monop/execute.c

   1 /*      $NetBSD: execute.c,v 1.21 2008/02/24 06:12:49 dholland Exp $    */
   2
   3 /*
   4  * Copyright (c) 1980, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 #ifndef lint
  34 #if 0
  35 static char sccsid[] = "@(#)execute.c   8.1 (Berkeley) 5/31/93";
  36 #else
  37 __RCSID("$NetBSD: execute.c,v 1.21 2008/02/24 06:12:49 dholland Exp $");
  38 #endif
  39 #endif /* not lint */
  40
  41 #include <fcntl.h>
  42 #include <stdlib.h>
  43 #include <unistd.h>
  44 #include <limits.h>
  45 #include <sys/types.h>
  46 #include <sys/stat.h>
  47 #include <sys/time.h>
  48 #include <time.h>
  49 #include <errno.h>
  50
  51 #include "deck.h"
  52 #include "monop.h"
  53
  54 #define MIN_FORMAT_VERSION 1
  55 #define CUR_FORMAT_VERSION 1
  56 #define MAX_FORMAT_VERSION 1
  57
  58 typedef struct stat     STAT;
  59 typedef struct tm       TIME;
  60
  61 static char     buf[257];
  62
  63 static bool     new_play;       /* set if move on to new player         */
  64
  65 static void show_move(void);
  66
  67 static void restore_reset(void);
  68 static int restore_parseline(char *txt);
  69 static int restore_toplevel_attr(const char *attribute, char *txt);
  70 static int restore_player_attr(const char *attribute, char *txt);
  71 static int restore_deck_attr(const char *attribute, char *txt);
  72 static int restore_square_attr(const char *attribute, char *txt);
  73 static int getnum(const char *what, char *txt, int min, int max, int *ret);
  74 static int getnum_withbrace(const char *what, char *txt, int min, int max,
  75                 int *ret);
  76
  77 /*
  78  *      This routine executes the given command by index number
  79  */
  80 void
  81 execute(com_num)
  82         int com_num;
  83 {
  84         new_play = FALSE;       /* new_play is true if fixing   */
  85         (*func[com_num])();
  86         notify();
  87         force_morg();
  88         if (new_play)
  89                 next_play();
  90         else if (num_doub)
  91                 printf("%s rolled doubles.  Goes again\n", cur_p->name);
  92 }
  93
  94 /*
  95  *      This routine moves a piece around.
  96  */
  97 void
  98 do_move()
  99 {
 100         int r1, r2;
 101         bool was_jail;
 102
 103         new_play = was_jail = FALSE;
 104         printf("roll is %d, %d\n", r1=roll(1, 6), r2=roll(1, 6));
 105         if (cur_p->loc == JAIL) {
 106                 was_jail++;
 107                 if (!move_jail(r1, r2)) {
 108                         new_play++;
 109                         goto ret;
 110                 }
 111         }
 112         else {
 113                 if (r1 == r2 && ++num_doub == 3) {
 114                         printf("That's 3 doubles.  You go to jail\n");
 115                         goto_jail();
 116                         new_play++;
 117                         goto ret;
 118                 }
 119                 move(r1+r2);
 120         }
 121         if (r1 != r2 || was_jail)
 122                 new_play++;
 123 ret:
 124         return;
 125 }
 126
 127 /*
 128  *      This routine moves a normal move
 129  */
 130 void
 131 move(rl)
 132         int rl;
 133 {
 134         int old_loc;
 135
 136         old_loc = cur_p->loc;
 137         cur_p->loc = (cur_p->loc + rl) % N_SQRS;
 138         if (cur_p->loc < old_loc && rl > 0) {
 139                 cur_p->money += 200;
 140                 printf("You pass %s and get $200\n", board[0].name);
 141         }
 142         show_move();
 143 }
 144
 145 /*
 146  *      This routine shows the results of a move
 147  */
 148 static void
 149 show_move()
 150 {
 151         SQUARE *sqp;
 152
 153         sqp = &board[cur_p->loc];
 154         printf("That puts you on %s\n", sqp->name);
 155         switch (sqp->type) {
 156           case SAFE:
 157                 printf("That is a safe place\n");
 158                 break;
 159           case CC:
 160                 cc();
 161                 break;
 162           case CHANCE:
 163                 chance();
 164                 break;
 165           case INC_TAX:
 166                 inc_tax();
 167                 break;
 168           case GOTO_J:
 169                 goto_jail();
 170                 break;
 171           case LUX_TAX:
 172                 lux_tax();
 173                 break;
 174           case PRPTY:
 175           case RR:
 176           case UTIL:
 177                 if (sqp->owner < 0) {
 178                         printf("That would cost $%d\n", sqp->cost);
 179                         if (getyn("Do you want to buy? ") == 0) {
 180                                 buy(player, sqp);
 181                                 cur_p->money -= sqp->cost;
 182                         }
 183                         else if (num_play > 2)
 184                                 bid();
 185                 }
 186                 else if (sqp->owner == player)
 187                         printf("You own it.\n");
 188                 else
 189                         rent(sqp);
 190         }
 191 }
 192
 193 /*
 194  * Reset the game state.
