mdw@git.distorted.org.uk Git - sgt/putty/blob - mac/mac.c

   1 /* $Id: mac.c,v 1.55 2003/03/17 19:00:36 ben Exp $ */
   2 /*
   3  * Copyright (c) 1999, 2003 Ben Harris
   4  * All rights reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person
   7  * obtaining a copy of this software and associated documentation
   8  * files (the "Software"), to deal in the Software without
   9  * restriction, including without limitation the rights to use,
  10  * copy, modify, merge, publish, distribute, sublicense, and/or
  11  * sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following
  13  * conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be
  16  * included in all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  19  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  21  * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
  23  * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  25  * SOFTWARE.
  26  */
  27 /*
  28  * mac.c -- miscellaneous Mac-specific routines
  29  */
  30
  31 #include <MacTypes.h>
  32 #include <AEDataModel.h>
  33 #include <AppleEvents.h>
  34 #include <Quickdraw.h>
  35 #include <Fonts.h>
  36 #include <MacWindows.h>
  37 #include <Menus.h>
  38 #include <TextEdit.h>
  39 #include <Appearance.h>
  40 #include <CodeFragments.h>
  41 #include <Dialogs.h>
  42 #include <Devices.h>
  43 #include <DiskInit.h>
  44 #include <Gestalt.h>
  45 #include <LowMem.h>
  46 #include <Navigation.h>
  47 #include <Resources.h>
  48 #include <Script.h>
  49 #include <TextCommon.h>
  50 #include <ToolUtils.h>
  51 #include <UnicodeConverter.h>
  52
  53 #include <assert.h>
  54 #include <limits.h>
  55 #include <stdarg.h>
  56 #include <stdlib.h>             /* putty.h needs size_t */
  57 #include <stdio.h>              /* for vsprintf */
  58
  59 #define PUTTY_DO_GLOBALS
  60
  61 #include "macresid.h"
  62 #include "putty.h"
  63 #include "ssh.h"
  64 #include "terminal.h"
  65 #include "mac.h"
  66
  67 Session *sesslist;
  68
  69 static int cold = 1;
  70 static int borednow = FALSE;
  71 struct mac_gestalts mac_gestalts;
  72 UInt32 sleeptime;
  73
  74 static void mac_startup(void);
  75 static void mac_eventloop(void);
  76 #pragma noreturn (mac_eventloop)
  77 static void mac_event(EventRecord *);
  78 static void mac_contentclick(WindowPtr, EventRecord *);
  79 static void mac_growwindow(WindowPtr, EventRecord *);
  80 static void mac_activatewindow(WindowPtr, EventRecord *);
  81 static void mac_suspendresume(EventRecord *);
  82 static void mac_activateabout(WindowPtr, EventRecord *);
  83 static void mac_updatewindow(WindowPtr);
  84 static void mac_updatelicence(WindowPtr);
  85 static void mac_keypress(EventRecord *);
  86 static int mac_windowtype(WindowPtr);
  87 static void mac_menucommand(long);
  88 static void mac_openlicence(void);
  89 static void mac_adjustcursor(RgnHandle);
  90 static void mac_adjustmenus(void);
  91 static void mac_closewindow(WindowPtr);
  92 static void mac_zoomwindow(WindowPtr, short);
  93 #pragma noreturn (cleanup_exit)
  94
  95 struct mac_windows {
  96     WindowPtr about;
  97     WindowPtr licence;
  98 };
  99
 100 struct mac_windows windows;
 101
 102 int main (int argc, char **argv) {
 103
 104     mac_startup();
 105     mac_eventloop();
 106 }
 107
 108 #pragma noreturn (main)
 109
 110 static void mac_startup(void) {
 111     Handle menuBar;
 112     TECInfoHandle ti;
 113
