/* * cns.c * * Tabs 4 * * Main routine of the Kerberos user interface. Also handles * all dialog level management functions. * * Copyright 1994 by the Massachusetts Institute of Technology. * * For copying and distribution information, please see the file * . */ #include "mit-copyright.h" #include #include #include #include #include #include #include #define DEFINE_SOCKADDR #include "krb.h" #include "kadm.h" #include "org.h" #include "cns.h" #include "tktlist.h" /* * Constants */ #define BLOCK_MAX_SEC 30 /* Blocking timeout duration */ #define KWIN_UPDATE_PERIOD 30000 /* Every 30 seconds update the screen */ #define TIME_BUFFER 300 /* Pop-up time buffer in seconds */ #define WM_KWIN_SETNAME (WM_USER+100) /* Sets the name fields in the dialog */ enum { /* Actions after login */ LOGIN_AND_EXIT, LOGIN_AND_MINIMIZE, LOGIN_AND_RUN, }; /* * Globals */ static HICON kwin_icons[MAX_ICONS]; /* Icons depicting time */ static HFONT hfontdialog = NULL; /* Font in which the dialog is drawn. */ static HFONT hfonticon = NULL; /* Font for icon label */ static HINSTANCE hinstance; static int dlgncmdshow; /* ncmdshow from WinMain */ static char confname[FILENAME_MAX]; /* current krb.conf location */ static char realmsname[FILENAME_MAX]; /* current krb.realms location */ static UINT wm_kerberos_changed; /* Registered message for cache changing */ static int action; /* After login actions */ static UINT kwin_timer_id; /* Timer being used for update */ static BOOL alert; /* Actions on ticket expiration */ static BOOL beep; static BOOL alerted; /* TRUE when user already alerted */ static BOOL isblocking = FALSE; /* TRUE when blocked in WinSock */ static DWORD blocking_end_time; /* Ending tick count for blocking timeout */ static FARPROC hook_instance; /* Intance handle for blocking hook function */ /* * Function: Called during blocking operations. Implement a timeout * if nothing occurs within the specified time, cancel the blocking * operation. Also permit the user to press escape in order to * cancel the blocking operation. * * Returns: TRUE if we got and dispatched a message, FALSE otherwise. */ BOOL __export CALLBACK blocking_hook_proc(void) { MSG msg; BOOL rc; if (GetTickCount() > blocking_end_time) { WSACancelBlockingCall(); return FALSE; } rc = (BOOL) PeekMessage(&msg, NULL, 0, 0, PM_REMOVE); if (!rc) return FALSE; if (msg.message == WM_KEYDOWN && msg.wParam == VK_ESCAPE) { WSACancelBlockingCall(); blocking_end_time = msg.time - 1; return FALSE; } TranslateMessage(&msg); DispatchMessage(&msg); return TRUE; } /* blocking_hook_proc */ /* * Function: Set up a blocking hook function. * * Parameters: * timeout - # of seconds to block for before cancelling. */ static void start_blocking_hook( int timeout) { FARPROC proc; if (isblocking) return; isblocking = TRUE; blocking_end_time = GetTickCount() + (1000 * timeout); hook_instance = MakeProcInstance(blocking_hook_proc, hinstance); proc = WSASetBlockingHook(hook_instance); assert(proc != NULL); } /* start_blocking_hook */ /* * Function: End the blocking hook fuction set up above. */ static void end_blocking_hook(void) { FreeProcInstance(hook_instance); WSAUnhookBlockingHook(); isblocking = FALSE; } /* end_blocking_hook */ /* * Function: Centers the specified window on the screen. * * Parameters: * hwnd - the window to center on the screen. */ static void center_dialog( HWND hwnd) { int scrwidth, scrheight; int dlgwidth, dlgheight; RECT r; HDC hdc; if (hwnd == NULL) return; GetWindowRect(hwnd, &r); dlgwidth = r.right - r.left; dlgheight = r.bottom - r.top ; hdc = GetDC(NULL); scrwidth = GetDeviceCaps(hdc, HORZRES); scrheight = GetDeviceCaps(hdc, VERTRES); ReleaseDC(NULL, hdc); r.left = (scrwidth - dlgwidth) / 2; r.top = (scrheight - dlgheight) / 2; MoveWindow(hwnd, r.left, r.top, dlgwidth, dlgheight, TRUE); } /* center_dialog */ /* * Function: Positions the kwin dialog either to the saved location * or the center of the screen if no saved location. * * Parameters: * hwnd - the window to center on the screen. */ static void position_dialog( HWND hwnd) { int n; int scrwidth, scrheight; HDC hdc; char position[256]; int x, y, cx, cy; if (hwnd == NULL) return; hdc = GetDC(NULL); scrwidth = GetDeviceCaps(hdc, HORZRES); scrheight = GetDeviceCaps(hdc, VERTRES); ReleaseDC(NULL, hdc); GetPrivateProfileString(INI_DEFAULTS, INI_POSITION, "", position, sizeof(position), KERBEROS_INI); n = sscanf(position, " [%d , %d , %d , %d", &x, &y, &cx, &cy); if (n != 4 || x > scrwidth || y > scrheight || x + cx < 0 || y + cy < 0) center_dialog(hwnd); else MoveWindow(hwnd, x, y, cx, cy, TRUE); } /* position_dialog */ /* * Function: Set font of all dialog items. * * Parameters: * hwnd - the dialog to set the font of */ static void set_dialog_font( HWND hwnd, HFONT hfont) { hwnd = GetWindow(hwnd, GW_CHILD); while (hwnd != NULL) { SendMessage(hwnd, WM_SETFONT, (WPARAM) hfont, 0); hwnd = GetWindow(hwnd, GW_HWNDNEXT); } } /* set_dialog_font */ /* * Function: Trim leading and trailing white space from a string. * * Parameters: * s - the string to trim. */ void trim( char *s) { int l; int i; for (i = 0; s[i]; i++) if (s[i] != ' ' && s[i] != '\t') break; l = strlen(&s[i]); memmove(s, &s[i], l + 1); for (l--; l >= 0; l--) { if (s[l] != ' ' && s[l] != '\t') break; } s[l + 1] = 0; } /* trim */ /* * Function: This routine figures out the current time epoch and * returns the conversion factor. It exists because Microloss * screwed the pooch on the time() and _ftime() calls in its release * 7.0 libraries. They changed the epoch to Dec 31, 1899! */ time_t kwin_get_epoch(void) { static struct tm jan_1_70 = {0, 0, 0, 1, 0, 70}; time_t epoch = 0; epoch = -mktime(&jan_1_70); /* Seconds til 1970 localtime */ epoch += _timezone; /* Seconds til 1970 GMT */ return epoch; } /* kwin_get_epoch */ /* * Function: Save the credentials for later restoration. * * Parameters: * c - Returned pointer to saved credential cache. * * pname - Returned as principal name of session. * * pinstance - Returned as principal instance of session. * * ncred - Returned number of credentials saved. */ static void push_credentials( CREDENTIALS **cp, char *pname, char *pinstance, int *ncred) { int i; char service[ANAME_SZ]; char instance[INST_SZ]; char realm[REALM_SZ]; CREDENTIALS *c; if (krb_get_tf_fullname ((char *) 0, pname, pinstance, (char *) 0) != KSUCCESS) { pname[0] = 0; pinstance[0] = 0; } *ncred = krb_get_num_cred(); if (*ncred <= 0) return; c= malloc(*ncred * sizeof(CREDENTIALS)); assert(c != NULL); if (c == NULL) { *ncred = 0; return; } for (i = 0; i < *ncred; i++) { krb_get_nth_cred(service, instance, realm, i + 1); krb_get_cred(service, instance, realm, &c[i]); } *cp = c; } /* push_credentials */ /* * Function: Restore the saved credentials. * * c - Pointer to saved credential cache. * * pname - Principal name of session. * * pinstance - Principal instance of session. * * ncred - Number of credentials saved. */ static void pop_credentials( CREDENTIALS *c, char *pname, char *pinstance, int ncred) { int i; if (pname[0]) in_tkt(pname, pinstance); else dest_tkt(); if (ncred <= 0) return; for (i = 0; i < ncred; i++) { krb_save_credentials(c[i].service, c[i].instance, c[i].realm, c[i].session, c[i].lifetime, c[i].kvno, &(c[i].ticket_st), c[i].issue_date); } free(c); } /* pop_credentials */ /* * Function: Changes the password. * * Parameters: * hwnd - the current window from which command was invoked. * * name - name of user to change password for * * instance - instance of user to change password for * * realm - realm in which to change password * * oldpw - the old password * * newpw - the new password to change to * * Returns: TRUE if change took place, FALSE otherwise. */ static BOOL change_password( HWND hwnd, char *name, char *instance, char *realm, char *oldpw, char *newpw) { des_cblock new_key; char *ret_st; int krc; char *p; CREDENTIALS *c; int ncred; char pname[ANAME_SZ]; char pinstance[INST_SZ]; push_credentials(&c, pname, pinstance, &ncred); krc = krb_get_pw_in_tkt( name, instance, realm, PWSERV_NAME, KADM_SINST, 1, oldpw); if (krc != KSUCCESS) { if (krc == INTK_BADPW) p = "Old password is incorrect"; else p = krb_get_err_text(krc); pop_credentials(c, pname, pinstance, ncred); MessageBox(hwnd, p, "", MB_OK | MB_ICONEXCLAMATION); return FALSE; } krc = kadm_init_link(PWSERV_NAME, KRB_MASTER, realm); if (krc != KSUCCESS) { pop_credentials(c, pname, pinstance, ncred); MessageBox(hwnd, kadm_get_err_text(krc), "", MB_OK | MB_ICONEXCLAMATION); return FALSE; } des_string_to_key(newpw, new_key); krc = kadm_change_pw2(new_key, newpw, &ret_st); pop_credentials(c, pname, pinstance, ncred); if (ret_st != NULL) free(ret_st); if (krc != KSUCCESS) { MessageBox(hwnd, kadm_get_err_text(krc), "", MB_OK | MB_ICONEXCLAMATION); return FALSE; } return TRUE; } /* change_password */ /* * Function: Process WM_COMMAND messages for the password dialog. * * Parameters: * hwnd - the window recieving the message. * * wparam - id of the command item * * lparam - LOWORD=hwnd of control, HIWORD=notification message. * * Returns: TRUE if initialized sucessfully, false otherwise. */ static LONG password_command( HWND hwnd, WPARAM wparam, LPARAM lparam) { char name[ANAME_SZ]; char instance[INST_SZ]; char realm[REALM_SZ]; char oldpw[MAX_KPW_LEN]; char newpw1[MAX_KPW_LEN]; char newpw2[MAX_KPW_LEN]; HCURSOR hcursor; BOOL b; int id; if (HIWORD(lparam) != BN_CLICKED) { GetDlgItemText(hwnd, IDD_PASSWORD_NAME, name, sizeof(name)); trim(name); GetDlgItemText(hwnd, IDD_PASSWORD_REALM, realm, sizeof(realm)); trim(realm); GetDlgItemText(hwnd, IDD_OLD_PASSWORD, oldpw, sizeof(oldpw)); GetDlgItemText(hwnd, IDD_NEW_PASSWORD1, newpw1, sizeof(newpw1)); GetDlgItemText(hwnd, IDD_NEW_PASSWORD2, newpw2, sizeof(newpw2)); b = strlen(name) && strlen(realm) && strlen(oldpw) && strlen(newpw1) && strlen(newpw2); EnableWindow(GetDlgItem(hwnd, IDOK), b); id = (b) ? IDOK : IDD_PASSWORD_CR; SendMessage(hwnd, DM_SETDEFID, id, 0); return FALSE; } switch (wparam) { case IDOK: if (isblocking) return TRUE; GetDlgItemText(hwnd, IDD_PASSWORD_NAME, name, sizeof(name)); trim(name); GetDlgItemText(hwnd, IDD_PASSWORD_INSTANCE, instance, sizeof(instance)); trim(instance); GetDlgItemText(hwnd, IDD_PASSWORD_REALM, realm, sizeof(realm)); trim(realm); GetDlgItemText(hwnd, IDD_OLD_PASSWORD, oldpw, sizeof(oldpw)); GetDlgItemText(hwnd, IDD_NEW_PASSWORD1, newpw1, sizeof(newpw1)); GetDlgItemText(hwnd, IDD_NEW_PASSWORD2, newpw2, sizeof(newpw2)); if (strcmp(newpw1, newpw2) != 0) { MessageBox(hwnd, "The two passwords you entered don't match!", "", MB_OK | MB_ICONEXCLAMATION); SetDlgItemText(hwnd, IDD_NEW_PASSWORD1, ""); SetDlgItemText(hwnd, IDD_NEW_PASSWORD2, ""); PostMessage(hwnd, WM_NEXTDLGCTL, GetDlgItem(hwnd, IDD_NEW_PASSWORD1), MAKELONG(1, 0)); return TRUE; } hcursor = SetCursor(LoadCursor(NULL, IDC_WAIT)); start_blocking_hook(BLOCK_MAX_SEC); if (change_password(hwnd, name, instance, realm, oldpw, newpw1)) EndDialog(hwnd, IDOK); else PostMessage(hwnd, WM_NEXTDLGCTL, GetDlgItem(hwnd, IDD_OLD_PASSWORD), MAKELONG(1, 0)); end_blocking_hook(); SetCursor(hcursor); return TRUE; case IDCANCEL: if (isblocking) WSACancelBlockingCall(); EndDialog(hwnd, IDCANCEL); return TRUE; case IDD_PASSWORD_CR: id = GetDlgCtrlID(GetFocus()); assert(id != 0); if (id == IDD_NEW_PASSWORD2) PostMessage(hwnd, WM_NEXTDLGCTL, GetDlgItem(hwnd, IDD_PASSWORD_NAME), MAKELONG(1, 0)); else PostMessage(hwnd, WM_NEXTDLGCTL, 0, 0); return TRUE; } return FALSE; } /* password_command */ /* * Function: Process WM_INITDIALOG messages for the password dialog. * Set up all initial dialog values from the parent dialog. * * Parameters: * hwnd - the window recieving the message. * * wparam - handle of the control for focus. * * lparam - lparam from dialog box call. * * Returns: TRUE if we didn't set the focus here, * FALSE if we did. */ static BOOL password_initdialog( HWND hwnd, WPARAM wparam, LPARAM lparam) { char name[ANAME_SZ]; char instance[INST_SZ]; char realm[REALM_SZ]; HWND hwndparent; int id; center_dialog(hwnd); set_dialog_font(hwnd, hfontdialog); hwndparent = GetParent(hwnd); assert(hwndparent != NULL); GetDlgItemText(hwndparent, IDD_LOGIN_NAME, name, sizeof(name)); trim(name); SetDlgItemText(hwnd, IDD_PASSWORD_NAME, name); GetDlgItemText(hwndparent, IDD_LOGIN_INSTANCE, instance, sizeof(instance)); trim(instance); SetDlgItemText(hwnd, IDD_PASSWORD_INSTANCE, instance); GetDlgItemText(hwndparent, IDD_LOGIN_REALM, realm, sizeof(realm)); trim(realm); SetDlgItemText(hwnd, IDD_PASSWORD_REALM, realm); if (strlen(name) == 0) id = IDD_PASSWORD_NAME; else if (strlen(realm) == 0) id = IDD_PASSWORD_REALM; else id = IDD_OLD_PASSWORD; SetFocus(GetDlgItem(hwnd, id)); return FALSE; } /* password_initdialog */ /* * Function: Process dialog specific messages for the password dialog. * * Parameters: * hwnd - the dialog receiving the message. * * message - the message to process. * * wparam - wparam of the message. * * lparam - lparam of the message. * * Returns: TRUE if message handled locally, FALSE otherwise. */ static BOOL CALLBACK password_dlg_proc( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam) { LRESULT rc; switch (message) { case WM_INITDIALOG: return password_initdialog(hwnd, wparam, lparam); case WM_COMMAND: password_command(hwnd, wparam, lparam); return (BOOL) rc; case WM_SETCURSOR: if (isblocking) { SetCursor(LoadCursor(NULL, IDC_WAIT)); SetWindowLong(hwnd, DWL_MSGRESULT, TRUE); return TRUE; } break; } return FALSE; } /* password_dlg_proc */ /* * Function: Display and process the password dialog. * * Parameters: * hwnd - the parent window for the dialog * * Returns: TRUE if the dialog completed successfully, FALSE otherwise. */ static BOOL password_dialog( HWND hwnd) { DLGPROC dlgproc; int rc; dlgproc = (FARPROC) MakeProcInstance(password_dlg_proc, hinstance); assert(dlgproc != NULL); if (dlgproc == NULL) return FALSE; rc = DialogBox(hinstance, MAKEINTRESOURCE(ID_PASSWORD), hwnd, dlgproc); assert(rc != -1); FreeProcInstance((FARPROC) dlgproc); return rc == IDOK; } /* password_dialog */ /* * Function: Process WM_INITDIALOG messages for the options dialog. * Set up all initial dialog values from the KERBEROS_INI file. * * Parameters: * hwnd - the window recieving the message. * * wparam - handle of the control for focus. * * lparam - lparam from dialog box call. * * Returns: TRUE if we didn't set the focus here, * FALSE if we did. */ static LONG opts_initdialog( HWND hwnd, WPARAM wparam, LPARAM lparam) { char defname[FILENAME_MAX]; UINT rc; int lifetime; center_dialog(hwnd); set_dialog_font(hwnd, hfontdialog); /* krb.conf file */ rc = GetWindowsDirectory(defname, sizeof(defname)); assert(rc > 0); strcat(defname, "\\"); strcat(defname, DEF_KRB_CONF); GetPrivateProfileString(INI_FILES, INI_KRB_CONF, defname, confname, sizeof(confname), KERBEROS_INI); _strupr(confname); SetDlgItemText(hwnd, IDD_CONF, confname); /* krb.realms file */ rc = GetWindowsDirectory(defname, sizeof(defname)); assert(rc > 0); strcat(defname, "\\"); strcat(defname, DEF_KRB_REALMS); GetPrivateProfileString(INI_FILES, INI_KRB_REALMS, defname, realmsname, sizeof(realmsname), KERBEROS_INI); _strupr(realmsname); SetDlgItemText(hwnd, IDD_REALMS, realmsname); /* Ticket duration */ lifetime = GetPrivateProfileInt(INI_OPTIONS, INI_DURATION, DEFAULT_TKT_LIFE * 5, KERBEROS_INI); SetDlgItemInt(hwnd, IDD_LIFETIME, lifetime, FALSE); /* Expiration action */ GetPrivateProfileString(INI_EXPIRATION, INI_ALERT, "No", defname, sizeof(defname), KERBEROS_INI); alert = _stricmp(defname, "Yes") == 0; SendDlgItemMessage(hwnd, IDD_ALERT, BM_SETCHECK, alert, 0); GetPrivateProfileString(INI_EXPIRATION, INI_BEEP, "No", defname, sizeof(defname), KERBEROS_INI); beep = _stricmp(defname, "Yes") == 0; SendDlgItemMessage(hwnd, IDD_BEEP, BM_SETCHECK, beep, 0); return TRUE; } /* opts_initdialog */ /* * Function: Process WM_COMMAND messages for the options dialog. * * Parameters: * hwnd - the window recieving the message. * * wparam - id of the command item * * lparam - LOWORD=hwnd of control, HIWORD=notification message. * * Returns: TRUE if initialized sucessfully, false otherwise. */ static LONG opts_command( HWND hwnd, WPARAM wparam, LPARAM lparam) { char defname[FILENAME_MAX]; char *p; BOOL b; int lifetime; int rc; switch (wparam) { case IDOK: /* Ticket duration */ lifetime = GetDlgItemInt(hwnd, IDD_LIFETIME, &b, FALSE); if (!b) { MessageBox(hwnd, "Lifetime must be a number!", "", MB_OK | MB_ICONEXCLAMATION); return TRUE; } _itoa(lifetime, defname, 10); b = WritePrivateProfileString(INI_OPTIONS, INI_DURATION, defname, KERBEROS_INI); assert(b); /* krb.conf file */ GetDlgItemText(hwnd, IDD_CONF, confname, sizeof(confname)); trim(confname); rc = GetWindowsDirectory(defname, sizeof(defname)); assert(rc > 0); strcat(defname, "\\"); strcat(defname, DEF_KRB_CONF); if (_stricmp(confname, defname) == 0 || !defname[0]) p = NULL; else p = confname; b = WritePrivateProfileString(INI_FILES, INI_KRB_CONF, p, KERBEROS_INI); assert(b); /* krb.realms file */ GetDlgItemText(hwnd, IDD_REALMS, realmsname, sizeof(realmsname)); trim(realmsname); rc = GetWindowsDirectory(defname, sizeof(defname)); assert(rc > 0); strcat(defname, "\\"); strcat(defname, DEF_KRB_REALMS); if (_stricmp(realmsname, defname) == 0 || !defname[0]) p = NULL; else p = defname; b = WritePrivateProfileString(INI_FILES, INI_KRB_REALMS, p, KERBEROS_INI); assert(b); /* Expiration action */ alert = (BOOL) SendDlgItemMessage(hwnd, IDD_ALERT, BM_GETCHECK, 0, 0); p = (alert) ? "Yes" : "No"; b = WritePrivateProfileString(INI_EXPIRATION, INI_ALERT, p, KERBEROS_INI); assert(b); beep = (BOOL) SendDlgItemMessage(hwnd, IDD_BEEP, BM_GETCHECK, 0, 0); p = (beep) ? "Yes" : "No"; b = WritePrivateProfileString(INI_EXPIRATION, INI_BEEP, p, KERBEROS_INI); assert(b); EndDialog(hwnd, IDOK); return TRUE; case IDCANCEL: EndDialog(hwnd, IDCANCEL); return TRUE; } return FALSE; } /* opts_command */ /* * Function: Process dialog specific messages for the opts dialog. * * Parameters: * hwnd - the dialog receiving the message. * * message - the message to process. * * wparam - wparam of the message. * * lparam - lparam of the message. * * Returns: TRUE if message handled locally, FALSE otherwise. */ static BOOL CALLBACK opts_dlg_proc( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam) { LRESULT rc; switch (message) { case WM_INITDIALOG: rc = opts_initdialog(hwnd, wparam, lparam); return (BOOL) rc; case WM_COMMAND: rc = opts_command(hwnd, wparam, lparam); return (BOOL) rc; } return FALSE; } /* opts_dlg_proc */ /* * Function: Display and process the options dialog. * * Parameters: * hwnd - the parent window for the dialog * * Returns: TRUE if the dialog completed successfully, FALSE otherwise. */ static BOOL opts_dialog( HWND hwnd) { DLGPROC dlgproc; int rc; dlgproc = (FARPROC) MakeProcInstance(opts_dlg_proc, hinstance); assert(dlgproc != NULL); if (dlgproc == NULL) return FALSE; rc = DialogBox(hinstance, MAKEINTRESOURCE(ID_OPTS), hwnd, dlgproc); assert(rc != -1); FreeProcInstance((FARPROC) dlgproc); return rc == IDOK; } /* opts_dialog */ /* * Function: Save most recent login triplets for placement on the * bottom of the file menu. * * Parameters: * hwnd - the handle of the window containing the menu to edit. * * name - A login name to save in the recent login list * * instance - An instance to save in the recent login list * * realm - A realm to save in the recent login list */ static void kwin_push_login( HWND hwnd, char *name, char *instance, char *realm) { HMENU hmenu; int i; int id; int ctitems; char fullname[MAX_K_NAME_SZ + 3]; char menuitem[MAX_K_NAME_SZ + 3]; BOOL rc; strcpy(fullname, "&x "); strcat(fullname, name); strcat(fullname, "."); strcat(fullname, instance); strcat(fullname, "@"); strcat(fullname, realm); hmenu = GetMenu(hwnd); assert(hmenu != NULL); hmenu = GetSubMenu(hmenu, 0); assert(hmenu != NULL); ctitems = GetMenuItemCount(hmenu); assert(ctitems >= FILE_MENU_ITEMS); if (ctitems == FILE_MENU_ITEMS) { rc = AppendMenu(hmenu, MF_SEPARATOR, 0, NULL); assert(rc); ctitems++; } for (i = FILE_MENU_ITEMS + 1; i < ctitems; i++) { GetMenuString(hmenu, i, menuitem, sizeof(menuitem), MF_BYPOSITION); if (strcmp(&fullname[3], &menuitem[3]) == 0) { rc = RemoveMenu(hmenu, i, MF_BYPOSITION); assert(rc); ctitems--; break; } } rc = InsertMenu(hmenu, FILE_MENU_ITEMS + 1, MF_BYPOSITION, 1, fullname); assert(rc); ctitems++; if (ctitems - FILE_MENU_ITEMS - 1 > FILE_MENU_MAX_LOGINS) { RemoveMenu(hmenu, ctitems - 1, MF_BYPOSITION); ctitems--; } id = 0; for (i = FILE_MENU_ITEMS + 1; i < ctitems; i++) { GetMenuString(hmenu, i, menuitem, sizeof(menuitem), MF_BYPOSITION); rc = RemoveMenu(hmenu, i, MF_BYPOSITION); assert(rc); menuitem[1] = '1' + id; rc = InsertMenu(hmenu, i, MF_BYPOSITION, IDM_FIRST_LOGIN + id, menuitem); assert(rc); id++; } } /* kwin_push_login */ /* * Function: Initialize the logins on the file menu form the KERBEROS.INI * file. * * Parameters: * hwnd - handle of the dialog containing the file menu. */ static void kwin_init_file_menu( HWND hwnd) { HMENU hmenu; int i; char login[sizeof(INI_LOGIN)+1]; char menuitem[MAX_K_NAME_SZ + 3]; int id; BOOL rc; hmenu = GetMenu(hwnd); assert(hmenu != NULL); hmenu = GetSubMenu(hmenu, 0); assert(hmenu != NULL); strcpy(login, INI_LOGIN); id = 0; for (i = 0; i < FILE_MENU_MAX_LOGINS; i++) { login[sizeof(INI_LOGIN) - 1] = '1' + i; login[sizeof(INI_LOGIN)] = 0; GetPrivateProfileString(INI_RECENT_LOGINS, login, "", &menuitem[3], sizeof(menuitem) - 3, KERBEROS_INI); if (!menuitem[3]) continue; menuitem[0] = '&'; menuitem[1] = '1' + id; menuitem[2] = ' '; if (id == 0) { rc = AppendMenu(hmenu, MF_SEPARATOR, 0, NULL); assert(rc); } AppendMenu(hmenu, MF_STRING, IDM_FIRST_LOGIN + id, menuitem); id++; } } /* kwin_init_file_menu */ /* * Function: Save the items on the file menu in the KERBEROS.INI file. * * Parameters: * hwnd - handle of the dialog containing the file menu. */ static void kwin_save_file_menu( HWND hwnd) { HMENU hmenu; int i; int id; int ctitems; char menuitem[MAX_K_NAME_SZ + 3]; char login[sizeof(INI_LOGIN)+1]; BOOL rc; hmenu = GetMenu(hwnd); assert(hmenu != NULL); hmenu = GetSubMenu(hmenu, 0); assert(hmenu != NULL); strcpy(login, INI_LOGIN); ctitems = GetMenuItemCount(hmenu); assert(ctitems >= FILE_MENU_ITEMS); id = 0; for (i = FILE_MENU_ITEMS + 1; i < ctitems; i++) { GetMenuString(hmenu, i, menuitem, sizeof(menuitem), MF_BYPOSITION); login[sizeof(INI_LOGIN) - 1] = '1' + id; login[sizeof(INI_LOGIN)] = 0; rc = WritePrivateProfileString(INI_RECENT_LOGINS, login, &menuitem[3], KERBEROS_INI); assert(rc); id++; } } /* kwin_save_file_menu */ /* * Function: Given an expiration time, choose an appropriate * icon to display. * * Parameters: * expiration time of expiration in time() compatible units * * Returns: Handle of icon to display */ HICON kwin_get_icon( time_t expiration) { int ixicon; time_t dt; dt = expiration - time(NULL); dt = dt / 60; /* convert to minutes */ if (dt <= 0) ixicon = IDI_EXPIRED - IDI_FIRST_CLOCK; else if (dt > 60) ixicon = IDI_TICKET - IDI_FIRST_CLOCK; else ixicon = (int) (dt / 5); return kwin_icons[ixicon]; } /* kwin_get_icon */ /* * Function: Intialize name fields in the Kerberos dialog. * * Parameters: * hwnd - the window recieving the message. * * fullname - the full kerberos name to initialize with */ static void kwin_init_name( HWND hwnd, char *fullname) { char name[ANAME_SZ]; char instance[INST_SZ]; char realm[REALM_SZ]; int krc; if (fullname == NULL || fullname[0] == 0) { strcpy(name, krb_get_default_user()); GetPrivateProfileString(INI_DEFAULTS, INI_INSTANCE, "", instance, sizeof(instance), KERBEROS_INI); krc = krb_get_lrealm(realm, 1); if (krc != KSUCCESS) realm[0] = 0; GetPrivateProfileString(INI_DEFAULTS, INI_REALM, realm, realm, sizeof(realm), KERBEROS_INI); } else kname_parse(name, instance, realm, fullname); SetDlgItemText(hwnd, IDD_LOGIN_NAME, name); name[0] = 0; GetDlgItemText(hwnd, IDD_LOGIN_NAME, name, sizeof(name)); SetDlgItemText(hwnd, IDD_LOGIN_INSTANCE, instance); SetDlgItemText(hwnd, IDD_LOGIN_REALM, realm); } /* kwin_init_name */ /* * Function: Set the focus to the name control if no name * exists, the realm control if no realm exists or the * password control. Uses PostMessage not SetFocus. * * Parameters: * hwnd - the Window handle of the parent. */ void kwin_set_default_focus( HWND hwnd) { char name[ANAME_SZ]; char realm[REALM_SZ]; HWND hwnditem; GetDlgItemText(hwnd, IDD_LOGIN_NAME, name, sizeof(name)); trim(name); if (strlen(name) <= 0) hwnditem = GetDlgItem(hwnd, IDD_LOGIN_NAME); else { GetDlgItemText(hwnd, IDD_LOGIN_REALM, realm, sizeof(realm)); trim(realm); if (strlen(realm) <= 0) hwnditem = GetDlgItem(hwnd, IDD_LOGIN_REALM); else hwnditem = GetDlgItem(hwnd, IDD_LOGIN_PASSWORD); } PostMessage(hwnd, WM_NEXTDLGCTL, hwnditem, MAKELONG(1, 0)); } /* kwin_set_default_focus */ /* * Function: Save the values which live in the KERBEROS.INI file. * * Parameters: * hwnd - the window handle of the dialog containing fields to * be saved */ static void kwin_save_name( HWND hwnd) { char name[ANAME_SZ]; char instance[INST_SZ]; char realm[REALM_SZ]; GetDlgItemText(hwnd, IDD_LOGIN_NAME, name, sizeof(name)); trim(name); krb_set_default_user(name); GetDlgItemText(hwnd, IDD_LOGIN_INSTANCE, instance, sizeof(instance)); trim(instance); WritePrivateProfileString(INI_DEFAULTS, INI_INSTANCE, instance, KERBEROS_INI); GetDlgItemText(hwnd, IDD_LOGIN_REALM, realm, sizeof(realm)); trim(realm); WritePrivateProfileString(INI_DEFAULTS, INI_REALM, realm, KERBEROS_INI); kwin_push_login(hwnd, name, instance, realm); } /* kwin_save_name */ /* * Function: Process WM_INITDIALOG messages. Set the fonts * for all items on the dialog and populate the ticket list. * Also set the default values for user, instance and realm. * * Parameters: * hwnd - the window recieving the message. * * wparam - handle of the control for focus. * * lparam - lparam from dialog box call. * * Returns: TRUE if we didn't set the focus here, * FALSE if we did. */ static BOOL kwin_initdialog( HWND hwnd, WPARAM wparam, LPARAM lparam) { LOGFONT lf; HDC hdc; char name[ANAME_SZ]; krb_start_session (NULL); position_dialog(hwnd); ticket_init_list(GetDlgItem(hwnd, IDD_TICKET_LIST)); kwin_init_file_menu(hwnd); kwin_init_name(hwnd, (char *) lparam); hdc = GetDC(NULL); assert(hdc != NULL); memset(&lf, 0, sizeof(lf)); lf.lfHeight = -MulDiv(9, GetDeviceCaps(hdc, LOGPIXELSY), 72); strcpy(lf.lfFaceName, "Arial"); hfontdialog = CreateFontIndirect(&lf); assert(hfontdialog != NULL); if (hfontdialog == NULL) { ReleaseDC(NULL, hdc); return TRUE; } lf.lfHeight = -MulDiv(8, GetDeviceCaps(hdc, LOGPIXELSY), 72); hfonticon = CreateFontIndirect(&lf); assert(hfonticon != NULL); if (hfonticon == NULL) { ReleaseDC(NULL, hdc); return TRUE; } ReleaseDC(NULL, hdc); set_dialog_font(hwnd, hfontdialog); GetDlgItemText(hwnd, IDD_LOGIN_NAME, name, sizeof(name)); trim(name); if (strlen(name) > 0) SetFocus(GetDlgItem(hwnd, IDD_LOGIN_PASSWORD)); else SetFocus(GetDlgItem(hwnd, IDD_LOGIN_NAME)); ShowWindow(hwnd, dlgncmdshow); kwin_timer_id = SetTimer(hwnd, 1, KWIN_UPDATE_PERIOD, NULL); assert(kwin_timer_id != 0); return FALSE; } /* kwin_initdialog */ /* * Function: Process WM_DESTROY messages. Delete the font * created for use by the controls. * * Parameters: * hwnd - the window recieving the message. * * wparam - none * * lparam - none * * Returns: 0 */ static LONG kwin_destroy( HWND hwnd, WPARAM wparam, LPARAM lparam) { char position[256]; RECT r; BOOL b; ticket_destroy(GetDlgItem(hwnd, IDD_TICKET_LIST)); if (hfontdialog != NULL) DeleteObject(hfontdialog); if (hfonticon != NULL) DeleteObject(hfonticon); krb_end_session((char *) NULL); kwin_save_file_menu(hwnd); GetWindowRect(hwnd, &r); sprintf(position, "[%d,%d,%d,%d]", r.left, r.top, r.right - r.left, r.bottom - r.top); b = WritePrivateProfileString(INI_DEFAULTS, INI_POSITION, position, KERBEROS_INI); assert(b); KillTimer(hwnd, kwin_timer_id); return 0; } /* kwin_destroy */ /* * Function: Retrievs item WindowRect in hwnd client * coordiate system. * * Parameters: * hwnditem - the item to retrieve * * item - dialog in which into which to translate * * r - rectangle returned */ static void windowrect( HWND hwnditem, HWND hwnd, RECT *r) { GetWindowRect(hwnditem, r); ScreenToClient(hwnd, (LPPOINT) &(r->left)); ScreenToClient(hwnd, (LPPOINT) &(r->right)); } /* windowrect */ /* * Function: Process WM_SIZE messages. Resize the * list and position the buttons attractively. * * Parameters: * hwnd - the window recieving the message. * * wparam - type of resize occuring * * lparam - LOWORD=width of client area, * HIWORD=height of client area. * * Returns: 0 */ static LONG kwin_size( HWND hwnd, WPARAM wparam, LPARAM lparam) { #define listgap 8 RECT r; RECT rdlg; int hmargin, vmargin; HWND hwnditem; int cx, cy; int cxdlg, cydlg; int i; int titlebottom; int editbottom; int listbottom; int gap; int left; int titleleft[IDD_MAX_TITLE - IDD_MIN_TITLE + 1]; if (wparam == SIZE_MINIMIZED) return 0; GetClientRect(hwnd, &rdlg); cxdlg = LOWORD(lparam); cydlg = HIWORD(lparam); /* * The ticket list title */ hwnditem = GetDlgItem(hwnd, IDD_TICKET_LIST_TITLE); if (hwnditem == NULL) return 0; windowrect(hwnditem, hwnd, &r); hmargin = r.left; vmargin = r.top; cx = cxdlg - 2 * hmargin; cy = r.bottom - r.top; MoveWindow(hwnditem, r.left, r.top, cx, cy, TRUE); /* * The buttons */ cx = 0; for (i = IDD_MIN_BUTTON; i <= IDD_MAX_BUTTON; i++) { hwnditem = GetDlgItem(hwnd, i); windowrect(hwnditem, hwnd, &r); if (i == IDD_MIN_BUTTON) hmargin = r.left; cx += r.right - r.left; } gap = (cxdlg - 2 * hmargin - cx) / (IDD_MAX_BUTTON - IDD_MIN_BUTTON); left = hmargin; for (i = IDD_MIN_BUTTON; i <= IDD_MAX_BUTTON; i++) { hwnditem = GetDlgItem(hwnd, i); windowrect(hwnditem, hwnd, &r); editbottom = -r.top; cx = r.right - r.left; cy = r.bottom - r.top; r.top = rdlg.bottom - vmargin - cy; MoveWindow(hwnditem, left, r.top, cx, cy, TRUE); left += cx + gap; } /* * Edit fields */ editbottom += r.top; cx = 0; for (i = IDD_MIN_EDIT; i <= IDD_MAX_EDIT; i++) { hwnditem = GetDlgItem(hwnd, i); windowrect(hwnditem, hwnd, &r); if (i == IDD_MIN_EDIT) { gap = r.right; hmargin = r.left; editbottom += r.bottom; titlebottom = -r.top; } if (i == IDD_MIN_EDIT + 1) gap = r.left - gap; cx += r.right - r.left; } cx = cxdlg - 2 * hmargin - (IDD_MAX_EDIT - IDD_MIN_EDIT) * gap; cx = cx / (IDD_MAX_EDIT - IDD_MIN_EDIT + 1); left = hmargin; for (i = IDD_MIN_EDIT; i <= IDD_MAX_EDIT; i++) { hwnditem = GetDlgItem(hwnd, i); windowrect(hwnditem, hwnd, &r); cy = r.bottom - r.top; r.top = editbottom - cy; MoveWindow(hwnditem, left, r.top, cx, cy, TRUE); titleleft[i-IDD_MIN_EDIT] = left; left += cx + gap; } /* * Edit field titles */ titlebottom += r.top; windowrect(GetDlgItem(hwnd, IDD_MIN_TITLE), hwnd, &r); titlebottom += r.bottom; listbottom = -r.top; for (i = IDD_MIN_TITLE; i <= IDD_MAX_TITLE; i++) { hwnditem = GetDlgItem(hwnd, i); windowrect(hwnditem, hwnd, &r); cx = r.right - r.left; cy = r.bottom - r.top; r.top = titlebottom - cy; MoveWindow(hwnditem, titleleft[i-IDD_MIN_TITLE], r.top, cx, cy, TRUE); } /* * The list */ listbottom = r.top - listgap; hwnditem = GetDlgItem(hwnd, IDD_TICKET_LIST); windowrect(hwnditem, hwnd, &r); hmargin = r.left; cx = cxdlg - 2 * hmargin; cy = listbottom - r.top; MoveWindow(hwnditem, r.left, r.top, cx, cy, TRUE); return 0; } /* kwin_size */ /* * Function: Process WM_GETMINMAXINFO messages * * Parameters: * hwnd - the window recieving the message. * * wparam - none. * * lparam - LPMINMAXINFO * * Returns: 0 */ static LONG kwin_getminmaxinfo( HWND hwnd, WPARAM wparam, LPARAM lparam) { MINMAXINFO *lpmmi; lpmmi = (MINMAXINFO *) lparam; lpmmi->ptMinTrackSize.x = (KWIN_MIN_WIDTH * LOWORD(GetDialogBaseUnits())) / 4; lpmmi->ptMinTrackSize.y = (KWIN_MIN_HEIGHT * HIWORD(GetDialogBaseUnits())) / 8; return 0; } /* kwin_getminmaxinfo */ /* * Function: Process WM_TIMER messages * * Parameters: * hwnd - the window recieving the message. * * wparam - the timer id. * * lparam - timer callback proceedure * * Returns: 0 */ static LONG kwin_timer( HWND hwnd, WPARAM wparam, LPARAM lparam) { HWND hwndfocus; int ncred; int i; char service[ANAME_SZ]; char instance[INST_SZ]; char realm[REALM_SZ]; CREDENTIALS c; time_t t; time_t expiration; BOOL expired; if (wparam != 1) return DefDlgProc(hwnd, WM_TIMER, wparam, lparam); expired = FALSE; ticket_init_list(GetDlgItem(hwnd, IDD_TICKET_LIST)); if (alerted) { if (IsIconic(hwnd)) InvalidateRect(hwnd, NULL, TRUE); return 0; } ncred = krb_get_num_cred(); for (i = 1; i <= ncred; i++) { krb_get_nth_cred(service, instance, realm, i); if (_stricmp(service, "krbtgt") == 0) { krb_get_cred(service, instance, realm, &c); expiration = c.issue_date + (long) c.lifetime * 5L * 60L; t = time(NULL); if (t + TIME_BUFFER >= expiration) { expired = TRUE; if (t + TIME_BUFFER >= expiration + KWIN_UPDATE_PERIOD / 1000) { /* must just be starting */ alerted = TRUE; if (IsIconic(hwnd)) InvalidateRect(hwnd, NULL, TRUE); return 0; } break; } } } if (!expired) { if (IsIconic(hwnd)) InvalidateRect(hwnd, NULL, TRUE); return 0; } alerted = TRUE; if (beep) MessageBeep(MB_ICONEXCLAMATION); if (alert) { if (IsIconic(hwnd)) { hwndfocus = GetFocus(); ShowWindow(hwnd, SW_RESTORE); SetWindowPos(hwnd, HWND_TOP, 0, 0, 0, 0, SWP_NOACTIVATE | SWP_SHOWWINDOW | SWP_NOMOVE | SWP_NOSIZE); SetFocus(hwndfocus); } SetWindowPos(hwnd, HWND_TOP, 0, 0, 0, 0, SWP_NOACTIVATE | SWP_SHOWWINDOW | SWP_NOMOVE | SWP_NOSIZE); return 0; } if (IsIconic(hwnd)) InvalidateRect(hwnd, NULL, TRUE); return 0; } /* kwin_timer */ /* * Function: Process WM_COMMAND messages * * Parameters: * hwnd - the window recieving the message. * * wparam - id of the command item * * lparam - LOWORD=hwnd of control, HIWORD=notification message. * * Returns: TRUE if initialized sucessfully, false otherwise. */ static LONG kwin_command( HWND hwnd, WPARAM wparam, LPARAM lparam) { char name[ANAME_SZ]; char instance[INST_SZ]; char realm[REALM_SZ]; char password[MAX_KPW_LEN]; int krc; HCURSOR hcursor; int lifetime; BOOL blogin; HMENU hmenu; char menuitem[MAX_K_NAME_SZ + 3]; char copyright[128]; EnableWindow(GetDlgItem(hwnd, IDD_TICKET_DELETE), krb_get_num_cred() > 0); GetDlgItemText(hwnd, IDD_LOGIN_NAME, name, sizeof(name)); trim(name); blogin = strlen(name) > 0; if (blogin) { GetDlgItemText(hwnd, IDD_LOGIN_REALM, realm, sizeof(realm)); trim(realm); blogin = strlen(realm) > 0; } if (blogin) { GetDlgItemText(hwnd, IDD_LOGIN_PASSWORD, password, sizeof(password)); blogin = strlen(password) > 0; } EnableWindow(GetDlgItem(hwnd, IDD_LOGIN), blogin); if (HIWORD(lparam) != BN_CLICKED && HIWORD(lparam) != 0 && HIWORD(lparam) != 1) return FALSE; if (wparam >= IDM_FIRST_LOGIN && wparam < IDM_FIRST_LOGIN + FILE_MENU_MAX_LOGINS) { hmenu = GetMenu(hwnd); assert(hmenu != NULL); hmenu = GetSubMenu(hmenu, 0); assert(hmenu != NULL); if (!GetMenuString(hmenu, wparam, menuitem, sizeof(menuitem), MF_BYCOMMAND)) return TRUE; if (menuitem[0]) kwin_init_name(hwnd, &menuitem[3]); return TRUE; } switch (wparam) { case IDM_EXIT: if (isblocking) WSACancelBlockingCall(); WinHelp(hwnd, KERBEROS_HLP, HELP_QUIT, 0); PostQuitMessage(0); return TRUE; case IDD_LOGIN: if (isblocking) return TRUE; GetDlgItemText(hwnd, IDD_LOGIN_NAME, name, sizeof(name)); trim(name); GetDlgItemText(hwnd, IDD_LOGIN_INSTANCE, instance, sizeof(instance)); trim(instance); GetDlgItemText(hwnd, IDD_LOGIN_REALM, realm, sizeof(realm)); trim(realm); GetDlgItemText(hwnd, IDD_LOGIN_PASSWORD, password, sizeof(password)); trim(password); hcursor = SetCursor(LoadCursor(NULL, IDC_WAIT)); lifetime = GetPrivateProfileInt(INI_OPTIONS, INI_DURATION, DEFAULT_TKT_LIFE * 5, KERBEROS_INI); lifetime = (lifetime + 4) / 5; start_blocking_hook(BLOCK_MAX_SEC); krc = krb_get_pw_in_tkt(name, instance, realm, "krbtgt", realm, lifetime, password); end_blocking_hook(); SetCursor(hcursor); kwin_set_default_focus(hwnd); if (krc != KSUCCESS) { MessageBox(hwnd, krb_get_err_text(krc), "", MB_OK | MB_ICONEXCLAMATION); return TRUE; } SetDlgItemText(hwnd, IDD_LOGIN_PASSWORD, ""); kwin_save_name(hwnd); alerted = FALSE; switch (action) { case LOGIN_AND_EXIT: SendMessage(hwnd, WM_COMMAND, IDM_EXIT, 0); break; case LOGIN_AND_MINIMIZE: ShowWindow(hwnd, SW_MINIMIZE); break; } return TRUE; case IDD_TICKET_DELETE: if (isblocking) return TRUE; krc = dest_tkt(); if (krc != KSUCCESS) MessageBox(hwnd, krb_get_err_text(krc), "", MB_OK | MB_ICONEXCLAMATION); kwin_set_default_focus(hwnd); alerted = FALSE; return TRUE; case IDD_CHANGE_PASSWORD: if (isblocking) return TRUE; password_dialog(hwnd); kwin_set_default_focus(hwnd); return TRUE; case IDM_OPTIONS: if (isblocking) return TRUE; opts_dialog(hwnd); return TRUE; case IDM_HELP_INDEX: WinHelp(hwnd, KERBEROS_HLP, HELP_INDEX, 0); return TRUE; case IDM_ABOUT: if (isblocking) return TRUE; strcpy(copyright, " Kerberos for Windows\n"); strcat(copyright, "\n Version 1.00\n\n"); strcat(copyright, " For