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newlib-cygwin/winsup/cygwin/fhandler_console.cc

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/* fhandler_console.cc
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include "winsup.h"
#include <sys/termios.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <wingdi.h>
#include <winuser.h>
#include <wincon.h>
#include <winnls.h>
#include <ctype.h>
#include <sys/cygwin.h>
#include "cygerrno.h"
#include "security.h"
#include "path.h"
#include "fhandler.h"
#include "dtable.h"
#include "cygheap.h"
#include "sigproc.h"
#include "pinfo.h"
#include "shared_info.h"
#include "cygtls.h"
#define CONVERT_LIMIT 16384
static bool
cp_convert (UINT destcp, char *dest, UINT srccp, const char *src, DWORD size)
{
if (!size)
/* no action */;
else if (destcp == srccp)
{
if (dest != src)
memcpy (dest, src, size);
}
else
{
WCHAR wbuffer[CONVERT_LIMIT]; /* same size as the maximum input, s.b. */
if (!MultiByteToWideChar (srccp, 0, src, size, wbuffer, sizeof (wbuffer)))
return false;
if (!WideCharToMultiByte (destcp, 0, wbuffer, size, dest, size,
NULL, NULL))
return false;
}
return true;
}
/*
* Scroll the screen context.
* x1, y1 - ul corner
* x2, y2 - dr corner
* xn, yn - new ul corner
* Negative values represents current screen dimensions
*/
#define srTop (dev_state->info.winTop + dev_state->scroll_region.Top)
#define srBottom ((dev_state->scroll_region.Bottom < 0) ? dev_state->info.winBottom : dev_state->info.winTop + dev_state->scroll_region.Bottom)
#define use_tty ISSTATE (myself, PID_USETTY)
const char * get_nonascii_key (INPUT_RECORD&, char *);
static console_state NO_COPY *shared_console_info;
dev_console NO_COPY *fhandler_console::dev_state;
/* Allocate and initialize the shared record for the current console.
Returns a pointer to shared_console_info. */
tty_min *
fhandler_console::get_tty_stuff (int flags = 0)
{
if (dev_state)
return &shared_console_info->tty_min_state;
shared_console_info =
(console_state *) open_shared (NULL, 0, cygheap->console_h,
sizeof (*shared_console_info),
SH_SHARED_CONSOLE);
dev_state = &shared_console_info->dev_state;
ProtectHandleINH (cygheap->console_h);
if (!shared_console_info->tty_min_state.ntty)
{
shared_console_info->tty_min_state.setntty (TTY_CONSOLE);
shared_console_info->tty_min_state.setsid (myself->sid);
myself->set_ctty (&shared_console_info->tty_min_state, flags, NULL);
dev_state->scroll_region.Bottom = -1;
dev_state->dwLastCursorPosition.X = -1;
dev_state->dwLastCursorPosition.Y = -1;
dev_state->default_color = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE;
dev_state->underline_color = FOREGROUND_GREEN | FOREGROUND_BLUE;
dev_state->dim_color = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE;
dev_state->meta_mask = LEFT_ALT_PRESSED;
/* Set the mask that determines if an input keystroke is modified by
META. We set this based on the keyboard layout language loaded
for the current thread. The left <ALT> key always generates
META, but the right <ALT> key only generates META if we are using
an English keyboard because many "international" keyboards
replace common shell symbols ('[', '{', etc.) with accented
language-specific characters (umlaut, accent grave, etc.). On
these keyboards right <ALT> (called AltGr) is used to produce the
shell symbols and should not be interpreted as META. */
if (PRIMARYLANGID (LOWORD (GetKeyboardLayout (0))) == LANG_ENGLISH)
dev_state->meta_mask |= RIGHT_ALT_PRESSED;
}
return &shared_console_info->tty_min_state;
}
void
set_console_ctty ()
{
(void) fhandler_console::get_tty_stuff ();
}
/* Return the tty structure associated with a given tty number. If the
tty number is < 0, just return a dummy record. */
tty_min *
tty_list::get_tty (int n)
{
static tty_min nada;
if (n == TTY_CONSOLE)
return fhandler_console::get_tty_stuff ();
else if (n >= 0)
return &cygwin_shared->tty.ttys[n];
else
return &nada;
}
/* Determine if a console is associated with this process prior to a spawn.
If it is, then we'll return 1. If the console has been initialized, then
set it into a more friendly state for non-cygwin apps. */
int __stdcall
set_console_state_for_spawn ()
{
HANDLE h = CreateFile ("CONIN$", GENERIC_READ, FILE_SHARE_WRITE,
&sec_none_nih, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
NULL);
if (h == INVALID_HANDLE_VALUE)
return 0;
if (shared_console_info != NULL)
{
/* ACK. Temporarily define for use in TTYSETF macro */
SetConsoleMode (h, ENABLE_LINE_INPUT | ENABLE_ECHO_INPUT | ENABLE_PROCESSED_INPUT);
shared_console_info->tty_min_state.rstcons (true);
}
CloseHandle (h);
return 1;
}
/* The results of GetConsoleCP() and GetConsoleOutputCP() cannot be
cached, because a program or the user can change these values at
any time. */
inline bool
dev_console::con_to_str (char *d, const char *s, DWORD sz)
{
return cp_convert (get_cp (), d, GetConsoleCP (), s, sz);
}
inline bool
dev_console::str_to_con (char *d, const char *s, DWORD sz)
{
if (alternate_charset_active)
{
/* no translation when alternate charset is active */
memcpy(d, s, sz);
return true;
}
return cp_convert (GetConsoleOutputCP (), d, get_cp (), s, sz);
}
bool
fhandler_console::set_raw_win32_keyboard_mode (bool new_mode)
{
bool old_mode = dev_state->raw_win32_keyboard_mode;
dev_state->raw_win32_keyboard_mode = new_mode;
syscall_printf ("raw keyboard mode %sabled", dev_state->raw_win32_keyboard_mode ? "en" : "dis");
return old_mode;
};
void
fhandler_console::set_cursor_maybe ()
{
CONSOLE_SCREEN_BUFFER_INFO now;
if (!GetConsoleScreenBufferInfo (get_output_handle (), &now))
return;
if (dev_state->dwLastCursorPosition.X != now.dwCursorPosition.X ||
dev_state->dwLastCursorPosition.Y != now.dwCursorPosition.Y)
{
SetConsoleCursorPosition (get_output_handle (), now.dwCursorPosition);
