511 lines
11 KiB
C
511 lines
11 KiB
C
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/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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osuninst.c
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Abstract:
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Implements a GUI executable that gets added as part of Add/Remove
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Programs, to allow the user to roll back to Win9x.
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Author:
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Jim Schmidt (jimschm) 20-Nov-2000
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Revision History:
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--*/
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#include "pch.h"
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#include "resource.h"
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#include "memmsg.h"
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BOOL g_DisableUninstall;
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BOOL g_OldImage;
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HINSTANCE g_hInst;
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#define DO_UNINSTALL 1
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#define DO_CLEANUP 2
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VOID
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pGetMsgFromRc (
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OUT PWSTR Buffer,
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IN UINT BufferSize,
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IN UINT Id
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)
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{
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*Buffer = 0;
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LoadString (GetModuleHandle(NULL), Id, Buffer, BufferSize);
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}
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BOOL
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pYesNoMsgFromRcDlg (
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IN HWND Parent,
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IN UINT Id
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)
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{
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WCHAR title[256];
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WCHAR msg[1024];
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pGetMsgFromRc (title, ARRAYSIZE(title), IDS_TITLE);
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pGetMsgFromRc (msg, ARRAYSIZE(msg), Id);
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return MessageBox (Parent, msg, title, MB_YESNO|MB_ICONEXCLAMATION|MB_DEFBUTTON2) == IDYES;
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}
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BOOL
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pYesNoMsgFromMcDlg (
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IN HWND Parent,
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IN UINT Id
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)
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{
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WCHAR title[256];
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PCWSTR msg;
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BOOL result = FALSE;
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pGetMsgFromRc (title, ARRAYSIZE(title), IDS_TITLE);
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msg = NULL;
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FormatMessageW (
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FORMAT_MESSAGE_ALLOCATE_BUFFER|
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FORMAT_MESSAGE_ARGUMENT_ARRAY|
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FORMAT_MESSAGE_FROM_HMODULE,
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(PVOID) g_hInst,
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Id,
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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(PVOID) &msg,
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0,
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(va_list *) NULL // array of PCWSTR pointers
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);
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if (msg) {
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result = MessageBox (Parent, msg, title, MB_YESNO|MB_ICONEXCLAMATION|MB_DEFBUTTON2) == IDYES;
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LocalFree ((HLOCAL) msg);
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}
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return result;
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}
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VOID
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pOkBoxFromRc (
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IN HWND Parent,
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IN UINT Id
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)
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{
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WCHAR title[256];
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WCHAR msg[1024];
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pGetMsgFromRc (title, ARRAYSIZE(title), IDS_TITLE);
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pGetMsgFromRc (msg, ARRAYSIZE(msg), Id);
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MessageBox (Parent, msg, title, MB_OK|MB_ICONEXCLAMATION);
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}
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INT_PTR
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CALLBACK
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pUndoDlgProc (
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HWND hdlg,
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UINT uMsg,
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WPARAM wParam,
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LPARAM lParam
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)
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{
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WCHAR msg[1024];
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switch (uMsg) {
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case WM_INITDIALOG:
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EnableWindow (GetDlgItem (hdlg, IDOK), FALSE);
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if (g_DisableUninstall) {
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EnableWindow (GetDlgItem (hdlg, IDC_RADIO1), FALSE);
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SetFocus (GetDlgItem (hdlg, IDC_RADIO2));
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}
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break;
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case WM_COMMAND:
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switch (LOWORD (wParam)) {
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case IDC_RADIO1:
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case IDC_RADIO2:
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if (HIWORD (wParam) == BN_CLICKED) {
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EnableWindow (
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GetDlgItem (hdlg, IDOK),
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IsDlgButtonChecked (hdlg, IDC_RADIO1) ||
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IsDlgButtonChecked (hdlg, IDC_RADIO2)
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);
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}
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break;
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case IDOK:
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if (IsDlgButtonChecked (hdlg, IDC_RADIO1)) {
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EndDialog (hdlg, DO_UNINSTALL);
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} else if (IsDlgButtonChecked (hdlg, IDC_RADIO2)) {
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EndDialog (hdlg, DO_CLEANUP);
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}
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break;
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case IDCANCEL:
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EndDialog (hdlg, 0);
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return TRUE;
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}
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break;
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}
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return FALSE;
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}
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UINT
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pTranslateUninstallStatusToRc (
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UNINSTALLSTATUS Status
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)
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{
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switch (Status) {
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case Uninstall_DidNotFindRegistryEntries:
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return IDS_NO_REGISTRY;
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case Uninstall_DidNotFindDirOrFiles:
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return IDS_NO_BACKUP;
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case Uninstall_InvalidOsVersion:
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return IDS_NO_INVALID_OS;
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case Uninstall_NotEnoughPrivileges:
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return IDS_NO_ENOUGH_PRIVILEGE;
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case Uninstall_FileWasModified:
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return IDS_FILES_MODIFIED;
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case Uninstall_CantRetrieveSystemInfo:
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return IDS_CANT_RETRIEVE_SYSTEMINFO;
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case Uninstall_WrongDrive:
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return IDS_WRONG_DRIVE;
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case Uninstall_NotEnoughSpace:
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return IDS_NOT_ENOUGH_SPACE;
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case Uninstall_NewImage:
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return IDS_NEW_IMAGE;
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case Uninstall_OldImage:
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return IDS_OLD_IMAGE;
