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; i++)
 238     {
 239         if (evts[i].event == CONSOLE_RENDERER_NONE_EVENT ||
 240             evts[i].event == CONSOLE_RENDERER_CURSOR_POS_EVENT ||
 241             evts[i].event == CONSOLE_RENDERER_CURSOR_GEOM_EVENT) continue;
 242         if (evts[i].event != CONSOLE_RENDERER_UPDATE_EVENT)
 243         {
 244             ev_found = -1;
 245             continue;
 246         }
 247
 248         if (ev_found != -1 &&  /* Only 2 cases where they can NOT merge */
 249             !(evts[i       ].u.update.bottom + 1 < evts[ev_found].u.update.top ||
 250               evts[ev_found].u.update.bottom + 1 < evts[i       ].u.update.top))
 251         {
 252             evts[i].u.update.top    = min(evts[i       ].u.update.top,
 253                                           evts[ev_found].u.update.top);
 254             evts[i].u.update.bottom = max(evts[i       ].u.update.bottom,
 255                                           evts[ev_found].u.update.bottom);
 256             evts[ev_found].event = CONSOLE_RENDERER_NONE_EVENT;
 257         }
 258         ev_found = i;
 259     }
 260
 261     WINE_TRACE("Events:");
 262     for (i = 0; i < num; i++)
 263     {
 264         switch (evts[i].event)
 265         {
 266         case CONSOLE_RENDERER_NONE_EVENT:
 267             WINE_TRACE(" NOP");
 268             break;
 269         case CONSOLE_RENDERER_TITLE_EVENT:
 270             WINE_TRACE(" title()");
 271             data->fnSetTitle(data);
 272             break;
 273         case CONSOLE_RENDERER_ACTIVE_SB_EVENT:
 274             SERVER_START_REQ( open_console )
 275             {
 276                 req->from    = (int)data->hConIn;
 277                 req->access  = GENERIC_READ | GENERIC_WRITE;
 278                 req->share   = FILE_SHARE_READ | FILE_SHARE_WRITE;
 279                 req->inherit = FALSE;
 280                 h = wine_server_call_err( req ) ? 0 : (HANDLE)reply->handle;
 281             }
 282             SERVER_END_REQ;
 283             WINE_TRACE(" active(%d)", (int)h);
 284             if (h)
 285             {
 286                 CloseHandle(data->hConOut);
 287                 data->hConOut = h;
 288             }
 289             break;
 290         case CONSOLE_RENDERER_SB_RESIZE_EVENT:
 291             if (data->curcfg.sb_width != evts[i].u.resize.width ||
 292                 data->curcfg.sb_height != evts[i].u.resize.height || !data->cells)
 293             {
 294                 WINE_TRACE(" resize(%d,%d)", evts[i].u.resize.width, evts[i].u.resize.height);
 295                 data->curcfg.sb_width  = evts[i].u.resize.width;
 296                 data->curcfg.sb_height = evts[i].u.resize.height;
 297
 298                 if (data->cells)
 299                     data->cells = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, data->cells,
 300                                           data->curcfg.sb_width * data->curcfg.sb_height * sizeof(CHAR_INFO));
 301                 else
 302                     data->cells = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 303                                           data->curcfg.sb_width * data->curcfg.sb_height * sizeof(CHAR_INFO));
 304
 305                 if (!data->cells) WINECON_Fatal("OOM\n");
 306                 data->fnResizeScreenBuffer(data);
 307                 data->fnComputePositions(data);
 308             }
 309             break;
 310         case CONSOLE_RENDERER_UPDATE_EVENT:
 311             WINE_TRACE(" update(%d,%d)", evts[i].u.update.top, evts[i].u.update.bottom);
 312             WINECON_FetchCells(data, evts[i].u.update.top, evts[i].u.update.bottom);
 313             break;
 314         case CONSOLE_RENDERER_CURSOR_POS_EVENT:
 315             if (evts[i].u.cursor_pos.x != data->cursor.X || evts[i].u.cursor_pos.y != data->cursor.Y)
 316             {
 317                 WINE_TRACE(" curs-pos(%d,%d)",evts[i].u.cursor_pos.x, evts[i].u.cursor_pos.y);
 318                 data->cursor.X = evts[i].u.cursor_pos.x;
 319                 data->cursor.Y = evts[i].u.cursor_pos.y;
 320                 data->fnPosCursor(data);
 321             }
 322             break;
