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 #include "msvcrt/conio.h"
13 #include "msvcrt/malloc.h"
14 #include "msvcrt/stdio.h"
16 #include "wine/debug.h"
18 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
23 extern CRITICAL_SECTION MSVCRT_console_cs;
24 #define LOCK_CONSOLE EnterCriticalSection(&MSVCRT_console_cs)
25 #define UNLOCK_CONSOLE LeaveCriticalSection(&MSVCRT_console_cs)
27 static HANDLE MSVCRT_console_in = INVALID_HANDLE_VALUE;
28 static HANDLE MSVCRT_console_out= INVALID_HANDLE_VALUE;
29 static int __MSVCRT_console_buffer = MSVCRT_EOF;
31 /* INTERNAL: Initialise console handles */
32 void msvcrt_init_console(void)
34 TRACE(":Opening console handles\n");
36 MSVCRT_console_in = GetStdHandle(STD_INPUT_HANDLE);
38 /* FIXME: Should be initialised with:
39 * CreateFileA("CONIN$", GENERIC_READ, FILE_SHARE_READ,
40 * NULL, OPEN_EXISTING, 0, (HANDLE)NULL);
43 MSVCRT_console_out= CreateFileA("CONOUT$", GENERIC_WRITE, FILE_SHARE_WRITE,
44 NULL, OPEN_EXISTING, 0, (HANDLE)NULL);
46 if ((MSVCRT_console_in == INVALID_HANDLE_VALUE) ||
47 (MSVCRT_console_out== INVALID_HANDLE_VALUE))
48 WARN(":Console handle Initialisation FAILED!\n");
51 /* INTERNAL: Free console handles */
52 void msvcrt_free_console(void)
54 TRACE(":Closing console handles\n");
55 CloseHandle(MSVCRT_console_in);
56 CloseHandle(MSVCRT_console_out);
59 /*********************************************************************
62 int _cputs(const char* str)
65 int retval = MSVCRT_EOF;
68 if (WriteConsoleA(MSVCRT_console_out, str, strlen(str), &count, NULL)
75 /*********************************************************************
80 int retval = MSVCRT_EOF;
83 if (__MSVCRT_console_buffer != MSVCRT_EOF)
85 retval = __MSVCRT_console_buffer;
86 __MSVCRT_console_buffer = MSVCRT_EOF;
94 GetConsoleMode(MSVCRT_console_in, &mode);
96 SetConsoleMode(MSVCRT_console_in, 0);
99 if (ReadConsoleInputA(MSVCRT_console_in, &ir, 1, &count))
101 /* Only interested in ASCII chars */
102 if (ir.EventType == KEY_EVENT &&
103 ir.Event.KeyEvent.bKeyDown &&
104 ir.Event.KeyEvent.uChar.AsciiChar)
106 retval = ir.Event.KeyEvent.uChar.AsciiChar;
114 SetConsoleMode(MSVCRT_console_in, mode);
120 /*********************************************************************
125 int retval = MSVCRT_EOF;
128 if (WriteConsoleA(MSVCRT_console_out, &c, 1, &count, NULL) && count == 1)
134 /*********************************************************************
142 if (retval != MSVCRT_EOF)
143 retval = _putch(retval);
148 /*********************************************************************
151 char* _cgets(char* str)
155 str[1] = 0; /* Length */
156 /* FIXME: No editing of string supported */
160 if (str[1] >= str[0] || (str[1]++, c = _getche()) == MSVCRT_EOF || c == '\n')
169 /*********************************************************************
170 * _ungetch (MSVCRT.@)
174 int retval = MSVCRT_EOF;
176 if (c != MSVCRT_EOF && __MSVCRT_console_buffer == MSVCRT_EOF)
177 retval = __MSVCRT_console_buffer = c;
182 /*********************************************************************
185 int _cscanf(const char* format, ...)
187 /* NOTE: If you extend this function, extend MSVCRT_fscanf in file.c too */
191 if (!*format) return 0;
192 WARN("\"%s\": semi-stub\n", format);
193 va_start(ap, format);
197 if (*format == ' ') {
198 /* skip whitespace */
199 while ((nch!=MSVCRT_EOF) && isspace(nch))
202 else if (*format == '%') {
206 case 'd': { /* read an integer */
207 int*val = va_arg(ap, int*);
209 /* skip initial whitespace */
210 while ((nch!=MSVCRT_EOF) && isspace(nch))
212 /* get sign and first digit */
224 /* read until no more digits */
225 while ((nch!=MSVCRT_EOF) && isdigit(nch)) {
226 cur = cur*10 + (nch - '0');
233 case 'f': { /* read a float */
234 float*val = va_arg(ap, float*);
236 /* skip initial whitespace */
237 while ((nch!=MSVCRT_EOF) && isspace(nch))
239 /* get sign and first digit */
250 /* read until no more digits */
251 while ((nch!=MSVCRT_EOF) && isdigit(nch)) {
252 cur = cur*10 + (nch - '0');
256 /* handle decimals */
259 while ((nch!=MSVCRT_EOF) && isdigit(nch)) {
261 cur += dec * (nch - '0');
269 case 's': { /* read a word */
270 char*str = va_arg(ap, char*);
272 /* skip initial whitespace */
273 while ((nch!=MSVCRT_EOF) && isspace(nch))
275 /* read until whitespace */
276 while ((nch!=MSVCRT_EOF) && !isspace(nch)) {
282 TRACE("read word: %s\n", str);
285 default: FIXME("unhandled: %%%c\n", *format);
291 /* check for character match */
298 if (nch != MSVCRT_EOF)
302 TRACE("returning %d\n", rd);
306 /*********************************************************************
314 if (__MSVCRT_console_buffer != MSVCRT_EOF)
318 /* FIXME: There has to be a faster way than this in Win32.. */
319 INPUT_RECORD *ir = NULL;
322 GetNumberOfConsoleInputEvents(MSVCRT_console_in, &count);
324 if (count && (ir = MSVCRT_malloc(count * sizeof(INPUT_RECORD))) &&
325 PeekConsoleInputA(MSVCRT_console_in, ir, count, &count))
326 for(i = 0; i < count - 1; i++)
328 if (ir[i].EventType == KEY_EVENT &&
329 ir[i].Event.KeyEvent.bKeyDown &&
330 ir[i].Event.KeyEvent.uChar.AsciiChar)
344 /*********************************************************************
345 * _cprintf (MSVCRT.@)
347 int _cprintf(const char* format, ...)
349 char buf[2048], *mem = buf;
350 int written, resize = sizeof(buf), retval;
353 va_start( valist, format );
354 /* There are two conventions for snprintf failing:
355 * Return -1 if we truncated, or
356 * Return the number of bytes that would have been written
357 * The code below handles both cases
359 while ((written = _snprintf( mem, resize, format, valist )) == -1 ||
362 resize = (written == -1 ? resize * 2 : written + 1);
365 if (!(mem = (char *)MSVCRT_malloc(resize)))
367 va_start( valist, format );
371 retval = _cputs( mem );