2 * msvcrt.dll console functions
4 * Copyright 2000 Jon Griffiths
6 * Note: init and free don't need MT locking since they are called at DLL
7 * (de)attachment time, which is syncronised for us
12 DEFAULT_DEBUG_CHANNEL(msvcrt);
15 extern CRITICAL_SECTION MSVCRT_console_cs;
16 #define LOCK_CONSOLE EnterCriticalSection(&MSVCRT_console_cs)
17 #define UNLOCK_CONSOLE LeaveCriticalSection(&MSVCRT_console_cs)
19 static HANDLE MSVCRT_console_in = INVALID_HANDLE_VALUE;
20 static HANDLE MSVCRT_console_out= INVALID_HANDLE_VALUE;
21 static int __MSVCRT_console_buffer = MSVCRT_EOF;
23 /* INTERNAL: Initialise console handles */
24 void MSVCRT_init_console(void)
26 TRACE(":Opening console handles\n");
28 MSVCRT_console_in = GetStdHandle(STD_INPUT_HANDLE);
30 /* FIXME: Should be initialised with:
31 * CreateFileA("CONIN$", GENERIC_READ, FILE_SHARE_READ,
32 * NULL, OPEN_EXISTING, 0, (HANDLE)NULL);
35 MSVCRT_console_out= CreateFileA("CONOUT$", GENERIC_WRITE, FILE_SHARE_WRITE,
36 NULL, OPEN_EXISTING, 0, (HANDLE)NULL);
38 if ((MSVCRT_console_in == INVALID_HANDLE_VALUE) ||
39 (MSVCRT_console_out== INVALID_HANDLE_VALUE))
40 WARN(":Console handle Initialisation FAILED!\n");
43 /* INTERNAL: Free console handles */
44 void MSVCRT_free_console(void)
46 TRACE(":Closing console handles\n");
47 CloseHandle(MSVCRT_console_in);
48 CloseHandle(MSVCRT_console_out);
51 /*********************************************************************
54 int __cdecl MSVCRT__cputs(const char * str)
57 int retval = MSVCRT_EOF;
60 if (WriteConsoleA(MSVCRT_console_out, str, strlen(str), &count, NULL)
67 /*********************************************************************
70 int __cdecl MSVCRT__getch(void)
72 int retval = MSVCRT_EOF;
75 if (__MSVCRT_console_buffer != MSVCRT_EOF)
77 retval = __MSVCRT_console_buffer;
78 __MSVCRT_console_buffer = MSVCRT_EOF;
86 GetConsoleMode(MSVCRT_console_in, &mode);
88 SetConsoleMode(MSVCRT_console_in, 0);
91 if (ReadConsoleInputA(MSVCRT_console_in, &ir, 1, &count))
93 /* Only interested in ASCII chars */
94 if (ir.EventType == KEY_EVENT &&
95 ir.Event.KeyEvent.bKeyDown &&
96 ir.Event.KeyEvent.uChar.AsciiChar)
98 retval = ir.Event.KeyEvent.uChar.AsciiChar;
106 SetConsoleMode(MSVCRT_console_in, mode);
112 /*********************************************************************
115 int __cdecl MSVCRT__putch(int c)
117 int retval = MSVCRT_EOF;
120 if (WriteConsoleA(MSVCRT_console_out, &c, 1, &count, NULL) && count == 1)
126 /*********************************************************************
129 int __cdecl MSVCRT__getche(void)
133 retval = MSVCRT__getch();
134 if (retval != MSVCRT_EOF)
135 retval = MSVCRT__putch(retval);
140 /*********************************************************************
143 char *__cdecl MSVCRT__cgets(char *str)
147 str[1] = 0; /* Length */
148 /* FIXME: No editing of string supported */
152 if (str[1] >= str[0] || (str[1]++, c = MSVCRT__getche()) == MSVCRT_EOF || c == '\n')
161 /*********************************************************************
162 * _ungetch (MSVCRT.@)
164 int __cdecl MSVCRT__ungetch(int c)
166 int retval = MSVCRT_EOF;
168 if (c != MSVCRT_EOF && __MSVCRT_console_buffer == MSVCRT_EOF)
169 retval = __MSVCRT_console_buffer = c;
174 /*********************************************************************
