/* * Registry management * * Copyright (C) 1999 Alexandre Julliard * * Based on misc/registry.c code * Copyright (C) 1996 Marcus Meissner * Copyright (C) 1998 Matthew Becker * Copyright (C) 1999 Sylvain St-Germain * * This file is concerned about handle management and interaction with the Wine server. * Registry file I/O is in misc/registry.c. */ #include #include #include #include "winbase.h" #include "winreg.h" #include "winerror.h" #include "wine/winbase16.h" #include "wine/unicode.h" #include "wine/server.h" #include "debugtools.h" DEFAULT_DEBUG_CHANNEL(reg); /* check if value type needs string conversion (Ansi<->Unicode) */ static inline int is_string( DWORD type ) { return (type == REG_SZ) || (type == REG_EXPAND_SZ) || (type == REG_MULTI_SZ); } /****************************************************************************** * RegCreateKeyExA [ADVAPI32.@] */ DWORD WINAPI RegCreateKeyExA( HKEY hkey, LPCSTR name, DWORD reserved, LPSTR class, DWORD options, REGSAM access, SECURITY_ATTRIBUTES *sa, LPHKEY retkey, LPDWORD dispos ) { OBJECT_ATTRIBUTES attr; UNICODE_STRING nameW, classW; ANSI_STRING nameA, classA; NTSTATUS status; if (reserved) return ERROR_INVALID_PARAMETER; if (!(access & KEY_ALL_ACCESS) || (access & ~KEY_ALL_ACCESS)) return ERROR_ACCESS_DENIED; attr.Length = sizeof(attr); attr.RootDirectory = hkey; attr.ObjectName = &nameW; attr.Attributes = 0; attr.SecurityDescriptor = NULL; attr.SecurityQualityOfService = NULL; RtlInitAnsiString( &nameA, name ); RtlInitAnsiString( &classA, class ); /* FIXME: should use Unicode buffer in TEB */ if (!(status = RtlAnsiStringToUnicodeString( &nameW, &nameA, TRUE ))) { if (!(status = RtlAnsiStringToUnicodeString( &classW, &classA, TRUE ))) { status = NtCreateKey( retkey, access, &attr, 0, &classW, options, dispos ); RtlFreeUnicodeString( &classW ); } RtlFreeUnicodeString( &nameW ); } return RtlNtStatusToDosError( status ); } /****************************************************************************** * RegCreateKeyA [ADVAPI32.@] */ DWORD WINAPI RegCreateKeyA( HKEY hkey, LPCSTR name, LPHKEY retkey ) { return RegCreateKeyExA( hkey, name, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, NULL, retkey, NULL ); } /****************************************************************************** * RegOpenKeyExA [ADVAPI32.@] */ DWORD WINAPI RegOpenKeyExA( HKEY hkey, LPCSTR name, DWORD reserved, REGSAM access, LPHKEY retkey ) { OBJECT_ATTRIBUTES attr; UNICODE_STRING nameW; STRING nameA; NTSTATUS status; attr.Length = sizeof(attr); attr.RootDirectory = hkey; attr.ObjectName = &nameW; attr.Attributes = 0; attr.SecurityDescriptor = NULL; attr.SecurityQualityOfService = NULL; RtlInitAnsiString( &nameA, name ); /* FIXME: should use Unicode buffer in TEB */ if (!(status = RtlAnsiStringToUnicodeString( &nameW, &nameA, TRUE ))) { status = NtOpenKey( retkey, access, &attr ); RtlFreeUnicodeString( &nameW ); } return RtlNtStatusToDosError( status ); } /****************************************************************************** * RegOpenKeyA [ADVAPI32.@] */ DWORD WINAPI RegOpenKeyA( HKEY hkey, LPCSTR name, LPHKEY retkey ) { return RegOpenKeyExA( hkey, name, 0, KEY_ALL_ACCESS, retkey ); } /****************************************************************************** * RegEnumKeyExA [ADVAPI32.