *c2;
ptydev = pty_name;
ttydev = tty_name;
# define PTYCHAR1 "pqrstuvwxyz"
# define PTYCHAR2 "0123456789abcdef"
for (c1 = PTYCHAR1; *c1; c1++) {
ptydev[len - 2] = ttydev[len - 2] = *c1;
for (c2 = PTYCHAR2; *c2; c2++) {
ptydev[len - 1] = ttydev[len - 1] = *c2;
if ((fd = open(ptydev, O_RDWR)) >= 0) {
if (access(ttydev, R_OK | W_OK) == 0)
goto Found;
close(fd);
}
}
}
goto Failed;
#endif
Found:
fcntl(fd, F_SETFL, O_NDELAY);
return fd;
Failed:
print_error("can't open pseudo-tty");
return -1;
}
/*}}} */
/*{{{ establish a controlling teletype for new session */
/*
* On some systems this can be done with ioctl() but on others we
* need to re-open the slave tty.
*/
/* PROTO */
int
get_tty(void)
{
int fd;
pid_t pid;
/*
* setsid() [or setpgrp] must be before open of the terminal,
* otherwise there is no controlling terminal (Solaris 2.4, HP-UX 9)
*/
#ifndef ultrix
# ifdef NO_SETSID
pid = setpgrp(0, 0);
# else
pid = setsid();
# endif
if (pid < 0)
perror(rs_name);
# ifdef DEBUG_TTYMODE
print_error("(%s: line %d): PID = %d\n", __FILE__, __LINE__, pid);
# endif
#endif /* ultrix */
if ((fd = open(ttydev, O_RDWR)) < 0) {
print_error("can't open slave tty %s", ttydev);
exit(EXIT_FAILURE);
}
#if defined (__svr4__) || defined (__lnx21__)
/*
* Push STREAMS modules:
* ptem: pseudo-terminal hardware emulation module.
* ldterm: standard terminal line discipline.
* ttcompat: V7, 4BSD and XENIX STREAMS compatibility module.
*/
ioctl(fd, I_PUSH, "ptem");
ioctl(fd, I_PUSH, "ldterm");
ioctl(fd, I_PUSH, "ttcompat");
#else /* __svr4__ */
{
/* change ownership of tty to real uid and real group */
#ifndef __CYGWIN32__
unsigned int mode = 0622;
gid_t gid = getgid();
# ifdef TTY_GID_SUPPORT
{
struct group *gr = getgrnam("tty");
if (gr) {
/* change ownership of tty to real uid, "tty" gid */
gid = gr->gr_gid;
mode = 0620;
}
}
# endif /* TTY_GID_SUPPORT */
#endif
privileges(RESTORE);
#ifndef __CYGWIN32__
fchown(fd, getuid(), gid); /* fail silently */
fchmod(fd, mode);
#endif
privileges(IGNORE);
}
#endif /* __svr4__ */
/*
* Close all file descriptors. If only stdin/out/err are closed,
* child processes remain alive upon deletion of the window.
*/
{
int i;
for (i = 0; i < num_fds; i++)
if (i != fd)
close(i);
}
/* Reopen stdin, stdout and stderr over the tty file descriptor */
dup(fd); /* 0: stdin */
dup(fd); /* 1: stdout */
dup(fd); /* 2: stderr */
if (fd > 2)
close(fd);
#ifdef ultrix
if ((fd = open("/dev/tty", O_RDONLY)) >= 0) {
ioctl(fd, TIOCNOTTY, 0);
close(fd);
} else {
pid = setpgrp(0, 0);
if (pid < 0)
perror(rs_name);
}
/* no error, we could run with no tty to begin with */
#else /* ultrix */
# ifdef TIOCSCTTY
ioctl(0, TIOCSCTTY, 0);
# endif
/* set process group */
# if defined (_POSIX_VERSION) || defined (__svr4__)
tcsetpgrp(0, pid);
# elif defined (TIOCSPGRP)
ioctl(0, TIOCSPGRP, &pid);
# endif
/* svr4 problems: reports no tty, no job control */
/* # if !defined (__svr4__) && defined (TIOCSPGRP) */
close(open(ttydev, O_RDWR, 0));
/* # endif */
#endif /* ultrix */
privileges(IGNORE);
return fd;
}
/*}}} */
/*{{{ debug_ttymode() */
#ifdef DEBUG_TTYMODE
/* PROTO */
void
debug_ttymode(ttymode_t * ttymode)
{
# ifdef HAVE_TERMIOS_H
/* c_iflag bits */
fprintf(stderr, "Input flags\n");
/* cpp token stringize doesn't work on all machines <sigh> */
# define FOO(flag,name) \
if ((ttymode->c_iflag) & flag) \
fprintf (stderr, "%s ", name)
/* c_iflag bits */
FOO(IGNBRK, "IGNBRK");
FOO(BRKINT, "BRKINT");
FOO(IGNPAR, "IGNPAR");
FOO(PARMRK, "PARMRK");
FOO(INPCK, "INPCK");
FOO(ISTRIP, "ISTRIP");
FOO(INLCR, "INLCR");
FOO(IGNCR, "IGNCR");
FOO(ICRNL, "ICRNL");
FOO(IXON, "IXON");
FOO(IXOFF, "IXOFF");
# ifdef IUCLC
FOO(IUCLC, "IUCLC");
# endif
# ifdef IXANY
FOO(IXANY, "IXANY");
# endif
# ifdef IMAXBEL
FOO(IMAXBEL, "IMAXBEL");
# endif
fprintf(stderr, "\n\n");
# undef FOO
# define FOO(entry, name) \
fprintf (stderr, "%s = %#3o\n", name, ttymode->c_cc [entry])
FOO(VINTR, "VINTR");
FOO(VQUIT, "VQUIT");
FOO(VERASE, "VERASE");
FOO(VKILL, "VKILL");
FOO(VEOF, "VEOF");
FOO(VEOL, "VEOL");
# ifdef VEOL2
FOO(VEOL2, "VEOL2");
# endif
# ifdef VSWTC
FOO(VSWTC, "VSWTC");
# endif
# ifdef VSWTCH
FOO(VSWTCH, "VSWTCH");
# endif
FOO(VSTART, "VSTART");
FOO(VSTOP, "VSTOP");
FOO(VSUSP, "VSUSP");
# ifdef VDSUSP
FOO(VDSUSP, "VDSUSP");
# endif
# ifdef VREPRINT
FOO(VREPRINT, "VREPRINT");
# endif
# ifdef VDISCRD
FOO(VDISCRD, "VDISCRD");
# endif
# ifdef VWERSE
FOO(VWERSE, "VWERSE");
# endif
# ifdef VLNEXT
FOO(VLNEXT, "VLNEXT");
# endif
fprintf(stderr, "\n\n");
# undef FOO
# endif /* HAVE_TERMIOS_H */
}
#endif /* DEBUG_TTYMODE */
/*}}} */
/*{{{ get_ttymode() */
/* PROTO */
void
get_ttymode(ttymode_t * tio)
{
#ifdef HAVE_TERMIOS_H
/*
* standard System V termios interface
*/
if (GET_TERMIOS(0, tio) < 0) {
/* return error - use system defaults */
tio->c_cc[VINTR] = CINTR;
tio->c_cc[VQUIT] = CQUIT;
tio->c_cc[VERASE] = CERASE;
tio->c_cc[VKILL] = CKILL;
tio->c_cc[VSTART] = CSTART;
tio->c_cc[VSTOP] = CSTOP;
tio->c_cc[VSUSP] = CSUSP;
# ifdef VDSUSP
tio->c_cc[VDSUSP] = CDSUSP;
# endif
# ifdef VREPRINT
tio->c_cc[VREPRINT] = CRPRNT;
# endif
# ifdef VDISCRD
tio->c_cc[VDISCRD] = CFLUSH;
# endif
# ifdef VWERSE
tio->c_cc[VWERSE] = CWERASE;
# endif
# ifdef VLNEXT
tio->c_cc[VLNEXT] = CLNEXT;
# endif
}
tio->c_cc[VEOF] = CEOF;
tio->c_cc[VEOL] = VDISABLE;
# ifdef VEOL2
tio->c_cc[VEOL2] = VDISABLE;
# endif
# ifdef VSWTC
tio->c_cc[VSWTC] = VDISABLE;
# endif
# ifdef VSWTCH
tio->c_cc[VSWTCH] = VDISABLE;
# endif
# if VMIN != VEOF
tio->c_cc[VMIN] = 1;
# endif
# if VTIME != VEOL
tio->c_cc[VTIME] = 0;
# endif
/* input modes */
tio->c_iflag = (BRKINT | IGNPAR | ICRNL | IXON
# ifdef IMAXBEL
| IMAXBEL
# endif
);
/* output modes */
tio->c_oflag = (OPOST | ONLCR);
/* control modes */
tio->c_cflag = (CS8 | CREAD);
/* line discipline modes */
tio->c_lflag = (ISIG | ICANON | IEXTEN | ECHO | ECHOE | ECHOK
# if defined (ECHOCTL) && defined (ECHOKE)
| ECHOCTL | ECHOKE
# endif
);
#if 0
/*
* guess an appropriate value for Backspace
*/
# ifdef FORCE_BACKSPACE
PrivMode(1, PrivMode_BackSpace);
# elif defined (FORCE_DELETE)
PrivMode(0, PrivMode_BackSpace);
# else
PrivMode((tio->c_cc[VERASE] == '\b'), PrivMode_BackSpace);
# endif
#endif /* if 0 */
#else /* HAVE_TERMIOS_H */
/*
* sgtty interface
*/
/* get parameters -- gtty */
if (ioctl(0, TIOCGETP, &(tio->sg)) < 0) {
tio->sg.sg_erase = CERASE; /* ^H */
tio->sg.sg_kill = CKILL; /* ^U */
}
tio->sg.sg_flags = (CRMOD | ECHO | EVENP | ODDP);
/* get special characters */
if (ioctl(0, TIOCGETC, &(tio->tc)) < 0) {
tio->tc.t_intrc = CINTR; /* ^C */
tio->tc.t_quitc = CQUIT; /* ^\ */
tio->tc.t_startc = CSTART; /* ^Q */
tio->tc.t_stopc = CSTOP; /* ^S */
tio->tc.t_eofc = CEOF; /* ^D */
tio->tc.t_brkc = -1;
}
/* get local special chars */
if (ioctl(0, TIOCGLTC, &(tio->lc)) < 0) {
tio->lc.t_suspc = CSUSP; /* ^Z */
tio->lc.t_dsuspc = CDSUSP; /* ^Y */
tio->lc.t_rprntc = CRPRNT; /* ^R */
tio->lc.t_flushc = CFLUSH; /* ^O */
tio->lc.t_werasc = CWERASE; /* ^W */
tio->lc.t_lnextc = CLNEXT; /* ^V */
}
/* get line discipline */
ioctl(0, TIOCGETD, &(tio->line));
# ifdef NTTYDISC
tio->line = NTTYDISC;
# endif /* NTTYDISC */
tio->local = (LCRTBS | LCRTERA | LCTLECH | LPASS8 | LCRTKIL);
/*
* guess an appropriate value for Backspace
*/
#if 0
# ifdef FORCE_BACKSPACE
PrivMode(1, PrivMode_BackSpace);
# elif defined (FORCE_DELETE)
PrivMode(0, PrivMode_BackSpace);
# else
PrivMode((tio->sg.sg_erase == '\b'), PrivMode_BackSpace);
# endif
#endif /* if 0 */
#endif /* HAVE_TERMIOS_H */
}
/*}}} */
/*{{{ run_command() */
/*
* Run the command in a subprocess and return a file descriptor for the
* master end of the pseudo-teletype pair with the command talking to
* the slave.
