mirror of
https://github.com/reactos/reactos.git
synced 2024-12-04 00:43:32 +08:00
[CMD] ASSOC: Simplify the code and make it more robust; fix returned ERRORLEVEL values.
- 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.
This commit is contained in:
Hermès Bélusca-Maïto
parent
63316df520
commit
141378cfc8
@ -13,187 +13,232 @@
|
||||
*
|
||||
* TODO:
|
||||
* - PrintAllAssociations could be optimized to not fetch all registry subkeys under 'Classes', just the ones that start with '.'
|
||||
* - Make sure that non-administrator users can list associations, and get appropriate error messages when they don't have sufficient
|
||||
* privileges to perform an operation.
|
||||
*/
|
||||
|
||||
#include "precomp.h"
|
||||
|
||||
#ifdef INCLUDE_CMD_ASSOC
|
||||
|
||||
static INT
|
||||
PrintAssociation(
|
||||
IN LPCTSTR extension)
|
||||
static LONG
|
||||
PrintAssociationEx(
|
||||
IN HKEY hKeyClasses,
|
||||
IN PCTSTR pszExtension)
|
||||
{
|
||||
DWORD lRet;
|
||||
HKEY hKey = NULL, hSubKey = NULL;
|
||||
DWORD fileTypeLength = 0;
|
||||
LPTSTR fileType = NULL;
|
||||
LONG lRet;
|
||||
HKEY hKey;
|
||||
DWORD dwFileTypeLen = 0;
|
||||
PTSTR pszFileType;
|
||||
|
||||
lRet = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Classes"), 0, KEY_READ, &hKey);
|
||||
lRet = RegOpenKeyEx(hKeyClasses, pszExtension, 0, KEY_QUERY_VALUE, &hKey);
|
||||
if (lRet != ERROR_SUCCESS)
|
||||
return -1;
|
||||
{
|
||||
if (lRet != ERROR_FILE_NOT_FOUND)
|
||||
ErrorMessage(lRet, NULL);
|
||||
return lRet;
|
||||
}
|
||||
|
||||
lRet = RegOpenKeyEx(hKey, extension, 0, KEY_READ, &hSubKey);
|
||||
/* 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)
|
||||
return 0;
|
||||
|
||||
/* Obtain string length */
|
||||
lRet = RegQueryValueEx(hSubKey, NULL, NULL, NULL, NULL, &fileTypeLength);
|
||||
|
||||
/* If there is no default value, don't display */
|
||||
if (lRet == ERROR_FILE_NOT_FOUND)
|
||||
{
|
||||
RegCloseKey(hSubKey);
|
||||
return 0;
|
||||
}
|
||||
if (lRet != ERROR_SUCCESS)
|
||||
{
|
||||
RegCloseKey(hSubKey);
|
||||
return -2;
|
||||
ErrorMessage(lRet, NULL);
|
||||
cmd_free(pszFileType);
|
||||
return lRet;
|
||||
}
|
||||
|
||||
fileType = cmd_alloc(fileTypeLength * sizeof(TCHAR));
|
||||
if (!fileType)
|
||||
/* If there is a default key, display the relevant information */
|
||||
if (dwFileTypeLen != 0)
|
||||
{
|
||||
WARN("Cannot allocate memory for fileType!\n");
|
||||
RegCloseKey(hSubKey);
|
||||
return -2;
|
||||
ConOutPrintf(_T("%s=%s\n"), pszExtension, pszFileType);
|
||||
}
|
||||
|
||||
/* Obtain actual file type */
|
||||
lRet = RegQueryValueEx(hSubKey, NULL, NULL, NULL, (LPBYTE)fileType, &fileTypeLength);
|
||||
RegCloseKey(hSubKey);
|
||||
|
||||
if (lRet != ERROR_SUCCESS)
|
||||
{
|
||||
cmd_free(fileType);
|
||||
return -2;
|
||||
}
|
||||
|
||||
/* If there is a default key, display relevant information */
|
||||
if (fileTypeLength != 0)
|
||||
{
|
||||
ConOutPrintf(_T("%s=%s\n"), extension, fileType);
|
||||
}
|
||||
|
||||
cmd_free(fileType);
|
||||
return 1;
|
||||
cmd_free(pszFileType);
|
||||
return ERROR_SUCCESS;
|
||||
}
|
||||
|
||||
static INT
|
||||
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)
|
||||
{
|
||||
DWORD lRet = 0;
|
||||
HKEY hKey = NULL;
|
||||
DWORD numKeys = 0;
|
||||
LONG lRet;
|
||||
HKEY hKeyClasses;
|
||||
DWORD dwKeyCtr;
|
||||
DWORD dwNumKeys = 0;
|
||||
DWORD dwExtLen = 0;
|
||||
PTSTR pszExtName;
|
||||
|
||||
DWORD extLength = 0;
|
||||
LPTSTR extName = NULL;
|