 114 #if !TARGET_API_MAC_CARBON
 115     /* Init Memory Manager */
 116     MaxApplZone();
 117     /* Init QuickDraw */
 118     InitGraf(&qd.thePort);
 119     /* Init Font Manager */
 120     InitFonts();
 121     /* Init Window Manager */
 122     InitWindows();
 123     /* Init Menu Manager */
 124     InitMenus();
 125     /* Init TextEdit */
 126     TEInit();
 127     /* Init Dialog Manager */
 128     InitDialogs(NULL);
 129 #endif
 130     cold = 0;
 131
 132     /* Get base system version (only used if there's no better selector) */
 133     if (Gestalt(gestaltSystemVersion, &mac_gestalts.sysvers) != noErr ||
 134         (mac_gestalts.sysvers &= 0xffff) < 0x700)
 135         fatalbox("PuTTY requires System 7 or newer");
 136     /* Find out if we've got Color Quickdraw */
 137     if (Gestalt(gestaltQuickdrawVersion, &mac_gestalts.qdvers) != noErr)
 138         mac_gestalts.qdvers = gestaltOriginalQD;
 139     /* ... and the Appearance Manager? */
 140     if (Gestalt(gestaltAppearanceVersion, &mac_gestalts.apprvers) != noErr)
 141         if (Gestalt(gestaltAppearanceAttr, NULL) == noErr)
 142             mac_gestalts.apprvers = 0x0100;
 143         else
 144             mac_gestalts.apprvers = 0;
 145 #if TARGET_RT_MAC_CFM
 146     /* Paranoia: Did we manage to pull in AppearanceLib? */
 147     if (&RegisterAppearanceClient == kUnresolvedCFragSymbolAddress)
 148         mac_gestalts.apprvers = 0;
 149 #endif
 150 #if TARGET_CPU_68K
 151     mac_gestalts.cntlattr = 0;
 152     mac_gestalts.windattr = 0;
 153 #else
 154     /* Mac OS 8.5 Control Manager (proportional scrollbars)? */
 155     if (Gestalt(gestaltControlMgrAttr, &mac_gestalts.cntlattr) != noErr ||
 156         &SetControlViewSize == kUnresolvedCFragSymbolAddress)
 157         mac_gestalts.cntlattr = 0;
 158     /* Mac OS 8.5 Window Manager? */
 159     if (Gestalt(gestaltWindowMgrAttr, &mac_gestalts.windattr) != noErr ||
 160         &SetWindowContentColor == kUnresolvedCFragSymbolAddress)
 161         mac_gestalts.windattr = 0;
 162     /* Mac OS 8.5 Menu Manager? */
 163     if (Gestalt(gestaltMenuMgrAttr, &mac_gestalts.menuattr) != noErr)
 164         mac_gestalts.menuattr = 0;
 165 #endif
 166     /* Text Encoding Conversion Manager? */
 167     if (
 168 #if TARGET_RT_MAC_CFM
 169         &TECGetInfo == kUnresolvedCFragSymbolAddress ||
 170 #else
 171         InitializeUnicodeConverter(NULL) != noErr ||
 172 #endif
 173         TECGetInfo(&ti) != noErr)
 174         mac_gestalts.encvvers = 0;
 175     else {
 176         mac_gestalts.encvvers = (*ti)->tecVersion;
 177         mac_gestalts.uncvattr = (*ti)->tecUnicodeConverterFeatures;
 178         DisposeHandle((Handle)ti);
 179     }
 180     /* Navigation Services? */
 181     if (NavServicesAvailable())
 182         mac_gestalts.navsvers = NavLibraryVersion();
 183     else
 184         mac_gestalts.navsvers = 0;
 185
 186     sk_init();
 187
 188     /* We've been tested with the Appearance Manager */
 189     if (mac_gestalts.apprvers != 0)
 190         RegisterAppearanceClient();
 191
 192     menuBar = GetNewMBar(128);
 193     if (menuBar == NULL)
 194         fatalbox("Unable to create menu bar.");
 195     SetMenuBar(menuBar);
 196     AppendResMenu(GetMenuHandle(mApple), 'DRVR');
 197     if (mac_gestalts.menuattr & gestaltMenuMgrAquaLayoutMask) {
 198         DeleteMenuItem(GetMenuHandle(mFile), iQuit);
 199         /* Also delete the separator above the Quit item. */