*/
/* PROTO */
int
run_command(char *argv[])
{
ttymode_t tio;
int ptyfd;
ptyfd = get_pty();
if (ptyfd < 0)
return -1;
/* store original tty status for restoration clean_exit() -- rgg 04/12/95 */
lstat(ttydev, &ttyfd_stat);
#ifdef DEBUG_CMD
fprintf(stderr, "Original settings of %s are mode %o, uid %d, gid %d\n",
ttydev, ttyfd_stat.st_mode, ttyfd_stat.st_uid, ttyfd_stat.st_gid);
#endif
/* install exit handler for cleanup */
#ifdef HAVE_ATEXIT
atexit(clean_exit);
#else
# if defined (__sun__)
on_exit(clean_exit, NULL); /* non-ANSI exit handler */
# else
# ifdef UTMP_SUPPORT
print_error("no atexit(), UTMP entries may not be cleaned");
# endif
# endif
#endif
/*
* get tty settings before fork()
* and make a reasonable guess at the value for BackSpace
*/
get_ttymode(&tio);
#if 0
/* add Backspace value */
SavedModes |= (PrivateModes & PrivMode_BackSpace);
#endif
/* add value for scrollBar */
if (scrollbar_visible()) {
PrivateModes |= PrivMode_scrollBar;
SavedModes |= PrivMode_scrollBar;
}
if (menubar_visible()) {
PrivateModes |= PrivMode_menuBar;
SavedModes |= PrivMode_menuBar;
}
#ifdef DEBUG_TTYMODE
debug_ttymode(&tio);
#endif
/* spin off the command interpreter */
signal(SIGHUP, Exit_signal);
#ifndef __svr4__
signal(SIGINT, Exit_signal);
#endif
signal(SIGQUIT, Exit_signal);
signal(SIGTERM, Exit_signal);
signal(SIGCHLD, Child_signal);
tt_winsize(ptyfd); /* set window size */
/* need to trap SIGURG for SVR4 (Unixware) rlogin */
/* signal (SIGURG, SIG_DFL); */
cmd_pid = fork();
if (cmd_pid < 0) {
print_error("can't fork");
return -1;
}
if (cmd_pid == 0) { /* child */
/* signal (SIGHUP, Exit_signal); */
/* signal (SIGINT, Exit_signal); */
#ifdef HAVE_UNSETENV
/* avoid passing old settings and confusing term size */
unsetenv("LINES");
unsetenv("COLUMNS");
/* avoid passing termcap since terminfo should be okay */
unsetenv("TERMCAP");
#endif /* HAVE_UNSETENV */
/* establish a controlling teletype for the new session */
get_tty();
/* initialize terminal attributes */
SET_TTYMODE(0, &tio);
/* become virtual console, fail silently */
if (Options & Opt_console) {
#ifdef TIOCCONS
unsigned int on = 1;
ioctl(0, TIOCCONS, &on);
#elif defined (SRIOCSREDIR)
int fd = open(CONSOLE, O_WRONLY);
if (fd < 0 || ioctl(fd, SRIOCSREDIR, 0) < 0) {
if (fd >= 0)
close(fd);
}
#endif /* SRIOCSREDIR */
}
/* reset signals and spin off the command interpreter */
signal(SIGINT, SIG_DFL);
signal(SIGQUIT, SIG_DFL);
signal(SIGCHLD, SIG_DFL);
/*
* mimick login's behavior by disabling the job control signals
* a shell that wants them can turn them back on
*/
#ifdef SIGTSTP
signal(SIGTSTP, SIG_IGN);
signal(SIGTTIN, SIG_IGN);
signal(SIGTTOU, SIG_IGN);
#endif /* SIGTSTP */
#ifdef __CYGWIN__
/* cygwin does not close files properly */
if( Xfd > 0 )
close(Xfd);
#endif
/* command interpreter path */
if (argv != NULL) {
#ifdef DEBUG_CMD
int i;
for (i = 0; argv[i]; i++)
fprintf(stderr, "argv [%d] = \"%s\"\n", i, argv[i]);
#endif
execvp(argv[0], argv);
print_error("can't execute \"%s\"", argv[0]);
} else {
const char *argv0, *shell;
if ((shell = getenv("SHELL")) == NULL || *shell == '\0')
shell = DEFAULT_SHELL;
argv0 = my_basename(shell);
if (Options & Opt_loginShell) {
char *p = MALLOC((strlen(argv0) + 2) * sizeof(char));
p[0] = '-';
STRCPY(&p[1], argv0);
argv0 = p;
}
execlp(shell, argv0, NULL);
print_error("can't execute \"%s\"", shell);
}
exit(EXIT_FAILURE);
}
#ifdef UTMP_SUPPORT
privileges(RESTORE);
if (!(Options & Opt_utmpInhibit))
makeutent(ttydev, display_name); /* stamp /etc/utmp */
privileges(IGNORE);
#endif
return ptyfd;
}
/*}}} */
/*
* Probe the modifier keymap to get the Meta (Alt) and Num_Lock settings
*/
/* INTPROTO */
void
get_ourmods(void)
{
int i, j, k;
int got_meta, got_numlock;
XModifierKeymap *map;
KeyCode *kc;
unsigned int modmasks[] =
{Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask};
got_meta = got_numlock = 0;
map = XGetModifierMapping(Xdisplay);
kc = map->modifiermap;
for (i = 3; i < 8; i++) {
k = i * map->max_keypermod;
for (j = 0; j < map->max_keypermod; j++, k++) {
if (kc[k] == 0)
break;
switch (XKeycodeToKeysym(Xdisplay, kc[k], 0)) {
case XK_Num_Lock:
if (!got_numlock) {
ModNumLockMask = modmasks[i - 3];
got_numlock = 1;
}
break;
case XK_Meta_L:
case XK_Meta_R:
case XK_Alt_L:
case XK_Alt_R:
if (!got_meta) {
ModMetaMask = modmasks[i - 3];
got_meta = 1;
}
break;
}
}
if (got_meta && got_numlock)
break;
}
XFreeModifiermap(map);
}
/*{{{ init_command() */
/* PROTO */
void
init_command(char *argv[])
{
/*
* Initialize the command connection.
* This should be called after the X server connection is established.
*/
/* Enable delete window protocol */
wmDeleteWindow = XInternAtom(Xdisplay, "WM_DELETE_WINDOW", False);
XSetWMProtocols(Xdisplay, TermWin.parent, &wmDeleteWindow, 1);
#ifdef OFFIX_DND
/* Enable OffiX Dnd (drag 'n' drop) protocol */
DndProtocol = XInternAtom(Xdisplay, "DndProtocol", False);
DndSelection = XInternAtom(Xdisplay, "DndSelection", False);
#endif /* OFFIX_DND */
init_xlocale();
/* get number of available file descriptors */
#ifdef _POSIX_VERSION
num_fds = sysconf(_SC_OPEN_MAX);
#else
num_fds = getdtablesize();
#endif
#ifdef META8_OPTION
meta_char = (Options & Opt_meta8 ? 0x80 : 033);
if (rs_modifier
&& strlen(rs_modifier) == 4
&& toupper(*rs_modifier) == 'M'
&& toupper(rs_modifier[1]) == 'O'
&& toupper(rs_modifier[2]) == 'D')
switch (rs_modifier[3]) {
case '2':
ModXMask = Mod2Mask;
break;
case '3':
ModXMask = Mod3Mask;
break;
case '4':
ModXMask = Mod4Mask;
break;
case '5':
ModXMask = Mod5Mask;
break;
default:
ModXMask = Mod1Mask;
}
#endif
get_ourmods();
if (!(Options & Opt_scrollTtyOutput))
PrivateModes |= PrivMode_TtyOutputInh;
if (Options & Opt_scrollKeypress)
PrivateModes |= PrivMode_Keypress;
#ifndef NO_BACKSPACE_KEY
if (strcmp(rs_backspace_key, "DEC") == 0)
PrivateModes |= PrivMode_HaveBackSpace;
#endif
#ifdef GREEK_SUPPORT
greek_init();
#endif
Xfd = XConnectionNumber(Xdisplay);
/*fprintf( stderr, "%s:%d display = %p, Xfd = %d\n\n", __FUNCTION__, __LINE__, Xdisplay, Xfd ); */
/* sleep(10); */
cmdbuf_ptr = cmdbuf_endp = cmdbuf_base;
if ((cmd_fd = run_command(argv)) < 0) {
print_error("aborting");
exit(EXIT_FAILURE);
}
}
/*}}} */
/*{{{ Xlocale */
/*
* This is more or less stolen straight from XFree86 xterm.
* This should support all European type languages.
*/
/* PROTO */
void
init_xlocale(void)
{
#ifndef NO_XLOCALE
char *p, *s, buf[32], tmp[1024];
XIM xim = NULL;
XIMStyle input_style = 0;
XIMStyles *xim_styles = NULL;
int found;
Input_Context = NULL;
# ifndef NO_SETLOCALE
/* setlocale(LC_CTYPE, ""); */ /* XXX: should we do this? */
# endif
if (rs_inputMethod == NULL || !*rs_inputMethod) {
if ((p = XSetLocaleModifiers("")) != NULL && *p)
xim = XOpenIM(Xdisplay, NULL, NULL, NULL);
} else {
STRCPY(tmp, rs_inputMethod);
for (s = tmp; *s; s++) {
char *end, *next_s;
for (; *s && isspace(*s); s++)
/* */ ;
if (!*s)
break;
for (end = s; (*end && (*end != ',')); end++)
/* */ ;
for (next_s = end--; ((end >= s) && isspace(*end)); end--)
/* */ ;
*++end = '\0';
if (*s) {
STRCPY(buf, "@im=");
strcat(buf, s);
if ((p = XSetLocaleModifiers(buf)) != NULL && *p &&
(xim = XOpenIM(Xdisplay, NULL, NULL, NULL)) != NULL)
break;
}
if (!*(s = next_s))
break;
}
}
if (xim == NULL && (p = XSetLocaleModifiers("@im=none")) != NULL && *p)
xim = XOpenIM(Xdisplay, NULL, NULL, NULL);
if (xim == NULL) {
print_error("Failed to open input method");
return;
}
if (XGetIMValues(xim, XNQueryInputStyle, &xim_styles, NULL) || !xim_styles) {
print_error("input method doesn't support any style");
XCloseIM(xim);
return;
}
STRCPY(tmp, (rs_preeditType ? rs_preeditType : "Root"));
for (found = 0, s = tmp; *s && !found; ) {
unsigned short i;
char *end, *next_s;
for (; *s && isspace(*s); s++)
/* */ ;
if (!*s)
break;
for (end = s; (*end && (*end != ',')); end++)
/* */ ;
for (next_s = end--; ((end >= s) && isspace(*end));)
*end-- = 0;
if (!strcmp(s, "OverTheSpot"))
input_style = (XIMPreeditPosition | XIMStatusArea);
else if (!strcmp(s, "OffTheSpot"))
input_style = (XIMPreeditArea | XIMStatusArea);
else if (!strcmp(s, "Root"))
input_style = (XIMPreeditNothing | XIMStatusNothing);
for (i = 0; i < xim_styles->count_styles; i++)
if (input_style == xim_styles->supported_styles[i]) {
found = 1;
break;
}
s = next_s;
}
XFree(xim_styles);
if (found == 0) {
print_error("input method doesn't support my preedit type");
XCloseIM(xim);
return;
}
/*
* This program only understands the Root preedit_style yet
* Then misc.preedit_type should default to:
* "OverTheSpot,OffTheSpot,Root"
* /MaF
*/
if (input_style != (XIMPreeditNothing | XIMStatusNothing)) {
print_error("This program only supports the \"Root\" preedit type");
XCloseIM(xim);
return;
}
Input_Context = XCreateIC(xim, XNInputStyle, input_style,
XNClientWindow, TermWin.parent,
XNFocusWindow, TermWin.parent,
NULL);
if (Input_Context == NULL) {
print_error("Failed to create input context");
XCloseIM(xim);
}
#endif /* NO_XLOCALE */
}
/*}}} */
/*{{{ window resizing */
/*
* Tell the teletype handler what size the window is.
