2 * backend.c -- Common back end for X and Windows NT versions of
4 * Copyright 1991 by Digital Equipment Corporation, Maynard,
7 * Enhancements Copyright 1992-2001, 2002, 2003, 2004, 2005, 2006,
8 * 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 Free Software Foundation, Inc.
10 * Enhancements Copyright 2005 Alessandro Scotti
12 * The following terms apply to Digital Equipment Corporation's copyright
14 * ------------------------------------------------------------------------
17 * Permission to use, copy, modify, and distribute this software and its
18 * documentation for any purpose and without fee is hereby granted,
19 * provided that the above copyright notice appear in all copies and that
20 * both that copyright notice and this permission notice appear in
21 * supporting documentation, and that the name of Digital not be
22 * used in advertising or publicity pertaining to distribution of the
23 * software without specific, written prior permission.
25 * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
26 * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
27 * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
28 * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
29 * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
30 * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
32 * ------------------------------------------------------------------------
34 * The following terms apply to the enhanced version of XBoard
35 * distributed by the Free Software Foundation:
36 * ------------------------------------------------------------------------
38 * GNU XBoard is free software: you can redistribute it and/or modify
39 * it under the terms of the GNU General Public License as published by
40 * the Free Software Foundation, either version 3 of the License, or (at
41 * your option) any later version.
43 * GNU XBoard is distributed in the hope that it will be useful, but
44 * WITHOUT ANY WARRANTY; without even the implied warranty of
45 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
46 * General Public License for more details.
48 * You should have received a copy of the GNU General Public License
49 * along with this program. If not, see http://www.gnu.org/licenses/. *
51 *------------------------------------------------------------------------
52 ** See the file ChangeLog for a revision history. */
54 /* [AS] Also useful here for debugging */
58 int flock(int f, int code);
63 # define EGBB_NAME "egbbdll64.dll"
65 # define EGBB_NAME "egbbdll.dll"
70 # include <sys/file.h>
75 # define EGBB_NAME "egbbso64.so"
77 # define EGBB_NAME "egbbso.so"
79 // kludge to allow Windows code in back-end by converting it to corresponding Linux code
81 # define HMODULE void *
82 # define LoadLibrary(x) dlopen(x, RTLD_LAZY)
83 # define GetProcAddress dlsym
93 #include <sys/types.h>
102 #else /* not STDC_HEADERS */
105 # else /* not HAVE_STRING_H */
106 # include <strings.h>
107 # endif /* not HAVE_STRING_H */
108 #endif /* not STDC_HEADERS */
111 # include <sys/fcntl.h>
112 #else /* not HAVE_SYS_FCNTL_H */
115 # endif /* HAVE_FCNTL_H */
116 #endif /* not HAVE_SYS_FCNTL_H */
118 #if TIME_WITH_SYS_TIME
119 # include <sys/time.h>
123 # include <sys/time.h>
129 #if defined(_amigados) && !defined(__GNUC__)
134 extern int gettimeofday(struct timeval *, struct timezone *);
142 #include "frontend.h"
149 #include "backendz.h"
150 #include "evalgraph.h"
151 #include "engineoutput.h"
155 # define _(s) gettext (s)
156 # define N_(s) gettext_noop (s)
157 # define T_(s) gettext(s)
170 int establish P((void));
171 void read_from_player P((InputSourceRef isr, VOIDSTAR closure,
172 char *buf, int count, int error));
173 void read_from_ics P((InputSourceRef isr, VOIDSTAR closure,
174 char *buf, int count, int error));
175 void SendToICS P((char *s));
176 void SendToICSDelayed P((char *s, long msdelay));
177 void SendMoveToICS P((ChessMove moveType, int fromX, int fromY, int toX, int toY, char promoChar));
178 void HandleMachineMove P((char *message, ChessProgramState *cps));
179 int AutoPlayOneMove P((void));
180 int LoadGameOneMove P((ChessMove readAhead));
181 int LoadGameFromFile P((char *filename, int n, char *title, int useList));
182 int LoadPositionFromFile P((char *filename, int n, char *title));
183 int SavePositionToFile P((char *filename));
184 void MakeMove P((int fromX, int fromY, int toX, int toY, int promoChar));
185 void ShowMove P((int fromX, int fromY, int toX, int toY));
186 int FinishMove P((ChessMove moveType, int fromX, int fromY, int toX, int toY,
187 /*char*/int promoChar));
188 void BackwardInner P((int target));
189 void ForwardInner P((int target));
190 int Adjudicate P((ChessProgramState *cps));
191 void GameEnds P((ChessMove result, char *resultDetails, int whosays));
192 void EditPositionDone P((Boolean fakeRights));
193 void PrintOpponents P((FILE *fp));
194 void PrintPosition P((FILE *fp, int move));
195 void StartChessProgram P((ChessProgramState *cps));
196 void SendToProgram P((char *message, ChessProgramState *cps));
197 void SendMoveToProgram P((int moveNum, ChessProgramState *cps));
198 void ReceiveFromProgram P((InputSourceRef isr, VOIDSTAR closure,
199 char *buf, int count, int error));
200 void SendTimeControl P((ChessProgramState *cps,
201 int mps, long tc, int inc, int sd, int st));
202 char *TimeControlTagValue P((void));
203 void Attention P((ChessProgramState *cps));
204 void FeedMovesToProgram P((ChessProgramState *cps, int upto));
205 int ResurrectChessProgram P((void));
206 void DisplayComment P((int moveNumber, char *text));
207 void DisplayMove P((int moveNumber));
209 void ParseGameHistory P((char *game));
210 void ParseBoard12 P((char *string));
211 void KeepAlive P((void));
212 void StartClocks P((void));
213 void SwitchClocks P((int nr));
214 void StopClocks P((void));
215 void ResetClocks P((void));
216 char *PGNDate P((void));
217 void SetGameInfo P((void));
218 int RegisterMove P((void));
219 void MakeRegisteredMove P((void));
220 void TruncateGame P((void));
221 int looking_at P((char *, int *, char *));
222 void CopyPlayerNameIntoFileName P((char **, char *));
223 char *SavePart P((char *));
224 int SaveGameOldStyle P((FILE *));
225 int SaveGamePGN P((FILE *));
226 int CheckFlags P((void));
227 long NextTickLength P((long));
228 void CheckTimeControl P((void));
229 void show_bytes P((FILE *, char *, int));
230 int string_to_rating P((char *str));
231 void ParseFeatures P((char* args, ChessProgramState *cps));
232 void InitBackEnd3 P((void));
233 void FeatureDone P((ChessProgramState* cps, int val));
234 void InitChessProgram P((ChessProgramState *cps, int setup));
235 void OutputKibitz(int window, char *text);
236 int PerpetualChase(int first, int last);
237 int EngineOutputIsUp();
238 void InitDrawingSizes(int x, int y);
239 void NextMatchGame P((void));
240 int NextTourneyGame P((int nr, int *swap));
241 int Pairing P((int nr, int nPlayers, int *w, int *b, int *sync));
242 FILE *WriteTourneyFile P((char *results, FILE *f));
243 void DisplayTwoMachinesTitle P(());
244 static void ExcludeClick P((int index));
245 void ToggleSecond P((void));
246 void PauseEngine P((ChessProgramState *cps));
247 static int NonStandardBoardSize P((VariantClass v, int w, int h, int s));
250 extern void ConsoleCreate();
253 ChessProgramState *WhitePlayer();
254 int VerifyDisplayMode P(());
256 char *GetInfoFromComment( int, char * ); // [HGM] PV time: returns stripped comment
257 void InitEngineUCI( const char * iniDir, ChessProgramState * cps ); // [HGM] moved here from winboard.c
258 char *ProbeBook P((int moveNr, char *book)); // [HGM] book: returns a book move
259 char *SendMoveToBookUser P((int nr, ChessProgramState *cps, int initial)); // [HGM] book
260 void ics_update_width P((int new_width));
261 extern char installDir[MSG_SIZ];
262 VariantClass startVariant; /* [HGM] nicks: initial variant */
265 extern int tinyLayout, smallLayout;
266 ChessProgramStats programStats;
267 char lastPV[2][2*MSG_SIZ]; /* [HGM] pv: last PV in thinking output of each engine */
269 static int exiting = 0; /* [HGM] moved to top */
270 static int setboardSpoiledMachineBlack = 0 /*, errorExitFlag = 0*/;
271 int startedFromPositionFile = FALSE; Board filePosition; /* [HGM] loadPos */
272 Board partnerBoard; /* [HGM] bughouse: for peeking at partner game */
273 int partnerHighlight[2];
274 Boolean partnerBoardValid = 0;
275 char partnerStatus[MSG_SIZ];
277 Boolean originalFlip;
278 Boolean twoBoards = 0;
279 char endingGame = 0; /* [HGM] crash: flag to prevent recursion of GameEnds() */
280 int whiteNPS, blackNPS; /* [HGM] nps: for easily making clocks aware of NPS */
281 VariantClass currentlyInitializedVariant; /* [HGM] variantswitch */
282 int lastIndex = 0; /* [HGM] autoinc: last game/position used in match mode */
283 Boolean connectionAlive;/* [HGM] alive: ICS connection status from probing */
284 int opponentKibitzes;
285 int lastSavedGame; /* [HGM] save: ID of game */
286 char chatPartner[MAX_CHAT][MSG_SIZ]; /* [HGM] chat: list of chatting partners */
287 extern int chatCount;
289 char marker[BOARD_RANKS][BOARD_FILES]; /* [HGM] marks for target squares */
290 char legal[BOARD_RANKS][BOARD_FILES]; /* [HGM] legal target squares */
291 char lastMsg[MSG_SIZ];
292 char lastTalker[MSG_SIZ];
293 ChessSquare pieceSweep = EmptySquare;
294 ChessSquare promoSweep = EmptySquare, defaultPromoChoice;
295 int promoDefaultAltered;
296 int keepInfo = 0; /* [HGM] to protect PGN tags in auto-step game analysis */
297 static int initPing = -1;
298 int border; /* [HGM] width of board rim, needed to size seek graph */
300 /* States for ics_getting_history */
302 #define H_REQUESTED 1
303 #define H_GOT_REQ_HEADER 2
304 #define H_GOT_UNREQ_HEADER 3
305 #define H_GETTING_MOVES 4
306 #define H_GOT_UNWANTED_HEADER 5
308 /* whosays values for GameEnds */
317 /* Maximum number of games in a cmail message */
318 #define CMAIL_MAX_GAMES 20
320 /* Different types of move when calling RegisterMove */
322 #define CMAIL_RESIGN 1
324 #define CMAIL_ACCEPT 3
326 /* Different types of result to remember for each game */
327 #define CMAIL_NOT_RESULT 0
328 #define CMAIL_OLD_RESULT 1
329 #define CMAIL_NEW_RESULT 2
331 /* Telnet protocol constants */
342 safeStrCpy (char *dst, const char *src, size_t count)
345 assert( dst != NULL );
346 assert( src != NULL );
349 for(i=0; i<count; i++) if((dst[i] = src[i]) == NULLCHAR) break;
350 if( i == count && dst[count-1] != NULLCHAR)
352 dst[ count-1 ] = '\0'; // make sure incomplete copy still null-terminated
353 if(appData.debugMode)
354 fprintf(debugFP, "safeStrCpy: copying %s into %s didn't work, not enough space %d\n",src,dst, (int)count);
360 /* Some compiler can't cast u64 to double
361 * This function do the job for us:
363 * We use the highest bit for cast, this only
364 * works if the highest bit is not
365 * in use (This should not happen)
367 * We used this for all compiler
370 u64ToDouble (u64 value)
373 u64 tmp = value & u64Const(0x7fffffffffffffff);
374 r = (double)(s64)tmp;
375 if (value & u64Const(0x8000000000000000))
376 r += 9.2233720368547758080e18; /* 2^63 */
380 /* Fake up flags for now, as we aren't keeping track of castling
381 availability yet. [HGM] Change of logic: the flag now only
382 indicates the type of castlings allowed by the rule of the game.
383 The actual rights themselves are maintained in the array
384 castlingRights, as part of the game history, and are not probed
390 int flags = F_ALL_CASTLE_OK;
391 if ((index % 2) == 0) flags |= F_WHITE_ON_MOVE;
392 switch (gameInfo.variant) {
394 flags &= ~F_ALL_CASTLE_OK;
395 case VariantGiveaway: // [HGM] moved this case label one down: seems Giveaway does have castling on ICC!
396 flags |= F_IGNORE_CHECK;
398 flags |= F_MANDATORY_CAPTURE; //[HGM] losers: sets flag so TestLegality rejects non-capts if capts exist
401 flags |= F_IGNORE_CHECK | F_ATOMIC_CAPTURE;
403 case VariantKriegspiel:
404 flags |= F_KRIEGSPIEL_CAPTURE;
406 case VariantCapaRandom:
407 case VariantFischeRandom:
408 flags |= F_FRC_TYPE_CASTLING; /* [HGM] enable this through flag */
409 case VariantNoCastle:
410 case VariantShatranj:
415 flags &= ~F_ALL_CASTLE_OK;
418 case VariantChuChess:
420 flags |= F_NULL_MOVE;
425 if(appData.fischerCastling) flags |= F_FRC_TYPE_CASTLING, flags &= ~F_ALL_CASTLE_OK; // [HGM] fischer
429 FILE *gameFileFP, *debugFP, *serverFP;
430 char *currentDebugFile; // [HGM] debug split: to remember name
433 [AS] Note: sometimes, the sscanf() function is used to parse the input
434 into a fixed-size buffer. Because of this, we must be prepared to
435 receive strings as long as the size of the input buffer, which is currently
436 set to 4K for Windows and 8K for the rest.
437 So, we must either allocate sufficiently large buffers here, or
438 reduce the size of the input buffer in the input reading part.
