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os_mswin.c
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os_mswin.c
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/* 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_mswin.c
*
* Routines common to both Win16 and Win32.
*/
#ifdef WIN16
# ifdef __BORLANDC__
# pragma warn -par
# pragma warn -ucp
# pragma warn -use
# pragma warn -aus
# endif
#endif
#include "vimio.h"
#include "vim.h"
#ifdef HAVE_FCNTL_H
# include <fcntl.h>
#endif
#ifdef WIN16
# define SHORT_FNAME /* always 8.3 file name */
# include <dos.h>
# include <string.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
#if defined(FEAT_PRINTER) && !defined(FEAT_POSTSCRIPT)
# include <dlgs.h>
# ifdef WIN3264
# include <winspool.h>
# else
# include <print.h>
# endif
# include <commdlg.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
/*
* 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 int BOOL;
typedef int CALLBACK;
typedef int COLORREF;
typedef int CONSOLE_CURSOR_INFO;
typedef int COORD;
typedef int DWORD;
typedef int ENUMLOGFONT;
typedef int HANDLE;
typedef int HDC;
typedef int HFONT;
typedef int HICON;
typedef int HWND;
typedef int INPUT_RECORD;
typedef int KEY_EVENT_RECORD;
typedef int LOGFONT;
typedef int LPARAM;
typedef int LPBOOL;
typedef int LPCSTR;
typedef int LPCWSTR;
typedef int LPSTR;
typedef int LPTSTR;
typedef int LPWSTR;
typedef int LRESULT;
typedef int MOUSE_EVENT_RECORD;
typedef int NEWTEXTMETRIC;
typedef int PACL;
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 UINT;
typedef int WCHAR;
typedef int WORD;
typedef int WPARAM;
typedef void VOID;
#endif
/* Record all output and all keyboard & mouse input */
/* #define MCH_WRITE_DUMP */
#ifdef MCH_WRITE_DUMP
FILE* fdDump = NULL;
#endif
#ifdef WIN3264
extern DWORD g_PlatformId;
#endif
#ifndef FEAT_GUI_MSWIN
extern char g_szOrigTitle[];
#endif
#ifdef FEAT_GUI
extern HWND s_hwnd;
#else
static HWND s_hwnd = 0; /* console window handle, set by GetConsoleHwnd() */
#endif
extern int WSInitialized;
/* Don't generate prototypes here, because some systems do have these
* functions. */
#if defined(__GNUC__) && !defined(PROTO)
# ifndef __MINGW32__
int _stricoll(char *a, char *b)
{
// the ANSI-ish correct way is to use strxfrm():
char a_buff[512], b_buff[512]; // file names, so this is enough on Win32
strxfrm(a_buff, a, 512);
strxfrm(b_buff, b, 512);
return strcoll(a_buff, b_buff);
}
char * _fullpath(char *buf, char *fname, int len)
{
LPTSTR toss;
return (char *)GetFullPathName(fname, len, buf, &toss);
}
# endif
int _chdrive(int drive)
{
char temp [3] = "-:";
temp[0] = drive + 'A' - 1;
return !SetCurrentDirectory(temp);
}
#else
# ifdef __BORLANDC__
/* being a more ANSI compliant compiler, BorlandC doesn't define _stricoll:
* but it does in BC 5.02! */
# if __BORLANDC__ < 0x502
int _stricoll(char *a, char *b)
{
# if 1
// this is fast but not correct:
return stricmp(a, b);
# else
// the ANSI-ish correct way is to use strxfrm():
char a_buff[512], b_buff[512]; // file names, so this is enough on Win32
strxfrm(a_buff, a, 512);
strxfrm(b_buff, b, 512);
return strcoll(a_buff, b_buff);
# endif
}
# endif
# endif
#endif
#if defined(FEAT_GUI_MSWIN) || defined(PROTO)
/*
* 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)
{
display_errors();
ml_close_all(TRUE); /* remove all memfiles */
# ifdef FEAT_OLE
UninitOLE();
# endif
# ifdef FEAT_NETBEANS_INTG
if (WSInitialized)
{
WSInitialized = FALSE;
WSACleanup();
}
# endif
#ifdef DYNAMIC_GETTEXT
dyn_libintl_end();
#endif
if (gui.in_use)
gui_exit(r);
#ifdef EXITFREE
free_all_mem();
#endif
exit(r);
}
#endif /* FEAT_GUI_MSWIN */
/*
* Init the tables for toupper() and tolower().