* Called after a window size change.
*/
/* PROTO */
void
tt_winsize(int fd)
{
struct winsize ws;
if (fd < 0)
return;
ws.ws_col = (unsigned short)TermWin.ncol;
ws.ws_row = (unsigned short)TermWin.nrow;
#ifndef __CYGWIN32__
ws.ws_xpixel = ws.ws_ypixel = 0;
#endif
ioctl(fd, TIOCSWINSZ, &ws);
}
/* PROTO */
void
tt_resize(void)
{
tt_winsize(cmd_fd);
}
/*}}} */
/*{{{ Convert the keypress event into a string */
/* PROTO */
void
lookup_key(XEvent * ev)
{
static int numlock_state = 0;
#ifdef DEBUG_CMD
static int debug_key = 1; /* accessible by a debugger only */
#endif
#ifdef GREEK_SUPPORT
static short greek_mode = 0;
#endif
static XComposeStatus compose =
{NULL, 0};
static unsigned char kbuf[KBUFSZ];
int ctrl, meta, shft, len;
KeySym keysym = 0;
/*
* use Num_Lock to toggle Keypad on/off. If Num_Lock is off, allow an
* escape sequence to toggle the Keypad.
*
* Always permit `shift' to override the current setting
*/
shft = (ev->xkey.state & ShiftMask);
ctrl = (ev->xkey.state & ControlMask);
meta = (ev->xkey.state & ModXMask);
if (numlock_state || (ev->xkey.state & ModNumLockMask)) {
numlock_state = (ev->xkey.state & ModNumLockMask); /* numlock toggle */
PrivMode((!numlock_state), PrivMode_aplKP);
}
#ifndef NO_XLOCALE
if (!XFilterEvent(ev, *(&ev->xkey.window))) {
if (Input_Context != NULL) {
Status status_return;
len = XmbLookupString(Input_Context, &ev->xkey, kbuf,
sizeof(kbuf), &keysym,
&status_return);
} else {
len = XLookupString(&ev->xkey, kbuf,
sizeof(kbuf), &keysym,
&compose);
}
} else
len = 0;
#else /* NO_XLOCALE */
len = XLookupString(&ev->xkey, (char *) kbuf, sizeof(kbuf), &keysym, &compose);
/*
* have unmapped Latin[2-4] entries -> Latin1
* good for installations with correct fonts, but without XLOCAL
*/
if (!len && (keysym >= 0x0100) && (keysym < 0x0400)) {
len = 1;
kbuf[0] = (keysym & 0xFF);
}
#endif /* NO_XLOCALE */
if (len && (Options & Opt_scrollKeypress))
TermWin.view_start = 0;
/* for some backwards compatibility */
#if defined (HOTKEY_CTRL) || defined (HOTKEY_META)
# ifdef HOTKEY_CTRL
# define HOTKEY ctrl
# else
# ifdef HOTKEY_META
# define HOTKEY meta
# endif
# endif
if (HOTKEY) {
if (keysym == ks_bigfont) {
change_font(0, FONT_UP);
return;
} else if (keysym == ks_smallfont) {
change_font(0, FONT_DN);
return;
}
}
# undef HOTKEY
#endif
if (shft) {
/* Shift + F1 - F10 generates F11 - F20 */
if (keysym >= XK_F1 && keysym <= XK_F10) {
keysym += (XK_F11 - XK_F1);
shft = 0; /* turn off Shift */
} else if (!ctrl && !meta && (PrivateModes & PrivMode_ShiftKeys)) {
int lnsppg = TermWin.nrow * 4 / 5;
#ifdef PAGING_CONTEXT_LINES
lnsppg = TermWin.nrow - PAGING_CONTEXT_LINES;
#endif
switch (keysym) {
/* normal XTerm key bindings */
case XK_Prior: /* Shift+Prior = scroll back */
if (TermWin.saveLines) {
scr_page(UP, lnsppg);
return;
}
break;
case XK_Up: /* Shift+XK_Up = scroll up one line */
if (TermWin.saveLines) {
scr_page(UP, 1);
return;
}
break;
case XK_Down: /* Shift+XK_Down = scroll down one line */
if (TermWin.saveLines) {
scr_page(DN, 1);
return;
}
break;
case XK_Next: /* Shift+Next = scroll forward */
if (TermWin.saveLines) {
scr_page(DN, lnsppg);
return;
}
break;
case XK_Insert: /* Shift+Insert = paste mouse selection */
selection_request(ev->xkey.time, ev->xkey.x, ev->xkey.y);
return;
break;
/* rxvt extras */
case XK_KP_Add: /* Shift+KP_Add = bigger font */
change_font(0, FONT_UP);
return;
break;
case XK_KP_Subtract: /* Shift+KP_Subtract = smaller font */
change_font(0, FONT_DN);
return;
break;
}
}
}
#ifdef UNSHIFTED_SCROLLKEYS
else if (!ctrl && !meta) {
switch (keysym) {
case XK_Prior:
if (TermWin.saveLines) {
scr_page(UP, TermWin.nrow * 4 / 5);
return;
}
break;
case XK_Next:
if (TermWin.saveLines) {
scr_page(DN, TermWin.nrow * 4 / 5);
return;
}
break;
}
}
#endif
switch (keysym) {
case XK_Print:
#ifdef PRINTPIPE
scr_printscreen(ctrl | shft);
return;
#endif
break;
case XK_Mode_switch:
#ifdef GREEK_SUPPORT
greek_mode = !greek_mode;
if (greek_mode) {
xterm_seq(XTerm_title, (greek_getmode() == GREEK_ELOT928 ?
"[Greek: iso]" : "[Greek: ibm]"));
greek_reset();
} else
xterm_seq(XTerm_title, APL_NAME "-" VERSION);
return;
#endif
break;
}
if (keysym >= 0xFF00 && keysym <= 0xFFFF) {
#ifdef KEYSYM_RESOURCE
if (!(shft | ctrl) && KeySym_map[keysym - 0xFF00] != NULL) {
const unsigned char *kbuf;
unsigned int len;
kbuf = (KeySym_map[keysym - 0xFF00]);
len = *kbuf++;
/* escape prefix */
if (meta
# ifdef META8_OPTION
&& (meta_char == 033)
# endif
) {
const unsigned char ch = '\033';
tt_write(&ch, 1);
}
tt_write(kbuf, len);
return;
} else
#endif
switch (keysym) {
#ifndef NO_BACKSPACE_KEY
case XK_BackSpace:
if (PrivateModes & PrivMode_HaveBackSpace) {
len = 1;
kbuf[0] = (((PrivateModes & PrivMode_BackSpace) ?
!(shft | ctrl) : (shft | ctrl)) ? '\b' : '\177');
} else
len = strlen(STRCPY(kbuf, rs_backspace_key));
break;
#endif
#ifndef NO_DELETE_KEY
case XK_Delete:
len = strlen(STRCPY(kbuf, rs_delete_key));
break;
#endif
case XK_Tab:
if (shft) {
len = 3;
STRCPY(kbuf, "\033[Z");
}
break;
#ifdef XK_KP_Home
case XK_KP_Home:
/* allow shift to override */
if ((PrivateModes & PrivMode_aplKP) ? !shft : shft) {
len = 3;
STRCPY(kbuf, "\033Ow");
break;
}
/* -> else FALL THROUGH */
#endif
case XK_Home:
len = strlen(STRCPY(kbuf, KS_HOME));
break;
#ifdef XK_KP_Left
case XK_KP_Left: /* \033Ot or standard */
case XK_KP_Up: /* \033Ox or standard */
case XK_KP_Right: /* \033Ov or standard */
case XK_KP_Down: /* \033Or or standard */
if ((PrivateModes & PrivMode_aplKP) ? !shft : shft) {
len = 3;
STRCPY(kbuf, "\033OZ");
kbuf[2] = ("txvr"[keysym - XK_KP_Left]);
break;
} else {
/* translate to std. cursor key */
keysym = XK_Left + (keysym - XK_KP_Left);
}
/* FALL THROUGH */
#endif
case XK_Left: /* "\033[D" */
case XK_Up: /* "\033[A" */
case XK_Right: /* "\033[C" */
case XK_Down: /* "\033[B" */
len = 3;
STRCPY(kbuf, "\033[@");
kbuf[2] = ("DACB"[keysym - XK_Left]);
/* do Shift first */
if (shft) {
kbuf[2] = ("dacb"[keysym - XK_Left]);
} else if (ctrl) {
kbuf[1] = 'O';
kbuf[2] = ("dacb"[keysym - XK_Left]);
} else if (PrivateModes & PrivMode_aplCUR) {
kbuf[1] = 'O';
}
break;
#ifndef UNSHIFTED_SCROLLKEYS
# ifdef XK_KP_Prior
case XK_KP_Prior:
/* allow shift to override */
if ((PrivateModes & PrivMode_aplKP) ? !shft : shft) {
len = 3;
STRCPY(kbuf, "\033Oy");
break;
}
/* -> else FALL THROUGH */
# endif
case XK_Prior:
len = 4;
STRCPY(kbuf, "\033[5~");
break;
# ifdef XK_KP_Next
case XK_KP_Next:
/* allow shift to override */
if ((PrivateModes & PrivMode_aplKP) ? !shft : shft) {
len = 3;
STRCPY(kbuf, "\033Os");
break;
}
/* -> else FALL THROUGH */
# endif
case XK_Next:
len = 4;
STRCPY(kbuf, "\033[6~");
break;
#endif
#ifdef XK_KP_End
case XK_KP_End:
/* allow shift to override */
if ((PrivateModes & PrivMode_aplKP) ? !shft : shft) {
len = 3;
STRCPY(kbuf, "\033Oq");
break;
}
/* -> else FALL THROUGH */
#endif
case XK_End:
len = strlen(STRCPY(kbuf, KS_END));
break;
case XK_Select:
len = 4;
STRCPY(kbuf, "\033[4~");
break;
#ifdef DXK_Remove /* support for DEC remove like key */
case DXK_Remove: /* drop */
#endif
case XK_Execute:
len = 4;
STRCPY(kbuf, "\033[3~");
break;
case XK_Insert:
len = 4;
STRCPY(kbuf, "\033[2~");
break;
case XK_Menu:
len = 5;
STRCPY(kbuf, "\033[29~");
break;
case XK_Find:
len = 4;
STRCPY(kbuf, "\033[1~");
break;
case XK_Help:
len = 5;
STRCPY(kbuf, "\033[28~");
break;
case XK_KP_Enter:
/* allow shift to override */
if ((PrivateModes & PrivMode_aplKP) ? !shft : shft) {
len = 3;
STRCPY(kbuf, "\033OM");
} else {
len = 1;
kbuf[0] = '\r';
}
break;
#ifdef XK_KP_Begin
case XK_KP_Begin:
len = 3;
STRCPY(kbuf, "\033Ou");
break;
case XK_KP_Insert:
len = 3;
STRCPY(kbuf, "\033Op");
break;
case XK_KP_Delete:
len = 3;
STRCPY(kbuf, "\033On");
break;
#endif
case XK_KP_F1: /* "\033OP" */
case XK_KP_F2: /* "\033OQ" */
case XK_KP_F3: /* "\033OR" */
case XK_KP_F4: /* "\033OS" */
len = 3;
STRCPY(kbuf, "\033OP");
kbuf[2] += (keysym - XK_KP_F1);
break;
case XK_KP_Multiply: /* "\033Oj" : "*" */
case XK_KP_Add: /* "\033Ok" : "+" */
case XK_KP_Separator: /* "\033Ol" : "," */
case XK_KP_Subtract: /* "\033Om" : "-" */
case XK_KP_Decimal: /* "\033On" : "." */
case XK_KP_Divide: /* "\033Oo" : "/" */
case XK_KP_0: /* "\033Op" : "0" */
case XK_KP_1: /* "\033Oq" : "1" */
case XK_KP_2: /* "\033Or" : "2" */
case XK_KP_3: /* "\033Os" : "3" */
case XK_KP_4: /* "\033Ot" : "4" */
case XK_KP_5: /* "\033Ou" : "5" */
case XK_KP_6: /* "\033Ov" : "6" */
case XK_KP_7: /* "\033Ow" : "7" */
case XK_KP_8: /* "\033Ox" : "8" */
case XK_KP_9: /* "\033Oy" : "9" */
/* allow shift to override */
if ((PrivateModes & PrivMode_aplKP) ? !shft : shft) {
len = 3;
STRCPY(kbuf, "\033Oj");
kbuf[2] += (keysym - XK_KP_Multiply);
} else {
len = 1;
kbuf[0] = ('*' + (keysym - XK_KP_Multiply));
}
break;
#define FKEY(n, fkey) \
len = 5; \
sprintf((char *) kbuf,"\033[%02d~", (int)((n) + (keysym - fkey)))
case XK_F1: /* "\033[11~" */
case XK_F2: /* "\033[12~" */
case XK_F3: /* "\033[13~" */
