diff options
Diffstat (limited to 'winsup/cygwin/fhandler_console.cc')
| -rw-r--r-- | winsup/cygwin/fhandler_console.cc | 2313 |
1 files changed, 0 insertions, 2313 deletions
diff --git a/winsup/cygwin/fhandler_console.cc b/winsup/cygwin/fhandler_console.cc deleted file mode 100644 index 3cac714d1..000000000 --- a/winsup/cygwin/fhandler_console.cc +++ /dev/null @@ -1,2313 +0,0 @@ -/* fhandler_console.cc - - Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, - 2006, 2008, 2009, 2010 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 "miscfuncs.h" -#include <stdio.h> -#include <stdlib.h> -#include <wchar.h> -#include <wingdi.h> -#include <winuser.h> -#include <winnls.h> -#include <ctype.h> -#include <sys/cygwin.h> -#include <cygwin/kd.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" -#include "tls_pbuf.h" -#include "registry.h" - -/* Don't make this bigger than NT_MAX_PATH as long as the temporary buffer - is allocated using tmp_pathbuf!!! */ -#define CONVERT_LIMIT NT_MAX_PATH - -/* - * 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 *); - -const unsigned fhandler_console::MAX_WRITE_CHARS = 16384; - -static console_state NO_COPY *shared_console_info; - -dev_console NO_COPY *fhandler_console::dev_state; - -static void -beep () -{ - reg_key r (HKEY_CURRENT_USER, KEY_ALL_ACCESS, "AppEvents", "Schemes", "Apps", - ".Default", ".Default", ".Current", NULL); - if (r.created ()) - { - char *buf = NULL; - UINT len = GetWindowsDirectory (buf, 0); - buf = (char *) alloca (len += sizeof ("\\media\\ding.wav")); - UINT res = GetWindowsDirectory (buf, len); - if (res && res <= len) - r.set_string ("", strcat (buf, "\\media\\ding.wav")); - } - MessageBeep (MB_OK); -} - -/* 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->dwLastMousePosition.X = -1; - dev_state->dwLastMousePosition.Y = -1; - dev_state->dwLastButtonState = 0; /* none pressed */ - dev_state->last_button_code = 3; /* released */ - 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; - dev_state->set_default_attr (); - dev_state->backspace_keycode = CERASE; - shared_console_info->tty_min_state.sethwnd ((HWND) INVALID_HANDLE_VALUE); - } - - return &shared_console_info->tty_min_state; -} - -void -set_console_ctty () -{ - 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; -} - -inline DWORD -dev_console::con_to_str (char *d, int dlen, WCHAR w) -{ - return sys_cp_wcstombs (cygheap->locale.wctomb, cygheap->locale.charset, - d, dlen, &w, 1); -} - -inline UINT -dev_console::get_console_cp () -{ - /* The alternate charset is always 437, just as in the Linux console. */ - return alternate_charset_active ? 437 : 0; -} - -inline DWORD -dev_console::str_to_con (mbtowc_p f_mbtowc, const char *charset, - PWCHAR d, const char *s, DWORD sz) -{ - return sys_cp_mbstowcs (f_mbtowc, charset, d, CONVERT_LIMIT, 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; - dev_state->fillin_info (get_output_handle ()); - - 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); - } -} - -/* Check whether a mouse event is to be reported as an escape sequence */ -bool -fhandler_console::mouse_aware (MOUSE_EVENT_RECORD& mouse_event) -{ - if (! dev_state->use_mouse) - return 0; - - /* Adjust mouse position by window scroll buffer offset - and remember adjusted position in state for use by read() */ - CONSOLE_SCREEN_BUFFER_INFO now; - if (GetConsoleScreenBufferInfo (get_output_handle (), &now)) - { - dev_state->dwMousePosition.X = mouse_event.dwMousePosition.X - now.srWindow.Left; - dev_state->dwMousePosition.Y = mouse_event.dwMousePosition.Y - now.srWindow.Top; - } - else - { - /* Cannot adjust position by window scroll buffer offset */ - return 0; - } - - /* Check whether adjusted mouse position can be reported */ - if (dev_state->dwMousePosition.X > 0xFF - ' ' - 1 - || dev_state->dwMousePosition.Y > 0xFF - ' ' - 1) - { - /* Mouse position out of reporting range */ - return 0; - } - - return ((mouse_event.dwEventFlags == 0 || mouse_event.dwEventFlags == DOUBLE_CLICK) - && mouse_event.dwButtonState != dev_state->dwLastButtonState) - || mouse_event.dwEventFlags == MOUSE_WHEELED - || (mouse_event.dwEventFlags == MOUSE_MOVED - && (dev_state->dwMousePosition.X != dev_state->dwLastMousePosition.X - || dev_state->dwMousePosition.Y != dev_state->dwLastMousePosition.Y) - && ((dev_state->use_mouse >= 2 && mouse_event.dwButtonState) - || dev_state->use_mouse >= 3)); -} - -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 (!ReadConsoleInputW (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 => é - */ - !