*/
void
mch_early_init(void)
{
int i;
#ifdef WIN3264
PlatformId();
#endif
/* Init the tables for toupper() and tolower() */
for (i = 0; i < 256; ++i)
toupper_tab[i] = tolower_tab[i] = i;
#ifdef WIN3264
CharUpperBuff(toupper_tab, 256);
CharLowerBuff(tolower_tab, 256);
#else
AnsiUpperBuff(toupper_tab, 256);
AnsiLowerBuff(tolower_tab, 256);
#endif
#if defined(FEAT_MBYTE) && !defined(FEAT_GUI)
(void)get_cmd_argsW(NULL);
#endif
}
/*
* Return TRUE if the input comes from a terminal, FALSE otherwise.
*/
int
mch_input_isatty()
{
#ifdef FEAT_GUI_MSWIN
return OK; /* GUI always has a tty */
#else
if (isatty(read_cmd_fd))
return TRUE;
return FALSE;
#endif
}
#ifdef FEAT_TITLE
/*
* mch_settitle(): set titlebar of our window
*/
void
mch_settitle(
char_u *title,
char_u *icon)
{
# ifdef FEAT_GUI_MSWIN
gui_mch_settitle(title, icon);
# else
if (title != NULL)
{
# ifdef FEAT_MBYTE
if (enc_codepage >= 0 && (int)GetACP() != enc_codepage)
{
/* Convert the title from 'encoding' to the active codepage. */
WCHAR *wp = enc_to_ucs2(title, NULL);
int n;
if (wp != NULL)
{
n = SetConsoleTitleW(wp);
vim_free(wp);
if (n != 0 || GetLastError() != ERROR_CALL_NOT_IMPLEMENTED)
return;
}
}
# endif
SetConsoleTitle(title);
}
# endif
}
/*
* Restore the window/icon title.
* which is one of:
* 1: Just restore title
* 2: Just restore icon (which we don't have)
* 3: Restore title and icon (which we don't have)
*/
/*ARGSUSED*/
void
mch_restore_title(
int which)
{
#ifndef FEAT_GUI_MSWIN
mch_settitle((which & 1) ? g_szOrigTitle : NULL, NULL);
#endif
}
/*
* Return TRUE if we can restore the title (we can)
*/
int
mch_can_restore_title()
{
return TRUE;
}
/*
* Return TRUE if we can restore the icon title (we can't)
*/
int
mch_can_restore_icon()
{
return FALSE;
}
#endif /* FEAT_TITLE */
/*
* Get absolute file name into buffer "buf" of length "len" bytes,
* turning all '/'s into '\\'s and getting the correct case of each component
* of the file name. Append a (back)slash to a directory name.
* When 'shellslash' set do it the other way around.
* Return OK or FAIL.
*/
/*ARGSUSED*/
int
mch_FullName(
char_u *fname,
char_u *buf,
int len,
int force)
{
int nResult = FAIL;
#ifdef __BORLANDC__
if (*fname == NUL) /* Borland behaves badly here - make it consistent */
nResult = mch_dirname(buf, len);
else
#endif
{
#ifdef FEAT_MBYTE
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
)
{
WCHAR *wname;
WCHAR wbuf[MAX_PATH];
char_u *cname = NULL;
/* Use the wide function:
* - convert the fname from 'encoding' to UCS2.
* - invoke _wfullpath()
* - convert the result from UCS2 to 'encoding'.
*/
wname = enc_to_ucs2(fname, NULL);
if (wname != NULL && _wfullpath(wbuf, wname, MAX_PATH - 1) != NULL)
{
cname = ucs2_to_enc((short_u *)wbuf, NULL);
if (cname != NULL)
{
vim_strncpy(buf, cname, len - 1);
nResult = OK;
}
}
vim_free(wname);
vim_free(cname);
}
if (nResult == FAIL) /* fall back to non-wide function */
#endif
{
if (_fullpath(buf, fname, len - 1) == NULL)
{
/* failed, use relative path name */
vim_strncpy(buf, fname, len - 1);
}
else
nResult = OK;
}
}
#ifdef USE_FNAME_CASE
fname_case(buf, len);
#else
slash_adjust(buf);
#endif
return nResult;
}
/*
* Return TRUE if "fname" does not depend on the current directory.
*/
int
mch_isFullName(char_u *fname)
{
char szName[_MAX_PATH + 1];
/* A name like "d:/foo" and "//server/share" is absolute */
if ((fname[0] && fname[1] == ':' && (fname[2] == '/' || fname[2] == '\\'))
|| (fname[0] == fname[1] && (fname[0] == '/' || fname[0] == '\\')))
return TRUE;
/* A name that can't be made absolute probably isn't absolute. */
if (mch_FullName(fname, szName, _MAX_PATH, FALSE) == FAIL)
return FALSE;
return pathcmp(fname, szName, -1) == 0;
}
/*
* Replace all slashes by backslashes.