case XK_F4: /* "\033[14~" */
case XK_F5: /* "\033[15~" */
FKEY(11, XK_F1);
break;
case XK_F6: /* "\033[17~" */
case XK_F7: /* "\033[18~" */
case XK_F8: /* "\033[19~" */
case XK_F9: /* "\033[20~" */
case XK_F10: /* "\033[21~" */
FKEY(17, XK_F6);
break;
case XK_F11: /* "\033[23~" */
case XK_F12: /* "\033[24~" */
case XK_F13: /* "\033[25~" */
case XK_F14: /* "\033[26~" */
FKEY(23, XK_F11);
break;
case XK_F15: /* "\033[28~" */
case XK_F16: /* "\033[29~" */
FKEY(28, XK_F15);
break;
case XK_F17: /* "\033[31~" */
case XK_F18: /* "\033[32~" */
case XK_F19: /* "\033[33~" */
case XK_F20: /* "\033[34~" */
case XK_F21: /* "\033[35~" */
case XK_F22: /* "\033[36~" */
case XK_F23: /* "\033[37~" */
case XK_F24: /* "\033[38~" */
case XK_F25: /* "\033[39~" */
case XK_F26: /* "\033[40~" */
case XK_F27: /* "\033[41~" */
case XK_F28: /* "\033[42~" */
case XK_F29: /* "\033[43~" */
case XK_F30: /* "\033[44~" */
case XK_F31: /* "\033[45~" */
case XK_F32: /* "\033[46~" */
case XK_F33: /* "\033[47~" */
case XK_F34: /* "\033[48~" */
case XK_F35: /* "\033[49~" */
FKEY(31, XK_F17);
break;
#undef FKEY
}
/*
* Pass meta for all function keys, if 'meta' option set
*/
#ifdef META8_OPTION
if (meta && (meta_char == 0x80) && len > 0) {
kbuf[len - 1] |= 0x80;
}
#endif
} else if (ctrl && keysym == XK_minus) {
len = 1;
kbuf[0] = '\037'; /* Ctrl-Minus generates ^_ (31) */
} else {
#ifdef META8_OPTION
/* set 8-bit on */
if (meta && (meta_char == 0x80)) {
unsigned char *ch;
for (ch = kbuf; ch < kbuf + len; ch++)
*ch |= 0x80;
meta = 0;
}
#endif
#ifdef GREEK_SUPPORT
if (greek_mode)
len = greek_xlat(kbuf, len);
#endif
/* nil */ ;
}
if (len <= 0)
return; /* not mapped */
/*
* these modifications only affect the static keybuffer
* pass Shift/Control indicators for function keys ending with `~'
*
* eg,
* Prior = "ESC[5~"
* Shift+Prior = "ESC[5~"
* Ctrl+Prior = "ESC[5^"
* Ctrl+Shift+Prior = "ESC[5@"
* Meta adds an Escape prefix (with META8_OPTION, if meta == <escape>).
*/
if (kbuf[0] == '\033' && kbuf[1] == '[' && kbuf[len - 1] == '~')
kbuf[len - 1] = (shft ? (ctrl ? '@' : '$') : (ctrl ? '^' : '~'));
/* escape prefix */
if (meta
#ifdef META8_OPTION
&& (meta_char == 033)
#endif
) {
const unsigned char ch = '\033';
tt_write(&ch, 1);
}
#ifdef DEBUG_CMD
if (debug_key) { /* Display keyboard buffer contents */
char *p;
int i;
fprintf(stderr, "key 0x%04X [%d]: `", (unsigned int)keysym, len);
for (i = 0, p = kbuf; i < len; i++, p++)
fprintf(stderr, (*p >= ' ' && *p < '\177' ? "%c" : "\\%03o"), *p);
fprintf(stderr, "'\n");
}
#endif /* DEBUG_CMD */
tt_write(kbuf, len);
}
/*}}} */
#if (MENUBAR_MAX)
/*{{{ cmd_write(), cmd_getc() */
/* attempt to `write' COUNT to the input buffer */
/* PROTO */
unsigned int
cmd_write(const unsigned char *str, unsigned int count)
{
int n;
n = (count - (cmdbuf_ptr - cmdbuf_base));
/* need to insert more chars that space available in the front */
if (n > 0) {
/* try and get more space from the end */
unsigned char *src, *dst;
dst = (cmdbuf_base + sizeof(cmdbuf_base) - 1); /* max pointer */
if ((cmdbuf_ptr + n) > dst)
n = (dst - cmdbuf_ptr); /* max # chars to insert */
if ((cmdbuf_endp + n) > dst)
cmdbuf_endp = (dst - n); /* truncate end if needed */
/* equiv: memmove ((cmdbuf_ptr+n), cmdbuf_ptr, n); */
src = cmdbuf_endp;
dst = src + n;
/* FIXME: anything special to avoid possible pointer wrap? */
while (src >= cmdbuf_ptr)
*dst-- = *src--;
/* done */
cmdbuf_ptr += n;
cmdbuf_endp += n;
}
while (count-- && cmdbuf_ptr > cmdbuf_base) {
/* sneak one in */
cmdbuf_ptr--;
*cmdbuf_ptr = str[count];
}
return 0;
}
#endif /* MENUBAR_MAX */
/* cmd_getc() - Return next input character */
/*
* Return the next input character after first passing any keyboard input
* to the command.
*/
/* PROTO */
unsigned char
cmd_getc(void)
{
#define TIMEOUT_USEC 5000
static short refreshed = 0;
fd_set readfds;
int retval;
struct timeval value;
#if 0
#ifdef __CYGWIN32__
struct timeval value;
#else
struct itimerval value;
#endif
#endif
/* If there have been a lot of new lines, then update the screen
* What the heck I'll cheat and only refresh less than every page-full.
* the number of pages between refreshes is refresh_limit, which
* is incremented here because we must be doing flat-out scrolling.
*
* refreshing should be correct for small scrolls, because of the
* time-out */
if (refresh_count >= (refresh_limit * (TermWin.nrow - 1))) {
if (refresh_limit < REFRESH_PERIOD)
refresh_limit++;
refresh_count = 0;
refreshed = 1;
scr_refresh(refresh_type);
}
/* characters already read in */
if (cmdbuf_ptr < cmdbuf_endp)
goto Return_Char;
for (;;) {
struct timeval *timeout = &value;
if (v_bufstr < v_bufptr) /* output any pending chars */
tt_write(NULL, 0);
while (XPending(Xdisplay)) { /* process pending X events */
XEvent ev;
refreshed = 0;
XNextEvent(Xdisplay, &ev);
/*fprintf( stderr, "%s:%d Received event %d\n", __FUNCTION__, __LINE__, ev.type );*/
process_x_event(&ev);
/* in case button actions pushed chars to cmdbuf */
if (cmdbuf_ptr < cmdbuf_endp)
goto Return_Char;
}
#ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
if (scrollbar_isUp()) {
if (!scroll_arrow_delay-- && scr_page(UP, 1)) {
scroll_arrow_delay = SCROLLBAR_CONTINUOUS_DELAY;
refreshed = 0;
refresh_type |= SMOOTH_REFRESH;
}
} else if (scrollbar_isDn()) {
if (!scroll_arrow_delay-- && scr_page(DN, 1)) {
scroll_arrow_delay = SCROLLBAR_CONTINUOUS_DELAY;
refreshed = 0;
refresh_type |= SMOOTH_REFRESH;
}
}
#endif /* NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING */
/* Nothing to do! */
FD_ZERO(&readfds);
FD_SET(cmd_fd, &readfds);
FD_SET(Xfd, &readfds);
if( refreshed && last_update_background_request_sec == 0
#ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
&& !(scrollbar_isUpDn())
#endif
)
timeout = NULL ;
else if( !refreshed )
{
timeout->tv_usec = TIMEOUT_USEC;
timeout->tv_sec = 0;
}else if( last_update_background_request_sec )
{
time_t curr_t_sec, curr_t_usec, wait_usec = 0 ;
timer_get_time (&curr_t_sec, &curr_t_usec);
if( curr_t_sec == last_update_background_request_sec )
{
if( curr_t_usec < last_update_background_request_usec )
wait_usec = last_update_background_request_usec - curr_t_usec ;
}else if( curr_t_sec < last_update_background_request_sec )
{
wait_usec = (last_update_background_request_sec - curr_t_sec)*1000000 ;
wait_usec += last_update_background_request_usec ;
wait_usec -= curr_t_usec ;
}
if( wait_usec == 0 )
wait_usec = TIMEOUT_USEC ;
timeout->tv_usec = wait_usec;
timeout->tv_sec = 0 ; /*UPDATE_BACKGROUND_TIMEOUT_SEC;*/
}
/*fprintf( stderr, "%s:%d select(%d, cmd_fd = %d, Xfd = %d, %p)...", __FUNCTION__, __LINE__, num_fds, cmd_fd,Xfd ,timeout ); */
retval = select(max(cmd_fd,Xfd)+1, &readfds, NULL, NULL, timeout );
/* fprintf( stderr, "Done(retval = %d).\n", retval); */
/* See if we can read from the application */
if (FD_ISSET(cmd_fd, &readfds)) {
int n;
unsigned int count;
cmdbuf_ptr = cmdbuf_endp = cmdbuf_base;
for (count = BUFSIZ; count; count -= n, cmdbuf_endp += n)
if ((n = read(cmd_fd, cmdbuf_endp, count)) > 0)
continue;
else if (n == 0 || (n < 0 && errno == EAGAIN))
break;
else {
#if !defined(HAVE_ATEXIT) && !defined(__sun__)
clean_exit();
#endif
exit(EXIT_SUCCESS);
}
/* some characters read in */
if (count != BUFSIZ)
goto Return_Char;
}
/* select statement timed out - better update the screen */
if (retval == 0)
{
refresh_count = 0;
refresh_limit = 1;
if( last_update_background_request_sec > 0 )
{
time_t curr_t_sec, curr_t_usec;
timer_get_time (&curr_t_sec, &curr_t_usec);
if( ( last_update_background_request_sec == curr_t_sec &&
last_update_background_request_usec < curr_t_usec) ||
last_update_background_request_sec < curr_t_sec ||
last_update_background_request_sec-1 > curr_t_sec )
{
/* TODO update background pixmap */
RenderPixmap(1);
refresh_transparent_scrollbar();
scr_clear();
scr_touch();
refreshed = True ;
}
}
if (!refreshed)
{
refreshed = 1;
scr_refresh(refresh_type);
scrollbar_show(1);
}
}
}
/* NOTREACHED */
return 0;
Return_Char:
refreshed = 0;
return (*cmdbuf_ptr++);
}
/*}}} */
/*
* the 'essential' information for reporting Mouse Events
* pared down from XButtonEvent
*/
static struct {
int clicks;
Time time; /* milliseconds */
unsigned int state; /* key or button mask */
unsigned int button; /* detail */
} MEvent = {
0, CurrentTime, 0, AnyButton
};
/* PROTO */
void
mouse_report(XButtonEvent * ev)
{
int button_number, key_state = 0;
int x, y;
x = ev->x;
y = ev->y;
pixel_position(&x, &y);
button_number = ((MEvent.button == AnyButton) ? 3 :
(MEvent.button - Button1));
if (PrivateModes & PrivMode_MouseX10) {
/*
* do not report ButtonRelease
* no state info allowed
*/
key_state = 0;
if (button_number == 3)
return;
} else {
/* let's be explicit here ... from <X11/X.h>
* #define ShiftMask (1<<0)
* #define ControlMask (1<<2)
* #define Mod1Mask (1<<3)
*
* and XTerm mouse reporting needs these values:
* 4 = Shift
* 8 = Meta
* 16 = Control
* plus will add in our own Double-Click reporting
