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![Hermès Bélusca-Maïto](/assets/img/avatar_default.png)
CORE-10495 CORE-13672 - Fix the behaviour of the EXIT command, where it set the last errorlevel value ONLY when it was called with the /b switch and otherwise kept the ambient one, instead of always using the value that the user specified on the command-line. - When a batch file has terminated, make the Batch() helper returning the errorlevel value so that, when the batch file has been started with the CALL command, CALL can in turn set the correct errorlevel value. Verified with respect to Windows' cmd.exe.
576 lines
13 KiB
C
576 lines
13 KiB
C
/*
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* INTERNAL.C - command.com internal commands.
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*
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*
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* History:
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*
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* 17/08/94 (Tim Norman)
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* started.
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*
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* 08/08/95 (Matt Rains)
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* i have cleaned up the source code. changes now bring this source into
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* guidelines for recommended programming practice.
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*
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* cd()
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* started.
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*
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* dir()
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* i have added support for file attributes to the DIR() function. the
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* routine adds "d" (directory) and "r" (read only) output. files with the
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* system attribute have the filename converted to lowercase. files with
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* the hidden attribute are not displayed.
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*
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* i have added support for directorys. now if the directory attribute is
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* detected the file size if replaced with the string "<dir>".
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*
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* ver()
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* started.
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*
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* md()
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* started.
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*
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* rd()
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* started.
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*
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* del()
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* started.
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*
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* does not support wildcard selection.
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*
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* todo: add delete directory support.
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* add recursive directory delete support.
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*
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* ren()
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* started.
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*
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* does not support wildcard selection.
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*
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* todo: add rename directory support.
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*
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* a general structure has been used for the cd, rd and md commands. this
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* will be better in the long run. it is too hard to maintain such diverse
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* functions when you are involved in a group project like this.
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*
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* 12/14/95 (Tim Norman)
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* fixed DIR so that it will stick \*.* if a directory is specified and
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* that it will stick on .* if a file with no extension is specified or
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* *.* if it ends in a \
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*
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* 1/6/96 (Tim Norman)
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* added an isatty call to DIR so it won't prompt for keypresses unless
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* stdin and stdout are the console.
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*
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* changed parameters to be mutually consistent to make calling the
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* functions easier
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*
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* rem()
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* started.
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*
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* doskey()
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* started.
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*
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* 01/22/96 (Oliver Mueller)
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* error messages are now handled by perror.
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*
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* 02/05/96 (Tim Norman)
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* converted all functions to accept first/rest parameters
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*
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* 07/26/96 (Tim Norman)
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* changed return values to int instead of void
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*
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* path() started.
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*
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* 12/23/96 (Aaron Kaufman)
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* rewrote dir() to mimic MS-DOS's dir
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*
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* 01/28/97 (Tim Norman)
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* cleaned up Aaron's DIR code
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*
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* 06/13/97 (Tim Norman)
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* moved DIR code to dir.c
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* re-implemented Aaron's DIR code
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*
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* 06/14/97 (Steffan Kaiser)
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* ctrl-break handling
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* bug fixes
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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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* 03-Dec-1998 (Eric Kohl)
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* Replaced DOS calls by Win32 calls.
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*
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* 08-Dec-1998 (Eric Kohl)
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* Added help texts ("/?").
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*
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* 18-Dec-1998 (Eric Kohl)
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* Added support for quoted arguments (cd "program files").
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*
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* 07-Jan-1999 (Eric Kohl)
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* Clean up.
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*
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* 26-Jan-1999 (Eric Kohl)
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* Replaced remaining CRT io functions by Win32 io functions.
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* Unicode safe!
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*
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* 30-Jan-1999 (Eric Kohl)
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* Added "cd -" feature. Changes to the previous directory.
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*
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* 15-Mar-1999 (Eric Kohl)
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* Fixed bug in "cd -" feature. If the previous directory was a root
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* directory, it was ignored.
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*
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* 23-Feb-2001 (Carl Nettelblad <cnettel@hem.passagen.se>)
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* Improved chdir/cd command.
