2 * msvcrt.dll console functions
4 * Copyright 2000 Jon Griffiths
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 * Note: init and free don't need MT locking since they are called at DLL
21 * (de)attachment time, which is syncronised for us
27 #include "wine/debug.h"
29 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
34 #define LOCK_CONSOLE _mlock(_CONIO_LOCK)
35 #define UNLOCK_CONSOLE _munlock(_CONIO_LOCK)
37 static HANDLE MSVCRT_console_in = INVALID_HANDLE_VALUE;
38 static HANDLE MSVCRT_console_out= INVALID_HANDLE_VALUE;
39 static int __MSVCRT_console_buffer = MSVCRT_EOF;
41 /* INTERNAL: Initialise console handles */
42 void msvcrt_init_console(void)
44 TRACE(":Opening console handles\n");
46 MSVCRT_console_in = CreateFileA("CONIN$", GENERIC_READ, FILE_SHARE_READ,
47 NULL, OPEN_EXISTING, 0, NULL);
48 MSVCRT_console_out= CreateFileA("CONOUT$", GENERIC_WRITE, FILE_SHARE_WRITE,
49 NULL, OPEN_EXISTING, 0, NULL);
51 if ((MSVCRT_console_in == INVALID_HANDLE_VALUE) ||
52 (MSVCRT_console_out== INVALID_HANDLE_VALUE))
53 WARN(":Console handle Initialisation FAILED!\n");
56 /* INTERNAL: Free console handles */
57 void msvcrt_free_console(void)
59 TRACE(":Closing console handles\n");
60 CloseHandle(MSVCRT_console_in);
61 CloseHandle(MSVCRT_console_out);
64 /*********************************************************************
67 int CDECL _cputs(const char* str)
70 int retval = MSVCRT_EOF;
73 if (WriteConsoleA(MSVCRT_console_out, str, strlen(str), &count, NULL)
80 /*********************************************************************
83 int CDECL _getch(void)
85 int retval = MSVCRT_EOF;
88 if (__MSVCRT_console_buffer != MSVCRT_EOF)
90 retval = __MSVCRT_console_buffer;
91 __MSVCRT_console_buffer = MSVCRT_EOF;
99 GetConsoleMode(MSVCRT_console_in, &mode);
101 SetConsoleMode(MSVCRT_console_in, 0);
104 if (ReadConsoleInputA(MSVCRT_console_in, &ir, 1, &count))
106 /* Only interested in ASCII chars */
107 if (ir.EventType == KEY_EVENT &&
108 ir.Event.KeyEvent.bKeyDown &&
109 ir.Event.KeyEvent.uChar.AsciiChar)
111 retval = ir.Event.KeyEvent.uChar.AsciiChar;
119 SetConsoleMode(MSVCRT_console_in, mode);
125 /*********************************************************************
128 int CDECL _putch(int c)
130 int retval = MSVCRT_EOF;
133 if (WriteConsoleA(MSVCRT_console_out, &c, 1, &count, NULL) && count == 1)
139 /*********************************************************************
142 int CDECL _getche(void)
147 if (retval != MSVCRT_EOF)
148 retval = _putch(retval);
153 /*********************************************************************
156 char* CDECL _cgets(char* str)
162 TRACE("(%p)\n", str);
163 str[1] = 0; /* Length */
165 GetConsoleMode(MSVCRT_console_in, &conmode);
166 SetConsoleMode(MSVCRT_console_in, ENABLE_LINE_INPUT|ENABLE_ECHO_INPUT|ENABLE_PROCESSED_INPUT);
168 if(ReadConsoleA(MSVCRT_console_in, buf, str[0], &got, NULL)) {
169 if(buf[got-2] == '\r') {
173 else if(got == 1 && buf[got-1] == '\n') {
177 else if(got == str[0] && buf[got-1] == '\r') {
186 SetConsoleMode(MSVCRT_console_in, conmode);
191 /*********************************************************************
192 * _ungetch (MSVCRT.@)
194 int CDECL _ungetch(int c)
196 int retval = MSVCRT_EOF;
198 if (c != MSVCRT_EOF && __MSVCRT_console_buffer == MSVCRT_EOF)
199 retval = __MSVCRT_console_buffer = c;
204 /*********************************************************************
207 int CDECL _kbhit(void)
212 if (__MSVCRT_console_buffer != MSVCRT_EOF)
216 /* FIXME: There has to be a faster way than this in Win32.. */
217 INPUT_RECORD *ir = NULL;
220 GetNumberOfConsoleInputEvents(MSVCRT_console_in, &count);
222 if (count && (ir = MSVCRT_malloc(count * sizeof(INPUT_RECORD))) &&
223 PeekConsoleInputA(MSVCRT_console_in, ir, count, &count))
224 for(i = 0; i < count - 1; i++)
226 if (ir[i].EventType == KEY_EVENT &&
227 ir[i].Event.KeyEvent.bKeyDown &&
228 ir[i].Event.KeyEvent.uChar.AsciiChar)
241 /*********************************************************************
242 * _cprintf (MSVCRT.@)
244 int CDECL _cprintf(const char* format, ...)
246 char buf[2048], *mem = buf;
247 int written, resize = sizeof(buf), retval;
250 va_start( valist, format );
251 /* There are two conventions for snprintf failing:
252 * Return -1 if we truncated, or
253 * Return the number of bytes that would have been written
254 * The code below handles both cases
256 while ((written = MSVCRT_vsnprintf( mem, resize, format, valist )) == -1 ||
259 resize = (written == -1 ? resize * 2 : written + 1);
262 if (!(mem = MSVCRT_malloc(resize)))
264 va_start( valist, format );
268 retval = _cputs( mem );