 200         DeleteMenuItem(GetMenuHandle(mFile), iQuit - 1);
 201     }
 202     mac_adjustmenus();
 203     DrawMenuBar();
 204     InitCursor();
 205     windows.about = NULL;
 206     windows.licence = NULL;
 207
 208     default_protocol = be_default_protocol;
 209     /* Find the appropriate default port. */
 210     {
 211         int i;
 212         default_port = 0; /* illegal */
 213         for (i = 0; backends[i].backend != NULL; i++)
 214             if (backends[i].protocol == default_protocol) {
 215                 default_port = backends[i].backend->default_port;
 216                 break;
 217             }
 218     }
 219     flags = FLAG_INTERACTIVE;
 220
 221 #if !TARGET_API_MAC_CARBON
 222     {
 223         short vol;
 224         long dirid;
 225
 226         /* Set the default directory for loading and saving settings. */
 227         /* XXX Should we create it? */
 228         if (get_session_dir(FALSE, &vol, &dirid) == noErr) {
 229             LMSetSFSaveDisk(-vol);
 230             LMSetCurDirStore(dirid);
 231         }
 232     }
 233 #endif
 234
 235     /* Install Apple Event handlers. */
 236     AEInstallEventHandler(kCoreEventClass, kAEOpenApplication,
 237                           NewAEEventHandlerUPP(&mac_aevt_oapp), 0, FALSE);
 238     AEInstallEventHandler(kCoreEventClass, kAEOpenDocuments,
 239                           NewAEEventHandlerUPP(&mac_aevt_odoc), 0, FALSE);
 240     AEInstallEventHandler(kCoreEventClass, kAEPrintDocuments,
 241                           NewAEEventHandlerUPP(&mac_aevt_pdoc), 0, FALSE);
 242     AEInstallEventHandler(kCoreEventClass, kAEQuitApplication,
 243                           NewAEEventHandlerUPP(&mac_aevt_quit), 0, FALSE);
 244 }
 245
 246 static void mac_eventloop(void) {
 247     Boolean gotevent;
 248     EventRecord event;
 249     RgnHandle cursrgn;
 250
 251     cursrgn = NewRgn();
 252     sleeptime = 0;
 253     for (;;) {
 254         mac_adjustcursor(cursrgn);
 255         gotevent = WaitNextEvent(everyEvent, &event, sleeptime, cursrgn);
 256         /*
 257          * XXX For now, limit sleep time to 1/10 s to work around
 258          * wake-before-sleep race in MacTCP code.
 259          */
 260         sleeptime = 6;
 261         mac_adjustcursor(cursrgn);
 262         if (gotevent) {
 263             /* Ensure we get a null event when the real ones run out. */
 264             sleeptime = 0;
 265             mac_event(&event);
 266             if (borednow)
 267                 cleanup_exit(0);
 268         }
 269         sk_poll();
 270         if (!gotevent)
 271             mac_pollterm();
 272     }
 273     DisposeRgn(cursrgn);
 274 }
 275
 276 static void mac_event(EventRecord *event) {
 277     short part;
 278     WindowPtr window;
 279
 280     switch (event->what) {
 281       case mouseDown:
 282         part = FindWindow(event->where, &window);
 283         switch (part) {
 284           case inMenuBar:
 285             mac_adjustmenus();
 286             mac_menucommand(MenuSelect(event->where));
 287             break;
 288 #if !TARGET_API_MAC_CARBON
 289           case inSysWindow:
 290             SystemClick(event, window);
 291             break;
 292 #endif
 293           case inContent:
 294             if (window != FrontWindow())
 295                 /* XXX: check for movable modal dboxes? */
 296                 SelectWindow(window);
 297             else