dev_state->dwLastCursorPosition = now.dwCursorPosition;
}
}
void
fhandler_console::send_winch_maybe ()
{
SHORT y = dev_state->info.dwWinSize.Y;
SHORT x = dev_state->info.dwWinSize.X;
fillin_info ();
if (y != dev_state->info.dwWinSize.Y || x != dev_state->info.dwWinSize.X)
{
extern fhandler_tty_master *tty_master;
dev_state->scroll_region.Top = 0;
dev_state->scroll_region.Bottom = -1;
if (tty_master)
tty_master->set_winsize (true);
else
tc->kill_pgrp (SIGWINCH);
}
}
void __stdcall
fhandler_console::read (void *pv, size_t& buflen)
{
HANDLE h = get_io_handle ();
#define buf ((char *) pv)
int ch;
set_input_state ();
int copied_chars = get_readahead_into_buffer (buf, buflen);
if (copied_chars)
{
buflen = copied_chars;
return;
}
HANDLE w4[2];
DWORD nwait;
char tmp[60];
w4[0] = h;
if (&_my_tls != _main_tls)
nwait = 1;
else
{
w4[1] = signal_arrived;
nwait = 2;
}
termios ti = tc->ti;
for (;;)
{
int bgres;
if ((bgres = bg_check (SIGTTIN)) <= bg_eof)
{
buflen = bgres;
return;
}
set_cursor_maybe (); /* to make cursor appear on the screen immediately */
switch (WaitForMultipleObjects (nwait, w4, FALSE, INFINITE))
{
case WAIT_OBJECT_0:
break;
case WAIT_OBJECT_0 + 1:
goto sig_exit;
default:
goto err;
}
DWORD nread;
INPUT_RECORD input_rec;
const char *toadd = NULL;
if (!ReadConsoleInput (h, &input_rec, 1, &nread))
{
syscall_printf ("ReadConsoleInput failed, %E");
goto err; /* seems to be failure */
}
/* check the event that occurred */
switch (input_rec.EventType)
{
case KEY_EVENT:
#define virtual_key_code (input_rec.Event.KeyEvent.wVirtualKeyCode)
#define control_key_state (input_rec.Event.KeyEvent.dwControlKeyState)
dev_state->nModifiers = 0;
#ifdef DEBUGGING
/* allow manual switching to/from raw mode via ctrl-alt-scrolllock */
if (input_rec.Event.KeyEvent.bKeyDown &&
virtual_key_code == VK_SCROLL &&
control_key_state & (LEFT_ALT_PRESSED | LEFT_CTRL_PRESSED) == LEFT_ALT_PRESSED | LEFT_CTRL_PRESSED
)
{
set_raw_win32_keyboard_mode (!dev_state->raw_win32_keyboard_mode);
continue;
}
#endif
if (dev_state->raw_win32_keyboard_mode)
{
__small_sprintf (tmp, "\033{%u;%u;%u;%u;%u;%luK",
input_rec.Event.KeyEvent.bKeyDown,
input_rec.Event.KeyEvent.wRepeatCount,
input_rec.Event.KeyEvent.wVirtualKeyCode,
input_rec.Event.KeyEvent.wVirtualScanCode,
input_rec.Event.KeyEvent.uChar.UnicodeChar,
input_rec.Event.KeyEvent.dwControlKeyState);
toadd = tmp;
nread = strlen (toadd);
break;
}
#define ich (input_rec.Event.KeyEvent.uChar.AsciiChar)
#define wch (input_rec.Event.KeyEvent.uChar.UnicodeChar)
#define ALT_PRESSED (LEFT_ALT_PRESSED | RIGHT_ALT_PRESSED)
#define CTRL_PRESSED (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED)
/* Ignore key up events, except for left alt events with non-zero character
*/
if (!input_rec.Event.KeyEvent.bKeyDown &&
/*
Event for left alt, with a non-zero character, comes from
"alt + numerics" key sequence.
e.g. <left-alt> 0233 => &eacute;
*/
!(wch != 0
// ?? experimentally determined on an XP system
&& virtual_key_code == VK_MENU
// left alt -- see http://www.microsoft.com/hwdev/tech/input/Scancode.asp
&& input_rec.Event.KeyEvent.wVirtualScanCode == 0x38))
continue;
if (control_key_state & SHIFT_PRESSED)
dev_state->nModifiers |= 1;
if (control_key_state & RIGHT_ALT_PRESSED)
dev_state->nModifiers |= 2;
if (control_key_state & CTRL_PRESSED)
dev_state->nModifiers |= 4;
if (control_key_state & LEFT_ALT_PRESSED)
dev_state->nModifiers |= 8;
if (wch == 0 ||
/* arrow/function keys */
(input_rec.Event.KeyEvent.dwControlKeyState & ENHANCED_KEY))
{
toadd = get_nonascii_key (input_rec, tmp);
if (!toadd)
{
dev_state->nModifiers = 0;
continue;
}
nread = strlen (toadd);
}
else
{
tmp[1] = ich;
/* Need this check since US code page seems to have a bug when
converting a CTRL-U. */
if ((unsigned char) ich > 0x7f)
dev_state->con_to_str (tmp + 1, tmp + 1, 1);
/* Determine if the keystroke is modified by META. The tricky
part is to distinguish whether the right Alt key should be
recognized as Alt, or as AltGr. */
bool meta;
if (wincap.altgr_is_ctrl_alt ())
/* WinNT: AltGr is reported as Ctrl+Alt, and Ctrl+Alt is
treated just like AltGr. However, if Ctrl+Alt+key generates
an ASCII control character, interpret is as META. */
meta = (control_key_state & ALT_PRESSED) != 0
&& ((control_key_state & CTRL_PRESSED) == 0
|| (ich >= 0 && ich <= 0x1f || ich == 0x7f));
else
/* Win9x: there's no way to distinguish Alt from AltGr, so rely
on dev_state->meta_mask heuristic (see fhandler_console constructor). */
meta = (control_key_state & dev_state->meta_mask) != 0;
if (!meta)
toadd = tmp + 1;
else
{
tmp[0] = '\033';
tmp[1] = cyg_tolower (tmp[1]);
toadd = tmp;
nread++;
dev_state->nModifiers &= ~4;
}
}
#undef ich
#undef wch
#undef ALT_PRESSED
#undef CTRL_PRESSED
break;
case MOUSE_EVENT:
send_winch_maybe ();
if (dev_state->use_mouse)
{
MOUSE_EVENT_RECORD& mouse_event = input_rec.Event.MouseEvent;
/* Treat the double-click event like a regular button press */
if (mouse_event.dwEventFlags == DOUBLE_CLICK)
{
syscall_printf ("mouse: double-click -> click");
mouse_event.dwEventFlags = 0;
}
/* Did something other than a click occur? */
if (mouse_event.dwEventFlags)
continue;
/* Retrieve reported mouse position */
int x = mouse_event.dwMousePosition.X;
int y = mouse_event.dwMousePosition.Y;
/* Adjust mouse position by scroll buffer offset */
CONSOLE_SCREEN_BUFFER_INFO now;
if (GetConsoleScreenBufferInfo (get_output_handle (), &now))
{
y -= now.srWindow.Top;
x -= now.srWindow.Left;
}
else
{
syscall_printf ("mouse: cannot adjust position by scroll buffer offset");
continue;
}
/* If the mouse event occurred out of the area we can handle,
ignore it. */
if ((x + ' ' + 1 > 0xFF) || (y + ' ' + 1 > 0xFF))
{
syscall_printf ("mouse: position out of range");
continue;
}
/* Ignore unimportant mouse buttons */
mouse_event.dwButtonState &= 0x7;