 323         case CONSOLE_RENDERER_CURSOR_GEOM_EVENT:
 324             if (evts[i].u.cursor_geom.size != data->curcfg.cursor_size ||
 325                 evts[i].u.cursor_geom.visible != data->curcfg.cursor_visible)
 326             {
 327                 WINE_TRACE(" curs-geom(%d,%d)",
 328                            evts[i].u.cursor_geom.size, evts[i].u.cursor_geom.visible);
 329                 data->fnShapeCursor(data, evts[i].u.cursor_geom.size,
 330                                     evts[i].u.cursor_geom.visible, FALSE);
 331             }
 332             break;
 333         case CONSOLE_RENDERER_DISPLAY_EVENT:
 334             if (evts[i].u.display.left != data->curcfg.win_pos.X)
 335             {
 336                 WINE_TRACE(" h-scroll(%d)", evts[i].u.display.left);
 337                 data->fnScroll(data, evts[i].u.display.left, TRUE);
 338                 data->fnPosCursor(data);
 339             }
 340             if (evts[i].u.display.top != data->curcfg.win_pos.Y)
 341             {
 342                 WINE_TRACE(" v-scroll(%d)", evts[i].u.display.top);
 343                 data->fnScroll(data, evts[i].u.display.top, FALSE);
 344                 data->fnPosCursor(data);
 345             }
 346             if (evts[i].u.display.width != data->curcfg.win_width ||
 347                 evts[i].u.display.height != data->curcfg.win_height)
 348             {
 349                 WINE_TRACE(" win-size(%d,%d)", evts[i].u.display.width, evts[i].u.display.height);
 350                 data->curcfg.win_width = evts[i].u.display.width;
 351                 data->curcfg.win_height = evts[i].u.display.height;
 352                 data->fnComputePositions(data);
 353             }
 354             break;
 355         case CONSOLE_RENDERER_EXIT_EVENT:
 356             WINE_TRACE(". Exit!!\n");
 357             return 0;
 358         default:
 359             WINE_FIXME("Unknown event type (%d)\n", evts[i].event);
 360         }
 361     }
 362
 363     WINE_TRACE(".\n");
 364     return 1;
 365 }
 366
 367 /******************************************************************
 368  *              WINECON_SetConfig
 369  *
 370  * Apply to data all the configuration elements from cfg. This includes modification
 371  * of server side equivalent and visual parts.
 372  * If force is FALSE, only the changed items are modified.
 373  */
 374 void     WINECON_SetConfig(struct inner_data* data,
 375                            const struct config_data* cfg, BOOL force)
 376 {
 377     if (force || data->curcfg.cursor_size != cfg->cursor_size ||
 378         data->curcfg.cursor_visible != cfg->cursor_visible)
 379     {
 380         CONSOLE_CURSOR_INFO cinfo;
 381         cinfo.dwSize = cfg->cursor_size;
 382         /* <FIXME>: this hack is needed to pass thru the invariant test operation on server side
 383          * (no notification is sent when invariant operation is requested
 384          */
 385         cinfo.bVisible = !cfg->cursor_visible;
 386         SetConsoleCursorInfo(data->hConOut, &cinfo);
 387         /* </FIXME> */
 388         cinfo.bVisible = cfg->cursor_visible;
 389         /* this shall update (through notif) curcfg */
 390         SetConsoleCursorInfo(data->hConOut, &cinfo);
 391     }
 392     if (force || data->curcfg.history_size != cfg->history_size)
 393     {
 394         data->curcfg.history_size = cfg->history_size;
 395         WINECON_SetHistorySize(data->hConIn, cfg->history_size);
 396     }
 397     if (force || data->curcfg.history_nodup != cfg->history_nodup)
 398     {
 399         data->curcfg.history_nodup = cfg->history_nodup;
 400         WINECON_SetHistoryMode(data->hConIn, cfg->history_nodup);
 401     }
 402     data->curcfg.menu_mask = cfg->menu_mask;
 403     data->curcfg.quick_edit = cfg->quick_edit;
 404     if (force || 1 /* FIXME: font info has changed */)
 405     {
 406         data->fnSetFont(data, cfg->face_name, cfg->cell_height, cfg->font_weight);
 407     }
 408     if (force || data->curcfg.def_attr != cfg->def_attr)
 409     {
 410         data->curcfg.def_attr = cfg->def_attr;
 411         SetConsoleTextAttribute(data->hConOut, cfg->def_attr);
 412     }
 413     /* now let's look at the window / sb size changes...
