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reactos/rosapps/cmd/del.c
Gé van Geldorp 3ade7829d0 * Move (optional) wildcard expansion to split() 
* Only expand arguments actually containing wildcard characters
  (to prevent expanding directory names to all files within that directory)

svn path=/trunk/; revision=4018
2003-01-17 00:31:33 +00:00

348 lines
7.6 KiB
C
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/*
* DEL.C - del internal command.
*
*
* History:
*
* 06/29/98 (Rob Lake rlake@cs.mun.ca)
* rewrote del to support wildcards
* added my name to the contributors
*
* 07/13/98 (Rob Lake)
* fixed bug that caused del not to delete file with out
* attribute. moved set, del, ren, and ver to there own files
*
* 27-Jul-1998 (John P Price <linux-guru@gcfl.net>)
* added config.h include
*
* 09-Dec-1998 (Eric Kohl <ekohl@abo.rhein-zeiung.de>)
* Fixed command line parsing bugs.
*
* 21-Jan-1999 (Eric Kohl <ekohl@abo.rhein-zeiung.de>)
* Started major rewrite using a new structure.
*
* 03-Feb-1999 (Eric Kohl <ekohl@abo.rhein-zeiung.de>)
* First working version.
*
* 30-Mar-1999 (Eric Kohl <ekohl@abo.rhein-zeiung.de>)
* Added quiet ("/Q"), wipe ("/W") and zap ("/Z") option.
*
* 06-Nov-1999 (Eric Kohl <ekohl@abo.rhein-zeiung.de>)
* Little fix to keep DEL quiet inside batch files.
*/
#include "config.h"
#ifdef INCLUDE_CMD_DEL
#include <windows.h>
#include <tchar.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include "cmd.h"
#include "batch.h"
enum
{
DEL_ATTRIBUTES = 0x001, /* /A : not implemented */
DEL_ERROR = 0x002, /* /E : not implemented */
DEL_NOTHING = 0x004, /* /N */
DEL_PROMPT = 0x008, /* /P : not implemented */
DEL_QUIET = 0x010, /* /Q */
DEL_SUBDIR = 0x020, /* /S : not implemented */
DEL_TOTAL = 0x040, /* /T */
DEL_WIPE = 0x080, /* /W */
DEL_EMPTYDIR = 0x100, /* /X : not implemented */
DEL_YES = 0x200, /* /Y : not implemented */
DEL_ZAP = 0x400 /* /Z */
};
static BOOL
RemoveFile (LPTSTR lpFileName, DWORD dwFlags)
{
if (dwFlags & DEL_WIPE)
{
/* FIXME: Wipe the given file */
}
return DeleteFile (lpFileName);
}
INT CommandDelete (LPTSTR cmd, LPTSTR param)
{
TCHAR szFullPath[MAX_PATH];
LPTSTR pFilePart;
LPTSTR *arg = NULL;
INT args;
INT i;
INT nEvalArgs = 0; /* nunber of evaluated arguments */
DWORD dwFlags = 0;
DWORD dwFiles = 0;
HANDLE hFile;
WIN32_FIND_DATA f;
if (!_tcsncmp (param, _T("/?"), 2))
{
ConOutPuts (_T("Deletes one or more files.\n"
"\n"
"DEL [/N /P /T /Q /W /Z] file ...\n"
"DELETE [/N /P /T /Q /W /Z] file ...\n"
"ERASE [/N /P /T /Q /W /Z] file ...\n"
"\n"
" file Specifies the file(s) to delete.\n"
"\n"
" /N Nothing.\n"
" /P Prompts for confirmation before deleting each file.\n"
" (Not implemented yet!)\n"
" /T Display total number of deleted files and freed disk space.\n"
" /Q Quiet.\n"
" /W Wipe. Overwrite the file with zeros before deleting it.\n"
" /Z Zap (delete hidden, read-only and system files).\n"));
return 0;
}
arg = split (param, &args, FALSE);
if (args > 0)
{
/* check for options anywhere in command line */
for (i = 0; i < args; i++)
{
if (*arg[i] == _T('/'))
{
if (_tcslen (arg[i]) >= 2)
{
switch (_totupper (arg[i][1]))
{
case _T('N'):
dwFlags |= DEL_NOTHING;
break;
case _T('P'):
dwFlags |= DEL_PROMPT;
break;
case _T('Q'):
dwFlags |= DEL_QUIET;
break;
case _T('S'):
dwFlags |= DEL_SUBDIR;
break;
case _T('T'):
dwFlags |= DEL_TOTAL;
break;
case _T('W'):
dwFlags |= DEL_WIPE;
break;
case _T('Z'):
dwFlags |= DEL_ZAP;
break;
}
}
nEvalArgs++;
}
}
/* there are only options on the command line --> error!!! */
if (args == nEvalArgs)
{
error_req_param_missing ();
freep (arg);
return 1;
}
/* keep quiet within batch files */
if (bc != NULL)
dwFlags |= DEL_QUIET;
/* check for filenames anywhere in command line */
for (i = 0; i < args; i++)
{
if (!_tcscmp (arg[i], _T("*")) ||
!_tcscmp (arg[i], _T("*.*")))
{
INT res;
res = FilePromptYN (_T("All files in directory will be deleted!\n"
"Are you sure (Y/N)?"));
if ((res == PROMPT_NO) ||
(res == PROMPT_BREAK))
break;
}
if (*arg[i] != _T('/'))
{
#ifdef _DEBUG
ConErrPrintf (_T("File: %s\n"), arg[i]);
#endif
if (_tcschr (arg[i], _T('*')) || _tcschr (arg[i], _T('?')))