 298                 mac_contentclick(window, event);
 299             break;
 300           case inGoAway:
 301             if (TrackGoAway(window, event->where))
 302                 mac_closewindow(window);
 303             break;
 304           case inDrag:
 305             /* XXX: moveable modal check? */
 306 #if TARGET_API_MAC_CARBON
 307             {
 308                 BitMap screenBits;
 309
 310                 GetQDGlobalsScreenBits(&screenBits);
 311                 DragWindow(window, event->where, &screenBits.bounds);
 312             }
 313 #else
 314             DragWindow(window, event->where, &qd.screenBits.bounds);
 315 #endif
 316             break;
 317           case inGrow:
 318             mac_growwindow(window, event);
 319             break;
 320           case inZoomIn:
 321           case inZoomOut:
 322             if (TrackBox(window, event->where, part))
 323                 mac_zoomwindow(window, part);
 324             break;
 325         }
 326         break;
 327       case keyDown:
 328       case autoKey:
 329         mac_keypress(event);
 330         break;
 331       case activateEvt:
 332         mac_activatewindow((WindowPtr)event->message, event);
 333         break;
 334       case updateEvt:
 335         mac_updatewindow((WindowPtr)event->message);
 336         break;
 337 #if !TARGET_API_MAC_CARBON
 338       case diskEvt:
 339         if (HiWord(event->message) != noErr) {
 340             Point pt;
 341
 342             SetPt(&pt, 120, 120);
 343             DIBadMount(pt, event->message);
 344         }
 345         break;
 346 #endif
 347       case osEvt:
 348         switch ((event->message & osEvtMessageMask) >> 24) {
 349           case suspendResumeMessage:
 350             mac_suspendresume(event);
 351             break;
 352         }
 353         break;
 354       case kHighLevelEvent:
 355         AEProcessAppleEvent(event); /* errors? */
 356         break;
 357     }
 358 }
 359
 360 static void mac_contentclick(WindowPtr window, EventRecord *event)
 361 {
 362
 363     if (mac_wininfo(window)->click != NULL)
 364         (*mac_wininfo(window)->click)(window, event);
 365 }
 366
 367 static void mac_growwindow(WindowPtr window, EventRecord *event)
 368 {
 369
 370     if (mac_wininfo(window)->grow != NULL)
 371         (*mac_wininfo(window)->grow)(window, event);
 372 }
 373
 374 static void mac_activatewindow(WindowPtr window, EventRecord *event)
 375 {
 376
 377     mac_adjustmenus();
 378     if (mac_wininfo(window)->activate != NULL)
 379         (*mac_wininfo(window)->activate)(window, event);
 380 }
 381
 382 static void mac_updatewindow(WindowPtr window)
 383 {
 384
 385     if (mac_wininfo(window)->update != NULL)
 386         (*mac_wininfo(window)->update)(window);
 387 }
 388
 389 /*
 390  * Work out what kind of window we're dealing with.
 391  */
 392 static int mac_windowtype(WindowPtr window)
 393 {
 394
 395 #if !TARGET_API_MAC_CARBON
 396     if (GetWindowKind(window) < 0)
 397         return wDA;
 398 #endif
 399     return ((WinInfo *)GetWRefCon(window))->wtype;
 400 }
 401
 402 /*
 403  * Handle a key press
 404  */
 405 static void mac_keypress(EventRecord *event) {
 406     WindowPtr window;
 407
 408     window = mac_frontwindow();
 409     /*
 410      * Check for a command-key combination, but ignore it if it counts
 411      * as a meta-key combination and we're in a terminal window.