||||
DWORD keyCtr = 0;
|
||||
|
||||
lRet = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Classes"), 0, KEY_READ, &hKey);
|
||||
lRet = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Classes"), 0,
|
||||
KEY_QUERY_VALUE | KEY_ENUMERATE_SUB_KEYS, &hKeyClasses);
|
||||
if (lRet != ERROR_SUCCESS)
|
||||
return -1;
|
||||
{
|
||||
ErrorMessage(lRet, NULL);
|
||||
return lRet;
|
||||
}
|
||||
|
||||
lRet = RegQueryInfoKey(hKey, NULL, NULL, NULL, &numKeys, &extLength,
|
||||
lRet = RegQueryInfoKey(hKeyClasses, NULL, NULL, NULL, &dwNumKeys, &dwExtLen,
|
||||
NULL, NULL, NULL, NULL, NULL, NULL);
|
||||
if (lRet != ERROR_SUCCESS)
|
||||
{
|
||||
RegCloseKey(hKey);
|
||||
return -2;
|
||||
ErrorMessage(lRet, NULL);
|
||||
RegCloseKey(hKeyClasses);
|
||||
return lRet;
|
||||
}
|
||||
|
||||
extLength++;
|
||||
extName = cmd_alloc(extLength * sizeof(TCHAR));
|
||||
if (!extName)
|
||||
++dwExtLen;
|
||||
pszExtName = cmd_alloc(dwExtLen * sizeof(TCHAR));
|
||||
if (!pszExtName)
|
||||
{
|
||||
WARN("Cannot allocate memory for extName!\n");
|
||||
RegCloseKey(hKey);
|
||||
return -2;
|
||||
WARN("Cannot allocate memory for pszExtName!\n");
|
||||
RegCloseKey(hKeyClasses);
|
||||
return ERROR_NOT_ENOUGH_MEMORY;
|
||||
}
|
||||
|
||||
for (keyCtr = 0; keyCtr < numKeys; ++keyCtr)
|
||||
for (dwKeyCtr = 0; dwKeyCtr < dwNumKeys; ++dwKeyCtr)
|
||||
{
|
||||
DWORD dwBufSize = extLength;
|
||||
lRet = RegEnumKeyEx(hKey, keyCtr, extName, &dwBufSize,
|
||||
DWORD dwBufSize = dwExtLen;
|
||||
lRet = RegEnumKeyEx(hKeyClasses, dwKeyCtr, pszExtName, &dwBufSize,
|
||||
NULL, NULL, NULL, NULL);
|
||||
|
||||
if (lRet == ERROR_SUCCESS || lRet == ERROR_MORE_DATA)
|
||||
{
|
||||
if (*extName == _T('.'))
|
||||
PrintAssociation(extName);
|
||||
/* Name starts with '.': this is an extension */
|
||||
if (*pszExtName == _T('.'))
|
||||
PrintAssociationEx(hKeyClasses, pszExtName);
|
||||
}
|
||||
else
|
||||
{
|
||||
cmd_free(extName);
|
||||
RegCloseKey(hKey);
|
||||
return -1;
|
||||
ErrorMessage(lRet, NULL);
|
||||
cmd_free(pszExtName);
|
||||
RegCloseKey(hKeyClasses);
|
||||
return lRet;
|
||||
}
|
||||
}
|
||||
|
||||
RegCloseKey(hKey);
|
||||
RegCloseKey(hKeyClasses);
|
||||
|
||||
cmd_free(extName);
|
||||
return numKeys;
|
||||
cmd_free(pszExtName);
|
||||
return ERROR_SUCCESS;
|
||||
}
|
||||
|
||||
static INT
|
||||
static LONG
|
||||
AddAssociation(
|
||||
IN LPCTSTR extension,
|
||||
IN LPCTSTR type)
|
||||
IN PCTSTR pszExtension,
|
||||
IN PCTSTR pszType)
|
||||
{
|
||||
DWORD lRet;
|
||||
HKEY hKey = NULL, hSubKey = NULL;
|
||||
LONG lRet;
|
||||
HKEY hKeyClasses, hKey;
|
||||
|
||||
lRet = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Classes"), 0, KEY_ALL_ACCESS, &hKey);
|
||||
lRet = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Classes"), 0,
|
||||
KEY_CREATE_SUB_KEY, &hKeyClasses);
|
||||
if (lRet != ERROR_SUCCESS)
|
||||
return -1;
|
||||
{
|
||||
ErrorMessage(lRet, NULL);
|
||||
return lRet;
|
||||
}
|
||||
|
||||
lRet = RegCreateKeyEx(hKey, extension, 0, NULL, REG_OPTION_NON_VOLATILE,
|
||||
KEY_ALL_ACCESS, NULL, &hSubKey, NULL);
|
||||
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)
|
||||
return -1;
|
||||
{
|
||||
ErrorMessage(lRet, NULL);
|
||||
return lRet;
|
||||
}
|
||||
|
||||
lRet = RegSetValueEx(hSubKey, NULL, 0, REG_SZ,
|
||||
(LPBYTE)type, (_tcslen(type) + 1) * sizeof(TCHAR));
|
||||
RegCloseKey(hSubKey);
|
||||
|
||||
if (lRet != ERROR_SUCCESS)
|
||||
return -2;
|
||||
|
||||
return 0;
|
||||