/* This code assumes Windows never reports multiple button
events at the same time. */
int b = 0;
char sz[32];
if (mouse_event.dwButtonState == dev_state->dwLastButtonState)
{
syscall_printf ("mouse: button state unchanged");
continue;
}
else if (mouse_event.dwButtonState < dev_state->dwLastButtonState)
{
b = 3;
strcpy (sz, "btn up");
}
else if ((mouse_event.dwButtonState & 1) != (dev_state->dwLastButtonState & 1))
{
b = 0;
strcpy (sz, "btn1 down");
}
else if ((mouse_event.dwButtonState & 2) != (dev_state->dwLastButtonState & 2))
{
b = 2;
strcpy (sz, "btn2 down");
}
else if ((mouse_event.dwButtonState & 4) != (dev_state->dwLastButtonState & 4))
{
b = 1;
strcpy (sz, "btn3 down");
}
/* Remember the current button state */
dev_state->dwLastButtonState = mouse_event.dwButtonState;
/* If a button was pressed, remember the modifiers */
if (b != 3)
{
dev_state->nModifiers = 0;
if (mouse_event.dwControlKeyState & SHIFT_PRESSED)
dev_state->nModifiers |= 0x4;
if (mouse_event.dwControlKeyState & (RIGHT_ALT_PRESSED|LEFT_ALT_PRESSED))
dev_state->nModifiers |= 0x8;
if (mouse_event.dwControlKeyState & (RIGHT_CTRL_PRESSED|LEFT_CTRL_PRESSED))
dev_state->nModifiers |= 0x10;
}
b |= dev_state->nModifiers;
/* We can now create the code. */
sprintf (tmp, "\033[M%c%c%c", b + ' ', x + ' ' + 1, y + ' ' + 1);
syscall_printf ("mouse: %s at (%d,%d)", sz, x, y);
toadd = tmp;
nread = 6;
}
break;
case FOCUS_EVENT:
case WINDOW_BUFFER_SIZE_EVENT:
send_winch_maybe ();
/* fall through */
default:
continue;
}
if (toadd)
{
line_edit_status res = line_edit (toadd, nread, ti);
if (res == line_edit_signalled)
goto sig_exit;
else if (res == line_edit_input_done)
break;
}
#undef ich
}
while (buflen)
if ((ch = get_readahead ()) < 0)
break;
else
{
buf[copied_chars++] = (unsigned char)(ch & 0xff);
buflen--;
}
#undef buf
buflen = copied_chars;
return;
err:
__seterrno ();
buflen = (size_t) -1;
return;
sig_exit:
set_sig_errno (EINTR);
buflen = (size_t) -1;
return;
}
void
fhandler_console::set_input_state ()
{
if (tc->rstcons ())
input_tcsetattr (0, &tc->ti);
}
bool
fhandler_console::fillin_info (void)
{
bool ret;
CONSOLE_SCREEN_BUFFER_INFO linfo;
if ((ret = GetConsoleScreenBufferInfo (get_output_handle (), &linfo)))
{
dev_state->info.winTop = linfo.srWindow.Top;
dev_state->info.winBottom = linfo.srWindow.Bottom;
dev_state->info.dwWinSize.Y = 1 + linfo.srWindow.Bottom - linfo.srWindow.Top;
dev_state->info.dwWinSize.X = 1 + linfo.srWindow.Right - linfo.srWindow.Left;
dev_state->info.dwBufferSize = linfo.dwSize;
dev_state->info.dwCursorPosition = linfo.dwCursorPosition;
dev_state->info.wAttributes = linfo.wAttributes;
}
else
{
memset (&dev_state->info, 0, sizeof dev_state->info);
dev_state->info.dwWinSize.Y = 25;
dev_state->info.dwWinSize.X = 80;
dev_state->info.winBottom = 24;
}
return ret;
}
void
fhandler_console::scroll_screen (int x1, int y1, int x2, int y2, int xn, int yn)
{
SMALL_RECT sr1, sr2;
CHAR_INFO fill;
COORD dest;
(void) fillin_info ();
sr1.Left = x1 >= 0 ? x1 : dev_state->info.dwWinSize.X - 1;
if (y1 == 0)
sr1.Top = dev_state->info.winTop;
else
sr1.Top = y1 > 0 ? y1 : dev_state->info.winBottom;
sr1.Right = x2 >= 0 ? x2 : dev_state->info.dwWinSize.X - 1;
if (y2 == 0)
sr1.Bottom = dev_state->info.winTop;
else
sr1.Bottom = y2 > 0 ? y2 : dev_state->info.winBottom;
sr2.Top = srTop;
sr2.Left = 0;
sr2.Bottom = srBottom;
sr2.Right = dev_state->info.dwWinSize.X - 1;
if (sr1.Bottom > sr2.Bottom && sr1.Top <= sr2.Bottom)
sr1.Bottom = sr2.Bottom;
dest.X = xn >= 0 ? xn : dev_state->info.dwWinSize.X - 1;
if (yn == 0)
dest.Y = dev_state->info.winTop;
else
dest.Y = yn > 0 ? yn : dev_state->info.winBottom;
fill.Char.AsciiChar = ' ';
fill.Attributes = dev_state->current_win32_attr;
ScrollConsoleScreenBuffer (get_output_handle (), &sr1, &sr2, dest, &fill);
/* ScrollConsoleScreenBuffer on Windows 95 is buggy - when scroll distance
* is more than half of screen, filling doesn't work as expected */
if (sr1.Top != sr1.Bottom)
if (dest.Y <= sr1.Top) /* forward scroll */
clear_screen (0, 1 + dest.Y + sr1.Bottom - sr1.Top, sr2.Right, sr2.Bottom);
else /* reverse scroll */
clear_screen (0, sr1.Top, sr2.Right, dest.Y - 1);
}
int
fhandler_console::open (int flags, mode_t)
{
HANDLE h;
tcinit (get_tty_stuff (flags));
set_io_handle (NULL);
set_output_handle (NULL);
set_flags ((flags & ~O_TEXT) | O_BINARY);
/* Open the input handle as handle_ */
h = CreateFile ("CONIN$", GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE, &sec_none,
OPEN_EXISTING, 0, 0);
if (h == INVALID_HANDLE_VALUE)
{
__seterrno ();
return 0;
}
set_io_handle (h);
uninterruptible_io (true); // Handled explicitly in read code
h = CreateFile ("CONOUT$", GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE, &sec_none,
OPEN_EXISTING, 0, 0);
if (h == INVALID_HANDLE_VALUE)
{
__seterrno ();
return 0;
}
set_output_handle (h);
if (fillin_info ())
dev_state->default_color = dev_state->info.wAttributes;
set_default_attr ();
DWORD cflags;
if (GetConsoleMode (get_io_handle (), &cflags))
{
cflags |= ENABLE_PROCESSED_INPUT;
SetConsoleMode (get_io_handle (), ENABLE_WINDOW_INPUT | ENABLE_MOUSE_INPUT | cflags);
}
tc->rstcons (false);
set_open_status ();
cygheap->open_fhs++;
debug_printf ("incremented open_fhs, now %d", cygheap->open_fhs);
debug_printf ("opened conin$ %p, conout$ %p", get_io_handle (),
get_output_handle ());
return 1;
}
int
fhandler_console::close (void)
{
CloseHandle (get_io_handle ());
CloseHandle (get_output_handle ());
set_io_handle (NULL);
set_output_handle (NULL);
if (--(cygheap->open_fhs) <= 0 && myself->ctty != TTY_CONSOLE)
{
syscall_printf ("open_fhs %d", cygheap->open_fhs);
FreeConsole ();
}
debug_printf ("decremented open_fhs, now %d", cygheap->open_fhs);
return 0;
}
/*
* Special console dup to duplicate input and output
* handles.