441 char cmailMove[CMAIL_MAX_GAMES][MOVE_LEN], cmailMsg[MSG_SIZ];
442 char bookOutput[MSG_SIZ*10], thinkOutput[MSG_SIZ*10], lastHint[MSG_SIZ];
443 char thinkOutput1[MSG_SIZ*10];
445 ChessProgramState first, second, pairing;
447 /* premove variables */
450 int premoveFromX = 0;
451 int premoveFromY = 0;
452 int premovePromoChar = 0;
454 Boolean alarmSounded;
455 /* end premove variables */
457 char *ics_prefix = "$";
458 enum ICS_TYPE ics_type = ICS_GENERIC;
460 int currentMove = 0, forwardMostMove = 0, backwardMostMove = 0;
461 int pauseExamForwardMostMove = 0;
462 int nCmailGames = 0, nCmailResults = 0, nCmailMovesRegistered = 0;
463 int cmailMoveRegistered[CMAIL_MAX_GAMES], cmailResult[CMAIL_MAX_GAMES];
464 int cmailMsgLoaded = FALSE, cmailMailedMove = FALSE;
465 int cmailOldMove = -1, firstMove = TRUE, flipView = FALSE;
466 int blackPlaysFirst = FALSE, startedFromSetupPosition = FALSE;
467 int searchTime = 0, pausing = FALSE, pauseExamInvalid = FALSE;
468 int whiteFlag = FALSE, blackFlag = FALSE;
469 int userOfferedDraw = FALSE;
470 int ics_user_moved = 0, ics_gamenum = -1, ics_getting_history = H_FALSE;
471 int matchMode = FALSE, hintRequested = FALSE, bookRequested = FALSE;
472 int cmailMoveType[CMAIL_MAX_GAMES];
473 long ics_clock_paused = 0;
474 ProcRef icsPR = NoProc, cmailPR = NoProc;
475 InputSourceRef telnetISR = NULL, fromUserISR = NULL, cmailISR = NULL;
476 GameMode gameMode = BeginningOfGame;
477 char moveList[MAX_MOVES][MOVE_LEN], parseList[MAX_MOVES][MOVE_LEN * 2];
478 char *commentList[MAX_MOVES], *cmailCommentList[CMAIL_MAX_GAMES];
479 ChessProgramStats_Move pvInfoList[MAX_MOVES]; /* [AS] Info about engine thinking */
480 int hiddenThinkOutputState = 0; /* [AS] */
481 int adjudicateLossThreshold = 0; /* [AS] Automatic adjudication */
482 int adjudicateLossPlies = 6;
483 char white_holding[64], black_holding[64];
484 TimeMark lastNodeCountTime;
485 long lastNodeCount=0;
486 int shiftKey, controlKey; // [HGM] set by mouse handler
488 int have_sent_ICS_logon = 0;
490 int suddenDeath, whiteStartMove, blackStartMove; /* [HGM] for implementation of 'any per time' sessions, as in first part of byoyomi TC */
491 long whiteTimeRemaining, blackTimeRemaining, timeControl, timeIncrement, lastWhite, lastBlack, activePartnerTime;
492 Boolean adjustedClock;
493 long timeControl_2; /* [AS] Allow separate time controls */
494 char *fullTimeControlString = NULL, *nextSession, *whiteTC, *blackTC, activePartner; /* [HGM] secondary TC: merge of MPS, TC and inc */
495 long timeRemaining[2][MAX_MOVES];
496 int matchGame = 0, nextGame = 0, roundNr = 0;
497 Boolean waitingForGame = FALSE, startingEngine = FALSE;
498 TimeMark programStartTime, pauseStart;
499 char ics_handle[MSG_SIZ];
500 int have_set_title = 0;
502 /* animateTraining preserves the state of appData.animate
503 * when Training mode is activated. This allows the
504 * response to be animated when appData.animate == TRUE and
505 * appData.animateDragging == TRUE.
507 Boolean animateTraining;
513 Board boards[MAX_MOVES];
514 /* [HGM] Following 7 needed for accurate legality tests: */
515 signed char castlingRank[BOARD_FILES]; // and corresponding ranks
516 signed char initialRights[BOARD_FILES];
517 int nrCastlingRights; // For TwoKings, or to implement castling-unknown status
518 int initialRulePlies, FENrulePlies;
519 FILE *serverMoves = NULL; // next two for broadcasting (/serverMoves option)
521 Boolean shuffleOpenings;
522 int mute; // mute all sounds
524 // [HGM] vari: next 12 to save and restore variations
525 #define MAX_VARIATIONS 10
526 int framePtr = MAX_MOVES-1; // points to free stack entry
528 int savedFirst[MAX_VARIATIONS];
529 int savedLast[MAX_VARIATIONS];
530 int savedFramePtr[MAX_VARIATIONS];
531 char *savedDetails[MAX_VARIATIONS];
532 ChessMove savedResult[MAX_VARIATIONS];
534 void PushTail P((int firstMove, int lastMove));
535 Boolean PopTail P((Boolean annotate));
536 void PushInner P((int firstMove, int lastMove));
537 void PopInner P((Boolean annotate));
538 void CleanupTail P((void));
540 ChessSquare FIDEArray[2][BOARD_FILES] = {
541 { WhiteRook, WhiteKnight, WhiteBishop, WhiteQueen,
542 WhiteKing, WhiteBishop, WhiteKnight, WhiteRook },
543 { BlackRook, BlackKnight, BlackBishop, BlackQueen,
544 BlackKing, BlackBishop, BlackKnight, BlackRook }
547 ChessSquare twoKingsArray[2][BOARD_FILES] = {
548 { WhiteRook, WhiteKnight, WhiteBishop, WhiteQueen,
549 WhiteKing, WhiteKing, WhiteKnight, WhiteRook },
550 { BlackRook, BlackKnight, BlackBishop, BlackQueen,
551 BlackKing, BlackKing, BlackKnight, BlackRook }
554 ChessSquare KnightmateArray[2][BOARD_FILES] = {
555 { WhiteRook, WhiteMan, WhiteBishop, WhiteQueen,
556 WhiteUnicorn, WhiteBishop, WhiteMan, WhiteRook },
557 { BlackRook, BlackMan, BlackBishop, BlackQueen,
558 BlackUnicorn, BlackBishop, BlackMan, BlackRook }
561 ChessSquare SpartanArray[2][BOARD_FILES] = {
562 { WhiteRook, WhiteKnight, WhiteBishop, WhiteQueen,
563 WhiteKing, WhiteBishop, WhiteKnight, WhiteRook },
564 { BlackAlfil, BlackMarshall, BlackKing, BlackDragon,
565 BlackDragon, BlackKing, BlackAngel, BlackAlfil }
568 ChessSquare fairyArray[2][BOARD_FILES] = { /* [HGM] Queen side differs from King side */
569 { WhiteRook, WhiteKnight, WhiteBishop, WhiteQueen,
570 WhiteKing, WhiteBishop, WhiteKnight, WhiteRook },
571 { BlackCardinal, BlackAlfil, BlackMarshall, BlackAngel,
572 BlackKing, BlackMarshall, BlackAlfil, BlackCardinal }
575 ChessSquare ShatranjArray[2][BOARD_FILES] = { /* [HGM] (movGen knows about Shatranj Q and P) */
576 { WhiteRook, WhiteKnight, WhiteAlfil, WhiteKing,
577 WhiteFerz, WhiteAlfil, WhiteKnight, WhiteRook },
578 { BlackRook, BlackKnight, BlackAlfil, BlackKing,
579 BlackFerz, BlackAlfil, BlackKnight, BlackRook }
582 ChessSquare makrukArray[2][BOARD_FILES] = { /* [HGM] (movGen knows about Shatranj Q and P) */
583 { WhiteRook, WhiteKnight, WhiteMan, WhiteKing,
584 WhiteFerz, WhiteMan, WhiteKnight, WhiteRook },
585 { BlackRook, BlackKnight, BlackMan, BlackFerz,
586 BlackKing, BlackMan, BlackKnight, BlackRook }
589 ChessSquare aseanArray[2][BOARD_FILES] = { /* [HGM] (movGen knows about Shatranj Q and P) */
590 { WhiteRook, WhiteKnight, WhiteMan, WhiteFerz,
591 WhiteKing, WhiteMan, WhiteKnight, WhiteRook },
592 { BlackRook, BlackKnight, BlackMan, BlackFerz,
593 BlackKing, BlackMan, BlackKnight, BlackRook }
596 ChessSquare lionArray[2][BOARD_FILES] = {
597 { WhiteRook, WhiteLion, WhiteBishop, WhiteQueen,
598 WhiteKing, WhiteBishop, WhiteKnight, WhiteRook },
599 { BlackRook, BlackLion, BlackBishop, BlackQueen,
600 BlackKing, BlackBishop, BlackKnight, BlackRook }
604 #if (BOARD_FILES>=10)
605 ChessSquare ShogiArray[2][BOARD_FILES] = {
606 { WhiteQueen, WhiteKnight, WhiteFerz, WhiteWazir,
607 WhiteKing, WhiteWazir, WhiteFerz, WhiteKnight, WhiteQueen },
608 { BlackQueen, BlackKnight, BlackFerz, BlackWazir,
609 BlackKing, BlackWazir, BlackFerz, BlackKnight, BlackQueen }
612 ChessSquare XiangqiArray[2][BOARD_FILES] = {
613 { WhiteRook, WhiteKnight, WhiteAlfil, WhiteFerz,
614 WhiteWazir, WhiteFerz, WhiteAlfil, WhiteKnight, WhiteRook },
615 { BlackRook, BlackKnight, BlackAlfil, BlackFerz,
616 BlackWazir, BlackFerz, BlackAlfil, BlackKnight, BlackRook }
619 ChessSquare CapablancaArray[2][BOARD_FILES] = {
620 { WhiteRook, WhiteKnight, WhiteAngel, WhiteBishop, WhiteQueen,
621 WhiteKing, WhiteBishop, WhiteMarshall, WhiteKnight, WhiteRook },
622 { BlackRook, BlackKnight, BlackAngel, BlackBishop, BlackQueen,
623 BlackKing, BlackBishop, BlackMarshall, BlackKnight, BlackRook }
626 ChessSquare GreatArray[2][BOARD_FILES] = {
627 { WhiteDragon, WhiteKnight, WhiteAlfil, WhiteGrasshopper, WhiteKing,
628 WhiteSilver, WhiteCardinal, WhiteAlfil, WhiteKnight, WhiteDragon },
629 { BlackDragon, BlackKnight, BlackAlfil, BlackGrasshopper, BlackKing,
630 BlackSilver, BlackCardinal, BlackAlfil, BlackKnight, BlackDragon },
633 ChessSquare JanusArray[2][BOARD_FILES] = {
634 { WhiteRook, WhiteAngel, WhiteKnight, WhiteBishop, WhiteKing,
635 WhiteQueen, WhiteBishop, WhiteKnight, WhiteAngel, WhiteRook },
636 { BlackRook, BlackAngel, BlackKnight, BlackBishop, BlackKing,
637 BlackQueen, BlackBishop, BlackKnight, BlackAngel, BlackRook }
640 ChessSquare GrandArray[2][BOARD_FILES] = {
641 { EmptySquare, WhiteKnight, WhiteBishop, WhiteQueen, WhiteKing,
642 WhiteMarshall, WhiteAngel, WhiteBishop, WhiteKnight, EmptySquare },
643 { EmptySquare, BlackKnight, BlackBishop, BlackQueen, BlackKing,
644 BlackMarshall, BlackAngel, BlackBishop, BlackKnight, EmptySquare }
647 ChessSquare ChuChessArray[2][BOARD_FILES] = {
648 { WhiteMan, WhiteKnight, WhiteBishop, WhiteCardinal, WhiteLion,
649 WhiteQueen, WhiteDragon, WhiteBishop, WhiteKnight, WhiteMan },
650 { BlackMan, BlackKnight, BlackBishop, BlackDragon, BlackQueen,
651 BlackLion, BlackCardinal, BlackBishop, BlackKnight, BlackMan }
655 ChessSquare GothicArray[2][BOARD_FILES] = {
656 { WhiteRook, WhiteKnight, WhiteBishop, WhiteQueen, WhiteMarshall,
657 WhiteKing, WhiteAngel, WhiteBishop, WhiteKnight, WhiteRook },
658 { BlackRook, BlackKnight, BlackBishop, BlackQueen, BlackMarshall,
659 BlackKing, BlackAngel, BlackBishop, BlackKnight, BlackRook }
662 #define GothicArray CapablancaArray
666 ChessSquare FalconArray[2][BOARD_FILES] = {
667 { WhiteRook, WhiteKnight, WhiteBishop, WhiteFalcon, WhiteQueen,
668 WhiteKing, WhiteFalcon, WhiteBishop, WhiteKnight, WhiteRook },
669 { BlackRook, BlackKnight, BlackBishop, BlackFalcon, BlackQueen,
670 BlackKing, BlackFalcon, BlackBishop, BlackKnight, BlackRook }
673 #define FalconArray CapablancaArray
676 #else // !(BOARD_FILES>=10)
677 #define XiangqiPosition FIDEArray
678 #define CapablancaArray FIDEArray
679 #define GothicArray FIDEArray
680 #define GreatArray FIDEArray
681 #endif // !(BOARD_FILES>=10)
683 #if (BOARD_FILES>=12)
684 ChessSquare CourierArray[2][BOARD_FILES] = {
685 { WhiteRook, WhiteKnight, WhiteAlfil, WhiteBishop, WhiteMan, WhiteKing,
686 WhiteFerz, WhiteWazir, WhiteBishop, WhiteAlfil, WhiteKnight, WhiteRook },
687 { BlackRook, BlackKnight, BlackAlfil, BlackBishop, BlackMan, BlackKing,
688 BlackFerz, BlackWazir, BlackBishop, BlackAlfil, BlackKnight, BlackRook }
690 ChessSquare ChuArray[6][BOARD_FILES] = {
691 { WhiteLance, WhiteUnicorn, WhiteMan, WhiteFerz, WhiteWazir, WhiteKing,
692 WhiteAlfil, WhiteWazir, WhiteFerz, WhiteMan, WhiteUnicorn, WhiteLance },
693 { BlackLance, BlackUnicorn, BlackMan, BlackFerz, BlackWazir, BlackAlfil,
694 BlackKing, BlackWazir, BlackFerz, BlackMan, BlackUnicorn, BlackLance },
695 { WhiteCannon, EmptySquare, WhiteBishop, EmptySquare, WhiteNightrider, WhiteMarshall,
696 WhiteAngel, WhiteNightrider, EmptySquare, WhiteBishop, EmptySquare, WhiteCannon },
697 { BlackCannon, EmptySquare, BlackBishop, EmptySquare, BlackNightrider, BlackAngel,
698 BlackMarshall, BlackNightrider, EmptySquare, BlackBishop, EmptySquare, BlackCannon },
699 { WhiteFalcon, WhiteSilver, WhiteRook, WhiteCardinal, WhiteDragon, WhiteLion,
700 WhiteQueen, WhiteDragon, WhiteCardinal, WhiteRook, WhiteSilver, WhiteFalcon },
701 { BlackFalcon, BlackSilver, BlackRook, BlackCardinal, BlackDragon, BlackQueen,
702 BlackLion, BlackDragon, BlackCardinal, BlackRook, BlackSilver, BlackFalcon }
704 #else // !(BOARD_FILES>=12)
705 #define CourierArray CapablancaArray
706 #define ChuArray CapablancaArray
707 #endif // !(BOARD_FILES>=12)
710 Board initialPosition;
713 /* Convert str to a rating. Checks for special cases of "----",
715 "++++", etc. Also strips ()'s */
717 string_to_rating (char *str)
719 while(*str && !isdigit(*str)) ++str;
721 return 0; /* One of the special "no rating" cases */
729 /* Init programStats */
730 programStats.movelist[0] = 0;
731 programStats.depth = 0;
732 programStats.nr_moves = 0;
733 programStats.moves_left = 0;
734 programStats.nodes = 0;
735 programStats.time = -1; // [HGM] PGNtime: make invalid to recognize engine output
736 programStats.score = 0;
737 programStats.got_only_move = 0;
738 programStats.got_fail = 0;
739 programStats.line_is_book = 0;
744 { // [HGM] moved some code here from InitBackend1 that has to be done after both engines have contributed their settings
745 if (appData.firstPlaysBlack) {
746 first.twoMachinesColor = "black\n";
747 second.twoMachinesColor = "white\n";
749 first.twoMachinesColor = "white\n";
750 second.twoMachinesColor = "black\n";
753 first.other = &second;
754 second.other = &first;
757 if(appData.timeOddsMode) {
758 norm = appData.timeOdds[0];
759 if(norm > appData.timeOdds[1]) norm = appData.timeOdds[1];
761 first.timeOdds = appData.timeOdds[0]/norm;