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case Uninstall_DifferentNumberOfDrives:
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return IDS_DIFFERENT_DISK_NUMBER;
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case Uninstall_NotEnoughMemory:
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return IDS_NOT_ENOUGH_MEMORY;
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case Uninstall_DifferentDriveLetter:
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return IDS_DIFFERENT_DRIVE_LETTER;
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case Uninstall_DifferentDriveFileSystem:
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return IDS_DIFFERENT_DRIVE_FILE_SYSTEM;
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case Uninstall_DifferentDriveGeometry:
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return IDS_DIFFERENT_DRIVE_GEOMETRY;
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case Uninstall_DifferentDrivePartitionInfo:
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return IDS_DIFFERENT_DRIVE_PARTITION;
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}
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return IDS_NO_BACKUP;
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}
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UINT
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pTranslateLastErrorToRc (
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VOID
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)
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{
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UINT result;
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switch (GetLastError()) {
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case ERROR_SUCCESS:
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result = 0;
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break;
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case ERROR_RESOURCE_NOT_PRESENT:
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result = IDS_NO_REGISTRY;
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break;
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case ERROR_FILE_NOT_FOUND:
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result = IDS_NO_BACKUP;
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break;
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case ERROR_OLD_WIN_VERSION:
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result = IDS_NO_INVALID_OS;
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break;
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case ERROR_ACCESS_DENIED:
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result = IDS_NO_ENOUGH_PRIVILEGE;
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break;
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case ERROR_FILE_INVALID:
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result = IDS_FILES_MODIFIED;
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break;
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case ERROR_CALL_NOT_IMPLEMENTED:
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result = ERROR_CALL_NOT_IMPLEMENTED;
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break;
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case ERROR_INVALID_TIME:
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result = IDS_NEW_IMAGE;
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break;
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case ERROR_NOACCESS:
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result = ERROR_NOACCESS;
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break;
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case ERROR_TIMEOUT:
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result = IDS_OLD_IMAGE;
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break;
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case ERROR_NOT_ENOUGH_MEMORY:
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result = IDS_NOT_ENOUGH_MEMORY;
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break;
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default:
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result = IDS_UNINSTALL_PREPARATION_FAILED;
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break;
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}
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return result;
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}
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BOOL
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pCanRemoveImage (
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UNINSTALLSTATUS Status
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)
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{
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switch (Status) {
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case Uninstall_Valid:
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case Uninstall_DidNotFindDirOrFiles:
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case Uninstall_FileWasModified:
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case Uninstall_CantRetrieveSystemInfo:
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case Uninstall_WrongDrive:
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case Uninstall_DifferentNumberOfDrives:
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case Uninstall_NotEnoughSpace:
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case Uninstall_OldImage:
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case Uninstall_NewImage:
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case Uninstall_DifferentDriveLetter:
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case Uninstall_DifferentDriveFileSystem:
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case Uninstall_DifferentDriveGeometry:
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case Uninstall_DifferentDrivePartitionInfo:
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return TRUE;
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}
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return FALSE;
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}
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BOOL
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pIsFloppyDiskInDrive(
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VOID
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)
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{
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WCHAR Drive[] = L"?:\\";
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WCHAR DriveNT[] = L"\\\\.\\?:";
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UINT i;
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HANDLE hDiskDrive;
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BOOL bDiskInDrive = FALSE;
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BOOL bResult;
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DISK_GEOMETRY diskGeometry;
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DWORD bytesReturned;
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DWORD Drives;
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for(i = 0, Drives = 0x7/*GetLogicalDrives()*/; Drives; Drives >>= 1, i++){
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if(!(Drives&1)){
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continue;
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}
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Drive[0] = 'A' + i;
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if(DRIVE_REMOVABLE != GetDriveTypeW(Drive)){
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continue;
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}
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DriveNT[4] = Drive[0];
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while(1){
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hDiskDrive = CreateFileW(DriveNT,
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GENERIC_READ,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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NULL,
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OPEN_EXISTING,
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0,
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NULL);
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if(INVALID_HANDLE_VALUE == hDiskDrive){
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break;
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}
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bResult = DeviceIoControl(hDiskDrive,
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IOCTL_DISK_GET_DRIVE_GEOMETRY,
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NULL,
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0,
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&diskGeometry,
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sizeof(diskGeometry),
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&bytesReturned,
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NULL);
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CloseHandle(hDiskDrive);
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if(bResult){
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bDiskInDrive = diskGeometry.MediaType != Unknown &&
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diskGeometry.MediaType != RemovableMedia &&
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diskGeometry.MediaType != FixedMedia;
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break;
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}
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if(ERROR_MEDIA_CHANGED != GetLastError()){
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break;
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}
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}
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if(bDiskInDrive){
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break;
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}
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}
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return bDiskInDrive;
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}
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INT
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WINAPI
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WinMain (
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HINSTANCE hInstance,
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HINSTANCE hPrevInstance,
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PSTR AnsiCmdLine,
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INT CmdShow
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)
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/*++
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Routine Description:
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The entry point to osuninst.exe.
