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[TELNET]

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Don't attempt to close undefined handles.
Also properly set them on failure as "the contents of the output parameters are indeterminate" on failure.

svn path=/trunk/; revision=58701
This commit is contained in:
Pierre Schweitzer 2013-04-06 23:27:56 +00:00
parent 33a4bc0181
commit 5576d21588
1 changed files with 15 additions and 9 deletions
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24
reactos/base/applications/network/telnet/src/tnmisc.cpp
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@ -8,9 +8,9 @@ BOOL CreateHiddenConsoleProcess(LPCTSTR szChildName, PROCESS_INFORMATION* ppi,
BOOL fCreated;
STARTUPINFO si;
SECURITY_ATTRIBUTES sa;
HANDLE hInRead;
HANDLE hOutWrite;
HANDLE hErrWrite;
HANDLE hInRead = INVALID_HANDLE_VALUE;
HANDLE hOutWrite = INVALID_HANDLE_VALUE;
HANDLE hErrWrite = INVALID_HANDLE_VALUE;
// Create pipes
// initialize security attributes for handle inheritance (for WinNT)
@ -19,16 +19,22 @@ BOOL CreateHiddenConsoleProcess(LPCTSTR szChildName, PROCESS_INFORMATION* ppi,
sa.lpSecurityDescriptor = NULL;
// create STDIN pipe
if( !CreatePipe( &hInRead, phInWrite, &sa, 0 ))
if( !CreatePipe( &hInRead, phInWrite, &sa, 0 )) {
hInRead = INVALID_HANDLE_VALUE;
goto error;
}
// create STDOUT pipe
if( !CreatePipe( phOutRead, &hOutWrite, &sa, 0 ))
if( !CreatePipe( phOutRead, &hOutWrite, &sa, 0 )) {
hOutWrite = INVALID_HANDLE_VALUE;
goto error;
}
// create STDERR pipe
if( !CreatePipe( phErrRead, &hErrWrite, &sa, 0 ))
if( !CreatePipe( phErrRead, &hErrWrite, &sa, 0 )) {
hErrWrite = INVALID_HANDLE_VALUE;
goto error;
}
// process startup information
memset( &si, 0, sizeof( si ));
@ -63,9 +69,9 @@ BOOL CreateHiddenConsoleProcess(LPCTSTR szChildName, PROCESS_INFORMATION* ppi,
return TRUE;
error:
CloseHandle( hInRead );
CloseHandle( hOutWrite );
CloseHandle( hErrWrite );
if (hInRead != INVALID_HANDLE_VALUE) CloseHandle( hInRead );
if (hOutWrite != INVALID_HANDLE_VALUE) CloseHandle( hOutWrite );
if (hErrWrite != INVALID_HANDLE_VALUE) CloseHandle( hErrWrite );
CloseHandle( ppi->hProcess );
CloseHandle( ppi->hThread );