*/
int
fhandler_console::dup (fhandler_base *child)
{
fhandler_console *fhc = (fhandler_console *) child;
if (!fhc->open (get_flags () & ~O_NOCTTY, 0))
system_printf ("error opening console, %E");
return 0;
}
int
fhandler_console::ioctl (unsigned int cmd, void *buf)
{
switch (cmd)
{
case TIOCGWINSZ:
int st;
st = fillin_info ();
if (st)
{
/* *not* the buffer size, the actual screen size... */
/* based on Left Top Right Bottom of srWindow */
((struct winsize *) buf)->ws_row = dev_state->info.dwWinSize.Y;
((struct winsize *) buf)->ws_col = dev_state->info.dwWinSize.X;
syscall_printf ("WINSZ: (row=%d,col=%d)",
((struct winsize *) buf)->ws_row,
((struct winsize *) buf)->ws_col);
return 0;
}
else
{
syscall_printf ("WINSZ failed");
__seterrno ();
return -1;
}
return 0;
case TIOCSWINSZ:
(void) bg_check (SIGTTOU);
return 0;
case TIOCLINUX:
if (* (int *) buf == 6)
{
* (int *) buf = dev_state->nModifiers;
return 0;
}
else
{
set_errno (EINVAL);
return -1;
}
}
return fhandler_base::ioctl (cmd, buf);
}
int
fhandler_console::tcflush (int queue)
{
int res = 0;
if (queue == TCIFLUSH
|| queue == TCIOFLUSH)
{
if (!FlushConsoleInputBuffer (get_io_handle ()))
{
__seterrno ();
res = -1;
}
}
return res;
}
int
fhandler_console::output_tcsetattr (int, struct termios const *t)
{
/* All the output bits we can ignore */
DWORD flags = ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT;
int res = SetConsoleMode (get_output_handle (), flags) ? 0 : -1;
syscall_printf ("%d = tcsetattr (,%x) (ENABLE FLAGS %x) (lflag %x oflag %x)",
res, t, flags, t->c_lflag, t->c_oflag);
return res;
}
int
fhandler_console::input_tcsetattr (int, struct termios const *t)
{
/* Ignore the optional_actions stuff, since all output is emitted
instantly */
DWORD oflags;
if (!GetConsoleMode (get_io_handle (), &oflags))
oflags = 0;
DWORD flags = 0;
#if 0
/* Enable/disable LF -> CRLF conversions */
rbinary ((t->c_iflag & INLCR) ? false : true);
#endif
/* There's some disparity between what we need and what's
available. We've got ECHO and ICANON, they've
got ENABLE_ECHO_INPUT and ENABLE_LINE_INPUT. */
tc->ti = *t;
if (t->c_lflag & ECHO)
{
flags |= ENABLE_ECHO_INPUT;
}
if (t->c_lflag & ICANON)
{
flags |= ENABLE_LINE_INPUT;
}
if (flags & ENABLE_ECHO_INPUT
&& !(flags & ENABLE_LINE_INPUT))
{
/* This is illegal, so turn off the echo here, and fake it
when we read the characters */
flags &= ~ENABLE_ECHO_INPUT;
}
if (t->c_lflag & ISIG)
{
flags |= ENABLE_PROCESSED_INPUT;
}
if (use_tty)
{
flags = 0; // ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT;
tc->ti.c_iflag = 0;
tc->ti.c_lflag = 0;
}
flags |= ENABLE_WINDOW_INPUT | ENABLE_MOUSE_INPUT;
int res;
if (flags == oflags)
res = 0;
else
{
res = SetConsoleMode (get_io_handle (), flags) ? 0 : -1;
if (res < 0)
__seterrno ();
syscall_printf ("%d = tcsetattr (,%x) enable flags %p, c_lflag %p iflag %p",
res, t, flags, t->c_lflag, t->c_iflag);
}
tc->rstcons (false);
return res;
}
int
fhandler_console::tcsetattr (int a, struct termios const *t)
{
int res = output_tcsetattr (a, t);
if (res != 0)
return res;
return input_tcsetattr (a, t);
}
int
fhandler_console::tcgetattr (struct termios *t)
{
int res;
*t = tc->ti;
t->c_cflag |= CS8;
DWORD flags;
if (!GetConsoleMode (get_io_handle (), &flags))
{
__seterrno ();
res = -1;
}
else
{
if (flags & ENABLE_ECHO_INPUT)
t->c_lflag |= ECHO;
if (flags & ENABLE_LINE_INPUT)
t->c_lflag |= ICANON;
if (flags & ENABLE_PROCESSED_INPUT)
t->c_lflag |= ISIG;
/* What about ENABLE_WINDOW_INPUT
and ENABLE_MOUSE_INPUT ? */
/* All the output bits we can ignore */
res = 0;
}
syscall_printf ("%d = tcgetattr (%p) enable flags %p, t->lflag %p, t->iflag %p",
res, t, flags, t->c_lflag, t->c_iflag);
return res;
}
fhandler_console::fhandler_console () :
fhandler_termios ()
{
}
#define FOREGROUND_ATTR_MASK (FOREGROUND_RED | FOREGROUND_GREEN | \
FOREGROUND_BLUE | FOREGROUND_INTENSITY)
#define BACKGROUND_ATTR_MASK (BACKGROUND_RED | BACKGROUND_GREEN | \
BACKGROUND_BLUE | BACKGROUND_INTENSITY)
void
fhandler_console::set_default_attr ()
{
dev_state->blink = dev_state->underline = dev_state->reverse = false;
dev_state->intensity = INTENSITY_NORMAL;
dev_state->fg = dev_state->default_color & FOREGROUND_ATTR_MASK;
dev_state->bg = dev_state->default_color & BACKGROUND_ATTR_MASK;
dev_state->current_win32_attr = get_win32_attr ();
SetConsoleTextAttribute (get_output_handle (), dev_state->current_win32_attr);
}
WORD
fhandler_console::get_win32_attr ()
{
WORD win_fg = dev_state->fg;
WORD win_bg = dev_state->bg;
if (dev_state->reverse)
{
WORD save_fg = win_fg;
win_fg = (win_bg & BACKGROUND_RED ? FOREGROUND_RED : 0) |
(win_bg & BACKGROUND_GREEN ? FOREGROUND_GREEN : 0) |
(win_bg & BACKGROUND_BLUE ? FOREGROUND_BLUE : 0) |
(win_bg & BACKGROUND_INTENSITY ? FOREGROUND_INTENSITY : 0);
win_bg = (save_fg & FOREGROUND_RED ? BACKGROUND_RED : 0) |
(save_fg & FOREGROUND_GREEN ? BACKGROUND_GREEN : 0) |
(save_fg & FOREGROUND_BLUE ? BACKGROUND_BLUE : 0) |
(save_fg & FOREGROUND_INTENSITY ? BACKGROUND_INTENSITY : 0);
}
if (dev_state->underline)
win_fg = dev_state->underline_color;
/* emulate blink with bright background */
if (dev_state->blink)
win_bg |= BACKGROUND_INTENSITY;
if (dev_state->intensity == INTENSITY_INVISIBLE)
win_fg = win_bg;
else if (dev_state->intensity == INTENSITY_BOLD)
win_fg |= FOREGROUND_INTENSITY;
return (win_fg | win_bg);
}
/*
* Clear the screen context from x1/y1 to x2/y2 cell.
