git.distorted.org.uk Git - u/mdw/putty/blob - windows/winstuff.h

   1 /*
   2  * winstuff.h: Windows-specific inter-module stuff.
   3  */
   4
   5 #ifndef PUTTY_WINSTUFF_H
   6 #define PUTTY_WINSTUFF_H
   7
   8 #ifndef AUTO_WINSOCK
   9 #include <winsock2.h>
  10 #endif
  11 #include <windows.h>
  12 #include <stdio.h>                     /* for FILENAME_MAX */
  13
  14 #include "tree234.h"
  15
  16 #include "winhelp.h"
  17
  18 struct Filename {
  19     char *path;
  20 };
  21 #define f_open(filename, mode, isprivate) ( fopen((filename)->path, (mode)) )
  22
  23 struct FontSpec {
  24     char *name;
  25     int isbold;
  26     int height;
  27     int charset;
  28 };
  29 struct FontSpec *fontspec_new(const char *name,
  30                                int bold, int height, int charset);
  31
  32 #ifndef CLEARTYPE_QUALITY
  33 #define CLEARTYPE_QUALITY 5
  34 #endif
  35 #define FONT_QUALITY(fq) ( \
  36     (fq) == FQ_DEFAULT ? DEFAULT_QUALITY : \
  37     (fq) == FQ_ANTIALIASED ? ANTIALIASED_QUALITY : \
  38     (fq) == FQ_NONANTIALIASED ? NONANTIALIASED_QUALITY : \
  39     CLEARTYPE_QUALITY)
  40
  41 #define PLATFORM_IS_UTF16 /* enable UTF-16 processing when exchanging
  42                            * wchar_t strings with environment */
  43
  44 /*
  45  * Where we can, we use GetWindowLongPtr and friends because they're
  46  * more useful on 64-bit platforms, but they're a relatively recent
  47  * innovation, missing from VC++ 6 and older MinGW.  Degrade nicely.
  48  * (NB that on some systems, some of these things are available but
  49  * not others...)
  50  */
  51
  52 #ifndef GCLP_HCURSOR
  53 /* GetClassLongPtr and friends */
  54 #undef  GetClassLongPtr
  55 #define GetClassLongPtr GetClassLong
  56 #undef  SetClassLongPtr
  57 #define SetClassLongPtr SetClassLong
  58 #define GCLP_HCURSOR GCL_HCURSOR
  59 /* GetWindowLongPtr and friends */
  60 #undef  GetWindowLongPtr
  61 #define GetWindowLongPtr GetWindowLong
  62 #undef  SetWindowLongPtr
  63 #define SetWindowLongPtr SetWindowLong
  64 #undef  GWLP_USERDATA
  65 #define GWLP_USERDATA GWL_USERDATA
  66 #undef  DWLP_MSGRESULT
  67 #define DWLP_MSGRESULT DWL_MSGRESULT
  68 /* Since we've clobbered the above functions, we should clobber the
  69  * associated type regardless of whether it's defined. */
  70 #undef LONG_PTR
  71 #define LONG_PTR LONG
  72 #endif
  73
  74 #define BOXFLAGS DLGWINDOWEXTRA
  75 #define BOXRESULT (DLGWINDOWEXTRA + sizeof(LONG_PTR))
  76 #define DF_END 0x0001
  77
  78 /*
  79  * Dynamically linked functions. These come in two flavours:
  80  *
  81  *  - GET_WINDOWS_FUNCTION does not expose "name" to the preprocessor,
  82  *    so will always dynamically link against exactly what is specified
  83  *    in "name". If you're not sure, use this one.
  84  *
  85  *  - GET_WINDOWS_FUNCTION_PP allows "name" to be redirected via
  86  *    preprocessor definitions like "#define foo bar"; this is principally
  87  *    intended for the ANSI/Unicode DoSomething/DoSomethingA/DoSomethingW.
  88  *    If your function has an argument of type "LPTSTR" or similar, this
  89  *    is the variant to use.
  90  *    (However, it can't always be used, as it trips over more complicated
  91  *    macro trickery such as the WspiapiGetAddrInfo wrapper for getaddrinfo.)
  92  *
  93  * (DECL_WINDOWS_FUNCTION works with both these variants.)