 412      */
 413     if (event->what == keyDown && (event->modifiers & cmdKey) /*&&
 414         !((event->modifiers & cfg.meta_modifiers) == cfg.meta_modifiers &&
 415             mac_windowtype(window) == wTerminal)*/) {
 416         mac_adjustmenus();
 417         mac_menucommand(MenuKey(event->message & charCodeMask));
 418     } else {
 419         if (window != NULL && mac_wininfo(window)->key != NULL)
 420             (*mac_wininfo(window)->key)(window, event);
 421     }
 422 }
 423
 424 static void mac_menucommand(long result) {
 425     short menu, item;
 426     WindowPtr window;
 427 #if !TARGET_API_MAC_CARBON
 428     Str255 da;
 429 #endif
 430
 431     menu = HiWord(result);
 432     item = LoWord(result);
 433     window = mac_frontwindow();
 434     /* Things which do the same whatever window we're in. */
 435     switch (menu) {
 436       case mApple:
 437         switch (item) {
 438           case iAbout:
 439             mac_openabout();
 440             goto done;
 441 #if !TARGET_API_MAC_CARBON
 442           default:
 443             GetMenuItemText(GetMenuHandle(mApple), item, da);
 444             OpenDeskAcc(da);
 445             goto done;
 446 #endif
 447         }
 448         break;
 449       case mFile:
 450         switch (item) {
 451           case iNew:
 452             mac_newsession();
 453             goto done;
 454           case iOpen:
 455             mac_opensession();
 456             goto done;
 457           case iClose:
 458             mac_closewindow(window);
 459             goto done;
 460           case iSave:
 461             mac_savesession();
 462             goto done;
 463           case iSaveAs:
 464             mac_savesessionas();
 465             goto done;
 466           case iDuplicate:
 467             mac_dupsession();
 468             goto done;
 469           case iQuit:
 470             cleanup_exit(0);
 471             goto done;
 472         }
 473         break;
 474     }
 475     /* If we get here, handling is up to window-specific code. */
 476     if (window != NULL && mac_wininfo(window)->menu != NULL)
 477         (*mac_wininfo(window)->menu)(window, menu, item);
 478
 479   done:
 480     HiliteMenu(0);
 481 }
 482
 483 static void mac_closewindow(WindowPtr window) {
 484
 485     switch (mac_windowtype(window)) {
 486 #if !TARGET_API_MAC_CARBON
 487       case wDA:
 488         CloseDeskAcc(GetWindowKind(window));
 489         break;
 490 #endif
 491       default:
 492         if (mac_wininfo(window)->close != NULL)
 493             (*mac_wininfo(window)->close)(window);
 494         break;
 495     }
 496 }
 497
 498 static void mac_suspendresume(EventRecord *event)
 499 {
 500     WindowPtr front;
 501     EventRecord fakeevent;
 502
 503     /*
 504      * We're called either before we're suspended or after we're
 505      * resumed, so we're the front application at this point.
 506      */
 507     front = FrontWindow();
 508     if (front != NULL) {
 509         fakeevent.what = activateEvt;
 510         fakeevent.message = (UInt32)front;
 511         fakeevent.when = event->when;
 512         fakeevent.where = event->where;
 513         fakeevent.modifiers =
 514             (event->message & resumeFlag) ? activeFlag : 0;
 515         mac_activatewindow(front, &fakeevent);
 516     }
 517 }
 518
 519 static void mac_zoomwindow(WindowPtr window, short part) {
 520
 521     /* FIXME: do something */
 522 }
 523
 524 /*
 525  * Make the menus look right before the user gets to see them.
 526  */
 527 #if TARGET_API_MAC_CARBON
 528 #define EnableItem EnableMenuItem
 529 #define DisableItem DisableMenuItem
 530 #endif
 531 static void mac_adjustmenus(void) {
 532     WindowPtr window;
 533     MenuHandle menu;
 534
 535     window = mac_frontwindow();
 536     menu = GetMenuHandle(mApple);
 537     EnableItem(menu, 0);
 538     EnableItem(menu, iAbout);
 539
 540     menu = GetMenuHandle(mFile);
 541     EnableItem(menu, 0);
 542     EnableItem(menu, iNew);
 543     if (window != NULL)
 544         EnableItem(menu, iClose);
 545     else
 546         DisableItem(menu, iClose);
 547     EnableItem(menu, iQuit);
 548
 549     if (window != NULL && mac_wininfo(window)->adjustmenus != NULL)
 550         (*mac_wininfo(window)->adjustmenus)(window);
 551     else {
 552         DisableItem(menu, iSave);
 553         DisableItem(menu, iSaveAs);
 554         DisableItem(menu, iDuplicate);
 555         menu = GetMenuHandle(mEdit);
 556         DisableItem(menu, 0);
 557         menu = GetMenuHandle(mWindow);
 558         DisableItem(menu, 0); /* Until we get more than 1 item on it. */
 559     }
 560     DrawMenuBar();
 561 }
 562
 563 /*
 564  * Make sure the right cursor's being displayed.