@] */ DWORD WINAPI RegEnumKeyExA( HKEY hkey, DWORD index, LPSTR name, LPDWORD name_len, LPDWORD reserved, LPSTR class, LPDWORD class_len, FILETIME *ft ) { NTSTATUS status; char buffer[256], *buf_ptr = buffer; KEY_NODE_INFORMATION *info = (KEY_NODE_INFORMATION *)buffer; DWORD total_size; TRACE( "(0x%x,%ld,%p,%p(%ld),%p,%p,%p,%p)\n", hkey, index, name, name_len, name_len ? *name_len : -1, reserved, class, class_len, ft ); if (reserved) return ERROR_INVALID_PARAMETER; status = NtEnumerateKey( hkey, index, KeyNodeInformation, buffer, sizeof(buffer), &total_size ); while (status == STATUS_BUFFER_OVERFLOW) { /* retry with a dynamically allocated buffer */ if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr ); if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size ))) return ERROR_NOT_ENOUGH_MEMORY; info = (KEY_NODE_INFORMATION *)buf_ptr; status = NtEnumerateKey( hkey, index, KeyNodeInformation, buf_ptr, total_size, &total_size ); } if (!status) { DWORD len, cls_len; RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength ); RtlUnicodeToMultiByteSize( &cls_len, (WCHAR *)(buf_ptr + info->ClassOffset), info->ClassLength ); if (ft) *ft = *(FILETIME *)&info->LastWriteTime; if (len >= *name_len || (class_len && (cls_len >= *class_len))) status = STATUS_BUFFER_OVERFLOW; else { *name_len = len; RtlUnicodeToMultiByteN( name, len, NULL, info->Name, info->NameLength ); name[len] = 0; if (class_len) { *class_len = cls_len; if (class) { RtlUnicodeToMultiByteN( class, cls_len, NULL, (WCHAR *)(buf_ptr + info->ClassOffset), info->ClassLength ); class[cls_len] = 0; } } } } if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr ); return RtlNtStatusToDosError( status ); } /****************************************************************************** * RegEnumKeyA [ADVAPI32.@] */ DWORD WINAPI RegEnumKeyA( HKEY hkey, DWORD index, LPSTR name, DWORD name_len ) { return RegEnumKeyExA( hkey, index, name, &name_len, NULL, NULL, NULL, NULL ); } /****************************************************************************** * RegQueryInfoKeyA [ADVAPI32.@] */ DWORD WINAPI RegQueryInfoKeyA( HKEY hkey, LPSTR class, LPDWORD class_len, LPDWORD reserved, LPDWORD subkeys, LPDWORD max_subkey, LPDWORD max_class, LPDWORD values, LPDWORD max_value, LPDWORD max_data, LPDWORD security, FILETIME *modif ) { NTSTATUS status; char buffer[256], *buf_ptr = buffer; KEY_FULL_INFORMATION *info = (KEY_FULL_INFORMATION *)buffer; DWORD total_size, len; TRACE( "(0x%x,%p,%ld,%p,%p,%p,%p,%p,%p,%p,%p)\n", hkey, class, class_len ? *class_len : 0, reserved, subkeys, max_subkey, values, max_value, max_data, security, modif ); if (class && !class_len && !(GetVersion() & 0x80000000 /*NT*/)) return ERROR_INVALID_PARAMETER; status = NtQueryKey( hkey, KeyFullInformation, buffer, sizeof(buffer), &total_size ); if (status && status != STATUS_BUFFER_OVERFLOW) goto done; if (class || class_len) { /* retry with a dynamically allocated buffer */ while (status == STATUS_BUFFER_OVERFLOW) { if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr ); if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size ))) return ERROR_NOT_ENOUGH_MEMORY; info = (KEY_FULL_INFORMATION *)buf_ptr; status = NtQueryKey( hkey, KeyFullInformation, buf_ptr, total_size, &total_size ); } if (status) goto done; RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info->ClassOffset), info->ClassLength); if (class_len) { if (len + 1 > *class_len) status = STATUS_BUFFER_OVERFLOW; *class_len = len; } if (class && !status) { RtlUnicodeToMultiByteN( class, len, NULL, (WCHAR *)(buf_ptr + info->ClassOffset), info->ClassLength ); class[len] = 0; } } else status = STATUS_SUCCESS; if (subkeys) *subkeys = info->SubKeys; if (max_subkey) *max_subkey = info->MaxNameLen; if (max_class) *max_class = info->MaxClassLen; if (values) *values = info->Values; if (max_value) *max_value = info->MaxValueNameLen; if (max_data) *max_data = info->MaxValueDataLen; if (modif) *modif = *(FILETIME *)&info->LastWriteTime; done: if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr ); return RtlNtStatusToDosError( status ); } /****************************************************************************** * RegCloseKey [ADVAPI32.