reactos/base/shell/cmd/console.c

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/*
* CONSOLE.C - console input/output functions.
*
*
* History:
*
* 20-Jan-1999 (Eric Kohl)
* started
*
* 03-Apr-2005 (Magnus Olsen) <magnus@greatlord.com>)
* Remove all hardcode string to En.rc
*
* 01-Jul-2005 (Brandon Turner) <turnerb7@msu.edu>)
* Added ConPrintfPaging and ConOutPrintfPaging
*
* 02-Feb-2007 (Paolo Devoti) <devotip at gmail.com>)
* Fixed ConPrintfPaging
*/
#include <precomp.h>
#define OUTPUT_BUFFER_SIZE 4096
UINT InputCodePage;
UINT OutputCodePage;
VOID ConInDisable (VOID)
{
HANDLE hInput = GetStdHandle (STD_INPUT_HANDLE);
DWORD dwMode;
GetConsoleMode (hInput, &dwMode);
dwMode &= ~ENABLE_PROCESSED_INPUT;
SetConsoleMode (hInput, dwMode);
}
VOID ConInEnable (VOID)
{
HANDLE hInput = GetStdHandle (STD_INPUT_HANDLE);
DWORD dwMode;
GetConsoleMode (hInput, &dwMode);
dwMode |= ENABLE_PROCESSED_INPUT;
SetConsoleMode (hInput, dwMode);
}
VOID ConInFlush (VOID)
{
FlushConsoleInputBuffer (GetStdHandle (STD_INPUT_HANDLE));
}
VOID ConInKey (PINPUT_RECORD lpBuffer)
{
HANDLE hInput = GetStdHandle (STD_INPUT_HANDLE);
DWORD dwRead;
if (hInput == INVALID_HANDLE_VALUE)
WARN ("Invalid input handle!!!\n");
do
{
ReadConsoleInput (hInput, lpBuffer, 1, &dwRead);
if ((lpBuffer->EventType == KEY_EVENT) &&
(lpBuffer->Event.KeyEvent.bKeyDown == TRUE))
break;
}
while (TRUE);
}
VOID ConInString (LPTSTR lpInput, DWORD dwLength)
{
DWORD dwOldMode;
DWORD dwRead = 0;
HANDLE hFile;
LPTSTR p;
PCHAR pBuf;
#ifdef _UNICODE
pBuf = (PCHAR)cmd_alloc(dwLength - 1);
#else
pBuf = lpInput;
#endif
ZeroMemory (lpInput, dwLength * sizeof(TCHAR));
hFile = GetStdHandle (STD_INPUT_HANDLE);
GetConsoleMode (hFile, &dwOldMode);
SetConsoleMode (hFile, ENABLE_LINE_INPUT | ENABLE_ECHO_INPUT);
ReadFile (hFile, (PVOID)pBuf, dwLength - 1, &dwRead, NULL);
#ifdef _UNICODE
MultiByteToWideChar(InputCodePage, 0, pBuf, dwRead, lpInput, dwLength - 1);
cmd_free(pBuf);
#endif
for (p = lpInput; *p; p++)
{
if (*p == _T('\x0d'))
{
*p = _T('\0');
break;
}
}
SetConsoleMode (hFile, dwOldMode);
}
static VOID ConWrite(TCHAR *str, DWORD len, DWORD nStdHandle)
{
DWORD dwWritten;
HANDLE hOutput = GetStdHandle(nStdHandle);
if (WriteConsole(hOutput, str, len, &dwWritten, NULL))
return;
/* We're writing to a file or pipe instead of the console. Convert the
* string from TCHARs to the desired output format, if the two differ */
if (bUnicodeOutput)
{
#ifndef _UNICODE
WCHAR *buffer = cmd_alloc(len * sizeof(WCHAR));
if (!buffer)
{
error_out_of_memory();
return;
}
len = MultiByteToWideChar(OutputCodePage, 0, str, len, buffer, len, NULL, NULL);
str = (PVOID)buffer;
#endif
WriteFile(hOutput, str, len * sizeof(WCHAR), &dwWritten, NULL);
#ifndef _UNICODE
cmd_free(buffer);
#endif
}
else
{
#ifdef _UNICODE
CHAR *buffer = cmd_alloc(len * MB_LEN_MAX * sizeof(CHAR));
if (!buffer)
{
error_out_of_memory();
return;
}
len = WideCharToMultiByte(OutputCodePage, 0, str, len, buffer, len * MB_LEN_MAX, NULL, NULL);
str = (PVOID)buffer;