 565  */
 566 static void mac_adjustcursor(RgnHandle cursrgn) {
 567     Point mouse;
 568     WindowPtr window, front;
 569     short part;
 570 #if TARGET_API_MAC_CARBON
 571     Cursor arrow;
 572     RgnHandle visrgn;
 573 #endif
 574
 575     GetMouse(&mouse);
 576     LocalToGlobal(&mouse);
 577     part = FindWindow(mouse, &window);
 578     front = FrontWindow();
 579     if (part != inContent || window == NULL || window != front) {
 580         /* Cursor isn't in the front window, so switch to arrow */
 581 #if TARGET_API_MAC_CARBON
 582         GetQDGlobalsArrow(&arrow);
 583         SetCursor(&arrow);
 584 #else
 585         SetCursor(&qd.arrow);
 586 #endif
 587         SetRectRgn(cursrgn, SHRT_MIN, SHRT_MIN, SHRT_MAX, SHRT_MAX);
 588         if (front != NULL) {
 589 #if TARGET_API_MAC_CARBON
 590             visrgn = NewRgn();
 591             GetPortVisibleRegion(GetWindowPort(front), visrgn);
 592             DiffRgn(cursrgn, visrgn, cursrgn);
 593             DisposeRgn(visrgn);
 594 #else
 595             DiffRgn(cursrgn, front->visRgn, cursrgn);
 596 #endif
 597         }
 598     } else {
 599         if (mac_wininfo(window)->adjustcursor != NULL)
 600             (*mac_wininfo(window)->adjustcursor)(window, mouse, cursrgn);
 601         else {
 602 #if TARGET_API_MAC_CARBON
 603             GetQDGlobalsArrow(&arrow);
 604             SetCursor(&arrow);
 605             GetPortVisibleRegion(GetWindowPort(window), cursrgn);
 606 #else
 607             SetCursor(&qd.arrow);
 608             CopyRgn(window->visRgn, cursrgn);
 609 #endif
 610         }
 611     }
 612 }
 613
 614 pascal OSErr mac_aevt_quit(const AppleEvent *req, AppleEvent *reply,
 615                                   long refcon)
 616 {
 617     DescType type;
 618     Size size;
 619
 620     if (AEGetAttributePtr(req, keyMissedKeywordAttr, typeWildCard,
 621                           &type, NULL, 0, &size) == noErr)
 622         return errAEParamMissed;
 623
 624     borednow = 1;
 625     return noErr;
 626 }
 627
 628 void cleanup_exit(int status)
 629 {
 630
 631 #if !TARGET_RT_MAC_CFM
 632     if (mac_gestalts.encvvers != 0)
 633         TerminateUnicodeConverter();
 634 #endif
 635     sk_cleanup();
 636     exit(status);
 637 }
 638
 639 /* This should only kill the current session, not the whole application. */
 640 void connection_fatal(void *fontend, char *fmt, ...) {
 641     va_list ap;
 642     Str255 stuff;
 643
 644     va_start(ap, fmt);
 645     /* We'd like stuff to be a Pascal string */
 646     stuff[0] = vsprintf((char *)(&stuff[1]), fmt, ap);
 647     va_end(ap);
 648     ParamText(stuff, NULL, NULL, NULL);
 649     StopAlert(128, NULL);
 650     cleanup_exit(1);
 651 }
 652
 653 /* Null SSH agent client -- never finds an agent. */
 654
 655 int agent_exists(void)
 656 {
 657
 658     return FALSE;
 659 }
 660
 661 void agent_query(void *in, int inlen, void **out, int *outlen)
 662 {
 663
 664     *out = NULL;
 665     *outlen = 0;
 666 }
 667
 668 /* Temporary null routines for testing. */
 669
 670 /*
 671  * FIXME: verify_ssh_host_key() should be passed a frontend handle,
 672  * but backends have to have a terminal handle instead, because they
 673  * pass it to from_backend(), so we accept a terminal handle here as
 674  * well, and hope no-one tries to call us with sensible arguments.