762 second.timeOdds = appData.timeOdds[1]/norm;
765 if(programVersion) free(programVersion);
766 if (appData.noChessProgram) {
767 programVersion = (char*) malloc(5 + strlen(PACKAGE_STRING));
768 sprintf(programVersion, "%s", PACKAGE_STRING);
770 /* [HGM] tidy: use tidy name, in stead of full pathname (which was probably a bug due to / vs \ ) */
771 programVersion = (char*) malloc(8 + strlen(PACKAGE_STRING) + strlen(first.tidy));
772 sprintf(programVersion, "%s + %s", PACKAGE_STRING, first.tidy);
777 UnloadEngine (ChessProgramState *cps)
779 /* Kill off first chess program */
780 if (cps->isr != NULL)
781 RemoveInputSource(cps->isr);
784 if (cps->pr != NoProc) {
786 DoSleep( appData.delayBeforeQuit );
787 SendToProgram("quit\n", cps);
788 DestroyChildProcess(cps->pr, 4 + cps->useSigterm);
791 if(appData.debugMode) fprintf(debugFP, "Unload %s\n", cps->which);
795 ClearOptions (ChessProgramState *cps)
798 cps->nrOptions = cps->comboCnt = 0;
799 for(i=0; i<MAX_OPTIONS; i++) {
800 cps->option[i].min = cps->option[i].max = cps->option[i].value = 0;
801 cps->option[i].textValue = 0;
805 char *engineNames[] = {
806 /* TRANSLATORS: "first" is the first of possible two chess engines. It is inserted into strings
807 such as "%s engine" / "%s chess program" / "%s machine" - all meaning the same thing */
809 /* TRANSLATORS: "second" is the second of possible two chess engines. It is inserted into strings
810 such as "%s engine" / "%s chess program" / "%s machine" - all meaning the same thing */
815 InitEngine (ChessProgramState *cps, int n)
816 { // [HGM] all engine initialiation put in a function that does one engine
820 cps->which = engineNames[n];
821 cps->maybeThinking = FALSE;
825 cps->sendDrawOffers = 1;
827 cps->program = appData.chessProgram[n];
828 cps->host = appData.host[n];
829 cps->dir = appData.directory[n];
830 cps->initString = appData.engInitString[n];
831 cps->computerString = appData.computerString[n];
832 cps->useSigint = TRUE;
833 cps->useSigterm = TRUE;
834 cps->reuse = appData.reuse[n];
835 cps->nps = appData.NPS[n]; // [HGM] nps: copy nodes per second
836 cps->useSetboard = FALSE;
838 cps->usePing = FALSE;
841 cps->usePlayother = FALSE;
842 cps->useColors = TRUE;
843 cps->useUsermove = FALSE;
844 cps->sendICS = FALSE;
845 cps->sendName = appData.icsActive;
846 cps->sdKludge = FALSE;
847 cps->stKludge = FALSE;
848 if(cps->tidy == NULL) cps->tidy = (char*) malloc(MSG_SIZ);
849 TidyProgramName(cps->program, cps->host, cps->tidy);
851 ASSIGN(cps->variants, appData.noChessProgram ? "" : appData.variant);
852 cps->analysisSupport = 2; /* detect */
853 cps->analyzing = FALSE;
854 cps->initDone = FALSE;
856 cps->pseudo = appData.pseudo[n];
858 /* New features added by Tord: */
859 cps->useFEN960 = FALSE;
860 cps->useOOCastle = TRUE;
861 /* End of new features added by Tord. */
862 cps->fenOverride = appData.fenOverride[n];
864 /* [HGM] time odds: set factor for each machine */
865 cps->timeOdds = appData.timeOdds[n];
867 /* [HGM] secondary TC: how to handle sessions that do not fit in 'level'*/
868 cps->accumulateTC = appData.accumulateTC[n];
869 cps->maxNrOfSessions = 1;
874 cps->drawDepth = appData.drawDepth[n];
875 cps->supportsNPS = UNKNOWN;
876 cps->memSize = FALSE;
877 cps->maxCores = FALSE;
878 ASSIGN(cps->egtFormats, "");
881 cps->optionSettings = appData.engOptions[n];
883 cps->scoreIsAbsolute = appData.scoreIsAbsolute[n]; /* [AS] */
884 cps->isUCI = appData.isUCI[n]; /* [AS] */
885 cps->hasOwnBookUCI = appData.hasOwnBookUCI[n]; /* [AS] */
888 if (appData.protocolVersion[n] > PROTOVER
889 || appData.protocolVersion[n] < 1)
894 len = snprintf(buf, MSG_SIZ, _("protocol version %d not supported"),
895 appData.protocolVersion[n]);
896 if( (len >= MSG_SIZ) && appData.debugMode )
897 fprintf(debugFP, "InitBackEnd1: buffer truncated.\n");
899 DisplayFatalError(buf, 0, 2);
903 cps->protocolVersion = appData.protocolVersion[n];
906 InitEngineUCI( installDir, cps ); // [HGM] moved here from winboard.c, to make available in xboard
907 ParseFeatures(appData.featureDefaults, cps);
910 ChessProgramState *savCps;
918 if(WaitForEngine(savCps, LoadEngine)) return;
919 CommonEngineInit(); // recalculate time odds
920 if(gameInfo.variant != StringToVariant(appData.variant)) {
921 // we changed variant when loading the engine; this forces us to reset
922 Reset(TRUE, savCps != &first);
923 oldMode = BeginningOfGame; // to prevent restoring old mode
925 InitChessProgram(savCps, FALSE);
926 if(gameMode == EditGame) SendToProgram("force\n", savCps); // in EditGame mode engine must be in force mode
927 DisplayMessage("", "");
928 if (startedFromSetupPosition) SendBoard(savCps, backwardMostMove);
929 for (i = backwardMostMove; i < currentMove; i++) SendMoveToProgram(i, savCps);
932 if(oldMode == AnalyzeMode) AnalyzeModeEvent();
936 ReplaceEngine (ChessProgramState *cps, int n)
938 oldMode = gameMode; // remember mode, so it can be restored after loading sequence is complete
940 if(oldMode != BeginningOfGame) EditGameEvent();
943 appData.noChessProgram = FALSE;
944 appData.clockMode = TRUE;
947 if(n) return; // only startup first engine immediately; second can wait
948 savCps = cps; // parameter to LoadEngine passed as globals, to allow scheduled calling :-(
952 extern char *engineName, *engineDir, *engineChoice, *engineLine, *nickName, *params;
953 extern Boolean isUCI, hasBook, storeVariant, v1, addToList, useNick;
955 static char resetOptions[] =
956 "-reuse -firstIsUCI false -firstHasOwnBookUCI true -firstTimeOdds 1 "
957 "-firstInitString \"" INIT_STRING "\" -firstComputerString \"" COMPUTER_STRING "\" "
958 "-firstFeatures \"\" -firstLogo \"\" -firstAccumulateTC 1 -fd \".\" "
959 "-firstOptions \"\" -firstNPS -1 -fn \"\" -firstScoreAbs false";
962 FloatToFront(char **list, char *engineLine)
964 char buf[MSG_SIZ], tidy[MSG_SIZ], *p = buf, *q, *r = buf;
966 if(appData.recentEngines <= 0) return;
967 TidyProgramName(engineLine, "localhost", tidy+1);
968 tidy[0] = buf[0] = '\n'; strcat(tidy, "\n");
969 strncpy(buf+1, *list, MSG_SIZ-50);
970 if(p = strstr(buf, tidy)) { // tidy name appears in list
971 q = strchr(++p, '\n'); if(q == NULL) return; // malformed, don't touch
972 while(*p++ = *++q); // squeeze out
974 strcat(tidy, buf+1); // put list behind tidy name
975 p = tidy + 1; while(q = strchr(p, '\n')) i++, r = p, p = q + 1; // count entries in new list
976 if(i > appData.recentEngines) *r = NULLCHAR; // if maximum rached, strip off last
977 ASSIGN(*list, tidy+1);
980 char *insert, *wbOptions; // point in ChessProgramNames were we should insert new engine
983 Load (ChessProgramState *cps, int i)
985 char *p, *q, buf[MSG_SIZ], command[MSG_SIZ], buf2[MSG_SIZ], buf3[MSG_SIZ], jar;
986 if(engineLine && engineLine[0]) { // an engine was selected from the combo box
987 snprintf(buf, MSG_SIZ, "-fcp %s", engineLine);
988 SwapEngines(i); // kludge to parse -f* / -first* like it is -s* / -second*
989 ParseArgsFromString(resetOptions); appData.pvSAN[0] = FALSE;
990 FREE(appData.fenOverride[0]); appData.fenOverride[0] = NULL;
991 appData.firstProtocolVersion = PROTOVER;
992 ParseArgsFromString(buf);
994 ReplaceEngine(cps, i);
995 FloatToFront(&appData.recentEngineList, engineLine);
999 while(q = strchr(p, SLASH)) p = q+1;
1000 if(*p== NULLCHAR) { DisplayError(_("You did not specify the engine executable"), 0); return; }
1001 if(engineDir[0] != NULLCHAR) {
1002 ASSIGN(appData.directory[i], engineDir); p = engineName;
1003 } else if(p != engineName) { // derive directory from engine path, when not given
1005 ASSIGN(appData.directory[i], engineName);
1007 if(SLASH == '/' && p - engineName > 1) *(p -= 2) = '.'; // for XBoard use ./exeName as command after split!
1008 } else { ASSIGN(appData.directory[i], "."); }
1009 jar = (strstr(p, ".jar") == p + strlen(p) - 4);
1011 if(strchr(p, ' ') && !strchr(p, '"')) snprintf(buf2, MSG_SIZ, "\"%s\"", p), p = buf2; // quote if it contains spaces
1012 snprintf(command, MSG_SIZ, "%s %s", p, params);
1015 if(jar) { snprintf(buf3, MSG_SIZ, "java -jar %s", p); p = buf3; }
1016 ASSIGN(appData.chessProgram[i], p);
1017 appData.isUCI[i] = isUCI;
1018 appData.protocolVersion[i] = v1 ? 1 : PROTOVER;
1019 appData.hasOwnBookUCI[i] = hasBook;
1020 if(!nickName[0]) useNick = FALSE;
1021 if(useNick) ASSIGN(appData.pgnName[i], nickName);
1025 q = firstChessProgramNames;
1026 if(nickName[0]) snprintf(buf, MSG_SIZ, "\"%s\" -fcp ", nickName); else buf[0] = NULLCHAR;
1027 quote = strchr(p, '"') ? '\'' : '"'; // use single quotes around engine command if it contains double quotes
1028 snprintf(buf+strlen(buf), MSG_SIZ-strlen(buf), "%c%s%c -fd \"%s\"%s%s%s%s%s%s%s%s\n",
1029 quote, p, quote, appData.directory[i],
1030 useNick ? " -fn \"" : "",
1031 useNick ? nickName : "",
1032 useNick ? "\"" : "",
1033 v1 ? " -firstProtocolVersion 1" : "",
1034 hasBook ? "" : " -fNoOwnBookUCI",
1035 isUCI ? (isUCI == TRUE ? " -fUCI" : gameInfo.variant == VariantShogi ? " -fUSI" : " -fUCCI") : "",
1036 storeVariant ? " -variant " : "",
1037 storeVariant ? VariantName(gameInfo.variant) : "");
1038 if(wbOptions && wbOptions[0]) snprintf(buf+strlen(buf)-1, MSG_SIZ-strlen(buf), " %s\n", wbOptions);
1039 firstChessProgramNames = malloc(len = strlen(q) + strlen(buf) + 1);
1040 if(insert != q) insert[-1] = NULLCHAR;
1041 snprintf(firstChessProgramNames, len, "%s\n%s%s", q, buf, insert);
1043 FloatToFront(&appData.recentEngineList, buf);
1045 ReplaceEngine(cps, i);
1051 int matched, min, sec;
1053 * Parse timeControl resource
1055 if (!ParseTimeControl(appData.timeControl, appData.timeIncrement,
1056 appData.movesPerSession)) {
1058 snprintf(buf, sizeof(buf), _("bad timeControl option %s"), appData.timeControl);
1059 DisplayFatalError(buf, 0, 2);
1063 * Parse searchTime resource
1065 if (*appData.searchTime != NULLCHAR) {
1066 matched = sscanf(appData.searchTime, "%d:%d", &min, &sec);
1068 searchTime = min * 60;
1069 } else if (matched == 2) {
1070 searchTime = min * 60 + sec;
1073 snprintf(buf, sizeof(buf), _("bad searchTime option %s"), appData.searchTime);
1074 DisplayFatalError(buf, 0, 2);
1083 ShowThinkingEvent(); // [HGM] thinking: make sure post/nopost state is set according to options
1084 startVariant = StringToVariant(appData.variant); // [HGM] nicks: remember original variant
1086 GetTimeMark(&programStartTime);
1087 srandom((programStartTime.ms + 1000*programStartTime.sec)*0x1001001); // [HGM] book: makes sure random is unpredictabe to msec level
1088 appData.seedBase = random() + (random()<<15);
1089 pauseStart = programStartTime; pauseStart.sec -= 100; // [HGM] matchpause: fake a pause that has long since ended
1091 ClearProgramStats();
1092 programStats.ok_to_send = 1;
1093 programStats.seen_stat = 0;
1096 * Initialize game list
1102 * Internet chess server status
1104 if (appData.icsActive) {
1105 appData.matchMode = FALSE;
1106 appData.matchGames = 0;
1108 appData.noChessProgram = !appData.zippyPlay;
1110 appData.zippyPlay = FALSE;
1111 appData.zippyTalk = FALSE;
1112 appData.noChessProgram = TRUE;
1114 if (*appData.icsHelper != NULLCHAR) {
1115 appData.useTelnet = TRUE;
1116 appData.telnetProgram = appData.icsHelper;
1119 appData.zippyTalk = appData.zippyPlay = FALSE;
1122 /* [AS] Initialize pv info list [HGM] and game state */
1126 for( i=0; i<=framePtr; i++ ) {
1127 pvInfoList[i].depth = -1;
1128 boards[i][EP_STATUS] = EP_NONE;
1129 for( j=0; j<BOARD_FILES-2; j++ ) boards[i][CASTLING][j] = NoRights;
1135 /* [AS] Adjudication threshold */
1136 adjudicateLossThreshold = appData.adjudicateLossThreshold;
1138 InitEngine(&first, 0);
1139 InitEngine(&second, 1);
1142 pairing.which = "pairing"; // pairing engine
1143 pairing.pr = NoProc;
1145 pairing.program = appData.pairingEngine;
1146 pairing.host = "localhost";
1149 if (appData.icsActive) {
1150 appData.clockMode = TRUE; /* changes dynamically in ICS mode */
1151 } else if (appData.noChessProgram) { // [HGM] st: searchTime mode now also is clockMode
1152 appData.clockMode = FALSE;
1153 first.sendTime = second.sendTime = 0;
1157 /* Override some settings from environment variables, for backward
1158 compatibility. Unfortunately it's not feasible to have the env
1159 vars just set defaults, at least in xboard. Ugh.
1161 if (appData.icsActive && (appData.zippyPlay || appData.zippyTalk)) {
1166 if (!appData.icsActive) {
1170 /* Check for variants that are supported only in ICS mode,
1171 or not at all. Some that are accepted here nevertheless
1172 have bugs; see comments below.