  94  */
  95 #define DECL_WINDOWS_FUNCTION(linkage, rettype, name, params) \
  96     typedef rettype (WINAPI *t_##name) params; \
  97     linkage t_##name p_##name
  98 #define STR1(x) #x
  99 #define STR(x) STR1(x)
 100 #define GET_WINDOWS_FUNCTION_PP(module, name) \
 101     (p_##name = module ? (t_##name) GetProcAddress(module, STR(name)) : NULL)
 102 #define GET_WINDOWS_FUNCTION(module, name) \
 103     (p_##name = module ? (t_##name) GetProcAddress(module, #name) : NULL)
 104
 105 /*
 106  * Global variables. Most modules declare these `extern', but
 107  * window.c will do `#define PUTTY_DO_GLOBALS' before including this
 108  * module, and so will get them properly defined.
 109 */
 110 #ifndef GLOBAL
 111 #ifdef PUTTY_DO_GLOBALS
 112 #define GLOBAL
 113 #else
 114 #define GLOBAL extern
 115 #endif
 116 #endif
 117
 118 #ifndef DONE_TYPEDEFS
 119 #define DONE_TYPEDEFS
 120 typedef struct conf_tag Conf;
 121 typedef struct backend_tag Backend;
 122 typedef struct terminal_tag Terminal;
 123 #endif
 124
 125 #define PUTTY_REG_POS "Software\\SimonTatham\\PuTTY"
 126 #define PUTTY_REG_PARENT "Software\\SimonTatham"
 127 #define PUTTY_REG_PARENT_CHILD "PuTTY"
 128 #define PUTTY_REG_GPARENT "Software"
 129 #define PUTTY_REG_GPARENT_CHILD "SimonTatham"
 130
 131 /* Result values for the jumplist registry functions. */
 132 #define JUMPLISTREG_OK 0
 133 #define JUMPLISTREG_ERROR_INVALID_PARAMETER 1
 134 #define JUMPLISTREG_ERROR_KEYOPENCREATE_FAILURE 2
 135 #define JUMPLISTREG_ERROR_VALUEREAD_FAILURE 3
 136 #define JUMPLISTREG_ERROR_VALUEWRITE_FAILURE 4
 137 #define JUMPLISTREG_ERROR_INVALID_VALUE 5
 138
 139 #define PUTTY_HELP_FILE "putty.hlp"
 140 #define PUTTY_CHM_FILE "putty.chm"
 141 #define PUTTY_HELP_CONTENTS "putty.cnt"
 142
 143 #define GETTICKCOUNT GetTickCount
 144 #define CURSORBLINK GetCaretBlinkTime()
 145 #define TICKSPERSEC 1000               /* GetTickCount returns milliseconds */
 146
 147 #define DEFAULT_CODEPAGE CP_ACP
 148 #define USES_VTLINE_HACK
 149
 150 typedef HDC Context;
 151
 152 typedef unsigned int uint32; /* int is 32-bits on Win32 and Win64. */
 153 #define PUTTY_UINT32_DEFINED
 154
 155 #ifndef NO_GSSAPI
 156 /*
 157  * GSS-API stuff
 158  */
 159 #define GSS_CC CALLBACK
 160 /*
 161 typedef struct Ssh_gss_buf {
 162     size_t length;
 163     char *value;
 164 } Ssh_gss_buf;
 165
 166 #define SSH_GSS_EMPTY_BUF (Ssh_gss_buf) {0,NULL}
 167 typedef void *Ssh_gss_name;
 168 */
 169 #endif
 170
 171 /*
 172  * Window handles for the windows that can be running during a
 173  * PuTTY session.
 174  */
 175 GLOBAL HWND hwnd;       /* the main terminal window */
 176 GLOBAL HWND logbox;
 177
 178 /*
 179  * The all-important instance handle.
 180  */
 181 GLOBAL HINSTANCE hinst;
 182
 183 /*
 184  * Help file stuff in winhelp.c.
 185  */
 186 void init_help(void);
 187 void shutdown_help(void);
 188 int has_help(void);
 189 void launch_help(HWND hwnd, const char *topic);
 190 void quit_help(HWND hwnd);
 191
 192 /*
 193  * The terminal and logging context are notionally local to the
 194  * Windows front end, but they must be shared between window.c and
 195  * windlg.c. Likewise the saved-sessions list.