177 int __cdecl MSVCRT__cscanf( const char * format, ... )
179 /* NOTE: If you extend this function, extend MSVCRT_fscanf in file.c too */
183 if (!*format) return 0;
184 WARN("\"%s\": semi-stub\n", format);
185 va_start(ap, format);
187 nch = MSVCRT__getch();
189 if (*format == ' ') {
190 /* skip whitespace */
191 while ((nch!=MSVCRT_EOF) && isspace(nch))
192 nch = MSVCRT__getch();
194 else if (*format == '%') {
198 case 'd': { /* read an integer */
199 int*val = va_arg(ap, int*);
201 /* skip initial whitespace */
202 while ((nch!=MSVCRT_EOF) && isspace(nch))
203 nch = MSVCRT__getch();
204 /* get sign and first digit */
206 nch = MSVCRT__getch();
215 nch = MSVCRT__getch();
216 /* read until no more digits */
217 while ((nch!=MSVCRT_EOF) && isdigit(nch)) {
218 cur = cur*10 + (nch - '0');
219 nch = MSVCRT__getch();
225 case 'f': { /* read a float */
226 float*val = va_arg(ap, float*);
228 /* skip initial whitespace */
229 while ((nch!=MSVCRT_EOF) && isspace(nch))
230 nch = MSVCRT__getch();
231 /* get sign and first digit */
233 nch = MSVCRT__getch();
242 /* read until no more digits */
243 while ((nch!=MSVCRT_EOF) && isdigit(nch)) {
244 cur = cur*10 + (nch - '0');
245 nch = MSVCRT__getch();
248 /* handle decimals */
250 nch = MSVCRT__getch();
251 while ((nch!=MSVCRT_EOF) && isdigit(nch)) {
253 cur += dec * (nch - '0');
254 nch = MSVCRT__getch();
261 case 's': { /* read a word */
262 char*str = va_arg(ap, char*);
264 /* skip initial whitespace */
265 while ((nch!=MSVCRT_EOF) && isspace(nch))
266 nch = MSVCRT__getch();
267 /* read until whitespace */
268 while ((nch!=MSVCRT_EOF) && !isspace(nch)) {
270 nch = MSVCRT__getch();
274 TRACE("read word: %s\n", str);
277 default: FIXME("unhandled: %%%c\n", *format);
283 /* check for character match */
285 nch = MSVCRT__getch();
290 if (nch != MSVCRT_EOF)
291 MSVCRT__ungetch(nch);
294 TRACE("returning %d\n", rd);
298 /*********************************************************************
301 int __cdecl MSVCRT__kbhit(void)
306 if (__MSVCRT_console_buffer != MSVCRT_EOF)
310 /* FIXME: There has to be a faster way than this in Win32.. */
311 INPUT_RECORD *ir = NULL;
314 GetNumberOfConsoleInputEvents(MSVCRT_console_in, &count);
316 if (count && (ir = MSVCRT_malloc(count * sizeof(INPUT_RECORD))) &&
317 PeekConsoleInputA(MSVCRT_console_in, ir, count, &count))
318 for(i = 0; i < count - 1; i++)
320 if (ir[i].EventType == KEY_EVENT &&
321 ir[i].Event.KeyEvent.bKeyDown &&
322 ir[i].Event.KeyEvent.uChar.AsciiChar)
336 extern int snprintf(char *, int, const char *, ...);
338 /*********************************************************************
339 * _cprintf (MSVCRT.@)
341 int __cdecl MSVCRT__cprintf( const char * format, ... )
343 char buf[2048], *mem = buf;
344 int written, resize = sizeof(buf), retval;
347 va_start( valist, format );
348 /* There are two conventions for snprintf failing:
349 * Return -1 if we truncated, or
350 * Return the number of bytes that would have been written
351 * The code below handles both cases
353 while ((written = snprintf( mem, resize, format, valist )) == -1 ||
356 resize = (written == -1 ? resize * 2 : written + 1);
359 if (!(mem = (char *)MSVCRT_malloc(resize)))
361 va_start( valist, format );
365 retval = MSVCRT__cputs( mem );