 414      * since the server checks that sb is always bigger than window,
 415      * we have to take care of doing the operations in the right order
 416      */
 417     /* a set of macros to make things easier to read
 418      * The Test<A><B> macros test if the <A> (width/height) needs to be changed
 419      * for <B> (window / ScreenBuffer)
 420      * The Change<A><B> actually modify the <B> dimension of <A>.
 421      */
 422 #define TstSBfWidth()   (force || data->curcfg.sb_width != cfg->sb_width)
 423 #define TstWinWidth()   (force || data->curcfg.win_width != cfg->win_width)
 424
 425 #define ChgSBfWidth()   do {c.X = cfg->sb_width; \
 426                             c.Y = data->curcfg.sb_height;\
 427                             SetConsoleScreenBufferSize(data->hConOut, c);\
 428                         } while (0)
 429 #define ChgWinWidth()   do {pos.Left = pos.Top = 0; \
 430                             pos.Right = cfg->win_width - 1; \
 431                             pos.Bottom = data->curcfg.win_height - 1; \
 432                             SetConsoleWindowInfo(data->hConOut, FALSE, &pos);\
 433                         } while (0)
 434 #define TstSBfHeight()  (force || data->curcfg.sb_height != cfg->sb_height)
 435 #define TstWinHeight()  (force || data->curcfg.win_height != cfg->win_height)
 436
 437 /* since we're going to apply height after width is done, we use width as defined
 438  * in cfg, and not in data->curcfg because if won't be updated yet */
 439 #define ChgSBfHeight()  do {c.X = cfg->sb_width; c.Y = cfg->sb_height; \
 440                             SetConsoleScreenBufferSize(data->hConOut, c); \
 441                         } while (0)
 442 #define ChgWinHeight()  do {pos.Left = pos.Top = 0; \
 443                             pos.Right = cfg->win_width - 1; \
 444                             pos.Bottom = cfg->win_height - 1; \
 445                             SetConsoleWindowInfo(data->hConOut, FALSE, &pos);\
 446                         } while (0)
 447
 448     do
 449     {
 450         COORD       c;
 451         SMALL_RECT  pos;
 452
 453         if (TstSBfWidth())
 454         {
 455             if (TstWinWidth())
 456             {
 457                 /* we're changing both at the same time, do it in the right order */
 458                 if (cfg->sb_width >= data->curcfg.win_width)
 459                 {
 460                     ChgSBfWidth(); ChgWinWidth();
 461                 }
 462                 else
 463                 {
 464                     ChgWinWidth(); ChgSBfWidth();
 465                 }
 466             }
 467             else ChgSBfWidth();
 468         }
 469         else if (TstWinWidth()) ChgWinWidth();
 470         if (TstSBfHeight())
 471         {
 472             if (TstWinHeight())
 473             {
 474                 if (cfg->sb_height >= data->curcfg.win_height)
 475                 {
 476                     ChgSBfHeight(); ChgWinHeight();
 477                 }
 478                 else
 479                 {
 480                     ChgWinHeight(); ChgSBfHeight();
 481                 }
 482             }
 483             else ChgSBfHeight();
 484         }
 485         else if (TstWinHeight()) ChgWinHeight();
 486     } while (0);
 487 #undef TstSBfWidth
 488 #undef TstWinWidth
 489 #undef ChgSBfWidth
 490 #undef ChgWinWidth
 491 #undef TstSBfHeight
 492 #undef TstWinHeight
 493 #undef ChgSBfHeight
 494 #undef ChgWinHeight
 495
 496     data->curcfg.exit_on_die = cfg->exit_on_die;
 497     if (force || data->curcfg.edition_mode != cfg->edition_mode)