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Arguments:
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hInstance - The instance handle of this EXE
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hPrevInstance - The previous instance handle of this EXE if it is
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running, or NULL if no other instances exist.
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AnsiCmdLine - The command line (ANSI version)
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CmdShow - The ShowWindow command passed by the shell
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Return Value:
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Returns -1 if an error occurred, or 0 if the exe completed.
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--*/
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{
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INT rc = 0;
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UNINSTALLSTATUS status;
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UINT uninstallWarningMsg;
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PCSTR p;
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INITCOMMONCONTROLSEX init = {sizeof (INITCOMMONCONTROLSEX), 0};
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BOOL unattended = FALSE;
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InitCommonControlsEx (&init);
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g_hInst = hInstance;
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#ifdef PRERELEASE
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//
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// Parse cmd line
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//
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p = _mbschr (AnsiCmdLine, '/');
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if (!p) {
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p = _mbschr (AnsiCmdLine, '-');
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}
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|
|
if (p) {
|
||
|
|
if (tolower(p[1]) == 'u') {
|
||
|
|
rc = DO_UNINSTALL;
|
||
|
|
unattended = TRUE;
|
||
|
|
} else if (tolower(p[1]) == 'c') {
|
||
|
|
rc = DO_CLEANUP;
|
||
|
|
unattended = TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
//
|
||
|
|
// Validate image
|
||
|
|
//
|
||
|
|
|
||
|
|
status = IsUninstallImageValid (Uninstall_DontCare, NULL);
|
||
|
|
|
||
|
|
if (status != Uninstall_Valid && status != Uninstall_OldImage) {
|
||
|
|
pOkBoxFromRc (NULL, pTranslateUninstallStatusToRc (status));
|
||
|
|
|
||
|
|
if (!pCanRemoveImage (status)) {
|
||
|
|
//
|
||
|
|
// Abnormal failure -- do not continue
|
||
|
|
//
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Allow user to run osuninst.exe, but restrict functionality to
|
||
|
|
// cleanup only
|
||
|
|
//
|
||
|
|
|
||
|
|
g_DisableUninstall = TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (status == Uninstall_OldImage) {
|
||
|
|
uninstallWarningMsg = MSG_DO_OLD_UNINSTALL;
|
||
|
|
} else {
|
||
|
|
uninstallWarningMsg = MSG_DO_UNINSTALL;
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Ask user what to do (if not unattended)
|
||
|
|
//
|
||
|
|
|
||
|
|
if (!rc) {
|
||
|
|
rc = DialogBox (hInstance, MAKEINTRESOURCE(IDD_UNDO), NULL, pUndoDlgProc);
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Perform action
|
||
|
|
//
|
||
|
|
|
||
|
|
if (rc == DO_CLEANUP) {
|
||
|
|
if (unattended || pYesNoMsgFromMcDlg (NULL, MSG_DO_CLEANUP)) {
|
||
|
|
RemoveUninstallImage();
|
||
|
|
}
|
||
|
|
} else if (rc == DO_UNINSTALL) {
|
||
|
|
if (unattended || ProvideUiAlerts (GetDesktopWindow())) {
|
||
|
|
if (unattended || pYesNoMsgFromMcDlg (NULL, uninstallWarningMsg)) {
|
||
|
|
if(!unattended && pIsFloppyDiskInDrive()){
|
||
|
|
pOkBoxFromRc (NULL, IDS_FLOPPYDISK_IN_DRIVE);
|
||
|
|
}
|
||
|
|
if(!ExecuteUninstall()) {
|
||
|
|
pOkBoxFromRc (NULL, pTranslateLastErrorToRc());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|