* 32 = Double Click
*/
key_state = (((MEvent.state & (ShiftMask | ControlMask))
+ ((MEvent.state & Mod1Mask) ? 2 : 0)
#ifdef MOUSE_REPORT_DOUBLECLICK
+ (MEvent.clicks > 1 ? 8 : 0)
#endif
) << 2);
/* Report mouse wheel events. */
if (ev->button == Button4 || ev->button == Button5) {
key_state |= 1 << 6;
button_number = ev->button - Button4;
}
}
#ifdef DEBUG_MOUSEREPORT
fprintf(stderr, "Mouse [");
if (key_state & 16)
fputc('C', stderr);
if (key_state & 4)
fputc('S', stderr);
if (key_state & 2)
fputc('A', stderr);
if (key_state & 32)
fputc('2', stderr);
fprintf(stderr, "]: <%d>, %d/%d\n",
button_number,
x + 1,
y + 1);
#else
tt_printf((unsigned char *) "\033[M%c%c%c",
(32 + button_number + key_state),
(32 + x + 1),
(32 + y + 1));
#endif
}
/*{{{ process an X event */
/* PROTO */
void
process_x_event(XEvent * ev)
{
static int bypass_keystate = 0;
int reportmode;
static int csrO = 0; /* Hops - csr offset in thumb/slider */
#if !defined(NO_DEBUG_OUTPUT)
fprintf(stderr, "****************************************************************\n");
fprintf(stderr, "%s:%s:%d(%d)><<EVENT type(%d(%s))->x.window(%lx)->send_event(%d)\n", __FILE__, __FUNCTION__, __LINE__, time(NULL), ev->type, event_type2name(ev->type), ev->xany.window, ev->xany.send_event);
#endif
/* to give proper Scroll behaviour */
switch (ev->type) {
case KeyPress:
lookup_key(ev);
break;
case DestroyNotify :
if( ev->xdestroywindow.window == TermWin.vt || ev->xdestroywindow.window == TermWin.parent )
{
#ifdef __CYGWIN__
/* cygwin does not kill shell properly */
/* fprintf( stderr, "cmd_pid = %d\n", cmd_pid ); */
kill( cmd_pid, SIGKILL );
#endif
exit(EXIT_SUCCESS);
}
break ;
case ClientMessage:
if (ev->xclient.format == 32 && ev->xclient.data.l[0] == wmDeleteWindow)
{
#ifdef __CYGWIN__
/* cygwin does not kill shell properly */
/* fprintf( stderr, "cmd_pid = %d\n", cmd_pid ); */
kill( cmd_pid, SIGKILL );
#endif
exit(EXIT_SUCCESS);
}
#ifdef OFFIX_DND
/* OffiX Dnd (drag 'n' drop) protocol */
if (ev->xclient.message_type == DndProtocol &&
((ev->xclient.data.l[0] == DndFile) ||
(ev->xclient.data.l[0] == DndDir) ||
(ev->xclient.data.l[0] == DndLink))) {
/* Get Dnd data */
Atom ActualType;
int ActualFormat;
unsigned char *data;
unsigned long Size, RemainingBytes;
XGetWindowProperty(Xdisplay, Xroot,
DndSelection,
0L, 1000000L,
False, AnyPropertyType,
&ActualType, &ActualFormat,
&Size, &RemainingBytes,
&data);
XChangeProperty(Xdisplay, Xroot,
XA_CUT_BUFFER0, XA_STRING,
8, PropModeReplace,
data, strlen(data));
selection_paste(Xroot, XA_CUT_BUFFER0, True);
XSetInputFocus(Xdisplay, Xroot, RevertToNone, CurrentTime);
}
#endif /* OFFIX_DND */
break;
case MappingNotify:
XRefreshKeyboardMapping(&(ev->xmapping));
break;
/* Here's my conclusiion:
* If the window is completely unobscured, use bitblt's
* to scroll. Even then, they're only used when doing partial
* screen scrolling. When partially obscured, we have to fill
* in the GraphicsExpose parts, which means that after each refresh,
* we need to wait for the graphics expose or Noexpose events,
* which ought to make things real slow!
*/
case VisibilityNotify:
switch (ev->xvisibility.state) {
case VisibilityUnobscured:
refresh_type = FAST_REFRESH;
break;
case VisibilityPartiallyObscured:
refresh_type = SLOW_REFRESH;
break;
default:
refresh_type = NO_REFRESH;
break;
}
break;
case FocusIn:
if (!TermWin.focus) {
TermWin.focus = 1;
#ifdef OFF_FOCUS_FADING
if( rs_fade != NULL )
{
PixColors = &(PixColorsFocused[0]);
on_colors_changed(Color_bg);
}
#endif
#ifndef NO_XLOCALE
if (Input_Context != NULL)
XSetICFocus(Input_Context);
#endif
}
break;
case FocusOut:
if (TermWin.focus) {
TermWin.focus = 0;
#ifdef OFF_FOCUS_FADING
if( rs_fade != NULL )
{
PixColors = &(PixColorsUnFocused[0]);
on_colors_changed(Color_bg);
}
#endif
#ifndef NO_XLOCALE
if (Input_Context != NULL)
XUnsetICFocus(Input_Context);
#endif
}
break;
case ConfigureNotify:
while( XCheckTypedWindowEvent( Xdisplay, ev->xconfigure.window, ConfigureNotify, ev ) );
resize_window(ev);
menubar_expose();
break;
case SelectionClear:
selection_clear();
break;
case SelectionNotify:
selection_paste(ev->xselection.requestor, ev->xselection.property, True);
break;
case SelectionRequest:
selection_send(&(ev->xselectionrequest));
break;
case PropertyNotify:
#ifdef DEBUG_BACKGROUND_PMAP
{
char *prop_name = XGetAtomName( Xdisplay, ev->xproperty.atom );
fprintf( stderr, "PropertyNotify : %s(%lX)\n", prop_name, ev->xproperty.atom );
if( prop_name )
XFree( prop_name );
}
#endif
if( ev->xproperty.window == Xroot )
{
#ifdef HAVE_AFTERSTEP
if (ev->xproperty.atom == _AS_STYLE )
{
const char *mystyle_name ;
if( rs_mystyle )
mystyle_name = rs_mystyle ;
else
mystyle_name = GetDefaultMyStyle() ;
mystyle_handle_property_event( ev );
set_mystyle( mystyle_find( mystyle_name ), True );
break;
}else if( ev->xproperty.atom == _XROOTPMAP_ID )
{
if( TermWin.background.trgType == BGT_MyStyle )
{
if( !TransparentMS(TermWin.background.mystyle) )
{
#ifdef DEBUG_BACKGROUND_PMAP
fprintf( stderr, "texture type = %d\n", TermWin.background.mystyle->texture_type );
#endif
break ;
}
destroy_asimage( &Scr.RootImage );
}
}
#endif
#ifdef TRANSPARENT
if( ev->xproperty.atom == _XROOTPMAP_ID )
{
if( IsTransparentPixmap() )
{
Pixmap p;
if( read_32bit_property (Xroot, _XROOTPMAP_ID, &p) )
{
if( p != TermWin.background.srcPixmap )
SetSrcPixmap( p );
}else
ValidateSrcPixmap(True);
#ifdef DEBUG_BACKGROUND_PMAP
fprintf( stderr, "root pmap changed to = %lX\n", TermWin.background.srcPixmap );
#endif
if( TransparentPixmapNeedsUpdate() )
request_background_update();
}else if( get_flags(Options, Opt_transparent) )
{
scr_clear();
scr_touch();
}
}
#endif
if( ev->xproperty.atom == _XA_NET_SUPPORTING_WM_CHECK )
{
check_extended_wm_hints_support();
#ifdef DEBUG_BACKGROUND_PMAP
fprintf( stderr, "WM change. Desktops are %ssupported\n", get_flags( ExtWM.flags, WM_SupportsDesktops )?"":"not " );
#endif
}else if( ev->xproperty.atom == _XA_NET_CURRENT_DESKTOP )
{
if( !read_32bit_property (Xroot, _XA_NET_CURRENT_DESKTOP, &ExtWM.current_desktop) )
clear_flags( ExtWM.flags, WM_SupportsDesktops );
else if( get_flags( ExtWM.flags, WM_ClaimSupportsDesktops ) )
set_flags( ExtWM.flags, WM_SupportsDesktops );
#ifdef DEBUG_BACKGROUND_PMAP
fprintf( stderr, "Curr Desk change to %ld. Desktops are %ssupported\n", ExtWM.current_desktop, get_flags( ExtWM.flags, WM_SupportsDesktops )?"":"not " );
#endif
/* Don't do it here - wait for background change :
* if( TransparentPixmapNeedsUpdate() )
request_background_update();
*/
}
}
if( ev->xproperty.window == TermWin.parent )
{
if( ev->xproperty.atom == _XA_NET_WM_DESKTOP )
{
#ifdef DEBUG_BACKGROUND_PMAP
fprintf( stderr, "Aterm Desk change from %ld. Desktops are %ssupported\n", ExtWM.aterm_desktop, get_flags( ExtWM.flags, WM_SupportsDesktops )?"":"not " );
#endif
if( !read_32bit_property (TermWin.parent, _XA_NET_WM_DESKTOP, &ExtWM.aterm_desktop) )
clear_flags( ExtWM.flags, WM_SupportsDesktops );
#ifdef DEBUG_BACKGROUND_PMAP
fprintf( stderr, "Aterm Desk change to %ld. Desktops are %ssupported\n", ExtWM.aterm_desktop, get_flags( ExtWM.flags, WM_SupportsDesktops )?"":"not " );
#endif
if( TransparentPixmapNeedsUpdate() )
request_background_update();
}else if( ev->xproperty.atom == _XA_NET_WM_STATE )
{
if( check_extended_wm_state() )
if( TransparentPixmapNeedsUpdate() )
request_background_update();
#ifdef DEBUG_BACKGROUND_PMAP
fprintf( stderr, "Aterm state change to: %sSticky, %sShaded, %sHidden\n",
get_flags( ExtWM.flags, WM_AtermStateSticky )?"":"not ",
get_flags( ExtWM.flags, WM_AtermStateShaded )?"":"not ",
get_flags( ExtWM.flags, WM_AtermStateHidden )?"":"not " );
#endif
}
}
break;
case UnmapNotify:
TermWin.bMapped = 0 ;
/* fprintf(stderr, "\n aterm is UnMapped(event)");*/
break;
case MapNotify:
/* {
XWindowAttributes attr ;
XGetWindowAttributes( Xdisplay, ParentWin[0], &attr );
TermWin.bMapped = (attr.map_state == IsViewable)?1:0 ;
fprintf(stderr, "\n aterm is %s", (TermWin.bMapped)?"Mapped":"UnMapped");
}*/
/* fprintf(stderr, "\n aterm is %s", (TermWin.bMapped)?"Mapped":"UnMapped");*/
TermWin.bMapped = 1 ;
#ifdef TRANSPARENT
request_background_update();
#endif
#if 0
refresh_transparent_scrollbar();
if( Options & Opt_transparent)
{
Pixmap tmp = GetRootPixmap(None);
if( tmp != TermWin.background.srcPixmap && TermWin.background.srcPixmap != None )
{
if( TermWin.background.trgType != BGT_None )
{
SetSrcPixmap(tmp);
RenderPixmap(0);
}
scr_clear();
scr_touch();
}
}
#endif
break ;
case ReparentNotify:
#ifdef TRANSPARENT
{
int n;
XWindowAttributes attr ;
int (*oldXErrorHandler) (Display *, XErrorEvent *) =
XSetErrorHandler (pixmap_error_handler);
for( n = 1 ; n < PARENTS_NUM ; n ++ ) ParentWin[n] = None;
/*
* Make the frame window set by the window manager have
* the root background. Some window managers put few nested frame
* windows for each client, so we have to take care about that.