@] * * Releases the handle of the specified key * * PARAMS * hkey [I] Handle of key to close * * RETURNS * Success: ERROR_SUCCESS * Failure: Error code */ DWORD WINAPI RegCloseKey( HKEY hkey ) { if (!hkey || hkey >= 0x80000000) return ERROR_SUCCESS; return RtlNtStatusToDosError( NtClose( hkey ) ); } /****************************************************************************** * RegDeleteKeyA [ADVAPI32.@] */ DWORD WINAPI RegDeleteKeyA( HKEY hkey, LPCSTR name ) { DWORD ret; HKEY tmp; if (!name || !*name) return NtDeleteKey( hkey ); if (!(ret = RegOpenKeyExA( hkey, name, 0, 0, &tmp ))) { ret = RtlNtStatusToDosError( NtDeleteKey( tmp ) ); RegCloseKey( tmp ); } return ret; } /****************************************************************************** * RegSetValueExA [ADVAPI32.@] */ DWORD WINAPI RegSetValueExA( HKEY hkey, LPCSTR name, DWORD reserved, DWORD type, CONST BYTE *data, DWORD count ) { UNICODE_STRING nameW; ANSI_STRING nameA; WCHAR *dataW = NULL; NTSTATUS status; if (count && is_string(type)) { /* if user forgot to count terminating null, add it (yes NT does this) */ if (data[count-1] && !data[count]) count++; } if (is_string( type )) /* need to convert to Unicode */ { DWORD lenW; RtlMultiByteToUnicodeSize( &lenW, data, count ); if (!(dataW = HeapAlloc( GetProcessHeap(), 0, lenW ))) return ERROR_OUTOFMEMORY; RtlMultiByteToUnicodeN( dataW, lenW, NULL, data, count ); count = lenW; data = (BYTE *)dataW; } RtlInitAnsiString( &nameA, name ); /* FIXME: should use Unicode buffer in TEB */ if (!(status = RtlAnsiStringToUnicodeString( &nameW, &nameA, TRUE ))) { status = NtSetValueKey( hkey, &nameW, 0, type, data, count ); RtlFreeUnicodeString( &nameW ); } if (dataW) HeapFree( GetProcessHeap(), 0, dataW ); return RtlNtStatusToDosError( status ); } /****************************************************************************** * RegSetValueA [ADVAPI32.@] */ DWORD WINAPI RegSetValueA( HKEY hkey, LPCSTR name, DWORD type, LPCSTR data, DWORD count ) { HKEY subkey = hkey; DWORD ret; TRACE("(0x%x,%s,%ld,%s,%ld)\n", hkey, debugstr_a(name), type, debugstr_a(data), count ); if (type != REG_SZ) return ERROR_INVALID_PARAMETER; if (name && name[0]) /* need to create the subkey */ { if ((ret = RegCreateKeyA( hkey, name, &subkey )) != ERROR_SUCCESS) return ret; } ret = RegSetValueExA( subkey, NULL, 0, REG_SZ, (LPBYTE)data, strlen(data)+1 ); if (subkey != hkey) RegCloseKey( subkey ); return ret; } /****************************************************************************** * RegQueryValueExA [ADVAPI32.@] * * NOTES: * the documentation is wrong: if the buffer is too small it remains untouched */ DWORD WINAPI RegQueryValueExA( HKEY hkey, LPCSTR name, LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count ) { NTSTATUS status; ANSI_STRING nameA; UNICODE_STRING nameW; DWORD total_size; char buffer[256], *buf_ptr = buffer; KEY_VALUE_PARTIAL_INFORMATION *info = (KEY_VALUE_PARTIAL_INFORMATION *)buffer; static const int info_size = info->Data - (UCHAR *)info; TRACE("(0x%x,%s,%p,%p,%p,%p=%ld)\n", hkey, debugstr_a(name), reserved, type, data, count, count ? *count : 0 ); if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER; RtlInitAnsiString( &nameA, name ); /* FIXME: should use Unicode buffer in TEB */ if ((status = RtlAnsiStringToUnicodeString( &nameW, &nameA, TRUE ))) return RtlNtStatusToDosError(status); status = NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, buffer, sizeof(buffer), &total_size ); if (status && status != STATUS_BUFFER_OVERFLOW) goto done; /* we need to fetch the contents for a string type even if not requested, * because we need to compute the length of the ASCII string. */ if (data || is_string(info->Type)) { /* retry with a dynamically allocated buffer */ while (status == STATUS_BUFFER_OVERFLOW) { if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr ); if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size ))) { status = STATUS_NO_MEMORY; goto done; } info = (KEY_VALUE_PARTIAL_INFORMATION *)buf_ptr; status = NtQueryValueKey( hkey, &nameW, KeyValuePartialInformation, buf_ptr, total_size, &total_size ); } if (!status) { if (is_string(info->Type)) { DWORD len = WideCharToMultiByte( CP_ACP, 0, (WCHAR *)(buf_ptr + info_size), (total_size - info_size) /sizeof(WCHAR), NULL, 0, NULL, NULL ); if (data && len) { if (len > *count) status = STATUS_BUFFER_OVERFLOW; else { WideCharToMultiByte( CP_ACP, 0, (WCHAR *)(buf_ptr + info_size), (total_size - info_size) /sizeof(WCHAR), data, len, NULL, NULL ); /* if the type is REG_SZ and data is not 0-terminated * and there is enough space in the buffer NT appends a \0 */ if (len < *count && data[len-1]) data[len] = 0; } } total_size = len + info_size; } else if (data) { if (total_size - info_size > *count) status = STATUS_BUFFER_OVERFLOW; else memcpy( data, buf_ptr + info_size, total_size - info_size ); } } else if (status != STATUS_BUFFER_OVERFLOW) goto done; } if (type) *type = info->Type; if (count) *count = total_size - info_size; done: if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr ); RtlFreeUnicodeString( &nameW ); return RtlNtStatusToDosError(status); } /****************************************************************************** * RegQueryValueA [ADVAPI32.@] */ DWORD WINAPI RegQueryValueA( HKEY hkey, LPCSTR name, LPSTR data, LPLONG count ) { DWORD ret; HKEY subkey = hkey; TRACE("(%x,%s,%p,%ld)\n", hkey, debugstr_a(name), data, count ? *count : 0 ); if (name && name[0]) { if ((ret = RegOpenKeyA( hkey, name, &subkey )) != ERROR_SUCCESS) return ret; } ret = RegQueryValueExA( subkey, NULL, NULL, NULL, (LPBYTE)data, count ); if (subkey != hkey) RegCloseKey( subkey ); if (ret == ERROR_FILE_NOT_FOUND) { /* return empty string if default value not found */ if (data) *data = 0; if (count) *count = 1; ret = ERROR_SUCCESS; } return ret; } /****************************************************************************** * RegEnumValueA [ADVAPI32.@] */ DWORD WINAPI RegEnumValueA( HKEY hkey, DWORD index, LPSTR value, LPDWORD val_count, LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count ) { NTSTATUS status; DWORD total_size; char buffer[256], *buf_ptr = buffer; KEY_VALUE_FULL_INFORMATION *info = (KEY_VALUE_FULL_INFORMATION *)buffer; static const int info_size = (char *)info->Name - (char *)info; TRACE("(%x,%ld,%p,%p,%p,%p,%p,%p)\n", hkey, index, value, val_count, reserved, type, data, count ); /* NT only checks count, not val_count */ if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER; total_size = info_size + (MAX_PATH + 1) * sizeof(WCHAR); if (data) total_size += *count; total_size = min( sizeof(buffer), total_size ); status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation, buffer, total_size, &total_size ); if (status && status != STATUS_BUFFER_OVERFLOW) goto done; /* we need to fetch the contents for a string type even if not requested, * because we need to compute the length of the ASCII string. */ if (value || data || is_string(info->Type)) { /* retry with a dynamically allocated buffer */ while (status == STATUS_BUFFER_OVERFLOW) { if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr ); if (!(buf_ptr = HeapAlloc( GetProcessHeap(), 0, total_size ))) return ERROR_NOT_ENOUGH_MEMORY; info = (KEY_VALUE_FULL_INFORMATION *)buf_ptr; status = NtEnumerateValueKey( hkey, index, KeyValueFullInformation, buf_ptr, total_size, &total_size ); } if (status) goto done; if (value) { DWORD len; RtlUnicodeToMultiByteSize( &len, info->Name, info->NameLength ); if (len >= *val_count) { status = STATUS_BUFFER_OVERFLOW; goto done; } RtlUnicodeToMultiByteN( value, len, NULL, info->Name, info->NameLength ); value[len] = 0; *val_count = len; } if (is_string(info->Type)) { DWORD len; RtlUnicodeToMultiByteSize( &len, (WCHAR *)(buf_ptr + info->DataOffset), total_size - info->DataOffset ); if (data && len) { if (len > *count) { status = STATUS_BUFFER_OVERFLOW; goto done; } RtlUnicodeToMultiByteN( data, len, NULL, (WCHAR *)(buf_ptr + info->DataOffset), total_size - info->DataOffset ); /* if the type is REG_SZ and data is not 0-terminated * and there is enough space in the buffer NT appends a \0 */ if (len < *count && data[len-1]) data[len] = 0; } info->DataLength = len; } else if (data) { if (total_size - info->DataOffset > *count) status = STATUS_BUFFER_OVERFLOW; else memcpy( data, buf_ptr + info->DataOffset, total_size - info->DataOffset ); } } else status = STATUS_SUCCESS; if (type) *type = info->Type; if (count) *count = info->DataLength; done: if (buf_ptr != buffer) HeapFree( GetProcessHeap(), 0, buf_ptr ); return RtlNtStatusToDosError(status); } /****************************************************************************** * RegDeleteValueA [ADVAPI32.@] */ DWORD WINAPI RegDeleteValueA( HKEY hkey, LPCSTR name ) { UNICODE_STRING nameW; STRING nameA; NTSTATUS status; RtlInitAnsiString( &nameA, name ); /* FIXME: should use Unicode buffer in TEB */ if (!(status = RtlAnsiStringToUnicodeString( &nameW, &nameA, TRUE ))) { status = NtDeleteValueKey( hkey, &nameW ); RtlFreeUnicodeString( &nameW ); } return RtlNtStatusToDosError( status ); } /****************************************************************************** * RegLoadKeyA [ADVAPI32.@] */ LONG WINAPI RegLoadKeyA( HKEY hkey, LPCSTR subkey, LPCSTR filename ) { HANDLE file; WCHAR buffer[MAX_PATH]; DWORD ret, len, err = GetLastError(); TRACE( "(%x,%s,%s)\n", hkey, debugstr_a(subkey), debugstr_a(filename) ); if (!filename || !*filename) return ERROR_INVALID_PARAMETER; if (!subkey || !*subkey) return ERROR_INVALID_PARAMETER; if (!(len = MultiByteToWideChar( CP_ACP, 0, subkey, strlen(subkey), buffer, MAX_PATH ))) return ERROR_INVALID_PARAMETER; if ((file = CreateFileA( filename, GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0 )) == INVALID_HANDLE_VALUE) { ret = GetLastError(); goto done; } SERVER_START_REQ( load_registry ) { req->hkey = hkey; req->file = file; wine_server_add_data( req, buffer, len * sizeof(WCHAR) ); ret = RtlNtStatusToDosError( wine_server_call(req) ); } SERVER_END_REQ; CloseHandle( file ); done: SetLastError( err ); /* restore the last error code */ return ret; } /****************************************************************************** * RegSaveKeyA [ADVAPI32.@] * * PARAMS * hkey [I] Handle of key where save begins * lpFile [I] Address of filename to save to * sa [I] Address of security structure */ LONG WINAPI RegSaveKeyA( HKEY hkey, LPCSTR file, LPSECURITY_ATTRIBUTES sa ) { char buffer[1024]; int count = 0; LPSTR name; DWORD ret, err; HANDLE handle; TRACE( "(%x,%s,%p)\n", hkey, debugstr_a(file), sa ); if (!file || !*file) return ERROR_INVALID_PARAMETER; err = GetLastError(); GetFullPathNameA( file, sizeof(buffer), buffer, &name ); for (;;) { sprintf( name, "reg%04x.tmp", count++ ); handle = CreateFileA( buffer, GENERIC_WRITE, 0, NULL, CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0 ); if (handle != INVALID_HANDLE_VALUE) break; if ((ret = GetLastError()) != ERROR_ALREADY_EXISTS) goto done; /* Something gone haywire ? Please report if this happens abnormally */ if (count >= 100) MESSAGE("Wow, we are already fiddling with a temp file %s with an ordinal as high as %d !\nYou might want to delete all corresponding temp files in that directory.\n", buffer, count); } SERVER_START_REQ( save_registry ) { req->hkey = hkey; req->file = handle; ret = RtlNtStatusToDosError( wine_server_call( req ) ); } SERVER_END_REQ; CloseHandle( handle ); if (!ret) { if (!MoveFileExA( buffer, file, MOVEFILE_REPLACE_EXISTING )) { ERR( "Failed to move %s to %s\n", buffer, file ); ret = GetLastError(); } } if (ret) DeleteFileA( buffer ); done: SetLastError( err ); /* restore last error code */ return ret; }