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Diffstat (limited to 'src/os_win32.c')
| -rw-r--r-- | src/os_win32.c | 4790 |
1 files changed, 4790 insertions, 0 deletions
diff --git a/src/os_win32.c b/src/os_win32.c new file mode 100644 index 000000000..74b896032 --- /dev/null +++ b/src/os_win32.c @@ -0,0 +1,4790 @@ +/* vi:set ts=8 sts=4 sw=4: + * + * VIM - Vi IMproved by Bram Moolenaar + * + * Do ":help uganda" in Vim to read copying and usage conditions. + * Do ":help credits" in Vim to see a list of people who contributed. + * See README.txt for an overview of the Vim source code. + */ +/* + * os_win32.c + * + * Used for both the console version and the Win32 GUI. A lot of code is for + * the console version only, so there is a lot of "#ifndef FEAT_GUI_W32". + * + * Win32 (Windows NT and Windows 95) system-dependent routines. + * Portions lifted from the Win32 SDK samples, the MSDOS-dependent code, + * NetHack 3.1.3, GNU Emacs 19.30, and Vile 5.5. + * + * George V. Reilly <george@reilly.org> wrote most of this. + * Roger Knobbe <rogerk@wonderware.com> did the initial port of Vim 3.0. + */ + +#include <io.h> +#include "vim.h" + +#ifdef HAVE_FCNTL_H +# include <fcntl.h> +#endif +#include <sys/types.h> +#include <errno.h> +#include <signal.h> +#include <limits.h> +#include <process.h> + +#undef chdir +#ifdef __GNUC__ +# ifndef __MINGW32__ +# include <dirent.h> +# endif +#else +# include <direct.h> +#endif + +#if defined(FEAT_TITLE) && !defined(FEAT_GUI_W32) +# include <shellapi.h> +#endif + +#ifdef __MINGW32__ +# ifndef FROM_LEFT_1ST_BUTTON_PRESSED +# define FROM_LEFT_1ST_BUTTON_PRESSED 0x0001 +# endif +# ifndef RIGHTMOST_BUTTON_PRESSED +# define RIGHTMOST_BUTTON_PRESSED 0x0002 +# endif +# ifndef FROM_LEFT_2ND_BUTTON_PRESSED +# define FROM_LEFT_2ND_BUTTON_PRESSED 0x0004 +# endif +# ifndef FROM_LEFT_3RD_BUTTON_PRESSED +# define FROM_LEFT_3RD_BUTTON_PRESSED 0x0008 +# endif +# ifndef FROM_LEFT_4TH_BUTTON_PRESSED +# define FROM_LEFT_4TH_BUTTON_PRESSED 0x0010 +# endif + +/* + * EventFlags + */ +# ifndef MOUSE_MOVED +# define MOUSE_MOVED 0x0001 +# endif +# ifndef DOUBLE_CLICK +# define DOUBLE_CLICK 0x0002 +# endif +#endif + +/* Record all output and all keyboard & mouse input */ +/* #define MCH_WRITE_DUMP */ + +#ifdef MCH_WRITE_DUMP +FILE* fdDump = NULL; +#endif + +/* + * When generating prototypes for Win32 on Unix, these lines make the syntax + * errors disappear. They do not need to be correct. + */ +#ifdef PROTO +#define WINAPI +#define WINBASEAPI +typedef char * LPCSTR; +typedef int ACCESS_MASK; +typedef int BOOL; +typedef int COLORREF; +typedef int CONSOLE_CURSOR_INFO; +typedef int COORD; +typedef int DWORD; +typedef int HANDLE; +typedef int HDC; +typedef int HFONT; +typedef int HICON; +typedef int HINSTANCE; +typedef int HWND; +typedef int INPUT_RECORD; +typedef int KEY_EVENT_RECORD; +typedef int LOGFONT; +typedef int LPBOOL; +typedef int LPCTSTR; +typedef int LPDWORD; +typedef int LPSTR; +typedef int LPTSTR; +typedef int LPVOID; +typedef int MOUSE_EVENT_RECORD; +typedef int PACL; +typedef int PDWORD; +typedef int PHANDLE; +typedef int PRINTDLG; +typedef int PSECURITY_DESCRIPTOR; +typedef int PSID; +typedef int SECURITY_INFORMATION; +typedef int SHORT; +typedef int SMALL_RECT; +typedef int TEXTMETRIC; +typedef int TOKEN_INFORMATION_CLASS; +typedef int TRUSTEE; +typedef int WORD; +typedef int WCHAR; +typedef void VOID; +#endif + +#ifndef FEAT_GUI_W32 +/* Undocumented API in kernel32.dll needed to work around dead key bug in + * console-mode applications in NT 4.0. If you switch keyboard layouts + * in a console app to a layout that includes dead keys and then hit a + * dead key, a call to ToAscii will trash the stack. My thanks to Ian James + * and Michael Dietrich for helping me figure out this workaround. + */ + +/* WINBASEAPI BOOL WINAPI GetConsoleKeyboardLayoutNameA(LPSTR); */ +#ifndef WINBASEAPI +# define WINBASEAPI __stdcall +#endif +#if defined(__BORLANDC__) +typedef BOOL (__stdcall *PFNGCKLN)(LPSTR); +#else +typedef WINBASEAPI BOOL (WINAPI *PFNGCKLN)(LPSTR); +#endif +PFNGCKLN s_pfnGetConsoleKeyboardLayoutName = NULL; +#endif + +#if defined(__BORLANDC__) +/* Strangely Borland uses a non-standard name. */ +# define wcsicmp(a, b) wcscmpi((a), (b)) +#endif + +#ifndef FEAT_GUI_W32 +/* Win32 Console handles for input and output */ +static HANDLE g_hConIn = INVALID_HANDLE_VALUE; +static HANDLE g_hConOut = INVALID_HANDLE_VALUE; + +/* Win32 Screen buffer,coordinate,console I/O information */ +static SMALL_RECT g_srScrollRegion; +static COORD g_coord; /* 0-based, but external coords are 1-based */ + +/* The attribute of the screen when the editor was started */ +static WORD g_attrDefault = 7; /* lightgray text on black background */ +static WORD g_attrCurrent; + +static int g_fCBrkPressed = FALSE; /* set by ctrl-break interrupt */ +static int g_fCtrlCPressed = FALSE; /* set when ctrl-C or ctrl-break detected */ +static int g_fForceExit = FALSE; /* set when forcefully exiting */ + +static void termcap_mode_start(void); +static void termcap_mode_end(void); +static void clear_chars(COORD coord, DWORD n); +static void clear_screen(void); +static void clear_to_end_of_display(void); +static void clear_to_end_of_line(void); +static void scroll(unsigned cLines); +static void set_scroll_region(unsigned left, unsigned top, + unsigned right, unsigned bottom); +static void insert_lines(unsigned cLines); +static void delete_lines(unsigned cLines); +static void gotoxy(unsigned x, unsigned y); +static void normvideo(void); +static void textattr(WORD wAttr); +static void textcolor(WORD wAttr); +static void textbackground(WORD wAttr); +static void standout(void); +static void standend(void); +static void visual_bell(void); +static void cursor_visible(BOOL fVisible); +static BOOL write_chars(LPCSTR pchBuf, DWORD cchToWrite); +static char_u tgetch(int *pmodifiers, char_u *pch2); +static void create_conin(void); +static int s_cursor_visible = TRUE; +static int did_create_conin = FALSE; +#else +static int s_dont_use_vimrun = TRUE; +static int need_vimrun_warning = FALSE; +static char *vimrun_path = "vimrun "; +#endif + +#ifndef FEAT_GUI_W32 +static int suppress_winsize = 1; /* don't fiddle with console */ +#endif + + static void +get_exe_name(void) +{ + char temp[256]; + + if (exe_name == NULL) + { + /* store the name of the executable, may be used for $VIM */ + GetModuleFileName(NULL, temp, 255); + if (*temp != NUL) + exe_name = FullName_save((char_u *)temp, FALSE); + } +} + +#if defined(DYNAMIC_GETTEXT) || defined(PROTO) +# ifndef GETTEXT_DLL +# define GETTEXT_DLL "libintl.dll" +# endif +/* Dummy funcitons */ +static char* null_libintl_gettext(const char *); +static char* null_libintl_textdomain(const char *); +static char* null_libintl_bindtextdomain(const char *, const char *); + +static HINSTANCE hLibintlDLL = 0; +char* (*dyn_libintl_gettext)(const char *) = null_libintl_gettext; +char* (*dyn_libintl_textdomain)(const char *) = null_libintl_textdomain; +char* (*dyn_libintl_bindtextdomain)(const char *, const char *) + = null_libintl_bindtextdomain; + + int +dyn_libintl_init(char *libname) +{ + int i; + static struct + { + char *name; + FARPROC *ptr; + } libintl_entry[] = + { + {"gettext", (FARPROC*)&dyn_libintl_gettext}, + {"textdomain", (FARPROC*)&dyn_libintl_textdomain}, + {"bindtextdomain", (FARPROC*)&dyn_libintl_bindtextdomain}, + {NULL, NULL} + }; + + /* No need to initialize twice. */ + if (hLibintlDLL) + return 1; + /* Load gettext library (libintl.dll) */ + hLibintlDLL = LoadLibrary(libname != NULL ? libname : GETTEXT_DLL); + if (!hLibintlDLL) + { + char_u dirname[_MAX_PATH]; + + /* Try using the path from gvim.exe to find the .dll there. */ + get_exe_name(); + STRCPY(dirname, exe_name); + STRCPY(gettail(dirname), GETTEXT_DLL); + hLibintlDLL = LoadLibrary((char *)dirname); + if (!hLibintlDLL) + { + if (p_verbose > 0) + EMSG2(_(e_loadlib), GETTEXT_DLL); + return 0; + } + } + for (i = 0; libintl_entry[i].name != NULL + && libintl_entry[i].ptr != NULL; ++i) + { + if ((*libintl_entry[i].ptr = (FARPROC)GetProcAddress(hLibintlDLL, + libintl_entry[i].name)) == NULL) + { + dyn_libintl_end(); + if (p_verbose > 0) + EMSG2(_(e_loadfunc), libintl_entry[i].name); + return 0; + } + } + return 1; +} + + void +dyn_libintl_end() +{ + if (hLibintlDLL) + FreeLibrary(hLibintlDLL); + hLibintlDLL = NULL; + dyn_libintl_gettext = null_libintl_gettext; + dyn_libintl_textdomain = null_libintl_textdomain; + dyn_libintl_bindtextdomain = null_libintl_bindtextdomain; +} + + static char * +null_libintl_gettext(const char* msgid) +{ + return (char*)msgid; +} + + static char * +null_libintl_bindtextdomain(const char* domainname, const char* dirname) +{ + return NULL; +} + + static char * +null_libintl_textdomain(const char* domainname) +{ + return NULL; +} + +#endif /* DYNAMIC_GETTEXT */ + +/* This symbol is not defined in older versions of the SDK or Visual C++ */ + +#ifndef VER_PLATFORM_WIN32_WINDOWS +# define VER_PLATFORM_WIN32_WINDOWS 1 +#endif + +DWORD g_PlatformId; + +#ifdef HAVE_ACL +# include <aclapi.h> +/* + * These are needed to dynamically load the ADVAPI DLL, which is not + * implemented under Windows 95 (and causes VIM to crash) + */ +typedef DWORD (WINAPI *PSNSECINFO) (LPTSTR, enum SE_OBJECT_TYPE, + SECURITY_INFORMATION, PSID, PSID, PACL, PACL); +typedef DWORD (WINAPI *PGNSECINFO) (LPSTR, enum SE_OBJECT_TYPE, + SECURITY_INFORMATION, PSID *, PSID *, PACL *, PACL *, + PSECURITY_DESCRIPTOR *); + +static HANDLE advapi_lib = NULL; /* Handle for ADVAPI library */ +static PSNSECINFO pSetNamedSecurityInfo; +static PGNSECINFO pGetNamedSecurityInfo; +#endif + +/* + * Set g_PlatformId to VER_PLATFORM_WIN32_NT (NT) or + * VER_PLATFORM_WIN32_WINDOWS (Win95). + */ + void +PlatformId(void) +{ + static int done = FALSE; + + if (!done) + { + OSVERSIONINFO ovi; + + ovi.dwOSVersionInfoSize = sizeof(ovi); + GetVersionEx(&ovi); + + g_PlatformId = ovi.dwPlatformId; + +#ifdef HAVE_ACL + /* + * Load the ADVAPI runtime if we are on anything + * other than Windows 95 + */ + if (g_PlatformId == VER_PLATFORM_WIN32_NT) + { + /* + * do this load. Problems: Doesn't unload at end of run (this is + * theoretically okay, since Windows should unload it when VIM + * terminates). Should we be using the 'mch_libcall' routines? + * Seems like a lot of overhead to load/unload ADVAPI32.DLL each + * time we verify security... + */ + advapi_lib = LoadLibrary("ADVAPI32.DLL"); + if (advapi_lib != NULL) + { + pSetNamedSecurityInfo = (PSNSECINFO)GetProcAddress(advapi_lib, + "SetNamedSecurityInfoA"); + pGetNamedSecurityInfo = (PGNSECINFO)GetProcAddress(advapi_lib, + "GetNamedSecurityInfoA"); + if (pSetNamedSecurityInfo == NULL + || pGetNamedSecurityInfo == NULL) + { + /* If we can't get the function addresses, set advapi_lib + * to NULL so that we don't use them. */ + FreeLibrary(advapi_lib); + advapi_lib = NULL; + } + } + } +#endif + done = TRUE; + } +} + +/* + * Return TRUE when running on Windows 95 (or 98 or ME). + * Only to be used after mch_init(). + */ + int +mch_windows95(void) +{ + return g_PlatformId == VER_PLATFORM_WIN32_WINDOWS; +} + +#ifdef FEAT_GUI_W32 +/* + * Used to work around the "can't do synchronous spawn" + * problem on Win32s, without resorting to Universal Thunk. + */ +static int old_num_windows; +static int num_windows; + + static BOOL CALLBACK +win32ssynch_cb(HWND hwnd, LPARAM lparam) +{ + num_windows++; + return TRUE; +} +#endif + +#ifndef FEAT_GUI_W32 + +#define SHIFT (SHIFT_PRESSED) +#define CTRL (RIGHT_CTRL_PRESSED | LEFT_CTRL_PRESSED) +#define ALT (RIGHT_ALT_PRESSED | LEFT_ALT_PRESSED) +#define ALT_GR (RIGHT_ALT_PRESSED | LEFT_CTRL_PRESSED) + + +/* When uChar.AsciiChar is 0, then we need to look at wVirtualKeyCode. + * We map function keys to their ANSI terminal equivalents, as produced + * by ANSI.SYS, for compatibility with the MS-DOS version of Vim. Any + * ANSI key with a value >= '\300' is nonstandard, but provided anyway + * so that the user can have access to all SHIFT-, CTRL-, and ALT- + * combinations of function/arrow/etc keys. + */ + +const static struct +{ + WORD wVirtKey; + BOOL fAnsiKey; + int chAlone; + int chShift; + int chCtrl; + int chAlt; +} VirtKeyMap[] = +{ + +/* Key ANSI alone shift ctrl alt */ + { VK_ESCAPE,FALSE, ESC, ESC, ESC, ESC, }, + + { VK_F1, TRUE, ';', 'T', '^', 'h', }, + { VK_F2, TRUE, '<', 'U', '_', 'i', }, + { VK_F3, TRUE, '=', 'V', '`', 'j', }, + { VK_F4, TRUE, '>', 'W', 'a', 'k', }, + { VK_F5, TRUE, '?', 'X', 'b', 'l', }, + { VK_F6, TRUE, '@', 'Y', 'c', 'm', }, + { VK_F7, TRUE, 'A', 'Z', 'd', 'n', }, + { VK_F8, TRUE, 'B', '[', 'e', 'o', }, + { VK_F9, TRUE, 'C', '\\', 'f', 'p', }, + { VK_F10, TRUE, 'D', ']', 'g', 'q', }, + { VK_F11, TRUE, '\205', '\207', '\211', '\213', }, + { VK_F12, TRUE, '\206', '\210', '\212', '\214', }, + + { VK_HOME, TRUE, 'G', '\302', 'w', '\303', }, + { VK_UP, TRUE, 'H', '\304', '\305', '\306', }, + { VK_PRIOR, TRUE, 'I', '\307', '\204', '\310', }, /*PgUp*/ + { VK_LEFT, TRUE, 'K', '\311', 's', '\312', }, + { VK_RIGHT, TRUE, 'M', '\313', 't', '\314', }, + { VK_END, TRUE, 'O', '\315', 'u', '\316', }, + { VK_DOWN, TRUE, 'P', '\317', '\320', '\321', }, + { VK_NEXT, TRUE, 'Q', '\322', 'v', '\323', }, /*PgDn*/ + { VK_INSERT,TRUE, 'R', '\324', '\325', '\326', }, + { VK_DELETE,TRUE, 'S', '\327', '\330', '\331', }, + + { VK_SNAPSHOT,TRUE, 0, 0, 0, 'r', }, /*PrtScrn*/ + +#if 0 + /* Most people don't have F13-F20, but what the hell... */ + { VK_F13, TRUE, '\332', '\333', '\334', '\335', }, + { VK_F14, TRUE, '\336', '\337', '\340', '\341', }, + { VK_F15, TRUE, '\342', '\343', '\344', '\345', }, + { VK_F16, TRUE, '\346', '\347', '\350', '\351', }, + { VK_F17, TRUE, '\352', '\353', '\354', '\355', }, + { VK_F18, TRUE, '\356', '\357', '\360', '\361', }, + { VK_F19, TRUE, '\362', '\363', '\364', '\365', }, + { VK_F20, TRUE, '\366', '\367', '\370', '\371', }, +#endif + { VK_ADD, TRUE, 'N', 'N', 'N', 'N', }, /* keyp '+' */ + { VK_SUBTRACT, TRUE,'J', 'J', 'J', 'J', }, /* keyp '-' */ + /* { VK_DIVIDE, TRUE,'N', 'N', 'N', 'N', }, keyp '/' */ + { VK_MULTIPLY, TRUE,'7', '7', '7', '7', }, /* keyp '*' */ + + { VK_NUMPAD0,TRUE, '\332', '\333', '\334', '\335', }, + { VK_NUMPAD1,TRUE, '\336', '\337', '\340', '\341', }, + { VK_NUMPAD2,TRUE, '\342', '\343', '\344', '\345', }, + { VK_NUMPAD3,TRUE, '\346', '\347', '\350', '\351', }, + { VK_NUMPAD4,TRUE, '\352', '\353', '\354', '\355', }, + { VK_NUMPAD5,TRUE, '\356', '\357', '\360', '\361', }, + { VK_NUMPAD6,TRUE, '\362', '\363', '\364', '\365', }, + { VK_NUMPAD7,TRUE, '\366', '\367', '\370', '\371', }, + { VK_NUMPAD8,TRUE, '\372', '\373', '\374', '\375', }, + /* Sorry, out of number space! <negri>*/ + { VK_NUMPAD9,TRUE, '\376', '\377', '\377', '\367', }, + +}; + + +#ifdef _MSC_VER +// The ToAscii bug destroys several registers. Need to turn off optimization +// or the GetConsoleKeyboardLayoutName hack will fail in non-debug versions +# pragma optimize("", off) +#endif + +#if defined(__GNUC__) && !defined(__MINGW32__) && !defined(__CYGWIN__) +# define AChar AsciiChar +#else +# define AChar uChar.AsciiChar +#endif + +/* The return code indicates key code size. */ + static int +#ifdef __BORLANDC__ + __stdcall +#endif +win32_kbd_patch_key( + KEY_EVENT_RECORD* pker) +{ + UINT uMods = pker->dwControlKeyState; + static int s_iIsDead = 0; + static WORD awAnsiCode[2]; + static BYTE abKeystate[256]; + + + if (s_iIsDead == 2) + { + pker->AChar = (CHAR) awAnsiCode[1]; + s_iIsDead = 0; + return 1; + } + + if (pker->AChar != 0) + return 1; + + memset(abKeystate, 0, sizeof (abKeystate)); + + // Should only be non-NULL on NT 4.0 + if (s_pfnGetConsoleKeyboardLayoutName != NULL) + { + CHAR szKLID[KL_NAMELENGTH]; + + if ((*s_pfnGetConsoleKeyboardLayoutName)(szKLID)) + (void)LoadKeyboardLayout(szKLID, KLF_ACTIVATE); + } + + /* Clear any pending dead keys */ + ToAscii(VK_SPACE, MapVirtualKey(VK_SPACE, 0), abKeystate, awAnsiCode, 0); + + if (uMods & SHIFT_PRESSED) + abKeystate[VK_SHIFT] = 0x80; + if (uMods & CAPSLOCK_ON) + abKeystate[VK_CAPITAL] = 1; + + if ((uMods & ALT_GR) == ALT_GR) + { + abKeystate[VK_CONTROL] = abKeystate[VK_LCONTROL] = + abKeystate[VK_MENU] = abKeystate[VK_RMENU] = 0x80; + } + + s_iIsDead = ToAscii(pker->wVirtualKeyCode, pker->wVirtualScanCode, + abKeystate, awAnsiCode, 0); + + if (s_iIsDead > 0) + pker->AChar = (CHAR) awAnsiCode[0]; + + return s_iIsDead; +} + +#ifdef _MSC_VER +/* MUST switch optimization on again here, otherwise a call to + * decode_key_event() may crash (e.g. when hitting caps-lock) */ +# pragma optimize("", on) + +# if (_MSC_VER < 1100) +/* MUST turn off global optimisation for this next function, or + * pressing ctrl-minus in insert mode crashes Vim when built with + * VC4.1. -- negri. */ +# pragma optimize("g", off) +# endif +#endif + +static BOOL g_fJustGotFocus = FALSE; + +/* + * Decode a KEY_EVENT into one or two keystrokes + */ + static BOOL +decode_key_event( + KEY_EVENT_RECORD *pker, + char_u *pch, + char_u *pch2, + int *pmodifiers, + BOOL fDoPost) +{ + int i; + const int nModifs = pker->dwControlKeyState & (SHIFT | ALT | CTRL); + + *pch = *pch2 = NUL; + g_fJustGotFocus = FALSE; + + /* ignore key up events */ + if (!pker->bKeyDown) + return FALSE; + + /* ignore some keystrokes */ + switch (pker->wVirtualKeyCode) + { + /* modifiers */ + case VK_SHIFT: + case VK_CONTROL: + case VK_MENU: /* Alt key */ + return FALSE; + + default: + break; + } + + /* special cases */ + if ((nModifs & CTRL) != 0 && (nModifs & ~CTRL) == 0 && pker->AChar == NUL) + { + /* Ctrl-6 is Ctrl-^ */ + if (pker->wVirtualKeyCode == '6') + { + *pch = Ctrl_HAT; + return TRUE; + } + /* Ctrl-2 is Ctrl-@ */ + else if (pker->wVirtualKeyCode == '2') + { + *pch = NUL; + return TRUE; + } + /* Ctrl-- is Ctrl-_ */ + else if (pker->wVirtualKeyCode == 0xBD) + { + *pch = Ctrl__; + return TRUE; + } + } + + /* Shift-TAB */ + if (pker->wVirtualKeyCode == VK_TAB && (nModifs & SHIFT_PRESSED)) + { + *pch = K_NUL; + *pch2 = '\017'; + return TRUE; + } + + for (i = sizeof(VirtKeyMap) / sizeof(VirtKeyMap[0]); --i >= 0; ) + { + if (VirtKeyMap[i].wVirtKey == pker->wVirtualKeyCode) + { + if (nModifs == 0) + *pch = VirtKeyMap[i].chAlone; + else if ((nModifs & SHIFT) != 0 && (nModifs & ~SHIFT) == 0) + *pch = VirtKeyMap[i].chShift; + else if ((nModifs & CTRL) != 0 && (nModifs & ~CTRL) == 0) + *pch = VirtKeyMap[i].chCtrl; + else if ((nModifs & ALT) != 0 && (nModifs & ~ALT) == 0) + *pch = VirtKeyMap[i].chAlt; + + if (*pch != 0) + { + if (VirtKeyMap[i].fAnsiKey) + { + *pch2 = *pch; + *pch = K_NUL; + } + + return TRUE; + } + } + } + + i = win32_kbd_patch_key(pker); + + if (i < 0) + *pch = NUL; + else + { + *pch = (i > 0) ? pker->AChar : NUL; + + if (pmodifiers != NULL) + { + /* Pass on the ALT key as a modifier, but only when not combined + * with CTRL (which is ALTGR). */ + if ((nModifs & ALT) != 0 && (nModifs & CTRL) == 0) + *pmodifiers |= MOD_MASK_ALT; + + /* Pass on SHIFT only for special keys, because we don't know when + * it's already included with the character. */ + if ((nModifs & SHIFT) != 0 && *pch <= 0x20) + *pmodifiers |= MOD_MASK_SHIFT; + + /* Pass on CTRL only for non-special keys, because we don't know + * when it's already included with the character. And not when + * combined with ALT (which is ALTGR). */ + if ((nModifs & CTRL) != 0 && (nModifs & ALT) == 0 + && *pch >= 0x20 && *pch < 0x80) + *pmodifiers |= MOD_MASK_CTRL; + } + } + + return (*pch != NUL); +} + +#ifdef _MSC_VER +# pragma optimize("", on) +#endif + +#endif /* FEAT_GUI_W32 */ + + +#ifdef FEAT_MOUSE + +/* + * For the GUI the mouse handling is in gui_w32.c. + */ +# ifdef FEAT_GUI_W32 + void +mch_setmouse( + int on) +{ +} +# else +static int g_fMouseAvail = FALSE; /* mouse present */ +static int g_fMouseActive = FALSE; /* mouse enabled */ +static int g_nMouseClick = -1; /* mouse status */ +static int g_xMouse; /* mouse x coordinate */ +static int g_yMouse; /* mouse y coordinate */ + +/* + * Enable or disable mouse input + */ + void +mch_setmouse( + int on) +{ + DWORD cmodein; + + if (!g_fMouseAvail) + return; + + g_fMouseActive = on; + GetConsoleMode(g_hConIn, &cmodein); + + if (g_fMouseActive) + cmodein |= ENABLE_MOUSE_INPUT; + else + cmodein &= ~ENABLE_MOUSE_INPUT; + + SetConsoleMode(g_hConIn, cmodein); +} + + +/* + * Decode a MOUSE_EVENT. If it's a valid event, return MOUSE_LEFT, + * MOUSE_MIDDLE, or MOUSE_RIGHT for a click; MOUSE_DRAG for a mouse + * move with a button held down; and MOUSE_RELEASE after a MOUSE_DRAG + * or a MOUSE_LEFT, _MIDDLE, or _RIGHT. We encode the button type, + * the number of clicks, and the Shift/Ctrl/Alt modifiers in g_nMouseClick, + * and we return the mouse position in g_xMouse and g_yMouse. + * + * Every MOUSE_LEFT, _MIDDLE, or _RIGHT will be followed by zero or more + * MOUSE_DRAGs and one MOUSE_RELEASE. MOUSE_RELEASE will be followed only + * by MOUSE_LEFT, _MIDDLE, or _RIGHT. + * + * For multiple clicks, we send, say, MOUSE_LEFT/1 click, MOUSE_RELEASE, + * MOUSE_LEFT/2 clicks, MOUSE_RELEASE, MOUSE_LEFT/3 clicks, MOUSE_RELEASE, .... + * + * Windows will send us MOUSE_MOVED notifications whenever the mouse + * moves, even if it stays within the same character cell. We ignore + * all MOUSE_MOVED messages if the position hasn't really changed, and + * we ignore all MOUSE_MOVED messages where no button is held down (i.e., + * we're only interested in MOUSE_DRAG). + * + * All of this is complicated by the code that fakes MOUSE_MIDDLE on + * 2-button mouses by pressing the left & right buttons simultaneously. + * In practice, it's almost impossible to click both at the same time, + * so we need to delay a little. Also, we tend not to get MOUSE_RELEASE + * in such cases, if the user is clicking quickly. + */ + static BOOL +decode_mouse_event( + MOUSE_EVENT_RECORD* pmer) +{ + static int s_nOldButton = -1; + static int s_nOldMouseClick = -1; + static int s_xOldMouse = -1; + static int s_yOldMouse = -1; + static linenr_T s_old_topline = 0; +#ifdef FEAT_DIFF + static int s_old_topfill = 0; +#endif + static int s_cClicks = 1; + static BOOL s_fReleased = TRUE; + static DWORD s_dwLastClickTime = 0; + static BOOL s_fNextIsMiddle = FALSE; + + static DWORD cButtons = 0; /* number of buttons supported */ + + const DWORD LEFT = FROM_LEFT_1ST_BUTTON_PRESSED; + const DWORD MIDDLE = FROM_LEFT_2ND_BUTTON_PRESSED; + const DWORD RIGHT = RIGHTMOST_BUTTON_PRESSED; + const DWORD LEFT_RIGHT = LEFT | RIGHT; + + int nButton; + + if (cButtons == 0 && !GetNumberOfConsoleMouseButtons(&cButtons)) + cButtons = 2; + + if (!g_fMouseAvail || !g_fMouseActive) + { + g_nMouseClick = -1; + return FALSE; + } + + /* get a spurious MOUSE_EVENT immediately after receiving focus; ignore */ + if (g_fJustGotFocus) + { + g_fJustGotFocus = FALSE; + return FALSE; + } + + /* unprocessed mouse click? */ + if (g_nMouseClick != -1) + return TRUE; + + nButton = -1; + g_xMouse = pmer->dwMousePosition.X; + g_yMouse = pmer->dwMousePosition.Y; + + if (pmer->dwEventFlags == MOUSE_MOVED) + { + /* ignore MOUSE_MOVED events if (x, y) hasn't changed. (We get these + * events even when the mouse moves only within a char cell.) */ + if (s_xOldMouse == g_xMouse && s_yOldMouse == g_yMouse) + return FALSE; + } + + /* If no buttons are pressed... */ + if ((pmer->dwButtonState & ((1 << cButtons) - 1)) == 0) + { + /* If the last thing returned was MOUSE_RELEASE, ignore this */ + if (s_fReleased) + return FALSE; + + nButton = MOUSE_RELEASE; + s_fReleased = TRUE; + } + else /* one or more buttons pressed */ + { + /* on a 2-button mouse, hold down left and right buttons + * simultaneously to get MIDDLE. */ + + if (cButtons == 2 && s_nOldButton != MOUSE_DRAG) + { + DWORD dwLR = (pmer->dwButtonState & LEFT_RIGHT); + + /* if either left or right button only is pressed, see if the + * the next mouse event has both of them pressed */ + if (dwLR == LEFT || dwLR == RIGHT) + { + for (;;) + { + /* wait a short time for next input event */ + if (WaitForSingleObject(g_hConIn, p_mouset / 3) + != WAIT_OBJECT_0) + break; + else + { + DWORD cRecords = 0; + INPUT_RECORD ir; + MOUSE_EVENT_RECORD* pmer2 = &ir.Event.MouseEvent; + + PeekConsoleInput(g_hConIn, &ir, 1, &cRecords); + + if (cRecords == 0 || ir.EventType != MOUSE_EVENT + || !(pmer2->dwButtonState & LEFT_RIGHT)) + break; + else + { + if (pmer2->dwEventFlags != MOUSE_MOVED) + { + ReadConsoleInput(g_hConIn, &ir, 1, &cRecords); + + return decode_mouse_event(pmer2); + } + else if (s_xOldMouse == pmer2->dwMousePosition.X && + s_yOldMouse == pmer2->dwMousePosition.Y) + { + /* throw away spurious mouse move */ + ReadConsoleInput(g_hConIn, &ir, 1, &cRecords); + + /* are there any more mouse events in queue? */ + PeekConsoleInput(g_hConIn, &ir, 1, &cRecords); + + if (cRecords==0 || ir.EventType != MOUSE_EVENT) + break; + } + else + break; + } + } + } + } + } + + if (s_fNextIsMiddle) + { + nButton = (pmer->dwEventFlags == MOUSE_MOVED) + ? MOUSE_DRAG : MOUSE_MIDDLE; + s_fNextIsMiddle = FALSE; + } + else if (cButtons == 2 && + ((pmer->dwButtonState & LEFT_RIGHT) == LEFT_RIGHT)) + { + nButton = MOUSE_MIDDLE; + + if (! s_fReleased && pmer->dwEventFlags != MOUSE_MOVED) + { + s_fNextIsMiddle = TRUE; + nButton = MOUSE_RELEASE; + } + } + else if ((pmer->dwButtonState & LEFT) == LEFT) + nButton = MOUSE_LEFT; + else if ((pmer->dwButtonState & MIDDLE) == MIDDLE) + nButton = MOUSE_MIDDLE; + else if ((pmer->dwButtonState & RIGHT) == RIGHT) + nButton = MOUSE_RIGHT; + + if (! s_fReleased && ! s_fNextIsMiddle + && nButton != s_nOldButton && s_nOldButton != MOUSE_DRAG) + return FALSE; + + s_fReleased = s_fNextIsMiddle; + } + + if (pmer->dwEventFlags == 0 || pmer->dwEventFlags == DOUBLE_CLICK) + { + /* button pressed or released, without mouse moving */ + if (nButton != -1 && nButton != MOUSE_RELEASE) + { + DWORD dwCurrentTime = GetTickCount(); + + if (s_xOldMouse != g_xMouse + || s_yOldMouse != g_yMouse + || s_nOldButton != nButton + || s_old_topline != curwin->w_topline +#ifdef FEAT_DIFF + || s_old_topfill != curwin->w_topfill +#endif + || (int)(dwCurrentTime - s_dwLastClickTime) > p_mouset) + { + s_cClicks = 1; + } + else if (++s_cClicks > 4) + { + s_cClicks = 1; + } + + s_dwLastClickTime = dwCurrentTime; + } + } + else if (pmer->dwEventFlags == MOUSE_MOVED) + { + if (nButton != -1 && nButton != MOUSE_RELEASE) + nButton = MOUSE_DRAG; + + s_cClicks = 1; + } + + if (nButton == -1) + return FALSE; + + if (nButton != MOUSE_RELEASE) + s_nOldButton = nButton; + + g_nMouseClick = nButton; + + if (pmer->dwControlKeyState & SHIFT_PRESSED) + g_nMouseClick |= MOUSE_SHIFT; + if (pmer->dwControlKeyState & (RIGHT_CTRL_PRESSED | LEFT_CTRL_PRESSED)) + g_nMouseClick |= MOUSE_CTRL; + if (pmer->dwControlKeyState & (RIGHT_ALT_PRESSED | LEFT_ALT_PRESSED)) + g_nMouseClick |= MOUSE_ALT; + + if (nButton != MOUSE_DRAG && nButton != MOUSE_RELEASE) + SET_NUM_MOUSE_CLICKS(g_nMouseClick, s_cClicks); + + /* only pass on interesting (i.e., different) mouse events */ + if (s_xOldMouse == g_xMouse + && s_yOldMouse == g_yMouse + && s_nOldMouseClick == g_nMouseClick) + { + g_nMouseClick = -1; + return FALSE; + } + + s_xOldMouse = g_xMouse; + s_yOldMouse = g_yMouse; + s_old_topline = curwin->w_topline; +#ifdef FEAT_DIFF + s_old_topfill = curwin->w_topfill; +#endif + s_nOldMouseClick = g_nMouseClick; + + return TRUE; +} + +# endif /* FEAT_GUI_W32 */ +#endif /* FEAT_MOUSE */ + + +#ifdef MCH_CURSOR_SHAPE +/* + * Set the shape of the cursor. + * 'thickness' can be from 1 (thin) to 99 (block) + */ + static void +mch_set_cursor_shape(int thickness) +{ + CONSOLE_CURSOR_INFO ConsoleCursorInfo; + ConsoleCursorInfo.dwSize = thickness; + ConsoleCursorInfo.bVisible = s_cursor_visible; + + SetConsoleCursorInfo(g_hConOut, &ConsoleCursorInfo); + if (s_cursor_visible) + SetConsoleCursorPosition(g_hConOut, g_coord); +} + + void +mch_update_cursor(void) +{ + int idx; + int thickness; + + /* + * How the cursor is drawn depends on the current mode. + */ + idx = get_shape_idx(FALSE); + + if (shape_table[idx].shape == SHAPE_BLOCK) + thickness = 99; /* 100 doesn't work on W95 */ + else + thickness = shape_table[idx].percentage; + mch_set_cursor_shape(thickness); +} +#endif + +#ifndef