return ERROR_SUCCESS;
|
||||
}
|
||||
|
||||
static INT
|
||||
static LONG
|
||||
RemoveAssociation(
|
||||
IN LPCTSTR extension)
|
||||
IN PCTSTR pszExtension)
|
||||
{
|
||||
DWORD lRet;
|
||||
HKEY hKey;
|
||||
LONG lRet;
|
||||
HKEY hKeyClasses;
|
||||
|
||||
lRet = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Classes"), 0, KEY_ALL_ACCESS, &hKey);
|
||||
lRet = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Classes"), 0,
|
||||
KEY_QUERY_VALUE, &hKeyClasses);
|
||||
if (lRet != ERROR_SUCCESS)
|
||||
return -1;
|
||||
{
|
||||
ErrorMessage(lRet, NULL);
|
||||
return lRet;
|
||||
}
|
||||
|
||||
lRet = RegDeleteKey(hKey, extension);
|
||||
RegCloseKey(hKey);
|
||||
lRet = RegDeleteKey(hKeyClasses, pszExtension);
|
||||
RegCloseKey(hKeyClasses);
|
||||
|
||||
if (lRet != ERROR_SUCCESS)
|
||||
return -2;
|
||||
{
|
||||
if (lRet != ERROR_FILE_NOT_FOUND)
|
||||
ErrorMessage(lRet, NULL);
|
||||
return lRet;
|
||||
}
|
||||
|
||||
return 0;
|
||||
return ERROR_SUCCESS;
|
||||
}
|
||||
|
||||
|
||||
INT CommandAssoc(LPTSTR param)
|
||||
{
|
||||
INT retval = 0;
|
||||
LPTSTR lpEqualSign;
|
||||
PTCHAR pEqualSign;
|
||||
|
||||
/* Print help */
|
||||
if (!_tcsncmp(param, _T("/?"), 2))
|
||||
@ -202,53 +247,51 @@ INT CommandAssoc(LPTSTR param)
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (_tcslen(param) == 0)
|
||||
/* Print all associations if no parameter has been specified */
|
||||
if (!*param)
|
||||
{
|
||||
PrintAllAssociations();
|
||||
goto Quit;
|
||||
}
|
||||
|
||||
lpEqualSign = _tcschr(param, _T('='));
|
||||
if (lpEqualSign != NULL)
|
||||
pEqualSign = _tcschr(param, _T('='));
|
||||
if (pEqualSign != NULL)
|
||||
{
|
||||
LPTSTR fileType = lpEqualSign + 1;
|
||||
LPTSTR extension = cmd_alloc((lpEqualSign - param + 1) * sizeof(TCHAR));
|
||||
if (!extension)
|
||||
{
|
||||
WARN("Cannot allocate memory for extension!\n");
|
||||
error_out_of_memory();
|
||||
retval = 1;
|
||||
goto Quit;
|
||||
}
|
||||
PTSTR pszFileType = pEqualSign + 1;
|
||||
|
||||
_tcsncpy(extension, param, lpEqualSign - param);
|
||||
extension[lpEqualSign - param] = _T('\0');
|
||||
/* NULL-terminate at the equals sign */
|
||||
*pEqualSign = 0;
|
||||
|
||||
/* If the equal sign is the last character
|
||||
* in the string, then delete the key. */
|
||||
if (_tcslen(fileType) == 0)
|
||||
/* If the equals sign is the last character
|
||||
* in the string, delete the association. */
|
||||
if (*pszFileType == 0)
|
||||
{
|
||||
retval = RemoveAssociation(extension);
|
||||
retval = RemoveAssociation(param);
|
||||
}
|
||||
else
|
||||
/* Otherwise, add the key and print out the association */
|
||||
/* Otherwise, add the association and print it out */
|
||||
{
|
||||
retval = AddAssociation(extension, fileType);
|
||||
PrintAssociation(extension);
|
||||
retval = AddAssociation(param, pszFileType);
|
||||
PrintAssociation(param);
|
||||
}
|
||||
|
||||
cmd_free(extension);
|
||||
|
||||
if (retval)
|
||||
retval = 1; /* Fixup the error value */
|
||||
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 equal sign, print all associations */
|
||||
/* No equals sign, print the association */
|
||||
retval = PrintAssociation(param);
|
||||
if (retval == 0) /* If nothing printed out */
|
||||
if (retval != ERROR_SUCCESS)
|
||||
{
|
||||
ConOutResPrintf(STRING_ASSOC_ERROR, param);
|
||||
ConErrResPrintf(STRING_ASSOC_ERROR, param);
|
||||
retval = 1; /* Fixup the error value */
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user