git.oblomov.eu Git - wine/blob - programs/wineconsole/wineconsole.c

   1 /*
   2  * an application for displaying Win32 console
   3  *
   4  * Copyright 2001, 2002 Eric Pouech
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <stdio.h>
  25 #include "wine/server.h"
  26 #include "winecon_private.h"
  27 #include "winnls.h"
  28
  29 #include "wine/debug.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(wineconsole);
  32
  33 void WINECON_Fatal(const char* msg)
  34 {
  35     WINE_ERR("%s\n", msg);
  36     ExitProcess(0);
  37 }
  38
  39 /******************************************************************
  40  *              WINECON_FetchCells
  41  *
  42  * updates the local copy of cells (band to update)
  43  */
  44 void WINECON_FetchCells(struct inner_data* data, int upd_tp, int upd_bm)
  45 {
  46     SERVER_START_REQ( read_console_output )
  47     {
  48         req->handle = (obj_handle_t)data->hConOut;
  49         req->x      = 0;
  50         req->y      = upd_tp;
  51         req->mode   = CHAR_INFO_MODE_TEXTATTR;
  52         req->wrap   = TRUE;
  53         wine_server_set_reply( req, &data->cells[upd_tp * data->curcfg.sb_width],
  54                                (upd_bm-upd_tp+1) * data->curcfg.sb_width * sizeof(CHAR_INFO) );
  55         wine_server_call( req );
  56     }
  57     SERVER_END_REQ;
  58     data->fnRefresh(data, upd_tp, upd_bm);
  59 }
  60
  61 /******************************************************************
  62  *              WINECON_NotifyWindowChange
  63  *
  64  * Inform server that visible window on sb has changed
  65  */
  66 void WINECON_NotifyWindowChange(struct inner_data* data)
  67 {
  68     SERVER_START_REQ( set_console_output_info )
  69     {
  70         req->handle       = (obj_handle_t)data->hConOut;
  71         req->win_left     = data->curcfg.win_pos.X;
  72         req->win_top      = data->curcfg.win_pos.Y;
  73         req->win_right    = data->curcfg.win_pos.X + data->curcfg.win_width - 1;
  74         req->win_bottom   = data->curcfg.win_pos.Y + data->curcfg.win_height - 1;
  75         req->mask         = SET_CONSOLE_OUTPUT_INFO_DISPLAY_WINDOW;
  76         wine_server_call( req );
  77     }
  78     SERVER_END_REQ;
  79 }
  80
  81 /******************************************************************
  82  *              WINECON_GetHistorySize
  83  *
  84  *
  85  */
  86 int     WINECON_GetHistorySize(HANDLE hConIn)
  87 {
  88     int ret = 0;
  89
  90     SERVER_START_REQ(get_console_input_info)
  91     {
  92         req->handle = (obj_handle_t)hConIn;
  93         if (!wine_server_call_err( req )) ret = reply->history_size;
  94     }
  95     SERVER_END_REQ;
  96     return ret;
  97 }
  98
  99 /******************************************************************
 100  *              WINECON_SetHistorySize
 101  *
 102  *
 103  */
 104 BOOL    WINECON_SetHistorySize(HANDLE hConIn, int size)
 105 {
 106     BOOL        ret;
 107
 108     SERVER_START_REQ(set_console_input_info)
 109     {
 110         req->handle = (obj_handle_t)hConIn;
 111         req->mask = SET_CONSOLE_INPUT_INFO_HISTORY_SIZE;
 112         req->history_size = size;
 113         ret = !wine_server_call_err( req );
 114     }
 115     SERVER_END_REQ;
 116     return ret;
 117 }
 118
 119
 120 /******************************************************************
 121  *              WINECON_GetHistoryMode
 122  *
 123  *
 124  */
 125 int     WINECON_GetHistoryMode(HANDLE hConIn)
 126 {
 127     int ret = 0;
 128
 129     SERVER_START_REQ(get_console_input_info)
 130     {
 131         req->handle = (obj_handle_t)hConIn;
 132         if (!wine_server_call_err( req )) ret = reply->history_mode;
 133     }
