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Added detection of redirection. GetStdHandle() used instead of CreateFile(). Error message is shown to user when it tries to redirect.

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svn path=/trunk/; revision=1879
This commit is contained in:
Nedko Arnaudov 2001-05-03 22:41:16 +00:00
parent 278ce6bf50
commit d9776acd0c
2 changed files with 40 additions and 17 deletions
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42
rosapps/sysutils/regexpl/Console.cpp
View file

@ -1,4 +1,4 @@
/* $Id: Console.cpp,v 1.4 2001/01/13 23:54:07 narnaoud Exp $ /* $Id: Console.cpp,v 1.5 2001/05/03 22:41:16 narnaoud Exp $
* *
* regexpl - Console Registry Explorer * regexpl - Console Registry Explorer
* *
@ -864,38 +864,60 @@ TCHAR * CConsole::Init(DWORD dwBufferSize, DWORD dwMaxHistoryLines)
if (m_hStdIn != INVALID_HANDLE_VALUE) VERIFY(CloseHandle(m_hStdIn)); if (m_hStdIn != INVALID_HANDLE_VALUE) VERIFY(CloseHandle(m_hStdIn));
if (m_hStdOut != INVALID_HANDLE_VALUE) VERIFY(CloseHandle(m_hStdOut)); if (m_hStdOut != INVALID_HANDLE_VALUE) VERIFY(CloseHandle(m_hStdOut));
m_hStdIn = CreateFile("CONIN$",GENERIC_READ | GENERIC_WRITE,FILE_SHARE_READ | FILE_SHARE_WRITE,NULL,OPEN_EXISTING,0,NULL); m_hStdIn = GetStdHandle(STD_INPUT_HANDLE);
//m_hStdIn = GetStdHandle(STD_INPUT_HANDLE);
if (m_hStdIn == INVALID_HANDLE_VALUE)
goto Abort;
m_hStdOut = CreateFile("CONOUT$",GENERIC_READ | GENERIC_WRITE,FILE_SHARE_READ | FILE_SHARE_WRITE,NULL,OPEN_EXISTING,0,NULL); if (m_hStdIn == INVALID_HANDLE_VALUE)
//m_hStdOut = GetStdHandle(STD_OUTPUT_HANDLE); {
if (m_hStdOut == INVALID_HANDLE_VALUE) // _ftprintf(stderr,_T("GetStdHandle(STD_INPUT_HANDLE) failed. GetLastError return 0x%X\n"),(unsigned)GetLastError());
goto Abort; goto Abort;
}
m_hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
if (m_hStdOut == INVALID_HANDLE_VALUE)
{
// _ftprintf(stderr,_T("GetStdHandle(STD_OUTPUT_HANDLE) failed. GetLastError return 0x%X\n"),(unsigned)GetLastError());
goto Abort;
}
CONSOLE_SCREEN_BUFFER_INFO info; CONSOLE_SCREEN_BUFFER_INFO info;
if (!GetConsoleScreenBufferInfo(m_hStdOut,&info)) if (!GetConsoleScreenBufferInfo(m_hStdOut,&info))
{
// _ftprintf(stderr,_T("GetConsoleScreenBufferInfo(m_hStdOut,&info) failed. GetLastError return 0x%X\n"),(unsigned)GetLastError());
if (GetLastError() == 6) // redirected output
_ftprintf(stderr,_T("Redirection is not supported.\n"));
goto Abort; goto Abort;
}
m_wAttributes = info.wAttributes; m_wAttributes = info.wAttributes;
if (!m_blnOldInputModeSaved) if (!m_blnOldInputModeSaved)
{ {
if (!GetConsoleMode(m_hStdIn,&m_dwOldInputMode)) if (!GetConsoleMode(m_hStdIn,&m_dwOldInputMode))
{
if (GetLastError() == 6) // redirected input
_ftprintf(stderr,_T("Redirection is not supported.\n"));
// _ftprintf(stderr,_T("GetConsoleMode(0x%X,&m_dwOldINputMode) failed. GetLastError() returns 0x%X\n"),(int)m_hStdIn,GetLastError());
goto Abort; goto Abort;
}
m_blnOldInputModeSaved = TRUE; m_blnOldInputModeSaved = TRUE;
} }
// _ftprintf(stderr,_T("Calling GetConsoleMode(0x%X,&m_dwOldOutputMode) ...\n"),(int)m_hStdOut);
if (!m_blnOldOutputModeSaved) if (!m_blnOldOutputModeSaved)
{ {
if (!GetConsoleMode(m_hStdOut,&m_dwOldOutputMode)) if (!GetConsoleMode(m_hStdOut,&m_dwOldOutputMode))
goto Abort; goto Abort;
// _ftprintf(stderr,_T("Calling GetConsoleMode(0x%X,&m_dwOldOutputMode) done.\n"),(int)m_hStdOut);
m_blnOldOutputModeSaved = TRUE; m_blnOldOutputModeSaved = TRUE;
} }
if (!SetConsoleMode(m_hStdIn,0)) goto Abort; // _ftprintf(stderr,_T("Calling SetConsoleMode(0x%X,0) ...\n"),(int)m_hStdIn);
if (!SetConsoleMode(m_hStdOut,0)) goto Abort; if (!SetConsoleMode(m_hStdIn,0))
goto Abort;
if (!SetConsoleMode(m_hStdOut,0))
goto Abort;
m_CursorPosition = info.dwCursorPosition; m_CursorPosition = info.dwCursorPosition;
m_BufferSize = info.dwSize; m_BufferSize = info.dwSize;

15
rosapps/sysutils/regexpl/RegistryExplorer.cpp
View file

@ -1,4 +1,4 @@
/* $Id: RegistryExplorer.cpp,v 1.7 2001/04/24 22:53:00 narnaoud Exp $ /* $Id: RegistryExplorer.cpp,v 1.8 2001/05/03 22:41:16 narnaoud Exp $
* *
* regexpl - Console Registry Explorer * regexpl - Console Registry Explorer
* *
@ -172,12 +172,13 @@ int main ()
TCHAR *pchCommand; TCHAR *pchCommand;
pchCommand = Console.Init(INPUT_BUFFER_SIZE,10); pchCommand = Console.Init(INPUT_BUFFER_SIZE,10);
if (pchCommand == NULL) if (pchCommand == NULL)
{ {
_ftprintf(stderr,_T("Cannot initialize console.\n")); _ftprintf(stderr,_T("Cannot initialize console.\n"));
goto Abort; nRetCode = 1;
} goto Exit;
}
Console.SetReplaceCompletionCallback(CompletionCallback); Console.SetReplaceCompletionCallback(CompletionCallback);