*/
for( ParentWinNum = 1 ;ParentWinNum<PARENTS_NUM; ParentWinNum++)
{
Window root;
Window parent;
Window *list;
XQueryTree(Xdisplay, ParentWin[ParentWinNum-1], &root, &parent, &list, &n);
XFree(list);
if (parent == Xroot) break;
ParentWin[ParentWinNum] = parent;
/* we want to get all map/unmap events from this window as well*/
/* XSelectInput(Xdisplay, parent, StructureNotifyMask); */
if (Options & Opt_transparent)
XSetWindowBackgroundPixmap(Xdisplay, parent, ParentRelative);
}
if( XGetWindowAttributes( Xdisplay, ParentWin[0], &attr ))
TermWin.bMapped = (attr.map_state == IsViewable)?1:0 ;
XSetErrorHandler (oldXErrorHandler);
scr_clear();
}
#endif /* TRANSPARENT */
break;
case GraphicsExpose:
case Expose:
if (ev->xany.window == TermWin.vt) {
#if !defined(NO_DEBUG_OUTPUT)
fprintf(stderr, "exposed area = %dx%d%+d%+d\n", ev->xexpose.x, ev->xexpose.y,
ev->xexpose.width, ev->xexpose.height);
#endif
scr_expose(ev->xexpose.x, ev->xexpose.y,
ev->xexpose.width, ev->xexpose.height);
} else {
XEvent unused_xevent;
while (XCheckTypedWindowEvent(Xdisplay, ev->xany.window,
Expose,
&unused_xevent)) ;
while (XCheckTypedWindowEvent(Xdisplay, ev->xany.window,
GraphicsExpose,
&unused_xevent)) ;
if (isScrollbarWindow(ev->xany.window)) {
scrollbar_setNone();
scrollbar_show(0);
}
if (menubar_visible() && isMenuBarWindow(ev->xany.window))
menubar_expose();
Gr_expose(ev->xany.window);
}
break;
case ButtonPress:
bypass_keystate = (ev->xbutton.state & (Mod1Mask | ShiftMask));
reportmode = (bypass_keystate ?
0 : (PrivateModes & PrivMode_mouse_report));
if (ev->xany.window == TermWin.vt) {
if (ev->xbutton.subwindow != None)
Gr_ButtonPress(ev->xbutton.x, ev->xbutton.y);
else {
if (reportmode) {
/* mouse report from vt window */
/* save the xbutton state (for ButtonRelease) */
MEvent.state = ev->xbutton.state;
#ifdef MOUSE_REPORT_DOUBLECLICK
if (ev->xbutton.button == MEvent.button
&& (ev->xbutton.time - MEvent.time < MULTICLICK_TIME)) {
/* same button, within alloted time */
MEvent.clicks++;
if (MEvent.clicks > 1) {
/* only report double clicks */
MEvent.clicks = 2;
mouse_report(&(ev->xbutton));
/* don't report the release */
MEvent.clicks = 0;
MEvent.button = AnyButton;
}
} else {
/* different button, or time expired */
MEvent.clicks = 1;
MEvent.button = ev->xbutton.button;
mouse_report(&(ev->xbutton));
}
#else
MEvent.button = ev->xbutton.button;
mouse_report(&(ev->xbutton));
#endif /* MOUSE_REPORT_DOUBLECLICK */
} else {
if (ev->xbutton.button != MEvent.button)
MEvent.clicks = 0;
switch (ev->xbutton.button) {
case Button1:
if (MEvent.button == Button1
&& (ev->xbutton.time - MEvent.time < MULTICLICK_TIME))
MEvent.clicks++;
else
MEvent.clicks = 1;
selection_click(MEvent.clicks, ev->xbutton.x,
ev->xbutton.y);
MEvent.button = Button1;
break;
case Button3:
if (MEvent.button == Button3
&& (ev->xbutton.time - MEvent.time < MULTICLICK_TIME))
selection_rotate(ev->xbutton.x, ev->xbutton.y);
else
selection_extend(ev->xbutton.x, ev->xbutton.y, 1);
MEvent.button = Button3;
break;
}
}
MEvent.time = ev->xbutton.time;
return;
}
}
if (isScrollbarWindow(ev->xany.window)) {
scrollbar_setNone();
/*
* Rxvt-style scrollbar:
* move up if mouse is above slider
* move dn if mouse is below slider
*
* XTerm-style scrollbar:
* Move display proportional to pointer location
* pointer near top -> scroll one line
* pointer near bot -> scroll full page
*/
#ifndef NO_SCROLLBAR_REPORT
if (reportmode) {
/*
* Mouse report disabled scrollbar:
* arrow buttons - send up/down
* click on scrollbar - send pageup/down
*/
if (scrollbar_upButton(ev->xbutton.y))
tt_printf((unsigned char *) "\033[A");
else if (scrollbar_dnButton(ev->xbutton.y))
tt_printf((unsigned char *) "\033[B");
else
switch (ev->xbutton.button) {
case Button2:
tt_printf((unsigned char *) "\014");
break;
case Button1:
tt_printf((unsigned char *) "\033[6~");
break;
case Button3:
tt_printf((unsigned char *) "\033[5~");
break;
}
} else
#endif /* NO_SCROLLBAR_REPORT */
{
if (scrollbar_upButton(ev->xbutton.y)) {
#ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
scroll_arrow_delay = SCROLLBAR_INITIAL_DELAY;
#endif
if (scr_page(UP, 1))
scrollbar_setUp();
} else if (scrollbar_dnButton(ev->xbutton.y)) {
#ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
scroll_arrow_delay = SCROLLBAR_INITIAL_DELAY;
#endif
if (scr_page(DN, 1))
scrollbar_setDn();
} else
switch (ev->xbutton.button) {
case Button2:
#ifndef FUNKY_SCROLL_BEHAVIOUR
csrO = (scrollBar.bot - scrollBar.top) / 2;
/* align to thumb center */
#else
# ifndef XTERM_SCROLLBAR
if (scrollbar_above_slider(ev->xbutton.y) ||
scrollbar_below_slider(ev->xbutton.y))
# endif
#endif /* !FUNKY_SCROLL_BEHAVIOUR */
scr_move_to(scrollbar_position(ev->xbutton.y) - csrO,
scrollbar_size());
scrollbar_setMotion();
break;
case Button1:
#ifndef FUNKY_SCROLL_BEHAVIOUR
csrO = ev->xbutton.y - scrollBar.top;
/* ptr ofset in thumb */
#endif
/*drop */
case Button3:
#ifndef XTERM_SCROLLBAR
if (scrollbar_above_slider(ev->xbutton.y))
# ifdef RXVT_SCROLL_FULL
scr_page(UP, TermWin.nrow - 1);
# else
scr_page(UP, TermWin.nrow / 4);
# endif
else if (scrollbar_below_slider(ev->xbutton.y))
# ifdef RXVT_SCROLL_FULL
scr_page(DN, TermWin.nrow - 1);
# else
scr_page(DN, TermWin.nrow / 4);
# endif
else
scrollbar_setMotion();
#else /* XTERM_SCROLLBAR */
scr_page((ev->xbutton.button == Button1 ? DN : UP),
(TermWin.nrow *
scrollbar_position(ev->xbutton.y) /
scrollbar_size())
);
#endif /* XTERM_SCROLLBAR */
break;
}
}
return;
}
if (isMenuBarWindow(ev->xany.window)) {
menubar_control(&(ev->xbutton));
return;
}
break;
case ButtonRelease:
csrO = 0; /* reset csr Offset */
reportmode = (bypass_keystate ?
0 : (PrivateModes & PrivMode_mouse_report));
if (scrollbar_isUpDn()) {
scrollbar_setNone();
scrollbar_show(0);
#ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
refresh_type &= ~SMOOTH_REFRESH;
#endif
}
if (ev->xany.window == TermWin.vt) {
if (ev->xbutton.subwindow != None)
Gr_ButtonRelease(ev->xbutton.x, ev->xbutton.y);
else {
if (reportmode) {
/* Don't report release events for the mouse wheel */
if (ev->xbutton.button == Button4 || ev->xbutton.button == Button5)
return;
/* mouse report from vt window */
#ifdef MOUSE_REPORT_DOUBLECLICK
/* only report the release of 'slow' single clicks */
if (MEvent.button != AnyButton &&
(ev->xbutton.button != MEvent.button ||
(ev->xbutton.time - MEvent.time > MULTICLICK_TIME / 2))
) {
MEvent.clicks = 0;
MEvent.button = AnyButton;
mouse_report(&(ev->xbutton));
}
#else /* MOUSE_REPORT_DOUBLECLICK */
MEvent.button = AnyButton;
mouse_report(&(ev->xbutton));
#endif /* MOUSE_REPORT_DOUBLECLICK */
return;
}
/*
* dumb hack to compensate for the failure of click-and-drag
* when overriding mouse reporting
*/
if ((PrivateModes & PrivMode_mouse_report) &&
(bypass_keystate) &&
(ev->xbutton.button == Button1) &&
(MEvent.clicks <= 1))
selection_extend(ev->xbutton.x, ev->xbutton.y, 0);
switch (ev->xbutton.button) {
case Button1:
case Button3:
selection_make(ev->xbutton.time, ev->xbutton.state);
break;
case Button2:
selection_request(ev->xbutton.time,
ev->xbutton.x, ev->xbutton.y);
break;
#ifndef NO_MOUSE_WHEEL
case Button4:
scr_page(UP, (ev->xbutton.state & ShiftMask) ? 1 : 5);
break;
case Button5:
scr_page(DN, (ev->xbutton.state & ShiftMask) ? 1 : 5);
break;
#endif
}
}
} else if (isMenuBarWindow(ev->xany.window)) {
menubar_control(&(ev->xbutton));
}
break;
case MotionNotify:
if (isMenuBarWindow(ev->xany.window)) {
menubar_control(&(ev->xbutton));
break;
}
if ((PrivateModes & PrivMode_mouse_report) && !(bypass_keystate))
break;
if (ev->xany.window == TermWin.vt) {
if ((ev->xbutton.state & (Button1Mask | Button3Mask))) {
Window unused_root, unused_child;
int unused_root_x, unused_root_y;
unsigned int unused_mask;
while (XCheckTypedWindowEvent(Xdisplay, TermWin.vt,
MotionNotify, ev)) ;
XQueryPointer(Xdisplay, TermWin.vt,
&unused_root, &unused_child,
&unused_root_x, &unused_root_y,
&(ev->xbutton.x), &(ev->xbutton.y),
&unused_mask);
#ifdef MOUSE_THRESHOLD
/* deal with a `jumpy' mouse */
if ((ev->xmotion.time - MEvent.time) > MOUSE_THRESHOLD)
#endif
selection_extend((ev->xbutton.x), (ev->xbutton.y),
(ev->xbutton.state & Button3Mask) ? 2 : 0);
}
} else if ((ev->xany.window == scrollBar.win) && scrollbar_isMotion()) {
Window unused_root, unused_child;
int unused_root_x, unused_root_y;
unsigned int unused_mask;
while (XCheckTypedWindowEvent(Xdisplay, scrollBar.win,
MotionNotify, ev)) ;
XQueryPointer(Xdisplay, scrollBar.win,
&unused_root, &unused_child,
&unused_root_x, &unused_root_y,
&(ev->xbutton.x), &(ev->xbutton.y),
&unused_mask);
scr_move_to(scrollbar_position(ev->xbutton.y) - csrO,
scrollbar_size());
scr_refresh(refresh_type);
refresh_count = refresh_limit = 0;
scrollbar_show(1);
}
break;
}
}
/*}}} */
/*
* Send printf() formatted output to the command.