 134     SERVER_END_REQ;
 135     return ret;
 136 }
 137
 138 /******************************************************************
 139  *              WINECON_SetHistoryMode
 140  *
 141  *
 142  */
 143 BOOL    WINECON_SetHistoryMode(HANDLE hConIn, int mode)
 144 {
 145     BOOL        ret;
 146
 147     SERVER_START_REQ(set_console_input_info)
 148     {
 149         req->handle = (obj_handle_t)hConIn;
 150         req->mask = SET_CONSOLE_INPUT_INFO_HISTORY_MODE;
 151         req->history_mode = mode;
 152         ret = !wine_server_call_err( req );
 153     }
 154     SERVER_END_REQ;
 155     return ret;
 156 }
 157
 158 /******************************************************************
 159  *              WINECON_GetConsoleTitle
 160  *
 161  *
 162  */
 163 BOOL WINECON_GetConsoleTitle(HANDLE hConIn, WCHAR* buffer, size_t len)
 164 {
 165     BOOL ret;
 166
 167     if (len < sizeof(WCHAR)) return FALSE;
 168
 169     SERVER_START_REQ( get_console_input_info )
 170     {
 171         req->handle = (obj_handle_t)hConIn;
 172         wine_server_set_reply( req, buffer, len - sizeof(WCHAR) );
 173         if ((ret = !wine_server_call_err( req )))
 174         {
 175             len = wine_server_reply_size( reply );
 176             buffer[len / sizeof(WCHAR)] = 0;
 177         }
 178     }
 179     SERVER_END_REQ;
 180     return ret;
 181 }
 182
 183 /******************************************************************
 184  *              WINECON_SetEditionMode
 185  *
 186  *
 187  */
 188 static BOOL WINECON_SetEditionMode(HANDLE hConIn, int edition_mode)
 189 {
 190     BOOL ret;
 191
 192     SERVER_START_REQ( set_console_input_info )
 193     {
 194         req->handle = (obj_handle_t)hConIn;
 195         req->mask = SET_CONSOLE_INPUT_INFO_EDITION_MODE;
 196         req->edition_mode = edition_mode;
 197         ret = !wine_server_call_err( req );
 198     }
 199     SERVER_END_REQ;
 200     return ret;
 201 }
 202
 203 /******************************************************************
 204  *              WINECON_GrabChanges
 205  *
 206  * A change occurs, try to figure out which
 207  */
 208 int     WINECON_GrabChanges(struct inner_data* data)
 209 {
 210     struct console_renderer_event       evts[256];
 211     int i, num, ev_found;
 212     HANDLE h;
 213
 214     SERVER_START_REQ( get_console_renderer_events )
 215     {
 216         wine_server_set_reply( req, evts, sizeof(evts) );
 217         req->handle = (obj_handle_t)data->hSynchro;
 218         if (!wine_server_call_err( req )) num = wine_server_reply_size(reply) / sizeof(evts[0]);
 219         else num = 0;
 220     }
 221     SERVER_END_REQ;
 222     if (!num) {WINE_WARN("hmm renderer signaled but no events available\n"); return 1;}
 223
 224     /* FIXME: should do some event compression here (cursor pos, update) */
 225     /* step 1: keep only last cursor pos event */
 226     ev_found = -1;
 227     for (i = num - 1; i >= 0; i--)
 228     {
 229         if (evts[i].event == CONSOLE_RENDERER_CURSOR_POS_EVENT)
 230         {
 231             if (ev_found != -1) evts[ev_found].event = CONSOLE_RENDERER_NONE_EVENT;
 232             ev_found = i;
 233         }
 234     }
 235     /* step 2: manage update events */
 236     ev_found = -1;
 237     for (i = 0; i < num - 1; i++)
 238     {
 239         if (evts[i].event == CONSOLE_RENDERER_NONE_EVENT) continue;
 240         if (evts[i].event != CONSOLE_RENDERER_UPDATE_EVENT)
 241         {
 242             ev_found = -1;
 243             continue;
 244             }
 245
 246         if (ev_found != -1 &&
 247             !(evts[i       ].u.update.bottom + 1 < evts[ev_found].u.update.top ||