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*
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* 02-Apr-2004 (Magnus Olsen <magnus@greatlord.com>)
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* Remove all hard code string so they can be
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* translate to other langues.
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*
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* 19-Jul-2005 (Brandon Turner <turnerb7@msu.edu>)
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* Rewrite the CD, it working as Windows 2000 CMD
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*
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* 19-Jul-2005 (Magnus Olsen <magnus@greatlord.com>)
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* Add SetRootPath and GetRootPath
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*
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* 14-Jul-2007 (Pierre Schweitzer <heis_spiter@hotmail.com>)
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* Added commands help display to help command (ex. : "help cmd")
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*/
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#include "precomp.h"
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#ifdef INCLUDE_CMD_CHDIR
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/* helper functions for getting current path from drive
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without changing drive. Return code 0 = ok, 1 = fail.
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INT GetRootPath("C:",outbuffer,chater size of outbuffer);
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the first param can have any size, if the the two frist
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letter are not a drive with : it will get Currentpath on
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current drive exactly as GetCurrentDirectory does.
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*/
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INT GetRootPath(TCHAR *InPath,TCHAR *OutPath,INT size)
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{
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if (InPath[0] && InPath[1] == _T(':'))
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{
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INT t=0;
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if ((InPath[0] >= _T('0')) && (InPath[0] <= _T('9')))
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{
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t = (InPath[0] - _T('0')) +28;
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}
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if ((InPath[0] >= _T('a')) && (InPath[0] <= _T('z')))
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{
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t = (InPath[0] - _T('a')) +1;
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InPath[0] = t + _T('A') - 1;
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}
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if ((InPath[0] >= _T('A')) && (InPath[0] <= _T('Z')))
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{
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t = (InPath[0] - _T('A')) +1;
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}
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return _tgetdcwd(t,OutPath,size) == NULL;
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}
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/* Get current directory */
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return !GetCurrentDirectory(size,OutPath);
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}
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BOOL SetRootPath(TCHAR *oldpath, TCHAR *InPath)
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{
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TCHAR OutPath[MAX_PATH];
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TCHAR OutPathTemp[MAX_PATH];
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/* Retrieve the full path name from the (possibly relative) InPath */
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if (GetFullPathName(InPath, MAX_PATH, OutPathTemp, NULL) == 0)
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goto Fail;
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/* Convert the full path to its correct case.
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* Example: c:\windows\SYSTEM32 => C:\WINDOWS\System32 */
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GetPathCase(OutPathTemp, OutPath);
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/* Use _tchdir, since unlike SetCurrentDirectory it updates
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* the current-directory-on-drive environment variables. */
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if (_tchdir(OutPath) != 0)
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goto Fail;
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/* Keep original drive in ordinary CD/CHDIR (without /D switch). */
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if (oldpath != NULL && _tcsncicmp(OutPath, oldpath, 2) != 0)
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SetCurrentDirectory(oldpath);
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return TRUE;
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Fail:
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ConErrFormatMessage(GetLastError());
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nErrorLevel = 1;
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return FALSE;
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}
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/*
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* CD / CHDIR
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*
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*/
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INT cmd_chdir (LPTSTR param)
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{
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BOOL bChangeDrive = FALSE;
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LPTSTR tmp;
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TCHAR szCurrent[MAX_PATH];
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/* Filter out special cases first */
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/* Print Help */
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if (!_tcsncmp(param, _T("/?"), 2))
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{
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ConOutResPaging(TRUE,STRING_CD_HELP);
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return 0;
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}
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/* Remove extra quotes and strip trailing whitespace */
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StripQuotes(param);
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tmp = param + _tcslen(param) - 1;
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while (tmp > param && _istspace(*tmp))
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tmp--;
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*(tmp + 1) = _T('\0');
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/* Set Error Level to Success */
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nErrorLevel = 0;
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/* Print Current Directory on a disk */
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if (_tcslen(param) == 2 && param[1] == _T(':'))
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{
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if (GetRootPath(param, szCurrent, MAX_PATH))
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{
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error_invalid_drive();
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return 1;
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}
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ConOutPrintf(_T("%s\n"), szCurrent);
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return 0;
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}
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/* Get Current Directory */
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GetCurrentDirectory(MAX_PATH, szCurrent);
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if (param[0] == _T('\0'))
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{
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ConOutPrintf(_T("%s\n"), szCurrent);
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return 0;
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}
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/* Input String Contains /D Switch */
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if (!_tcsncicmp(param, _T("/D"), 2))
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{
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bChangeDrive = TRUE;
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param += 2;
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while (_istspace(*param))
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param++;
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}
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if (!SetRootPath(bChangeDrive ? NULL : szCurrent, param))
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{
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nErrorLevel = 1;
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return 1;
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}
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return 0;
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}
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#endif
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#ifdef INCLUDE_CMD_MKDIR
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/* Helper function for mkdir to make directories in a path.