(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 (input_rec.Event.KeyEvent.wVirtualScanCode == 14) - { - char c = dev_state->backspace_keycode; - nread = 0; - if (control_key_state & ALT_PRESSED) { - if (dev_state->metabit) - c |= 0x80; - else - tmp[nread++] = '\e'; - } - tmp[nread++] = c; - tmp[nread] = 0; - toadd = tmp; - } - /* Allow Ctrl-Space to emit ^@ */ - else if (input_rec.Event.KeyEvent.wVirtualKeyCode == VK_SPACE - && (control_key_state & CTRL_PRESSED)) - toadd = ""; - else 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 - { - nread = dev_state->con_to_str (tmp + 1, 59, wch); - /* 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 = - /* Alt but not AltGr (= left ctrl + right alt)? */ - (control_key_state & ALT_PRESSED) != 0 - && ((control_key_state & CTRL_PRESSED) == 0 - /* but also allow Alt-AltGr: */ - || (control_key_state & ALT_PRESSED) == ALT_PRESSED - || (wch <= 0x1f || wch == 0x7f)); - if (!meta) - { - /* Determine if the character is in the current multibyte - charset. The test is easy. If the multibyte sequence - is > 1 and the first byte is ASCII CAN, the character - has been translated into the ASCII CAN + UTF-8 replacement - sequence. If so, just ignore the keypress. - FIXME: Is there a better solution? */ - if (nread > 1 && tmp[1] == 0x18) - beep (); - else - toadd = tmp + 1; - } - else if (dev_state->metabit) - { - tmp[1] |= 0x80; - 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 (); - { - MOUSE_EVENT_RECORD& mouse_event = input_rec.Event.MouseEvent; - /* As a unique guard for mouse report generation, - call mouse_aware() which is common with select(), so the result - of select() and the actual read() will be consistent on the - issue of whether input (i.e. a mouse escape sequence) will - be available or not */ - if (mouse_aware (mouse_event)) - { - /* Note: Reported mouse position was already retrieved by - mouse_aware() and adjusted by window scroll buffer offset */ - - /* 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; - } - - /* This code assumes Windows never reports multiple button - events at the same time. */ - int b = 0; - char sz[32]; - - if (mouse_event.dwEventFlags == MOUSE_WHEELED) - { - if (mouse_event.dwButtonState & 0xFF800000) - { - b = 0x41; - strcpy (sz, "wheel down"); - } - else - { - b = 0x40; - strcpy (sz, "wheel up"); - } - } - else - { - /* Ignore unimportant mouse buttons */ - mouse_event.dwButtonState &= 0x7; - - if (mouse_event.dwEventFlags == MOUSE_MOVED) - { - b = dev_state->last_button_code; - } - 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"); - } - - dev_state->last_button_code = b; - - if (mouse_event.dwEventFlags == MOUSE_MOVED) - { - b += 32; - strcpy (sz, "move"); - } - else - { - /* Remember the modified button state */ - dev_state->dwLastButtonState = mouse_event.dwButtonState; - } - } - - /* Remember mouse position */ - dev_state->dwLastMousePosition.X = dev_state->dwMousePosition.X; - dev_state->dwLastMousePosition.Y = dev_state->dwMousePosition.Y; - - /* Remember the modifiers */ - 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; - - /* Indicate the modifiers */ - b |= dev_state->nModifiers; - - /* We can now create the code. */ - sprintf (tmp, "\033[M%c%c%c", b + ' ', dev_state->dwMousePosition.X + ' ' + 1, dev_state->dwMousePosition.Y + ' ' + 1); - syscall_printf ("mouse: %s at (%d,%d)", sz, dev_state->dwMousePosition.X, dev_state->dwMousePosition.Y); - - toadd = tmp; - nread = 6; - } - } - break; - - case FOCUS_EVENT: - if (dev_state->use_focus) { - if (input_rec.Event.FocusEvent.bSetFocus) - sprintf (tmp, "\033[I"); - else - sprintf (tmp, "\033[O"); - - toadd = tmp; - nread = 3; - } - break; - - 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; - } - } - - 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; -} - -void -fhandler_console::set_input_state () -{ - if (tc->rstcons ()) - input_tcsetattr (0, &tc->ti); -} - -bool -dev_console::fillin_info (HANDLE h) -{ - bool ret; - CONSOLE_SCREEN_BUFFER_INFO linfo; - - if ((ret = GetConsoleScreenBufferInfo (h, &linfo))) - { - info.winTop = linfo.srWindow.Top; - info.winBottom = linfo.srWindow.Bottom; - info.dwWinSize.Y = 1 + linfo.srWindow.Bottom - linfo.srWindow.Top; - info.dwWinSize.X = 1 + linfo.srWindow.Right - linfo.srWindow.Left; - info.dwBufferSize = linfo.dwSize; - info.dwCursorPosition = linfo.dwCursorPosition; - info.wAttributes = linfo.wAttributes; - } - else - { - memset (&info, 0, sizeof info); - info.dwWinSize.Y = 25; - info.dwWinSize.X = 80; - 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; - - dev_state->fillin_info (get_output_handle ()); - 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) - /* nothing to do */; - else 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), false); - - set_io_handle (NULL); - set_output_handle (NULL); - - set_flags ((flags & ~O_TEXT) | O_BINARY); - - /* Open the input handle as handle_ */ - h = CreateFile ("CONIN$", GENERIC_READ | GENERIC_WRITE, - FILE_SHARE_READ | FILE_SHARE_WRITE, sec_none_cloexec (flags), - OPEN_EXISTING, 0, 0); - - if (h == INVALID_HANDLE_VALUE) - { - __seterrno (); - return 0; - } - set_io_handle (h); - uninterruptible_io (true); // Handled explicitly in read code - - h = CreateFile ("CONOUT$", GENERIC_READ | GENERIC_WRITE, - FILE_SHARE_READ | FILE_SHARE_WRITE, sec_none_cloexec (flags), - OPEN_EXISTING, 0, 0); - - if (h == INVALID_HANDLE_VALUE) - { - __seterrno (); - return 0; - } - set_output_handle (h); - - if (dev_state->fillin_info (get_output_handle ())) - { - dev_state->current_win32_attr = dev_state->info.wAttributes; - if (!dev_state->default_color) - dev_state->default_color = dev_state->info.wAttributes; - dev_state->set_default_attr (); - } - - tc->rstcons (false); - set_open_status (); - cygheap->manage_console_count ("fhandler_console::open", 1); - - DWORD cflags; - if (GetConsoleMode (get_io_handle (), &cflags)) - SetConsoleMode (get_io_handle (), - ENABLE_WINDOW_INPUT | ENABLE_MOUSE_INPUT | cflags); - - debug_printf ("opened conin$ %p, conout$ %p", get_io_handle (), - get_output_handle ()); - - return 1; -} - -int -fhandler_console::close () -{ - CloseHandle (get_io_handle ()); - CloseHandle (get_output_handle ()); - if (!hExeced) - cygheap->manage_console_count ("fhandler_console::close", -1); - 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 = dev_state->fillin_info (get_output_handle ()); - 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: - bg_check (SIGTTOU); - return 0; - case KDGKBMETA: - *(int *) buf = (dev_state->metabit) ? K_METABIT : K_ESCPREFIX; - return 0; - case KDSKBMETA: - if ((int) buf == K_METABIT) - dev_state->metabit = TRUE; - else if ((int) buf == K_ESCPREFIX) - dev_state->metabit = FALSE; - else - { - set_errno (EINVAL); - return -1; - } - return 0; - case TIOCLINUX: - if (*(unsigned char *) buf == 6) - { - *(unsigned char *) buf = (unsigned char) 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 () -{ - trunc_buf.len = 0; -} - -void -dev_console::set_color (HANDLE h) -{ - WORD win_fg = fg; - WORD win_bg = bg; - if (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); - } - - /* apply attributes */ - if (underline) - win_fg = underline_color; - /* emulate blink with bright background */ - if (blink) - win_bg |= BACKGROUND_INTENSITY; - if (intensity == INTENSITY_INVISIBLE) - win_fg = win_bg; - else if (intensity != INTENSITY_BOLD) - /* nothing to do */; - /* apply foreground intensity only in non-reverse mode! */ - else if (reverse) - win_bg |= BACKGROUND_INTENSITY; - else - win_fg |= FOREGROUND_INTENSITY; - - current_win32_attr = win_fg | win_bg; - if (h) - SetConsoleTextAttribute (h, current_win32_attr); -} - -#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 -dev_console::set_default_attr () -{ - blink = underline = reverse = false; - intensity = INTENSITY_NORMAL; - fg = default_color & FOREGROUND_ATTR_MASK; - bg = default_color & BACKGROUND_ATTR_MASK; - set_color (NULL); -} - -/* - * 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; - - dev_state->fillin_info (get_output_handle ()); - - 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; - - dev_state->fillin_info (get_output_handle ()); - 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) -{ - dev_state->fillin_info (get_output_handle ()); - 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) -{ - dev_state->fillin_info (get_output_handle ()); - *y = dev_state->info.dwCursorPosition.Y; - *x = dev_state->info.dwCursorPosition.X; -} - -/* VT100 line drawing graphics mode maps `abcdefghijklmnopqrstuvwxyz{|}~ to - graphical characters */ -static wchar_t __vt100_conv [31] = { - 0x25C6, /* Black Diamond */ - 0x2592, /* Medium Shade */ - 0x2409, /* Symbol for Horizontal Tabulation */ - 0x240C, /* Symbol for Form Feed */ - 0x240D, /* Symbol for Carriage Return */ - 0x240A, /* Symbol for Line Feed */ - 0x00B0, /* Degree Sign */ - 0x00B1, /* Plus-Minus Sign */ - 0x2424, /* Symbol for Newline */ - 0x240B, /* Symbol for Vertical Tabulation */ - 0x2518, /* Box Drawings Light Up And Left */ - 0x2510, /* Box Drawings Light Down And Left */ - 0x250C, /* Box Drawings Light Down And Right */ - 0x2514, /* Box Drawings Light Up And Right */ - 0x253C, /* Box Drawings Light Vertical And Horizontal */ - 0x23BA, /* Horizontal Scan Line-1 */ - 0x23BB, /* Horizontal Scan Line-3 */ - 0x2500, /* Box Drawings Light Horizontal */ - 0x23BC, /* Horizontal Scan Line-7 */ - 0x23BD, /* Horizontal Scan Line-9 */ - 0x251C, /* Box Drawings Light Vertical And Right */ - 0x2524, /* Box Drawings Light Vertical And Left */ - 0x2534, /* Box Drawings Light Up And Horizontal */ - 0x252C, /* Box Drawings Light Down And Horizontal */ - 0x2502, /* Box Drawings Light Vertical */ - 0x2264, /* Less-Than Or Equal To */ - 0x2265, /* Greater-Than Or Equal To */ - 0x03C0, /* Greek Small Letter Pi */ - 0x2260, /* Not Equal To */ - 0x00A3, /* Pound Sign */ - 0x00B7, /* Middle Dot */ -}; - -inline -bool fhandler_console::write_console (PWCHAR buf, DWORD len, DWORD& done) -{ - if (dev_state->iso_2022_G1 - ? dev_state->vt100_graphics_mode_G1 - : dev_state->vt100_graphics_mode_G0) - for (DWORD i = 0; i < len; i ++) - if (buf[i] >= (unsigned char) '`' && buf[i] <= (unsigned char) '~') - buf[i] = __vt100_conv[buf[i] - (unsigned char) '`']; - - while (len > 0) - { - DWORD nbytes = len > MAX_WRITE_CHARS ? MAX_WRITE_CHARS : len; - if (!WriteConsoleW (get_output_handle (), buf, nbytes, &done, 0)) - { - __seterrno (); - return false; - } - len -= done; - buf += done; - } - return true; -} - -#define BAK 1 -#define ESC 2 -#define NOR 0 -#define IGN 4 -#if 1 -#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 -#define SO 14 -#define SI 15 - -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, SO, SI, -/*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 */ - for (int i = 0; i <= dev_state->nargs_; i++) - switch (dev_state->args_[i]) - { - case 0: /* normal color */ - dev_state->set_default_attr (); - break; - case 1: /* bold */ - dev_state->intensity = INTENSITY_BOLD; - break; - case 2: /* dim */ - dev_state->intensity = INTENSITY_DIM; - break; - case 4: /* underlined */ - 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 10: /* end alternate charset */ - dev_state->alternate_charset_active = false; - break; - case 11: /* start alternate charset */ - dev_state->alternate_charset_active = true; - break; - case 22: - case 28: - dev_state->intensity = INTENSITY_NORMAL; - break; - case 24: - dev_state->underline = false; - break; - case 25: - dev_state->blink = 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->set_color (get_output_handle ()); - 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_abort (HEAP_1_BUF, sizeof (CHAR_INFO) * - dev_state->savebufsiz.X * dev_state->savebufsiz.Y); - - ReadConsoleOutputW (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; - - WriteConsoleOutputW (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 67: /* DECBKM ("DEC Backarrow Key Mode") */ - dev_state->backspace_keycode = (c == 'h' ? CTRL('H') : CERASE); - break; - - case 1000: /* Mouse tracking */ - dev_state->use_mouse = (c == 'h') ? 1 : 0; - syscall_printf ("mouse support set to mode %d", dev_state->use_mouse); - break; - - case 1002: /* Mouse button event tracking */ - dev_state->use_mouse = (c == 'h') ? 2 : 0; - syscall_printf ("mouse support set to mode %d", dev_state->use_mouse); - break; - - case 1003: /* Mouse any event tracking */ - dev_state->use_mouse = (c == 'h') ? 