 248               evts[ev_found].u.update.bottom + 1 < evts[i       ].u.update.top))
 249         {
 250             evts[i].u.update.top    = min(evts[i       ].u.update.top,
 251                                           evts[ev_found].u.update.top);
 252             evts[i].u.update.bottom = max(evts[i       ].u.update.bottom,
 253                                           evts[ev_found].u.update.bottom);
 254             evts[ev_found].event = CONSOLE_RENDERER_NONE_EVENT;
 255         }
 256         ev_found = i;
 257     }
 258
 259     WINE_TRACE("Events:");
 260     for (i = 0; i < num; i++)
 261     {
 262         switch (evts[i].event)
 263         {
 264         case CONSOLE_RENDERER_NONE_EVENT:
 265             break;
 266         case CONSOLE_RENDERER_TITLE_EVENT:
 267             data->fnSetTitle(data);
 268             break;
 269         case CONSOLE_RENDERER_ACTIVE_SB_EVENT:
 270             SERVER_START_REQ( open_console )
 271             {
 272                 req->from    = (int)data->hConIn;
 273                 req->access  = GENERIC_READ | GENERIC_WRITE;
 274                 req->share   = FILE_SHARE_READ | FILE_SHARE_WRITE;
 275                 req->inherit = FALSE;
 276                 h = wine_server_call_err( req ) ? 0 : (HANDLE)reply->handle;
 277             }
 278             SERVER_END_REQ;
 279             WINE_TRACE(" active(%d)", (int)h);
 280             if (h)
 281             {
 282                 CloseHandle(data->hConOut);
 283                 data->hConOut = h;
 284             }
 285             break;
 286         case CONSOLE_RENDERER_SB_RESIZE_EVENT:
 287             if (data->curcfg.sb_width != evts[i].u.resize.width ||
 288                 data->curcfg.sb_height != evts[i].u.resize.height || !data->cells)
 289             {
 290                 WINE_TRACE(" resize(%d,%d)", evts[i].u.resize.width, evts[i].u.resize.height);
 291                 data->curcfg.sb_width  = evts[i].u.resize.width;
 292                 data->curcfg.sb_height = evts[i].u.resize.height;
 293
 294                 data->cells = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, data->cells,
 295                                           data->curcfg.sb_width * data->curcfg.sb_height * sizeof(CHAR_INFO));
 296                 if (!data->cells) WINECON_Fatal("OOM\n");
 297                 data->fnResizeScreenBuffer(data);
 298                 data->fnComputePositions(data);
 299             }
 300             break;
 301         case CONSOLE_RENDERER_UPDATE_EVENT:
 302             WINE_TRACE(" update(%d,%d)", evts[i].u.update.top, evts[i].u.update.bottom);
 303             WINECON_FetchCells(data, evts[i].u.update.top, evts[i].u.update.bottom);
 304             break;
 305         case CONSOLE_RENDERER_CURSOR_POS_EVENT:
 306             if (evts[i].u.cursor_pos.x != data->cursor.X || evts[i].u.cursor_pos.y != data->cursor.Y)
 307             {
 308                 WINE_TRACE(" curs-pos(%d,%d)",evts[i].u.cursor_pos.x, evts[i].u.cursor_pos.y);
 309                 data->cursor.X = evts[i].u.cursor_pos.x;
 310                 data->cursor.Y = evts[i].u.cursor_pos.y;
 311                 data->fnPosCursor(data);
 312             }
 313             break;
 314         case CONSOLE_RENDERER_CURSOR_GEOM_EVENT:
 315             if (evts[i].u.cursor_geom.size != data->curcfg.cursor_size ||
 316                 evts[i].u.cursor_geom.visible != data->curcfg.cursor_visible)
 317             {
 318                 WINE_TRACE(" curs-geom(%d,%d)",
 319                            evts[i].u.cursor_geom.size, evts[i].u.cursor_geom.visible);
 320                 data->fnShapeCursor(data, evts[i].u.cursor_geom.size,
 321                                     evts[i].u.cursor_geom.visible, FALSE);
