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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 DuplicateHandle(GetCurrentProcess(), GetStdHandle(STD_INPUT_HANDLE),
47 GetCurrentProcess(), &MSVCRT_console_in, 0, FALSE, DUPLICATE_SAME_ACCESS);
49 /* FIXME: Should be initialised with:
50 * CreateFileA("CONIN$", GENERIC_READ, FILE_SHARE_READ,
51 * NULL, OPEN_EXISTING, 0, NULL);
54 MSVCRT_console_out= CreateFileA("CONOUT$", GENERIC_WRITE, FILE_SHARE_WRITE,
55 NULL, OPEN_EXISTING, 0, NULL);
57 if ((MSVCRT_console_in == INVALID_HANDLE_VALUE) ||
58 (MSVCRT_console_out== INVALID_HANDLE_VALUE))
59 WARN(":Console handle Initialisation FAILED!\n");
62 /* INTERNAL: Free console handles */
63 void msvcrt_free_console(void)
65 TRACE(":Closing console handles\n");
66 CloseHandle(MSVCRT_console_in);
67 CloseHandle(MSVCRT_console_out);
70 /*********************************************************************
73 int _cputs(const char* str)
76 int retval = MSVCRT_EOF;
79 if (WriteConsoleA(MSVCRT_console_out, str, strlen(str), &count, NULL)
86 /*********************************************************************
91 int retval = MSVCRT_EOF;
94 if (__MSVCRT_console_buffer != MSVCRT_EOF)
96 retval = __MSVCRT_console_buffer;
97 __MSVCRT_console_buffer = MSVCRT_EOF;
105 GetConsoleMode(MSVCRT_console_in, &mode);
107 SetConsoleMode(MSVCRT_console_in, 0);
110 if (ReadConsoleInputA(MSVCRT_console_in, &ir, 1, &count))
112 /* Only interested in ASCII chars */
113 if (ir.EventType == KEY_EVENT &&
114 ir.Event.KeyEvent.bKeyDown &&
115 ir.Event.KeyEvent.uChar.AsciiChar)
117 retval = ir.Event.KeyEvent.uChar.AsciiChar;
125 SetConsoleMode(MSVCRT_console_in, mode);
131 /*********************************************************************
136 int retval = MSVCRT_EOF;
139 if (WriteConsoleA(MSVCRT_console_out, &c, 1, &count, NULL) && count == 1)
145 /*********************************************************************
153 if (retval != MSVCRT_EOF)
154 retval = _putch(retval);
159 /*********************************************************************
162 char* _cgets(char* str)
166 str[1] = 0; /* Length */
167 /* FIXME: No editing of string supported */
171 if (str[1] >= str[0] || (str[1]++, c = _getche()) == MSVCRT_EOF || c == '\n')
180 /*********************************************************************
181 * _ungetch (MSVCRT.@)
185 int retval = MSVCRT_EOF;
187 if (c != MSVCRT_EOF && __MSVCRT_console_buffer == MSVCRT_EOF)
188 retval = __MSVCRT_console_buffer = c;
193 /*********************************************************************
201 if (__MSVCRT_console_buffer != MSVCRT_EOF)
205 /* FIXME: There has to be a faster way than this in Win32.. */
206 INPUT_RECORD *ir = NULL;
209 GetNumberOfConsoleInputEvents(MSVCRT_console_in, &count);
211 if (count && (ir = MSVCRT_malloc(count * sizeof(INPUT_RECORD))) &&
212 PeekConsoleInputA(MSVCRT_console_in, ir, count, &count))
213 for(i = 0; i < count - 1; i++)
215 if (ir[i].EventType == KEY_EVENT &&
216 ir[i].Event.KeyEvent.bKeyDown &&
217 ir[i].Event.KeyEvent.uChar.AsciiChar)
231 /*********************************************************************
232 * _cprintf (MSVCRT.@)
234 int _cprintf(const char* format, ...)
236 char buf[2048], *mem = buf;
237 int written, resize = sizeof(buf), retval;
240 va_start( valist, format );
241 /* There are two conventions for snprintf failing:
242 * Return -1 if we truncated, or
243 * Return the number of bytes that would have been written
244 * The code below handles both cases
246 while ((written = _snprintf( mem, resize, format, valist )) == -1 ||
249 resize = (written == -1 ? resize * 2 : written + 1);
252 if (!(mem = (char *)MSVCRT_malloc(resize)))
254 va_start( valist, format );
258 retval = _cputs( mem );