* Only use for small ammounts of data.
*/
/* PROTO */
void
tt_printf(const unsigned char *fmt,...)
{
static unsigned char buf[TT_PRINTF_LIMIT];
va_list arg_ptr;
va_start(arg_ptr, fmt);
vsprintf((char *) buf, (char *) fmt, arg_ptr);
va_end(arg_ptr);
tt_write(buf, strlen(buf));
}
/*}}} */
/*{{{ print pipe */
/*----------------------------------------------------------------------*/
#ifdef PRINTPIPE
/* PROTO */
FILE *
popen_printer(void)
{
FILE *stream = popen(rs_print_pipe, "w");
if (stream == NULL)
print_error("can't open printer pipe");
return stream;
}
/* PROTO */
int
pclose_printer(FILE * stream)
{
fflush(stream);
/* pclose() reported not to work on SunOS 4.1.3 */
#if defined (__sun__) /* TODO: RESOLVE THIS */
/* pclose works provided SIGCHLD handler uses waitpid */
return pclose(stream); /* return fclose (stream); */
#else
return pclose(stream);
#endif
}
/*
* simulate attached vt100 printer
*/
/* PROTO */
void
process_print_pipe(void)
{
int done;
FILE *fd;
if ((fd = popen_printer()) == NULL)
return;
/*
* Send all input to the printer until either ESC[4i or ESC[?4i
* is received.
*/
for (done = 0; !done;) {
unsigned char buf[8];
unsigned char ch;
unsigned int i, len;
if ((ch = cmd_getc()) != '\033') {
if (putc(ch, fd) == EOF)
break; /* done = 1 */
} else {
len = 0;
buf[len++] = ch;
if ((buf[len++] = cmd_getc()) == '[') {
if ((ch = cmd_getc()) == '?') {
buf[len++] = '?';
ch = cmd_getc();
}
if ((buf[len++] = ch) == '4') {
if ((buf[len++] = cmd_getc()) == 'i')
break; /* done = 1 */
}
}
for (i = 0; i < len; i++)
if (putc(buf[i], fd) == EOF) {
done = 1;
break;
}
}
}
pclose_printer(fd);
}
#endif /* PRINTPIPE */
/*}}} */
/*{{{ process escape sequences */
/* PROTO */
void
process_escape_seq(void)
{
unsigned char ch = cmd_getc();
switch (ch) {
/* case 1: do_tek_mode (); break; */
case '#':
if (cmd_getc() == '8')
scr_E();
break;
case '(':
scr_charset_set(0, cmd_getc());
break;
case ')':
scr_charset_set(1, cmd_getc());
break;
case '*':
scr_charset_set(2, cmd_getc());
break;
case '+':
scr_charset_set(3, cmd_getc());
break;
#ifdef MULTICHAR_SET
case '$':
scr_charset_set(-2, cmd_getc());
break;
#endif
case '7':
scr_cursor(SAVE);
break;
case '8':
scr_cursor(RESTORE);
break;
case '=':
case '>':
PrivMode((ch == '='), PrivMode_aplKP);
break;
case '@':
(void)cmd_getc();
break;
case 'D':
scr_index(UP);
break;
case 'E':
scr_add_lines((unsigned char *) "\n\r", 1, 2);
break;
case 'G':
process_graphics();
break;
case 'H':
scr_set_tab(1);
break;
case 'M':
scr_index(DN);
break;
/*case 'N': scr_single_shift (2); break; */
/*case 'O': scr_single_shift (3); break; */
case 'Z':
tt_printf((unsigned char *) ESCZ_ANSWER);
break; /* steal obsolete ESC [ c */
case '[':
process_csi_seq();
break;
case ']':
process_xterm_seq();
break;
case 'c':
scr_poweron();
break;
case 'n':
scr_charset_choose(2);
break;
case 'o':
scr_charset_choose(3);
break;
}
}
/*}}} */
/*{{{ process CSI (code sequence introducer) sequences `ESC[' */
/* PROTO */
void
process_csi_seq(void)
{
unsigned char ch, priv;
unsigned int nargs;
int arg[ESC_ARGS];
nargs = 0;
arg[0] = 0;
arg[1] = 0;
priv = 0;
ch = cmd_getc();
if (ch >= '<' && ch <= '?') {
priv = ch;
ch = cmd_getc();
}
/* read any numerical arguments */
do {
int n;
for (n = 0; isdigit(ch); ch = cmd_getc())
n = n * 10 + (ch - '0');
if (nargs < ESC_ARGS)
arg[nargs++] = n;
if (ch == '\b') {
scr_backspace();
} else if (ch == 033) {
process_escape_seq();
return;
} else if (ch < ' ') {
scr_add_lines(&ch, 0, 1);
return;
}
if (ch < '@')
ch = cmd_getc();
}
while (ch >= ' ' && ch < '@');
if (ch == 033) {
process_escape_seq();
return;
} else if (ch < ' ')
return;
switch (ch) {
#ifdef PRINTPIPE
case 'i': /* printing */
switch (arg[0]) {
case 0:
scr_printscreen(0);
break;
case 5:
process_print_pipe();
break;
}
break;
#endif
case 'A':
case 'e': /* up <n> */
scr_gotorc((arg[0] ? -arg[0] : -1), 0, RELATIVE);
break;
case 'B': /* down <n> */
scr_gotorc((arg[0] ? +arg[0] : +1), 0, RELATIVE);
break;
case 'C':
case 'a': /* right <n> */
scr_gotorc(0, (arg[0] ? +arg[0] : +1), RELATIVE);
break;
case 'D': /* left <n> */
scr_gotorc(0, (arg[0] ? -arg[0] : -1), RELATIVE);
break;
case 'E': /* down <n> & to first column */
scr_gotorc((arg[0] ? +arg[0] : +1), 0, R_RELATIVE);
break;
case 'F': /* up <n> & to first column */
scr_gotorc((arg[0] ? -arg[0] : -1), 0, R_RELATIVE);
break;
case 'G':
case '`': /* move to col <n> */
scr_gotorc(0, (arg[0] ? arg[0] - 1 : +1), R_RELATIVE);
break;
case 'd': /* move to row <n> */
scr_gotorc((arg[0] ? arg[0] - 1 : +1), 0, C_RELATIVE);
break;
case 'H':
case 'f': /* position cursor */
switch (nargs) {
case 0:
scr_gotorc(0, 0, 0);
break;
case 1:
scr_gotorc((arg[0] ? arg[0] - 1 : 0), 0, 0);
break;
default:
scr_gotorc(arg[0] - 1, arg[1] - 1, 0);
break;
}
break;
case 'I':
scr_tab(arg[0] ? +arg[0] : +1);
break;
case 'Z':
scr_tab(arg[0] ? -arg[0] : -1);
break;
case 'J':
scr_erase_screen(arg[0]);
break;
case 'K':
scr_erase_line(arg[0]);
break;
case '@':
scr_insdel_chars((arg[0] ? arg[0] : 1), INSERT);
break;
case 'L':
scr_insdel_lines((arg[0] ? arg[0] : 1), INSERT);
break;
case 'M':
scr_insdel_lines((arg[0] ? arg[0] : 1), DELETE);
break;
case 'X':
scr_insdel_chars((arg[0] ? arg[0] : 1), ERASE);
break;
case 'P':
scr_insdel_chars((arg[0] ? arg[0] : 1), DELETE);
break;
case 'c':
tt_printf((unsigned char *) VT100_ANS);
break;
case 'm':
process_sgr_mode(nargs, arg);
break;
case 'n': /* request for information */
switch (arg[0]) {
case 5:
tt_printf((unsigned char *) "\033[0n");
break; /* ready */
case 6:
scr_report_position();
break;
#if defined (ENABLE_DISPLAY_ANSWER)
case 7:
if( strlen(display_name) < TT_PRINTF_LIMIT-2 )
tt_printf((unsigned char *) "%s\n", display_name);
break;
#endif
case 8:
xterm_seq(XTerm_title, APL_NAME "-" VERSION);
break;
}
break;
case 'r': /* set top and bottom margins */
if (priv != '?') {
if (nargs < 2 || arg[0] >= arg[1])
scr_scroll_region(0, 10000);
else
scr_scroll_region(arg[0] - 1, arg[1] - 1);
break;
}
/* drop */
case 's':
case 't':
if(arg[0] == 21)
tt_printf((unsigned char *) "\033]l%s\033\\", rs_title);
break;
case 'h':
case 'l':
process_terminal_mode(ch, priv, nargs, arg);
break;
case 'g':
switch (arg[0]) {
case 0:
scr_set_tab(0);
break; /* delete tab */
case 3:
scr_set_tab(-1);
break; /* clear all tabs */
}
break;
case 'W':
switch (arg[0]) {
case 0:
scr_set_tab(1);
break; /* = ESC H */
case 2:
scr_set_tab(0);
break; /* = ESC [ 0 g */
case 5:
scr_set_tab(-1);
break; /* = ESC [ 3 g */
}
break;
}
}
/*}}} */
/*{{{ process xterm text parameters sequences `ESC ] Ps ; Pt BEL' */
/* PROTO */
void
process_xterm_seq(void)
{
unsigned char ch, string[STRING_MAX];
int arg;
ch = cmd_getc();
for (arg = 0; isdigit(ch); ch = cmd_getc())
arg = arg * 10 + (ch - '0');
if (ch == ';') {
int n = 0;
while ((ch = cmd_getc()) != 007) {
if (ch) {
if (ch == '\t')
ch = ' '; /* translate '\t' to space */
else if (ch < ' ')
return; /* control character - exit */
if (n < sizeof(string) - 1)
string[n++] = ch;
}
}
string[n] = '\0';
/*
* menubar_dispatch() violates the constness of the string,
* so do it here
*/
if (arg == XTerm_Menu)
menubar_dispatch((char *) string);
else
xterm_seq(arg, (char *) string);
}
}
/*}}} */
/*{{{ process DEC private mode sequences `ESC [ ? Ps mode' */
/*
* mode can only have the following values:
* 'l' = low
* 'h' = high
* 's' = save
* 'r' = restore
* 't' = toggle
* so no need for fancy checking
*/
/* PROTO */
void
process_terminal_mode(int mode, int priv, unsigned int nargs, int arg[])
{
unsigned int i;
int state;
if (nargs == 0)
return;
/* make lo/hi boolean */
switch (mode) {
case 'l':
mode = 0;
break;
case 'h':
mode = 1;
break;
}
switch (priv) {
case 0:
if (mode && mode != 1)
return; /* only do high/low */
for (i = 0; i < nargs; i++)
switch (arg[i]) {
case 4:
scr_insert_mode(mode);
break;
/* case 38: TEK mode */
}
break;
#define PrivCases(bit) \
if (mode == 't') \
state = !(PrivateModes & bit); \
else \
state = mode; \
switch (state) { \
case 's': \
SavedModes |= (PrivateModes & bit); \
continue; \
break; \
case 'r': \
state = (SavedModes & bit) ? 1 : 0; \
/* FALLTHROUGH */ \
default: \
PrivMode (state, bit); \
}
case '?':
for (i = 0; i < nargs; i++)
switch (arg[i]) {
case 1: /* application cursor keys */
PrivCases(PrivMode_aplCUR);
break;
/* case 2: - reset charsets to USASCII */
case 3: /* 80/132 */
PrivCases(PrivMode_132);
if (PrivateModes & PrivMode_132OK)
set_width(state ? 132 : 80);
break;
/* case 4: - smooth scrolling */
case 5: /* reverse video */
PrivCases(PrivMode_rVideo);
scr_rvideo_mode(state);
break;
case 6: /* relative/absolute origins */
PrivCases(PrivMode_relOrigin);
scr_relative_origin(state);
break;
case 7: /* autowrap */
PrivCases(PrivMode_Autowrap);