 322             }
 323             break;
 324         case CONSOLE_RENDERER_DISPLAY_EVENT:
 325             if (evts[i].u.display.left != data->curcfg.win_pos.X)
 326             {
 327                 WINE_TRACE(" h-scroll(%d)", evts[i].u.display.left);
 328                 data->fnScroll(data, evts[i].u.display.left, TRUE);
 329                 data->fnPosCursor(data);
 330             }
 331             if (evts[i].u.display.top != data->curcfg.win_pos.Y)
 332             {
 333                 WINE_TRACE(" v-scroll(%d)", evts[i].u.display.top);
 334                 data->fnScroll(data, evts[i].u.display.top, FALSE);
 335                 data->fnPosCursor(data);
 336             }
 337             if (evts[i].u.display.width != data->curcfg.win_width ||
 338                 evts[i].u.display.height != data->curcfg.win_height)
 339             {
 340                 WINE_TRACE(" win-size(%d,%d)", evts[i].u.display.width, evts[i].u.display.height);
 341                 data->curcfg.win_width = evts[i].u.display.width;
 342                 data->curcfg.win_height = evts[i].u.display.height;
 343                 data->fnComputePositions(data);
 344             }
 345             break;
 346         case CONSOLE_RENDERER_EXIT_EVENT:
 347             WINE_TRACE(". Exit!!\n");
 348             return 0;
 349         default:
 350             WINE_FIXME("Unknown event type (%d)\n", evts[i].event);
 351         }
 352     }
 353
 354     WINE_TRACE(".\n");
 355     return 1;
 356 }
 357
 358 /******************************************************************
 359  *              WINECON_SetConfig
 360  *
 361  * Apply to data all the configuration elements from cfg. This includes modification
 362  * of server side equivalent and visual parts.
 363  * If force is FALSE, only the changed items are modified.
 364  */
 365 void     WINECON_SetConfig(struct inner_data* data,
 366                            const struct config_data* cfg, BOOL force)
 367 {
 368     if (force || data->curcfg.cursor_size != cfg->cursor_size ||
 369         data->curcfg.cursor_visible != cfg->cursor_visible)
 370     {
 371         CONSOLE_CURSOR_INFO cinfo;
 372         cinfo.dwSize = cfg->cursor_size;
 373         /* <FIXME>: this hack is needed to pass thru the invariant test operation on server side
 374          * (no notification is sent when invariant operation is requested
 375          */
 376         cinfo.bVisible = !cfg->cursor_visible;
 377         SetConsoleCursorInfo(data->hConOut, &cinfo);
 378         /* </FIXME> */
 379         cinfo.bVisible = cfg->cursor_visible;
 380         /* this shall update (through notif) curcfg */
 381         SetConsoleCursorInfo(data->hConOut, &cinfo);
 382     }
 383     if (force || data->curcfg.history_size != cfg->history_size)
 384     {
 385         data->curcfg.history_size = cfg->history_size;
 386         WINECON_SetHistorySize(data->hConIn, cfg->history_size);
 387     }
 388     if (force || data->curcfg.history_nodup != cfg->history_nodup)
 389     {
 390         data->curcfg.history_nodup = cfg->history_nodup;
 391         WINECON_SetHistoryMode(data->hConIn, cfg->history_nodup);
 392     }
 393     data->curcfg.menu_mask = cfg->menu_mask;
 394     data->curcfg.quick_edit = cfg->quick_edit;
 395     if (force || 1 /* FIXME: font info has changed */)
 396     {
 397         data->fnSetFont(data, cfg->face_name, cfg->cell_height, cfg->font_weight);
 398     }
 399     if (force || data->curcfg.def_attr != cfg->def_attr)
 400     {
 401         data->curcfg.def_attr = cfg->def_attr;
 402         SetConsoleTextAttribute(data->hConOut, cfg->def_attr);
 403     }
 404     /* now let's look at the window / sb size changes...
