mirror of
https://github.com/reactos/reactos.git
synced 2024-08-30 15:18:33 +00:00
![Hermès Bélusca-Maïto](/assets/img/avatar_default.png)
- Make sure that non-administrator users can list associations, and display appropriate error messages when e.g. they don't have sufficient privileges to perform an operation. - Make the helper functions all return Win32 values, used as the ERRORVALUE, except when a specific extension association fails to be displayed, in which case the ERRORVALUE is normalized to 1. - Since the 'param' is a modifiable string (that can be modified by the command, independently of the way it's called), just use it to isolate the extension by zeroing out the equls-sign separator.
314 lines
7.2 KiB
C
314 lines
7.2 KiB
C
/*
|
|
* ASSOC.C - assoc internal command.
|
|
*
|
|
*
|
|
* History:
|
|
*
|
|
* 14-Mar-2009 Lee C. Baker
|
|
* - initial implementation.
|
|
*
|
|
* 15-Mar-2009 Lee C. Baker
|
|
* - Don't write to (or use) HKEY_CLASSES_ROOT directly.
|
|
* - Externalize strings.
|
|
*
|
|
* TODO:
|
|
* - PrintAllAssociations could be optimized to not fetch all registry subkeys under 'Classes', just the ones that start with '.'
|
|
*/
|
|
|
|
#include "precomp.h"
|
|
|
|
#ifdef INCLUDE_CMD_ASSOC
|
|
|
|
static LONG
|
|
PrintAssociationEx(
|
|
IN HKEY hKeyClasses,
|
|
IN PCTSTR pszExtension)
|
|
{
|
|
LONG lRet;
|
|
HKEY hKey;
|
|
DWORD dwFileTypeLen = 0;
|
|
PTSTR pszFileType;
|
|
|
|
lRet = RegOpenKeyEx(hKeyClasses, pszExtension, 0, KEY_QUERY_VALUE, &hKey);
|
|
if (lRet != ERROR_SUCCESS)
|
|
{
|
|
if (lRet != ERROR_FILE_NOT_FOUND)
|
|
ErrorMessage(lRet, NULL);
|
|
return lRet;
|
|
}
|
|
|
|
/* Obtain the string length */
|
|
lRet = RegQueryValueEx(hKey, NULL, NULL, NULL, NULL, &dwFileTypeLen);
|
|
|
|
/* If there is no default value, don't display it */
|
|
if (lRet == ERROR_FILE_NOT_FOUND)
|
|
{
|
|
RegCloseKey(hKey);
|
|
return lRet;
|
|
}
|
|
if (lRet != ERROR_SUCCESS)
|
|
{
|
|
ErrorMessage(lRet, NULL);
|
|
RegCloseKey(hKey);
|
|
return lRet;
|
|
}
|
|
|
|
++dwFileTypeLen;
|
|
pszFileType = cmd_alloc(dwFileTypeLen * sizeof(TCHAR));
|
|
if (!pszFileType)
|
|
{
|
|
WARN("Cannot allocate memory for pszFileType!\n");
|
|
RegCloseKey(hKey);
|
|
return ERROR_NOT_ENOUGH_MEMORY;
|
|
}
|
|
|
|
/* Obtain the actual file type */
|
|
lRet = RegQueryValueEx(hKey, NULL, NULL, NULL, (LPBYTE)pszFileType, &dwFileTypeLen);
|
|
RegCloseKey(hKey);
|
|
|
|
if (lRet != ERROR_SUCCESS)
|
|
{
|
|
ErrorMessage(lRet, NULL);
|
|
cmd_free(pszFileType);
|
|
return lRet;
|
|
}
|
|
|
|
/* If there is a default key, display the relevant information */
|
|
if (dwFileTypeLen != 0)