 195  */
 196 static void
 197 reset_game(void)
 198 {
 199         int i;
 200
 201         for (i = 0; i < N_SQRS; i++) {
 202                 board[i].owner = -1;
 203                 if (board[i].type == PRPTY) {
 204                         board[i].desc->morg = 0;
 205                         board[i].desc->houses = 0;
 206                 } else if (board[i].type == RR || board[i].type == UTIL) {
 207                         board[i].desc->morg = 0;
 208                 }
 209         }
 210
 211         for (i = 0; i < 2; i++) {
 212                 deck[i].top_card = 0;
 213                 deck[i].gojf_used = FALSE;
 214         }
 215
 216         if (play) {
 217                 for (i = 0; i < num_play; i++) {
 218                         free(play[i].name);
 219                         play[i].name = NULL;
 220                 }
 221                 free(play);
 222                 play = NULL;
 223         }
 224
 225         for (i = 0; i < MAX_PL+2; i++) {
 226                 name_list[i] = NULL;
 227         }
 228
 229         cur_p = NULL;
 230         num_play = 0;
 231         player = 0;
 232         num_doub = 0;
 233         fixing = FALSE;
 234         trading = FALSE;
 235         told_em = FALSE;
 236         spec = FALSE;
 237 }
 238
 239
 240 /*
 241  *      This routine saves the current game for use at a later date
 242  */
 243 void
 244 save()
 245 {
 246         char *sp;
 247         FILE *outf;
 248         time_t t;
 249         struct stat sb;
 250         int i, j;
 251
 252         printf("Which file do you wish to save it in? ");
 253         fgets(buf, sizeof(buf), stdin);
 254         if (feof(stdin))
 255                 return;
 256         sp = strchr(buf, '\n');
 257         if (sp)
 258                 *sp = '\0';
 259
 260         /*
 261          * check for existing files, and confirm overwrite if needed
 262          */
 263
 264         if (stat(buf, &sb) == 0
 265             && getyn("File exists.  Do you wish to overwrite? ") > 0)
 266                 return;
 267
 268         outf = fopen(buf, "w");
 269         if (outf == NULL) {
 270                 warn("%s", buf);
 271                 return;
 272         }
 273         printf("\"%s\" ", buf);
 274         time(&t);                       /* get current time             */
 275
 276         /* Header */
 277         fprintf(outf, "NetBSD monop format v%d\n", CUR_FORMAT_VERSION);
 278         fprintf(outf, "time %s", ctime(&t));  /* ctime includes a \n */
 279         fprintf(outf, "numplayers %d\n", num_play);
 280         fprintf(outf, "currentplayer %d\n", player);
 281         fprintf(outf, "doubles %d\n", num_doub);
 282
 283         /* Players */
 284         for (i = 0; i < num_play; i++) {
 285                 fprintf(outf, "player %d {\n", i);
 286                 fprintf(outf, "    name %s\n", name_list[i]);
 287                 fprintf(outf, "    money %d\n", play[i].money);
 288                 fprintf(outf, "    loc %d\n", play[i].loc);
 289                 fprintf(outf, "    num_gojf %d\n", play[i].num_gojf);
 290                 fprintf(outf, "    in_jail %d\n", play[i].in_jail);
 291                 fprintf(outf, "}\n");
 292         }
 293
 294         /* Decks */
 295         for (i = 0; i < 2; i++) {
 296                 fprintf(outf, "deck %d {\n", i);
 297                 fprintf(outf, "    numcards %d\n", deck[i].num_cards);
 298                 fprintf(outf, "    topcard %d\n", deck[i].top_card);
 299                 fprintf(outf, "    gojf_used %d\n", deck[i].gojf_used);
 300                 fprintf(outf, "    cards");
 301                 for (j = 0; j < deck[i].num_cards; j++)
 302                         fprintf(outf, " %d", deck[i].cards[j]);
 303                 fprintf(outf, "\n");
 304                 fprintf(outf, "}\n");
 305         }
 306
 307         /* Board */
 308         for (i = 0; i < N_SQRS; i++) {
 309                 fprintf(outf, "square %d {\n", i);
 310                 fprintf(outf, "owner %d\n", board[i].owner);
 311                 if (board[i].owner < 0) {
 312                         /* nothing */
 313                 } else if (board[i].type == PRPTY) {
 314                         fprintf(outf, "morg %d\n", board[i].desc->morg);
 315                         fprintf(outf, "houses %d\n", board[i].desc->houses);
 316                 } else if (board[i].type == RR || board[i].type == UTIL) {
 317                         fprintf(outf, "morg %d\n", board[i].desc->morg);
 318                 }
 319                 fprintf(outf, "}\n");
 320         }
 321         if (ferror(outf) || fflush(outf))
 322                 warnx("write error");
 323         fclose(outf);
 324
 325         strcpy(buf, ctime(&t));
 326         for (sp = buf; *sp != '\n'; sp++)
 327                 continue;
 328         *sp = '\0';
 329         printf("[%s]\n", buf);
 330 }
 331
 332 /*
 333  *      This routine restores an old game from a file
 334  */
 335 void
 336 restore(void)
 337 {
 338         char *sp;
 339
 340         for (;;) {
 341                 printf("Which file do you wish to restore from? ");
 342                 fgets(buf, sizeof(buf), stdin);
 343                 if (feof(stdin))
 344                         return;
 345                 sp = strchr(buf, '\n');
 346                 if (sp)
 347                         *sp = '\0';
 348                 if (rest_f(buf) == 0)
 349                         break;
 350         }
 351 }
 352
 353 /*
 354  * This does the actual restoring.  It returns zero on success,
 355  * and -1 on failure.