3 : 0; - syscall_printf ("mouse support set to mode %d", dev_state->use_mouse); - break; - - case 1004: /* Focus in/out event reporting */ - dev_state->use_focus = (c == 'h') ? true : false; - syscall_printf ("focus reporting set to %d", dev_state->use_focus); - 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 */ - dev_state->fillin_info (get_output_handle ()); - 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 */ - if (dev_state->saw_greater_than_sign) - /* Generate Secondary Device Attribute report, using 67 = ASCII 'C' - to indicate Cygwin (convention used by Rxvt, Urxvt, Screen, Mintty), - and cygwin version for terminal version. */ - __small_sprintf (buf, "\033[>67;%d%02d;0c", CYGWIN_VERSION_DLL_MAJOR, CYGWIN_VERSION_DLL_MINOR); - else - strcpy (buf, "\033[?6c"); - /* The generated report needs to be injected for read-ahead into the - fhandler_console object associated with standard input. - The current call does not work. */ - 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; - } -} - -/* This gets called when we found an invalid input character. We just - print a half filled square (UTF 0x2592). We have no chance to figure - out the "meaning" of the input char anyway. */ -inline void -fhandler_console::write_replacement_char () -{ - static const wchar_t replacement_char = 0x2592; /* Half filled square */ - DWORD done; - WriteConsoleW (get_output_handle (), &replacement_char, 1, &done, 0); -} - -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; - DWORD buf_len; - const unsigned char *found = src; - size_t ret; - mbstate_t ps; - UINT cp = dev_state->get_console_cp (); - const char *charset; - mbtowc_p f_mbtowc; - - if (cp) - { - /* The alternate charset is always 437, just as in the Linux console. */ - f_mbtowc = __cp_mbtowc; - charset = "CP437"; - } - else - { - f_mbtowc = cygheap->locale.mbtowc; - charset = cygheap->locale.charset; - } - - /* First check if we have cached lead bytes of a former try to write - a truncated multibyte sequence. If so, process it. */ - if (trunc_buf.len) - { - const unsigned char *nfound; - int cp_len = min (end - src, 4 - trunc_buf.len); - memcpy (trunc_buf.buf + trunc_buf.len, src, cp_len); - memset (&ps, 0, sizeof ps); - switch (ret = f_mbtowc (_REENT, NULL, (const char *) trunc_buf.buf, - trunc_buf.len + cp_len, charset, &ps)) - { - case -2: - /* Still truncated multibyte sequence? Keep in trunc_buf. */ - trunc_buf.len += cp_len; - return end; - case -1: - /* Give up, print replacement chars for trunc_buf... */ - for (int i = 0; i < trunc_buf.len; ++i) - write_replacement_char (); - /* ... mark trunc_buf as unused... */ - trunc_buf.len = 0; - /* ... and proceed. */ - nfound = NULL; - break; - case 0: - nfound = trunc_buf.buf + 1; - break; - default: - nfound = trunc_buf.buf + ret; - break; - } - /* Valid multibyte sequence? Process. */ - if (nfound) - { - buf_len = dev_state->str_to_con (f_mbtowc, charset, write_buf, - (const char *) trunc_buf.buf, - nfound - trunc_buf.buf); - if (!write_console (write_buf, buf_len, done)) - { - debug_printf ("multibyte sequence write failed, handle %p", get_output_handle ()); - return 0; - } - found = src + (nfound - trunc_buf.buf - trunc_buf.len); - trunc_buf.len = 0; - return found; - } - } - - memset (&ps, 0, sizeof ps); - while (found < end - && found - src < CONVERT_LIMIT - && base_chars[*found] == NOR) - { - switch (ret = f_mbtowc (_REENT, NULL, (const char *) found, - end - found, charset, &ps)) - { - case -2: - /* Truncated multibyte sequence. Stick to it until the next write. */ - trunc_buf.len = end - found; - memcpy (trunc_buf.buf, found, trunc_buf.len); - return end; - case -1: - break; - case 0: - found++; - break; - default: - found += ret; - break; - } - if (ret == (size_t) -1) /* Invalid multibyte sequence. */ - break; - } - - /* Print all the base ones out */ - if (found != src) - { - DWORD len = found - src; - buf_len = dev_state->str_to_con (f_mbtowc, charset, write_buf, - (const char *) src, len); - if (!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 (!write_console (write_buf, buf_len, done)) - { - debug_printf ("write failed, handle %p", get_output_handle ()); - return 0; - } - if (len >= CONVERT_LIMIT) - return found; - } - - if (found < end) - { - int x, y; - switch (base_chars[*found]) - { - case SO: /* Shift Out: Invoke G1 character set (ISO 2022) */ - dev_state->iso_2022_G1 = true; - break; - case SI: /* Shift In: Invoke G0 character set (ISO 2022) */ - dev_state->iso_2022_G1 = false; - break; - case BEL: - beep (); - 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) - WriteConsoleW (get_output_handle (), L"\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: - /* Don't print chars marked as ERR chars, except for a ASCII CAN - sequence which is printed as singlebyte chars from the UTF - Basic Latin and Latin 1 Supplement plains. */ - if (*found == 