FEAT_GUI_W32 /* this isn't used for the GUI */ +/* + * Handle FOCUS_EVENT. + */ + static void +handle_focus_event(INPUT_RECORD ir) +{ + g_fJustGotFocus = ir.Event.FocusEvent.bSetFocus; + ui_focus_change((int)g_fJustGotFocus); +} + +/* + * Wait until console input from keyboard or mouse is available, + * or the time is up. + * Return TRUE if something is available FALSE if not. + */ + static int +WaitForChar(long msec) +{ + DWORD dwNow = 0, dwEndTime = 0; + INPUT_RECORD ir; + DWORD cRecords; + char_u ch, ch2; + + if (msec > 0) + /* Wait until the specified time has elapsed. */ + dwEndTime = GetTickCount() + msec; + else if (msec < 0) + /* Wait forever. */ + dwEndTime = INFINITE; + + /* We need to loop until the end of the time period, because + * we might get multiple unusable mouse events in that time. + */ + for (;;) + { +#ifdef FEAT_CLIENTSERVER + serverProcessPendingMessages(); +#endif + if (0 +#ifdef FEAT_MOUSE + || g_nMouseClick != -1 +#endif +#ifdef FEAT_CLIENTSERVER + || input_available() +#endif + ) + return TRUE; + + if (msec > 0) + { + /* If the specified wait time has passed, return. */ + dwNow = GetTickCount(); + if (dwNow >= dwEndTime) + break; + } + if (msec != 0) + { +#ifdef FEAT_CLIENTSERVER + /* Wait for either an event on the console input or a message in + * the client-server window. */ + if (MsgWaitForMultipleObjects(1, &g_hConIn, FALSE, + dwEndTime - dwNow, QS_SENDMESSAGE) != WAIT_OBJECT_0) +#else + if (WaitForSingleObject(g_hConIn, dwEndTime - dwNow) + != WAIT_OBJECT_0) +#endif + continue; + } + + cRecords = 0; + PeekConsoleInput(g_hConIn, &ir, 1, &cRecords); + +#ifdef FEAT_MBYTE_IME + if (State & CMDLINE && msg_row == Rows - 1) + { + CONSOLE_SCREEN_BUFFER_INFO csbi; + + if (GetConsoleScreenBufferInfo(g_hConOut, &csbi)) + { + if (csbi.dwCursorPosition.Y != msg_row) + { + /* The screen is now messed up, must redraw the + * command line and later all the windows. */ + redraw_all_later(CLEAR); + cmdline_row -= (msg_row - csbi.dwCursorPosition.Y); + redrawcmd(); + } + } + } +#endif + + if (cRecords > 0) + { + if (ir.EventType == KEY_EVENT && ir.Event.KeyEvent.bKeyDown) + { +#ifdef FEAT_MBYTE_IME + /* Windows IME sends two '\n's with only one 'ENTER'. First: + * wVirtualKeyCode == 13. second: wVirtualKeyCode == 0 */ + if (ir.Event.KeyEvent.uChar.UnicodeChar == 0 + && ir.Event.KeyEvent.wVirtualKeyCode == 13) + { + ReadConsoleInput(g_hConIn, &ir, 1, &cRecords); + continue; + } +#endif + if (decode_key_event(&ir.Event.KeyEvent, &ch, &ch2, + NULL, FALSE)) + return TRUE; + } + + ReadConsoleInput(g_hConIn, &ir, 1, &cRecords); + + if (ir.EventType == FOCUS_EVENT) + handle_focus_event(ir); + else if (ir.EventType == WINDOW_BUFFER_SIZE_EVENT) + shell_resized(); +#ifdef FEAT_MOUSE + else if (ir.EventType == MOUSE_EVENT + && decode_mouse_event(&ir.Event.MouseEvent)) + return TRUE; +#endif + } + else if (msec == 0) + break; + } + +#ifdef FEAT_CLIENTSERVER + /* Something might have been received while we were waiting. */ + if (input_available()) + return TRUE; +#endif + return FALSE; +} + +#ifndef FEAT_GUI_MSWIN +/* + * return non-zero if a character is available + */ + int +mch_char_avail() +{ + return WaitForChar(0L); +} +#endif + +/* + * Create the console input. Used when reading stdin doesn't work. + */ + static void +create_conin(void) +{ + g_hConIn = CreateFile("CONIN$", GENERIC_READ|GENERIC_WRITE, + FILE_SHARE_READ|FILE_SHARE_WRITE, + (LPSECURITY_ATTRIBUTES) NULL, + OPEN_EXISTING, (DWORD)NULL, (HANDLE)NULL); + did_create_conin = TRUE; +} + +/* + * Get a keystroke or a mouse event + */ + static char_u +tgetch(int *pmodifiers, char_u *pch2) +{ + char_u ch; + + for (;;) + { + INPUT_RECORD ir; + DWORD cRecords = 0; + +#ifdef FEAT_CLIENTSERVER + (void)WaitForChar(-1L); + if (input_available()) + return 0; +# ifdef FEAT_MOUSE + if (g_nMouseClick != -1) + return 0; +# endif +#endif + if (ReadConsoleInput(g_hConIn, &ir, 1, &cRecords) == 0) + { + if (did_create_conin) + read_error_exit(); + create_conin(); + continue; + } + + if (ir.EventType == KEY_EVENT) + { + if (decode_key_event(&ir.Event.KeyEvent, &ch, pch2, + pmodifiers, TRUE)) + return ch; + } + else if (ir.EventType == FOCUS_EVENT) + handle_focus_event(ir); + else if (ir.EventType == WINDOW_BUFFER_SIZE_EVENT) + shell_resized(); +#ifdef FEAT_MOUSE + else if (ir.EventType == MOUSE_EVENT) + { + if (decode_mouse_event(&ir.Event.MouseEvent)) + return 0; + } +#endif + } +} +#endif /* !FEAT_GUI_W32 */ + + +/* + * mch_inchar(): low-level input funcion. + * Get one or more characters from the keyboard or the mouse. + * If time == 0, do not wait for characters. + * If time == n, wait a short time for characters. + * If time == -1, wait forever for characters. + * Returns the number of characters read into buf. + */ + int +mch_inchar( + char_u *buf, + int maxlen, + long time, + int tb_change_cnt) +{ +#ifndef FEAT_GUI_W32 /* this isn't used for the GUI */ + + int len; + int c; +#ifdef FEAT_AUTOCMD + static int once_already = 0; +#endif +#define TYPEAHEADLEN 20 + static char_u typeahead[TYPEAHEADLEN]; /* previously typed bytes. */ + static int typeaheadlen = 0; + + /* First use any typeahead that was kept because "buf" was too small. */ + if (typeaheadlen > 0) + goto theend; + +#ifdef FEAT_SNIFF + if (want_sniff_request) + { + if (sniff_request_waiting) + { + /* return K_SNIFF */ + typeahead[typeaheadlen++] = CSI; + typeahead[typeaheadlen++] = (char_u)KS_EXTRA; + typeahead[typeaheadlen++] = (char_u)KE_SNIFF; + sniff_request_waiting = 0; + want_sniff_request = 0; + goto theend; + } + else if (time < 0 || time > 250) + { + /* don't wait too long, a request might be pending */ + time = 250; + } + } +#endif + + if (time >= 0) + { + if (!WaitForChar(time)) /* no character available */ + { +#ifdef FEAT_AUTOCMD + once_already = 0; +#endif + return 0; + } + } + else /* time == -1, wait forever */ + { + mch_set_winsize_now(); /* Allow winsize changes from now on */ + +#ifdef FEAT_AUTOCMD + /* If there is no character available within 2 seconds (default), + * write the autoscript file to disk */ + if (once_already == 2) + updatescript(0); + else if (once_already == 1) + { + setcursor(); + once_already = 2; + return 0; + } + else +#endif + if (!WaitForChar(p_ut)) + { +#ifdef FEAT_AUTOCMD + if (has_cursorhold() && get_real_state() == NORMAL_BUSY) + { + apply_autocmds(EVENT_CURSORHOLD, NULL, NULL, FALSE, curbuf); + update_screen(VALID); + once_already = 1; + return 0; + } +#endif + updatescript(0); + } + } + + /* + * Try to read as many characters as there are, until the buffer is full. + */ + + /* we will get at least one key. Get more if they are available. */ + g_fCBrkPressed = FALSE; + +#ifdef MCH_WRITE_DUMP + if (fdDump) + fputc('[', fdDump); +#endif + + /* Keep looping until there is something in the typeahead buffer and more + * to get and still room in the buffer (up to two bytes for a char and + * three bytes for a modifier). */ + while ((typeaheadlen == 0 || WaitForChar(0L)) + && typeaheadlen + 5 <= TYPEAHEADLEN) + { + if (typebuf_changed(tb_change_cnt)) + { + /* "buf" may be invalid now if a client put something in the + * typeahead buffer and "buf" is in the typeahead buffer. */ + typeaheadlen = 0; + break; + } +#ifdef FEAT_MOUSE + if (g_nMouseClick != -1) + { +# ifdef MCH_WRITE_DUMP + if (fdDump) + fprintf(fdDump, "{%02x @ %d, %d}", + g_nMouseClick, g_xMouse, g_yMouse); +# endif + typeahead[typeaheadlen++] = ESC + 128; + typeahead[typeaheadlen++] = 'M'; + typeahead[typeaheadlen++] = g_nMouseClick; + typeahead[typeaheadlen++] = g_xMouse + '!'; + typeahead[typeaheadlen++] = g_yMouse + '!'; + g_nMouseClick = -1; + } + else +#endif + { + char_u ch2 = NUL; + int modifiers = 0; + + c = tgetch(&modifiers, &ch2); + + if (typebuf_changed(tb_change_cnt)) + { + /* "buf" may be invalid now if a client put something in the + * typeahead buffer and "buf" is in the typeahead buffer. */ + typeaheadlen = 0; + break; + } + + if (c == Ctrl_C && ctrl_c_interrupts) + { +#if defined(FEAT_CLIENTSERVER) + trash_input_buf(); +#endif + got_int = TRUE; + } + +#ifdef FEAT_MOUSE + if (g_nMouseClick == -1) +#endif + { + int n = 1; + + /* A key may have one or two bytes. */ + typeahead[typeaheadlen] = c; + if (ch2 != NUL) + { + typeahead[typeaheadlen + 1] = ch2; + ++n; + } +#ifdef FEAT_MBYTE + /* Only convert normal characters, not special keys. Need to + * convert before applying ALT, otherwise mapping <M-x> breaks + * when 'tenc' is set. */ + if (input_conv.vc_type != CONV_NONE + && (ch2 == NUL || c != K_NUL)) + n = convert_input(typeahead + typeaheadlen, n, + TYPEAHEADLEN - typeaheadlen); +#endif + + /* Use the ALT key to set the 8th bit of the character + * when it's one byte, the 8th bit isn't set yet and not + * using a double-byte encoding (would become a lead + * byte). */ + if ((modifiers & MOD_MASK_ALT) + && n == 1 + && (typeahead[typeaheadlen] & 0x80) == 0 +#ifdef FEAT_MBYTE + && !enc_dbcs +#endif + ) + { + typeahead[typeaheadlen] |= 0x80; + modifiers &= ~MOD_MASK_ALT; + } + + if (modifiers != 0) + { + /* Prepend modifiers to the character. */ + mch_memmove(typeahead + typeaheadlen + 3, + typeahead + typeaheadlen, n); + typeahead[typeaheadlen++] = K_SPECIAL; + typeahead[typeaheadlen++] = (char_u)KS_MODIFIER; + typeahead[typeaheadlen++] = modifiers; + } + + typeaheadlen += n; + +#ifdef MCH_WRITE_DUMP + if (fdDump) + fputc(c, fdDump); +#endif + } + } + } + +#ifdef MCH_WRITE_DUMP + if (fdDump) + { + fputs("]\n", fdDump); + fflush(fdDump); + } +#endif + +#ifdef FEAT_AUTOCMD + once_already = 0; +#endif + +theend: + /* Move typeahead to "buf", as much as fits. */ + len = 0; + while (len < maxlen && typeaheadlen > 0) + { + buf[len++] = typeahead[0]; + mch_memmove(typeahead, typeahead + 1, --typeaheadlen); + } + return len; + +#else /* FEAT_GUI_W32 */ + return 0; +#endif /* FEAT_GUI_W32 */ +} + +#ifndef __MINGW32__ +# include <shellapi.h> /* required for FindExecutable() */ +#endif + + static int +executable_exists(char *name) +{ + char location[2 * _MAX_PATH + 2]; + char widename[2 * _MAX_PATH]; + + /* There appears to be a bug in FindExecutableA() on Windows NT. + * Use FindExecutableW() instead... */ + if (g_PlatformId == VER_PLATFORM_WIN32_NT) + { + MultiByteToWideChar(CP_ACP, 0, (LPCTSTR)name, -1, + (LPWSTR)widename, _MAX_PATH); + if (FindExecutableW((LPCWSTR)widename, (LPCWSTR)"", + (LPWSTR)location) > (HINSTANCE)32) + return TRUE; + } + else + { + if (FindExecutableA((LPCTSTR)name, (LPCTSTR)"", + (LPTSTR)location) > (HINSTANCE)32) + return TRUE; + } + return FALSE; +} + +#ifdef FEAT_GUI_W32 + +/* + * GUI version of mch_init(). + */ + void +mch_init() +{ +#ifndef __MINGW32__ + extern int _fmode; +#endif + + /* Let critical errors result in a failure, not in a dialog box. Required + * for the timestamp test to work on removed floppies. */ + SetErrorMode(SEM_FAILCRITICALERRORS); + + _fmode = O_BINARY; /* we do our own CR-LF translation */ + + /* Specify window size. Is there a place to get the default from? */ + Rows = 25; + Columns = 80; + + /* Look for 'vimrun' */ + if (!gui_is_win32s()) + { + char_u vimrun_location[_MAX_PATH + 4]; + + /* First try in same directory as gvim.exe */ + STRCPY(vimrun_location, exe_name); + STRCPY(gettail(vimrun_location), "vimrun.exe"); + if (mch_getperm(vimrun_location) >= 0) + { + if (*skiptowhite(vimrun_location) != NUL) + { + /* Enclose path with white space in double quotes. */ + mch_memmove(vimrun_location + 1, vimrun_location, + STRLEN(vimrun_location) + 1); + *vimrun_location = '"'; + STRCPY(gettail(vimrun_location), "vimrun\" "); + } + else + STRCPY(gettail(vimrun_location), "vimrun "); + + vimrun_path = (char *)vim_strsave(vimrun_location); + s_dont_use_vimrun = FALSE; + } + else if (executable_exists("vimrun.exe")) + s_dont_use_vimrun = FALSE; + + /* Don't give the warning for a missing vimrun.exe right now, but only + * when vimrun was supposed to be used. Don't bother people that do + * not need vimrun.exe. */ + if (s_dont_use_vimrun) + need_vimrun_warning = TRUE; + } + + /* + * If "finstr.exe" doesn't exist, use "grep -n" for 'grepprg'. + * Otherwise the default "findstr /n" is used. + */ + if (!executable_exists("findstr.exe")) + set_option_value((char_u *)"grepprg", 0, (char_u *)"grep -n", 0); + +#ifdef FEAT_CLIPBOARD + clip_init(TRUE); + + /* + * Vim's own clipboard format recognises whether the text is char, line, or + * rectangular block. Only useful for copying between two Vims. + * "VimClipboard" was used for previous versions, using the first + * character to specify MCHAR, MLINE or MBLOCK. + */ + clip_star.format = RegisterClipboardFormat("VimClipboard2"); + clip_star.format_raw = RegisterClipboardFormat("VimRawBytes"); +#endif +} + + +#else /* FEAT_GUI_W32 */ + +#define SRWIDTH(sr) ((sr).Right - (sr).Left + 1) +#define SRHEIGHT(sr) ((sr).Bottom - (sr).Top + 1) + +/* + * ClearConsoleBuffer() + * Description: + * Clears the entire contents of the console screen buffer, using the + * specified attribute. + * Returns: + * TRUE on success + */ + static BOOL +ClearConsoleBuffer(WORD wAttribute) +{ + CONSOLE_SCREEN_BUFFER_INFO csbi; + COORD coord; + DWORD NumCells, dummy; + + if (!GetConsoleScreenBufferInfo(g_hConOut, &csbi)) + return FALSE; + + NumCells = csbi.dwSize.X * csbi.dwSize.Y; + coord.X = 0; + coord.Y = 0; + if (!FillConsoleOutputCharacter(g_hConOut, ' ', NumCells, + coord, &dummy)) + { + return FALSE; + } + if (!FillConsoleOutputAttribute(g_hConOut, wAttribute, NumCells, + coord, &dummy)) + { + return FALSE; + } + + return TRUE; +} + +/* + * FitConsoleWindow() + * Description: + * Checks if the console window will fit within given buffer dimensions. + * Also, if requested, will shrink the window to fit. + * Returns: + * TRUE on success + */ + static BOOL +FitConsoleWindow( + COORD dwBufferSize, + BOOL WantAdjust) +{ + CONSOLE_SCREEN_BUFFER_INFO csbi; + COORD dwWindowSize; + BOOL NeedAdjust = FALSE; + + if (GetConsoleScreenBufferInfo(g_hConOut, &csbi)) + { + /* + * A buffer resize will fail if the current console window does + * not lie completely within that