#endif
WriteFile(hOutput, str, len, &dwWritten, NULL);
#ifdef _UNICODE
cmd_free(buffer);
#endif
}
}
VOID ConOutChar (TCHAR c)
{
ConWrite(&c, 1, STD_OUTPUT_HANDLE);
}
VOID ConPuts(LPTSTR szText, DWORD nStdHandle)
{
ConWrite(szText, _tcslen(szText), nStdHandle);
ConWrite(_T("\n"), 1, nStdHandle);
}
VOID ConOutResPaging(BOOL NewPage, UINT resID)
{
TCHAR szMsg[RC_STRING_MAX_SIZE];
LoadString(CMD_ModuleHandle, resID, szMsg, RC_STRING_MAX_SIZE);
ConOutPrintfPaging(NewPage, szMsg);
}
VOID ConOutResPuts (UINT resID)
{
TCHAR szMsg[RC_STRING_MAX_SIZE];
LoadString(CMD_ModuleHandle, resID, szMsg, RC_STRING_MAX_SIZE);
ConPuts(szMsg, STD_OUTPUT_HANDLE);
}
VOID ConOutPuts (LPTSTR szText)
{
ConPuts(szText, STD_OUTPUT_HANDLE);
}
VOID ConPrintf(LPTSTR szFormat, va_list arg_ptr, DWORD nStdHandle)
{
TCHAR szOut[OUTPUT_BUFFER_SIZE];
ConWrite(szOut, _vstprintf(szOut, szFormat, arg_ptr), nStdHandle);
}
INT ConPrintfPaging(BOOL NewPage, LPTSTR szFormat, va_list arg_ptr, DWORD nStdHandle)
{
INT len;
CONSOLE_SCREEN_BUFFER_INFO csbi;
TCHAR szOut[OUTPUT_BUFFER_SIZE];
DWORD dwWritten;
HANDLE hOutput = GetStdHandle(nStdHandle);
/* used to count number of lines since last pause */
static int LineCount = 0;
/* used to see how big the screen is */
int ScreenLines = 0;
/* chars since start of line */
int CharSL;
int from = 0, i = 0;
if(NewPage == TRUE)
LineCount = 0;
/* rest LineCount and return if no string have been given */
if (szFormat == NULL)
return 0;
//get the size of the visual screen that can be printed too
if (!GetConsoleScreenBufferInfo(hOutput, &csbi))
{
// we assuming its a file handle
ConPrintf(szFormat, arg_ptr, nStdHandle);
return 0;
}
//subtract 2 to account for "press any key..." and for the blank line at the end of PagePrompt()
ScreenLines = (csbi.srWindow.Bottom - csbi.srWindow.Top) - 4;
CharSL = csbi.dwCursorPosition.X;
//make sure they didnt make the screen to small
if(ScreenLines<4)
{
ConPrintf(szFormat, arg_ptr, nStdHandle);
return 0;
}
len = _vstprintf (szOut, szFormat, arg_ptr);
while (i < len)
{
// Search until the end of a line is reached
if (szOut[i++] != _T('\n') && ++CharSL < csbi.dwSize.X)
continue;
LineCount++;
CharSL=0;
if(LineCount >= ScreenLines)
{
WriteConsole(hOutput, &szOut[from], i-from, &dwWritten, NULL);
from = i;
if(PagePrompt() != PROMPT_YES)
{
return 1;
}
//reset the number of lines being printed
LineCount = 0;
}
}
WriteConsole(hOutput, &szOut[from], i-from, &dwWritten, NULL);
return 0;
}
VOID ConErrFormatMessage (DWORD MessageId, ...)
{
TCHAR szMsg[RC_STRING_MAX_SIZE];
DWORD ret;
LPTSTR text;
va_list arg_ptr;
va_start (arg_ptr, MessageId);
ret = FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
MessageId,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR) &text,
0,
&arg_ptr);
va_end (arg_ptr);
if(ret > 0)
{
ConErrPuts (text);
LocalFree(text);
}
else
{
LoadString(CMD_ModuleHandle, STRING_CONSOLE_ERROR, szMsg, RC_STRING_MAX_SIZE);
ConErrPrintf(szMsg);
}
}
VOID ConOutFormatMessage (DWORD MessageId, ...)
