mirror of
https://github.com/reactos/reactos.git
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713 lines
16 KiB
C
713 lines
16 KiB
C
/*
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* MISC.C - misc. functions.
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*
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*
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* History:
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*
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* 07/12/98 (Rob Lake)
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* started
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*
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* 07/13/98 (Rob Lake)
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* moved functions in here
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*
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* 27-Jul-1998 (John P Price <linux-guru@gcfl.net>)
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* added config.h include
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*
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* 18-Dec-1998 (Eric Kohl)
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* Changed split() to accept quoted arguments.
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* Removed parse_firstarg().
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*
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* 23-Jan-1999 (Eric Kohl)
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* Fixed an ugly bug in split(). In rare cases (last character
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* of the string is a space) it ignored the NULL character and
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* tried to add the following to the argument list.
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*
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* 28-Jan-1999 (Eric Kohl)
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* FileGetString() seems to be working now.
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*
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* 06-Nov-1999 (Eric Kohl)
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* Added PagePrompt() and FilePrompt().
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*
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* 30-Apr-2005 (Magnus Olsen <magnus@greatlord.com>)
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* Remove all hardcoded strings in En.rc
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*/
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#include "precomp.h"
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/*
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* get a character out-of-band and honor Ctrl-Break characters
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*/
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TCHAR
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cgetchar (VOID)
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{
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HANDLE hInput = GetStdHandle (STD_INPUT_HANDLE);
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INPUT_RECORD irBuffer;
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DWORD dwRead;
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do
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{
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ReadConsoleInput (hInput, &irBuffer, 1, &dwRead);
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if ((irBuffer.EventType == KEY_EVENT) &&
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(irBuffer.Event.KeyEvent.bKeyDown != FALSE))
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{
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if (irBuffer.Event.KeyEvent.dwControlKeyState &
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(LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED))
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{
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if (irBuffer.Event.KeyEvent.wVirtualKeyCode == 'C')
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{
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bCtrlBreak = TRUE;
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break;
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}
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}
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else if ((irBuffer.Event.KeyEvent.wVirtualKeyCode == VK_SHIFT) ||
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(irBuffer.Event.KeyEvent.wVirtualKeyCode == VK_MENU) ||
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(irBuffer.Event.KeyEvent.wVirtualKeyCode == VK_CONTROL))
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{
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// Nothing to do
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}
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else
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{
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break;
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}
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}
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}
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while (TRUE);
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#ifndef _UNICODE
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return irBuffer.Event.KeyEvent.uChar.AsciiChar;
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#else
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return irBuffer.Event.KeyEvent.uChar.UnicodeChar;
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#endif /* _UNICODE */
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}
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/*
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* Takes a path in and returns it with the correct case of the letters
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*/
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VOID GetPathCase( TCHAR * Path, TCHAR * OutPath)
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{
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UINT i = 0;
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TCHAR TempPath[MAX_PATH];
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WIN32_FIND_DATA FindFileData;
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HANDLE hFind;
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_tcscpy(TempPath, _T(""));
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_tcscpy(OutPath, _T(""));
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for(i = 0; i < _tcslen(Path); i++)
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{
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if (Path[i] != _T('\\'))
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{
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_tcsncat(TempPath, &Path[i], 1);
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if (i != _tcslen(Path) - 1)
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continue;
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}
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/* Handle the base part of the path different.