* Negative values represents current screen dimensions
*/
void
fhandler_console::clear_screen (int x1, int y1, int x2, int y2)
{
COORD tlc;
DWORD done;
int num;
(void)fillin_info ();
if (x1 < 0)
x1 = dev_state->info.dwWinSize.X - 1;
if (y1 < 0)
y1 = dev_state->info.winBottom;
if (x2 < 0)
x2 = dev_state->info.dwWinSize.X - 1;
if (y2 < 0)
y2 = dev_state->info.winBottom;
num = abs (y1 - y2) * dev_state->info.dwBufferSize.X + abs (x1 - x2) + 1;
if ((y2 * dev_state->info.dwBufferSize.X + x2) > (y1 * dev_state->info.dwBufferSize.X + x1))
{
tlc.X = x1;
tlc.Y = y1;
}
else
{
tlc.X = x2;
tlc.Y = y2;
}
FillConsoleOutputCharacterA (get_output_handle (), ' ',
num,
tlc,
&done);
FillConsoleOutputAttribute (get_output_handle (),
dev_state->current_win32_attr,
num,
tlc,
&done);
}
void
fhandler_console::cursor_set (bool rel_to_top, int x, int y)
{
COORD pos;
(void) fillin_info ();
if (y > dev_state->info.winBottom)
y = dev_state->info.winBottom;
else if (y < 0)
y = 0;
else if (rel_to_top)
y += dev_state->info.winTop;
if (x > dev_state->info.dwWinSize.X)
x = dev_state->info.dwWinSize.X - 1;
else if (x < 0)
x = 0;
pos.X = x;
pos.Y = y;
SetConsoleCursorPosition (get_output_handle (), pos);
}
void
fhandler_console::cursor_rel (int x, int y)
{
fillin_info ();
x += dev_state->info.dwCursorPosition.X;
y += dev_state->info.dwCursorPosition.Y;
cursor_set (false, x, y);
}
void
fhandler_console::cursor_get (int *x, int *y)
{
fillin_info ();
*y = dev_state->info.dwCursorPosition.Y;
*x = dev_state->info.dwCursorPosition.X;
}
#define BAK 1
#define ESC 2
#define NOR 0
#define IGN 4
#if 0
#define ERR 5
#else
#define ERR NOR
#endif
#define DWN 6
#define BEL 7
#define TAB 8 /* We should't let the console deal with these */
#define CR 13
#define LF 10
static const char base_chars[256] =
{
/*00 01 02 03 04 05 06 07 */ IGN, ERR, ERR, NOR, NOR, NOR, NOR, BEL,
/*08 09 0A 0B 0C 0D 0E 0F */ BAK, TAB, DWN, ERR, ERR, CR, ERR, IGN,
/*10 11 12 13 14 15 16 17 */ NOR, NOR, ERR, ERR, ERR, ERR, ERR, ERR,
/*18 19 1A 1B 1C 1D 1E 1F */ NOR, NOR, ERR, ESC, ERR, ERR, ERR, ERR,
/* ! " # $ % & ' */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*() * + , - . / */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*0 1 2 3 4 5 6 7 */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*8 9 : ; < = > ? */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*@ A B C D E F G */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*H I J K L M N O */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*P Q R S T U V W */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*X Y Z [ \ ] ^ _ */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*` a b c d e f g */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*h i j k l m n o */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*p q r s t u v w */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*x y z { | } ~ 7F */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*80 81 82 83 84 85 86 87 */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*88 89 8A 8B 8C 8D 8E 8F */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*90 91 92 93 94 95 96 97 */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*98 99 9A 9B 9C 9D 9E 9F */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*A0 A1 A2 A3 A4 A5 A6 A7 */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*A8 A9 AA AB AC AD AE AF */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*B0 B1 B2 B3 B4 B5 B6 B7 */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*B8 B9 BA BB BC BD BE BF */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*C0 C1 C2 C3 C4 C5 C6 C7 */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*C8 C9 CA CB CC CD CE CF */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*D0 D1 D2 D3 D4 D5 D6 D7 */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*D8 D9 DA DB DC DD DE DF */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*E0 E1 E2 E3 E4 E5 E6 E7 */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*E8 E9 EA EB EC ED EE EF */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*F0 F1 F2 F3 F4 F5 F6 F7 */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*F8 F9 FA FB FC FD FE FF */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR };
void
fhandler_console::char_command (char c)
{
int x, y;
char buf[40];
switch (c)
{
case 'm': /* Set Graphics Rendition */
int i;
for (i = 0; i <= dev_state->nargs_; i++)
switch (dev_state->args_[i])
{
case 0: /* normal color */
set_default_attr ();
break;
case 1: /* bold */
dev_state->intensity = INTENSITY_BOLD;
break;
case 4:
dev_state->underline = 1;
break;
case 5: /* blink mode */
dev_state->blink = true;
break;
case 7: /* reverse */
dev_state->reverse = true;
break;
case 8: /* invisible */
dev_state->intensity = INTENSITY_INVISIBLE;
break;
case 9: /* dim */
dev_state->intensity = INTENSITY_DIM;
break;
case 10: /* end alternate charset */
dev_state->alternate_charset_active = false;
break;
case 11: /* start alternate charset */
dev_state->alternate_charset_active = true;
break;
case 24:
dev_state->underline = false;
break;
case 27:
dev_state->reverse = false;
break;
case 30: /* BLACK foreground */
dev_state->fg = 0;
break;
case 31: /* RED foreground */
dev_state->fg = FOREGROUND_RED;
break;
case 32: /* GREEN foreground */
dev_state->fg = FOREGROUND_GREEN;
break;
case 33: /* YELLOW foreground */
dev_state->fg = FOREGROUND_RED | FOREGROUND_GREEN;
break;
case 34: /* BLUE foreground */
dev_state->fg = FOREGROUND_BLUE;
break;
case 35: /* MAGENTA foreground */
dev_state->fg = FOREGROUND_RED | FOREGROUND_BLUE;
break;
case 36: /* CYAN foreground */
dev_state->fg = FOREGROUND_BLUE | FOREGROUND_GREEN;
break;
case 37: /* WHITE foreg */
dev_state->fg = FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED;