 196  */
 197 GLOBAL Terminal *term;
 198 GLOBAL void *logctx;
 199
 200 #define WM_NETEVENT  (WM_APP + 5)
 201
 202 /*
 203  * On Windows, we send MA_2CLK as the only event marking the second
 204  * press of a mouse button. Compare unix.h.
 205  */
 206 #define MULTICLICK_ONLY_EVENT 1
 207
 208 /*
 209  * On Windows, data written to the clipboard must be NUL-terminated.
 210  */
 211 #define SELECTION_NUL_TERMINATED 1
 212
 213 /*
 214  * On Windows, copying to the clipboard terminates lines with CRLF.
 215  */
 216 #define SEL_NL { 13, 10 }
 217
 218 /*
 219  * sk_getxdmdata() does not exist under Windows (not that I
 220  * couldn't write it if I wanted to, but I haven't bothered), so
 221  * it's a macro which always returns NULL. With any luck this will
 222  * cause the compiler to notice it can optimise away the
 223  * implementation of XDM-AUTHORIZATION-1 in x11fwd.c :-)
 224  */
 225 #define sk_getxdmdata(socket, lenp) (NULL)
 226
 227 /*
 228  * File-selector filter strings used in the config box. On Windows,
 229  * these strings are of exactly the type needed to go in
 230  * `lpstrFilter' in an OPENFILENAME structure.
 231  */
 232 #define FILTER_KEY_FILES ("PuTTY Private Key Files (*.ppk)\0*.ppk\0" \
 233                               "All Files (*.*)\0*\0\0\0")
 234 #define FILTER_WAVE_FILES ("Wave Files (*.wav)\0*.WAV\0" \
 235                                "All Files (*.*)\0*\0\0\0")
 236 #define FILTER_DYNLIB_FILES ("Dynamic Library Files (*.dll)\0*.dll\0" \
 237                                  "All Files (*.*)\0*\0\0\0")
 238
 239 /*
 240  * On some versions of Windows, it has been known for WM_TIMER to
 241  * occasionally get its callback time simply wrong, and call us
 242  * back several minutes early. Defining these symbols enables
 243  * compensation code in timing.c.
 244  */
 245 #define TIMING_SYNC
 246 #define TIMING_SYNC_TICKCOUNT
 247
 248 /*
 249  * winnet.c dynamically loads WinSock 2 or WinSock 1 depending on
 250  * what it can get, which means any WinSock routines used outside
 251  * that module must be exported from it as function pointers. So
 252  * here they are.
 253  */
 254 DECL_WINDOWS_FUNCTION(GLOBAL, int, WSAAsyncSelect,
 255                       (SOCKET, HWND, u_int, long));
 256 DECL_WINDOWS_FUNCTION(GLOBAL, int, WSAEventSelect,
 257                       (SOCKET, WSAEVENT, long));
 258 DECL_WINDOWS_FUNCTION(GLOBAL, int, select,
 259                       (int, fd_set FAR *, fd_set FAR *,
 260                        fd_set FAR *, const struct timeval FAR *));
 261 DECL_WINDOWS_FUNCTION(GLOBAL, int, WSAGetLastError, (void));
 262 DECL_WINDOWS_FUNCTION(GLOBAL, int, WSAEnumNetworkEvents,
 263                       (SOCKET, WSAEVENT, LPWSANETWORKEVENTS));
 264
 265 extern int socket_writable(SOCKET skt);
 266
 267 extern void socket_reselect_all(void);
 268
 269 /*
 270  * Exports from winctrls.c.
 271  */
 272
 273 struct ctlpos {
 274     HWND hwnd;
 275     WPARAM font;
 276     int dlu4inpix;
 277     int ypos, width;
 278     int xoff;
 279     int boxystart, boxid;
 280     char *boxtext;
 281 };
 282
 283 /*
 284  * Exports from winutils.c.