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Because if you put it into findfirstfile, it will
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return your current folder */
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if (_tcslen(TempPath) == 2 && TempPath[1] == _T(':'))
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{
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_tcscat(OutPath, TempPath);
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_tcscat(OutPath, _T("\\"));
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_tcscat(TempPath, _T("\\"));
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}
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else
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{
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hFind = FindFirstFile(TempPath,&FindFileData);
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if (hFind == INVALID_HANDLE_VALUE)
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{
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_tcscpy(OutPath, Path);
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return;
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}
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_tcscat(TempPath, _T("\\"));
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_tcscat(OutPath, FindFileData.cFileName);
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_tcscat(OutPath, _T("\\"));
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FindClose(hFind);
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}
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}
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}
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/*
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* Check if Ctrl-Break was pressed during the last calls
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*/
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BOOL CheckCtrlBreak (INT mode)
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{
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static BOOL bLeaveAll = FALSE; /* leave all batch files */
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TCHAR options[4]; /* Yes, No, All */
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TCHAR c;
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switch (mode)
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{
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case BREAK_OUTOFBATCH:
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bLeaveAll = 0;
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return FALSE;
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case BREAK_BATCHFILE:
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if (bLeaveAll)
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return TRUE;
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if (!bCtrlBreak)
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return FALSE;
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LoadString(CMD_ModuleHandle, STRING_COPY_OPTION, options, ARRAYSIZE(options));
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/* we need to be sure the string arrives on the screen! */
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do
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{
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ConOutResPuts(STRING_CANCEL_BATCH_FILE);
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c = _totupper(cgetchar());
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} while (!(_tcschr(options, c) || c == _T('\3')) || !c);
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ConOutChar(_T('\n'));
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if (c == options[1])
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return bCtrlBreak = FALSE; /* ignore */
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/* leave all batch files */
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bLeaveAll = ((c == options[2]) || (c == _T('\3')));
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break;
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case BREAK_INPUT:
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if (!bCtrlBreak)
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return FALSE;
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break;
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}
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/* state processed */
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bCtrlBreak = FALSE;
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return TRUE;
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}
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/* add new entry for new argument */
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BOOL add_entry (LPINT ac, LPTSTR **arg, LPCTSTR entry)
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{
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LPTSTR q;
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LPTSTR *oldarg;
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q = cmd_alloc ((_tcslen(entry) + 1) * sizeof (TCHAR));
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if (NULL == q)
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{
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return FALSE;
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}
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_tcscpy (q, entry);
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oldarg = *arg;
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*arg = cmd_realloc (oldarg, (*ac + 2) * sizeof (LPTSTR));
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if (NULL == *arg)
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{
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cmd_free (q);
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*arg = oldarg;
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return FALSE;
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}
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/* save new entry */
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(*arg)[*ac] = q;
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(*arg)[++(*ac)] = NULL;
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return TRUE;
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}
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static BOOL expand (LPINT ac, LPTSTR **arg, LPCTSTR pattern)
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{
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HANDLE hFind;
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WIN32_FIND_DATA FindData;
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BOOL ok;
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LPCTSTR pathend;
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LPTSTR dirpart, fullname;
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pathend = _tcsrchr (pattern, _T('\\'));
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if (NULL != pathend)
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{
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dirpart = cmd_alloc((pathend - pattern + 2) * sizeof(TCHAR));
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if (NULL == dirpart)
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{
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return FALSE;
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}
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memcpy(dirpart, pattern, pathend - pattern + 1);
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dirpart[pathend - pattern + 1] = _T('\0');
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}
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else
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{
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dirpart = NULL;
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}
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hFind = FindFirstFile (pattern, &FindData);
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if (INVALID_HANDLE_VALUE != hFind)
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{
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do
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{
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if (NULL != dirpart)
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{
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fullname = cmd_alloc((_tcslen(dirpart) + _tcslen(FindData.cFileName) + 1) * sizeof(TCHAR));
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if (NULL == fullname)
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{
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ok = FALSE;
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}
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else
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{
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_tcscat (_tcscpy (fullname, dirpart), FindData.cFileName);
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ok = add_entry(ac, arg, fullname);
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cmd_free (fullname);
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}
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}
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else
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{
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ok = add_entry(ac, arg, FindData.cFileName);
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}
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} while (FindNextFile (hFind, &FindData) && ok);
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FindClose (hFind);
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}
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else
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{
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ok = add_entry(ac, arg, pattern);
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}
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if (NULL != dirpart)
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{
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cmd_free (dirpart);
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}
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return ok;
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}
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/*
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* split - splits a line up into separate arguments, delimiters
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* are spaces and slashes ('/').