 675  */
 676 void verify_ssh_host_key(void *frontend, char *host, int port, char *keytype,
 677                          char *keystr, char *fingerprint)
 678 {
 679     Str255 stuff;
 680     Terminal *term = frontend;
 681     Session *s = term->frontend;
 682
 683     /*
 684      * This function is horribly wrong.  For one thing, the alert
 685      * shouldn't be modal, it should be movable modal, or a sheet in
 686      * Aqua.  Also, PuTTY might be in the background, in which case we
 687      * should use the Notification Manager to wake up the user.  In
 688      * any case, we shouldn't hold up processing of other connections'
 689      * data just because this one's waiting for the user.  It should
 690      * also handle a host key cache, of course, and see the note above
 691      * about the "frontend" argument and the one below about closing
 692      * the connection.  All in all, a bit of a mess really.
 693      */
 694
 695     stuff[0] = sprintf((char *)(&stuff[1]),
 696                        "The server's key fingerprint is: %s\n"
 697                        "Continue connecting?", fingerprint);
 698     ParamText(stuff, NULL, NULL, NULL);
 699     if (CautionAlert(wQuestion, NULL) == 2) {
 700         /*
 701          * User chose "Cancel".  Unfortunately, if I tear the
 702          * connection down here, Bad Things happen when I return.  I
 703          * think this function should actually return something
 704          * telling the SSH code to abandon the connection.
 705          */
 706     }
 707 }
 708
 709 void askcipher(void *frontend, char *ciphername, int cs)
 710 {
 711
 712 }
 713
 714 void old_keyfile_warning(void)
 715 {
 716
 717 }
 718
 719 FontSpec platform_default_fontspec(char const *name)
 720 {
 721     FontSpec ret;
 722     long smfs;
 723
 724     if (!strcmp(name, "Font")) {
 725         smfs = GetScriptVariable(smSystemScript, smScriptMonoFondSize);
 726         if (smfs == 0)
 727             smfs = GetScriptVariable(smRoman, smScriptMonoFondSize);
 728         if (smfs != 0) {
 729             GetFontName(HiWord(smfs), ret.name);
 730             if (ret.name[0] == 0)
 731                 memcpy(ret.name, "\pMonaco", 7);
 732             ret.size = LoWord(smfs);
 733         } else {
 734             memcpy(ret.name, "\pMonaco", 7);
 735             ret.size = 9;
 736         }
 737         ret.face = 0;
 738     } else {
 739         ret.name[0] = 0;
 740     }
 741
 742     return ret;
 743 }
 744
 745 Filename platform_default_filename(const char *name)
 746 {
 747     Filename ret;
 748     if (!strcmp(name, "LogFileName"))
 749         FSMakeFSSpec(0, 0, "\pputty.log", &ret.fss);
 750     else
 751         memset(&ret, 0, sizeof(ret));
 752     return ret;
 753 }
 754
 755 char *platform_default_s(char const *name)
 756 {
 757     return NULL;
 758 }
 759
 760 int platform_default_i(char const *name, int def)
 761 {
 762
 763     /* Non-raw cut and paste of line-drawing chars works badly on the
 764      * current Unix stub implementation of the Unicode functions.
 765      * So I'm going to temporarily set the default to raw mode so
 766      * that the failure mode isn't quite so drastically horrid.
 767      * When Unicode comes in, this can all be put right. */
 768     if (!strcmp(name, "RawCNP"))
 769         return 1;
 770     return def;
 771 }
 772
 773 void platform_get_x11_auth(char *display, int *proto,
 774                            unsigned char *data, int *datalen)
 775 {
 776     /* SGT: I have no idea whether Mac X servers need anything here. */
 777 }
 778
 779 /*
 780  * Local Variables:
 781  * c-file-style: "simon"
 782  * End:
 783  */