 285  */
 286 typedef struct filereq_tag filereq; /* cwd for file requester */
 287 BOOL request_file(filereq *state, OPENFILENAME *of, int preserve, int save);
 288 filereq *filereq_new(void);
 289 void filereq_free(filereq *state);
 290 int message_box(LPCTSTR text, LPCTSTR caption, DWORD style, DWORD helpctxid);
 291 char *GetDlgItemText_alloc(HWND hwnd, int id);
 292 void split_into_argv(char *, int *, char ***, char ***);
 293
 294 /*
 295  * Private structure for prefslist state. Only in the header file
 296  * so that we can delegate allocation to callers.
 297  */
 298 struct prefslist {
 299     int listid, upbid, dnbid;
 300     int srcitem;
 301     int dummyitem;
 302     int dragging;
 303 };
 304
 305 /*
 306  * This structure is passed to event handler functions as the `dlg'
 307  * parameter, and hence is passed back to winctrls access functions.
 308  */
 309 struct dlgparam {
 310     HWND hwnd;                         /* the hwnd of the dialog box */
 311     struct winctrls *controltrees[8];  /* can have several of these */
 312     int nctrltrees;
 313     char *wintitle;                    /* title of actual window */
 314     char *errtitle;                    /* title of error sub-messageboxes */
 315     void *data;                        /* data to pass in refresh events */
 316     union control *focused, *lastfocused; /* which ctrl has focus now/before */
 317     char shortcuts[128];               /* track which shortcuts in use */
 318     int coloursel_wanted;              /* has an event handler asked for
 319                                         * a colour selector? */
 320     struct { unsigned char r, g, b, ok; } coloursel_result;   /* 0-255 */
 321     tree234 *privdata;                 /* stores per-control private data */
 322     int ended, endresult;              /* has the dialog been ended? */
 323     int fixed_pitch_fonts;             /* are we constrained to fixed fonts? */
 324 };
 325
 326 /*
 327  * Exports from winctrls.c.
 328  */
 329 void ctlposinit(struct ctlpos *cp, HWND hwnd,
 330                 int leftborder, int rightborder, int topborder);
 331 HWND doctl(struct ctlpos *cp, RECT r,
 332            char *wclass, int wstyle, int exstyle, char *wtext, int wid);
 333 void bartitle(struct ctlpos *cp, char *name, int id);
 334 void beginbox(struct ctlpos *cp, char *name, int idbox);
 335 void endbox(struct ctlpos *cp);
 336 void editboxfw(struct ctlpos *cp, int password, char *text,
 337                int staticid, int editid);
 338 void radioline(struct ctlpos *cp, char *text, int id, int nacross, ...);
 339 void bareradioline(struct ctlpos *cp, int nacross, ...);
 340 void radiobig(struct ctlpos *cp, char *text, int id, ...);
 341 void checkbox(struct ctlpos *cp, char *text, int id);
 342 void statictext(struct ctlpos *cp, char *text, int lines, int id);
 343 void staticbtn(struct ctlpos *cp, char *stext, int sid,
 344                char *btext, int bid);
 345 void static2btn(struct ctlpos *cp, char *stext, int sid,
 346                 char *btext1, int bid1, char *btext2, int bid2);
 347 void staticedit(struct ctlpos *cp, char *stext,
 348                 int sid, int eid, int percentedit);
 349 void staticddl(struct ctlpos *cp, char *stext,
 350                int sid, int lid, int percentlist);
 351 void combobox(struct ctlpos *cp, char *text, int staticid, int listid);
 352 void staticpassedit(struct ctlpos *cp, char *stext,
 353                     int sid, int eid, int percentedit);
 354 void bigeditctrl(struct ctlpos *cp, char *stext,
 355                  int sid, int eid, int lines);
 356 void ersatztab(struct ctlpos *cp, char *stext, int sid, int lid, int s2id);
 357 void editbutton(struct ctlpos *cp, char *stext, int sid,
 358                 int eid, char *btext, int bid);
 359 void sesssaver(struct ctlpos *cp, char *text,
 360                int staticid, int editid, int listid, ...);
 361 void envsetter(struct ctlpos *cp, char *stext, int sid,
