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wine/dlls/msvcrt/console.c

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/*
* msvcrt.dll console functions
*
* Copyright 2000 Jon Griffiths
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
* Note: init and free don't need MT locking since they are called at DLL
* (de)attachment time, which is syncronised for us
*/
#include "msvcrt.h"
#include "wincon.h"
#include "mtdll.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
/* MT */
#define LOCK_CONSOLE _mlock(_CONIO_LOCK)
#define UNLOCK_CONSOLE _munlock(_CONIO_LOCK)
static HANDLE MSVCRT_console_in = INVALID_HANDLE_VALUE;
static HANDLE MSVCRT_console_out= INVALID_HANDLE_VALUE;
static int __MSVCRT_console_buffer = MSVCRT_EOF;
/* INTERNAL: Initialise console handles */
void msvcrt_init_console(void)
{
TRACE(":Opening console handles\n");
MSVCRT_console_in = CreateFileA("CONIN$", GENERIC_READ, FILE_SHARE_READ,
NULL, OPEN_EXISTING, 0, NULL);
MSVCRT_console_out= CreateFileA("CONOUT$", GENERIC_WRITE, FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, 0, NULL);
if ((MSVCRT_console_in == INVALID_HANDLE_VALUE) ||
(MSVCRT_console_out== INVALID_HANDLE_VALUE))
WARN(":Console handle Initialisation FAILED!\n");
}
/* INTERNAL: Free console handles */
void msvcrt_free_console(void)
{
TRACE(":Closing console handles\n");
CloseHandle(MSVCRT_console_in);
CloseHandle(MSVCRT_console_out);
}
/*********************************************************************
* _cputs (MSVCRT.@)
*/
int CDECL _cputs(const char* str)
{
DWORD count;
int retval = MSVCRT_EOF;
LOCK_CONSOLE;
if (WriteConsoleA(MSVCRT_console_out, str, strlen(str), &count, NULL)
&& count == 1)
retval = 0;
UNLOCK_CONSOLE;
return retval;
}
#define NORMAL_CHAR 0
#define ALT_CHAR 1
#define CTRL_CHAR 2
#define SHIFT_CHAR 3
static const struct {unsigned vk; unsigned ch[4][2];} enh_map[] = {
{0x47, {{0xE0, 0x47}, {0x00, 0x97}, {0xE0, 0x77}, {0xE0, 0x47}}},
{0x48, {{0xE0, 0x48}, {0x00, 0x98}, {0xE0, 0x8D}, {0xE0, 0x48}}},
{0x49, {{0xE0, 0x49}, {0x00, 0x99}, {0xE0, 0x86}, {0xE0, 0x49}}},
{0x4B, {{0xE0, 0x4B}, {0x00, 0x9B}, {0xE0, 0x73}, {0xE0, 0x4B}}},
{0x4D, {{0xE0, 0x4D}, {0x00, 0x9D}, {0xE0, 0x74}, {0xE0, 0x4D}}},
{0x4F, {{0xE0, 0x4F}, {0x00, 0x9F}, {0xE0, 0x75}, {0xE0, 0x4F}}},
{0x50, {{0xE0, 0x50}, {0x00, 0xA0}, {0xE0, 0x91}, {0xE0, 0x50}}},
{0x51, {{0xE0, 0x51}, {0x00, 0xA1}, {0xE0, 0x76}, {0xE0, 0x51}}},
{0x52, {{0xE0, 0x52}, {0x00, 0xA2}, {0xE0, 0x92}, {0xE0, 0x52}}},
{0x53, {{0xE0, 0x53}, {0x00, 0xA3}, {0xE0, 0x93}, {0xE0, 0x53}}},
};
/*********************************************************************
* _getch (MSVCRT.@)
*/
int CDECL _getch(void)
{
int retval = MSVCRT_EOF;
LOCK_CONSOLE;
if (__MSVCRT_console_buffer != MSVCRT_EOF)
{
retval = __MSVCRT_console_buffer;
__MSVCRT_console_buffer = MSVCRT_EOF;
}
else
{
INPUT_RECORD ir;
DWORD count;
DWORD mode = 0;
GetConsoleMode(MSVCRT_console_in, &mode);
if(mode)
SetConsoleMode(MSVCRT_console_in, 0);
do {
if (ReadConsoleInputA(MSVCRT_console_in, &ir, 1, &count))
{
unsigned int i;
/* Only interested in ASCII chars */
if (ir.EventType == KEY_EVENT &&
ir.Event.KeyEvent.bKeyDown)
{
if (ir.Event.KeyEvent.uChar.AsciiChar)
{
retval = ir.Event.KeyEvent.uChar.AsciiChar;
break;
}
for (i = 0; i < sizeof(enh_map) / sizeof(enh_map[0]); i++)
{
if (ir.Event.KeyEvent.wVirtualScanCode == enh_map[i].vk) break;
}
if (i < sizeof(enh_map) / sizeof(enh_map[0]))
{
unsigned idx;
if (ir.Event.KeyEvent.dwControlKeyState & (LEFT_ALT_PRESSED | RIGHT_ALT_PRESSED))
idx = ALT_CHAR;
else if (ir.Event.KeyEvent.dwControlKeyState & (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED) )
idx = CTRL_CHAR;