 405      * since the server checks that sb is always bigger than window,
 406      * we have to take care of doing the operations in the right order
 407      */
 408     /* a set of macros to make things easier to read
 409      * The Test<A><B> macros test if the <A> (width/height) needs to be changed
 410      * for <B> (window / ScreenBuffer)
 411      * The Change<A><B> actually modify the <B> dimension of <A>.
 412      */
 413 #define TstSBfWidth()   (force || data->curcfg.sb_width != cfg->sb_width)
 414 #define TstWinWidth()   (force || data->curcfg.win_width != cfg->win_width)
 415
 416 #define ChgSBfWidth()   do {c.X = cfg->sb_width; \
 417                             c.Y = data->curcfg.sb_height;\
 418                             SetConsoleScreenBufferSize(data->hConOut, c);\
 419                         } while (0)
 420 #define ChgWinWidth()   do {pos.Left = pos.Top = 0; \
 421                             pos.Right = cfg->win_width - 1; \
 422                             pos.Bottom = data->curcfg.win_height - 1; \
 423                             SetConsoleWindowInfo(data->hConOut, FALSE, &pos);\
 424                         } while (0)
 425 #define TstSBfHeight()  (force || data->curcfg.sb_height != cfg->sb_height)
 426 #define TstWinHeight()  (force || data->curcfg.win_height != cfg->win_height)
 427
 428 /* since we're going to apply height after width is done, we use width as defined
 429  * in cfg, and not in data->curcfg because if won't be updated yet */
 430 #define ChgSBfHeight()  do {c.X = cfg->sb_width; c.Y = cfg->sb_height; \
 431                             SetConsoleScreenBufferSize(data->hConOut, c); \
 432                         } while (0)
 433 #define ChgWinHeight()  do {pos.Left = pos.Top = 0; \
 434                             pos.Right = cfg->win_width - 1; \
 435                             pos.Bottom = cfg->win_height - 1; \
 436                             SetConsoleWindowInfo(data->hConOut, FALSE, &pos);\
 437                         } while (0)
 438
 439     do
 440     {
 441         COORD       c;
 442         SMALL_RECT  pos;
 443
 444         if (TstSBfWidth())
 445         {
 446             if (TstWinWidth())
 447             {
 448                 /* we're changing both at the same time, do it in the right order */
 449                 if (cfg->sb_width >= data->curcfg.win_width)
 450                 {
 451                     ChgSBfWidth(); ChgWinWidth();
 452                 }
 453                 else
 454                 {
 455                     ChgWinWidth(); ChgSBfWidth();
 456                 }
 457             }
 458             else ChgSBfWidth();
 459         }
 460         else if (TstWinWidth()) ChgWinWidth();
 461         if (TstSBfHeight())
 462         {
 463             if (TstWinHeight())
 464             {
 465                 if (cfg->sb_height >= data->curcfg.win_height)
 466                 {
 467                     ChgSBfHeight(); ChgWinHeight();
 468                 }
 469                 else
 470                 {
 471                     ChgWinHeight(); ChgSBfHeight();
 472                 }
 473             }
 474             else ChgSBfHeight();
 475         }
 476         else if (TstWinHeight()) ChgWinHeight();
 477     } while (0);
 478 #undef TstSBfWidth
 479 #undef TstWinWidth
 480 #undef ChgSBfWidth
 481 #undef ChgWinWidth
 482 #undef TstSBfHeight
 483 #undef TstWinHeight
 484 #undef ChgSBfHeight
 485 #undef ChgWinHeight
 486
 487     data->curcfg.exit_on_die = cfg->exit_on_die;
 488     if (force || data->curcfg.edition_mode != cfg->edition_mode)