* This used to be the other way around, but MS-DOS sometimes has problems
* with slashes (e.g. in a command name). We can't have mixed slashes and
* backslashes, because comparing file names will not work correctly. The
* commands that use a file name should try to avoid the need to type a
* backslash twice.
* When 'shellslash' set do it the other way around.
*/
void
slash_adjust(p)
char_u *p;
{
while (*p)
{
if (*p == psepcN)
*p = psepc;
mb_ptr_adv(p);
}
}
/*
* stat() can't handle a trailing '/' or '\', remove it first.
*/
int
vim_stat(const char *name, struct stat *stp)
{
char buf[_MAX_PATH + 1];
char *p;
vim_strncpy((char_u *)buf, (char_u *)name, _MAX_PATH);
p = buf + strlen(buf);
if (p > buf)
mb_ptr_back(buf, p);
if (p > buf && (*p == '\\' || *p == '/') && p[-1] != ':')
*p = NUL;
#ifdef FEAT_MBYTE
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
)
{
WCHAR *wp = enc_to_ucs2(buf, NULL);
int n;
if (wp != NULL)
{
n = _wstat(wp, (struct _stat *)stp);
vim_free(wp);
if (n >= 0)
return n;
/* Retry with non-wide function (for Windows 98). Can't use
* GetLastError() here and it's unclear what errno gets set to if
* the _wstat() fails for missing wide functions. */
}
}
#endif
return stat(buf, stp);
}
#if defined(FEAT_GUI_MSWIN) || defined(PROTO)
/*ARGSUSED*/
void
mch_settmode(int tmode)
{
/* nothing to do */
}
int
mch_get_shellsize(void)
{
/* never used */
return OK;
}
void
mch_set_shellsize(void)
{
/* never used */
}
/*
* Rows and/or Columns has changed.
*/
void
mch_new_shellsize(void)
{
/* never used */
}
#endif
/*
* We have no job control, so fake it by starting a new shell.
*/
void
mch_suspend()
{
suspend_shell();
}
#if defined(USE_MCH_ERRMSG) || defined(PROTO)
#ifdef display_errors
# undef display_errors
#endif
/*
* Display the saved error message(s).
*/
void
display_errors()
{
char *p;
if (error_ga.ga_data != NULL)
{
/* avoid putting up a message box with blanks only */
for (p = (char *)error_ga.ga_data; *p; ++p)
if (!isspace(*p))
{
(void)gui_mch_dialog(
#ifdef FEAT_GUI
gui.starting ? VIM_INFO :
#endif
VIM_ERROR,
#ifdef FEAT_GUI
gui.starting ? (char_u *)_("Message") :
#endif
(char_u *)_("Error"),
p, (char_u *)_("&Ok"), 1, NULL);
break;
}
ga_clear(&error_ga);
}
}
#endif
/*
* Return TRUE if "p" contain a wildcard that can be expanded by
* dos_expandpath().
*/
int
mch_has_exp_wildcard(char_u *p)
{
for ( ; *p; mb_ptr_adv(p))
{
if (vim_strchr((char_u *)"?*[", *p) != NULL
|| (*p == '~' && p[1] != NUL))
return TRUE;
}
return FALSE;
}
/*
* Return TRUE if "p" contain a wildcard or a "~1" kind of thing (could be a
* shortened file name).
*/
int
mch_has_wildcard(char_u *p)
{
for ( ; *p; mb_ptr_adv(p))
{
if (vim_strchr((char_u *)
# ifdef VIM_BACKTICK
"?*$[`"
# else
"?*$["
# endif
, *p) != NULL
|| (*p == '~' && p[1] != NUL))
return TRUE;
}
return FALSE;
}
/*
* The normal _chdir() does not change the default drive. This one does.
* Returning 0 implies success; -1 implies failure.