 498     {
 499         data->curcfg.edition_mode = cfg->edition_mode;
 500         WINECON_SetEditionMode(data->hConIn, cfg->edition_mode);
 501     }
 502     /* we now need to gather all events we got from the operations above,
 503      * in order to get data correctly updated
 504      */
 505     WINECON_GrabChanges(data);
 506 }
 507
 508 /******************************************************************
 509  *              WINECON_Delete
 510  *
 511  * Destroy wineconsole internal data
 512  */
 513 static void WINECON_Delete(struct inner_data* data)
 514 {
 515     if (!data) return;
 516
 517     if (data->fnDeleteBackend)  data->fnDeleteBackend(data);
 518     if (data->hConIn)           CloseHandle(data->hConIn);
 519     if (data->hConOut)          CloseHandle(data->hConOut);
 520     if (data->hSynchro)         CloseHandle(data->hSynchro);
 521     if (data->cells)            HeapFree(GetProcessHeap(), 0, data->cells);
 522     HeapFree(GetProcessHeap(), 0, data);
 523 }
 524
 525 /******************************************************************
 526  *              WINECON_Init
 527  *
 528  * Initialisation part I. Creation of server object (console input and
 529  * active screen buffer)
 530  */
 531 static struct inner_data* WINECON_Init(HINSTANCE hInst, DWORD pid, LPCWSTR appname,
 532                                        enum init_return (*backend)(struct inner_data*))
 533 {
 534     struct inner_data*  data = NULL;
 535     DWORD               ret;
 536     struct config_data  cfg;
 537     STARTUPINFOW        si;
 538
 539     data = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*data));
 540     if (!data) return 0;
 541
 542     GetStartupInfo(&si);
 543
 544     if (pid == 0)
 545     {
 546         if (!si.lpTitle) WINECON_Fatal("Should have a title set");
 547         appname = si.lpTitle;
 548     }
 549
 550     /* load settings */
 551     WINECON_RegLoad(appname, &cfg);
 552
 553     /* some overrides */
 554     if (pid == 0)
 555     {
 556         if (si.dwFlags & STARTF_USECOUNTCHARS)
 557         {
 558             cfg.sb_width  = si.dwXCountChars;
 559             cfg.sb_height = si.dwYCountChars;
 560         }
 561         if (si.dwFlags & STARTF_USEFILLATTRIBUTE)
 562             cfg.def_attr = si.dwFillAttribute;
 563         /* should always be defined */
 564     }
 565
 566     /* the handles here are created without the whistles and bells required by console
 567      * (mainly because wineconsole doesn't need it)
 568      * - they are not inheritable
 569      * - hConIn is not synchronizable
 570      */
 571     SERVER_START_REQ(alloc_console)
 572     {
 573         req->access     = GENERIC_READ | GENERIC_WRITE;
 574         req->inherit    = FALSE;
 575         req->pid        = pid;
 576
 577         ret = !wine_server_call_err( req );
 578         data->hConIn = (HANDLE)reply->handle_in;
 579         data->hSynchro = (HANDLE)reply->event;
 580     }
 581     SERVER_END_REQ;
 582     if (!ret) goto error;
 583     WINE_TRACE("using hConIn %p, hSynchro event %p\n", data->hConIn, data->hSynchro);
 584
 585     SERVER_START_REQ( set_console_input_info )
 586     {
 587         req->handle = (obj_handle_t)data->hConIn;
 588         req->mask = SET_CONSOLE_INPUT_INFO_TITLE;
 589         wine_server_add_data( req, appname, lstrlenW(appname) * sizeof(WCHAR) );
 590         ret = !wine_server_call_err( req );
 591     }
 592     SERVER_END_REQ;
 593     if (!ret) goto error;
 594
 595     SERVER_START_REQ(create_console_output)
 596     {
