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