0x18) - { - write_replacement_char (); - if (found + 1 < end) - { - ret = __utf8_mbtowc (_REENT, NULL, (const char *) found + 1, - end - found - 1, NULL, &ps); - if (ret != (size_t) -1) - while (ret-- > 0) - { - WCHAR w = *(found + 1); - WriteConsoleW (get_output_handle (), &w, 1, &done, 0); - found++; - } - } - } - break; - case TAB: - cursor_get (&x, &y); - cursor_set (false, 8 * (x / 8 + 1), y); - break; - case NOR: - write_replacement_char (); - break; - } - found++; - } - return found; -} - -ssize_t __stdcall -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; - /* This might look a bit far fetched, but using the TLS path buffer allows - to allocate a big buffer without using the stack too much. Doing it here - in write instead of in write_normal should be faster, too. */ - tmp_pathbuf tp; - write_buf = tp.w_get (); - - 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 == '[') /* CSI Control Sequence Introducer */ - { - dev_state->state_ = gotsquare; - dev_state->saw_question_mark = false; - dev_state->saw_greater_than_sign = 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 == ']') /* OSC Operating System Command */ - { - dev_state->rarg = 0; - dev_state->my_title_buf[0] = '\0'; - dev_state->state_ = gotrsquare; - } - else if (*src == '(') /* Designate G0 character set */ - { - dev_state->state_ = gotparen; - } - else if (*src == ')') /* Designate G1 character set */ - { - dev_state->state_ = gotrparen; - } - else if (*src == 'M') /* Reverse Index (scroll down) */ - { - dev_state->fillin_info (get_output_handle ()); - scroll_screen (0, 0, -1, -1, 0, dev_state->info.winTop + 1); - dev_state->state_ = normal; - } - else if (*src == 'c') /* RIS Full Reset */ - { - dev_state->set_default_attr (); - dev_state->vt100_graphics_mode_G0 = false; - dev_state->vt100_graphics_mode_G1 = false; - dev_state->iso_2022_G1 = false; - clear_screen (0, 0, -1, -1); - cursor_set (true, 0, 0); - dev_state->state_ = normal; - } - else if (*src == '8') /* DECRC Restore cursor position */ - { - cursor_set (true, dev_state->savex, dev_state->savey); - dev_state->state_ = normal; - } - else if (*src == '7') /* DECSC 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; - else if (*src == '>') - dev_state->saw_greater_than_sign = true; - /* ignore any extra chars between [ and first arg or command */ - src++; - } - else - dev_state->state_ = gotarg1; - break; - case gotparen: /* Designate G0 Character Set (ISO 2022) */ - if (*src == '0') - dev_state->vt100_graphics_mode_G0 = true; - else - dev_state->vt100_graphics_mode_G0 = false; - dev_state->state_ = normal; - src++; - break; - case gotrparen: /* Designate G1 Character Set (ISO 2022) */ - if (*src == '0') - dev_state->vt100_graphics_mode_G1 = true; - else - dev_state->vt100_graphics_mode_G1 = false; - dev_state->state_ = normal; - src++; - break; - } - } - - syscall_printf ("%d = fhandler_console::write (...)", len); - - return len; -} - -static struct { - int vk; - const char *val[4]; -} keytable[] NO_COPY = { - /* NORMAL */ /* SHIFT */ /* CTRL */ /* CTRL-SHIFT */ - /* Unmodified and Alt-modified keypad keys comply with linux console - SHIFT, CTRL, CTRL-SHIFT modifiers comply with xterm modifier usage */ - {VK_NUMPAD5, {"\033[G", "\033[1;2G", "\033[1;5G", "\033[1;6G"}}, - {VK_CLEAR, {"\033[G", "\033[1;2G", "\033[1;5G", "\033[1;6G"}}, - {VK_LEFT, {"\033[D", "\033[1;2D", "\033[1;5D", "\033[1;6D"}}, - {VK_RIGHT, {"\033[C", "\033[1;2C", "\033[1;5C", "\033[1;6C"}}, - {VK_UP, {"\033[A", "\033[1;2A", "\033[1;5A", "\033[1;6A"}}, - {VK_DOWN, {"\033[B", "\033[1;2B", "\033[1;5B", "\033[1;6B"}}, - {VK_PRIOR, {"\033[5~", "\033[5;2~", "\033[5;5~", "\033[5;6~"}}, - {VK_NEXT, {"\033[6~", "\033[6;2~", "\033[6;5~", "\033[6;6~"}}, - {VK_HOME, {"\033[1~", "\033[1;2~", "\033[1;5~", "\033[1;6~"}}, - {VK_END, {"\033[4~", "\033[4;2~", "\033[4;5~", "\033[4;6~"}}, - {VK_INSERT, {"\033[2~", "\033[2;2~", "\033[2;5~", "\033[2;6~"}}, - {VK_DELETE, {"\033[3~", "\033[3;2~", "\033[3;5~", "\033[3;6~"}}, - /* F1...F12, SHIFT-F1...SHIFT-F10 comply with linux console - F6...F12, and all modified F-keys comply with rxvt (compatible extension) */ - {VK_F1, {"\033[[A", "\033[23~", "\033[11^", "\033[23^"}}, - {VK_F2, {"\033[[B", "\033[24~", "\033[12^", "\033[24^"}}, - {VK_F3, {"\033[[C", "\033[25~", "\033[13^", "\033[25^"}}, - {VK_F4, {"\033[[D", "\033[26~", "\033[14^", "\033[26^"}}, - {VK_F5, {"\033[[E", "\033[28~", "\033[15^", "\033[28^"}}, - {VK_F6, {"\033[17~", "\033[29~", "\033[17^", "\033[29^"}}, - {VK_F7, {"\033[18~", "\033[31~", "\033[18^", "\033[31^"}}, - {VK_F8, {"\033[19~", "\033[32~", "\033[19^", "\033[32^"}}, - {VK_F9, {"\033[20~", "\033[33~", "\033[20^", "\033[33^"}}, - {VK_F10, {"\033[21~", "\033[34~", "\033[21^", "\033[34^"}}, - {VK_F11, {"\033[23~", "\033[23$", "\033[23^", "\033[23@"}}, - {VK_F12, {"\033[24~", "\033[24$", "\033[24^", "\033[24@"}}, - /* CTRL-6 complies with Windows cmd console but should be fixed */ - {'6', {NULL, NULL, "\036", NULL}}, - /* Table end marker */ - {0} -}; - -const char * -get_nonascii_key (INPUT_RECORD& input_rec, char *tmp) -{ -#define NORMAL 0 -#define SHIFT 1 -#define CONTROL 2 -/*#define CONTROLSHIFT 3*/ - - int modifier_index = NORMAL; - if (input_rec.Event.KeyEvent.dwControlKeyState & SHIFT_PRESSED) - modifier_index = SHIFT; - if (input_rec.Event.KeyEvent.dwControlKeyState & - (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED)) - modifier_index += CONTROL; - - for (int i = 0; keytable[i].vk; i++) - if (input_rec.Event.KeyEvent.wVirtualKeyCode == keytable[i].vk) - { - if ((input_rec.Event.KeyEvent.dwControlKeyState & - (LEFT_ALT_PRESSED | RIGHT_ALT_PRESSED)) - && keytable[i].val[modifier_index] != NULL) - { /* Generic ESC prefixing if Alt is pressed */ - tmp[0] = '\033'; - strcpy (tmp + 1, keytable[i].val[modifier_index]); - return tmp; - } - else - 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; -} - -int -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 */ - - return !tcsetattr (0, &tc->ti); -} - -int -fhandler_console::igncr_enabled () -{ - 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 __stdcall -set_console_title (char *title) -{ - wchar_t buf[TITLESIZE + 1]; - sys_mbstowcs (buf, TITLESIZE + 1, title); - lock_ttys here (15000); - SetConsoleTitleW (buf); - debug_printf ("title '%W'", buf); -} - -void -fhandler_console::fixup_after_fork_exec (bool execing) -{ - HANDLE h = get_handle (); - HANDLE oh = get_output_handle (); - - if ((execing && close_on_exec ()) || open (O_NOCTTY | get_flags (), 0)) - cygheap->manage_console_count ("fhandler_console::fixup_after_fork_exec", -1); - else - { - if (!get_io_handle ()) - system_printf ("error opening input console handle for %s after fork/exec, errno %d, %E", get_name (), get_errno ()); - if (!get_output_handle ()) - system_printf ("error opening output console handle for %s after fork/exec, errno %d, %E", get_name (), get_errno ()); - } - - if (!close_on_exec ()) - { - CloseHandle (h); - CloseHandle (oh); - } -} - -bool NO_COPY fhandler_console::invisible_console; - -// #define WINSTA_ACCESS (WINSTA_READATTRIBUTES | STANDARD_RIGHTS_READ | STANDARD_RIGHTS_WRITE | WINSTA_CREATEDESKTOP | WINSTA_EXITWINDOWS) -#define WINSTA_ACCESS WINSTA_ALL_ACCESS - -/* Create a console in an invisible window station. This should work - in all versions of Windows NT except Windows 7 (so far). */ -bool -fhandler_console::create_invisible_console (HWINSTA horig) -{ - HWINSTA h = CreateWindowStationW (NULL, 0, WINSTA_ACCESS, NULL); - termios_printf ("%p = CreateWindowStation(NULL), %E", h); - BOOL b; - if (h) - { - b = SetProcessWindowStation (h); - termios_printf ("SetProcessWindowStation %d, %E", b); - } - b = AllocConsole (); /* will cause flashing if CreateWindowStation - failed */ - if (!h) - SetParent (GetConsoleWindow (), HWND_MESSAGE); - if (horig && h && h != horig && SetProcessWindowStation (horig)) - CloseWindowStation (h); - termios_printf ("%d = AllocConsole (), %E", b); - invisible_console = true; - return b; -} - -/* Ugly workaround for Windows 7. - - First try to just attach to any console which may have started this - app. If that works use this as our "invisible console". - - This will fail if not started from the command prompt. In that case, start - a dummy console application in a hidden state so that we can use its console - as our invisible console. This probably works everywhere but process - creation is slow and to be avoided if possible so the window station method - is vastly preferred. - - FIXME: This is not completely thread-safe since it creates two inheritable - handles which are known only to this function. If another thread starts - a process the new process will inherit these handles. However, since this - function is currently only called at startup and during exec, it shouldn't - be a big deal. */ -bool -fhandler_console::create_invisible_console_workaround () -{ - if (!AttachConsole (-1)) - { - bool taskbar; - DWORD err = GetLastError (); - path_conv helper ("/bin/cygwin-console-helper.exe"); - HANDLE hello = NULL; - HANDLE goodbye = NULL; - /* If err == ERROR_PROC_FOUND then this method won't work. But that's - ok. The window station method should work ok when AttachConsole doesn't - work. - - If the helper doesn't exist or we can't create event handles then we - can't use this method. */ - if (err == ERROR_PROC_NOT_FOUND || !helper.exists () - || !