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