 362                char *e1stext, int e1sid, int e1id,
 363                char *e2stext, int e2sid, int e2id,
 364                int listid, char *b1text, int b1id, char *b2text, int b2id);
 365 void charclass(struct ctlpos *cp, char *stext, int sid, int listid,
 366                char *btext, int bid, int eid, char *s2text, int s2id);
 367 void colouredit(struct ctlpos *cp, char *stext, int sid, int listid,
 368                 char *btext, int bid, ...);
 369 void prefslist(struct prefslist *hdl, struct ctlpos *cp, int lines,
 370                char *stext, int sid, int listid, int upbid, int dnbid);
 371 int handle_prefslist(struct prefslist *hdl,
 372                      int *array, int maxmemb,
 373                      int is_dlmsg, HWND hwnd,
 374                      WPARAM wParam, LPARAM lParam);
 375 void progressbar(struct ctlpos *cp, int id);
 376 void fwdsetter(struct ctlpos *cp, int listid, char *stext, int sid,
 377                char *e1stext, int e1sid, int e1id,
 378                char *e2stext, int e2sid, int e2id,
 379                char *btext, int bid,
 380                char *r1text, int r1id, char *r2text, int r2id);
 381
 382 void dlg_auto_set_fixed_pitch_flag(void *dlg);
 383 int dlg_get_fixed_pitch_flag(void *dlg);
 384 void dlg_set_fixed_pitch_flag(void *dlg, int flag);
 385
 386 #define MAX_SHORTCUTS_PER_CTRL 16
 387
 388 /*
 389  * This structure is what's stored for each `union control' in the
 390  * portable-dialog interface.
 391  */
 392 struct winctrl {
 393     union control *ctrl;
 394     /*
 395      * The control may have several components at the Windows
 396      * level, with different dialog IDs. To avoid needing N
 397      * separate platformsidectrl structures (which could be stored
 398      * separately in a tree234 so that lookup by ID worked), we
 399      * impose the constraint that those IDs must be in a contiguous
 400      * block.
 401      */
 402     int base_id;
 403     int num_ids;
 404     /*
 405      * Remember what keyboard shortcuts were used by this control,
 406      * so that when we remove it again we can take them out of the
 407      * list in the dlgparam.
 408      */
 409     char shortcuts[MAX_SHORTCUTS_PER_CTRL];
 410     /*
 411      * Some controls need a piece of allocated memory in which to
 412      * store temporary data about the control.
 413      */
 414     void *data;
 415 };
 416 /*
 417  * And this structure holds a set of the above, in two separate
 418  * tree234s so that it can find an item by `union control' or by
 419  * dialog ID.
 420  */
 421 struct winctrls {
 422     tree234 *byctrl, *byid;
 423 };
 424 struct controlset;
 425 struct controlbox;
 426
 427 void winctrl_init(struct winctrls *);
 428 void winctrl_cleanup(struct winctrls *);
 429 void winctrl_add(struct winctrls *, struct winctrl *);
 430 void winctrl_remove(struct winctrls *, struct winctrl *);
 431 struct winctrl *winctrl_findbyctrl(struct winctrls *, union control *);
 432 struct winctrl *winctrl_findbyid(struct winctrls *, int);
 433 struct winctrl *winctrl_findbyindex(struct winctrls *, int);
 434 void winctrl_layout(struct dlgparam *dp, struct winctrls *wc,
 435                     struct ctlpos *cp, struct controlset *s, int *id);
 436 int winctrl_handle_command(struct dlgparam *dp, UINT msg,
 437                            WPARAM wParam, LPARAM lParam);
 438 void winctrl_rem_shortcuts(struct dlgparam *dp, struct winctrl *c);
 439 int winctrl_context_help(struct dlgparam *dp, HWND hwnd, int id);
 440
 441 void dp_init(struct dlgparam *dp);
 442 void dp_add_tree(struct dlgparam *dp, struct winctrls *tree);
 443 void dp_cleanup(struct dlgparam *dp);
 444
 445 /*
 446  * Exports from wincfg.c.
 447  */
 448 void win_setup_config_box(struct controlbox *b, HWND *hwndp, int has_help,
 449                           int midsession, int protocol);
 450
 451 /*
 452  * Exports from windlg.c.