1174 VariantClass variant = StringToVariant(appData.variant);
1176 case VariantBughouse: /* need four players and two boards */
1177 case VariantKriegspiel: /* need to hide pieces and move details */
1178 /* case VariantFischeRandom: (Fabien: moved below) */
1179 len = snprintf(buf,MSG_SIZ, _("Variant %s supported only in ICS mode"), appData.variant);
1180 if( (len >= MSG_SIZ) && appData.debugMode )
1181 fprintf(debugFP, "InitBackEnd1: buffer truncated.\n");
1183 DisplayFatalError(buf, 0, 2);
1186 case VariantUnknown:
1187 case VariantLoadable:
1197 len = snprintf(buf, MSG_SIZ, _("Unknown variant name %s"), appData.variant);
1198 if( (len >= MSG_SIZ) && appData.debugMode )
1199 fprintf(debugFP, "InitBackEnd1: buffer truncated.\n");
1201 DisplayFatalError(buf, 0, 2);
1204 case VariantNormal: /* definitely works! */
1205 if(strcmp(appData.variant, "normal") && !appData.noChessProgram) { // [HGM] hope this is an engine-defined variant
1206 safeStrCpy(engineVariant, appData.variant, MSG_SIZ);
1209 case VariantXiangqi: /* [HGM] repetition rules not implemented */
1210 case VariantFairy: /* [HGM] TestLegality definitely off! */
1211 case VariantGothic: /* [HGM] should work */
1212 case VariantCapablanca: /* [HGM] should work */
1213 case VariantCourier: /* [HGM] initial forced moves not implemented */
1214 case VariantShogi: /* [HGM] could still mate with pawn drop */
1215 case VariantChu: /* [HGM] experimental */
1216 case VariantKnightmate: /* [HGM] should work */
1217 case VariantCylinder: /* [HGM] untested */
1218 case VariantFalcon: /* [HGM] untested */
1219 case VariantCrazyhouse: /* holdings not shown, ([HGM] fixed that!)
1220 offboard interposition not understood */
1221 case VariantWildCastle: /* pieces not automatically shuffled */
1222 case VariantNoCastle: /* pieces not automatically shuffled */
1223 case VariantFischeRandom: /* [HGM] works and shuffles pieces */
1224 case VariantLosers: /* should work except for win condition,
1225 and doesn't know captures are mandatory */
1226 case VariantSuicide: /* should work except for win condition,
1227 and doesn't know captures are mandatory */
1228 case VariantGiveaway: /* should work except for win condition,
1229 and doesn't know captures are mandatory */
1230 case VariantTwoKings: /* should work */
1231 case VariantAtomic: /* should work except for win condition */
1232 case Variant3Check: /* should work except for win condition */
1233 case VariantShatranj: /* should work except for all win conditions */
1234 case VariantMakruk: /* should work except for draw countdown */
1235 case VariantASEAN : /* should work except for draw countdown */
1236 case VariantBerolina: /* might work if TestLegality is off */
1237 case VariantCapaRandom: /* should work */
1238 case VariantJanus: /* should work */
1239 case VariantSuper: /* experimental */
1240 case VariantGreat: /* experimental, requires legality testing to be off */
1241 case VariantSChess: /* S-Chess, should work */
1242 case VariantGrand: /* should work */
1243 case VariantSpartan: /* should work */
1244 case VariantLion: /* should work */
1245 case VariantChuChess: /* should work */
1253 NextIntegerFromString (char ** str, long * value)
1258 while( *s == ' ' || *s == '\t' ) {
1264 if( *s >= '0' && *s <= '9' ) {
1265 while( *s >= '0' && *s <= '9' ) {
1266 *value = *value * 10 + (*s - '0');
1279 NextTimeControlFromString (char ** str, long * value)
1282 int result = NextIntegerFromString( str, &temp );
1285 *value = temp * 60; /* Minutes */
1286 if( **str == ':' ) {
1288 result = NextIntegerFromString( str, &temp );
1289 *value += temp; /* Seconds */
1297 NextSessionFromString (char ** str, int *moves, long * tc, long *inc, int *incType)
1298 { /* [HGM] routine added to read '+moves/time' for secondary time control. */
1299 int result = -1, type = 0; long temp, temp2;
1301 if(**str != ':') return -1; // old params remain in force!
1303 if(**str == '*') type = *(*str)++, temp = 0; // sandclock TC
1304 if( NextIntegerFromString( str, &temp ) ) return -1;
1305 if(type) { *moves = 0; *tc = temp * 500; *inc = temp * 1000; *incType = '*'; return 0; }
1308 /* time only: incremental or sudden-death time control */
1309 if(**str == '+') { /* increment follows; read it */
1311 if(**str == '!') type = *(*str)++; // Bronstein TC
1312 if(result = NextIntegerFromString( str, &temp2)) return -1;
1313 *inc = temp2 * 1000;
1314 if(**str == '.') { // read fraction of increment
1315 char *start = ++(*str);
1316 if(result = NextIntegerFromString( str, &temp2)) return -1;
1318 while(start++ < *str) temp2 /= 10;
1322 *moves = 0; *tc = temp * 1000; *incType = type;
1326 (*str)++; /* classical time control */
1327 result = NextIntegerFromString( str, &temp2); // NOTE: already converted to seconds by ParseTimeControl()
1339 GetTimeQuota (int movenr, int lastUsed, char *tcString)
1340 { /* [HGM] get time to add from the multi-session time-control string */
1341 int incType, moves=1; /* kludge to force reading of first session */
1342 long time, increment;
1345 if(!s || !*s) return 0; // empty TC string means we ran out of the last sudden-death version
1347 if(moves) NextSessionFromString(&s, &moves, &time, &increment, &incType);
1348 nextSession = s; suddenDeath = moves == 0 && increment == 0;
1349 if(movenr == -1) return time; /* last move before new session */
1350 if(incType == '*') increment = 0; else // for sandclock, time is added while not thinking
1351 if(incType == '!' && lastUsed < increment) increment = lastUsed;
1352 if(!moves) return increment; /* current session is incremental */
1353 if(movenr >= 0) movenr -= moves; /* we already finished this session */
1354 } while(movenr >= -1); /* try again for next session */
1356 return 0; // no new time quota on this move
1360 ParseTimeControl (char *tc, float ti, int mps)
1364 char buf[MSG_SIZ], buf2[MSG_SIZ], *mytc = tc;
1367 if(ti >= 0 && !strchr(tc, '+') && !strchr(tc, '/') ) mps = 0;
1368 if(!strchr(tc, '+') && !strchr(tc, '/') && sscanf(tc, "%d:%d", &min, &sec) >= 1)
1369 sprintf(mytc=buf2, "%d", 60*min+sec); // convert 'classical' min:sec tc string to seconds
1373 snprintf(buf, MSG_SIZ, ":%d/%s+%g", mps, mytc, ti);
1375 snprintf(buf, MSG_SIZ, ":%s+%g", mytc, ti);
1378 snprintf(buf, MSG_SIZ, ":%d/%s", mps, mytc);
1380 snprintf(buf, MSG_SIZ, ":%s", mytc);
1382 fullTimeControlString = StrSave(buf); // this should now be in PGN format
1384 if( NextTimeControlFromString( &tc, &tc1 ) != 0 ) {
1389 /* Parse second time control */
1392 if( NextTimeControlFromString( &tc, &tc2 ) != 0 ) {
1400 timeControl_2 = tc2 * 1000;
1410 timeControl = tc1 * 1000;
1413 timeIncrement = ti * 1000; /* convert to ms */
1414 movesPerSession = 0;
1417 movesPerSession = mps;
1425 if (appData.debugMode) {
1426 # ifdef __GIT_VERSION
1427 fprintf(debugFP, "Version: %s (%s)\n", programVersion, __GIT_VERSION);
1429 fprintf(debugFP, "Version: %s\n", programVersion);
1432 ASSIGN(currentDebugFile, appData.nameOfDebugFile); // [HGM] debug split: remember initial name in use
1434 set_cont_sequence(appData.wrapContSeq);
1435 if (appData.matchGames > 0) {
1436 appData.matchMode = TRUE;
1437 } else if (appData.matchMode) {
1438 appData.matchGames = 1;
1440 if(appData.matchMode && appData.sameColorGames > 0) /* [HGM] alternate: overrule matchGames */
1441 appData.matchGames = appData.sameColorGames;
1442 if(appData.rewindIndex > 1) { /* [HGM] autoinc: rewind implies auto-increment and overrules given index */
1443 if(appData.loadPositionIndex >= 0) appData.loadPositionIndex = -1;
1444 if(appData.loadGameIndex >= 0) appData.loadGameIndex = -1;
1447 if (appData.noChessProgram || first.protocolVersion == 1) {
1450 /* kludge: allow timeout for initial "feature" commands */
1452 DisplayMessage("", _("Starting chess program"));
1453 ScheduleDelayedEvent(InitBackEnd3, FEATURE_TIMEOUT);
1458 CalculateIndex (int index, int gameNr)
1459 { // [HGM] autoinc: absolute way to determine load index from game number (taking auto-inc and rewind into account)
1461 if(index > 0) return index; // fixed nmber
1462 if(index == 0) return 1;
1463 res = (index == -1 ? gameNr : (gameNr-1)/2 + 1); // autoinc
1464 if(appData.rewindIndex > 0) res = (res-1) % appData.rewindIndex + 1; // rewind
1469 LoadGameOrPosition (int gameNr)
1470 { // [HGM] taken out of MatchEvent and NextMatchGame (to combine it)
1471 if (*appData.loadGameFile != NULLCHAR) {
1472 if (!LoadGameFromFile(appData.loadGameFile,
1473 CalculateIndex(appData.loadGameIndex, gameNr),
1474 appData.loadGameFile, FALSE)) {
1475 DisplayFatalError(_("Bad game file"), 0, 1);
1478 } else if (*appData.loadPositionFile != NULLCHAR) {
1479 if (!LoadPositionFromFile(appData.loadPositionFile,
1480 CalculateIndex(appData.loadPositionIndex, gameNr),
1481 appData.loadPositionFile)) {
1482 DisplayFatalError(_("Bad position file"), 0, 1);
1490 ReserveGame (int gameNr, char resChar)
1492 FILE *tf = fopen(appData.tourneyFile, "r+");
1493 char *p, *q, c, buf[MSG_SIZ];
1494 if(tf == NULL) { nextGame = appData.matchGames + 1; return; } // kludge to terminate match
1495 safeStrCpy(buf, lastMsg, MSG_SIZ);
1496 DisplayMessage(_("Pick new game"), "");
1497 flock(fileno(tf), LOCK_EX); // lock the tourney file while we are messing with it
1498 ParseArgsFromFile(tf);
1499 p = q = appData.results;
1500 if(appData.debugMode) {
1501 char *r = appData.participants;
1502 fprintf(debugFP, "results = '%s'\n", p);
1503 while(*r) fprintf(debugFP, *r >= ' ' ? "%c" : "\\%03o", *r), r++;
1504 fprintf(debugFP, "\n");
1506 while(*q && *q != ' ') q++; // get first un-played game (could be beyond end!)
1508 q = malloc(strlen(p) + 2); // could be arbitrary long, but allow to extend by one!
1509 safeStrCpy(q, p, strlen(p) + 2);
1510 if(gameNr >= 0) q[gameNr] = resChar; // replace '*' with result
1511 if(appData.debugMode) fprintf(debugFP, "pick next game from '%s': %d\n", q, nextGame);
1512 if(nextGame <= appData.matchGames && resChar != ' ' && !abortMatch) { // reserve next game if tourney not yet done
1513 if(q[nextGame] == NULLCHAR) q[nextGame+1] = NULLCHAR; // append one char
1516 fseek(tf, -(strlen(p)+4), SEEK_END);
1518 if(c != '"') // depending on DOS or Unix line endings we can be one off
1519 fseek(tf, -(strlen(p)+2), SEEK_END);
1520 else fseek(tf, -(strlen(p)+3), SEEK_END);
1521 fprintf(tf, "%s\"\n", q); fclose(tf); // update, and flush by closing
1522 DisplayMessage(buf, "");
1523 free(p); appData.results = q;
1524 if(nextGame <= appData.matchGames && resChar != ' ' && !abortMatch &&
1525 (gameNr < 0 || nextGame / appData.defaultMatchGames != gameNr / appData.defaultMatchGames)) {
1526 int round = appData.defaultMatchGames * appData.tourneyType;
1527 if(gameNr < 0 || appData.tourneyType < 1 || // gauntlet engine can always stay loaded as first engine
1528 appData.tourneyType > 1 && nextGame/round != gameNr/round) // in multi-gauntlet change only after round
1529 UnloadEngine(&first); // next game belongs to other pairing;
1530 UnloadEngine(&second); // already unload the engines, so TwoMachinesEvent will load new ones.
1532 if(appData.debugMode) fprintf(debugFP, "Reserved, next=%d, nr=%d\n", nextGame, gameNr);
1536 MatchEvent (int mode)
1537 { // [HGM] moved out of InitBackend3, to make it callable when match starts through menu
1539 if(matchMode) { // already in match mode: switch it off
1541 if(!appData.tourneyFile[0]) appData.matchGames = matchGame; // kludge to let match terminate after next game.