*/
int
mch_chdir(char *path)
{
if (path[0] == NUL) /* just checking... */
return -1;
if (isalpha(path[0]) && path[1] == ':') /* has a drive name */
{
/* If we can change to the drive, skip that part of the path. If we
* can't then the current directory may be invalid, try using chdir()
* with the whole path. */
if (_chdrive(TOLOWER_ASC(path[0]) - 'a' + 1) == 0)
path += 2;
}
if (*path == NUL) /* drive name only */
return 0;
#ifdef FEAT_MBYTE
if (enc_codepage >= 0 && (int)GetACP() != enc_codepage)
{
WCHAR *p = enc_to_ucs2(path, NULL);
int n;
if (p != NULL)
{
n = _wchdir(p);
vim_free(p);
if (n == 0)
return 0;
/* Retry with non-wide function (for Windows 98). */
}
}
#endif
return chdir(path); /* let the normal chdir() do the rest */
}
/*
* Switching off termcap mode is only allowed when Columns is 80, otherwise a
* crash may result. It's always allowed on NT or when running the GUI.
*/
/*ARGSUSED*/
int
can_end_termcap_mode(
int give_msg)
{
#ifdef FEAT_GUI_MSWIN
return TRUE; /* GUI starts a new console anyway */
#else
if (g_PlatformId == VER_PLATFORM_WIN32_NT || Columns == 80)
return TRUE;
if (give_msg)
msg(_("'columns' is not 80, cannot execute external commands"));
return FALSE;
#endif
}
#ifdef FEAT_GUI_MSWIN
/*
* return non-zero if a character is available
*/
int
mch_char_avail()
{
/* never used */
return TRUE;
}
#endif
/*
* set screen mode, always fails.
*/
/*ARGSUSED*/
int
mch_screenmode(
char_u *arg)
{
EMSG(_(e_screenmode));
return FAIL;
}
#if defined(FEAT_LIBCALL) || defined(PROTO)
/*
* Call a DLL routine which takes either a string or int param
* and returns an allocated string.
* Return OK if it worked, FAIL if not.
*/
# ifdef WIN3264
typedef LPTSTR (*MYSTRPROCSTR)(LPTSTR);
typedef LPTSTR (*MYINTPROCSTR)(int);
typedef int (*MYSTRPROCINT)(LPTSTR);
typedef int (*MYINTPROCINT)(int);
# else
typedef LPSTR (*MYSTRPROCSTR)(LPSTR);
typedef LPSTR (*MYINTPROCSTR)(int);
typedef int (*MYSTRPROCINT)(LPSTR);
typedef int (*MYINTPROCINT)(int);
# endif
# ifndef WIN16
/*
* Check if a pointer points to a valid NUL terminated string.
* Return the length of the string, including terminating NUL.
* Returns 0 for an invalid pointer, 1 for an empty string.
*/
static size_t
check_str_len(char_u *str)
{
SYSTEM_INFO si;
MEMORY_BASIC_INFORMATION mbi;
size_t length = 0;
size_t i;
const char *p;
/* get page size */
GetSystemInfo(&si);
/* get memory information */
if (VirtualQuery(str, &mbi, sizeof(mbi)))
{
/* pre cast these (typing savers) */
long_u dwStr = (long_u)str;
long_u dwBaseAddress = (long_u)mbi.BaseAddress;
/* get start address of page that str is on */
long_u strPage = dwStr - (dwStr - dwBaseAddress) % si.dwPageSize;
/* get length from str to end of page */
long_u pageLength = si.dwPageSize - (dwStr - strPage);
for (p = str; !IsBadReadPtr(p, pageLength);
p += pageLength, pageLength = si.dwPageSize)
for (i = 0; i < pageLength; ++i, ++length)
if (p[i] == NUL)
return length + 1;
}
return 0;
}
# endif
int
mch_libcall(
char_u *libname,
char_u *funcname,
char_u *argstring, /* NULL when using a argint */
int argint,
char_u **string_result,/* NULL when using number_result */
int *number_result)
{
HINSTANCE hinstLib;
MYSTRPROCSTR ProcAdd;
MYINTPROCSTR ProcAddI;
char_u *retval_str = NULL;
int retval_int = 0;
size_t len;
BOOL fRunTimeLinkSuccess = FALSE;
// Get a handle to the DLL module.
hinstLib = LoadLibrary(libname);
// If the handle is valid, try to get the function address.
if (hinstLib != NULL)
{
#ifdef HAVE_TRY_EXCEPT
__try
{
#endif
if (argstring != NULL)
{
/* Call with string argument */
ProcAdd = (MYSTRPROCSTR) GetProcAddress(hinstLib, funcname);
if ((fRunTimeLinkSuccess = (ProcAdd != NULL)) != 0)
{
if (string_result == NULL)
retval_int = ((MYSTRPROCINT)ProcAdd)(argstring);
else
retval_str = (ProcAdd)(argstring);
}
}
else
{
/* Call with number argument */
ProcAddI = (MYINTPROCSTR) GetProcAddress(hinstLib, funcname);
if ((fRunTimeLinkSuccess = (ProcAddI != NULL)) != 0)
{
if (string_result == NULL)
retval_int = ((MYINTPROCINT)ProcAddI)(argint);
else
retval_str = (ProcAddI)(argint);
}
}
// Save the string before we free the library.
