+++ /dev/null
-/*
- * 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 might 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(LPTSTR extension)
-{
- DWORD return_val;
- HKEY hKey = NULL, hInsideKey = NULL;
-
- DWORD fileTypeLength = 0;
- LPTSTR fileType = NULL;
-
- return_val = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Classes"), 0, KEY_READ, &hKey);
-
- if (return_val != ERROR_SUCCESS)
- {
- RegCloseKey(hKey);
- return -1;
- }
-
- return_val = RegOpenKeyEx(hKey, extension, 0, KEY_READ, &hInsideKey);
-
- if (return_val != ERROR_SUCCESS)
- {
- RegCloseKey(hKey);
- RegCloseKey(hInsideKey);
- return 0;
- }
-
- /* obtain string length */
- return_val = RegQueryValueEx(hInsideKey, NULL, NULL, NULL, NULL, &fileTypeLength);
-
- if (return_val == ERROR_FILE_NOT_FOUND) /* no default value, don't display */
- {
- RegCloseKey(hInsideKey);
- RegCloseKey(hKey);
- return 0;
- }
-
- if (return_val != ERROR_SUCCESS)
- {
- RegCloseKey(hInsideKey);
- RegCloseKey(hKey);
- return -2;
- }
-
- fileType = cmd_alloc(fileTypeLength * sizeof(TCHAR));
-
- /* obtain actual file type */
- return_val = RegQueryValueEx(hInsideKey, NULL, NULL, NULL, (LPBYTE) fileType, &fileTypeLength);
-
- RegCloseKey(hInsideKey);
- RegCloseKey(hKey);
-
- if (return_val != ERROR_SUCCESS)
- {
- cmd_free(fileType);
- return -2;
- }
-
- if (fileTypeLength != 0) /* if there is a default key, display relevant information */
- {
- ConOutPrintf(_T("%s=%s\n"), extension, fileType);
- }
-
- if (fileTypeLength)
- cmd_free(fileType);
-
- return 1;
-}
-
-static INT
-PrintAllAssociations()
-{
- DWORD return_val = 0;
- HKEY hKey = NULL;
- DWORD numKeys = 0;
-
- DWORD extLength = 0;
- LPTSTR extName = NULL;
- DWORD keyCtr = 0;
-
- return_val = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Classes"), 0, KEY_READ, &hKey);
-
- if (return_val != ERROR_SUCCESS)
- {
- RegCloseKey(hKey);
- return -1;
- }
-
- return_val = RegQueryInfoKey(hKey, NULL, NULL, NULL, &numKeys, &extLength, NULL, NULL, NULL, NULL, NULL, NULL);
-
- if (return_val != ERROR_SUCCESS)
- {
- RegCloseKey(hKey);
- return -2;
- }
-
- extLength++;
- extName = cmd_alloc(extLength * sizeof(TCHAR));
-
- for(keyCtr = 0; keyCtr < numKeys; keyCtr++)
- {
- DWORD buffer_size = extLength;
- return_val = RegEnumKeyEx(hKey, keyCtr, extName, &buffer_size, NULL, NULL, NULL, NULL);
-
- if (return_val == ERROR_SUCCESS || return_val == ERROR_MORE_DATA)
- {
- if (*extName == _T('.'))
- PrintAssociation(extName);
- }
- else
- {
- cmd_free(extName);
- RegCloseKey(hKey);
- return -1;
- }
- }
-
- RegCloseKey(hKey);
-
- if (extName)
- cmd_free(extName);
-
- return numKeys;
-}
-
-static INT
-AddAssociation(LPTSTR extension, LPTSTR type)
-{
- DWORD return_val;
- HKEY hKey = NULL, insideKey = NULL;
-
- return_val = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Classes"), 0, KEY_ALL_ACCESS, &hKey);
-
- if (return_val != ERROR_SUCCESS)
- return -1;
-
- return_val = RegCreateKeyEx(hKey, extension, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, NULL, &insideKey, NULL);
-
- if (return_val != ERROR_SUCCESS)
- {
- RegCloseKey(hKey);
- return -1;
- }
-
- return_val = RegSetValueEx(insideKey, NULL, 0, REG_SZ, (LPBYTE)type, (_tcslen(type) + 1) * sizeof(TCHAR));
-
- if (return_val != ERROR_SUCCESS)
- {
- RegCloseKey(insideKey);
- RegCloseKey(hKey);
- return -2;
- }
-
- RegCloseKey(insideKey);
- RegCloseKey(hKey);
- return 0;
-}
-
-
-static int
-RemoveAssociation(LPTSTR extension)
-{
- DWORD return_val;
- HKEY hKey;
-
- return_val = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Classes"), 0, KEY_ALL_ACCESS, &hKey);
-
- if (return_val != ERROR_SUCCESS)
- return -1;
-
- return_val = RegDeleteKey(hKey, extension);
-
- if (return_val != ERROR_SUCCESS)
- {
- RegCloseKey(hKey);
- return -2;
- }
-
- RegCloseKey(hKey);
- return 0;
-}
-
-
-
-INT CommandAssoc (LPTSTR param)
-{
- /* print help */
- if (!_tcsncmp (param, _T("/?"), 2))
- {
- ConOutResPaging(TRUE,STRING_ASSOC_HELP);
- return 0;
- }
-
- nErrorLevel = 0;
-
- if (_tcslen(param) == 0)
- PrintAllAssociations();
- else
- {
- LPTSTR lpEqualSign = _tcschr(param, _T('='));
- if (lpEqualSign != NULL)
- {
- LPTSTR fileType = lpEqualSign + 1;
- LPTSTR extension = cmd_alloc((lpEqualSign - param + 1) * sizeof(TCHAR));
-
- _tcsncpy(extension, param, lpEqualSign - param);
- extension[lpEqualSign - param] = (TCHAR)0;
-
- if (_tcslen(fileType) == 0)
- /* if the equal sign is the last character
- in the string, then delete the key */
- {
- RemoveAssociation(extension);
- }
- else
- /* otherwise, add the key and print out the association*/
- {
- AddAssociation( extension, fileType);
- PrintAssociation(extension);
- }
-
- cmd_free(extension);
- }
- else
- {
- /* no equal sign, print all associations */
- INT retval = PrintAssociation(param);
-
- if (retval == 0) /* if nothing printed out */
- ConOutResPrintf(STRING_ASSOC_ERROR, param);
- }
- }
-
- return 0;
-}
-
-#endif /* INCLUDE_CMD_ASSOC */
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