1544 // if(gameMode != BeginningOfGame) {
1545 // DisplayError(_("You can only start a match from the initial position."), 0);
1549 if(mode == 2) appData.matchGames = appData.defaultMatchGames;
1550 /* Set up machine vs. machine match */
1552 NextTourneyGame(-1, &dummy); // sets appData.matchGames if this is tourney, to make sure ReserveGame knows it
1553 if(appData.tourneyFile[0]) {
1555 if(nextGame > appData.matchGames) {
1557 if(strchr(appData.results, '*') == NULL) {
1559 appData.tourneyCycles++;
1560 if(f = WriteTourneyFile(appData.results, NULL)) { // make a tourney file with increased number of cycles
1562 NextTourneyGame(-1, &dummy);
1564 if(nextGame <= appData.matchGames) {
1565 DisplayNote(_("You restarted an already completed tourney.\nOne more cycle will now be added to it.\nGames commence in 10 sec."));
1567 ScheduleDelayedEvent(NextMatchGame, 10000);
1572 snprintf(buf, MSG_SIZ, _("All games in tourney '%s' are already played or playing"), appData.tourneyFile);
1573 DisplayError(buf, 0);
1574 appData.tourneyFile[0] = 0;
1578 if (appData.noChessProgram) { // [HGM] in tourney engines are loaded automatically
1579 DisplayFatalError(_("Can't have a match with no chess programs"),
1584 matchGame = roundNr = 1;
1585 first.matchWins = second.matchWins = 0; // [HGM] match: needed in later matches
1589 char *comboLine = NULL; // [HGM] recent: WinBoard's first-engine combobox line
1592 InitBackEnd3 P((void))
1594 GameMode initialMode;
1598 if(!appData.icsActive && !appData.noChessProgram && !appData.matchMode && // mode involves only first engine
1599 !strcmp(appData.variant, "normal") && // no explicit variant request
1600 appData.NrRanks == -1 && appData.NrFiles == -1 && appData.holdingsSize == -1 && // no size overrides requested
1601 !SupportedVariant(first.variants, VariantNormal, 8, 8, 0, first.protocolVersion, "") && // but 'normal' won't work with engine
1602 !SupportedVariant(first.variants, VariantFischeRandom, 8, 8, 0, first.protocolVersion, "") ) { // nor will Chess960
1603 char c, *q = first.variants, *p = strchr(q, ',');
1604 if(p) *p = NULLCHAR;
1605 if(StringToVariant(q) != VariantUnknown) { // the engine can play a recognized variant, however
1607 if(sscanf(q, "%dx%d+%d_%c", &w, &h, &s, &c) == 4) // get size overrides the engine needs with it (if any)
1608 appData.NrFiles = w, appData.NrRanks = h, appData.holdingsSize = s, q = strchr(q, '_') + 1;
1609 ASSIGN(appData.variant, q); // fake user requested the first variant played by the engine
1610 Reset(TRUE, FALSE); // and re-initialize
1615 InitChessProgram(&first, startedFromSetupPosition);
1617 if(!appData.noChessProgram) { /* [HGM] tidy: redo program version to use name from myname feature */
1618 free(programVersion);
1619 programVersion = (char*) malloc(8 + strlen(PACKAGE_STRING) + strlen(first.tidy));
1620 sprintf(programVersion, "%s + %s", PACKAGE_STRING, first.tidy);
1621 FloatToFront(&appData.recentEngineList, comboLine ? comboLine : appData.firstChessProgram);
1624 if (appData.icsActive) {
1626 /* [DM] Make a console window if needed [HGM] merged ifs */
1632 if (*appData.icsCommPort != NULLCHAR)
1633 len = snprintf(buf, MSG_SIZ, _("Could not open comm port %s"),
1634 appData.icsCommPort);
1636 len = snprintf(buf, MSG_SIZ, _("Could not connect to host %s, port %s"),
1637 appData.icsHost, appData.icsPort);
1639 if( (len >= MSG_SIZ) && appData.debugMode )
1640 fprintf(debugFP, "InitBackEnd3: buffer truncated.\n");
1642 DisplayFatalError(buf, err, 1);
1647 AddInputSource(icsPR, FALSE, read_from_ics, &telnetISR);
1649 AddInputSource(NoProc, FALSE, read_from_player, &fromUserISR);
1650 if(appData.keepAlive) // [HGM] alive: schedule sending of dummy 'date' command
1651 ScheduleDelayedEvent(KeepAlive, appData.keepAlive*60*1000);
1652 } else if (appData.noChessProgram) {
1658 if (*appData.cmailGameName != NULLCHAR) {
1660 OpenLoopback(&cmailPR);
1662 AddInputSource(cmailPR, FALSE, CmailSigHandlerCallBack, &cmailISR);
1666 DisplayMessage("", "");
1667 if (StrCaseCmp(appData.initialMode, "") == 0) {
1668 initialMode = BeginningOfGame;
1669 if(!appData.icsActive && appData.noChessProgram) { // [HGM] could be fall-back
1670 gameMode = MachinePlaysBlack; // "Machine Black" might have been implicitly highlighted
1671 ModeHighlight(); // make sure XBoard knows it is highlighted, so it will un-highlight it
1672 gameMode = BeginningOfGame; // in case BeginningOfGame now means "Edit Position"
1675 } else if (StrCaseCmp(appData.initialMode, "TwoMachines") == 0) {
1676 initialMode = TwoMachinesPlay;
1677 } else if (StrCaseCmp(appData.initialMode, "AnalyzeFile") == 0) {
1678 initialMode = AnalyzeFile;
1679 } else if (StrCaseCmp(appData.initialMode, "Analysis") == 0) {
1680 initialMode = AnalyzeMode;
1681 } else if (StrCaseCmp(appData.initialMode, "MachineWhite") == 0) {
1682 initialMode = MachinePlaysWhite;
1683 } else if (StrCaseCmp(appData.initialMode, "MachineBlack") == 0) {
1684 initialMode = MachinePlaysBlack;
1685 } else if (StrCaseCmp(appData.initialMode, "EditGame") == 0) {
1686 initialMode = EditGame;
1687 } else if (StrCaseCmp(appData.initialMode, "EditPosition") == 0) {
1688 initialMode = EditPosition;
1689 } else if (StrCaseCmp(appData.initialMode, "Training") == 0) {
1690 initialMode = Training;
1692 len = snprintf(buf, MSG_SIZ, _("Unknown initialMode %s"), appData.initialMode);
1693 if( (len >= MSG_SIZ) && appData.debugMode )
1694 fprintf(debugFP, "InitBackEnd3: buffer truncated.\n");
1696 DisplayFatalError(buf, 0, 2);
1700 if (appData.matchMode) {
1701 if(appData.tourneyFile[0]) { // start tourney from command line
1703 if(f = fopen(appData.tourneyFile, "r")) {
1704 ParseArgsFromFile(f); // make sure tourney parmeters re known
1706 appData.clockMode = TRUE;
1708 } else appData.tourneyFile[0] = NULLCHAR; // for now ignore bad tourney file
1711 } else if (*appData.cmailGameName != NULLCHAR) {
1712 /* Set up cmail mode */
1713 ReloadCmailMsgEvent(TRUE);
1715 /* Set up other modes */
1716 if (initialMode == AnalyzeFile) {
1717 if (*appData.loadGameFile == NULLCHAR) {
1718 DisplayFatalError(_("AnalyzeFile mode requires a game file"), 0, 1);
1722 if (*appData.loadGameFile != NULLCHAR) {
1723 (void) LoadGameFromFile(appData.loadGameFile,
1724 appData.loadGameIndex,
1725 appData.loadGameFile, TRUE);
1726 } else if (*appData.loadPositionFile != NULLCHAR) {
1727 (void) LoadPositionFromFile(appData.loadPositionFile,
1728 appData.loadPositionIndex,
1729 appData.loadPositionFile);
1730 /* [HGM] try to make self-starting even after FEN load */
1731 /* to allow automatic setup of fairy variants with wtm */
1732 if(initialMode == BeginningOfGame && !blackPlaysFirst) {
1733 gameMode = BeginningOfGame;
1734 setboardSpoiledMachineBlack = 1;
1736 /* [HGM] loadPos: make that every new game uses the setup */
1737 /* from file as long as we do not switch variant */
1738 if(!blackPlaysFirst) {
1739 startedFromPositionFile = TRUE;
1740 CopyBoard(filePosition, boards[0]);
1743 if (initialMode == AnalyzeMode) {
1744 if (appData.noChessProgram) {
1745 DisplayFatalError(_("Analysis mode requires a chess engine"), 0, 2);
1748 if (appData.icsActive) {
1749 DisplayFatalError(_("Analysis mode does not work with ICS mode"),0,2);
1753 } else if (initialMode == AnalyzeFile) {
1754 appData.showThinking = TRUE; // [HGM] thinking: moved out of ShowThinkingEvent
1755 ShowThinkingEvent();
1757 AnalysisPeriodicEvent(1);
1758 } else if (initialMode == MachinePlaysWhite) {
1759 if (appData.noChessProgram) {
1760 DisplayFatalError(_("MachineWhite mode requires a chess engine"),
1764 if (appData.icsActive) {
1765 DisplayFatalError(_("MachineWhite mode does not work with ICS mode"),
1769 MachineWhiteEvent();
1770 } else if (initialMode == MachinePlaysBlack) {
1771 if (appData.noChessProgram) {
1772 DisplayFatalError(_("MachineBlack mode requires a chess engine"),
1776 if (appData.icsActive) {
1777 DisplayFatalError(_("MachineBlack mode does not work with ICS mode"),
1781 MachineBlackEvent();
1782 } else if (initialMode == TwoMachinesPlay) {
1783 if (appData.noChessProgram) {
1784 DisplayFatalError(_("TwoMachines mode requires a chess engine"),
1788 if (appData.icsActive) {
1789 DisplayFatalError(_("TwoMachines mode does not work with ICS mode"),
1794 } else if (initialMode == EditGame) {
1796 } else if (initialMode == EditPosition) {
1797 EditPositionEvent();
1798 } else if (initialMode == Training) {
1799 if (*appData.loadGameFile == NULLCHAR) {
1800 DisplayFatalError(_("Training mode requires a game file"), 0, 2);
1809 HistorySet (char movelist[][2*MOVE_LEN], int first, int last, int current)
1811 DisplayBook(current+1);
1813 MoveHistorySet( movelist, first, last, current, pvInfoList );
1815 EvalGraphSet( first, last, current, pvInfoList );
1817 MakeEngineOutputTitle();
1821 * Establish will establish a contact to a remote host.port.
1822 * Sets icsPR to a ProcRef for a process (or pseudo-process)
1823 * used to talk to the host.
1824 * Returns 0 if okay, error code if not.
1831 if (*appData.icsCommPort != NULLCHAR) {
1832 /* Talk to the host through a serial comm port */
1833 return OpenCommPort(appData.icsCommPort, &icsPR);
1835 } else if (*appData.gateway != NULLCHAR) {
1836 if (*appData.remoteShell == NULLCHAR) {
1837 /* Use the rcmd protocol to run telnet program on a gateway host */
1838 snprintf(buf, sizeof(buf), "%s %s %s",
1839 appData.telnetProgram, appData.icsHost, appData.icsPort);
1840 return OpenRcmd(appData.gateway, appData.remoteUser, buf, &icsPR);
1843 /* Use the rsh program to run telnet program on a gateway host */
1844 if (*appData.remoteUser == NULLCHAR) {
1845 snprintf(buf, sizeof(buf), "%s %s %s %s %s", appData.remoteShell,
1846 appData.gateway, appData.telnetProgram,
1847 appData.icsHost, appData.icsPort);
1849 snprintf(buf, sizeof(buf), "%s %s -l %s %s %s %s",
1850 appData.remoteShell, appData.gateway,
1851 appData.remoteUser, appData.telnetProgram,
1852 appData.icsHost, appData.icsPort);
1854 return StartChildProcess(buf, "", &icsPR);
1857 } else if (appData.useTelnet) {
1858 return OpenTelnet(appData.icsHost, appData.icsPort, &icsPR);
1861 /* TCP socket interface differs somewhat between
1862 Unix and NT; handle details in the front end.
1864 return OpenTCP(appData.icsHost, appData.icsPort, &icsPR);
1869 EscapeExpand (char *p, char *q)
1870 { // [HGM] initstring: routine to shape up string arguments
1871 while(*p++ = *q++) if(p[-1] == '\\')
1873 case 'n': p[-1] = '\n'; break;
1874 case 'r': p[-1] = '\r'; break;
1875 case 't': p[-1] = '\t'; break;
1876 case '\\': p[-1] = '\\'; break;
1877 case 0: *p = 0; return;
1878 default: p[-1] = q[-1]; break;
1883 show_bytes (FILE *fp, char *buf, int count)
1886 if (*buf < 040 || *(unsigned char *) buf > 0177) {
1887 fprintf(fp, "\\%03o", *buf & 0xff);
1896 /* Returns an errno value */
1898 OutputMaybeTelnet (ProcRef pr, char *message, int count, int *outError)
1900 char buf[8192], *p, *q, *buflim;
1901 int left, newcount, outcount;
1903 if (*appData.icsCommPort != NULLCHAR || appData.useTelnet ||
1904 *appData.gateway != NULLCHAR) {
1905 if (appData.debugMode) {
1906 fprintf(debugFP, ">ICS: ");
1907 show_bytes(debugFP, message, count);
1908 fprintf(debugFP, "\n");
1910 return OutputToProcess(pr, message, count, outError);
1913 buflim = &buf[sizeof(buf)-1]; /* allow 1 byte for expanding last char */
1920 if (appData.debugMode) {
1921 fprintf(debugFP, ">ICS: ");
1922 show_bytes(debugFP, buf, newcount);
1923 fprintf(debugFP, "\n");
1925 outcount = OutputToProcess(pr, buf, newcount, outError);
1926 if (outcount < newcount) return -1; /* to be sure */
1933 } else if (((unsigned char) *p) == TN_IAC) {
1934 *q++ = (char) TN_IAC;
1941 if (appData.debugMode) {
1942 fprintf(debugFP, ">ICS: ");
1943 show_bytes(debugFP, buf, newcount);
1944 fprintf(debugFP, "\n");
1946 outcount = OutputToProcess(pr, buf, newcount, outError);
1947 if (outcount < newcount) return -1; /* to be sure */
1952 read_from_player (InputSourceRef isr, VOIDSTAR closure, char *message, int count, int error)
1954 int outError, outCount;
1955 static int gotEof = 0;
1958 /* Pass data read from player on to ICS */
1961 outCount = OutputMaybeTelnet(icsPR, message, count, &outError);
1962 if (outCount < count) {
1963 DisplayFatalError(_("Error writing to ICS"), outError, 1);
1965 if(have_sent_ICS_logon == 2) {
1966 if(ini = fopen(appData.icsLogon, "w")) { // save first two lines (presumably username & password) on init script file
1967 fprintf(ini, "%s", message);
1968 have_sent_ICS_logon = 3;
1970 have_sent_ICS_logon = 1;
1971 } else if(have_sent_ICS_logon == 3) {
1972 fprintf(ini, "%s", message);
1974 have_sent_ICS_logon = 1;
1976 } else if (count < 0) {
1977 RemoveInputSource(isr);
1978 DisplayFatalError(_("Error reading from keyboard"), error, 1);
1979 } else if (gotEof++ > 0) {
1980 RemoveInputSource(isr);
1981 DisplayFatalError(_("Got end of file from keyboard"), 0, 0);
1987 { // [HGM] alive: periodically send dummy (date) command to ICS to prevent time-out
1988 if(!connectionAlive) DisplayFatalError("No response from ICS", 0, 1);
1989 connectionAlive = FALSE; // only sticks if no response to 'date' command.
1990 SendToICS("date\n");
1991 if(appData.keepAlive) ScheduleDelayedEvent(KeepAlive, appData.keepAlive*60*1000);
1994 /* added routine for printf style output to ics */
1996 ics_printf (char *format, ...)