support, contact:\n"); strcat(copyright, ORGANIZATION); strcat(copyright, " - (415) 903-1400"); MessageBox(hwnd, copyright, "Kerberos", MB_OK); return TRUE; } return FALSE; } /* kwin_command */ /* * Function: Process WM_SYSCOMMAND messages by setting * the focus to the password or name on restore. * * Parameters: * hwnd - the window recieving the message. * * wparam - the syscommand option. * * lparam - * * Returns: 0 */ static LONG kwin_syscommand( HWND hwnd, WPARAM wparam, LPARAM lparam) { if ((wparam & 0xFFF0) == SC_RESTORE) kwin_set_default_focus(hwnd); if ((wparam & 0xFFF0) == SC_CLOSE) { SendMessage(hwnd, WM_COMMAND, IDM_EXIT, 0); return 0; } return DefDlgProc(hwnd, WM_SYSCOMMAND, wparam, lparam); } /* kwin_syscommand */ /* * Function: Process WM_PAINT messages by displaying an * informative icon when we are iconic. * * Parameters: * hwnd - the window recieving the message. * * wparam - none * * lparam - none * * Returns: 0 */ static LONG kwin_paint( HWND hwnd, WPARAM wparam, LPARAM lparam) { HDC hdc; PAINTSTRUCT ps; HICON hicon; int i; int ncred; char service[ANAME_SZ]; char instance[INST_SZ]; char realm[REALM_SZ]; CREDENTIALS c; time_t expiration; time_t dt; char buf[20]; RECT r; if (!IsIconic(hwnd)) return DefDlgProc(hwnd, WM_PAINT, wparam, lparam); ncred = krb_get_num_cred(); expiration = 0; for (i = 1; i <= ncred; i++) { krb_get_nth_cred(service, instance, realm, i); krb_get_cred(service, instance, realm, &c); if (_stricmp(c.service, "krbtgt") == 0) { expiration = c.issue_date - kwin_get_epoch() + (long) c.lifetime * 5L * 60L; break; } } hdc = BeginPaint(hwnd, &ps); GetClientRect(hwnd, &r); DefWindowProc(hwnd, WM_ICONERASEBKGND, hdc, 0); if (expiration == 0) { strcpy(buf, KWIN_DIALOG_NAME); hicon = LoadIcon(hinstance, MAKEINTRESOURCE(IDI_KWIN)); } else { hicon = kwin_get_icon(expiration); dt = (expiration - time(NULL)) / 60; if (dt <= 0) sprintf(buf, "%s - %s", KWIN_DIALOG_NAME, "Expired"); else if (dt < 60) { dt %= 60; sprintf(buf, "%s - %ld min", KWIN_DIALOG_NAME, dt); } else { dt /= 60; sprintf(buf, "%s - %ld hr", KWIN_DIALOG_NAME, dt); } if (dt > 1) strcat(buf, "s"); } DrawIcon(hdc, r.left, r.top, hicon); EndPaint(hwnd, &ps); SetWindowText(hwnd, buf); return 0; } /* kwin_paint */ /* * Function: Window proceedure for the Kerberos control panel dialog. * * Parameters: * hwnd - the window receiving the message. * * message - the message to process. * * wparam - wparam of the message. * * lparam - lparam of the message. * * Returns: message dependent value. */ LRESULT __export CALLBACK kwin_wnd_proc( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam) { LRESULT rc; if (message == wm_kerberos_changed) { ticket_init_list(GetDlgItem(hwnd, IDD_TICKET_LIST)); EnableWindow(GetDlgItem(hwnd, IDD_TICKET_DELETE), krb_get_num_cred() > 0); return 0; } switch (message) { case WM_GETMINMAXINFO: rc = kwin_getminmaxinfo(hwnd, wparam, lparam); return rc; case WM_DESTROY: rc = kwin_destroy(hwnd, wparam, lparam); return rc; case WM_MEASUREITEM: if (wparam == IDD_TICKET_LIST) { rc = ticket_measureitem(hwnd, wparam, lparam); return rc; } break; case WM_DRAWITEM: if (wparam == IDD_TICKET_LIST) { rc = ticket_drawitem(hwnd, wparam, lparam); return rc; } break; case WM_SETCURSOR: if (isblocking) { SetCursor(LoadCursor(NULL, IDC_WAIT)); return TRUE; } break; case WM_SIZE: rc = kwin_size(hwnd, wparam, lparam); return rc; case WM_SYSCOMMAND: rc = kwin_syscommand(hwnd, wparam, lparam); return rc; case WM_TIMER: rc = kwin_timer(hwnd, wparam, lparam); return 0; case WM_PAINT: rc = kwin_paint(hwnd, wparam, lparam); return rc; case WM_ERASEBKGND: if (!IsIconic(hwnd)) break; return 0; case WM_KWIN_SETNAME: kwin_init_name(hwnd, (char *) lparam); } return DefDlgProc(hwnd, message, wparam, lparam); } /* kwin_wnd_proc */ /* * Function: Dialog procedure called by the dialog manager * to process dialog specific messages. * * Parameters: * hwnd - the dialog receiving the message. * * message - the message to process. * * wparam - wparam of the message. * * lparam - lparam of the message. * * Returns: TRUE if message handled locally, FALSE otherwise. */ static BOOL CALLBACK kwin_dlg_proc( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam) { LRESULT rc; switch (message) { case WM_INITDIALOG: return kwin_initdialog(hwnd, wparam, lparam); case WM_COMMAND: rc = kwin_command(hwnd, wparam, lparam); return TRUE; } return FALSE; } /* kwin_dlg_proc */ /* * Function: Initialize the kwin dialog class. * * Parameters: * hinstance - the instance to initialize * * Returns: TRUE if dialog class registration is sucessfully, false otherwise. */ static BOOL kwin_init( HINSTANCE hinstance) { WNDCLASS class; ATOM rc; class.style = CS_HREDRAW | CS_VREDRAW; class.lpfnWndProc = (WNDPROC) kwin_wnd_proc; class.cbClsExtra = 0; class.cbWndExtra = DLGWINDOWEXTRA; class.hInstance = hinstance; class.hIcon = NULL; // LoadIcon(hinstance, MAKEINTRESOURCE(IDI_KWIN)); class.hCursor = NULL; class.hbrBackground = NULL; class.lpszMenuName = NULL; class.lpszClassName = KWIN_DIALOG_CLASS; rc = RegisterClass (&class); assert(rc); return rc; } /* kwin_init */ /* * Function: Initialize the KWIN application. This routine should * only be called if no previous instance of the application * exists. Currently it only registers a class for the kwin * dialog type. * * Parameters: * hinstance - the instance to initialize * * Returns: TRUE if initialized sucessfully, false otherwise. */ static BOOL init_application( HINSTANCE hinstance) { BOOL rc; wm_kerberos_changed = krb_get_notification_message(); rc = kwin_init(hinstance); return rc; } /* init_application */ /* * Function: Quits the KWIN application. This routine should * be called when the last application instance exits. * * Parameters: * hinstance - the instance which is quitting. * * Returns: TRUE if initialized sucessfully, false otherwise. */ static BOOL quit_application ( HINSTANCE hinstance) { return TRUE; } /* quit_application */ /* * Function: Initialize the current instance of the KWIN application. * * Parameters: * hinstance - the instance to initialize * * ncmdshow - show flag to indicate wheather to come up minimized * or not. * * Returns: TRUE if initialized sucessfully, false otherwise. */ static BOOL init_instance( HINSTANCE hinstance, int ncmdshow) { WORD versionrequested; WSADATA wsadata; int rc; char buf[20]; int i; versionrequested = 0x0101; /* We need version 1.1 */ rc = WSAStartup(versionrequested, &wsadata); if (rc != 0) { MessageBox(NULL, "Couldn't initialize Winsock library", "", MB_OK | MB_ICONSTOP); return FALSE; } if (versionrequested != wsadata.wVersion) { WSACleanup(); MessageBox(NULL, "Winsock version 1.1 not available", "", MB_OK | MB_ICONSTOP); return FALSE; } /* * Set up expiration action */ GetPrivateProfileString(INI_EXPIRATION, INI_ALERT, "No", buf, sizeof(buf), KERBEROS_INI); alert = _stricmp(buf, "Yes") == 0; GetPrivateProfileString(INI_EXPIRATION, INI_BEEP, "No", buf, sizeof(buf), KERBEROS_INI); beep = _stricmp(buf, "Yes") == 0; /* * Load clock icons */ for (i = IDI_FIRST_CLOCK; i <= IDI_LAST_CLOCK; i++) kwin_icons[i - IDI_FIRST_CLOCK] = LoadIcon(hinstance, MAKEINTRESOURCE(i)); return TRUE; } /* init_instance */ /* * Function: Quits the current instance of the KWIN application. * * Parameters: * hinstance - the instance to quit. * * Returns: TRUE if termination was sucessfully, false otherwise. */ static BOOL quit_instance( HINSTANCE hinstance) { int i; WSACleanup(); /* * Load clock icons */ for (i = IDI_FIRST_CLOCK; i <= IDI_LAST_CLOCK; i++) DestroyIcon(kwin_icons[i - IDI_FIRST_CLOCK]); return TRUE; } /* quit_instance */ /* * Function: Main routine called on program invocation. * * Parameters: * hinstance - the current instance * * hprevinstance - previous instance if one exists or NULL. * * cmdline - the command line string passed by Windows. * * ncmdshow - show flag to indicate wheather to come up minimized * or not. * * Returns: TRUE if initialized sucessfully, false otherwise. */ int PASCAL WinMain( HINSTANCE hinst, HINSTANCE hprevinstance, LPSTR cmdline, int ncmdshow) { DLGPROC dlgproc; HWND hwnd; HACCEL haccel; MSG msg; char *p; char buf[MAX_K_NAME_SZ + 9]; char name[MAX_K_NAME_SZ]; strcpy(buf, cmdline); action = LOGIN_AND_RUN; name[0] = 0; p = strtok(buf, " ,"); while (p != NULL) { if (_stricmp(p, "/exit") == 0) action = LOGIN_AND_EXIT; else if (_stricmp(p, "/minimize") == 0) action = LOGIN_AND_MINIMIZE; else strcpy(name, p); p = strtok(NULL, " ,"); } dlgncmdshow = ncmdshow; hinstance = hinst; /* * If a previous instance of this application exits, bring it * to the front and exit. */ if (hprevinstance != NULL) { hwnd = FindWindow(KWIN_DIALOG_CLASS, NULL); if (IsWindow(hwnd) && IsWindowVisible(hwnd)) { if (GetWindowWord(hwnd, GWW_HINSTANCE) == hprevinstance) { if (name[0]) SendMessage(hwnd, WM_KWIN_SETNAME, 0, (LONG) name); ShowWindow(hwnd, ncmdshow); SetWindowPos(hwnd, HWND_TOP, 0, 0, 0, 0, SWP_SHOWWINDOW | SWP_NOMOVE | SWP_NOSIZE); return FALSE; } } } if (hprevinstance == NULL) if (!init_application(hinstance)) return FALSE; if (!init_instance(hinstance, ncmdshow)) return FALSE; dlgproc = (FARPROC) MakeProcInstance(kwin_dlg_proc, hinstance); assert(dlgproc != NULL); if (dlgproc == NULL) return 1; hwnd = CreateDialogParam(hinstance, MAKEINTRESOURCE (ID_KWIN), HWND_DESKTOP, dlgproc, (LONG) name); assert(hwnd != NULL); if (hwnd == NULL) return 1; haccel = LoadAccelerators(hinstance, MAKEINTRESOURCE(IDA_KWIN)); assert(hwnd != NULL); while (GetMessage(&msg, NULL, 0, 0)) { if (!TranslateAccelerator(hwnd, haccel, &msg) && !IsDialogMessage(hwnd, &msg)) { TranslateMessage(&msg); DispatchMessage(&msg); } } DestroyWindow(hwnd); FreeProcInstance((FARPROC) dlgproc); return 0; } /* WinMain */ #if 0 #define WM_ASYNC_COMPLETED (WM_USER + 1) #define GETHOSTBYNAME_CLASS "krb_gethostbyname" static HTASK htaskasync; /* Asynchronos call in progress */ static BOOL iscompleted; /* True when async call is completed */ /* * This routine is called to cancel a blocking hook call within * the Kerberos library. The need for this routine arises due * to bugs which exist in existing WINSOCK implementations. We * blocking gethostbyname with WSAASyncGetHostByName. In order * to cancel such an operation, this routine must be called. * Applications may call this routine in addition to calls to * WSACancelBlockingCall to get any sucy Async calls canceled. * Return values are as they would be for WSACancelAsyncRequest. */ int krb_cancel_blocking_call(void) { if (htaskasync == NULL) return 0; iscompleted = TRUE; return WSACancelAsyncRequest(htask); } /* krb_cancel_blocking_call */ /* * Window proceedure for temporary Windows created in * krb_gethostbyname. Fields completion messages. */ LRESULT __export CALLBACK krb_gethostbyname_wnd_proc( HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam) { if (message == WM_ASYNC_COMPLETED) { iscompleted = TRUE; return 0; } return DefWindowProc(hwnd, message, wparam, lparam); } /* krb_gethostbyname_wnd_proc */ /* * The WINSOCK routine gethostbyname has a bug in both FTP and NetManage * implementations which causes the blocking hook, if any, not to be * called. This routine attempts to work around the problem by using * the async routines to emulate the functionality of the synchronous * routines */ struct hostent FAR *PASCAL FAR krb_gethostbyname( const char FAR *name) { HWND hwnd; char buf[MAXGETHOSTSTRUCT]; BOOL FARPROC blockinghook; WNDCLASS wc; static BOOL isregistered; blockinghook = WSASetBlockingHook(NULL); WSASetBlockingHook(blockinghook); if (blockinghook == NULL) return gethostbyname(name); if (RegisterWndClass() == NULL) return gethostbyname(name); if (!isregistered) { wc.style = 0; wc.lpfnWndProc = gethostbyname_wnd_proc; wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hInstance = hlibinstance; wc.hIcon = NULL; wc.hCursor = NULL; wc.hbrBackground = NULL; wc.lpszMenuName = NULL; wc.lpszClassName = GETHOSTBYNAME_CLASS; if (!RegisterClass(&wc)) return gethostbyname(name); isregistered = TRUE; } hwnd = CreateWindow(GETHOSTBYNAME_CLASS, "", WS_OVERLAPPED, -100, -100, 0, 0, HWND_DESKTOP, NULL, hlibinstance, NULL); if (hwnd == NULL) return gethostbyname(name); htaskasync = WSAAsyncGetHostByName(hwnd, WM_ASYNC_COMPLETED, name, buf, sizeof(buf)); b = blockinghook(NULL); } /* krb_gethostbyname */ #endif