{
TCHAR szMsg[RC_STRING_MAX_SIZE];
DWORD ret;
LPTSTR text;
va_list arg_ptr;
va_start (arg_ptr, MessageId);
ret = FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
MessageId,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR) &text,
0,
&arg_ptr);
va_end (arg_ptr);
if(ret > 0)
{
ConErrPuts (text);
LocalFree(text);
}
else
{
LoadString(CMD_ModuleHandle, STRING_CONSOLE_ERROR, szMsg, RC_STRING_MAX_SIZE);
ConErrPrintf(szMsg);
}
}
VOID ConOutResPrintf (UINT resID, ...)
{
TCHAR szMsg[RC_STRING_MAX_SIZE];
va_list arg_ptr;
va_start (arg_ptr, resID);
LoadString(CMD_ModuleHandle, resID, szMsg, RC_STRING_MAX_SIZE);
ConPrintf(szMsg, arg_ptr, STD_OUTPUT_HANDLE);
va_end (arg_ptr);
}
VOID ConOutPrintf (LPTSTR szFormat, ...)
{
va_list arg_ptr;
va_start (arg_ptr, szFormat);
ConPrintf(szFormat, arg_ptr, STD_OUTPUT_HANDLE);
va_end (arg_ptr);
}
INT ConOutPrintfPaging (BOOL NewPage, LPTSTR szFormat, ...)
{
INT iReturn;
va_list arg_ptr;
va_start (arg_ptr, szFormat);
iReturn = ConPrintfPaging(NewPage, szFormat, arg_ptr, STD_OUTPUT_HANDLE);
va_end (arg_ptr);
return iReturn;
}
VOID ConErrChar (TCHAR c)
{
ConWrite(&c, 1, STD_ERROR_HANDLE);
}
VOID ConErrResPuts (UINT resID)
{
TCHAR szMsg[RC_STRING_MAX_SIZE];
LoadString(CMD_ModuleHandle, resID, szMsg, RC_STRING_MAX_SIZE);
ConPuts(szMsg, STD_ERROR_HANDLE);
}
VOID ConErrPuts (LPTSTR szText)
{
ConPuts(szText, STD_ERROR_HANDLE);
}
VOID ConErrResPrintf (UINT resID, ...)
{
TCHAR szMsg[RC_STRING_MAX_SIZE];
va_list arg_ptr;
va_start (arg_ptr, resID);
LoadString(CMD_ModuleHandle, resID, szMsg, RC_STRING_MAX_SIZE);
ConPrintf(szMsg, arg_ptr, STD_ERROR_HANDLE);
va_end (arg_ptr);
}
VOID ConErrPrintf (LPTSTR szFormat, ...)
{
va_list arg_ptr;
va_start (arg_ptr, szFormat);
ConPrintf(szFormat, arg_ptr, STD_ERROR_HANDLE);
va_end (arg_ptr);
}
VOID SetCursorXY (SHORT x, SHORT y)
{
COORD coPos;
coPos.X = x;
coPos.Y = y;
SetConsoleCursorPosition (GetStdHandle (STD_OUTPUT_HANDLE), coPos);
}
VOID GetCursorXY (PSHORT x, PSHORT y)
{
CONSOLE_SCREEN_BUFFER_INFO csbi;
GetConsoleScreenBufferInfo (GetStdHandle(STD_OUTPUT_HANDLE), &csbi);
*x = csbi.dwCursorPosition.X;
*y = csbi.dwCursorPosition.Y;
}
SHORT GetCursorX (VOID)
{
CONSOLE_SCREEN_BUFFER_INFO csbi;
GetConsoleScreenBufferInfo (GetStdHandle(STD_OUTPUT_HANDLE), &csbi);
return csbi.dwCursorPosition.X;
}
SHORT GetCursorY (VOID)
{
CONSOLE_SCREEN_BUFFER_INFO csbi;
GetConsoleScreenBufferInfo (GetStdHandle(STD_OUTPUT_HANDLE), &csbi);
return csbi.dwCursorPosition.Y;
}
VOID GetScreenSize (PSHORT maxx, PSHORT maxy)
{
CONSOLE_SCREEN_BUFFER_INFO csbi;
if (!GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi))
{
csbi.dwSize.X = 80;
csbi.dwSize.Y = 25;
}
if (maxx)
*maxx = csbi.dwSize.X;
if (maxy)
*maxy = csbi.dwSize.Y;
}
VOID SetCursorType (BOOL bInsert, BOOL bVisible)
{
CONSOLE_CURSOR_INFO cci;
cci.dwSize = bInsert ? 10 : 99;
cci.bVisible = bVisible;
SetConsoleCursorInfo (GetStdHandle (STD_OUTPUT_HANDLE), &cci);
}
/* EOF */