 597         req->handle_in = (obj_handle_t)data->hConIn;
 598         req->access    = GENERIC_WRITE|GENERIC_READ;
 599         req->share     = FILE_SHARE_READ|FILE_SHARE_WRITE;
 600         req->inherit   = FALSE;
 601         ret = !wine_server_call_err( req );
 602         data->hConOut  = (HANDLE)reply->handle_out;
 603     }
 604     SERVER_END_REQ;
 605     if (!ret) goto error;
 606     WINE_TRACE("using hConOut %p\n", data->hConOut);
 607
 608     /* filling data->curcfg from cfg */
 609  retry:
 610     switch ((*backend)(data))
 611     {
 612     case init_success:
 613         WINECON_SetConfig(data, &cfg, TRUE);
 614         data->curcfg.registry = cfg.registry;
 615         WINECON_DumpConfig("fint", &data->curcfg);
 616         return data;
 617     case init_failed:
 618         break;
 619     case init_not_supported:
 620         if (backend == WCCURSES_InitBackend)
 621         {
 622             WINE_ERR("(n)curses was not found at configuration time.\n"
 623                      "If you want (n)curses support, please install relevant packages.\n"
 624                      "Now forcing user backend instead of (n)curses.\n");
 625             backend = WCUSER_InitBackend;
 626             goto retry;
 627         }
 628         break;
 629     }
 630
 631  error:
 632     WINE_ERR("failed to init.\n");
 633
 634     WINECON_Delete(data);
 635     return NULL;
 636 }
 637
 638 /******************************************************************
 639  *              WINECON_Spawn
 640  *
 641  * Spawn the child process when invoked with wineconsole foo bar
 642  */
 643 static BOOL WINECON_Spawn(struct inner_data* data, LPWSTR cmdLine)
 644 {
 645     PROCESS_INFORMATION info;
 646     STARTUPINFO         startup;
 647     BOOL                done;
 648
 649     /* we're in the case wineconsole <exe> <options>... spawn the new process */
 650     memset(&startup, 0, sizeof(startup));
 651     startup.cb          = sizeof(startup);
 652     startup.dwFlags     = STARTF_USESTDHANDLES;
 653
 654     /* the attributes of wineconsole's handles are not adequate for inheritance, so
 655      * get them with the correct attributes before process creation
 656      */
 657     if (!DuplicateHandle(GetCurrentProcess(), data->hConIn,  GetCurrentProcess(),
 658                          &startup.hStdInput, GENERIC_READ|GENERIC_WRITE|SYNCHRONIZE, TRUE, 0) ||
 659         !DuplicateHandle(GetCurrentProcess(), data->hConOut, GetCurrentProcess(),
 660                          &startup.hStdOutput, GENERIC_READ|GENERIC_WRITE, TRUE, 0) ||
 661         !DuplicateHandle(GetCurrentProcess(), data->hConOut, GetCurrentProcess(),
 662                          &startup.hStdError, GENERIC_READ|GENERIC_WRITE, TRUE, 0))
 663     {
 664         WINE_ERR("Can't dup handles\n");
 665         /* no need to delete handles, we're exiting the programm anyway */
 666         return FALSE;
 667     }
 668
 669     done = CreateProcess(NULL, cmdLine, NULL, NULL, TRUE, 0L, NULL, NULL, &startup, &info);
 670
 671     /* we no longer need the handles passed to the child for the console */
 672     CloseHandle(startup.hStdInput);
 673     CloseHandle(startup.hStdOutput);
 674     CloseHandle(startup.hStdError);
 675
 676     CloseHandle(info.hProcess);
 677     CloseHandle(info.hThread);
 678
 679     return done;
 680 }
 681
 682 struct wc_init {
 683     LPCSTR              ptr;
 684     enum {from_event, from_process_name} mode;
 685     enum init_return    (*backend)(struct inner_data*);
 686     HANDLE              event;
 687 };
 688