1998 char buffer[MSG_SIZ];
2001 va_start(args, format);
2002 vsnprintf(buffer, sizeof(buffer), format, args);
2003 buffer[sizeof(buffer)-1] = '\0';
2011 int count, outCount, outError;
2013 if (icsPR == NoProc) return;
2016 outCount = OutputMaybeTelnet(icsPR, s, count, &outError);
2017 if (outCount < count) {
2018 DisplayFatalError(_("Error writing to ICS"), outError, 1);
2022 /* This is used for sending logon scripts to the ICS. Sending
2023 without a delay causes problems when using timestamp on ICC
2024 (at least on my machine). */
2026 SendToICSDelayed (char *s, long msdelay)
2028 int count, outCount, outError;
2030 if (icsPR == NoProc) return;
2033 if (appData.debugMode) {
2034 fprintf(debugFP, ">ICS: ");
2035 show_bytes(debugFP, s, count);
2036 fprintf(debugFP, "\n");
2038 outCount = OutputToProcessDelayed(icsPR, s, count, &outError,
2040 if (outCount < count) {
2041 DisplayFatalError(_("Error writing to ICS"), outError, 1);
2046 /* Remove all highlighting escape sequences in s
2047 Also deletes any suffix starting with '('
2050 StripHighlightAndTitle (char *s)
2052 static char retbuf[MSG_SIZ];
2055 while (*s != NULLCHAR) {
2056 while (*s == '\033') {
2057 while (*s != NULLCHAR && !isalpha(*s)) s++;
2058 if (*s != NULLCHAR) s++;
2060 while (*s != NULLCHAR && *s != '\033') {
2061 if (*s == '(' || *s == '[') {
2072 /* Remove all highlighting escape sequences in s */
2074 StripHighlight (char *s)
2076 static char retbuf[MSG_SIZ];
2079 while (*s != NULLCHAR) {
2080 while (*s == '\033') {
2081 while (*s != NULLCHAR && !isalpha(*s)) s++;
2082 if (*s != NULLCHAR) s++;
2084 while (*s != NULLCHAR && *s != '\033') {
2092 char engineVariant[MSG_SIZ];
2093 char *variantNames[] = VARIANT_NAMES;
2095 VariantName (VariantClass v)
2097 if(v == VariantUnknown || *engineVariant) return engineVariant;
2098 return variantNames[v];
2102 /* Identify a variant from the strings the chess servers use or the
2103 PGN Variant tag names we use. */
2105 StringToVariant (char *e)
2109 VariantClass v = VariantNormal;
2110 int i, found = FALSE;
2111 char buf[MSG_SIZ], c;
2116 /* [HGM] skip over optional board-size prefixes */
2117 if( sscanf(e, "%dx%d_%c", &i, &i, &c) == 3 ||
2118 sscanf(e, "%dx%d+%d_%c", &i, &i, &i, &c) == 4 ) {
2119 while( *e++ != '_');
2122 if(StrCaseStr(e, "misc/")) { // [HGM] on FICS, misc/shogi is not shogi
2126 for (i=0; i<sizeof(variantNames)/sizeof(char*); i++) {
2127 if (p = StrCaseStr(e, variantNames[i])) {
2128 if(p && i >= VariantShogi && (p != e || isalpha(p[strlen(variantNames[i])]))) continue;
2129 v = (VariantClass) i;
2136 if ((StrCaseStr(e, "fischer") && StrCaseStr(e, "random"))
2137 || StrCaseStr(e, "wild/fr")
2138 || StrCaseStr(e, "frc") || StrCaseStr(e, "960")) {
2139 v = VariantFischeRandom;
2140 } else if ((i = 4, p = StrCaseStr(e, "wild")) ||
2141 (i = 1, p = StrCaseStr(e, "w"))) {
2143 while (*p && (isspace(*p) || *p == '(' || *p == '/')) p++;
2150 case 0: /* FICS only, actually */
2152 /* Castling legal even if K starts on d-file */
2153 v = VariantWildCastle;
2158 /* Castling illegal even if K & R happen to start in
2159 normal positions. */
2160 v = VariantNoCastle;
2173 /* Castling legal iff K & R start in normal positions */
2179 /* Special wilds for position setup; unclear what to do here */
2180 v = VariantLoadable;
2183 /* Bizarre ICC game */
2184 v = VariantTwoKings;
2187 v = VariantKriegspiel;
2193 v = VariantFischeRandom;
2196 v = VariantCrazyhouse;
2199 v = VariantBughouse;
2205 /* Not quite the same as FICS suicide! */
2206 v = VariantGiveaway;
2212 v = VariantShatranj;
2215 /* Temporary names for future ICC types. The name *will* change in
2216 the next xboard/WinBoard release after ICC defines it. */
2254 v = VariantCapablanca;
2257 v = VariantKnightmate;
2263 v = VariantCylinder;
2269 v = VariantCapaRandom;
2272 v = VariantBerolina;
2284 /* Found "wild" or "w" in the string but no number;
2285 must assume it's normal chess. */
2289 len = snprintf(buf, MSG_SIZ, _("Unknown wild type %d"), wnum);
2290 if( (len >= MSG_SIZ) && appData.debugMode )
2291 fprintf(debugFP, "StringToVariant: buffer truncated.\n");
2293 DisplayError(buf, 0);
2299 if (appData.debugMode) {
2300 fprintf(debugFP, "recognized '%s' (%d) as variant %s\n",
2301 e, wnum, VariantName(v));
2306 static int leftover_start = 0, leftover_len = 0;
2307 char star_match[STAR_MATCH_N][MSG_SIZ];
2309 /* Test whether pattern is present at &buf[*index]; if so, return TRUE,
2310 advance *index beyond it, and set leftover_start to the new value of
2311 *index; else return FALSE. If pattern contains the character '*', it
2312 matches any sequence of characters not containing '\r', '\n', or the
2313 character following the '*' (if any), and the matched sequence(s) are
2314 copied into star_match.
2317 looking_at ( char *buf, int *index, char *pattern)
2319 char *bufp = &buf[*index], *patternp = pattern;
2321 char *matchp = star_match[0];
2324 if (*patternp == NULLCHAR) {
2325 *index = leftover_start = bufp - buf;
2329 if (*bufp == NULLCHAR) return FALSE;
2330 if (*patternp == '*') {
2331 if (*bufp == *(patternp + 1)) {
2333 matchp = star_match[++star_count];
2337 } else if (*bufp == '\n' || *bufp == '\r') {
2339 if (*patternp == NULLCHAR)
2344 *matchp++ = *bufp++;
2348 if (*patternp != *bufp) return FALSE;
2355 SendToPlayer (char *data, int length)
2357 int error, outCount;
2358 outCount = OutputToProcess(NoProc, data, length, &error);
2359 if (outCount < length) {
2360 DisplayFatalError(_("Error writing to display"), error, 1);
2365 PackHolding (char packed[], char *holding)
2375 switch (runlength) {
2386 sprintf(q, "%d", runlength);
2398 /* Telnet protocol requests from the front end */
2400 TelnetRequest (unsigned char ddww, unsigned char option)
2402 unsigned char msg[3];
2403 int outCount, outError;
2405 if (*appData.icsCommPort != NULLCHAR || appData.useTelnet) return;
2407 if (appData.debugMode) {
2408 char buf1[8], buf2[8], *ddwwStr, *optionStr;
2424 snprintf(buf1,sizeof(buf1)/sizeof(buf1[0]), "%d", ddww);
2433 snprintf(buf2,sizeof(buf2)/sizeof(buf2[0]), "%d", option);
2436 fprintf(debugFP, ">%s %s ", ddwwStr, optionStr);
2441 outCount = OutputToProcess(icsPR, (char *)msg, 3, &outError);
2443 DisplayFatalError(_("Error writing to ICS"), outError, 1);
2450 if (!appData.icsActive) return;
2451 TelnetRequest(TN_DO, TN_ECHO);
2457 if (!appData.icsActive) return;
2458 TelnetRequest(TN_DONT, TN_ECHO);
2462 CopyHoldings (Board board, char *holdings, ChessSquare lowestPiece)
2464 /* put the holdings sent to us by the server on the board holdings area */
2465 int i, j, holdingsColumn, holdingsStartRow, direction, countsColumn;
2469 if(gameInfo.holdingsWidth < 2) return;
2470 if(gameInfo.variant != VariantBughouse && board[HOLDINGS_SET])
2471 return; // prevent overwriting by pre-board holdings
2473 if( (int)lowestPiece >= BlackPawn ) {
2476 holdingsStartRow = BOARD_HEIGHT-1;
2479 holdingsColumn = BOARD_WIDTH-1;
2480 countsColumn = BOARD_WIDTH-2;
2481 holdingsStartRow = 0;
2485 for(i=0; i<BOARD_HEIGHT; i++) { /* clear holdings */
2486 board[i][holdingsColumn] = EmptySquare;
2487 board[i][countsColumn] = (ChessSquare) 0;
2489 while( (p=*holdings++) != NULLCHAR ) {
2490 piece = CharToPiece( ToUpper(p) );
2491 if(piece == EmptySquare) continue;
2492 /*j = (int) piece - (int) WhitePawn;*/
2493 j = PieceToNumber(piece);
2494 if(j >= gameInfo.holdingsSize) continue; /* ignore pieces that do not fit */
2495 if(j < 0) continue; /* should not happen */
2496 piece = (ChessSquare) ( (int)piece + (int)lowestPiece );
2497 board[holdingsStartRow+j*direction][holdingsColumn] = piece;
2498 board[holdingsStartRow+j*direction][countsColumn]++;
2504 VariantSwitch (Board board, VariantClass newVariant)
2506 int newHoldingsWidth, newWidth = 8, newHeight = 8, i, j;
2507 static Board oldBoard;
2509 startedFromPositionFile = FALSE;
2510 if(gameInfo.variant == newVariant) return;
2512 /* [HGM] This routine is called each time an assignment is made to
2513 * gameInfo.variant during a game, to make sure the board sizes
2514 * are set to match the new variant. If that means adding or deleting
2515 * holdings, we shift the playing board accordingly
2516 * This kludge is needed because in ICS observe mode, we get boards
2517 * of an ongoing game without knowing the variant, and learn about the
2518 * latter only later. This can be because of the move list we requested,
2519 * in which case the game history is refilled from the beginning anyway,
2520 * but also when receiving holdings of a crazyhouse game. In the latter
2521 * case we want to add those holdings to the already received position.
2525 if (appData.debugMode) {
2526 fprintf(debugFP, "Switch board from %s to %s\n",
2527 VariantName(gameInfo.variant), VariantName(newVariant));
2528 setbuf(debugFP, NULL);
2530 shuffleOpenings = 0; /* [HGM] shuffle */
2531 gameInfo.holdingsSize = 5; /* [HGM] prepare holdings */
2535 newWidth = 9; newHeight = 9;
2536 gameInfo.holdingsSize = 7;
2537 case VariantBughouse:
2538 case VariantCrazyhouse:
2539 newHoldingsWidth = 2; break;
2543 newHoldingsWidth = 2;
2544 gameInfo.holdingsSize = 8;
2547 case VariantCapablanca:
2548 case VariantCapaRandom:
2551 newHoldingsWidth = gameInfo.holdingsSize = 0;
2554 if(newWidth != gameInfo.boardWidth ||
2555 newHeight != gameInfo.boardHeight ||
2556 newHoldingsWidth != gameInfo.holdingsWidth ) {
2558 /* shift position to new playing area, if needed */
2559 if(newHoldingsWidth > gameInfo.holdingsWidth) {
2560 for(i=0; i<BOARD_HEIGHT; i++)
2561 for(j=BOARD_RGHT-1; j>=BOARD_LEFT; j--)
2562 board[i][j+newHoldingsWidth-gameInfo.holdingsWidth] =
2564 for(i=0; i<newHeight; i++) {
2565 board[i][0] = board[i][newWidth+2*newHoldingsWidth-1] = EmptySquare;
2566 board[i][1] = board[i][newWidth+2*newHoldingsWidth-2] = (ChessSquare) 0;
2568 } else if(newHoldingsWidth < gameInfo.holdingsWidth) {
2569 for(i=0; i<BOARD_HEIGHT; i++)
2570 for(j=BOARD_LEFT; j<BOARD_RGHT; j++)
2571 board[i][j+newHoldingsWidth-gameInfo.holdingsWidth] =
2574 board[HOLDINGS_SET] = 0;
2575 gameInfo.boardWidth = newWidth;
2576 gameInfo.boardHeight = newHeight;
2577 gameInfo.holdingsWidth = newHoldingsWidth;
2578 gameInfo.variant = newVariant;
2579 InitDrawingSizes(-2, 0);
2580 } else gameInfo.variant = newVariant;
2581 CopyBoard(oldBoard, board); // remember correctly formatted board
2582 InitPosition(FALSE); /* this sets up board[0], but also other stuff */
2583 DrawPosition(TRUE, currentMove ? boards[currentMove] : oldBoard);
2586 static int loggedOn = FALSE;
2588 /*-- Game start info cache: --*/
2590 char gs_kind[MSG_SIZ];
2591 static char player1Name[128] = "";
2592 static char player2Name[128] = "";
2593 static char cont_seq[] = "\n\\ ";
2594 static int player1Rating = -1;
2595 static int player2Rating = -1;
2596 /*----------------------------*/
2598 ColorClass curColor = ColorNormal;
2599 int suppressKibitz = 0;
2602 Boolean soughtPending = FALSE;
2603 Boolean seekGraphUp;
2604 #define MAX_SEEK_ADS 200
2606 char *seekAdList[MAX_SEEK_ADS];
2607 int ratingList[MAX_SEEK_ADS], xList[MAX_SEEK_ADS], yList[MAX_SEEK_ADS], seekNrList[MAX_SEEK_ADS], zList[MAX_SEEK_ADS];
2608 float tcList[MAX_SEEK_ADS];
2609 char colorList[MAX_SEEK_ADS];
2610 int nrOfSeekAds = 0;
2611 int minRating = 1010, maxRating = 2800;
2612 int hMargin = 10, vMargin = 20, h, w;
2613 extern int squareSize, lineGap;
2618 int x, y, color = 0, r = ratingList[i]; float tc = tcList[i];
2619 xList[i] = yList[i] = -100; // outside graph, so cannot be clicked
2620 if(r < minRating+100 && r >=0 ) r = minRating+100;
2621 if(r > maxRating) r = maxRating;
2622 if(tc < 1.f) tc = 1.f;
2623 if(tc > 95.f) tc = 95.f;
2624 x = (w-hMargin-squareSize/8-7)* log(tc)/log(95.) + hMargin;
2625 y = ((double)r - minRating)/(maxRating - minRating)
2626 * (h-vMargin-squareSize/8-1) + vMargin;
2627 if(ratingList[i] < 0) y = vMargin + squareSize/4;
2628 if(strstr(seekAdList[i], " u ")) color = 1;
2629 if(!strstr(seekAdList[i], "lightning") && // for now all wilds same color
2630 !strstr(seekAdList[i], "bullet") &&
2631 !strstr(seekAdList[i], "blitz") &&
2632 !strstr(seekAdList[i], "standard") ) color = 2;
2633 if(strstr(seekAdList[i], "(C) ")) color |= SQUARE; // plot computer seeks as squares
2634 DrawSeekDot(xList[i]=x+3*(color&~SQUARE), yList[i]=h-1-y, colorList[i]=color);
2638 PlotSingleSeekAd (int i)
2644 AddAd (char *handle, char *rating, int base, int inc, char rated, char *type, int nr, Boolean plot)
2646 char buf[MSG_SIZ], *ext = "";
2647 VariantClass v = StringToVariant(type);
2648 if(strstr(type, "wild")) {
2649 ext = type + 4; // append wild number
2650 if(v == VariantFischeRandom) type = "chess960"; else
2651 if(v == VariantLoadable) type = "setup"; else
2652 type = VariantName(v);
2654 snprintf(buf, MSG_SIZ, "%s (%s) %d %d %c %s%s", handle, rating, base, inc, rated, type, ext);
2655 if(nrOfSeekAds < MAX_SEEK_ADS-1) {
2656 if(seekAdList[nrOfSeekAds]) free(seekAdList[nrOfSeekAds]);
2657 ratingList[nrOfSeekAds] = -1; // for if seeker has no rating
2658 sscanf(rating, "%d", &ratingList[nrOfSeekAds]);
2659 tcList[nrOfSeekAds] = base + (2./3.)*inc;