// Assume that a "1" result is an illegal pointer.
if (string_result == NULL)
*number_result = retval_int;
else if (retval_str != NULL
# ifdef WIN16
&& retval_str != (char_u *)1
&& retval_str != (char_u *)-1
&& !IsBadStringPtr(retval_str, INT_MAX)
&& (len = strlen(retval_str) + 1) > 0
# else
&& (len = check_str_len(retval_str)) > 0
# endif
)
{
*string_result = lalloc((long_u)len, TRUE);
if (*string_result != NULL)
mch_memmove(*string_result, retval_str, len);
}
#ifdef HAVE_TRY_EXCEPT
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
if (GetExceptionCode() == EXCEPTION_STACK_OVERFLOW)
RESETSTKOFLW();
fRunTimeLinkSuccess = 0;
}
#endif
// Free the DLL module.
(void)FreeLibrary(hinstLib);
}
if (!fRunTimeLinkSuccess)
{
EMSG2(_(e_libcall), funcname);
return FAIL;
}
return OK;
}
#endif
#if defined(FEAT_MBYTE) || defined(PROTO)
/*
* Convert an UTF-8 string to UCS-2.
* "instr[inlen]" is the input. "inlen" is in bytes.
* When "outstr" is NULL only return the number of UCS-2 words produced.
* Otherwise "outstr" must be a buffer of sufficient size.
* Returns the number of UCS-2 words produced.
*/
int
utf8_to_ucs2(char_u *instr, int inlen, short_u *outstr, int *unconvlenp)
{
int outlen = 0;
char_u *p = instr;
int todo = inlen;
int l;
while (todo > 0)
{
/* Only convert if we have a complete sequence. */
l = utf_ptr2len_len(p, todo);
if (l > todo)
{
/* Return length of incomplete sequence. */
if (unconvlenp != NULL)
*unconvlenp = todo;
break;
}
if (outstr != NULL)
*outstr++ = utf_ptr2char(p);
++outlen;
p += l;
todo -= l;
}
return outlen;
}
/*
* Convert an UCS-2 string to UTF-8.
* The input is "instr[inlen]" with "inlen" in number of ucs-2 words.
* When "outstr" is NULL only return the required number of bytes.
* Otherwise "outstr" must be a buffer of sufficient size.
* Return the number of bytes produced.
*/
int
ucs2_to_utf8(short_u *instr, int inlen, char_u *outstr)
{
int outlen = 0;
int todo = inlen;
short_u *p = instr;
int l;
while (todo > 0)
{
if (outstr != NULL)
{
l = utf_char2bytes(*p, outstr);
outstr += l;
}
else
l = utf_char2len(*p);
++p;
outlen += l;
--todo;
}
return outlen;
}
/*
* Call MultiByteToWideChar() and allocate memory for the result.
* Returns the result in "*out[*outlen]" with an extra zero appended.
* "outlen" is in words.
*/
void
MultiByteToWideChar_alloc(UINT cp, DWORD flags,
LPCSTR in, int inlen,
LPWSTR *out, int *outlen)
{
*outlen = MultiByteToWideChar(cp, flags, in, inlen, 0, 0);
/* Add one one word to avoid a zero-length alloc(). */
*out = (LPWSTR)alloc(sizeof(WCHAR) * (*outlen + 1));
if (*out != NULL)
{
MultiByteToWideChar(cp, flags, in, inlen, *out, *outlen);
(*out)[*outlen] = 0;
}
}
/*
* Call WideCharToMultiByte() and allocate memory for the result.
* Returns the result in "*out[*outlen]" with an extra NUL appended.
*/
void
WideCharToMultiByte_alloc(UINT cp, DWORD flags,
LPCWSTR in, int inlen,
LPSTR *out, int *outlen,
LPCSTR def, LPBOOL useddef)
{
*outlen = WideCharToMultiByte(cp, flags, in, inlen, NULL, 0, def, useddef);
/* Add one one byte to avoid a zero-length alloc(). */
*out = alloc((unsigned)*outlen + 1);
if (*out != NULL)
{
WideCharToMultiByte(cp, flags, in, inlen, *out, *outlen, def, useddef);