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*/
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LPTSTR *split (LPTSTR s, LPINT args, BOOL expand_wildcards, BOOL handle_plus)
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{
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LPTSTR *arg;
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LPTSTR start;
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LPTSTR q;
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INT ac;
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INT_PTR len;
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arg = cmd_alloc (sizeof (LPTSTR));
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if (!arg)
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return NULL;
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*arg = NULL;
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ac = 0;
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while (*s)
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{
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BOOL bQuoted = FALSE;
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/* skip leading spaces */
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while (*s && (_istspace(*s) || _istcntrl(*s)))
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++s;
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start = s;
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/* the first character can be '/' */
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if (*s == _T('/'))
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++s;
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/* skip to next word delimiter or start of next option */
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while (_istprint(*s))
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{
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/* if quote (") then set bQuoted */
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bQuoted ^= (*s == _T('\"'));
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/* Check if we have unquoted text */
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if (!bQuoted)
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{
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/* check for separators */
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if (_istspace(*s) ||
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(*s == _T('/')) ||
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(handle_plus && (*s == _T('+'))))
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{
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/* Make length at least one character */
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if (s == start) s++;
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break;
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}
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}
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++s;
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}
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/* a word was found */
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if (s != start)
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{
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q = cmd_alloc (((len = s - start) + 1) * sizeof (TCHAR));
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if (!q)
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{
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return NULL;
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}
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memcpy (q, start, len * sizeof (TCHAR));
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q[len] = _T('\0');
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StripQuotes(q);
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if (expand_wildcards && (_T('/') != *start) &&
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(NULL != _tcschr(q, _T('*')) || NULL != _tcschr(q, _T('?'))))
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{
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if (! expand(&ac, &arg, q))
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{
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cmd_free (q);
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freep (arg);
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return NULL;
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}
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}
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else
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{
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if (! add_entry(&ac, &arg, q))
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{
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cmd_free (q);
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freep (arg);
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return NULL;
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}
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}
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cmd_free (q);
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}
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}
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*args = ac;
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return arg;
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}
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/*
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* splitspace() is a function which uses JUST spaces as delimiters. split() uses "/" AND spaces.
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* The way it works is real similar to split(), search the difference ;)
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* splitspace is needed for commands such as "move" where paths as C:\this/is\allowed/ are allowed
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*/
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LPTSTR *splitspace (LPTSTR s, LPINT args)
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{
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LPTSTR *arg;
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LPTSTR start;
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LPTSTR q;
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INT ac;
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INT_PTR len;
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arg = cmd_alloc (sizeof (LPTSTR));
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if (!arg)
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return NULL;
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*arg = NULL;
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ac = 0;
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while (*s)
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{
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BOOL bQuoted = FALSE;
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/* skip leading spaces */
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while (*s && (_istspace (*s) || _istcntrl (*s)))
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++s;
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start = s;
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/* skip to next word delimiter or start of next option */