else if (ir.Event.KeyEvent.dwControlKeyState & SHIFT_PRESSED)
idx = SHIFT_CHAR;
else
idx = NORMAL_CHAR;
retval = enh_map[i].ch[idx][0];
__MSVCRT_console_buffer = enh_map[i].ch[idx][1];
break;
}
WARN("Unmapped char keyState=%x vk=%x\n",
ir.Event.KeyEvent.dwControlKeyState, ir.Event.KeyEvent.wVirtualScanCode);
}
}
else
break;
} while(1);
if (mode)
SetConsoleMode(MSVCRT_console_in, mode);
}
UNLOCK_CONSOLE;
return retval;
}
/*********************************************************************
* _putch (MSVCRT.@)
*/
int CDECL _putch(int c)
{
int retval = MSVCRT_EOF;
DWORD count;
LOCK_CONSOLE;
if (WriteConsoleA(MSVCRT_console_out, &c, 1, &count, NULL) && count == 1)
retval = c;
UNLOCK_CONSOLE;
return retval;
}
/*********************************************************************
* _getche (MSVCRT.@)
*/
int CDECL _getche(void)
{
int retval;
LOCK_CONSOLE;
retval = _getch();
if (retval != MSVCRT_EOF)
retval = _putch(retval);
UNLOCK_CONSOLE;
return retval;
}
/*********************************************************************
* _cgets (MSVCRT.@)
*/
char* CDECL _cgets(char* str)
{
char *buf = str + 2;
DWORD got;
DWORD conmode = 0;
TRACE("(%p)\n", str);
str[1] = 0; /* Length */
LOCK_CONSOLE;
GetConsoleMode(MSVCRT_console_in, &conmode);
SetConsoleMode(MSVCRT_console_in, ENABLE_LINE_INPUT|ENABLE_ECHO_INPUT|ENABLE_PROCESSED_INPUT);
if(ReadConsoleA(MSVCRT_console_in, buf, str[0], &got, NULL)) {
if(buf[got-2] == '\r') {
buf[got-2] = 0;
str[1] = got-2;
}
else if(got == 1 && buf[got-1] == '\n') {
buf[0] = 0;
str[1] = 0;
}
else if(got == str[0] && buf[got-1] == '\r') {
buf[got-1] = 0;
str[1] = got-1;
}
else
str[1] = got;
}
else
buf = NULL;
SetConsoleMode(MSVCRT_console_in, conmode);
UNLOCK_CONSOLE;
return buf;
}
/*********************************************************************
* _ungetch (MSVCRT.@)
*/
int CDECL _ungetch(int c)
{
int retval = MSVCRT_EOF;
LOCK_CONSOLE;
if (c != MSVCRT_EOF && __MSVCRT_console_buffer == MSVCRT_EOF)
retval = __MSVCRT_console_buffer = c;
UNLOCK_CONSOLE;
return retval;
}
/*********************************************************************
* _kbhit (MSVCRT.@)
*/
int CDECL _kbhit(void)
{
int retval = 0;
LOCK_CONSOLE;
if (__MSVCRT_console_buffer != MSVCRT_EOF)
retval = 1;
else
{
/* FIXME: There has to be a faster way than this in Win32.. */
INPUT_RECORD *ir = NULL;
DWORD count = 0, i;
GetNumberOfConsoleInputEvents(MSVCRT_console_in, &count);
if (count && (ir = MSVCRT_malloc(count * sizeof(INPUT_RECORD))) &&
PeekConsoleInputA(MSVCRT_console_in, ir, count, &count))
for(i = 0; i < count - 1; i++)
{
if (ir[i].EventType == KEY_EVENT &&
ir[i].Event.KeyEvent.bKeyDown &&
ir[i].Event.KeyEvent.uChar.AsciiChar)
{
retval = 1;
break;
}
}
MSVCRT_free(ir);
}
UNLOCK_CONSOLE;
return retval;
}
/*********************************************************************
* _cprintf (MSVCRT.@)
*/
int CDECL _cprintf(const char* format, ...)
{
char buf[2048], *mem = buf;
int written, resize = sizeof(buf), retval;
__ms_va_list valist;
__ms_va_start( valist, format );
/* There are two conventions for snprintf failing:
* Return -1 if we truncated, or
* Return the number of bytes that would have been written
* The code below handles both cases
*/
while ((written = MSVCRT_vsnprintf( mem, resize, format, valist )) == -1 ||
written > resize)
{
resize = (written == -1 ? resize * 2 : written + 1);
if (mem != buf)
MSVCRT_free (mem);
if (!(mem = MSVCRT_malloc(resize)))
return MSVCRT_EOF;
__ms_va_start( valist, format );
}
__ms_va_end(valist);
LOCK_CONSOLE;
retval = _cputs( mem );
UNLOCK_CONSOLE;
if (mem != buf)
MSVCRT_free (mem);
return retval;
}
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