{
/* wildcards in filespec */
#ifdef _DEBUG
ConErrPrintf (_T("Wildcards!\n\n"));
#endif
GetFullPathName (arg[i],
MAX_PATH,
szFullPath,
&pFilePart);
#ifdef _DEBUG
ConErrPrintf (_T("Full path: %s\n"), szFullPath);
ConErrPrintf (_T("File part: %s\n"), pFilePart);
#endif
hFile = FindFirstFile (szFullPath, &f);
if (hFile == INVALID_HANDLE_VALUE)
{
error_file_not_found ();
freep (arg);
return 0;
}
do
{
/* ignore "." and ".." */
if (!_tcscmp (f.cFileName, _T(".")) ||
!_tcscmp (f.cFileName, _T("..")))
continue;
_tcscpy (pFilePart, f.cFileName);
#ifdef _DEBUG
ConErrPrintf (_T("Full filename: %s\n"), szFullPath);
#endif
if (!(dwFlags & DEL_QUIET) && !(dwFlags & DEL_TOTAL))
ConErrPrintf (_T("Deleting: %s\n"), szFullPath);
/* delete the file */
if (!(dwFlags & DEL_NOTHING))
{
if (RemoveFile (szFullPath, dwFlags))
{
dwFiles++;
}
else
{
if (dwFlags & DEL_ZAP)
{
if (SetFileAttributes (szFullPath, 0))
{
if (RemoveFile (szFullPath, dwFlags))
{
dwFiles++;
}
else
{
ErrorMessage (GetLastError(), _T(""));
}
}
else
{
ErrorMessage (GetLastError(), _T(""));
}
}
else
{
ErrorMessage (GetLastError(), _T(""));
}
}
}
}
while (FindNextFile (hFile, &f));
FindClose (hFile);
}
else
{
/* no wildcards in filespec */
#ifdef _DEBUG
ConErrPrintf (_T("No Wildcards!\n"));
#endif
GetFullPathName (arg[i],
MAX_PATH,
szFullPath,
&pFilePart);
#ifdef _DEBUG
ConErrPrintf (_T("Full path: %s\n"), szFullPath);
#endif
if (!(dwFlags & DEL_QUIET) && !(dwFlags & DEL_TOTAL))
ConOutPrintf (_T("Deleting %s\n"), szFullPath);
if (!(dwFlags & DEL_NOTHING))
{
if (RemoveFile (szFullPath, dwFlags))
{
dwFiles++;
}
else
{
if (dwFlags & DEL_ZAP)
{
if (SetFileAttributes (szFullPath, 0))
{
if (RemoveFile (szFullPath, dwFlags))
{
dwFiles++;
}
else
{
ErrorMessage (GetLastError(), _T(""));
}
}
else
{
ErrorMessage (GetLastError(), _T(""));
}
}
else
{
ErrorMessage (GetLastError(), _T(""));
}
}
}
}
}
}
}
else
{
/* only command given */
error_req_param_missing ();
freep (arg);
return 1;
}
freep (arg);
if (!(dwFlags & DEL_QUIET))
{
if (dwFiles == 0)
ConOutPrintf (_T(" 0 files deleted\n"));
else
ConOutPrintf (_T(" %lu file%s deleted\n"),
dwFiles,
(dwFiles == 1) ? "" : "s");
}
return 0;
}
#endif
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