scr_autowrap(state);
break;
/* case 8: - auto repeat, can't do on a per window basis */
case 9: /* X10 mouse reporting */
PrivCases(PrivMode_MouseX10);
/* orthogonal */
if (PrivateModes & PrivMode_MouseX10)
PrivateModes &= ~(PrivMode_MouseX11);
break;
# ifdef menuBar_esc
case menuBar_esc:
PrivCases(PrivMode_menuBar);
map_menuBar(state);
break;
# endif
#ifdef scrollBar_esc
case scrollBar_esc:
PrivCases(PrivMode_scrollBar);
map_scrollBar(state);
break;
#endif
case 25: /* visible/invisible cursor */
PrivCases(PrivMode_VisibleCursor);
scr_cursor_visible(state);
break;
case 35:
PrivCases(PrivMode_ShiftKeys);
break;
case 40: /* 80 <--> 132 mode */
PrivCases(PrivMode_132OK);
break;
case 47: /* secondary screen */
PrivCases(PrivMode_Screen);
scr_change_screen(state);
break;
case 66: /* application key pad */
PrivCases(PrivMode_aplKP);
break;
case 67:
#ifndef NO_BACKSPACE_KEY
if (PrivateModes & PrivMode_HaveBackSpace) {
PrivCases(PrivMode_BackSpace);
}
#endif
break;
case 1000: /* X11 mouse reporting */
PrivCases(PrivMode_MouseX11);
/* orthogonal */
if (PrivateModes & PrivMode_MouseX11)
PrivateModes &= ~(PrivMode_MouseX10);
break;
#if 0
case 1001:
break; /* X11 mouse highlighting */
#endif
case 1010: /* scroll to bottom on TTY output inhibit */
PrivCases(PrivMode_TtyOutputInh);
if (PrivateModes & PrivMode_TtyOutputInh)
Options &= ~Opt_scrollTtyOutput;
else
Options |= Opt_scrollTtyOutput;
break;
case 1011: /* scroll to bottom on key press */
PrivCases(PrivMode_Keypress);
if (PrivateModes & PrivMode_Keypress)
Options |= Opt_scrollKeypress;
else
Options &= ~Opt_scrollKeypress;
break;
}
#undef PrivCases
break;
}
}
/*}}} */
/*{{{ process sgr sequences */
/* PROTO */
void
process_sgr_mode(unsigned int nargs, int arg[])
{
unsigned int i;
if (nargs == 0) {
scr_rendition(0, ~RS_None);
return;
}
for (i = 0; i < nargs; i++)
switch (arg[i]) {
case 0:
scr_rendition(0, ~RS_None);
break;
case 1:
scr_rendition(1, RS_Bold);
break;
case 4:
scr_rendition(1, RS_Uline);
break;
case 5:
scr_rendition(1, RS_Blink);
break;
case 7:
scr_rendition(1, RS_RVid);
break;
case 22:
scr_rendition(0, RS_Bold);
break;
case 24:
scr_rendition(0, RS_Uline);
break;
case 25:
scr_rendition(0, RS_Blink);
break;
case 27:
scr_rendition(0, RS_RVid);
break;
case 30:
case 31: /* set fg color */
case 32:
case 33:
case 34:
case 35:
case 36:
case 37:
scr_color(minCOLOR + (arg[i] - 30), RS_Bold);
break;
case 39: /* default fg */
scr_color(restoreFG, RS_Bold);
break;
case 40:
case 41: /* set bg color */
case 42:
case 43:
case 44:
case 45:
case 46:
case 47:
scr_color(minCOLOR + (arg[i] - 40), RS_Blink);
break;
case 49: /* default bg */
scr_color(restoreBG, RS_Blink);
break;
}
}
/*}}} */
/*{{{ process Rob Nation's own graphics mode sequences */
/* PROTO */
void
process_graphics(void)
{
unsigned char ch, cmd = cmd_getc();
#ifndef RXVT_GRAPHICS
if (cmd == 'Q') { /* query graphics */
tt_printf((unsigned char *) "\033G0\n"); /* no graphics */
return;
}
/* swallow other graphics sequences until terminating ':' */
do
ch = cmd_getc();
while (ch != ':');
#else
int nargs;
int args[NGRX_PTS];
unsigned char *text = NULL;
if (cmd == 'Q') { /* query graphics */
tt_printf((unsigned char *) "\033G1\n"); /* yes, graphics (color) */
return;
}
for (nargs = 0; nargs < (sizeof(args) / sizeof(args[0])) - 1; ) {
int neg;
ch = cmd_getc();
neg = (ch == '-');
if (neg || ch == '+')
ch = cmd_getc();
for (args[nargs] = 0; isdigit(ch); ch = cmd_getc())
args[nargs] = args[nargs] * 10 + (ch - '0');
if (neg)
args[nargs] = -args[nargs];
nargs++;
args[nargs] = 0;
if (ch != ';')
break;
}
if ((cmd == 'T') && (nargs >= 5)) {
int i, len = args[4];
text = MALLOC((len + 1) * sizeof(char));
if (text != NULL) {
for (i = 0; i < len; i++)
text[i] = cmd_getc();
text[len] = '\0';
}
}
Gr_do_graphics(cmd, nargs, args, text);
#endif
}
/*}}} */
/*{{{ Read and process output from the application */
/* PROTO */
void
main_loop(void)
{
int ch;
do {
while ((ch = cmd_getc()) == 0) ; /* wait for something */
/* fprintf( stderr, "%d: cmd_getc returned 0x%x(%c)\n", ++i, ch, isprint(ch)?ch:' ' ); */
if (ch >= ' ' || ch == '\t' || ch == '\n' || ch == '\r') {
/* Read a text string from the input buffer */
int nlines = 0;
unsigned char *str;
/*
* point to the start of the string,
* decrement first since it was post incremented in cmd_getc()
*/
str = --cmdbuf_ptr;
while (cmdbuf_ptr < cmdbuf_endp)
{
ch = *cmdbuf_ptr++;
/* fprintf( stderr, "%d: cmd_getc returned 0x%x(%c)\n", ++i, ch, isprint(ch)?ch:' ' ); */
if (ch >= ' ' || ch == '\t' )
{
/* nothing */
} else if (ch == '\r')
{ /* we better flush that stuff to create an
* impression that there is something going on */
if( cmdbuf_ptr >= cmdbuf_endp ||
(*cmdbuf_ptr != '\n' && *cmdbuf_ptr != '\r'))
break;
} else if (ch == '\n')
{
nlines++;
if (++refresh_count >= (refresh_limit * (TermWin.nrow - 1)))
break;
} else { /* unprintable */
cmdbuf_ptr--;
break;
}
}
scr_add_lines(str, nlines, (cmdbuf_ptr - str));
if( ch == '\r' )
{
scr_refresh(refresh_type);
}
} else {
switch (ch) {
case 005: /* terminal Status */
tt_printf((unsigned char *) VT100_ANS);
break;
case 007: /* bell */
scr_bell();
break;
case '\b': /* backspace */
scr_backspace();
break;
case 013: /* vertical tab, form feed */
case 014:
scr_index(UP);
break;
case 016: /* shift out - acs */
scr_charset_choose(1);
break;
case 017: /* shift in - acs */
scr_charset_choose(0);
break;
case 033: /* escape char */
process_escape_seq();
break;
}
}
} while (ch != EOF);
}
/* ---------------------------------------------------------------------- */
/* Addresses pasting large amounts of data and rxvt hang
* code pinched from xterm (v_write()) and applied originally to
* rxvt-2.18 - Hops
* Write data to the pty as typed by the user, pasted with the mouse,
* or generated by us in response to a query ESC sequence.
*/
/* PROTO */
void
tt_write(const unsigned char *d, int len)
{
int riten, p;
if (v_bufstr == NULL && len > 0) {
v_buffer = v_bufstr = v_bufptr = MALLOC(len);
v_bufend = v_buffer + len;
}
/*
* Append to the block we already have. Always doing this simplifies the
* code, and isn't too bad, either. If this is a short block, it isn't
* too expensive, and if this is a long block, we won't be able to write
* it all anyway.
*/
if (len > 0) {
if (v_bufend < v_bufptr + len) { /* we've run out of room */
if (v_bufstr != v_buffer) {
/* there is unused space, move everything down */
/* possibly overlapping bcopy here */
/* bcopy(v_bufstr, v_buffer, v_bufptr - v_bufstr); */
memcpy(v_buffer, v_bufstr, v_bufptr - v_bufstr);
v_bufptr -= v_bufstr - v_buffer;
v_bufstr = v_buffer;
}
if (v_bufend < v_bufptr + len) {
/* still won't fit: get more space */
/* Don't use XtRealloc because an error is not fatal. */
int size = v_bufptr - v_buffer;
/* save across realloc */
v_buffer = REALLOC(v_buffer, size + len);
if (v_buffer) {
v_bufstr = v_buffer;
v_bufptr = v_buffer + size;
v_bufend = v_bufptr + len;
} else {
/* no memory: ignore entire write request */
print_error("cannot allocate buffer space");
v_buffer = v_bufstr; /* restore clobbered pointer */
}
}
}
if (v_bufend >= v_bufptr + len) { /* new stuff will fit */
memcpy(v_bufptr, d, len); /* bcopy(d, v_bufptr, len); */
v_bufptr += len;
}
}
/*
* Write out as much of the buffer as we can.
* Be careful not to overflow the pty's input silo.
* We are conservative here and only write a small amount at a time.
*
* If we can't push all the data into the pty yet, we expect write
* to return a non-negative number less than the length requested
* (if some data written) or -1 and set errno to EAGAIN,
* EWOULDBLOCK, or EINTR (if no data written).
*
* (Not all systems do this, sigh, so the code is actually
* a little more forgiving.)
*/
#define MAX_PTY_WRITE 128 /* 1/2 POSIX minimum MAX_INPUT */
if ((p = v_bufptr - v_bufstr) > 0) {
riten = write(cmd_fd, v_bufstr, p < MAX_PTY_WRITE ? p : MAX_PTY_WRITE);
if (riten < 0)
riten = 0;
v_bufstr += riten;
if (v_bufstr >= v_bufptr) /* we wrote it all */
v_bufstr = v_bufptr = v_buffer;
}
/*
* If we have lots of unused memory allocated, return it
*/
if (v_bufend - v_bufptr > 1024) { /* arbitrary hysteresis */
/* save pointers across realloc */
int start = v_bufstr - v_buffer;
int size = v_bufptr - v_buffer;
int allocsize = size ? size : 1;
v_buffer = REALLOC(v_buffer, allocsize);
if (v_buffer) {
v_bufstr = v_buffer + start;
v_bufptr = v_buffer + size;
v_bufend = v_buffer + allocsize;
} else {
/* should we print a warning if couldn't return memory? */
v_buffer = v_bufstr - start; /* restore clobbered pointer */
}
}
}
/*}}} */
/*----------------------- end-of-file (C source) -----------------------*/
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