|
|
{
|
|
ConOutPrintf(_T("%s=%s\n"), pszExtension, pszFileType);
|
|
}
|
|
|
|
cmd_free(pszFileType);
|
|
return ERROR_SUCCESS;
|
|
}
|
|
|
|
static LONG
|
|
PrintAssociation(
|
|
IN PCTSTR pszExtension)
|
|
{
|
|
LONG lRet;
|
|
HKEY hKeyClasses;
|
|
|
|
lRet = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Classes"), 0,
|
|
KEY_ENUMERATE_SUB_KEYS, &hKeyClasses);
|
|
if (lRet != ERROR_SUCCESS)
|
|
{
|
|
ErrorMessage(lRet, NULL);
|
|
return lRet;
|
|
}
|
|
|
|
lRet = PrintAssociationEx(hKeyClasses, pszExtension);
|
|
|
|
RegCloseKey(hKeyClasses);
|
|
return lRet;
|
|
}
|
|
|
|
static LONG
|
|
PrintAllAssociations(VOID)
|
|
{
|
|
LONG lRet;
|
|
HKEY hKeyClasses;
|
|
DWORD dwKeyCtr;
|
|
DWORD dwNumKeys = 0;
|
|
DWORD dwExtLen = 0;
|
|
PTSTR pszExtName;
|
|
|
|
lRet = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Classes"), 0,
|
|
KEY_QUERY_VALUE | KEY_ENUMERATE_SUB_KEYS, &hKeyClasses);
|
|
if (lRet != ERROR_SUCCESS)
|
|
{
|
|
ErrorMessage(lRet, NULL);
|
|
return lRet;
|
|
}
|
|
|
|
lRet = RegQueryInfoKey(hKeyClasses, NULL, NULL, NULL, &dwNumKeys, &dwExtLen,
|
|
NULL, NULL, NULL, NULL, NULL, NULL);
|
|
if (lRet != ERROR_SUCCESS)
|
|
{
|
|
ErrorMessage(lRet, NULL);
|
|
RegCloseKey(hKeyClasses);
|
|
return lRet;
|
|
}
|
|
|
|
++dwExtLen;
|
|
pszExtName = cmd_alloc(dwExtLen * sizeof(TCHAR));
|
|
if (!pszExtName)
|
|
{
|
|
WARN("Cannot allocate memory for pszExtName!\n");
|
|
RegCloseKey(hKeyClasses);
|
|
return ERROR_NOT_ENOUGH_MEMORY;
|
|
}
|
|
|
|
for (dwKeyCtr = 0; dwKeyCtr < dwNumKeys; ++dwKeyCtr)
|
|
{
|
|
DWORD dwBufSize = dwExtLen;
|
|
lRet = RegEnumKeyEx(hKeyClasses, dwKeyCtr, pszExtName, &dwBufSize,
|
|
NULL, NULL, NULL, NULL);
|
|
|
|
if (lRet == ERROR_SUCCESS || lRet == ERROR_MORE_DATA)
|
|
{
|
|
/* Name starts with '.': this is an extension */
|
|
if (*pszExtName == _T('.'))
|
|
PrintAssociationEx(hKeyClasses, pszExtName);
|
|
}
|
|
else
|
|
{
|
|
ErrorMessage(lRet, NULL);
|
|
cmd_free(pszExtName);
|
|
RegCloseKey(hKeyClasses);
|
|
return lRet;
|
|
}
|
|
}
|
|
|
|
RegCloseKey(hKeyClasses);
|
|
|
|
cmd_free(pszExtName);
|
|
return ERROR_SUCCESS;
|
|
}
|
|
|
|
static LONG
|
|
AddAssociation(
|
|
IN PCTSTR pszExtension,
|
|
IN PCTSTR pszType)
|
|
{
|
|
LONG lRet;
|
|
HKEY hKeyClasses, hKey;
|
|
|
|
lRet = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Classes"), 0,
|
|
KEY_CREATE_SUB_KEY, &hKeyClasses);
|
|
if (lRet != ERROR_SUCCESS)
|
|
{
|
|
ErrorMessage(lRet, NULL);
|
|
return lRet;
|
|
}
|
|
|
|
lRet = RegCreateKeyEx(hKeyClasses, pszExtension, 0, NULL, REG_OPTION_NON_VOLATILE,
|
|
KEY_SET_VALUE, NULL, &hKey, NULL);
|
|
