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 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 _cputs(const char* str)
70 int retval = MSVCRT_EOF;
73 if (WriteConsoleA(MSVCRT_console_out, str, strlen(str), &count, NULL)
80 /*********************************************************************
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 /*********************************************************************
130 int retval = MSVCRT_EOF;
133 if (WriteConsoleA(MSVCRT_console_out, &c, 1, &count, NULL) && count == 1)
139 /*********************************************************************
147 if (retval != MSVCRT_EOF)
148 retval = _putch(retval);
153 /*********************************************************************
156 char* _cgets(char* str)
160 str[1] = 0; /* Length */
161 /* FIXME: No editing of string supported */
165 if (str[1] >= str[0] || (str[1]++, c = _getche()) == MSVCRT_EOF || c == '\n')
174 /*********************************************************************
175 * _ungetch (MSVCRT.@)
179 int retval = MSVCRT_EOF;
181 if (c != MSVCRT_EOF && __MSVCRT_console_buffer == MSVCRT_EOF)
182 retval = __MSVCRT_console_buffer = c;
187 /*********************************************************************
195 if (__MSVCRT_console_buffer != MSVCRT_EOF)
199 /* FIXME: There has to be a faster way than this in Win32.. */
200 INPUT_RECORD *ir = NULL;
203 GetNumberOfConsoleInputEvents(MSVCRT_console_in, &count);
205 if (count && (ir = MSVCRT_malloc(count * sizeof(INPUT_RECORD))) &&
206 PeekConsoleInputA(MSVCRT_console_in, ir, count, &count))
207 for(i = 0; i < count - 1; i++)
209 if (ir[i].EventType == KEY_EVENT &&
210 ir[i].Event.KeyEvent.bKeyDown &&
211 ir[i].Event.KeyEvent.uChar.AsciiChar)
225 /*********************************************************************
226 * _cprintf (MSVCRT.@)
228 int _cprintf(const char* format, ...)
230 char buf[2048], *mem = buf;
231 int written, resize = sizeof(buf), retval;
234 va_start( valist, format );
235 /* There are two conventions for snprintf failing:
236 * Return -1 if we truncated, or
237 * Return the number of bytes that would have been written
238 * The code below handles both cases
240 while ((written = _snprintf( mem, resize, format, valist )) == -1 ||
243 resize = (written == -1 ? resize * 2 : written + 1);
246 if (!(mem = (char *)MSVCRT_malloc(resize)))
248 va_start( valist, format );
252 retval = _cputs( mem );