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Don't use the api to decrease dependence on libs */
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BOOL
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MakeFullPath(TCHAR * DirPath)
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{
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TCHAR path[MAX_PATH];
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TCHAR *p = DirPath;
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INT_PTR n;
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if (CreateDirectory(DirPath, NULL))
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return TRUE;
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else if (GetLastError() != ERROR_PATH_NOT_FOUND)
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return FALSE;
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/* got ERROR_PATH_NOT_FOUND, so try building it up one component at a time */
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if (p[0] && p[1] == _T(':'))
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p += 2;
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while (*p == _T('\\'))
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p++; /* skip drive root */
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do
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{
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p = _tcschr(p, _T('\\'));
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n = p ? p++ - DirPath : _tcslen(DirPath);
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_tcsncpy(path, DirPath, n);
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path[n] = _T('\0');
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if ( !CreateDirectory(path, NULL) &&
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(GetLastError() != ERROR_ALREADY_EXISTS))
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{
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return FALSE;
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}
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} while (p != NULL);
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return TRUE;
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}
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/*
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* MD / MKDIR
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*/
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INT cmd_mkdir (LPTSTR param)
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{
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LPTSTR *p;
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INT argc, i;
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if (!_tcsncmp (param, _T("/?"), 2))
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{
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ConOutResPaging(TRUE,STRING_MKDIR_HELP);
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return 0;
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}
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p = split (param, &argc, FALSE, FALSE);
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if (argc == 0)
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{
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ConErrResPuts(STRING_ERROR_REQ_PARAM_MISSING);
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freep(p);
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nErrorLevel = 1;
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return 1;
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}
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nErrorLevel = 0;
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for (i = 0; i < argc; i++)
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{
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if (!MakeFullPath(p[i]))
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{
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if (GetLastError() == ERROR_PATH_NOT_FOUND)
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{
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ConErrResPuts(STRING_MD_ERROR2);
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}
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else
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{
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ErrorMessage (GetLastError(), _T("MD"));
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}
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nErrorLevel = 1;
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}
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}
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freep (p);
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return nErrorLevel;
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}
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#endif
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#ifdef INCLUDE_CMD_RMDIR
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/*
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* RD / RMDIR
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*/
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BOOL DeleteFolder(LPTSTR FileName)
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{
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TCHAR Base[MAX_PATH];
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TCHAR TempFileName[MAX_PATH];
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HANDLE hFile;
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WIN32_FIND_DATA f;
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_tcscpy(Base,FileName);
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_tcscat(Base,_T("\\*"));
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hFile = FindFirstFile(Base, &f);
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Base[_tcslen(Base) - 1] = _T('\0');
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if (hFile != INVALID_HANDLE_VALUE)
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{
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do
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{
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if (!_tcscmp(f.cFileName, _T(".")) ||
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!_tcscmp(f.cFileName, _T("..")))