break;
case 39:
dev_state->fg = dev_state->default_color & FOREGROUND_ATTR_MASK;
break;
case 40: /* BLACK background */
dev_state->bg = 0;
break;
case 41: /* RED background */
dev_state->bg = BACKGROUND_RED;
break;
case 42: /* GREEN background */
dev_state->bg = BACKGROUND_GREEN;
break;
case 43: /* YELLOW background */
dev_state->bg = BACKGROUND_RED | BACKGROUND_GREEN;
break;
case 44: /* BLUE background */
dev_state->bg = BACKGROUND_BLUE;
break;
case 45: /* MAGENTA background */
dev_state->bg = BACKGROUND_RED | BACKGROUND_BLUE;
break;
case 46: /* CYAN background */
dev_state->bg = BACKGROUND_BLUE | BACKGROUND_GREEN;
break;
case 47: /* WHITE background */
dev_state->bg = BACKGROUND_BLUE | BACKGROUND_GREEN | BACKGROUND_RED;
break;
case 49:
dev_state->bg = dev_state->default_color & BACKGROUND_ATTR_MASK;
break;
}
dev_state->current_win32_attr = get_win32_attr ();
SetConsoleTextAttribute (get_output_handle (), dev_state->current_win32_attr);
break;
case 'h':
case 'l':
if (!dev_state->saw_question_mark)
{
switch (dev_state->args_[0])
{
case 4: /* Insert mode */
dev_state->insert_mode = (c == 'h') ? true : false;
syscall_printf ("insert mode %sabled", dev_state->insert_mode ? "en" : "dis");
break;
}
break;
}
switch (dev_state->args_[0])
{
case 47: /* Save/Restore screen */
if (c == 'h') /* save */
{
CONSOLE_SCREEN_BUFFER_INFO now;
COORD cob = { 0, 0 };
if (!GetConsoleScreenBufferInfo (get_output_handle (), &now))
break;
dev_state->savebufsiz.X = now.srWindow.Right - now.srWindow.Left + 1;
dev_state->savebufsiz.Y = now.srWindow.Bottom - now.srWindow.Top + 1;
if (dev_state->savebuf)
cfree (dev_state->savebuf);
dev_state->savebuf = (PCHAR_INFO) cmalloc (HEAP_1_BUF, sizeof (CHAR_INFO) *
dev_state->savebufsiz.X * dev_state->savebufsiz.Y);
ReadConsoleOutputA (get_output_handle (), dev_state->savebuf,
dev_state->savebufsiz, cob, &now.srWindow);
}
else /* restore */
{
CONSOLE_SCREEN_BUFFER_INFO now;
COORD cob = { 0, 0 };
if (!GetConsoleScreenBufferInfo (get_output_handle (), &now))
break;
if (!dev_state->savebuf)
break;
WriteConsoleOutputA (get_output_handle (), dev_state->savebuf,
dev_state->savebufsiz, cob, &now.srWindow);
cfree (dev_state->savebuf);
dev_state->savebuf = NULL;
dev_state->savebufsiz.X = dev_state->savebufsiz.Y = 0;
}
break;
case 1000: /* Mouse support */
dev_state->use_mouse = (c == 'h') ? true : false;
syscall_printf ("mouse support %sabled", dev_state->use_mouse ? "en" : "dis");
break;
case 2000: /* Raw keyboard mode */
set_raw_win32_keyboard_mode ((c == 'h') ? true : false);
break;
default: /* Ignore */
syscall_printf ("unknown h/l command: %d", dev_state->args_[0]);
break;
}
break;
case 'J':
switch (dev_state->args_[0])
{
case 0: /* Clear to end of screen */
cursor_get (&x, &y);
clear_screen (x, y, -1, -1);
break;
case 1: /* Clear from beginning of screen to cursor */
cursor_get (&x, &y);
clear_screen (0, 0, x, y);
break;
case 2: /* Clear screen */
clear_screen (0, 0, -1, -1);
cursor_set (true, 0,0);
break;
default:
goto bad_escape;
}
break;
case 'A':
cursor_rel (0, -(dev_state->args_[0] ? dev_state->args_[0] : 1));
break;
case 'B':
cursor_rel (0, dev_state->args_[0] ? dev_state->args_[0] : 1);
break;
case 'C':
cursor_rel (dev_state->args_[0] ? dev_state->args_[0] : 1, 0);
break;
case 'D':
cursor_rel (-(dev_state->args_[0] ? dev_state->args_[0] : 1),0);
break;
case 'K':
switch (dev_state->args_[0])
{
case 0: /* Clear to end of line */
cursor_get (&x, &y);
clear_screen (x, y, -1, y);
break;
case 2: /* Clear line */
cursor_get (&x, &y);
clear_screen (0, y, -1, y);
break;
case 1: /* Clear from bol to cursor */
cursor_get (&x, &y);
clear_screen (0, y, x, y);
break;
default:
goto bad_escape;
}
break;
case 'H':
case 'f':
cursor_set (true, (dev_state->args_[1] ? dev_state->args_[1] : 1) - 1,
(dev_state->args_[0] ? dev_state->args_[0] : 1) - 1);
break;
case 'G': /* hpa - position cursor at column n - 1 */
cursor_get (&x, &y);
cursor_set (false, (dev_state->args_[0] ? dev_state->args_[0] - 1 : 0), y);
break;
case 'd': /* vpa - position cursor at line n */
cursor_get (&x, &y);
cursor_set (true, x, (dev_state->args_[0] ? dev_state->args_[0] - 1 : 0));
break;
case 's': /* Save cursor position */
cursor_get (&dev_state->savex, &dev_state->savey);
dev_state->savey -= dev_state->info.winTop;
break;
case 'u': /* Restore cursor position */
cursor_set (true, dev_state->savex, dev_state->savey);
break;
case 'I': /* TAB */
cursor_get (&x, &y);
cursor_set (false, 8 * (x / 8 + 1), y);
break;
case 'L': /* AL - insert blank lines */
dev_state->args_[0] = dev_state->args_[0] ? dev_state->args_[0] : 1;
cursor_get (&x, &y);
scroll_screen (0, y, -1, -1, 0, y + dev_state->args_[0]);
break;
case 'M': /* DL - delete lines */
dev_state->args_[0] = dev_state->args_[0] ? dev_state->args_[0] : 1;
cursor_get (&x, &y);
scroll_screen (0, y + dev_state->args_[0], -1, -1, 0, y);
break;
case '@': /* IC - insert chars */
dev_state->args_[0] = dev_state->args_[0] ? dev_state->args_[0] : 1;
cursor_get (&x, &y);
scroll_screen (x, y, -1, y, x + dev_state->args_[0], y);
break;
case 'P': /* DC - delete chars */
dev_state->args_[0] = dev_state->args_[0] ? dev_state->args_[0] : 1;
cursor_get (&x, &y);
scroll_screen (x + dev_state->args_[0], y, -1, y, x, y);
break;
case 'S': /* SF - Scroll forward */
dev_state->args_[0] = dev_state->args_[0] ? dev_state->args_[0] : 1;
scroll_screen (0, dev_state->args_[0], -1, -1, 0, 0);
break;
case 'T': /* SR - Scroll down */
fillin_info ();
dev_state->args_[0] = dev_state->args_[0] ? dev_state->args_[0] : 1;
scroll_screen (0, 0, -1, -1, 0, dev_state->info.winTop + dev_state->args_[0]);
break;
case 'X': /* ec - erase chars */
dev_state->args_[0] = dev_state->args_[0] ? dev_state->args_[0] : 1;