buffer. To avoid this, we might + * have to move and possibly shrink the window. + */ + if (csbi.srWindow.Right >= dwBufferSize.X) + { + dwWindowSize.X = SRWIDTH(csbi.srWindow); + if (dwWindowSize.X > dwBufferSize.X) + dwWindowSize.X = dwBufferSize.X; + csbi.srWindow.Right = dwBufferSize.X - 1; + csbi.srWindow.Left = dwBufferSize.X - dwWindowSize.X; + NeedAdjust = TRUE; + } + if (csbi.srWindow.Bottom >= dwBufferSize.Y) + { + dwWindowSize.Y = SRHEIGHT(csbi.srWindow); + if (dwWindowSize.Y > dwBufferSize.Y) + dwWindowSize.Y = dwBufferSize.Y; + csbi.srWindow.Bottom = dwBufferSize.Y - 1; + csbi.srWindow.Top = dwBufferSize.Y - dwWindowSize.Y; + NeedAdjust = TRUE; + } + if (NeedAdjust && WantAdjust) + { + if (!SetConsoleWindowInfo(g_hConOut, TRUE, &csbi.srWindow)) + return FALSE; + } + return TRUE; + } + + return FALSE; +} + +typedef struct ConsoleBufferStruct +{ + BOOL IsValid; + CONSOLE_SCREEN_BUFFER_INFO Info; + PCHAR_INFO Buffer; + COORD BufferSize; +} ConsoleBuffer; + +/* + * SaveConsoleBuffer() + * Description: + * Saves important information about the console buffer, including the + * actual buffer contents. The saved information is suitable for later + * restoration by RestoreConsoleBuffer(). + * Returns: + * TRUE if all information was saved; FALSE otherwise + * If FALSE, still sets cb->IsValid if buffer characteristics were saved. + */ + static BOOL +SaveConsoleBuffer( + ConsoleBuffer *cb) +{ + DWORD NumCells; + COORD BufferCoord; + SMALL_RECT ReadRegion; + WORD Y, Y_incr; + + if (cb == NULL) + return FALSE; + + if (!GetConsoleScreenBufferInfo(g_hConOut, &cb->Info)) + { + cb->IsValid = FALSE; + return FALSE; + } + cb->IsValid = TRUE; + + /* + * Allocate a buffer large enough to hold the entire console screen + * buffer. If this ConsoleBuffer structure has already been initialized + * with a buffer of the correct size, then just use that one. + */ + if (!cb->IsValid || cb->Buffer == NULL || + cb->BufferSize.X != cb->Info.dwSize.X || + cb->BufferSize.Y != cb->Info.dwSize.Y) + { + cb->BufferSize.X = cb->Info.dwSize.X; + cb->BufferSize.Y = cb->Info.dwSize.Y; + NumCells = cb->BufferSize.X * cb->BufferSize.Y; + if (cb->Buffer != NULL) + vim_free(cb->Buffer); + cb->Buffer = (PCHAR_INFO)alloc(NumCells * sizeof(CHAR_INFO)); + if (cb->Buffer == NULL) + return FALSE; + } + + /* + * We will now copy the console screen buffer into our buffer. + * ReadConsoleOutput() seems to be limited as far as how much you + * can read at a time. Empirically, this number seems to be about + * 12000 cells (rows * columns). Start at position (0, 0) and copy + * in chunks until it is all copied. The chunks will all have the + * same horizontal characteristics, so initialize them now. The + * height of each chunk will be (12000 / width). + */ + BufferCoord.X = 0; + ReadRegion.Left = 0; + ReadRegion.Right = cb->Info.dwSize.X - 1; + Y_incr = 12000 / cb->Info.dwSize.X; + for (Y = 0; Y < cb->BufferSize.Y; Y += Y_incr) + { + /* + * Read into position (0, Y) in our buffer. + */ + BufferCoord.Y = Y; + /* + * Read the region whose top left corner is (0, Y) and whose bottom + * right corner is (width - 1, Y + Y_incr - 1). This should define + * a region of size width by Y_incr. Don't worry if this region is + * too large for the remaining buffer; it will be cropped. + */ + ReadRegion.Top = Y; + ReadRegion.Bottom = Y + Y_incr - 1; + if (!ReadConsoleOutput(g_hConOut, /* output handle */ + cb->Buffer, /* our buffer */ + cb->BufferSize, /* dimensions of our buffer */ + BufferCoord, /* offset in our buffer */ + &ReadRegion)) /* region to save */ + { + vim_free(cb->Buffer); + cb->Buffer = NULL; + return FALSE; + } + } + + return TRUE; +} + +/* + * RestoreConsoleBuffer() + * Description: + * Restores important information about the console buffer, including the + * actual buffer contents, if desired. The information to restore is in + * the same format used by SaveConsoleBuffer(). + * Returns: + * TRUE on success + */ + static BOOL +RestoreConsoleBuffer( + ConsoleBuffer *cb, + BOOL RestoreScreen) +{ + COORD BufferCoord; + SMALL_RECT WriteRegion; + + if (cb == NULL || !cb->IsValid) + return FALSE; + + /* + * Before restoring the buffer contents, clear the current buffer, and + * restore the cursor position and window information. Doing this now + * prevents old buffer contents from "flashing" onto the screen. + */ + if (RestoreScreen) + ClearConsoleBuffer(cb->Info.wAttributes); + + FitConsoleWindow(cb->Info.dwSize, TRUE); + if (!SetConsoleScreenBufferSize(g_hConOut, cb->Info.dwSize)) + return FALSE; + if (!SetConsoleTextAttribute(g_hConOut, cb->Info.wAttributes)) + return FALSE; + + if (!RestoreScreen) + { + /* + * No need to restore the screen buffer contents, so we're done. + */ + return TRUE; + } + + if (!SetConsoleCursorPosition(g_hConOut, cb->Info.dwCursorPosition)) + return FALSE; + if (!SetConsoleWindowInfo(g_hConOut, TRUE, &cb->Info.srWindow)) + return FALSE; + + /* + * Restore the screen buffer contents. + */ + if (cb->Buffer != NULL) + { + BufferCoord.X = 0; + BufferCoord.Y = 0; + WriteRegion.Left = 0; + WriteRegion.Top = 0; + WriteRegion.Right = cb->Info.dwSize.X - 1; + WriteRegion.Bottom = cb->Info.dwSize.Y - 1; + if (!WriteConsoleOutput(g_hConOut, /* output handle */ + cb->Buffer, /* our buffer */ + cb->BufferSize, /* dimensions of our buffer */ + BufferCoord, /* offset in our buffer */ + &WriteRegion)) /* region to restore */ + { + return FALSE; + } + } + + return TRUE; +} + +#ifdef FEAT_RESTORE_ORIG_SCREEN +static ConsoleBuffer g_cbOrig = { 0 }; +#endif +static ConsoleBuffer g_cbNonTermcap = { 0 }; +static ConsoleBuffer g_cbTermcap = { 0 }; + +#ifdef FEAT_TITLE +#ifdef __BORLANDC__ +typedef HWND (__stdcall *GETCONSOLEWINDOWPROC)(VOID); +#else +typedef WINBASEAPI HWND (WINAPI *GETCONSOLEWINDOWPROC)(VOID); +#endif +char g_szOrigTitle[256] = { 0 }; +HWND g_hWnd = NULL; /* also used in os_mswin.c */ +static HICON g_hOrigIconSmall = NULL; +static HICON g_hOrigIcon = NULL; +static HICON g_hVimIcon = NULL; +static BOOL g_fCanChangeIcon = FALSE; + +/* ICON* are not defined in VC++ 4.0 */ +#ifndef ICON_SMALL +#define ICON_SMALL 0 +#endif +#ifndef ICON_BIG +#define ICON_BIG 1 +#endif +/* + * GetConsoleIcon() + * Description: + * Attempts to retrieve the small icon and/or the big icon currently in + * use by a given window. + * Returns: + * TRUE on success + */ + static BOOL +GetConsoleIcon( + HWND hWnd, + HICON *phIconSmall, + HICON *phIcon) +{ + if (hWnd == NULL) + return FALSE; + + if (phIconSmall != NULL) + { + *phIconSmall = (HICON) SendMessage(hWnd, WM_GETICON, + (WPARAM) ICON_SMALL, (LPARAM) 0); + } + if (phIcon != NULL) + { + *phIcon = (HICON) SendMessage(hWnd, WM_GETICON, + (WPARAM) ICON_BIG, (LPARAM) 0); + } + return TRUE; +} + +/* + * SetConsoleIcon() + * Description: + * Attempts to change the small icon and/or the big icon currently in + * use by a given window. + * Returns: + * TRUE on success + */ + static BOOL +SetConsoleIcon( + HWND hWnd, + HICON hIconSmall, + HICON hIcon) +{ + HICON hPrevIconSmall; + HICON hPrevIcon; + + if (hWnd == NULL) + return FALSE; + + if (hIconSmall != NULL) + { + hPrevIconSmall = (HICON) SendMessage(hWnd, WM_SETICON, + (WPARAM) ICON_SMALL, (LPARAM) hIconSmall); + } + if (hIcon != NULL) + { + hPrevIcon = (HICON) SendMessage(hWnd, WM_SETICON, + (WPARAM) ICON_BIG, (LPARAM) hIcon); + } + return TRUE; +} + +/* + * SaveConsoleTitleAndIcon() + * Description: + * Saves the current console window title in g_szOrigTitle, for later + * restoration. Also, attempts to obtain a handle to the console window, + * and use it to save the small and big icons currently in use by the + * console window. This is not always possible on some versions of Windows; + * nor is it possible when running Vim remotely using Telnet (since the + * console window the user sees is owned by a remote process). + */ + static void +SaveConsoleTitleAndIcon(void) +{ + GETCONSOLEWINDOWPROC GetConsoleWindowProc; + + /* Save the original title. */ + if (!GetConsoleTitle(g_szOrigTitle, sizeof(g_szOrigTitle))) + return; + + /* + * Obtain a handle to the console window using GetConsoleWindow() from + * KERNEL32.DLL; we need to handle in order to change the window icon. + * This function only exists on NT-based Windows, starting with Windows + * 2000. On older operating systems, we can't change the window icon + * anyway. + */ + if ((GetConsoleWindowProc = (GETCONSOLEWINDOWPROC) + GetProcAddress(GetModuleHandle("KERNEL32.DLL"), + "GetConsoleWindow")) != NULL) + { + g_hWnd = (*GetConsoleWindowProc)(); + } + if (g_hWnd == NULL) + return; + + /* Save the original console window icon. */ + GetConsoleIcon(g_hWnd, &g_hOrigIconSmall, &g_hOrigIcon); + if (g_hOrigIconSmall == NULL || g_hOrigIcon == NULL) + return; + + /* Extract the first icon contained in the Vim executable. */ + g_hVimIcon = ExtractIcon(NULL, exe_name, 0); + if (g_hVimIcon != NULL) + g_fCanChangeIcon = TRUE; +} +#endif + +static int g_fWindInitCalled = FALSE; +static int g_fTermcapMode = FALSE; +static CONSOLE_CURSOR_INFO g_cci; +static DWORD g_cmodein = 0; +static DWORD g_cmodeout = 0; + +/* + * non-GUI version of mch_init(). + */ + void +mch_init() +{ +#ifndef FEAT_RESTORE_ORIG_SCREEN + CONSOLE_SCREEN_BUFFER_INFO csbi; +#endif +#ifndef __MINGW32__ + extern int _fmode; +#endif + + /* Let critical errors result in a failure, not in a dialog box. Required + * for the timestamp test to work on removed floppies. */ + SetErrorMode(SEM_FAILCRITICALERRORS); + + _fmode = O_BINARY; /* we do our own CR-LF translation */ + out_flush(); + + /* Obtain handles for the standard Console I/O devices */ + if (read_cmd_fd == 0) + g_hConIn = GetStdHandle(STD_INPUT_HANDLE); + else + create_conin(); + g_hConOut = GetStdHandle(STD_OUTPUT_HANDLE); + +#ifdef FEAT_RESTORE_ORIG_SCREEN + /* Save the initial console buffer for later restoration */ + SaveConsoleBuffer(&g_cbOrig); + g_attrCurrent = g_attrDefault = g_cbOrig.Info.wAttributes; +#else + /* Get current text attributes */ + GetConsoleScreenBufferInfo(g_hConOut, &csbi); + g_attrCurrent = g_attrDefault = csbi.wAttributes; +#endif + if (cterm_normal_fg_color == 0) + cterm_normal_fg_color = (g_attrCurrent & 0xf) + 1; + if (cterm_normal_bg_color == 0) + cterm_normal_bg_color = ((g_attrCurrent >> 4) & 0xf) + 1; + + /* set termcap codes to current text attributes */ + update_tcap(g_attrCurrent); + + GetConsoleCursorInfo(g_hConOut, &g_cci); + GetConsoleMode(g_hConIn, &g_cmodein); + GetConsoleMode(g_hConOut, &g_cmodeout); + +#ifdef FEAT_TITLE + SaveConsoleTitleAndIcon(); + /* + * Set both the small and big icons of the console window to Vim's icon. + * Note that Vim presently only has one size of icon (32x32), but it + * automatically gets scaled down to 16x16 when setting the small icon. + */ + if (g_fCanChangeIcon) + SetConsoleIcon(g_hWnd, g_hVimIcon, g_hVimIcon); +#endif + + ui_get_shellsize(); + +#ifdef MCH_WRITE_DUMP + fdDump = fopen("dump", "wt"); + + if (fdDump) + { + time_t t; + + time(&t); + fputs(ctime(&t), fdDump); + fflush(fdDump); + } +#endif + + g_fWindInitCalled = TRUE; + +#ifdef FEAT_MOUSE + g_fMouseAvail = GetSystemMetrics(SM_MOUSEPRESENT); +#endif + +#ifdef FEAT_CLIPBOARD + clip_init(TRUE); + + /* + * Vim's own clipboard format recognises whether the text is char, line, or + * rectangular block. Only useful for copying between two Vims. + * "VimClipboard" was used for previous versions, using the first + * character to specify MCHAR, MLINE or MBLOCK. + */ + clip_star.format = RegisterClipboardFormat("VimClipboard2"); + clip_star.format_raw = RegisterClipboardFormat("VimRawBytes"); +#endif + + /* This will be NULL on anything but NT 4.0 */ + s_pfnGetConsoleKeyboardLayoutName = + (PFNGCKLN) GetProcAddress(GetModuleHandle("kernel32.dll"), + "GetConsoleKeyboardLayoutNameA"); +} + +/* + * non-GUI version of mch_exit(). + * Shut down and exit with status `r' + * Careful: mch_exit() may be called before mch_init()! + */ + void +mch_exit(int r) +{ + stoptermcap(); + + if (g_fWindInitCalled) + settmode(TMODE_COOK); + + ml_close_all(TRUE); /* remove all memfiles */ + + if (g_fWindInitCalled) + { +#ifdef FEAT_TITLE + mch_restore_title(3); + /* + * Restore both the small and big icons of the console window to + * what they were at startup. Don't do this when the window is + * closed, Vim would hang here. + */ + if (g_fCanChangeIcon && !g_fForceExit) + SetConsoleIcon(g_hWnd, g_hOrigIconSmall, g_hOrigIcon); +#endif + +#ifdef MCH_WRITE_DUMP + if (fdDump) + { + time_t t; + + time(&t); + fputs(ctime(&t), fdDump); + fclose(fdDump); + } + fdDump = NULL; +#endif + } + + SetConsoleCursorInfo(g_hConOut, &g_cci); + SetConsoleMode(g_hConIn, g_cmodein); + SetConsoleMode(g_hConOut, g_cmodeout); + +#ifdef DYNAMIC_GETTEXT + dyn_libintl_end(); +#endif + + exit(r); +} +#endif /* !FEAT_GUI_W32 */ + + +/* + * Do we have an interactive window? + */ + int +mch_check_win( + int argc, + char **argv) +{ + get_exe_name(); + +#ifdef FEAT_GUI_W32 + return OK; /* GUI always has a tty */ +#else + if (isatty(1)) + return OK; + return FAIL; +#endif +} + + +/* + * fname_case(): Set the case of the file name, if it already exists. + * When "len" is > 0, also expand short to long filenames. + */ + void +fname_case( + char_u *name, + int len) +{ + char szTrueName[_MAX_PATH + 2]; + char *ptrue, *ptruePrev; + char *porig, *porigPrev; + int flen; + WIN32_FIND_DATA fb; + HANDLE hFind; + int c; + + flen = (name != NULL) ? (int)STRLEN(name) : 0; + if (flen == 0 || flen > _MAX_PATH) + return; + + slash_adjust(name); + + /* Build the new name in szTrueName[] one component at a time. */ + porig = name; + ptrue = szTrueName; + + if (isalpha(porig[0]) && porig[1] == ':') + { + /* copy leading drive letter */ + *ptrue++ = *porig++; + *ptrue++ = *porig++; + *ptrue = NUL; /* in case nothing follows */ + } + + while (*porig != NUL) + { + /* copy \ characters */ + while (*porig == psepc) + *ptrue++ = *porig++; + + ptruePrev = ptrue; + porigPrev = porig; + while (*porig != NUL && *porig != psepc) + { +#ifdef FEAT_MBYTE + int l; + + if (enc_dbcs) + { + l = (*mb_ptr2len_check)(porig); + while (--l >= 0) + *ptrue++ = *porig++; + } + else +#endif + *ptrue++ = *porig++; + } + *ptrue = NUL; + + /* Skip "", "." and "..". */ + if (ptrue > ptruePrev + && (ptruePrev[0] != '.' + || (ptruePrev[1] != NUL + && (ptruePrev[1] != '.' || ptruePrev[2] != NUL))) + && (hFind = FindFirstFile(szTrueName, &fb)) + != INVALID_HANDLE_VALUE) + { + c = *porig; + *porig = NUL; + + /* Only use the match when it's the same name (ignoring case) or + * expansion is allowed and there is a match with the short name + * and there is enough room. */ + if (_stricoll(porigPrev, fb.cFileName) == 0 + || (len > 0 + && (_stricoll(porigPrev, fb.cAlternateFileName) == 0 + && (int)(ptruePrev - szTrueName) + + (int)strlen(fb.cFileName) < len))) + { + STRCPY(ptruePrev, fb.cFileName); + + /* Look for exact match and prefer it if found. Must be a + * long name, otherwise there would be only one match. */ + while (FindNextFile(hFind, &fb)) + { + if (*fb.cAlternateFileName != NUL + && (strcoll(porigPrev, fb.cFileName) == 0 + || (len > 0 + && (_stricoll(porigPrev, + fb.cAlternateFileName) == 0 + && (int)(ptruePrev - szTrueName) + + (int)strlen(fb.cFileName) < len)))) + { + STRCPY(ptruePrev, fb.cFileName); + break; + } + } + } + FindClose(hFind); + *porig = c; + ptrue = ptruePrev + strlen(ptruePrev); + } + } + + STRCPY(name, szTrueName); +} + + +/* + * Insert user name in s[len]. + */ + int +mch_get_user_name( + char_u *s, + int len) +{ + char szUserName[MAX_COMPUTERNAME_LENGTH + 1]; + DWORD cch = sizeof szUserName; + + if (GetUserName(szUserName, &cch)) + { + STRNCPY(s, szUserName, len); + return OK; + } + s[0] = NUL; + return FAIL; +} + + +/* + * Insert host name in s[len]. + */ + void +mch_get_host_name( + char_u *s, + int len) +{ + DWORD cch = len; + + if (!GetComputerName(s, &cch)) + { + STRNCPY(s, "PC (Win32 Vim)", len); + s[len - 1] = NUL; /* make sure it's terminated */ + } +} + + +/* + * return process ID + */ + long +mch_get_pid() +{ + return (long)GetCurrentProcessId(); +} + + +/* + * Get name of current directory into buffer 'buf' of length 'len' bytes. + * Return OK for success, FAIL for failure. + */ + int +mch_dirname( + char_u *buf, + int len) +{ + /* + * Originally this was: + * return (getcwd(buf, len) != NULL ? OK : FAIL); + * But the Win32s known bug list says that getcwd() doesn't work + * so use the Win32 system call instead. <Negri> + */ +#ifdef FEAT_MBYTE + if (enc_codepage >= 0 && (int)GetACP() != enc_codepage) + { + WCHAR wbuf[_MAX_PATH + 1]; + + if (GetCurrentDirectoryW(_MAX_PATH, wbuf) != 0) + { + char_u *p = ucs2_to_enc(wbuf, NULL); + + if (p != NULL) + { + STRNCPY(buf, p, len - 1); + buf[len - 1] = NUL; + vim_free(p); + return OK; + } + } + /* Retry with non-wide function (for Windows 98). */ + } +#endif + return (GetCurrentDirectory(len, buf) != 0 ? OK : FAIL); +} + +/* + * get file permissions for `name' + * -1 : error + * else FILE_ATTRIBUTE_* defined in winnt.h + */ + long +mch_getperm( + char_u *name) +{ +#ifdef FEAT_MBYTE + if (enc_codepage >= 0 && (int)GetACP() != enc_codepage) + { + WCHAR *p = enc_to_ucs2(name, NULL); + long n; + + if (p != NULL) + { + n = (long)GetFileAttributesW(p); + vim_free(p); + if (n >= 0 || GetLastError() != ERROR_CALL_NOT_IMPLEMENTED) + return n; + /* Retry with non-wide function (for Windows 98). */ + } + } +#endif + return (long)GetFileAttributes((char *)name); +} + + +/* + * set file permission for `name' to `perm' + */ + int +mch_setperm( + char_u *name, + long perm) +{ + perm |= FILE_ATTRIBUTE_ARCHIVE; /* file has changed, set archive bit */ +#ifdef FEAT_MBYTE + if (enc_codepage >= 0 && (int)GetACP() != enc_codepage) + { + WCHAR *p = enc_to_ucs2(name, NULL); + long n; + + if (p != NULL) + { + n = (long)SetFileAttributesW(p, perm); + vim_free(p); + if (n || GetLastError() != ERROR_CALL_NOT_IMPLEMENTED) + return n ? OK : FAIL; + /* Retry with non-wide function (for Windows 98). */ + } + } +#endif + return SetFileAttributes((char *)name, perm) ? OK : FAIL; +} + +/* + * Set hidden flag for "name". + */ + void +mch_hide(char_u *name) +{ + int perm; +#ifdef FEAT_MBYTE + WCHAR *p = NULL; + + if (enc_codepage >= 0 && (int)GetACP() != enc_codepage) + p = enc_to_ucs2(name, NULL); +#endif + +#ifdef FEAT_MBYTE + if (p != NULL) + { + perm = GetFileAttributesW(p); + if (perm < 0 && GetLastError() == ERROR_CALL_NOT_IMPLEMENTED) + { + /* Retry with non-wide function (for Windows 98). */ + vim_free(p); + p = NULL; + } + } + if (p == NULL) +#endif + perm = GetFileAttributes((char *)name); + if (perm >= 0) + { + perm |= FILE_ATTRIBUTE_HIDDEN; +#ifdef FEAT_MBYTE + if (p != NULL) + { + if (SetFileAttributesW(p, perm) == 0 + && GetLastError() == ERROR_CALL_NOT_IMPLEMENTED) + { + /* Retry with non-wide function (for Windows 98). */ + vim_free(p); + p = NULL; + } + } + if (p == NULL) +#endif + SetFileAttributes((char *)name, perm); + } +#ifdef FEAT_MBYTE + vim_free(p); +#endif +} + +/* + * return TRUE if "name" is a directory + * return FALSE if "name" is not a directory or upon error + */ + int +mch_isdir(char_u *name) +{ + int f = mch_getperm(name); + + if (f == -1) + return FALSE; /* file does not exist at all */ + + return (f & FILE_ATTRIBUTE_DIRECTORY) != 0; +} + +/* + * Return TRUE if file or directory "name" is writable (not readonly). + * Strange semantics of Win32: a readonly directory is writable, but you can't + * delete a file. Let's say this means it is writable. + */ + int +mch_writable(char_u *name) +{ + int perm = mch_getperm(name); + + return (perm != -1 && (!(perm & FILE_ATTRIBUTE_READONLY) + || (perm & FILE_ATTRIBUTE_DIRECTORY))); +} + +#if defined(FEAT_EVAL) || defined(PROTO) +/* + * Return 1 if "name" can be executed, 0 if not. + * Return -1 if unknown. + */ + int +mch_can_exe(char_u *name) +{ + return executable_exists((char *)name); +} +#endif + +/* + * Check what "name" is: + * NODE_NORMAL: file or directory (or doesn't exist) + * NODE_WRITABLE: writable device, socket, fifo, etc. + * NODE_OTHER: non-writable things + */ + int +mch_nodetype(char_u *name) +{ + HANDLE hFile; + int type; + + hFile = CreateFile(name, /* file name */ + GENERIC_WRITE, /* access mode */ + 0, /* share mode */ + NULL, /* security descriptor */ + OPEN_EXISTING, /* creation disposition */ + 0, /* file attributes */ + NULL); /* handle to template file */ + + if (hFile == INVALID_HANDLE_VALUE) + return NODE_NORMAL; + + type = GetFileType(hFile); + CloseHandle(hFile); + if (type == FILE_TYPE_CHAR) + return NODE_WRITABLE; + if (type == FILE_TYPE_DISK) + return NODE_NORMAL; + return NODE_OTHER; +} + +#ifdef HAVE_ACL +struct my_acl +{ + PSECURITY_DESCRIPTOR pSecurityDescriptor; + PSID pSidOwner; + PSID pSidGroup; + PACL pDacl; + PACL pSacl; +}; +#endif + +/* + * Return a pointer to the ACL of file "fname" in allocated memory. + * Return NULL if the ACL is not available for whatever reason. + */ + vim_acl_T +mch_get_acl(fname) + char_u *fname; +{ +#ifndef HAVE_ACL + return (vim_acl_T)NULL; +#else + struct my_acl *p = NULL; + + /* This only works on Windows NT and 2000. */ + if (g_PlatformId == VER_PLATFORM_WIN32_NT && advapi_lib != NULL) + { + p = (struct my_acl *)alloc_clear((unsigned)sizeof(struct my_acl)); + if (p != NULL) + { + if (pGetNamedSecurityInfo( + (LPTSTR)fname, // Abstract filename + SE_FILE_OBJECT, // File Object + // Retrieve the entire security descriptor. + OWNER_SECURITY_INFORMATION | + GROUP_SECURITY_INFORMATION | + DACL_SECURITY_INFORMATION | + SACL_SECURITY_INFORMATION, + &p->pSidOwner, // Ownership information. + &p->pSidGroup, // Group membership. + &p->pDacl, // Discretionary information. + &p->pSacl, // For auditing purposes. + &p->pSecurityDescriptor + ) != ERROR_SUCCESS) + { + mch_free_acl((vim_acl_T)p); + p = NULL; + } + } + } + + return (vim_acl_T)p; +#endif +} + +/* + * Set the ACL of file "fname" to "acl" (unless it's NULL). + * Errors are ignored. + * This must only be called with "acl" equal to what mch_get_acl() returned. + */ + void +mch_set_acl(fname, acl) + char_u *fname; + vim_acl_T acl; +{ +#ifdef HAVE_ACL + struct my_acl *p = (struct my_acl *)acl; + + if (p != NULL && advapi_lib != NULL) + (void)pSetNamedSecurityInfo( + (LPTSTR)fname, // Abstract filename + SE_FILE_OBJECT, // File Object + // Retrieve the entire security descriptor. + OWNER_SECURITY_INFORMATION | + GROUP_SECURITY_INFORMATION | + DACL_SECURITY_INFORMATION | + SACL_SECURITY_INFORMATION, + p->pSidOwner, // Ownership information. + p->pSidGroup, // Group membership. + p->pDacl, // Discretionary information. + p->pSacl // For auditing purposes. + ); +#endif +} + + void +mch_free_acl(acl) + vim_acl_T acl; +{ +#ifdef HAVE_ACL + struct my_acl *p = (struct my_acl *)acl; + + if (p != NULL) + { + LocalFree(p->pSecurityDescriptor); // Free the memory just in case + vim_free(p); + } +#endif +} + +#ifndef FEAT_GUI_W32 + +/* + * handler for ctrl-break, ctrl-c interrupts, and fatal events. + */ + static BOOL WINAPI +handler_routine( + DWORD dwCtrlType) +{ + switch (dwCtrlType) + { + case CTRL_C_EVENT: + if (ctrl_c_interrupts) + g_fCtrlCPressed = TRUE; + return TRUE; + + case CTRL_BREAK_EVENT: + g_fCBrkPressed = TRUE; + return TRUE; + + /* fatal events: shut down gracefully */ + case CTRL_CLOSE_EVENT: + case CTRL_LOGOFF_EVENT: + case CTRL_SHUTDOWN_EVENT: + windgoto((int)Rows - 1, 0); + g_fForceExit = TRUE; + + sprintf((char *)IObuff, _("Vim: Caught %s event\n"), + (dwCtrlType == CTRL_CLOSE_EVENT + ? _("close") + : dwCtrlType == CTRL_LOGOFF_EVENT + ? _("logoff") + : _("shutdown"))); +#ifdef DEBUG + OutputDebugString(IObuff); +#endif + + preserve_exit(); /* output IObuff, preserve files and exit */ + + return TRUE; /* not reached */ + + default: + return FALSE; + } +} + + +/* + * set the tty in (raw) ? "raw" : "cooked" mode + */ + void +mch_settmode( + int tmode) +{ + DWORD cmodein; + DWORD cmodeout; + BOOL bEnableHandler; + + GetConsoleMode(g_hConIn, &cmodein); + GetConsoleMode(g_hConOut, &cmodeout); + if (tmode == TMODE_RAW) + { + cmodein &= ~(ENABLE_LINE_INPUT | ENABLE_PROCESSED_INPUT | + ENABLE_ECHO_INPUT); +#ifdef FEAT_MOUSE + if (g_fMouseActive) + cmodein |= ENABLE_MOUSE_INPUT; +#endif + cmodeout &= ~(ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT); + bEnableHandler = TRUE; + } + else /* cooked */ + { + cmodein |= (ENABLE_LINE_INPUT | ENABLE_PROCESSED_INPUT | + ENABLE_ECHO_INPUT); + cmodeout |= (ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT); + bEnableHandler = FALSE; + } + SetConsoleMode(g_hConIn, cmodein); + SetConsoleMode(g_hConOut, cmodeout); + SetConsoleCtrlHandler(handler_routine, bEnableHandler); + +#ifdef MCH_WRITE_DUMP + if (fdDump) + { + fprintf(fdDump, "mch_settmode(%s, in = %x, out = %x)\n", + tmode == TMODE_RAW ? "raw" : + tmode == TMODE_COOK ? "cooked" : "normal", + cmodein, cmodeout); + fflush(fdDump); + } +#endif +} + + +/* + * Get the size of the current window in `Rows' and `Columns' + * Return OK when size could be determined, FAIL otherwise. + */ + int +mch_get_shellsize() +{ + CONSOLE_SCREEN_BUFFER_INFO csbi; + + if (!g_fTermcapMode && g_cbTermcap.IsValid) + { + /* + * For some reason, we are trying to get the screen dimensions + * even though we are not in termcap mode. The 'Rows' and 'Columns' + * variables are really intended to mean the size of Vim screen + * while in termcap mode. + */ + Rows = g_cbTermcap.Info.dwSize.Y; + Columns = g_cbTermcap.Info.dwSize.X; + } + else if (GetConsoleScreenBufferInfo(g_hConOut, &csbi)) + { + Rows = csbi.srWindow.Bottom - csbi.srWindow.Top + 1; + Columns = csbi.srWindow.Right - csbi.srWindow.Left + 1; + } + else + { + Rows = 25; + Columns = 80; + } + return OK; +} + +/* + * Set a console window to `xSize' * `ySize' + */ + static void +ResizeConBufAndWindow( + HANDLE hConsole, + int xSize, + int ySize) +{ + CONSOLE_SCREEN_BUFFER_INFO csbi; /* hold current console buffer info */ + SMALL_RECT srWindowRect; /* hold the new console size */ + COORD coordScreen; + +#ifdef MCH_WRITE_DUMP + if (fdDump) + { + fprintf(fdDump, "ResizeConBufAndWindow(%d, %d)\n", xSize, ySize); + fflush(fdDump); + } +#endif + + /* get the largest size we can size the console window to */ + coordScreen = GetLargestConsoleWindowSize(hConsole); + + /* define the new console window size and scroll position */ + srWindowRect.Left = srWindowRect.Top = (SHORT) 0; + srWindowRect.Right = (SHORT) (min(xSize, coordScreen.X) - 1); + srWindowRect.Bottom = (SHORT) (min(ySize, coordScreen.Y) - 1); + + if (GetConsoleScreenBufferInfo(g_hConOut, &csbi)) + { + int sx, sy; + + sx = csbi.srWindow.Right - csbi.srWindow.Left + 1; + sy = csbi.srWindow.Bottom - csbi.srWindow.Top + 1; + if (sy < ySize || sx < xSize) + { + /* + * Increasing number of lines/columns, do buffer first. + * Use the maximal size in x and y direction. + */ + if (sy < ySize) + coordScreen.Y = ySize; + else + coordScreen.Y = sy; + if (sx < xSize) + coordScreen.X = xSize; + else + coordScreen.X = sx; + SetConsoleScreenBufferSize(hConsole, coordScreen); + } + } + + if (!SetConsoleWindowInfo(g_hConOut, TRUE, &srWindowRect)) + { +#ifdef MCH_WRITE_DUMP + if (fdDump) + { + fprintf(fdDump, "SetConsoleWindowInfo failed: %lx\n", + GetLastError()); + fflush(fdDump); + } +#endif + } + + /* define the new console buffer size */ + coordScreen.X = xSize; + coordScreen.Y = ySize; + + if (!SetConsoleScreenBufferSize(hConsole, coordScreen)) + { +#ifdef MCH_WRITE_DUMP + if (fdDump) + { + fprintf(fdDump, "SetConsoleScreenBufferSize failed: %lx\n", + GetLastError()); + fflush(fdDump); + } +#endif + } +} + + +/* + * Set the console window to `Rows' * `Columns' + */ + void +mch_set_shellsize() +{ + COORD coordScreen; + + /* Don't change window size while still starting up */ + if (suppress_winsize != 0) + { + suppress_winsize = 2; + return; + } + + if (term_console) + { + coordScreen = GetLargestConsoleWindowSize(g_hConOut); + + /* Clamp Rows and Columns to reasonable values */ + if (Rows > coordScreen.Y) + Rows = coordScreen.Y; + if (Columns > coordScreen.X) + Columns = coordScreen.X; + + ResizeConBufAndWindow(g_hConOut, Columns, Rows); + } +} + +/* + * Rows