(hello = CreateEvent (&sec_none, true, false, NULL)) - || !(goodbye = CreateEvent (&sec_none, true, false, NULL))) - { - AllocConsole (); /* This is just sanity check code. We should - never actually hit here unless we're running - in an environment which lacks the helper - app. */ - taskbar = true; - } - else - { - STARTUPINFOW si = {}; - PROCESS_INFORMATION pi; - size_t len = helper.get_wide_win32_path_len (); - WCHAR cmd[len + (2 * strlen (" 0xffffffff")) + 1]; - WCHAR title[] = L"invisible cygwin console"; - - helper.get_wide_win32_path (cmd); - __small_swprintf (cmd + len, L" %p %p", hello, goodbye); - - si.cb = sizeof (si); - si.dwFlags = STARTF_USESHOWWINDOW; - si.wShowWindow = SW_HIDE; - si.lpTitle = title; - - /* Create a new hidden process. Use the two event handles as - argv[1] and argv[2]. */ - BOOL x = CreateProcessW (NULL, cmd, &sec_none_nih, &sec_none_nih, true, - CREATE_NEW_CONSOLE, NULL, NULL, &si, &pi); - if (x) - { - CloseHandle (pi.hProcess); /* Don't need */ - CloseHandle (pi.hThread); /* these. */ - } - taskbar = false; - /* Wait for subprocess to indicate that it is live. This may not - actually be needed but it's hard to say since it is possible that - there will be no console for a brief time after the process - returns and there is no easy way to determine if/when this happens - in Windows. So play it safe. */ - if (!x || (WaitForSingleObject (hello, 10000) != WAIT_OBJECT_0) - || !AttachConsole (pi.dwProcessId)) - AllocConsole (); /* Oh well. Watch the flash. */ - } - - if (!taskbar) - /* Setting the owner of the console window to HWND_MESSAGE seems to - hide it from the taskbar. Don't know if this method is faster than - calling ShowWindowAsync but it should guarantee no taskbar presence - for the hidden console. */ - SetParent (GetConsoleWindow (), HWND_MESSAGE); - if (hello) - CloseHandle (hello); - if (goodbye) - { - SetEvent (goodbye); /* Tell helper process it's ok to exit. */ - CloseHandle (goodbye); - } - } - return invisible_console = true; -} - -bool -fhandler_console::need_invisible () -{ - BOOL b = false; - if (GetConsoleCP ()) - invisible_console = false; - else - { - HWINSTA h; - /* The intent here is to allocate an "invisible" console if we have no - controlling tty or to reuse the existing console if we already have - a tty. So, first get the old window station. If there is no controlling - terminal, create a new window station and then set it as the current - window station. The subsequent AllocConsole will then be allocated - invisibly. But, after doing that we have to restore any existing windows - station or, strangely, characters will not be displayed in any windows - drawn on the current screen. We only do this if we have changed to - a new window station and if we had an existing windows station previously. - We also close the previously opened window station even though AllocConsole - is now "using" it. This doesn't seem to cause any problems. - - Things to watch out for if you make changes in this code: - - - Flashing, black consoles showing up when you start, e.g., ssh in - an xterm. - - Non-displaying of characters in rxvt or xemacs if you start a - process using setsid: bash -lc "setsid rxvt". */ - - h = GetProcessWindowStation (); - - USEROBJECTFLAGS oi; - DWORD len; - if (!h - || !GetUserObjectInformationW (h, UOI_FLAGS, &oi, sizeof (oi), &len) - || !(oi.dwFlags & WSF_VISIBLE)) - { - b = true; - debug_printf ("window station is not visible"); - AllocConsole (); - invisible_console = true; - } - else if (wincap.has_broken_alloc_console ()) - b = create_invisible_console_workaround (); - else - b = create_invisible_console (h); - } - - debug_printf ("invisible_console %d", invisible_console); - return b; -} |