 453  */
 454 void defuse_showwindow(void);
 455 int do_config(void);
 456 int do_reconfig(HWND, int);
 457 void showeventlog(HWND);
 458 void showabout(HWND);
 459 void force_normal(HWND hwnd);
 460 void modal_about_box(HWND hwnd);
 461 void show_help(HWND hwnd);
 462
 463 /*
 464  * Exports from winmisc.c.
 465  */
 466 extern OSVERSIONINFO osVersion;
 467 BOOL init_winver(void);
 468 HMODULE load_system32_dll(const char *libname);
 469
 470 /*
 471  * Exports from sizetip.c.
 472  */
 473 void UpdateSizeTip(HWND src, int cx, int cy);
 474 void EnableSizeTip(int bEnable);
 475
 476 /*
 477  * Exports from unicode.c.
 478  */
 479 struct unicode_data;
 480 void init_ucs(Conf *, struct unicode_data *);
 481
 482 /*
 483  * Exports from winhandl.c.
 484  */
 485 #define HANDLE_FLAG_OVERLAPPED 1
 486 #define HANDLE_FLAG_IGNOREEOF 2
 487 #define HANDLE_FLAG_UNITBUFFER 4
 488 struct handle;
 489 typedef int (*handle_inputfn_t)(struct handle *h, void *data, int len);
 490 typedef void (*handle_outputfn_t)(struct handle *h, int new_backlog);
 491 struct handle *handle_input_new(HANDLE handle, handle_inputfn_t gotdata,
 492                                 void *privdata, int flags);
 493 struct handle *handle_output_new(HANDLE handle, handle_outputfn_t sentdata,
 494                                  void *privdata, int flags);
 495 int handle_write(struct handle *h, const void *data, int len);
 496 void handle_write_eof(struct handle *h);
 497 HANDLE *handle_get_events(int *nevents);
 498 void handle_free(struct handle *h);
 499 void handle_got_event(HANDLE event);
 500 void handle_unthrottle(struct handle *h, int backlog);
 501 int handle_backlog(struct handle *h);
 502 void *handle_get_privdata(struct handle *h);
 503
 504 /*
 505  * winpgntc.c needs to schedule callbacks for asynchronous agent
 506  * requests. This has to be done differently in GUI and console, so
 507  * there's an exported function used for the purpose.
 508  *
 509  * Also, we supply FLAG_SYNCAGENT to force agent requests to be
 510  * synchronous in pscp and psftp.
 511  */
 512 void agent_schedule_callback(void (*callback)(void *, void *, int),
 513                              void *callback_ctx, void *data, int len);
 514 #define FLAG_SYNCAGENT 0x1000
 515
 516 /*
 517  * winpgntc.c also exports these two functions which are used by the
 518  * server side of Pageant as well, to get the user SID for comparing
 519  * with clients'.
 520  */
 521 int init_advapi(void);  /* initialises everything needed by get_user_sid */
 522 PSID get_user_sid(void);
 523
 524 /*
 525  * Exports from winser.c.
 526  */
 527 extern Backend serial_backend;
 528
 529 /*
 530  * Exports from winjump.c.
 531  */
 532 #define JUMPLIST_SUPPORTED             /* suppress #defines in putty.h */
 533 void add_session_to_jumplist(const char * const sessionname);
 534 void remove_session_from_jumplist(const char * const sessionname);
 535 void clear_jumplist(void);
 536
 537 /*
 538  * Extra functions in winstore.c over and above the interface in
 539  * storage.h.
 540  *
 541  * These functions manipulate the Registry section which mirrors the
 542  * current Windows 7 jump list. (Because the real jump list storage is
 543  * write-only, we need to keep another copy of whatever we put in it,
 544  * so that we can put in a slightly modified version the next time.)
 545  */
 546
 547 /* Adds a saved session to the registry jump list mirror. 'item' is a
 548  * string naming a saved session. */
 549 int add_to_jumplist_registry(const char *item);
 550
 551 /* Removes an item from the registry jump list mirror. */
 552 int remove_from_jumplist_registry(const char *item);
 553
 554 /* Returns the current jump list entries from the registry. Caller
 555  * must free the returned pointer, which points to a contiguous
 556  * sequence of NUL-terminated strings in memory, terminated with an
 557  * empty one. */
 558 char *get_jumplist_registry_entries(void);
 559
 560 #endif