 489     {
 490         data->curcfg.edition_mode = cfg->edition_mode;
 491         WINECON_SetEditionMode(data->hConIn, cfg->edition_mode);
 492     }
 493     /* we now need to gather all events we got from the operations above,
 494      * in order to get data correctly updated
 495      */
 496     WINECON_GrabChanges(data);
 497 }
 498
 499 /******************************************************************
 500  *              WINECON_Delete
 501  *
 502  * Destroy wineconsole internal data
 503  */
 504 static void WINECON_Delete(struct inner_data* data)
 505 {
 506     if (!data) return;
 507
 508     if (data->fnDeleteBackend)  data->fnDeleteBackend(data);
 509     if (data->hConIn)           CloseHandle(data->hConIn);
 510     if (data->hConOut)          CloseHandle(data->hConOut);
 511     if (data->hSynchro)         CloseHandle(data->hSynchro);
 512     if (data->cells)            HeapFree(GetProcessHeap(), 0, data->cells);
 513     HeapFree(GetProcessHeap(), 0, data);
 514 }
 515
 516 /******************************************************************
 517  *              WINECON_Init
 518  *
 519  * Initialisation part I. Creation of server object (console input and
 520  * active screen buffer)
 521  */
 522 static struct inner_data* WINECON_Init(HINSTANCE hInst, DWORD pid, LPCWSTR appname,
 523                                        enum init_return (*backend)(struct inner_data*))
 524 {
 525     struct inner_data*  data = NULL;
 526     DWORD               ret;
 527     struct config_data  cfg;
 528     STARTUPINFOW        si;
 529
 530     data = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data));
 531     if (!data) return 0;
 532
 533     GetStartupInfo(&si);
 534
 535     if (pid == 0)
 536     {
 537         if (!si.lpTitle) WINECON_Fatal("Should have a title set");
 538         appname = si.lpTitle;
 539     }
 540
 541     /* load settings */
 542     WINECON_RegLoad(appname, &cfg);
 543
 544     /* some overrides */
 545     if (pid == 0)
 546     {
 547         if (si.dwFlags & STARTF_USECOUNTCHARS)
 548         {
 549             cfg.sb_width  = si.dwXCountChars;
 550             cfg.sb_height = si.dwYCountChars;
 551         }
 552         if (si.dwFlags & STARTF_USEFILLATTRIBUTE)
 553             cfg.def_attr = si.dwFillAttribute;
 554         /* should always be defined */
 555     }
 556
 557     /* the handles here are created without the whistles and bells required by console
 558      * (mainly because wineconsole doesn't need it)
 559      * - they are not inheritable
 560      * - hConIn is not synchronizable
 561      */
 562     SERVER_START_REQ(alloc_console)
 563     {
 564         req->access     = GENERIC_READ | GENERIC_WRITE;
 565         req->inherit    = FALSE;
 566         req->pid        = pid;
 567
 568         ret = !wine_server_call_err( req );
 569         data->hConIn = (HANDLE)reply->handle_in;
 570         data->hSynchro = (HANDLE)reply->event;
 571     }
 572     SERVER_END_REQ;
 573     if (!ret) goto error;
 574     WINE_TRACE("using hConIn %p, hSynchro event %p\n", data->hConIn, data->hSynchro);
 575
 576     SERVER_START_REQ( set_console_input_info )
 577     {
 578         req->handle = (obj_handle_t)data->hConIn;
 579         req->mask = SET_CONSOLE_INPUT_INFO_TITLE;
 580         wine_server_add_data( req, appname, lstrlenW(appname) * sizeof(WCHAR) );
 581         ret = !wine_server_call_err( req );
 582     }
 583     SERVER_END_REQ;
 584     if (!ret) goto error;
 585
 586     SERVER_START_REQ(create_console_output)
 587     {