and/or Columns has changed. + */ + void +mch_new_shellsize() +{ + set_scroll_region(0, 0, Columns - 1, Rows - 1); +} + + +/* + * Called when started up, to set the winsize that was delayed. + */ + void +mch_set_winsize_now() +{ + if (suppress_winsize == 2) + { + suppress_winsize = 0; + mch_set_shellsize(); + shell_resized(); + } + suppress_winsize = 0; +} +#endif /* FEAT_GUI_W32 */ + + + +#if defined(FEAT_GUI_W32) || defined(PROTO) + +/* + * Specialised version of system() for Win32 GUI mode. + * This version proceeds as follows: + * 1. Create a console window for use by the subprocess + * 2. Run the subprocess (it gets the allocated console by default) + * 3. Wait for the subprocess to terminate and get its exit code + * 4. Prompt the user to press a key to close the console window + */ + static int +mch_system(char *cmd, int options) +{ + STARTUPINFO si; + PROCESS_INFORMATION pi; + DWORD ret = 0; + HWND hwnd = GetFocus(); + + si.cb = sizeof(si); + si.lpReserved = NULL; + si.lpDesktop = NULL; + si.lpTitle = NULL; + si.dwFlags = STARTF_USESHOWWINDOW; + /* + * It's nicer to run a filter command in a minimized window, but in + * Windows 95 this makes the command MUCH slower. We can't do it under + * Win32s either as it stops the synchronous spawn workaround working. + */ + if ((options & SHELL_DOOUT) && !mch_windows95() && !gui_is_win32s()) + si.wShowWindow = SW_SHOWMINIMIZED; + else + si.wShowWindow = SW_SHOWNORMAL; + si.cbReserved2 = 0; + si.lpReserved2 = NULL; + + /* There is a strange error on Windows 95 when using "c:\\command.com". + * When the "c:\\" is left out it works OK...? */ + if (mch_windows95() + && (STRNICMP(cmd, "c:/command.com", 14) == 0 + || STRNICMP(cmd, "c:\\command.com", 14) == 0)) + cmd += 3; + + /* Now, run the command */ + CreateProcess(NULL, /* Executable name */ + cmd, /* Command to execute */ + NULL, /* Process security attributes */ + NULL, /* Thread security attributes */ + FALSE, /* Inherit handles */ + CREATE_DEFAULT_ERROR_MODE | /* Creation flags */ + CREATE_NEW_CONSOLE, + NULL, /* Environment */ + NULL, /* Current directory */ + &si, /* Startup information */ + &pi); /* Process information */ + + + /* Wait for the command to terminate before continuing */ + if (g_PlatformId != VER_PLATFORM_WIN32s) + { +#ifdef FEAT_GUI + int delay = 1; + + /* Keep updating the window while waiting for the shell to finish. */ + for (;;) + { + MSG msg; + + if (PeekMessage(&msg, (HWND)NULL, 0, 0, PM_REMOVE)) + { + TranslateMessage(&msg); + DispatchMessage(&msg); + } + if (WaitForSingleObject(pi.hProcess, delay) != WAIT_TIMEOUT) + break; + + /* We start waiting for a very short time and then increase it, so + * that we respond quickly when the process is quick, and don't + * consume too much overhead when it's slow. */ + if (delay < 50) + delay += 10; + } +#else + WaitForSingleObject(pi.hProcess, INFINITE); +#endif + + /* Get the command exit code */ + GetExitCodeProcess(pi.hProcess, &ret); + } + else + { + /* + * This ugly code is the only quick way of performing + * a synchronous spawn under Win32s. Yuk. + */ + num_windows = 0; + EnumWindows(win32ssynch_cb, 0); + old_num_windows = num_windows; + do + { + Sleep(1000); + num_windows = 0; + EnumWindows(win32ssynch_cb, 0); + } while (num_windows == old_num_windows); + ret = 0; + } + + /* Close the handles to the subprocess, so that it goes away */ + CloseHandle(pi.hThread); + CloseHandle(pi.hProcess); + + /* Try to get input focus back. Doesn't always work though. */ + PostMessage(hwnd, WM_SETFOCUS, 0, 0); + + return ret; +} +#else + +# define mch_system(c, o) system(c) + +#endif + +/* + * Either execute a command by calling the shell or start a new shell + */ + int +mch_call_shell( + char_u *cmd, + int options) /* SHELL_*, see vim.h */ +{ + int x = 0; + int tmode = cur_tmode; +#ifdef FEAT_TITLE + char szShellTitle[512]; + + /* Change the title to reflect that we are in a subshell. */ + if (GetConsoleTitle(szShellTitle, sizeof(szShellTitle) - 4) > 0) + { + if (cmd == NULL) + strcat(szShellTitle, " :sh"); + else + { + strcat(szShellTitle, " - !"); + if ((strlen(szShellTitle) + strlen(cmd) < sizeof(szShellTitle))) + strcat(szShellTitle, cmd); + } + mch_settitle(szShellTitle, NULL); + } +#endif + + out_flush(); + +#ifdef MCH_WRITE_DUMP + if (fdDump) + { + fprintf(fdDump, "mch_call_shell(\"%s\", %d)\n", cmd, options); + fflush(fdDump); + } +#endif + + /* + * Catch all deadly signals while running the external command, because a + * CTRL-C, Ctrl-Break or illegal instruction might otherwise kill us. + */ + signal(SIGINT, SIG_IGN); +#if defined(__GNUC__) && !defined(__MINGW32__) + signal(SIGKILL, SIG_IGN); +#else + signal(SIGBREAK, SIG_IGN); +#endif + signal(SIGILL, SIG_IGN); + signal(SIGFPE, SIG_IGN); + signal(SIGSEGV, SIG_IGN); + signal(SIGTERM, SIG_IGN); + signal(SIGABRT, SIG_IGN); + + if (options & SHELL_COOKED) + settmode(TMODE_COOK); /* set to normal mode */ + + if (cmd == NULL) + { + x = mch_system(p_sh, options); + } + else + { + /* we use "command" or "cmd" to start the shell; slow but easy */ + char_u *newcmd; + + newcmd = lalloc((long_u) ( +#ifdef FEAT_GUI_W32 + STRLEN(vimrun_path) + +#endif + STRLEN(p_sh) + STRLEN(p_shcf) + STRLEN(cmd) + 10), TRUE); + if (newcmd != NULL) + { + char_u *cmdbase = (*cmd == '"' ? cmd + 1 : cmd); + + if ((STRNICMP(cmdbase, "start", 5) == 0) && vim_iswhite(cmdbase[5])) + { + STARTUPINFO si; + PROCESS_INFORMATION pi; + + si.cb = sizeof(si); + si.lpReserved = NULL; + si.lpDesktop = NULL; + si.lpTitle = NULL; + si.dwFlags = 0; + si.cbReserved2 = 0; + si.lpReserved2 = NULL; + + cmdbase = skipwhite(cmdbase + 5); + if ((STRNICMP(cmdbase, "/min", 4) == 0) + && vim_iswhite(cmdbase[4])) + { + cmdbase = skipwhite(cmdbase + 4); + si.dwFlags = STARTF_USESHOWWINDOW; + si.wShowWindow = SW_SHOWMINNOACTIVE; + } + + /* When the command is in double quotes, but 'shellxquote' is + * empty, keep the double quotes around the command. + * Otherwise remove the double quotes, they aren't needed + * here, because we don't use a shell to run the command. */ + if (*cmd == '"' && *p_sxq == NUL) + { + newcmd[0] = '"'; + STRCPY(newcmd + 1, cmdbase); + } + else + { + STRCPY(newcmd, cmdbase); + if (*cmd == '"' && *newcmd != NUL) + newcmd[STRLEN(newcmd) - 1] = NUL; + } + + /* + * Now, start the command as a process, so that it doesn't + * inherit our handles which causes unpleasant dangling swap + * files if we exit before the spawned process + */ + if (CreateProcess (NULL, // Executable name + newcmd, // Command to execute + NULL, // Process security attributes + NULL, // Thread security attributes + FALSE, // Inherit handles + CREATE_NEW_CONSOLE, // Creation flags + NULL, // Environment + NULL, // Current directory + &si, // Startup information + &pi)) // Process information + x = 0; + else + { + x = -1; +#ifdef FEAT_GUI_W32 + EMSG(_("E371: Command not found")); +#endif + } + /* Close the handles to the subprocess, so that it goes away */ + CloseHandle(pi.hThread); + CloseHandle(pi.hProcess); + } + else + { +#if defined(FEAT_GUI_W32) + if (need_vimrun_warning) + { + MessageBox(NULL, + _("VIMRUN.EXE not found in your $PATH.\n" + "External commands will not pause after completion.\n" + "See :help win32-vimrun for more information."), + _("Vim Warning"), + MB_ICONWARNING); + need_vimrun_warning = FALSE; + } + if (!s_dont_use_vimrun) + /* Use vimrun to execute the command. It opens a console + * window, which can be closed without killing Vim. */ + sprintf((char *)newcmd, "%s%s%s %s %s", + vimrun_path, + (msg_silent != 0 || (options & SHELL_DOOUT)) + ? "-s " : "", + p_sh, p_shcf, cmd); + else +#endif + sprintf((char *)newcmd, "%s %s %s", p_sh, p_shcf, cmd); + x = mch_system((char *)newcmd, options); + } + vim_free(newcmd); + } + } + + if (tmode == TMODE_RAW) + settmode(TMODE_RAW); /* set to raw mode */ + + /* Print the return value, unless "vimrun" was used. */ + if (x != 0 && !(options & SHELL_SILENT) && !emsg_silent +#if defined(FEAT_GUI_W32) + && ((options & SHELL_DOOUT) || s_dont_use_vimrun) +#endif + ) + { + smsg(_("shell returned %d"), x); + msg_putchar('\n'); + } +#ifdef FEAT_TITLE + resettitle(); +#endif + + signal(SIGINT, SIG_DFL); +#if defined(__GNUC__) && !defined(__MINGW32__) + signal(SIGKILL, SIG_DFL); +#else + signal(SIGBREAK, SIG_DFL); +#endif + signal(SIGILL, SIG_DFL); + signal(SIGFPE, SIG_DFL); + signal(SIGSEGV, SIG_DFL); + signal(SIGTERM, SIG_DFL); + signal(SIGABRT, SIG_DFL); + + return x; +} + + +#ifndef FEAT_GUI_W32 + +/* + * Start termcap mode + */ + static void +termcap_mode_start(void) +{ + DWORD cmodein; + + if (g_fTermcapMode) + return; + + SaveConsoleBuffer(&g_cbNonTermcap); + + if (g_cbTermcap.IsValid) + { + /* + * We've been in termcap mode before. Restore certain screen + * characteristics, including the buffer size and the window + * size. Since we will be redrawing the screen, we don't need + * to restore the actual contents of the buffer. + */ + RestoreConsoleBuffer(&g_cbTermcap, FALSE); + SetConsoleWindowInfo(g_hConOut, TRUE, &g_cbTermcap.Info.srWindow); + Rows = g_cbTermcap.Info.dwSize.Y; + Columns = g_cbTermcap.Info.dwSize.X; + } + else + { + /* + * This is our first time entering termcap mode. Clear the console + * screen buffer, and resize the buffer to match the current window + * size. We will use this as the size of our editing environment. + */ + ClearConsoleBuffer(g_attrCurrent); + ResizeConBufAndWindow(g_hConOut, Columns, Rows); + } + +#ifdef FEAT_TITLE + resettitle(); +#endif + + GetConsoleMode(g_hConIn, &cmodein); +#ifdef FEAT_MOUSE + if (g_fMouseActive) + cmodein |= ENABLE_MOUSE_INPUT; + else + cmodein &= ~ENABLE_MOUSE_INPUT; +#endif + cmodein |= ENABLE_WINDOW_INPUT; + SetConsoleMode(g_hConIn, cmodein); + + redraw_later_clear(); + g_fTermcapMode = TRUE; +} + + +/* + * End termcap mode + */ + static void +termcap_mode_end(void) +{ + DWORD cmodein; + ConsoleBuffer *cb; + COORD coord; + DWORD dwDummy; + + if (!g_fTermcapMode) + return; + + SaveConsoleBuffer(&g_cbTermcap); + + GetConsoleMode(g_hConIn, &cmodein); + cmodein &= ~(ENABLE_MOUSE_INPUT | ENABLE_WINDOW_INPUT); + SetConsoleMode(g_hConIn, cmodein); + +#ifdef FEAT_RESTORE_ORIG_SCREEN + cb = exiting ? &g_cbOrig : &g_cbNonTermcap; +#else + cb = &g_cbNonTermcap; +#endif + RestoreConsoleBuffer(cb, p_rs); + SetConsoleCursorInfo(g_hConOut, &g_cci); + + if (p_rs || exiting) + { + /* + * Clear anything that happens to be on the current line. + */ + coord.X = 0; + coord.Y = (SHORT) (p_rs ? cb->Info.dwCursorPosition.Y : (Rows - 1)); + FillConsoleOutputCharacter(g_hConOut, ' ', + cb->Info.dwSize.X, coord, &dwDummy); + /* + * The following is just for aesthetics. If we are exiting without + * restoring the screen, then we want to have a prompt string + * appear at the bottom line. However, the command interpreter + * seems to always advance the cursor one line before displaying + * the prompt string, which causes the screen to scroll. To + * counter this, move the cursor up one line before exiting. + */ + if (exiting && !p_rs) + coord.Y--; + /* + * Position the cursor at the leftmost column of the desired row. + */ + SetConsoleCursorPosition(g_hConOut, coord); + } + + g_fTermcapMode = FALSE; +} +#endif /* FEAT_GUI_W32 */ + + +#ifdef FEAT_GUI_W32 + void +mch_write( + char_u *s, + int len) +{ + /* never used */ +} + +#else + +/* + * clear `n' chars, starting from `coord' + */ + static void +clear_chars( + COORD coord, + DWORD n) +{ + DWORD dwDummy; + + FillConsoleOutputCharacter(g_hConOut, ' ', n, coord, &dwDummy); + FillConsoleOutputAttribute(g_hConOut, g_attrCurrent, n, coord, &dwDummy); +} + + +/* + * Clear the screen + */ + static void +clear_screen(void) +{ + g_coord.X = g_coord.Y = 0; + clear_chars(g_coord, Rows * Columns); +} + + +/* + * Clear to end of display + */ + static void +clear_to_end_of_display(void) +{ + clear_chars(g_coord, (Rows - g_coord.Y - 1) + * Columns + (Columns - g_coord.X)); +} + + +/* + * Clear to end of line + */ + static void +clear_to_end_of_line(void) +{ + clear_chars(g_coord, Columns - g_coord.X); +} + + +/* + * Scroll the scroll region up by `cLines' lines + */ + static void +scroll( + unsigned cLines) +{ + COORD oldcoord = g_coord; + + gotoxy(g_srScrollRegion.Left + 1, g_srScrollRegion.Top + 1); + delete_lines(cLines); + + g_coord = oldcoord; +} + + +/* + * Set the scroll region + */ + static void +set_scroll_region( + unsigned left, + unsigned top, + unsigned right, + unsigned bottom) +{ + if (left >= right + || top >= bottom + || right > (unsigned) Columns - 1 + || bottom > (unsigned) Rows - 1) + return; + + g_srScrollRegion.Left = left; + g_srScrollRegion.Top = top; + g_srScrollRegion.Right = right; + g_srScrollRegion.Bottom = bottom; +} + + +/* + * Insert `cLines' lines at the current cursor position + */ + static void +insert_lines( + unsigned cLines) +{ + SMALL_RECT source; + COORD dest; + CHAR_INFO fill; + + dest.X = 0; + dest.Y = g_coord.Y + cLines; + + source.Left = 0; + source.Top = g_coord.Y; + source.Right = g_srScrollRegion.Right; + source.Bottom = g_srScrollRegion.Bottom - cLines; + + fill.Char.AsciiChar = ' '; + fill.Attributes = g_attrCurrent; + + ScrollConsoleScreenBuffer(g_hConOut, &source, NULL, dest, &fill); + + /* Here we have to deal with a win32 console flake: If the scroll + * region looks like abc and we scroll c to a and fill with d we get + * cbd... if we scroll block c one line at a time to a, we get cdd... + * vim expects cdd consistently... So we have to deal with that + * here... (this also occurs scrolling the same way in the other + * direction). */ + + if (source.Bottom < dest.Y) + { + COORD coord; + + coord.X = 0; + coord.Y = source.Bottom; + clear_chars(coord, Columns * (dest.Y - source.Bottom)); + } +} + + +/* + * Delete `cLines' lines at the current cursor position + */ + static void +delete_lines( + unsigned cLines) +{ + SMALL_RECT source; + COORD dest; + CHAR_INFO fill; + int nb; + + dest.X = 0; + dest.Y = g_coord.Y; + + source.Left = 0; + source.Top = g_coord.Y + cLines; + source.Right = g_srScrollRegion.Right; + source.Bottom = g_srScrollRegion.Bottom; + + fill.Char.AsciiChar = ' '; + fill.Attributes = g_attrCurrent; + + ScrollConsoleScreenBuffer(g_hConOut, &source, NULL, dest, &fill); + + /* Here we have to deal with a win32 console flake: If the scroll + * region looks like abc and we scroll c to a and fill with d we get + * cbd... if we scroll block c one line at a time to a, we get cdd... + * vim expects cdd consistently... So we have to deal with that + * here... (this also occurs scrolling the same way in the other + * direction). */ + + nb = dest.Y + (source.Bottom - source.Top) + 1; + + if (nb < source.Top) + { + COORD coord; + + coord.X = 0; + coord.Y = nb; + clear_chars(coord, Columns * (source.Top - nb)); + } +} + + +/* + * Set the cursor position + */ + static void +gotoxy( + unsigned x, + unsigned y) +{ + if (x < 1 || x > (unsigned)Columns || y < 1 || y > (unsigned)Rows) + return; + + /* external cursor coords are 1-based; internal are 0-based */ + g_coord.X = x - 1; + g_coord.Y = y - 1; + SetConsoleCursorPosition(g_hConOut, g_coord); +} + + +/* + * Set the current text attribute = (foreground | background) + * See ../doc/os_win32.txt for the numbers. + */ + static void +textattr( + WORD wAttr) +{ + g_attrCurrent = wAttr; + + SetConsoleTextAttribute(g_hConOut, wAttr); +} + + + static void +textcolor( + WORD wAttr) +{ + g_attrCurrent = (g_attrCurrent & 0xf0) + wAttr; + + SetConsoleTextAttribute(g_hConOut, g_attrCurrent); +} + + + static void +textbackground( + WORD wAttr) +{ + g_attrCurrent = (g_attrCurrent & 0x0f) + (wAttr << 4); + + SetConsoleTextAttribute(g_hConOut, g_attrCurrent); +} + + +/* + * restore the default text attribute (whatever we started with) + */ + static void +normvideo() +{ + textattr(g_attrDefault); +} + + +static WORD g_attrPreStandout = 0; + +/* + * Make the text standout, by brightening it + */ + static void +standout(void) +{ + g_attrPreStandout = g_attrCurrent; + textattr((WORD) (g_attrCurrent|FOREGROUND_INTENSITY|BACKGROUND_INTENSITY)); +} + + +/* + * Turn off standout mode + */ + static void +standend() +{ + if (g_attrPreStandout) + { + textattr(g_attrPreStandout); + g_attrPreStandout = 0; + } +} + + +/* + * Set normal fg/bg color, based on T_ME. Called whem t_me has been set. + */ + void +mch_set_normal_colors() +{ + char_u *p; + int n; + + cterm_normal_fg_color = (g_attrDefault & 0xf) + 1; + cterm_normal_bg_color = ((g_attrDefault >> 4) & 0xf) + 1; + if (T_ME[0] == ESC && T_ME[1] == '|') + { + p = T_ME + 2; + n = getdigits(&p); + if (*p == 'm' && n > 0) + { + cterm_normal_fg_color = (n & 0xf) + 1; + cterm_normal_bg_color = ((n >> 4) & 0xf) + 1; + } + } +} + + +/* + * visual bell: flash the screen + */ + static void +visual_bell() +{ + COORD coordOrigin = {0, 0}; + WORD attrFlash = ~g_attrCurrent & 0xff; + + DWORD dwDummy; + LPWORD oldattrs = (LPWORD)alloc(Rows * Columns * sizeof(WORD)); + + if (oldattrs == NULL) + return; + ReadConsoleOutputAttribute(g_hConOut, oldattrs, Rows * Columns, + coordOrigin, &dwDummy); + FillConsoleOutputAttribute(g_hConOut, attrFlash, Rows * Columns, + coordOrigin, &dwDummy); + + Sleep(15); /* wait for 15 msec */ + WriteConsoleOutputAttribute(g_hConOut, oldattrs, Rows * Columns, + coordOrigin, &dwDummy); + vim_free(oldattrs); +} + + +/* + * Make the cursor visible or invisible + */ + static void +cursor_visible( + BOOL fVisible) +{ + s_cursor_visible = fVisible; +#ifdef MCH_CURSOR_SHAPE + mch_update_cursor(); +#endif +} + + +/* + * write `cchToWrite' characters in `pchBuf' to the screen + * Returns the number of characters actually written (at least one). + */ + static BOOL +write_chars( + LPCSTR pchBuf, + DWORD cchToWrite) +{ + COORD coord = g_coord; + DWORD written; + + FillConsoleOutputAttribute(g_hConOut, g_attrCurrent, cchToWrite, + coord, &written); + /* When writing fails or didn't write a single character, pretend one + * character was written, otherwise we get stuck. */ + if (WriteConsoleOutputCharacter(g_hConOut, pchBuf, cchToWrite, + coord, &written) == 0 + || written == 0) + written = 1; + + g_coord.X += (SHORT) written; + + while (g_coord.X > g_srScrollRegion.Right) + { + g_coord.X -= (SHORT) Columns; + if (g_coord.Y < g_srScrollRegion.Bottom) + g_coord.Y++; + } + + gotoxy(g_coord.X + 1, g_coord.Y + 1); + + return written; +} + + +/* + * mch_write(): write the output buffer to the screen, translating ESC + * sequences into calls to console output routines. + */ + void +mch_write( + char_u *s, + int len) +{ + s[len] = NUL; + + if (!term_console) + { + write(1, s, (unsigned)len); + return; + } + + /* translate ESC | sequences into faked bios calls */ + while (len--) + { + /* optimization: use one single write_chars for runs of text, + * rather than once per character It ain't curses, but it helps. */ + DWORD prefix = strcspn(s, "\n\r\b\a\033"); + + if (p_wd) + { + WaitForChar(p_wd); + if (prefix != 0) + prefix = 1; + } + + if (prefix != 0) + { + DWORD nWritten; + + nWritten = write_chars(s, prefix); +#ifdef MCH_WRITE_DUMP + if (fdDump) + { + fputc('>', fdDump); + fwrite(s, sizeof(char_u), nWritten, fdDump); + fputs("<\n", fdDump); + } +#endif + len -= (nWritten - 1); + s += nWritten; + } + else if (s[0] == '\n') + { + /* \n, newline: go to the beginning of the next line or scroll */ + if (g_coord.Y == g_srScrollRegion.Bottom) + { + scroll(1); + gotoxy(g_srScrollRegion.Left + 1, g_srScrollRegion.Bottom + 1); + } + else + { + gotoxy(g_srScrollRegion.Left + 1, g_coord.Y + 2); + } +#ifdef MCH_WRITE_DUMP + if (fdDump) + fputs("\\n\n", fdDump); +#endif + s++; + } + else if (s[0] == '\r') + { + /* \r, carriage return: go to beginning of line */ + gotoxy(g_srScrollRegion.Left+1, g_coord.Y + 1); +#ifdef MCH_WRITE_DUMP + if (fdDump) + fputs("\\r\n", fdDump); +#endif + s++; + } + else if (s[0] == '\b') + { + /* \b, backspace: move cursor one position left */ + if (g_coord.X > g_srScrollRegion.Left) + g_coord.X--; + else if (g_coord.Y > g_srScrollRegion.Top) + { + g_coord.X = g_srScrollRegion.Right; + g_coord.Y--; + } + gotoxy(g_coord.X + 1, g_coord.Y + 1); +#ifdef MCH_WRITE_DUMP + if (fdDump) + fputs("\\b\n", fdDump); +#endif + s++; + } + else if (s[0] == '\a') + { + /* \a, bell */ + MessageBeep(0xFFFFFFFF); +#ifdef MCH_WRITE_DUMP + if (fdDump) + fputs("\\a\n", fdDump); +#endif + s++; + } + else if (s[0] == ESC && len >= 3-1 && s[1] == '|') + { +#ifdef MCH_WRITE_DUMP + char_u* old_s = s; +#endif + char_u* p; + int arg1 = 0, arg2 = 0; + + switch (s[2]) + { + /* one or two numeric arguments, separated by ';' */ + + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + p = s + 2; + arg1 = getdigits(&p); /* no check for length! */ + if (p > s + len) + break; + + if (*p == ';') + { + ++p; + arg2 = getdigits(&p); /* no check for length! */ + if (p > s + len) + break; + + if (*p == 'H') + gotoxy(arg2, arg1); + else if (*p == 'r') + set_scroll_region(0, arg1 - 1, Columns - 1, arg2 - 1); + } + else if (*p == 'A') + { + /* move cursor up arg1 lines in same column */ + gotoxy(g_coord.X + 1, + max(g_srScrollRegion.Top, g_coord.Y - arg1) + 1); + } + else if (*p == 'C') + { + /* move cursor right arg1 columns in same line */ + gotoxy(min(g_srScrollRegion.Right, g_coord.X + arg1) + 1, + g_coord.Y + 1); + } + else if (*p == 'H') + { + gotoxy(1, arg1); + } + else if (*p == 'L') + { + insert_lines(arg1); + } + else if (*p == 'm') + { + if (arg1 == 0) + normvideo(); + else + textattr((WORD) arg1); + } + else if (*p == 'f') + { + textcolor((WORD) arg1); + } + else if (*p == 'b') + { + textbackground((WORD) arg1); + } + else if (*p == 'M') + { + delete_lines(arg1); + } + + len -= p - s; + s = p + 1; + break; + + + /* Three-character escape sequences */ + + case 'A': + /* move cursor up one line in same column */ + gotoxy(g_coord.X + 1, + max(g_srScrollRegion.Top, g_coord.Y - 1) + 1); + goto got3; + + case 'B': + visual_bell(); + goto got3; + + case 'C': + /* move cursor right one column in same line */ + gotoxy(min(g_srScrollRegion.Right, g_coord.X + 1) + 1, + g_coord.Y + 1); + goto got3; + + case 'E': + termcap_mode_end(); + goto got3; + + case 'F': + standout(); + goto got3; + + case 'f': + standend(); + goto got3; + + case 'H': + gotoxy(1, 1); + goto got3; + + case 'j': + clear_to_end_of_display(); + goto got3; + + case 'J': + clear_screen(); + goto got3; + + case 'K': + clear_to_end_of_line(); + goto got3; + + case 'L': + insert_lines(1); + goto got3; + + case 'M': + delete_lines(1); + goto got3; + + case 'S': + termcap_mode_start(); + goto got3; + + case 'V': + cursor_visible(TRUE); + goto got3; + + case 'v': + cursor_visible(FALSE); + goto got3; + + got3: + s += 3; + len -= 2; + } + +#ifdef MCH_WRITE_DUMP + if (fdDump) + { + fputs("ESC | ", fdDump); + fwrite(old_s + 2, sizeof(char_u), s - old_s - 2, fdDump); + fputc('\n', fdDump); + } +#endif + } + else + { + /* Write a single character */ + DWORD nWritten; + + nWritten = write_chars(s, 1); +#ifdef MCH_WRITE_DUMP + if (fdDump) + { + fputc('>', fdDump); + fwrite(s, sizeof(char_u), nWritten, fdDump); + fputs("<\n", fdDump); + } +#endif + + len -= (nWritten - 1); + s += nWritten; + } + } + +#ifdef MCH_WRITE_DUMP + if (fdDump) + fflush(fdDump); +#endif +} + +#endif /* FEAT_GUI_W32 */ + + +/* + * Delay for half a second. + */ + void +mch_delay( + long msec, + int ignoreinput) +{ +#ifdef FEAT_GUI_W32 + Sleep((int)msec); /* never wait for input */ +#else + if (ignoreinput) + Sleep((int)msec); + else + WaitForChar(msec); +#endif +} + + +/* + * this version of remove is not scared by a readonly (backup) file + * Return 0 for success, -1 for failure. + */ + int +mch_remove(char_u *name) +{ +#ifdef FEAT_MBYTE + WCHAR *wn = NULL; + int n; + + if (enc_codepage >= 0 && (int)GetACP() != enc_codepage) + { + wn = enc_to_ucs2(name, NULL); + if (wn != NULL) + { + SetFileAttributesW(wn, FILE_ATTRIBUTE_NORMAL); + n = DeleteFileW(wn) ? 0 : -1; + vim_free(wn); + if (n == 0 || GetLastError() != ERROR_CALL_NOT_IMPLEMENTED) + return n; + /* Retry with non-wide function (for Windows 98). */ + } + } +#endif + SetFileAttributes(name, FILE_ATTRIBUTE_NORMAL); + return DeleteFile(name) ? 0 : -1; +} + + +/* + * check for an "interrupt signal": CTRL-break or CTRL-C + */ + void +mch_breakcheck() +{ +#ifndef FEAT_GUI_W32 /* never used */ + if (g_fCtrlCPressed || g_fCBrkPressed) + { + g_fCtrlCPressed = g_fCBrkPressed = FALSE; + got_int = TRUE; + } +#endif +} + + +/* + * How much memory is available? + * Return sum of available physical and page file memory. + */ + long_u +mch_avail_mem( + int special) +{ + MEMORYSTATUS ms; + + ms.dwLength = sizeof(MEMORYSTATUS); + GlobalMemoryStatus(&ms); + return (long_u) (ms.dwAvailPhys + ms.dwAvailPageFile); +} + +#ifdef FEAT_MBYTE +/* + * Same code as below, but with wide functions and no comments. + * Return 0 for success, non-zero for failure. + */ + int +mch_wrename(WCHAR *wold, WCHAR *wnew) +{ + WCHAR *p; + int i; + WCHAR szTempFile[_MAX_PATH + 1]; + WCHAR szNewPath[_MAX_PATH + 1]; + HANDLE hf; + + if (!mch_windows95()) + { + p = wold; + for (i = 0; wold[i] != NUL; ++i) + if ((wold[i] == '/' || wold[i] == '\\' || wold[i] == ':') + && wold[i + 1] != 0) + p = wold + i + 1; + if ((int)(wold + i - p) < 8 || p[6] != '~') + return (MoveFileW(wold, wnew) == 0); + } + + if (GetFullPathNameW(wnew, _MAX_PATH, szNewPath, &p) == 0 || p == NULL) + return -1; + *p = NUL; + + if (GetTempFileNameW(szNewPath, L"VIM", 0, szTempFile) == 0) + return -2; + + if (!DeleteFileW(szTempFile)) + return -3; + + if (!MoveFileW(wold, szTempFile)) + return -4; + + if ((hf = CreateFileW(wold, GENERIC_WRITE, 0, NULL, CREATE_NEW, + FILE_ATTRIBUTE_NORMAL, NULL)) == INVALID_HANDLE_VALUE) + return -5; + if (!CloseHandle(hf)) + return -6; + + if (!MoveFileW(szTempFile, wnew)) + { + (void)MoveFileW(szTempFile, wold); + return -7; + } + + DeleteFileW(szTempFile); + + if (!DeleteFileW(wold)) + return -8; + + return 0; +} +#endif + + +/* + * mch_rename() works around a bug in rename (aka MoveFile) in + * Windows 95: rename("foo.bar", "foo.bar~") will generate a + * file whose short file name is "FOO.BAR" (its long file name will + * be correct: "foo.bar~"). Because a file can be accessed by + * either its SFN or its LFN, "foo.bar" has effectively been + * renamed to "foo.bar", which is not at all what was wanted. This + * seems to happen only when renaming files with three-character + * extensions by appending a suffix that does not include ".". + * Windows NT gets it right, however, with an SFN of "FOO~1.BAR". + * + * There is another problem, which isn't really a bug but isn't right either: + * When renaming "abcdef~1.txt" to "abcdef~1.txt~", the short name can be + * "abcdef~1.txt" again. This has been reported on Windows NT 4.0 with + * service pack 6. Doesn't seem to happen on Windows 98. + * + * Like rename(), returns 0 upon success, non-zero upon failure. + * Should probably set errno appropriately when errors occur. + */ + int +mch_rename( + const char *pszOldFile, + const char *pszNewFile) +{ + char szTempFile[_MAX_PATH+1]; + char szNewPath[_MAX_PATH+1]; + char *pszFilePart; + HANDLE hf; +#ifdef FEAT_MBYTE + WCHAR *wold = NULL; + WCHAR *wnew = NULL; + int retval = -1; + + if (enc_codepage >= 0 && (int)GetACP() != enc_codepage) + { + wold = enc_to_ucs2((char_u *)pszOldFile, NULL); + wnew = enc_to_ucs2((char_u *)pszNewFile, NULL); + if (wold != NULL && wnew != NULL) + retval = mch_wrename(wold, wnew); + vim_free(wold); + vim_free(wnew); + if (retval == 0 || GetLastError() != ERROR_CALL_NOT_IMPLEMENTED) + return retval; + /* Retry with non-wide function (for Windows 98). */ + } +#endif + + /* + * No need to play tricks if not running Windows 95, unless the file name + * contains a "~" as the seventh character. + */ + if (!mch_windows95()) + { + pszFilePart = (char *)gettail((char_u *)pszOldFile); + if (STRLEN(pszFilePart) < 8 || pszFilePart[6] != '~') + return rename(pszOldFile, pszNewFile); + } + + /* Get base path of new file name. Undocumented feature: If pszNewFile is + * a directory, no error is returned and pszFilePart will be NULL. */ + if (GetFullPathName(pszNewFile, _MAX_PATH, szNewPath, &pszFilePart) == 0 + || pszFilePart == NULL) + return -1; + *pszFilePart = NUL; + + /* Get (and create) a unique temporary file name in directory of new file */ + if (GetTempFileName(szNewPath, "VIM", 0, szTempFile) == 0) + return -2; + + /* blow the temp file away */ + if (!DeleteFile(szTempFile)) + return -3; + + /* rename old file to the temp file */ + if (!MoveFile(pszOldFile, szTempFile)) + return -4; + + /* now create an empty file called pszOldFile; this prevents the operating + * system using pszOldFile as an alias (SFN) if we're renaming within the + * same directory. For example, we're editing a file called + * filename.asc.txt by its SFN, filena~1.txt. If we rename filena~1.txt + * to filena~1.txt~ (i.e., we're making a backup while writing it), the + * SFN for filena~1.txt~ will be filena~1.txt, by default, which will + * cause all sorts of problems later in buf_write. So, we create an empty + * file called filena~1.txt and the system will have to find some other + * SFN for filena~1.txt~, such as filena~2.txt + */ + if ((hf = CreateFile(pszOldFile, GENERIC_WRITE, 0, NULL, CREATE_NEW, + FILE_ATTRIBUTE_NORMAL, NULL)) == INVALID_HANDLE_VALUE) + return -5; + if (!CloseHandle(hf)) + return -6; + + /* rename the temp file to the new file */ + if (!MoveFile(szTempFile, pszNewFile)) + { + /* Renaming failed. Rename the file back to its old name, so that it + * looks like nothing happened. */ + (void)MoveFile(szTempFile, pszOldFile); + + return -7; + } + + /* Seems to be left around on Novell filesystems */ + DeleteFile(szTempFile); + + /* finally, remove the empty old file */ + if (!DeleteFile(pszOldFile)) + return -8; + + return 0; /* success */ +} + +/* + * Get the default shell for the current hardware platform + */ + char * +default_shell() +{ + char* psz = NULL; + + PlatformId(); + + if (g_PlatformId == VER_PLATFORM_WIN32_NT) /* Windows NT */ + psz = "cmd.exe"; + else if (g_PlatformId == VER_PLATFORM_WIN32_WINDOWS) /* Windows 95 */ + psz = "command.com"; + + return psz; +} + +/* + * mch_access() extends access() to do more detailed check on network drives. + * Returns 0 if file "n" has access rights according to "p", -1 otherwise. + */ + int +mch_access(char *n, int p) +{ + HANDLE hFile; + DWORD am; + int retval = -1; /* default: fail */ +#ifdef FEAT_MBYTE + WCHAR *wn = NULL; + + if (enc_codepage >= 0 && (int)GetACP() != enc_codepage) + wn = enc_to_ucs2(n, NULL); +#endif + + if (mch_isdir(n)) + { + char TempName[_MAX_PATH + 16] = ""; +#ifdef FEAT_MBYTE + WCHAR TempNameW[_MAX_PATH + 16] = L""; +#endif + + if (p & R_OK) + { + /* Read check is performed by seeing if we can do a find file on + * the directory for any file. */ +#ifdef FEAT_MBYTE + if (wn != NULL) + { + int i; + WIN32_FIND_DATAW d; + + for (i = 0; i < _MAX_PATH && wn[i] != 0; ++i) + TempNameW[i] = wn[i]; + if (TempNameW[i - 1] != '\\' && TempNameW[i - 1] != '/') + TempNameW[i++] = '\\'; + TempNameW[i++] = '*'; + TempNameW[i++] = 0; + + hFile = FindFirstFileW(TempNameW, &d); + if (hFile == INVALID_HANDLE_VALUE) + { + if (GetLastError() != ERROR_CALL_NOT_IMPLEMENTED) + goto getout; + + /* Retry with non-wide function (for Windows 98). */ + vim_free(wn); + wn = NULL; + } + else + (void)FindClose(hFile); + } + if (wn == NULL) +#endif + { + char *pch; + WIN32_FIND_DATA d; + + STRNCPY(TempName, n, _MAX_PATH); + pch = TempName + STRLEN(TempName) - 1; + if (*pch != '\\' && *pch != '/') + *++pch = '\\'; + *++pch = '*'; + *++pch = NUL; + + hFile = FindFirstFile(TempName, &d); + if (hFile == INVALID_HANDLE_VALUE) + goto getout; + (void)FindClose(hFile); + } + } + + if (p & W_OK) + { + /* Trying to create a temporary file in the directory should catch + * directories on read-only network shares. However, in + * directories whose ACL allows writes but denies deletes will end + * up keeping the temporary file :-(. */ +#ifdef FEAT_MBYTE + if (wn != NULL) + { + if (!GetTempFileNameW(wn, L"VIM", 0, TempNameW)) + { + if (GetLastError() != ERROR_CALL_NOT_IMPLEMENTED) + goto getout; + + /* Retry with non-wide function (for Windows 98). */ + vim_free(wn); + wn = NULL; + } + else + DeleteFileW(TempNameW); + } + if (wn == NULL) +#endif + { + if (!GetTempFileName(n, "VIM", 0, TempName)) + goto getout; + mch_remove((char_u *)TempName); + } + } + } + else + { + /* Trying to open the file for the required access does ACL, read-only + * network share, and file attribute checks. */ + am = ((p & W_OK) ? GENERIC_WRITE : 0) + | ((p & R_OK) ? GENERIC_READ : 0); +#ifdef FEAT_MBYTE + if (wn != NULL) + { + hFile = CreateFileW(wn, am, 0, NULL, OPEN_EXISTING, 0, NULL); + if (hFile == INVALID_HANDLE_VALUE + && GetLastError() == ERROR_CALL_NOT_IMPLEMENTED) + { + /* Retry with non-wide function (for Windows 98). */ + vim_free(wn); + wn = NULL; + } + } + if (wn == NULL) +#endif + hFile = CreateFile(n, am, 0, NULL, OPEN_EXISTING, 0, NULL); + if (hFile == INVALID_HANDLE_VALUE) + goto getout; + CloseHandle(hFile); + } + + retval = 0; /* success */ +getout: +#ifdef FEAT_MBYTE + vim_free(wn); +#endif + return retval; +} + +#if defined(FEAT_MBYTE) || defined(PROTO) +/* + * Version of open() that may use ucs2 file name. + */ + int +mch_open(char *name, int flags, int mode) +{ + WCHAR *wn; + int f; + + if (enc_codepage >= 0 && (int)GetACP() != enc_codepage +# ifdef __BORLANDC__ + /* Wide functions of Borland C 5.5 do not work on Windows 98. */ + && g_PlatformId == VER_PLATFORM_WIN32_NT +# endif + ) + { + wn = enc_to_ucs2(name, NULL); + if (wn != NULL) + { + f = _wopen(wn, flags, mode); + vim_free(wn); + if (f >= 0) + return f; + /* Retry with non-wide function (for Windows 98). Can't use + * GetLastError() here and it's unclear what errno gets set to if + * the _wopen() fails for missing wide functions. */ + } + } + + return open(name, flags, mode); +} + +/* + * Version of fopen() that may use ucs2 file name. + */ + FILE * +mch_fopen(char *name, char *mode) +{ + WCHAR *wn, *wm; + FILE *f = NULL; + + if (enc_codepage >= 0 && (int)GetACP() != enc_codepage +# ifdef __BORLANDC__ + /* Wide functions of Borland C 5.5 do not work on Windows 98. */ + && g_PlatformId == VER_PLATFORM_WIN32_NT +# endif + ) + { + wn = enc_to_ucs2(name, NULL); + wm = enc_to_ucs2(mode, NULL); + if (wn != NULL && wm != NULL) + f = _wfopen(wn, wm); + vim_free(wn); + vim_free(wm); + if (f != NULL) + return f; + /* Retry with non-wide function (for Windows 98). Can't use + * GetLastError() here and it's unclear what errno gets set to if + * the _wfopen() fails for missing wide functions. */ + } + + return fopen(name, mode); +} +#endif + +#ifdef FEAT_MBYTE +/* + * SUB STREAM (aka info stream) handling: + * + * NTFS can have sub streams for each file. Normal contents of file is + * stored in the main stream, and extra contents (author information and + * title and so on) can be stored in sub stream. After Windows 2000, user + * can access and store those informations in sub streams via explorer's + * property menuitem in right click menu. Those informations in sub streams + * were lost when copying only the main stream. So we have to copy sub + * streams. + * + * Incomplete explanation: + * http://msdn.microsoft.com/library/en-us/dnw2k/html/ntfs5.asp + * More useful info and an example: + * http://www.sysinternals.com/ntw2k/source/misc.shtml#streams + */ + +/* + * Copy info stream data "substream". Read from the file with BackupRead(sh) + * and write to stream "substream" of file "to". + * Errors are ignored. + */ + static void +copy_substream(HANDLE sh, void *context, WCHAR *to, WCHAR *substream, long len) +{ + HANDLE hTo; + WCHAR *to_name; + + to_name = malloc((wcslen(to) + wcslen(substream) + 1) * sizeof(WCHAR)); + wcscpy(to_name, to); + wcscat(to_name, substream); + + hTo = CreateFileW(to_name, GENERIC_WRITE, 0, NULL, OPEN_ALWAYS, + FILE_ATTRIBUTE_NORMAL, NULL); + if (hTo != INVALID_HANDLE_VALUE) + { + long done; + DWORD todo; + DWORD readcnt, written; + char buf[4096]; + + /* Copy block of bytes at a time. Abort when something goes wrong. */ + for (done = 0; done < len; done += written) + { + /* (size_t) cast for Borland C 5.5 */ + todo = (size_t)(len - done) > sizeof(buf) ? sizeof(buf) + : (size_t)(len - done); + if (!BackupRead(sh, (LPBYTE)buf, todo, &readcnt, + FALSE, FALSE, context) + || readcnt != todo + || !WriteFile(hTo, buf, todo, &written, NULL) + || written != todo) + break; + } + CloseHandle(hTo); + } + + free(to_name); +} + +/* + * Copy info streams from file "from" to file "to". + */ + static void +copy_infostreams(char_u *from, char_u *to) +{ + WCHAR *fromw; + WCHAR *tow; + HANDLE sh; + WIN32_STREAM_ID sid; + int headersize; + WCHAR streamname[_MAX_PATH]; + DWORD readcount; + void *context = NULL; + DWORD lo, hi; + int len; + + /* Convert the file names to wide characters. */ + fromw = enc_to_ucs2(from, NULL); + tow = enc_to_ucs2(to, NULL); + if (fromw != NULL && tow != NULL) + { + /* Open the file for reading. */ + sh = CreateFileW(fromw, GENERIC_READ, FILE_SHARE_READ, NULL, + OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL); + if (sh != INVALID_HANDLE_VALUE) + { + /* Use BackupRead() to find the info streams. Repeat until we + * have done them all.*/ + for (;;) + { + /* Get the header to find the length of the stream name. If + * the "readcount" is zero we have done all info streams. */ + ZeroMemory(&sid, sizeof(WIN32_STREAM_ID)); + headersize = (char *)&sid.cStreamName - (char *)&sid.dwStreamId; + if (!BackupRead(sh, (LPBYTE)&sid, headersize, + &readcount, FALSE, FALSE, &context) + || readcount == 0) + break; + + /* We only deal with streams that have a name. The normal + * file data appears to be without a name, even though docs + * suggest it is called "::$DATA". */ + if (sid.dwStreamNameSize > 0) + { + /* Read the stream name. */ + if (!BackupRead(sh, (LPBYTE)streamname, + sid.dwStreamNameSize, + &readcount, FALSE, FALSE, &context)) + break; + + /* Copy an info stream with a name ":anything:$DATA". + * Skip "::$DATA", it has no stream name (examples suggest + * it might be used for the normal file contents). + * Note that BackupRead() counts bytes, but the name is in + * wide characters. */ + len = readcount / sizeof(WCHAR); + streamname[len] = 0; + if (len > 7 && wcsicmp(streamname + len - 6, + L":$DATA") == 0) + { + streamname[len - 6] = 0; + copy_substream(sh, &context, tow, streamname, + (long)sid.Size.LowPart); + } + } + + /* Advance to the next stream. We might try seeking too far, + * but BackupSeek() doesn't skip over stream borders, thus + * that's OK. */ + (void)BackupSeek(sh, sid.Size.LowPart, sid.Size.HighPart, + &lo, &hi, &context); + } + + /* Clear the context. */ + (void)BackupRead(sh, NULL, 0, &readcount, TRUE, FALSE, &context); + + CloseHandle(sh); + } + } + vim_free(fromw); + vim_free(tow); +} +#endif + +/* + * Copy file attributes from file "from" to file "to". + * For Windows NT and later we copy info streams. + * Always returns zero, errors are ignored. + */ + int +mch_copy_file_attribute(char_u *from, char_u *to) +{ +#ifdef FEAT_MBYTE + /* File streams only work on Windows NT and later. */ + PlatformId(); + if (g_PlatformId == VER_PLATFORM_WIN32_NT) + copy_infostreams(from, to); +#endif + return 0; +} + +#if defined(MYRESETSTKOFLW) || defined(PROTO) +/* + * Recreate a destroyed stack guard page in win32. + * Written by Benjamin Peterson. + */ + +/* These magic numbers are from the MS header files */ +#define MIN_STACK_WIN9X 17 +#define MIN_STACK_WINNT 2 + +/* + * This function does the same thing as _resetstkoflw(), which is only + * available in DevStudio .net and later. + * Returns 0 for failure, 1 for success. + */ + int +myresetstkoflw(void) +{ + BYTE *pStackPtr; + BYTE *pGuardPage; + BYTE *pStackBase; + BYTE *pLowestPossiblePage; + MEMORY_BASIC_INFORMATION mbi; + SYSTEM_INFO si; + DWORD nPageSize; + DWORD dummy; + + /* This code will not work on win32s. */ + PlatformId(); + if (g_PlatformId == VER_PLATFORM_WIN32s) + return 0; + + /* We need to know the system page size. */ + GetSystemInfo(&si); + nPageSize = si.dwPageSize; + + /* ...and the current stack pointer */ + pStackPtr = (BYTE*)_alloca(1); + + /* ...and the base of the stack. */ + if (VirtualQuery(pStackPtr, &mbi, sizeof mbi) == 0) + return 0; + pStackBase = (BYTE*)mbi.AllocationBase; + + /* ...and the page thats min_stack_req pages away from stack base; this is + * the lowest page we could use. */ + pLowestPossiblePage = pStackBase + ((g_PlatformId == VER_PLATFORM_WIN32_NT) + ? MIN_STACK_WINNT : MIN_STACK_WIN9X) * nPageSize; + + /* On Win95, we want the next page down from the end of the stack. */ + if (g_PlatformId == VER_PLATFORM_WIN32_WINDOWS) + { + /* Find the page that's only 1 page down from the page that the stack + * ptr is in. */ + pGuardPage = (BYTE*)((DWORD)nPageSize * (((DWORD)pStackPtr + / (DWORD)nPageSize) - 1)); + if (pGuardPage < pLowestPossiblePage) + return 0; + + /* Apply the noaccess attribute to the page -- there's no guard + * attribute in win95-type OSes. */ + if (!VirtualProtect(pGuardPage, nPageSize, PAGE_NOACCESS, &dummy)) + return 0; + } + else + { + /* On NT, however, we want the first committed page in the stack Start + * at the stack base and move forward through memory until we find a + * committed block. */ + BYTE *pBlock = pStackBase; + + while (1) + { + if (VirtualQuery(pBlock, &mbi, sizeof mbi) == 0) + return 0; + + pBlock += mbi.RegionSize; + + if (mbi.State & MEM_COMMIT) + break; + } + + /* mbi now describes the first committed block in the stack. */ + if (mbi.Protect & PAGE_GUARD) + return 1; + + /* decide where the guard page should start */ + if ((long_u)(mbi.BaseAddress) < (long_u)pLowestPossiblePage) + pGuardPage = pLowestPossiblePage; + else + pGuardPage = (BYTE*)mbi.BaseAddress; + + /* allocate the guard page */ + if (!VirtualAlloc(pGuardPage, nPageSize, MEM_COMMIT, PAGE_READWRITE)) + return 0; + + /* apply the guard attribute to the page */ + if (!VirtualProtect(pGuardPage, nPageSize, PAGE_READWRITE | PAGE_GUARD, + &dummy)) + return 0; + } + + return 1; +} + +#endif |