cursor_get (&x, &y);
scroll_screen (x + dev_state->args_[0], y, -1, y, x, y);
scroll_screen (x, y, -1, y, x + dev_state->args_[0], y);
break;
case 'Z': /* Back tab */
cursor_get (&x, &y);
cursor_set (false, ((8 * (x / 8 + 1)) - 8), y);
break;
case 'b': /* Repeat char #1 #2 times */
if (dev_state->insert_mode)
{
cursor_get (&x, &y);
scroll_screen (x, y, -1, y, x + dev_state->args_[1], y);
}
while (dev_state->args_[1]--)
WriteFile (get_output_handle (), &dev_state->args_[0], 1, (DWORD *) &x, 0);
break;
case 'c': /* u9 - Terminal enquire string */
strcpy (buf, "\033[?6c");
puts_readahead (buf);
break;
case 'n':
switch (dev_state->args_[0])
{
case 6: /* u7 - Cursor position request */
cursor_get (&x, &y);
y -= dev_state->info.winTop;
/* x -= dev_state->info.winLeft; // not available yet */
__small_sprintf (buf, "\033[%d;%dR", y + 1, x + 1);
puts_readahead (buf);
break;
default:
goto bad_escape;
}
break;
case 'r': /* Set Scroll region */
dev_state->scroll_region.Top = dev_state->args_[0] ? dev_state->args_[0] - 1 : 0;
dev_state->scroll_region.Bottom = dev_state->args_[1] ? dev_state->args_[1] - 1 : -1;
cursor_set (true, 0, 0);
break;
case 'g': /* TAB set/clear */
break;
default:
bad_escape:
break;
}
}
const unsigned char *
fhandler_console::write_normal (const unsigned char *src,
const unsigned char *end)
{
/* Scan forward to see what a char which needs special treatment */
DWORD done;
const unsigned char *found = src;
while (found < end)
{
if (base_chars[*found] != NOR)
break;
found++;
}
/* Print all the base ones out */
if (found != src)
{
DWORD len = found - src;
do
{
DWORD buf_len;
char buf[CONVERT_LIMIT];
done = buf_len = min (sizeof (buf), len);
if (!dev_state->str_to_con (buf, (const char *) src, buf_len))
{
debug_printf ("conversion error, handle %p",
get_output_handle ());
__seterrno ();
return 0;
}
if (dev_state->insert_mode)
{
int x, y;
cursor_get (&x, &y);
scroll_screen (x, y, -1, y, x + buf_len, y);
}
if (!WriteFile (get_output_handle (), buf, buf_len, &done, 0))
{
debug_printf ("write failed, handle %p", get_output_handle ());
__seterrno ();
return 0;
}
len -= done;
src += done;
}
while (len > 0);
}
if (src < end)
{
int x, y;
switch (base_chars[*src])
{
case BEL:
MessageBeep (0xFFFFFFFF);
break;
case ESC:
dev_state->state_ = gotesc;
break;
case DWN:
cursor_get (&x, &y);
if (y >= srBottom)
{
if (y >= dev_state->info.winBottom && !dev_state->scroll_region.Top)
WriteFile (get_output_handle (), "\n", 1, &done, 0);
else
{
scroll_screen (0, srTop + 1, -1, srBottom, 0, srTop);
y--;
}
}
cursor_set (false, ((tc->ti.c_oflag & ONLCR) ? 0 : x), y + 1);
break;
case BAK:
cursor_rel (-1, 0);
break;
case IGN:
cursor_rel (1, 0);
break;
case CR:
cursor_get (&x, &y);
cursor_set (false, 0, y);
break;
case ERR:
WriteFile (get_output_handle (), src, 1, &done, 0);
break;
case TAB:
cursor_get (&x, &y);
cursor_set (false, 8 * (x / 8 + 1), y);
break;
}
src ++;
}
return src;
}
int
fhandler_console::write (const void *vsrc, size_t len)
{
/* Run and check for ansi sequences */
unsigned const char *src = (unsigned char *) vsrc;
unsigned const char *end = src + len;
debug_printf ("%x, %d", vsrc, len);
while (src < end)
{
debug_printf ("at %d(%c) state is %d", *src, isprint (*src) ? *src : ' ',
dev_state->state_);
switch (dev_state->state_)
{
case normal:
src = write_normal (src, end);
if (!src) /* write_normal failed */
return -1;
break;
case gotesc:
if (*src == '[')
{
dev_state->state_ = gotsquare;
dev_state->saw_question_mark = false;
for (dev_state->nargs_ = 0; dev_state->nargs_ < MAXARGS; dev_state->nargs_++)
dev_state->args_[dev_state->nargs_] = 0;
dev_state->nargs_ = 0;
}
else if (*src == ']')
{
dev_state->rarg = 0;
dev_state->my_title_buf[0] = '\0';
dev_state->state_ = gotrsquare;
}
else if (*src == 'M') /* Reverse Index */
{
fillin_info ();
scroll_screen (0, 0, -1, -1, 0, dev_state->info.winTop + 1);
dev_state->state_ = normal;
}
else if (*src == 'c') /* Reset Linux terminal */
{
set_default_attr ();
clear_screen (0, 0, -1, -1);
cursor_set (true, 0, 0);
dev_state->state_ = normal;
}
else if (*src == '8') /* Restore cursor position */
{
cursor_set (true, dev_state->savex, dev_state->savey);
dev_state->state_ = normal;
}
else if (*src == '7') /* Save cursor position */
{
cursor_get (&dev_state->savex, &dev_state->savey);
dev_state->savey -= dev_state->info.winTop;
dev_state->state_ = normal;
}
else if (*src == 'R')
dev_state->state_ = normal;
else
{
dev_state->state_ = normal;
}
src++;
break;
case gotarg1:
if (isdigit (*src))
{
dev_state->args_[dev_state->nargs_] = dev_state->args_[dev_state->nargs_] * 10 + *src - '0';
src++;
}
else if (*src == ';')
{
src++;
dev_state->nargs_++;
if (dev_state->nargs_ >= MAXARGS)
dev_state->nargs_--;
}
else
{
dev_state->state_ = gotcommand;
}
break;
case gotcommand:
char_command (*src++);
dev_state->state_ = normal;
break;
case gotrsquare:
if (isdigit (*src))
dev_state->rarg = dev_state->rarg * 10 + (*src - '0');
else if (*src == ';' && (dev_state->rarg == 2 || dev_state->rarg == 0))
dev_state->state_ = gettitle;
else
dev_state->state_ = eattitle;
src++;
break;
case eattitle:
case gettitle:
{
int n = strlen (dev_state->my_title_buf);
if (*src < ' ')
{
if (*src == '\007' && dev_state->state_ == gettitle)
{
if (old_title)
strcpy (old_title, dev_state->my_title_buf);
set_console_title (dev_state->my_title_buf);
}
dev_state->state_ = normal;
}
else if (n < TITLESIZE)
{
dev_state->my_title_buf[n++] = *src;
dev_state->my_title_buf[n] = '\0';
}
src++;
break;
}
case gotsquare:
if (*src == ';')
{
dev_state->state_ = gotarg1;
dev_state->nargs_++;
src++;
}
else if (isalpha (*src))
dev_state->state_ = gotcommand;
else if (*src != '@' && !isalpha (*src) && !isdigit (*src))
{
if (*src == '?')