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while (_istprint(*s) && (bQuoted || !_istspace(*s)))
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{
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/* if quote (") then set bQuoted */
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bQuoted ^= (*s == _T('\"'));
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++s;
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}
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/* a word was found */
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if (s != start)
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{
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q = cmd_alloc (((len = s - start) + 1) * sizeof (TCHAR));
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if (!q)
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{
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return NULL;
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}
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memcpy (q, start, len * sizeof (TCHAR));
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q[len] = _T('\0');
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StripQuotes(q);
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if (! add_entry(&ac, &arg, q))
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{
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cmd_free (q);
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freep (arg);
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return NULL;
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}
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cmd_free (q);
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}
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}
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*args = ac;
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return arg;
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}
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/*
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* freep -- frees memory used for a call to split
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*/
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VOID freep (LPTSTR *p)
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{
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LPTSTR *q;
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if (!p)
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return;
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q = p;
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while (*q)
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cmd_free(*q++);
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cmd_free(p);
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}
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LPTSTR _stpcpy (LPTSTR dest, LPCTSTR src)
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{
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_tcscpy (dest, src);
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return (dest + _tcslen (src));
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}
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VOID
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StripQuotes(TCHAR *in)
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{
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TCHAR *out = in;
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for (; *in; in++)
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{
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if (*in != _T('"'))
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*out++ = *in;
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}
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*out = _T('\0');
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}
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/*
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* Checks if a path is valid (accessible)
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*/
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BOOL IsValidPathName (LPCTSTR pszPath)
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{
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TCHAR szOldPath[MAX_PATH];
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BOOL bResult;
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GetCurrentDirectory (MAX_PATH, szOldPath);
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bResult = SetCurrentDirectory (pszPath);
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SetCurrentDirectory (szOldPath);
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return bResult;
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}
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/*
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* Checks if a file exists (accessible)
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*/
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BOOL IsExistingFile (LPCTSTR pszPath)
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{
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DWORD attr = GetFileAttributes (pszPath);
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return (attr != 0xFFFFFFFF && (! (attr & FILE_ATTRIBUTE_DIRECTORY)) );
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}
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BOOL IsExistingDirectory (LPCTSTR pszPath)
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{
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DWORD attr = GetFileAttributes (pszPath);
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return (attr != 0xFFFFFFFF && (attr & FILE_ATTRIBUTE_DIRECTORY) );
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}
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BOOL FileGetString (HANDLE hFile, LPTSTR lpBuffer, INT nBufferLength)
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{
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LPSTR lpString;
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DWORD dwRead;
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INT len = 0;
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#ifdef _UNICODE
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lpString = cmd_alloc(nBufferLength);
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#else
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lpString = lpBuffer;
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#endif
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if (ReadFile(hFile, lpString, nBufferLength - 1, &dwRead, NULL))
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{
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/* break at new line*/
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CHAR *end = memchr(lpString, '\n', dwRead);
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len = dwRead;
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if (end)
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{
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len = (INT)(end - lpString) + 1;
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SetFilePointer(hFile, len - dwRead, NULL, FILE_CURRENT);
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}
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}
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if (!len)
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{