2660 seekNrList[nrOfSeekAds] = nr;
2661 zList[nrOfSeekAds] = 0;
2662 seekAdList[nrOfSeekAds++] = StrSave(buf);
2663 if(plot) PlotSingleSeekAd(nrOfSeekAds-1);
2668 EraseSeekDot (int i)
2670 int x = xList[i], y = yList[i], d=squareSize/4, k;
2671 DrawSeekBackground(x-squareSize/8, y-squareSize/8, x+squareSize/8+1, y+squareSize/8+1);
2672 if(x < hMargin+d) DrawSeekAxis(hMargin, y-squareSize/8, hMargin, y+squareSize/8+1);
2673 // now replot every dot that overlapped
2674 for(k=0; k<nrOfSeekAds; k++) if(k != i) {
2675 int xx = xList[k], yy = yList[k];
2676 if(xx <= x+d && xx > x-d && yy <= y+d && yy > y-d)
2677 DrawSeekDot(xx, yy, colorList[k]);
2682 RemoveSeekAd (int nr)
2685 for(i=0; i<nrOfSeekAds; i++) if(seekNrList[i] == nr) {
2687 if(seekAdList[i]) free(seekAdList[i]);
2688 seekAdList[i] = seekAdList[--nrOfSeekAds];
2689 seekNrList[i] = seekNrList[nrOfSeekAds];
2690 ratingList[i] = ratingList[nrOfSeekAds];
2691 colorList[i] = colorList[nrOfSeekAds];
2692 tcList[i] = tcList[nrOfSeekAds];
2693 xList[i] = xList[nrOfSeekAds];
2694 yList[i] = yList[nrOfSeekAds];
2695 zList[i] = zList[nrOfSeekAds];
2696 seekAdList[nrOfSeekAds] = NULL;
2702 MatchSoughtLine (char *line)
2704 char handle[MSG_SIZ], rating[MSG_SIZ], type[MSG_SIZ];
2705 int nr, base, inc, u=0; char dummy;
2707 if(sscanf(line, "%d %s %s %d %d rated %s", &nr, rating, handle, &base, &inc, type) == 6 ||
2708 sscanf(line, "%d %s %s %s %d %d rated %c", &nr, rating, handle, type, &base, &inc, &dummy) == 7 ||
2710 (sscanf(line, "%d %s %s %d %d unrated %s", &nr, rating, handle, &base, &inc, type) == 6 ||
2711 sscanf(line, "%d %s %s %s %d %d unrated %c", &nr, rating, handle, type, &base, &inc, &dummy) == 7) ) {
2712 // match: compact and save the line
2713 AddAd(handle, rating, base, inc, u ? 'u' : 'r', type, nr, FALSE);
2723 if(!seekGraphUp) return FALSE;
2724 h = BOARD_HEIGHT * (squareSize + lineGap) + lineGap + 2*border;
2725 w = BOARD_WIDTH * (squareSize + lineGap) + lineGap + 2*border;
2727 DrawSeekBackground(0, 0, w, h);
2728 DrawSeekAxis(hMargin, h-1-vMargin, w-5, h-1-vMargin);
2729 DrawSeekAxis(hMargin, h-1-vMargin, hMargin, 5);
2730 for(i=0; i<4000; i+= 100) if(i>=minRating && i<maxRating) {
2731 int yy =((double)i - minRating)/(maxRating - minRating)*(h-vMargin-squareSize/8-1) + vMargin;
2733 DrawSeekAxis(hMargin-5, yy, hMargin+5*(i%500==0), yy); // rating ticks
2736 snprintf(buf, MSG_SIZ, "%d", i);
2737 DrawSeekText(buf, hMargin+squareSize/8+7, yy);
2740 DrawSeekText("unrated", hMargin+squareSize/8+7, h-1-vMargin-squareSize/4);
2741 for(i=1; i<100; i+=(i<10?1:5)) {
2742 int xx = (w-hMargin-squareSize/8-7)* log((double)i)/log(95.) + hMargin;
2743 DrawSeekAxis(xx, h-1-vMargin, xx, h-6-vMargin-3*(i%10==0)); // TC ticks
2744 if(i<=5 || (i>40 ? i%20 : i%10) == 0) {
2746 snprintf(buf, MSG_SIZ, "%d", i);
2747 DrawSeekText(buf, xx-2-3*(i>9), h-1-vMargin/2);
2750 for(i=0; i<nrOfSeekAds; i++) PlotSeekAd(i);
2755 SeekGraphClick (ClickType click, int x, int y, int moving)
2757 static int lastDown = 0, displayed = 0, lastSecond;
2758 if(y < 0) return FALSE;
2759 if(!(appData.seekGraph && appData.icsActive && loggedOn &&
2760 (gameMode == BeginningOfGame || gameMode == IcsIdle))) {
2761 if(!seekGraphUp) return FALSE;
2762 seekGraphUp = FALSE; // seek graph is up when it shouldn't be: take it down
2763 DrawPosition(TRUE, NULL);
2766 if(!seekGraphUp) { // initiate cration of seek graph by requesting seek-ad list
2767 if(click == Release || moving) return FALSE;
2769 soughtPending = TRUE;
2770 SendToICS(ics_prefix);
2771 SendToICS("sought\n"); // should this be "sought all"?
2772 } else { // issue challenge based on clicked ad
2773 int dist = 10000; int i, closest = 0, second = 0;
2774 for(i=0; i<nrOfSeekAds; i++) {
2775 int d = (x-xList[i])*(x-xList[i]) + (y-yList[i])*(y-yList[i]) + zList[i];
2776 if(d < dist) { dist = d; closest = i; }
2777 second += (d - zList[i] < 120); // count in-range ads
2778 if(click == Press && moving != 1 && zList[i]>0) zList[i] *= 0.8; // age priority
2782 second = (second > 1);
2783 if(displayed != closest || second != lastSecond) {
2784 DisplayMessage(second ? "!" : "", seekAdList[closest]);
2785 lastSecond = second; displayed = closest;
2787 if(click == Press) {
2788 if(moving == 2) zList[closest] = 100; // right-click; push to back on press
2791 } // on press 'hit', only show info
2792 if(moving == 2) return TRUE; // ignore right up-clicks on dot
2793 snprintf(buf, MSG_SIZ, "play %d\n", seekNrList[closest]);
2794 SendToICS(ics_prefix);
2796 return TRUE; // let incoming board of started game pop down the graph
2797 } else if(click == Release) { // release 'miss' is ignored
2798 zList[lastDown] = 100; // make future selection of the rejected ad more difficult
2799 if(moving == 2) { // right up-click
2800 nrOfSeekAds = 0; // refresh graph
2801 soughtPending = TRUE;
2802 SendToICS(ics_prefix);
2803 SendToICS("sought\n"); // should this be "sought all"?
2806 } else if(moving) { if(displayed >= 0) DisplayMessage("", ""); displayed = -1; return TRUE; }
2807 // press miss or release hit 'pop down' seek graph
2808 seekGraphUp = FALSE;
2809 DrawPosition(TRUE, NULL);
2815 read_from_ics (InputSourceRef isr, VOIDSTAR closure, char *data, int count, int error)
2817 #define BUF_SIZE (16*1024) /* overflowed at 8K with "inchannel 1" on FICS? */
2818 #define STARTED_NONE 0
2819 #define STARTED_MOVES 1
2820 #define STARTED_BOARD 2
2821 #define STARTED_OBSERVE 3
2822 #define STARTED_HOLDINGS 4
2823 #define STARTED_CHATTER 5
2824 #define STARTED_COMMENT 6
2825 #define STARTED_MOVES_NOHIDE 7
2827 static int started = STARTED_NONE;
2828 static char parse[20000];
2829 static int parse_pos = 0;
2830 static char buf[BUF_SIZE + 1];
2831 static int firstTime = TRUE, intfSet = FALSE;
2832 static ColorClass prevColor = ColorNormal;
2833 static int savingComment = FALSE;
2834 static int cmatch = 0; // continuation sequence match
2841 int backup; /* [DM] For zippy color lines */
2843 char talker[MSG_SIZ]; // [HGM] chat
2844 int channel, collective=0;
2846 connectionAlive = TRUE; // [HGM] alive: I think, therefore I am...
2848 if (appData.debugMode) {
2850 fprintf(debugFP, "<ICS: ");
2851 show_bytes(debugFP, data, count);
2852 fprintf(debugFP, "\n");
2856 if (appData.debugMode) { int f = forwardMostMove;
2857 fprintf(debugFP, "ics input %d, castling = %d %d %d %d %d %d\n", f,
2858 boards[f][CASTLING][0],boards[f][CASTLING][1],boards[f][CASTLING][2],
2859 boards[f][CASTLING][3],boards[f][CASTLING][4],boards[f][CASTLING][5]);
2862 /* If last read ended with a partial line that we couldn't parse,
2863 prepend it to the new read and try again. */
2864 if (leftover_len > 0) {
2865 for (i=0; i<leftover_len; i++)
2866 buf[i] = buf[leftover_start + i];
2869 /* copy new characters into the buffer */
2870 bp = buf + leftover_len;
2871 buf_len=leftover_len;
2872 for (i=0; i<count; i++)
2875 if (data[i] == '\r')
2878 // join lines split by ICS?
2879 if (!appData.noJoin)
2882 Joining just consists of finding matches against the
2883 continuation sequence, and discarding that sequence
2884 if found instead of copying it. So, until a match
2885 fails, there's nothing to do since it might be the
2886 complete sequence, and thus, something we don't want
2889 if (data[i] == cont_seq[cmatch])
2892 if (cmatch == strlen(cont_seq))
2894 cmatch = 0; // complete match. just reset the counter
2897 it's possible for the ICS to not include the space
2898 at the end of the last word, making our [correct]
2899 join operation fuse two separate words. the server
2900 does this when the space occurs at the width setting.
2902 if (!buf_len || buf[buf_len-1] != ' ')
2913 match failed, so we have to copy what matched before
2914 falling through and copying this character. In reality,
2915 this will only ever be just the newline character, but
2916 it doesn't hurt to be precise.
2918 strncpy(bp, cont_seq, cmatch);
2930 buf[buf_len] = NULLCHAR;
2931 // next_out = leftover_len; // [HGM] should we set this to 0, and not print it in advance?
2936 while (i < buf_len) {
2937 /* Deal with part of the TELNET option negotiation
2938 protocol. We refuse to do anything beyond the
2939 defaults, except that we allow the WILL ECHO option,
2940 which ICS uses to turn off password echoing when we are
2941 directly connected to it. We reject this option
2942 if localLineEditing mode is on (always on in xboard)
2943 and we are talking to port 23, which might be a real
2944 telnet server that will try to keep WILL ECHO on permanently.
2946 if (buf_len - i >= 3 && (unsigned char) buf[i] == TN_IAC) {
2947 static int remoteEchoOption = FALSE; /* telnet ECHO option */
2948 unsigned char option;
2950 switch ((unsigned char) buf[++i]) {
2952 if (appData.debugMode)
2953 fprintf(debugFP, "\n<WILL ");
2954 switch (option = (unsigned char) buf[++i]) {
2956 if (appData.debugMode)
2957 fprintf(debugFP, "ECHO ");
2958 /* Reply only if this is a change, according
2959 to the protocol rules. */
2960 if (remoteEchoOption) break;
2961 if (appData.localLineEditing &&
2962 atoi(appData.icsPort) == TN_PORT) {
2963 TelnetRequest(TN_DONT, TN_ECHO);
2966 TelnetRequest(TN_DO, TN_ECHO);
2967 remoteEchoOption = TRUE;
2971 if (appData.debugMode)
2972 fprintf(debugFP, "%d ", option);
2973 /* Whatever this is, we don't want it. */
2974 TelnetRequest(TN_DONT, option);
2979 if (appData.debugMode)
2980 fprintf(debugFP, "\n<WONT ");
2981 switch (option = (unsigned char) buf[++i]) {
2983 if (appData.debugMode)
2984 fprintf(debugFP, "ECHO ");
2985 /* Reply only if this is a change, according
2986 to the protocol rules. */
2987 if (!remoteEchoOption) break;
2989 TelnetRequest(TN_DONT, TN_ECHO);
2990 remoteEchoOption = FALSE;
2993 if (appData.debugMode)
2994 fprintf(debugFP, "%d ", (unsigned char) option);
2995 /* Whatever this is, it must already be turned
2996 off, because we never agree to turn on
2997 anything non-default, so according to the
2998 protocol rules, we don't reply. */
3003 if (appData.debugMode)
3004 fprintf(debugFP, "\n<DO ");
3005 switch (option = (unsigned char) buf[++i]) {
3007 /* Whatever this is, we refuse to do it. */
3008 if (appData.debugMode)
3009 fprintf(debugFP, "%d ", option);
3010 TelnetRequest(TN_WONT, option);
3015 if (appData.debugMode)
3016 fprintf(debugFP, "\n<DONT ");
3017 switch (option = (unsigned char) buf[++i]) {
3019 if (appData.debugMode)
3020 fprintf(debugFP, "%d ", option);
3021 /* Whatever this is, we are already not doing
3022 it, because we never agree to do anything
3023 non-default, so according to the protocol
3024 rules, we don't reply. */
3029 if (appData.debugMode)
3030 fprintf(debugFP, "\n<IAC ");
3031 /* Doubled IAC; pass it through */
3035 if (appData.debugMode)
3036 fprintf(debugFP, "\n<%d ", (unsigned char) buf[i]);
3037 /* Drop all other telnet commands on the floor */
3040 if (oldi > next_out)
3041 SendToPlayer(&buf[next_out], oldi - next_out);
3047 /* OK, this at least will *usually* work */
3048 if (!loggedOn && looking_at(buf, &i, "ics%")) {
3052 if (loggedOn && !intfSet) {
3053 if (ics_type == ICS_ICC) {
3054 snprintf(str, MSG_SIZ,
3055 "/set-quietly interface %s\n/set-quietly style 12\n",
3057 if(appData.seekGraph && appData.autoRefresh) // [HGM] seekgraph
3058 strcat(str, "/set-2 51 1\n/set seek 1\n");
3059 } else if (ics_type == ICS_CHESSNET) {
3060 snprintf(str, MSG_SIZ, "/style 12\n");
3062 safeStrCpy(str, "alias $ @\n$set interface ", sizeof(str)/sizeof(str[0]));
3063 strcat(str, programVersion);
3064 strcat(str, "\n$iset startpos 1\n$iset ms 1\n");
3065 if(appData.seekGraph && appData.autoRefresh) // [HGM] seekgraph
3066 strcat(str, "$iset seekremove 1\n$set seek 1\n");
3068 strcat(str, "$iset nohighlight 1\n");
3070 strcat(str, "$iset lock 1\n$style 12\n");
3073 NotifyFrontendLogin();
3077 if (started == STARTED_COMMENT) {
3078 /* Accumulate characters in comment */
3079 parse[parse_pos++] = buf[i];
3080 if (buf[i] == '\n') {
3081 parse[parse_pos] = NULLCHAR;
3082 if(chattingPartner>=0) {
3084 snprintf(mess, MSG_SIZ, "%s%s", talker, parse);
3085 OutputChatMessage(chattingPartner, mess);
3086 if(collective == 1) { // broadcasted talk also goes to private chatbox of talker
3088 talker[strlen(talker+1)-1] = NULLCHAR; // strip closing delimiter
3089 for(p=0; p<MAX_CHAT; p++) if(!StrCaseCmp(talker+1, chatPartner[p])) {
3090 snprintf(mess, MSG_SIZ, "%s: %s", chatPartner[chattingPartner], parse);
3091 OutputChatMessage(p, mess);
3095 chattingPartner = -1;
3096 if(collective != 3) next_out = i+1; // [HGM] suppress printing in ICS window
3099 if(!suppressKibitz) // [HGM] kibitz
3100 AppendComment(forwardMostMove, StripHighlight(parse), TRUE);
3101 else { // [HGM kibitz: divert memorized engine kibitz to engine-output window
3102 int nrDigit = 0, nrAlph = 0, j;
3103 if(parse_pos > MSG_SIZ - 30) // defuse unreasonably long input
3104 { parse_pos = MSG_SIZ-30; parse[parse_pos - 1] = '\n'; }
3105 parse[parse_pos] = NULLCHAR;
3106 // try to be smart: if it does not look like search info, it should go to
3107 // ICS interaction window after all, not to engine-output window.