RegCloseKey(hKeyClasses);
|
|
|
|
if (lRet != ERROR_SUCCESS)
|
|
{
|
|
ErrorMessage(lRet, NULL);
|
|
return lRet;
|
|
}
|
|
|
|
lRet = RegSetValueEx(hKey, NULL, 0, REG_SZ,
|
|
(LPBYTE)pszType, (DWORD)(_tcslen(pszType) + 1) * sizeof(TCHAR));
|
|
RegCloseKey(hKey);
|
|
|
|
if (lRet != ERROR_SUCCESS)
|
|
{
|
|
ErrorMessage(lRet, NULL);
|
|
return lRet;
|
|
}
|
|
|
|
return ERROR_SUCCESS;
|
|
}
|
|
|
|
static LONG
|
|
RemoveAssociation(
|
|
IN PCTSTR pszExtension)
|
|
{
|
|
LONG lRet;
|
|
HKEY hKeyClasses;
|
|
|
|
lRet = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Classes"), 0,
|
|
KEY_QUERY_VALUE, &hKeyClasses);
|
|
if (lRet != ERROR_SUCCESS)
|
|
{
|
|
ErrorMessage(lRet, NULL);
|
|
return lRet;
|
|
}
|
|
|
|
lRet = RegDeleteKey(hKeyClasses, pszExtension);
|
|
RegCloseKey(hKeyClasses);
|
|
|
|
if (lRet != ERROR_SUCCESS)
|
|
{
|
|
if (lRet != ERROR_FILE_NOT_FOUND)
|
|
ErrorMessage(lRet, NULL);
|
|
return lRet;
|
|
}
|
|
|
|
return ERROR_SUCCESS;
|
|
}
|
|
|
|
|
|
INT CommandAssoc(LPTSTR param)
|
|
{
|
|
INT retval = 0;
|
|
PTCHAR pEqualSign;
|
|
|
|
/* Print help */
|
|
if (!_tcsncmp(param, _T("/?"), 2))
|
|
{
|
|
ConOutResPaging(TRUE, STRING_ASSOC_HELP);
|
|
return 0;
|
|
}
|
|
|
|
/* Print all associations if no parameter has been specified */
|
|
if (!*param)
|
|
{
|
|
PrintAllAssociations();
|
|
goto Quit;
|
|
}
|
|
|
|
pEqualSign = _tcschr(param, _T('='));
|
|
if (pEqualSign != NULL)
|
|
{
|
|
PTSTR pszFileType = pEqualSign + 1;
|
|
|
|
/* NULL-terminate at the equals sign */
|
|
*pEqualSign = 0;
|
|
|
|
/* If the equals sign is the last character
|
|
* in the string, delete the association. */
|
|
if (*pszFileType == 0)
|
|
{
|
|
retval = RemoveAssociation(param);
|
|
}
|
|
else
|
|
/* Otherwise, add the association and print it out */
|
|
{
|
|
retval = AddAssociation(param, pszFileType);
|
|
PrintAssociation(param);
|
|
}
|
|
|
|
if (retval != ERROR_SUCCESS)
|
|
{
|
|
if (retval != ERROR_FILE_NOT_FOUND)
|
|
{
|
|
// FIXME: Localize
|
|
ConErrPrintf(_T("Error occurred while processing: %s.\n"), param);
|
|
}
|
|
// retval = 1; /* Fixup the error value */
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* No equals sign, print the association */
|
|
retval = PrintAssociation(param);
|
|
if (retval != ERROR_SUCCESS)
|
|
{
|
|
ConErrResPrintf(STRING_ASSOC_ERROR, param);
|
|
retval = 1; /* Fixup the error value */
|
|
}
|
|
}
|
|
|
|
Quit:
|
|
if (BatType != CMD_TYPE)
|
|
{
|
|
if (retval != 0)
|
|
nErrorLevel = retval;
|
|
}
|
|
else
|
|
{
|
|
nErrorLevel = retval;
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
#endif /* INCLUDE_CMD_ASSOC */
|