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#ifdef _UNICODE
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cmd_free(lpString);
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#endif
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return FALSE;
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}
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lpString[len++] = '\0';
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#ifdef _UNICODE
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MultiByteToWideChar(OutputCodePage, 0, lpString, -1, lpBuffer, len);
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cmd_free(lpString);
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#endif
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return TRUE;
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}
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// See r874
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BOOL __stdcall PagePrompt(PCON_PAGER Pager, DWORD Done, DWORD Total)
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{
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SHORT iScreenWidth, iCursorY;
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INPUT_RECORD ir;
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ConOutResPuts(STRING_MISC_HELP1);
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RemoveBreakHandler();
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ConInDisable();
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do
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{
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ConInKey(&ir);
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}
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while ((ir.Event.KeyEvent.wVirtualKeyCode == VK_SHIFT) ||
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(ir.Event.KeyEvent.wVirtualKeyCode == VK_MENU) ||
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(ir.Event.KeyEvent.wVirtualKeyCode == VK_CONTROL));
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AddBreakHandler();
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ConInEnable();
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/*
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* Get the screen width, erase the full line where the cursor is,
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* and move the cursor back to the beginning of the line.
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*/
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GetScreenSize(&iScreenWidth, NULL);
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iCursorY = GetCursorY();
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SetCursorXY(0, iCursorY);
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while (iScreenWidth-- > 0) // Or call FillConsoleOutputCharacter ?
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ConOutChar(_T(' '));
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SetCursorXY(0, iCursorY);
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if ((ir.Event.KeyEvent.wVirtualKeyCode == VK_ESCAPE) ||
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((ir.Event.KeyEvent.wVirtualKeyCode == _T('C')) &&
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(ir.Event.KeyEvent.dwControlKeyState & (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED))))
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{
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/* We break, output a newline */
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ConOutChar(_T('\n'));
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bCtrlBreak = TRUE;
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return FALSE;
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}
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return TRUE;
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}
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INT FilePromptYN (UINT resID)
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{
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TCHAR szMsg[RC_STRING_MAX_SIZE];
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// TCHAR cKey = 0;
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// LPTSTR szKeys = _T("yna");
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TCHAR szIn[10];
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LPTSTR p;
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if (resID != 0)
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ConOutResPrintf (resID);
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/* preliminary fix */
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ConInString(szIn, 10);
|
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ConOutChar(_T('\n'));
|
|
|
|
_tcsupr (szIn);
|
|
for (p = szIn; _istspace (*p); p++)
|
|
;
|
|
|
|
LoadString(CMD_ModuleHandle, STRING_CHOICE_OPTION, szMsg, ARRAYSIZE(szMsg));
|
|
|
|
if (_tcsncmp(p, &szMsg[0], 1) == 0)
|
|
return PROMPT_YES;
|
|
else if (_tcsncmp(p, &szMsg[1], 1) == 0)
|
|
return PROMPT_NO;
|
|
#if 0
|
|
else if (*p == _T('\03'))
|
|
return PROMPT_BREAK;
|
|
#endif
|
|
|
|
return PROMPT_NO;
|
|
|
|
/* unfinished solution */
|
|
#if 0
|
|
RemoveBreakHandler();
|
|
ConInDisable();
|
|
|
|
do
|
|
{
|
|
ConInKey (&ir);
|
|
cKey = _totlower (ir.Event.KeyEvent.uChar.AsciiChar);
|
|
if (_tcschr (szKeys, cKey[0]) == NULL)
|
|
cKey = 0;
|
|
|
|
|
|
}
|
|
while ((ir.Event.KeyEvent.wVirtualKeyCode == VK_SHIFT) ||
|
|
(ir.Event.KeyEvent.wVirtualKeyCode == VK_MENU) ||
|
|
(ir.Event.KeyEvent.wVirtualKeyCode == VK_CONTROL));
|
|
|
|
AddBreakHandler();
|
|
ConInEnable();
|
|
|
|
if ((ir.Event.KeyEvent.wVirtualKeyCode == VK_ESCAPE) ||
|
|
((ir.Event.KeyEvent.wVirtualKeyCode == 'C') &&
|
|
(ir.Event.KeyEvent.dwControlKeyState & (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED))))
|
|
return PROMPT_BREAK;
|
|
|
|
return PROMPT_YES;
|
|
#endif
|
|
}
|
|
|
|
|
|
INT FilePromptYNA (UINT resID)
|
|
{
|
|
TCHAR szMsg[RC_STRING_MAX_SIZE];
|
|
// TCHAR cKey = 0;
|
|
// LPTSTR szKeys = _T("yna");
|
|
|
|
TCHAR szIn[10];
|
|
LPTSTR p;
|
|
|
|
if (resID != 0)
|
|
ConOutResPrintf (resID);
|
|
|
|
/* preliminary fix */
|
|
ConInString(szIn, 10);
|
|
ConOutChar(_T('\n'));
|
|
|
|
_tcsupr (szIn);
|
|
for (p = szIn; _istspace (*p); p++)
|
|
;
|
|
|
|
LoadString( CMD_ModuleHandle, STRING_COPY_OPTION, szMsg, ARRAYSIZE(szMsg));
|
|
|
|
if (_tcsncmp(p, &szMsg[0], 1) == 0)
|
|
return PROMPT_YES;
|
|
else if (_tcsncmp(p, &szMsg[1], 1) == 0)
|
|
return PROMPT_NO;
|
|
else if (_tcsncmp(p, &szMsg[2], 1) == 0)
|
|
return PROMPT_ALL;
|
|
#if 0
|
|
else if (*p == _T('\03'))
|
|
return PROMPT_BREAK;
|
|
#endif
|
|
|
|
return PROMPT_NO;
|
|
|
|
/* unfinished solution */
|
|
#if 0
|
|
RemoveBreakHandler();
|
|
ConInDisable();
|
|
|
|
do
|
|
{
|
|
ConInKey (&ir);
|
|
cKey = _totlower (ir.Event.KeyEvent.uChar.AsciiChar);
|
|
if (_tcschr (szKeys, cKey[0]) == NULL)
|
|
cKey = 0;
|
|
}
|
|
while ((ir.Event.KeyEvent.wVirtualKeyCode == VK_SHIFT) ||
|
|
(ir.Event.KeyEvent.wVirtualKeyCode == VK_MENU) ||
|
|
(ir.Event.KeyEvent.wVirtualKeyCode == VK_CONTROL));
|
|
|
|
AddBreakHandler();
|
|
ConInEnable();
|
|
|
|
if ((ir.Event.KeyEvent.wVirtualKeyCode == VK_ESCAPE) ||
|
|
((ir.Event.KeyEvent.wVirtualKeyCode == _T('C')) &&
|
|
(ir.Event.KeyEvent.dwControlKeyState & (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED))))
|
|
return PROMPT_BREAK;
|
|
|
|
return PROMPT_YES;
|
|
#endif
|
|
}
|
|
|
|
/* EOF */
|