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- Display an error message if any edit operation fails.

Browse source 
- Make key renaming fail if the destination key already exists.
- Better error recovery in the case where SHCopyKey fails.
This commit is contained in:
Robert Shearman 2005-03-21 10:29:09 +00:00 committed by Alexandre Julliard
parent 967f11dd8d
commit 06913278f1
1 changed files with 85 additions and 19 deletions
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104
programs/regedit/edit.c
View file

@ -76,6 +76,23 @@ void error(HWND hwnd, INT resId, ...)
va_end(ap);
}
static void error_code_messagebox(HWND hwnd, DWORD error_code)
{
LPTSTR lpMsgBuf;
DWORD status;
TCHAR title[256];
static const TCHAR fallback[] = TEXT("Error displaying error message.\n");
if (!LoadString(hInst, IDS_ERROR, title, COUNT_OF(title)))
lstrcpy(title, TEXT("Error"));
status = FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
NULL, error_code, 0, (LPTSTR)&lpMsgBuf, 0, NULL);
if (!status)
lpMsgBuf = (LPTSTR)fallback;
MessageBox(hwnd, lpMsgBuf, title, MB_OK | MB_ICONERROR);
if (lpMsgBuf != fallback)
LocalFree(lpMsgBuf);
}
BOOL change_dword_base(HWND hwndDlg, BOOL toHex)
{
TCHAR buf[128];
@ -179,7 +196,10 @@ BOOL CreateKey(HWND hwnd, HKEY hKeyRoot, LPCTSTR keyPath, LPTSTR keyName)
HKEY hKey;
lRet = RegOpenKeyEx(hKeyRoot, keyPath, 0, KEY_CREATE_SUB_KEY, &hKey);
if (lRet != ERROR_SUCCESS) return FALSE;
if (lRet != ERROR_SUCCESS) {
error_code_messagebox(hwnd, lRet);
goto done;
}
if (!LoadString(GetModuleHandle(0), IDS_NEWKEY, newKey, COUNT_OF(newKey))) goto done;
@ -193,7 +213,11 @@ BOOL CreateKey(HWND hwnd, HKEY hKeyRoot, LPCTSTR keyPath, LPTSTR keyName)
if (lRet == ERROR_SUCCESS) goto done;
lRet = RegCreateKey(hKey, keyName, &retKey);
if (lRet != ERROR_SUCCESS) goto done;
if (lRet != ERROR_SUCCESS) {
error_code_messagebox(hwnd, lRet);
goto done;
}
result = TRUE;
done:
@ -209,7 +233,10 @@ BOOL ModifyValue(HWND hwnd, HKEY hKeyRoot, LPCTSTR keyPath, LPCTSTR valueName)
HKEY hKey;
lRet = RegOpenKeyEx(hKeyRoot, keyPath, 0, KEY_READ | KEY_SET_VALUE, &hKey);
if (lRet != ERROR_SUCCESS) return FALSE;
if (lRet != ERROR_SUCCESS) {
error_code_messagebox(hwnd, lRet);
return FALSE;
}
editValueName = valueName ? valueName : g_pszDefaultValueName;
if(!(stringValueData = read_value(hwnd, hKey, valueName, &type, 0))) goto done;
@ -218,15 +245,17 @@ BOOL ModifyValue(HWND hwnd, HKEY hKeyRoot, LPCTSTR keyPath, LPCTSTR valueName)
if (DialogBox(0, MAKEINTRESOURCE(IDD_EDIT_STRING), hwnd, modify_dlgproc) == IDOK) {
lRet = RegSetValueEx(hKey, valueName, 0, type, stringValueData, lstrlen(stringValueData) + 1);
if (lRet == ERROR_SUCCESS) result = TRUE;
else error_code_messagebox(hwnd, lRet);
}
} else if ( type == REG_DWORD ) {
wsprintf(stringValueData, isDecimal ? "%ld" : "%lx", *((DWORD*)stringValueData));
if (DialogBox(0, MAKEINTRESOURCE(IDD_EDIT_DWORD), hwnd, modify_dlgproc) == IDOK) {
DWORD val;
if (_stscanf(stringValueData, isDecimal ? "%ld" : "%lx", &val)) {
DWORD val;
if (_stscanf(stringValueData, isDecimal ? "%ld" : "%lx", &val)) {
lRet = RegSetValueEx(hKey, valueName, 0, type, (BYTE*)&val, sizeof(val));
if (lRet == ERROR_SUCCESS) result = TRUE;
}
if (lRet == ERROR_SUCCESS) result = TRUE;
else error_code_messagebox(hwnd, lRet);
}
}
} else {
error(hwnd, IDS_UNSUPPORTED_TYPE, type);
@ -246,7 +275,10 @@ BOOL DeleteKey(HWND hwnd, HKEY hKeyRoot, LPCTSTR keyPath)
HKEY hKey;
lRet = RegOpenKeyEx(hKeyRoot, keyPath, 0, KEY_READ|KEY_SET_VALUE, &hKey);
if (lRet != ERROR_SUCCESS) return FALSE;
if (lRet != ERROR_SUCCESS) {
error_code_messagebox(hwnd, lRet);
return FALSE;