dev_state->saw_question_mark = true;
/* ignore any extra chars between [ and first arg or command */
src++;
}
else
dev_state->state_ = gotarg1;
break;
}
}
syscall_printf ("%d = write_console (,..%d)", len, len);
return len;
}
static struct {
int vk;
const char *val[4];
} keytable[] NO_COPY = {
/* NORMAL */ /* SHIFT */ /* CTRL */ /* ALT */
{VK_LEFT, {"\033[D", "\033[D", "\033[D", "\033\033[D"}},
{VK_RIGHT, {"\033[C", "\033[C", "\033[C", "\033\033[C"}},
{VK_UP, {"\033[A", "\033[A", "\033[A", "\033\033[A"}},
{VK_DOWN, {"\033[B", "\033[B", "\033[B", "\033\033[B"}},
{VK_PRIOR, {"\033[5~", "\033[5~", "\033[5~", "\033\033[5~"}},
{VK_NEXT, {"\033[6~", "\033[6~", "\033[6~", "\033\033[6~"}},
{VK_HOME, {"\033[1~", "\033[1~", "\033[1~", "\033\033[1~"}},
{VK_END, {"\033[4~", "\033[4~", "\033[4~", "\033\033[4~"}},
{VK_INSERT, {"\033[2~", "\033[2~", "\033[2~", "\033\033[2~"}},
{VK_DELETE, {"\033[3~", "\033[3~", "\033[3~", "\033\033[3~"}},
{VK_F1, {"\033[[A", "\033[23~", NULL, NULL}},
{VK_F2, {"\033[[B", "\033[24~", NULL, NULL}},
{VK_F3, {"\033[[C", "\033[25~", NULL, NULL}},
{VK_F4, {"\033[[D", "\033[26~", NULL, NULL}},
{VK_F5, {"\033[[E", "\033[28~", NULL, NULL}},
{VK_F6, {"\033[17~", "\033[29~", "\036", NULL}},
{VK_F7, {"\033[18~", "\033[31~", NULL, NULL}},
{VK_F8, {"\033[19~", "\033[32~", NULL, NULL}},
{VK_F9, {"\033[20~", "\033[33~", NULL, NULL}},
{VK_F10, {"\033[21~", "\033[34~", NULL, NULL}},
{VK_F11, {"\033[23~", NULL, NULL, NULL}},
{VK_F12, {"\033[24~", NULL, NULL, NULL}},
{VK_NUMPAD5, {"\033[G", NULL, NULL, NULL}},
{VK_CLEAR, {"\033[G", NULL, NULL, NULL}},
{'6', {NULL, NULL, "\036", NULL}},
{0, {"", NULL, NULL, NULL}}
};
const char *
get_nonascii_key (INPUT_RECORD& input_rec, char *tmp)
{
#define NORMAL 0
#define SHIFT 1
#define CONTROL 2
#define ALT 3
int modifier_index = NORMAL;
if (input_rec.Event.KeyEvent.dwControlKeyState & SHIFT_PRESSED)
modifier_index = SHIFT;
else if (input_rec.Event.KeyEvent.dwControlKeyState &
(LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED))
modifier_index = CONTROL;
else if (input_rec.Event.KeyEvent.dwControlKeyState &
(LEFT_ALT_PRESSED | RIGHT_ALT_PRESSED))
modifier_index = ALT;
for (int i = 0; keytable[i].vk; i++)
if (input_rec.Event.KeyEvent.wVirtualKeyCode == keytable[i].vk)
return keytable[i].val[modifier_index];
if (input_rec.Event.KeyEvent.uChar.AsciiChar)
{
tmp[0] = input_rec.Event.KeyEvent.uChar.AsciiChar;
tmp[1] = '\0';
return tmp;
}
return NULL;
}
void
fhandler_console::init (HANDLE f, DWORD a, mode_t bin)
{
// this->fhandler_termios::init (f, mode, bin);
/* Ensure both input and output console handles are open */
int flags = 0;
a &= GENERIC_READ | GENERIC_WRITE;
if (a == GENERIC_READ)
flags = O_RDONLY;
if (a == GENERIC_WRITE)
flags = O_WRONLY;
if (a == (GENERIC_READ | GENERIC_WRITE))
flags = O_RDWR;
open (flags | O_BINARY);
if (f != INVALID_HANDLE_VALUE)
CloseHandle (f); /* Reopened by open */
tcsetattr (0, &tc->ti);
}
int
fhandler_console::igncr_enabled (void)
{
return tc->ti.c_iflag & IGNCR;
}
void
fhandler_console::set_close_on_exec (bool val)
{
fhandler_base::set_close_on_exec (val);
set_no_inheritance (output_handle, val);
}
void
fhandler_console::fixup_after_fork (HANDLE)
{
HANDLE h = get_handle ();
HANDLE oh = get_output_handle ();
/* Windows does not allow duplication of console handles between processes
so open the console explicitly. */
cygheap->open_fhs--; /* The downside of storing this in cygheap. */
if (!open (O_NOCTTY | get_flags (), 0))
system_printf ("error opening console after fork, %E");
if (!close_on_exec ())
{
CloseHandle (h);
CloseHandle (oh);
}
}
void __stdcall
set_console_title (char *title)
{
int rc;
char buf[257];
strncpy (buf, title, sizeof (buf) - 1);
buf[sizeof (buf) - 1] = '\0';
if ((rc = WaitForSingleObject (tty_mutex, 15000)) != WAIT_OBJECT_0)
sigproc_printf ("wait for title mutex failed rc %d, %E", rc);
SetConsoleTitle (buf);
ReleaseMutex (tty_mutex);
debug_printf ("title '%s'", buf);
}
void
fhandler_console::fixup_after_exec ()
{
HANDLE h = get_handle ();
HANDLE oh = get_output_handle ();
cygheap->open_fhs--; /* The downside of storing this in cygheap. */
if (!open (O_NOCTTY | get_flags (), 0))
{
bool sawerr = false;
if (!get_io_handle ())
{
system_printf ("error opening input console handle after exec, errno %d, %E", get_errno ());
sawerr = true;
}
if (!get_output_handle ())
{
system_printf ("error opening output console handle after exec, errno %d, %E", get_errno ());
sawerr = true;
}
if (!sawerr)
system_printf ("error opening console after exec, errno %d, %E", get_errno ());
}
CloseHandle (h);
CloseHandle (oh);
return;
}
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