 356  */
 357 int
 358 rest_f(const char *file)
 359 {
 360         char *sp;
 361         FILE *inf;
 362         char xbuf[80];
 363         STAT sbuf;
 364         char readbuf[512];
 365         int ret = 0;
 366
 367         inf = fopen(file, "r");
 368         if (inf == NULL) {
 369                 warn("%s", file);
 370                 return -1;
 371         }
 372         printf("\"%s\" ", file);
 373         if (fstat(fileno(inf), &sbuf) < 0) {
 374                 err(1, "%s: fstat", file);
 375         }
 376
 377         /* Clear the game state to prevent brokenness on misordered files. */
 378         reset_game();
 379
 380         /* Reset the parser */
 381         restore_reset();
 382
 383         /* Note: can't use buf[], file might point at it. (Lame...) */
 384         while (fgets(readbuf, sizeof(readbuf), inf)) {
 385                 /*
 386                  * The input buffer is long enough to handle anything
 387                  * that's supposed to be in the output buffer, so if
 388                  * we get a partial line, complain.
 389                  */
 390                 sp = strchr(readbuf, '\n');
 391                 if (sp == NULL) {
 392                         printf("file is corrupt: long lines.\n");
 393                         ret = -1;
 394                         break;
 395                 }
 396                 *sp = '\0';
 397
 398                 if (restore_parseline(readbuf)) {
 399                         ret = -1;
 400                         break;
 401                 }
 402         }
 403
 404         if (ferror(inf))
 405                 warnx("%s: read error", file);
 406         fclose(inf);
 407
 408         if (ret < 0)
 409                 return -1;
 410
 411         name_list[num_play] = "done";
 412
 413         if (play == NULL || cur_p == NULL || num_play < 2) {
 414                 printf("save file is incomplete.\n");
 415                 return -1;
 416         }
 417
 418         /*
 419          * We could at this point crosscheck the following:
 420          *    - there are only two GOJF cards floating around
 421          *    - total number of houses and hotels does not exceed maximums
 422          *    - no props are both built and mortgaged
 423          * but for now we don't.