 588         req->handle_in = (obj_handle_t)data->hConIn;
 589         req->access    = GENERIC_WRITE|GENERIC_READ;
 590         req->share     = FILE_SHARE_READ|FILE_SHARE_WRITE;
 591         req->inherit   = FALSE;
 592         ret = !wine_server_call_err( req );
 593         data->hConOut  = (HANDLE)reply->handle_out;
 594     }
 595     SERVER_END_REQ;
 596     if (!ret) goto error;
 597     WINE_TRACE("using hConOut %p\n", data->hConOut);
 598
 599     /* filling data->curcfg from cfg */
 600  retry:
 601     switch ((*backend)(data))
 602     {
 603     case init_success:
 604         WINECON_SetConfig(data, &cfg, TRUE);
 605         data->curcfg.registry = cfg.registry;
 606         WINECON_DumpConfig("fint", &data->curcfg);
 607         return data;
 608     case init_failed:
 609         break;
 610     case init_not_supported:
 611         if (backend == WCCURSES_InitBackend)
 612         {
 613             WINE_ERR("(n)curses was not found at configuration time.\n"
 614                      "If you want (n)curses support, please install relevant packages.\n"
 615                      "Now forcing user backend instead of (n)curses.\n");
 616             backend = WCUSER_InitBackend;
 617             goto retry;
 618         }
 619         break;
 620     }
 621
 622  error:
 623     WINE_ERR("failed to init.\n");
 624
 625     WINECON_Delete(data);
 626     return NULL;
 627 }
 628
 629 /******************************************************************
 630  *              WINECON_Spawn
 631  *
 632  * Spawn the child process when invoked with wineconsole foo bar
 633  */
 634 static BOOL WINECON_Spawn(struct inner_data* data, LPWSTR cmdLine)
 635 {
 636     PROCESS_INFORMATION info;
 637     STARTUPINFO         startup;
 638     BOOL                done;
 639
 640     /* we're in the case wineconsole <exe> <options>... spawn the new process */
 641     memset(&startup, 0, sizeof(startup));
 642     startup.cb          = sizeof(startup);
 643     startup.dwFlags     = STARTF_USESTDHANDLES;
 644
 645     /* the attributes of wineconsole's handles are not adequate for inheritance, so
 646      * get them with the correct attributes before process creation
 647      */
 648     if (!DuplicateHandle(GetCurrentProcess(), data->hConIn,  GetCurrentProcess(),
 649                          &startup.hStdInput, GENERIC_READ|GENERIC_WRITE|SYNCHRONIZE, TRUE, 0) ||
 650         !DuplicateHandle(GetCurrentProcess(), data->hConOut, GetCurrentProcess(),
 651                          &startup.hStdOutput, GENERIC_READ|GENERIC_WRITE, TRUE, 0) ||
 652         !DuplicateHandle(GetCurrentProcess(), data->hConOut, GetCurrentProcess(),
 653                          &startup.hStdError, GENERIC_READ|GENERIC_WRITE, TRUE, 0))
 654     {
 655         WINE_ERR("Can't dup handles\n");
 656         /* no need to delete handles, we're exiting the programm anyway */
 657         return FALSE;
 658     }
 659
 660     done = CreateProcess(NULL, cmdLine, NULL, NULL, TRUE, 0L, NULL, NULL, &startup, &info);
 661
 662     /* we no longer need the handles passed to the child for the console */
 663     CloseHandle(startup.hStdInput);
 664     CloseHandle(startup.hStdOutput);
 665     CloseHandle(startup.hStdError);
 666
 667     CloseHandle(info.hProcess);
 668     CloseHandle(info.hThread);
 669
 670     return done;
 671 }
 672
 673 struct wc_init {
 674     LPCSTR              ptr;
 675     enum {from_event, from_process_name} mode;
 676     enum init_return    (*backend)(struct inner_data*);
 677     HANDLE              event;
 678 };
 679