 689 /******************************************************************
 690  *               WINECON_ParseOptions
 691  *
 692  *
 693  */
 694 static BOOL WINECON_ParseOptions(const char* lpCmdLine, struct wc_init* wci)
 695 {
 696     memset(wci, 0, sizeof(*wci));
 697     wci->ptr = lpCmdLine;
 698     wci->mode = from_process_name;
 699     wci->backend = WCCURSES_InitBackend;
 700
 701     for (;;)
 702     {
 703         while (*wci->ptr == ' ' || *wci->ptr == '\t') wci->ptr++;
 704         if (wci->ptr[0] != '-') break;
 705         if (strncmp(wci->ptr, "--use-event=", 12) == 0)
 706         {
 707             char*           end;
 708             wci->event = (HANDLE)strtol(wci->ptr + 12, &end, 10);
 709             if (end == wci->ptr + 12) return FALSE;
 710             wci->mode = from_event;
 711             wci->ptr = end;
 712             wci->backend = WCUSER_InitBackend;
 713         }
 714         else if (strncmp(wci->ptr, "--backend=", 10) == 0)
 715         {
 716             if (strncmp(wci->ptr + 10, "user", 4) == 0)
 717             {
 718                 wci->backend = WCUSER_InitBackend;
 719                 wci->ptr += 14;
 720             }
 721             else if (strncmp(wci->ptr + 10, "curses", 6) == 0)
 722             {
 723                 wci->ptr += 16;
 724             }
 725             else
 726                 return FALSE;
 727         }
 728         else
 729             return FALSE;
 730     }
 731
 732     return TRUE;
 733 }
 734
 735 /******************************************************************
 736  *              WinMain
 737  *
 738  * wineconsole can either be started as:
 739  *      wineconsole --use-event=<int>   used when a new console is created (AllocConsole)
 740  *      wineconsole <pgm> <arguments>   used to start the program <pgm> from the command line in
 741  *                                      a freshly created console
 742  * --backend=(curses|user) can also be used to select the desired backend
 743  */
 744 int PASCAL WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR lpCmdLine, INT nCmdShow)
 745 {
 746     struct inner_data*  data;
 747     int                 ret = 1;
 748     struct wc_init      wci;
 749
 750     if (!WINECON_ParseOptions(lpCmdLine, &wci))
 751     {
 752         WINE_ERR("Wrong command line options\n");
 753         return 0;
 754     }
 755
 756     switch (wci.mode)
 757     {
 758     case from_event:
 759         /* case of wineconsole <evt>, signal process that created us that we're up and running */
 760         if (!(data = WINECON_Init(hInst, 0, NULL, wci.backend))) return 0;
 761         ret = SetEvent(wci.event);
 762         if (!ret) WINE_ERR("SetEvent failed.\n");
 763         break;
 764     case from_process_name:
 765         {
 766             WCHAR           buffer[256];
 767
 768             MultiByteToWideChar(CP_ACP, 0, wci.ptr, -1, buffer, sizeof(buffer) / sizeof(buffer[0]));
 769
 770             if (!(data = WINECON_Init(hInst, GetCurrentProcessId(), buffer, wci.backend)))
 771                 return 0;
 772             ret = WINECON_Spawn(data, buffer);
 773             if (!ret)
 774                 WINE_MESSAGE("wineconsole: spawning client program failed (%s), invalid/missing command line arguments ?\n", wine_dbgstr_w(buffer));
 775         }
 776         break;
 777     default:
 778         return 0;
 779     }
 780
 781     if (ret)
 782     {
 783         WINE_TRACE("calling MainLoop.\n");
 784         ret = data->fnMainLoop(data);
 785     }
 786
 787     WINECON_Delete(data);
 788
 789     return ret;
 790 }