3108 for(j=0; j<parse_pos; j++) { // count letters and digits
3109 nrDigit += (parse[j] >= '0' && parse[j] <= '9');
3110 nrAlph += (parse[j] >= 'a' && parse[j] <= 'z');
3111 nrAlph += (parse[j] >= 'A' && parse[j] <= 'Z');
3113 if(nrAlph < 9*nrDigit) { // if more than 10% digit we assume search info
3114 int depth=0; float score;
3115 if(sscanf(parse, "!!! %f/%d", &score, &depth) == 2 && depth>0) {
3116 // [HGM] kibitz: save kibitzed opponent info for PGN and eval graph
3117 pvInfoList[forwardMostMove-1].depth = depth;
3118 pvInfoList[forwardMostMove-1].score = 100*score;
3120 OutputKibitz(suppressKibitz, parse);
3123 if(gameMode == IcsObserving) // restore original ICS messages
3124 /* TRANSLATORS: to 'kibitz' is to send a message to all players and the game observers */
3125 snprintf(tmp, MSG_SIZ, "%s kibitzes: %s", star_match[0], parse);
3127 /* TRANSLATORS: to 'kibitz' is to send a message to all players and the game observers */
3128 snprintf(tmp, MSG_SIZ, _("your opponent kibitzes: %s"), parse);
3129 SendToPlayer(tmp, strlen(tmp));
3131 next_out = i+1; // [HGM] suppress printing in ICS window
3133 started = STARTED_NONE;
3135 /* Don't match patterns against characters in comment */
3140 if (started == STARTED_CHATTER) {
3141 if (buf[i] != '\n') {
3142 /* Don't match patterns against characters in chatter */
3146 started = STARTED_NONE;
3147 if(suppressKibitz) next_out = i+1;
3150 /* Kludge to deal with rcmd protocol */
3151 if (firstTime && looking_at(buf, &i, "\001*")) {
3152 DisplayFatalError(&buf[1], 0, 1);
3158 if (!loggedOn && looking_at(buf, &i, "chessclub.com")) {
3161 if (appData.debugMode)
3162 fprintf(debugFP, "ics_type %d\n", ics_type);
3165 if (!loggedOn && looking_at(buf, &i, "freechess.org")) {
3166 ics_type = ICS_FICS;
3168 if (appData.debugMode)
3169 fprintf(debugFP, "ics_type %d\n", ics_type);
3172 if (!loggedOn && looking_at(buf, &i, "chess.net")) {
3173 ics_type = ICS_CHESSNET;
3175 if (appData.debugMode)
3176 fprintf(debugFP, "ics_type %d\n", ics_type);
3181 (looking_at(buf, &i, "\"*\" is *a registered name") ||
3182 looking_at(buf, &i, "Logging you in as \"*\"") ||
3183 looking_at(buf, &i, "will be \"*\""))) {
3184 safeStrCpy(ics_handle, star_match[0], sizeof(ics_handle)/sizeof(ics_handle[0]));
3188 if (loggedOn && !have_set_title && ics_handle[0] != NULLCHAR) {
3190 snprintf(buf, sizeof(buf), "%s@%s", ics_handle, appData.icsHost);
3191 DisplayIcsInteractionTitle(buf);
3192 have_set_title = TRUE;
3195 /* skip finger notes */
3196 if (started == STARTED_NONE &&
3197 ((buf[i] == ' ' && isdigit(buf[i+1])) ||
3198 (buf[i] == '1' && buf[i+1] == '0')) &&
3199 buf[i+2] == ':' && buf[i+3] == ' ') {
3200 started = STARTED_CHATTER;
3206 // [HGM] seekgraph: recognize sought lines and end-of-sought message
3207 if(appData.seekGraph) {
3208 if(soughtPending && MatchSoughtLine(buf+i)) {
3209 i = strstr(buf+i, "rated") - buf;
3210 if (oldi > next_out) SendToPlayer(&buf[next_out], oldi - next_out);
3211 next_out = leftover_start = i;
3212 started = STARTED_CHATTER;
3213 suppressKibitz = TRUE;
3216 if((gameMode == IcsIdle || gameMode == BeginningOfGame)
3217 && looking_at(buf, &i, "* ads displayed")) {
3218 soughtPending = FALSE;
3223 if(appData.autoRefresh) {
3224 if(looking_at(buf, &i, "* (*) seeking * * * * *\"play *\" to respond)\n")) {
3225 int s = (ics_type == ICS_ICC); // ICC format differs
3227 AddAd(star_match[0], star_match[1], atoi(star_match[2+s]), atoi(star_match[3+s]),
3228 star_match[4+s][0], star_match[5-3*s], atoi(star_match[7]), TRUE);
3229 looking_at(buf, &i, "*% "); // eat prompt
3230 if(oldi > 0 && buf[oldi-1] == '\n') oldi--; // suppress preceding LF, if any
3231 if (oldi > next_out) SendToPlayer(&buf[next_out], oldi - next_out);
3232 next_out = i; // suppress
3235 if(looking_at(buf, &i, "\nAds removed: *\n") || looking_at(buf, &i, "\031(51 * *\031)")) {
3236 char *p = star_match[0];
3238 if(seekGraphUp) RemoveSeekAd(atoi(p));
3239 while(*p && *p++ != ' '); // next
3241 looking_at(buf, &i, "*% "); // eat prompt
3242 if (oldi > next_out) SendToPlayer(&buf[next_out], oldi - next_out);
3249 /* skip formula vars */
3250 if (started == STARTED_NONE &&
3251 buf[i] == 'f' && isdigit(buf[i+1]) && buf[i+2] == ':') {
3252 started = STARTED_CHATTER;
3257 // [HGM] kibitz: try to recognize opponent engine-score kibitzes, to divert them to engine-output window
3258 if (appData.autoKibitz && started == STARTED_NONE &&
3259 !appData.icsEngineAnalyze && // [HGM] [DM] ICS analyze
3260 (gameMode == IcsPlayingWhite || gameMode == IcsPlayingBlack || gameMode == IcsObserving)) {
3261 if((looking_at(buf, &i, "\n* kibitzes: ") || looking_at(buf, &i, "\n* whispers: ") ||
3262 looking_at(buf, &i, "* kibitzes: ") || looking_at(buf, &i, "* whispers: ")) &&
3263 (StrStr(star_match[0], gameInfo.white) == star_match[0] ||
3264 StrStr(star_match[0], gameInfo.black) == star_match[0] )) { // kibitz of self or opponent
3265 suppressKibitz = TRUE;
3266 if (oldi > next_out) SendToPlayer(&buf[next_out], oldi - next_out);
3268 if((StrStr(star_match[0], gameInfo.white) == star_match[0]
3269 && (gameMode == IcsPlayingWhite)) ||
3270 (StrStr(star_match[0], gameInfo.black) == star_match[0]
3271 && (gameMode == IcsPlayingBlack)) ) // opponent kibitz
3272 started = STARTED_CHATTER; // own kibitz we simply discard
3274 started = STARTED_COMMENT; // make sure it will be collected in parse[]
3275 parse_pos = 0; parse[0] = NULLCHAR;
3276 savingComment = TRUE;
3277 suppressKibitz = gameMode != IcsObserving ? 2 :
3278 (StrStr(star_match[0], gameInfo.white) == NULL) + 1;
3282 if((looking_at(buf, &i, "\nkibitzed to *\n") || looking_at(buf, &i, "kibitzed to *\n") ||
3283 looking_at(buf, &i, "\n(kibitzed to *\n") || looking_at(buf, &i, "(kibitzed to *\n"))
3284 && atoi(star_match[0])) {
3285 // suppress the acknowledgements of our own autoKibitz
3287 if (oldi > next_out) SendToPlayer(&buf[next_out], oldi - next_out);
3288 if(p = strchr(star_match[0], ' ')) p[1] = NULLCHAR; // clip off "players)" on FICS
3289 SendToPlayer(star_match[0], strlen(star_match[0]));
3290 if(looking_at(buf, &i, "*% ")) // eat prompt
3291 suppressKibitz = FALSE;
3295 } // [HGM] kibitz: end of patch
3297 if(looking_at(buf, &i, "* rating adjustment: * --> *\n")) continue;
3299 // [HGM] chat: intercept tells by users for which we have an open chat window
3301 if(started == STARTED_NONE && (looking_at(buf, &i, "* tells you:") || looking_at(buf, &i, "* says:") ||
3302 looking_at(buf, &i, "* whispers:") ||
3303 looking_at(buf, &i, "* kibitzes:") ||
3304 looking_at(buf, &i, "* shouts:") ||
3305 looking_at(buf, &i, "* c-shouts:") ||
3306 looking_at(buf, &i, "--> * ") ||
3307 looking_at(buf, &i, "*(*):") && (sscanf(star_match[1], "%d", &channel),1) ||
3308 looking_at(buf, &i, "*(*)(*):") && (sscanf(star_match[2], "%d", &channel),1) ||
3309 looking_at(buf, &i, "*(*)(*)(*):") && (sscanf(star_match[3], "%d", &channel),1) ||
3310 looking_at(buf, &i, "*(*)(*)(*)(*):") && sscanf(star_match[4], "%d", &channel) == 1 )) {
3312 sscanf(star_match[0], "%[^(]", talker+1); // strip (C) or (U) off ICS handle
3313 chattingPartner = -1; collective = 0;
3315 if(channel >= 0) // channel broadcast; look if there is a chatbox for this channel
3316 for(p=0; p<MAX_CHAT; p++) {
3318 if(chatPartner[p][0] >= '0' && chatPartner[p][0] <= '9' && channel == atoi(chatPartner[p])) {
3319 talker[0] = '['; strcat(talker, "] ");
3320 Colorize((channel == 1 ? ColorChannel1 : ColorChannel), FALSE);
3321 chattingPartner = p; break;
3324 if(buf[i-3] == 'e') // kibitz; look if there is a KIBITZ chatbox
3325 for(p=0; p<MAX_CHAT; p++) {
3327 if(!strcmp("kibitzes", chatPartner[p])) {
3328 talker[0] = '['; strcat(talker, "] ");
3329 chattingPartner = p; break;
3332 if(buf[i-3] == 'r') // whisper; look if there is a WHISPER chatbox
3333 for(p=0; p<MAX_CHAT; p++) {
3335 if(!strcmp("whispers", chatPartner[p])) {
3336 talker[0] = '['; strcat(talker, "] ");
3337 chattingPartner = p; break;
3340 if(buf[i-3] == 't' || buf[oldi+2] == '>') {// shout, c-shout or it; look if there is a 'shouts' chatbox
3341 if(buf[i-8] == '-' && buf[i-3] == 't')
3342 for(p=0; p<MAX_CHAT; p++) { // c-shout; check if dedicatesd c-shout box exists
3344 if(!strcmp("c-shouts", chatPartner[p])) {
3345 talker[0] = '('; strcat(talker, ") "); Colorize(ColorSShout, FALSE);
3346 chattingPartner = p; break;
3349 if(chattingPartner < 0)
3350 for(p=0; p<MAX_CHAT; p++) {
3352 if(!strcmp("shouts", chatPartner[p])) {
3353 if(buf[oldi+2] == '>') { talker[0] = '<'; strcat(talker, "> "); Colorize(ColorShout, FALSE); }
3354 else if(buf[i-8] == '-') { talker[0] = '('; strcat(talker, ") "); Colorize(ColorSShout, FALSE); }
3355 else { talker[0] = '['; strcat(talker, "] "); Colorize(ColorShout, FALSE); }
3356 chattingPartner = p; break;
3360 if(chattingPartner<0) // if not, look if there is a chatbox for this indivdual
3361 for(p=0; p<MAX_CHAT; p++) if(!StrCaseCmp(talker+1, chatPartner[p])) {
3363 Colorize(ColorTell, FALSE);
3364 if(collective) safeStrCpy(talker, "broadcasts: ", MSG_SIZ);
3366 chattingPartner = p; break;
3368 if(chattingPartner<0) i = oldi, safeStrCpy(lastTalker, talker+1, MSG_SIZ); else {
3369 Colorize(curColor, TRUE); // undo the bogus colorations we just made to trigger the souds
3370 started = STARTED_COMMENT;
3371 parse_pos = 0; parse[0] = NULLCHAR;
3372 savingComment = 3 + chattingPartner; // counts as TRUE
3373 if(collective == 3) i = oldi; else {
3374 suppressKibitz = TRUE;
3375 if(oldi > 0 && buf[oldi-1] == '\n') oldi--;
3376 if (oldi > next_out) SendToPlayer(&buf[next_out], oldi - next_out);
3380 } // [HGM] chat: end of patch
3383 if (appData.zippyTalk || appData.zippyPlay) {
3384 /* [DM] Backup address for color zippy lines */
3386 if (loggedOn == TRUE)
3387 if (ZippyControl(buf, &backup) || ZippyConverse(buf, &backup) ||
3388 (appData.zippyPlay && ZippyMatch(buf, &backup)));
3390 } // [DM] 'else { ' deleted
3392 /* Regular tells and says */
3393 (tkind = 1, looking_at(buf, &i, "* tells you: ")) ||
3394 looking_at(buf, &i, "* (your partner) tells you: ") ||
3395 looking_at(buf, &i, "* says: ") ||
3396 /* Don't color "message" or "messages" output */
3397 (tkind = 5, looking_at(buf, &i, "*. * (*:*): ")) ||
3398 looking_at(buf, &i, "*. * at *:*: ") ||
3399 looking_at(buf, &i, "--* (*:*): ") ||
3400 /* Message notifications (same color as tells) */
3401 looking_at(buf, &i, "* has left a message ") ||
3402 looking_at(buf, &i, "* just sent you a message:\n") ||
3403 /* Whispers and kibitzes */
3404 (tkind = 2, looking_at(buf, &i, "* whispers: ")) ||
3405 looking_at(buf, &i, "* kibitzes: ") ||
3407 (tkind = 3, looking_at(buf, &i, "*(*: "))) {
3409 if (tkind == 1 && strchr(star_match[0], ':')) {
3410 /* Avoid "tells you:" spoofs in channels */
3413 if (star_match[0][0] == NULLCHAR ||
3414 strchr(star_match[0], ' ') ||
3415 (tkind == 3 && strchr(star_match[1], ' '))) {
3416 /* Reject bogus matches */
3419 if (appData.colorize) {
3420 if (oldi > next_out) {
3421 SendToPlayer(&buf[next_out], oldi - next_out);
3426 Colorize(ColorTell, FALSE);
3427 curColor = ColorTell;