}
if (messagebox(hwnd, MB_YESNO | MB_ICONEXCLAMATION, IDS_DELETE_BOX_TITLE, IDS_DELETE_BOX_TEXT, keyPath) != IDYES)
goto done;
@ -298,7 +330,10 @@ BOOL CreateValue(HWND hwnd, HKEY hKeyRoot, LPCTSTR keyPath, DWORD valueType, LPT
HKEY hKey;
lRet = RegOpenKeyEx(hKeyRoot, keyPath, 0, KEY_READ | KEY_SET_VALUE, &hKey);
if (lRet != ERROR_SUCCESS) return FALSE;
if (lRet != ERROR_SUCCESS) {
error_code_messagebox(hwnd, lRet);
return FALSE;
}
if (!LoadString(GetModuleHandle(0), IDS_NEWVALUE, newValue, COUNT_OF(newValue))) goto done;
@ -306,12 +341,18 @@ BOOL CreateValue(HWND hwnd, HKEY hKeyRoot, LPCTSTR keyPath, DWORD valueType, LPT
for (valueNum = 1; valueNum < 100; valueNum++) {
wsprintf(valueName, newValue, valueNum);
lRet = RegQueryValueEx(hKey, valueName, 0, 0, 0, 0);
if (lRet != ERROR_SUCCESS) break;
if (lRet == ERROR_FILE_NOT_FOUND) break;
}
if (lRet != ERROR_FILE_NOT_FOUND) {
error_code_messagebox(hwnd, lRet);
goto done;
}
if (lRet == ERROR_SUCCESS) goto done;
lRet = RegSetValueEx(hKey, valueName, 0, valueType, (BYTE*)&valueDword, sizeof(DWORD));
if (lRet != ERROR_SUCCESS) goto done;
if (lRet != ERROR_SUCCESS) {
error_code_messagebox(hwnd, lRet);
goto done;
}
result = TRUE;
done:
@ -331,16 +372,23 @@ BOOL RenameValue(HWND hwnd, HKEY hKeyRoot, LPCTSTR keyPath, LPCTSTR oldName, LPC
if (!newName) return FALSE;
lRet = RegOpenKeyEx(hKeyRoot, keyPath, 0, KEY_READ | KEY_SET_VALUE, &hKey);
if (lRet != ERROR_SUCCESS) return FALSE;
if (lRet != ERROR_SUCCESS) {
error_code_messagebox(hwnd, lRet);
return FALSE;
}
/* check if value already exists */
if (check_value(hwnd, hKey, newName)) goto done;
value = read_value(hwnd, hKey, oldName, &type, &len);
if(!value) goto done;
lRet = RegSetValueEx(hKey, newName, 0, type, (BYTE*)value, len);
if (lRet != ERROR_SUCCESS) goto done;
if (lRet != ERROR_SUCCESS) {
error_code_messagebox(hwnd, lRet);
goto done;
}
lRet = RegDeleteValue(hKey, oldName);
if (lRet != ERROR_SUCCESS) {
RegDeleteValue(hKey, newName);
error_code_messagebox(hwnd, lRet);
goto done;
}
result = TRUE;
@ -360,6 +408,7 @@ BOOL RenameKey(HWND hwnd, HKEY hRootKey, LPCTSTR keyPath, LPCTSTR newName)
HKEY destKey = 0;
BOOL result = FALSE;
LONG lRet;
DWORD disposition;
if (!keyPath || !newName) return FALSE;
@ -371,21 +420,38 @@ BOOL RenameKey(HWND hwnd, HKEY hRootKey, LPCTSTR keyPath, LPCTSTR newName)
srcSubKey = strrchr(parentPath, '\\') + 1;
*((LPTSTR)srcSubKey - 1) = 0;
lRet = RegOpenKeyEx(hRootKey, parentPath, 0, KEY_READ | KEY_CREATE_SUB_KEY, &parentKey);
if (lRet != ERROR_SUCCESS) goto done;
if (lRet != ERROR_SUCCESS) {
error_code_messagebox(hwnd, lRet);
goto done;
}
}
/* The following fails if the old name is the same as the new name. */
if (!strcmp(srcSubKey, newName)) goto done;
lRet = RegCreateKey(parentKey, newName, &destKey);
if (lRet != ERROR_SUCCESS) goto done;
lRet = RegCreateKeyEx(parentKey, newName, 0, NULL, REG_OPTION_NON_VOLATILE,
KEY_WRITE, NULL /* FIXME */, &destKey, &disposition);
if (disposition == REG_OPENED_EXISTING_KEY)
lRet = ERROR_FILE_EXISTS; /* FIXME: we might want a better error message than this */
if (lRet != ERROR_SUCCESS) {
error_code_messagebox(hwnd, lRet);
goto done;
}
/* FIXME: SHCopyKey does not copy the security attributes */
lRet = SHCopyKey(parentKey, srcSubKey, destKey, 0);
if (lRet != ERROR_SUCCESS) goto done;
if (lRet != ERROR_SUCCESS) {
RegCloseKey(destKey);
RegDeleteKey(parentKey, newName);
error_code_messagebox(hwnd, lRet);
goto done;
}
lRet = SHDeleteKey(hRootKey, keyPath);
if (lRet != ERROR_SUCCESS) goto done;
if (lRet != ERROR_SUCCESS) {
error_code_messagebox(hwnd, lRet);
goto done;
}
result = TRUE;