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continue;
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_tcscpy(TempFileName,Base);
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_tcscat(TempFileName,f.cFileName);
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if (f.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
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DeleteFolder(TempFileName);
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else
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{
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SetFileAttributes(TempFileName,FILE_ATTRIBUTE_NORMAL);
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if (!DeleteFile(TempFileName))
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{
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FindClose (hFile);
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return 0;
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}
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}
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}while (FindNextFile (hFile, &f));
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FindClose (hFile);
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}
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return RemoveDirectory(FileName);
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}
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INT cmd_rmdir (LPTSTR param)
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{
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TCHAR ch;
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INT args;
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INT dirCount;
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LPTSTR *arg;
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INT i;
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BOOL RD_SUB = FALSE;
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BOOL RD_QUIET = FALSE;
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INT res;
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INT nError = 0;
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TCHAR szFullPath[MAX_PATH];
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if (!_tcsncmp (param, _T("/?"), 2))
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{
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ConOutResPaging(TRUE,STRING_RMDIR_HELP);
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return 0;
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}
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arg = split (param, &args, FALSE, FALSE);
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dirCount = 0;
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/* check for options anywhere in command line */
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for (i = 0; i < args; i++)
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{
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if (*arg[i] == _T('/'))
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{
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/*found a command, but check to make sure it has something after it*/
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if (_tcslen (arg[i]) == 2)
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{
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ch = _totupper (arg[i][1]);
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if (ch == _T('S'))
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{
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RD_SUB = TRUE;
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}
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else if (ch == _T('Q'))
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{
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RD_QUIET = TRUE;
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}
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}
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}
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else
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{
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dirCount++;
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}
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}
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if (dirCount == 0)
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{
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/* No folder to remove */
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error_req_param_missing();
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freep(arg);
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return 1;
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}
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for (i = 0; i < args; i++)
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{
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if (*arg[i] == _T('/'))
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continue;
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if (RD_SUB)
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{
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/* ask if they want to delete everything in the folder */
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if (!RD_QUIET)
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{
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res = FilePromptYNA (STRING_DEL_HELP2);
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if (res == PROMPT_NO || res == PROMPT_BREAK)
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{
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nError = 1;
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continue;
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}
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if (res == PROMPT_ALL)
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RD_QUIET = TRUE;
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}
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/* get the folder name */
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GetFullPathName(arg[i],MAX_PATH,szFullPath,NULL);
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/* remove trailing \ if any, but ONLY if dir is not the root dir */
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if (_tcslen (szFullPath) >= 2 && szFullPath[_tcslen (szFullPath) - 1] == _T('\\'))
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szFullPath[_tcslen(szFullPath) - 1] = _T('\0');
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res = DeleteFolder(szFullPath);
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}
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else
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{
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res = RemoveDirectory(arg[i]);
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}
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if (!res)
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{
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/* Couldn't delete the folder, print out the error */
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nError = GetLastError();
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ErrorMessage(nError, _T("RD"));
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}
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}
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freep (arg);
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return nError;
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}
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#endif
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/*
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* set the exitflag to true
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*/
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INT CommandExit(LPTSTR param)
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{
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if (!_tcsncmp(param, _T("/?"), 2))
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{
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ConOutResPaging(TRUE, STRING_EXIT_HELP);
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/* Just make sure we don't exit */
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bExit = FALSE;
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return 0;
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}
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if (_tcsnicmp(param, _T("/b"), 2) == 0)
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{
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param += 2;
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/*
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* If a current batch file is running, exit it,
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* otherwise exit this command interpreter instance.
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*/
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if (bc)
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ExitBatch();
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else
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bExit = TRUE;
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}
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else
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{
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/* Exit this command interpreter instance */
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bExit = TRUE;
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}
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/* Search for an optional exit code */
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while (_istspace(*param))
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param++;
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/* Set the errorlevel to the exit code */
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if (_istdigit(*param))
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nErrorLevel = _ttoi(param);
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return 0;
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}
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#ifdef INCLUDE_CMD_REM
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/*
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* does nothing
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*/
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INT CommandRem (LPTSTR param)
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{
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if (!_tcsncmp (param, _T("/?"), 2))
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{
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ConOutResPaging(TRUE,STRING_REM_HELP);
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}
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return 0;
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}
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#endif /* INCLUDE_CMD_REM */
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INT CommandShowCommands (LPTSTR param)
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{
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PrintCommandList();
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return 0;
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}
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/* EOF */
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