 680 /******************************************************************
 681  *               WINECON_ParseOptions
 682  *
 683  *
 684  */
 685 static BOOL WINECON_ParseOptions(const char* lpCmdLine, struct wc_init* wci)
 686 {
 687     memset(wci, 0, sizeof(*wci));
 688     wci->ptr = lpCmdLine;
 689     wci->mode = from_process_name;
 690     wci->backend = WCCURSES_InitBackend;
 691
 692     for (;;)
 693     {
 694         while (*wci->ptr == ' ' || *wci->ptr == '\t') wci->ptr++;
 695         if (wci->ptr[0] != '-') break;
 696         if (strncmp(wci->ptr, "--use-event=", 12) == 0)
 697         {
 698             char*           end;
 699             wci->event = (HANDLE)strtol(wci->ptr + 12, &end, 10);
 700             if (end == wci->ptr + 12) return FALSE;
 701             wci->mode = from_event;
 702             wci->ptr = end;
 703             wci->backend = WCUSER_InitBackend;
 704         }
 705         else if (strncmp(wci->ptr, "--backend=", 10) == 0)
 706         {
 707             if (strncmp(wci->ptr + 10, "user", 4) == 0)
 708             {
 709                 wci->backend = WCUSER_InitBackend;
 710                 wci->ptr += 14;
 711             }
 712             else if (strncmp(wci->ptr + 10, "curses", 6) == 0)
 713             {
 714                 wci->ptr += 16;
 715             }
 716             else
 717                 return FALSE;
 718         }
 719         else
 720             return FALSE;
 721     }
 722
 723     return TRUE;
 724 }
 725
 726 /******************************************************************
 727  *              WinMain
 728  *
 729  * wineconsole can either be started as:
 730  *      wineconsole --use-event=<int>   used when a new console is created (AllocConsole)
 731  *      wineconsole <pgm> <arguments>   used to start the program <pgm> from the command line in
 732  *                                      a freshly created console
 733  * --backend=(curses|user) can also be used to select the desired backend
 734  */
 735 int PASCAL WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR lpCmdLine, INT nCmdShow)
 736 {
 737     struct inner_data*  data;
 738     int                 ret = 1;
 739     struct wc_init      wci;
 740
 741     if (!WINECON_ParseOptions(lpCmdLine, &wci))
 742     {
 743         WINE_ERR("Wrong command line options\n");
 744         return 0;
 745     }
 746
 747     switch (wci.mode)
 748     {
 749     case from_event:
 750         /* case of wineconsole <evt>, signal process that created us that we're up and running */
 751         if (!(data = WINECON_Init(hInst, 0, NULL, wci.backend))) return 0;
 752         ret = SetEvent(wci.event);
 753         if (!ret) WINE_ERR("SetEvent failed.\n");
 754         break;
 755     case from_process_name:
 756         {
 757             WCHAR           buffer[256];
 758
 759             MultiByteToWideChar(CP_ACP, 0, wci.ptr, -1, buffer, sizeof(buffer) / sizeof(buffer[0]));
 760
 761             if (!(data = WINECON_Init(hInst, GetCurrentProcessId(), buffer, wci.backend)))
 762                 return 0;
 763             ret = WINECON_Spawn(data, buffer);
 764             if (!ret)
 765                 WINE_MESSAGE("wineconsole: spawning client program failed (%s), invalid/missing command line arguments ?\n", wine_dbgstr_w(buffer));
 766         }
 767         break;
 768     default:
 769         return 0;
 770     }
 771
 772     if (ret)
 773     {
 774         WINE_TRACE("calling MainLoop.\n");
 775         ret = data->fnMainLoop(data);
 776     }
 777
 778     WINECON_Delete(data);
 779
 780     return ret;
 781 }