 424          */
 425
 426         strcpy(xbuf, ctime(&sbuf.st_mtime));
 427         for (sp = xbuf; *sp != '\n'; sp++)
 428                 continue;
 429         *sp = '\0';
 430         printf("[%s]\n", xbuf);
 431         return 0;
 432 }
 433
 434 /*
 435  * State of the restore parser
 436  */
 437 static int restore_version;
 438 static enum {
 439         RI_NONE,
 440         RI_PLAYER,
 441         RI_DECK,
 442         RI_SQUARE
 443 } restore_item;
 444 static int restore_itemnum;
 445
 446 /*
 447  * Reset the restore parser
 448  */
 449 static void
 450 restore_reset(void)
 451 {
 452         restore_version = -1;
 453         restore_item = RI_NONE;
 454         restore_itemnum = -1;
 455 }
 456
 457 /*
 458  * Handle one line of the save file
 459  */
 460 static int
 461 restore_parseline(char *txt)
 462 {
 463         char *attribute;
 464         char *s;
 465
 466         if (restore_version < 0) {
 467                 /* Haven't seen the header yet. Demand it right away. */
 468                 if (!strncmp(txt, "NetBSD monop format v", 21)) {
 469                         return getnum("format version", txt+21,
 470                                       MIN_FORMAT_VERSION,
 471                                       MAX_FORMAT_VERSION,
 472                                       &restore_version);
 473                 }
 474                 printf("file is not a monop save file.\n");
 475                 return -1;
 476         }
 477
 478         /* Check for lines that are right braces. */
 479         if (!strcmp(txt, "}")) {
 480                 if (restore_item == RI_NONE) {
 481                         printf("mismatched close brace.\n");
 482                         return -1;
 483                 }
 484                 restore_item = RI_NONE;
 485                 restore_itemnum = -1;
 486                 return 0;
 487         }
 488
 489         /* Any other line must begin with a word, which is the attribute. */
 490         s = txt;
 491         while (*s==' ')
 492                 s++;
 493         attribute = s;
 494         s = strchr(attribute, ' ');
 495         if (s == NULL) {
 496                 printf("file is corrupt: attribute %s lacks value.\n",
 497                     attribute);
 498                 return -1;
 499         }
 500         *(s++) = '\0';
 501         while (*s==' ')
 502                 s++;
 503         /* keep the remaining text for further handling */
 504         txt = s;
 505
 506         switch (restore_item) {
 507             case RI_NONE:
 508                 /* toplevel attributes */
 509                 return restore_toplevel_attr(attribute, txt);
 510
 511             case RI_PLAYER:
 512                 /* player attributes */
 513                 return restore_player_attr(attribute, txt);
 514
 515             case RI_DECK:
 516                 /* deck attributes */
 517                 return restore_deck_attr(attribute, txt);
 518
 519             case RI_SQUARE:
 520                 /* board square attributes */
 521                 return restore_square_attr(attribute, txt);
 522         }
 523         /* NOTREACHED */
 524         printf("internal logic error\n");
 525         return -1;
 526 }
 527
 528 static int
 529 restore_toplevel_attr(const char *attribute, char *txt)
 530 {
 531         if (!strcmp(attribute, "time")) {
 532                 /* nothing */
 533         } else if (!strcmp(attribute, "numplayers")) {
 534                 if (getnum("numplayers", txt, 2, MAX_PL, &num_play) < 0) {
 535                         return -1;
 536                 }
 537                 if (play != NULL) {
 538                         printf("numplayers: multiple settings\n");
 539                         return -1;
 540                 }
 541                 play = calloc((size_t)num_play, sizeof(play[0]));
 542                 if (play == NULL) {
 543                         err(1, "calloc");
 544                 }
 545         } else if (!strcmp(attribute, "currentplayer")) {
 546                 if (getnum("currentplayer", txt, 0, num_play-1, &player) < 0) {
 547                         return -1;
 548                 }
 549                 if (play == NULL) {
 550                         printf("currentplayer: before numplayers\n");
 551                         return -1;
 552                 }
 553                 cur_p = &play[player];
 554         } else if (!strcmp(attribute, "doubles")) {
 555                 if (getnum("doubles", txt, 0, 2, &num_doub) < 0) {
 556                         return -1;
 557                 }
 558         } else if (!strcmp(attribute, "player")) {
 559                 if (getnum_withbrace("player", txt, 0, num_play-1,
 560                     &restore_itemnum) < 0) {
 561                         return -1;
 562                 }
 563                 restore_item = RI_PLAYER;
 564         } else if (!strcmp(attribute, "deck")) {
 565                 if (getnum_withbrace("deck", txt, 0, 1,
 566                     &restore_itemnum) < 0) {
 567                         return -1;
 568                 }
 569                 restore_item = RI_DECK;
 570         } else if (!strcmp(attribute, "square")) {
 571                 if (getnum_withbrace("square", txt, 0, N_SQRS-1,
 572                     &restore_itemnum) < 0) {
 573                         return -1;
 574                 }
 575                 restore_item = RI_SQUARE;
 576         } else {
 577                 printf("unknown attribute %s\n", attribute);
 578                 return -1;
 579         }
 580         return 0;
 581 }
 582
 583 static int
 584 restore_player_attr(const char *attribute, char *txt)
 585 {
 586         PLAY *pp;
 587         int tmp;
 588
 589         if (play == NULL) {
 590                 printf("player came before numplayers.\n");
 591                 return -1;
 592         }
 593         pp = &play[restore_itemnum];
 594
 595         if (!strcmp(attribute, "name")) {
 596                 if (pp->name != NULL) {
 597                         printf("player has multiple names.\n");
 598                         return -1;
 599                 }
 600                 /* XXX should really systematize the max name length */
 601                 if (strlen(txt) > 256) {
 602                         txt[256] = 0;
 603                 }
 604                 pp->name = strdup(txt);
 605                 if (pp->name == NULL)
 606                         err(1, "strdup");
 607                 name_list[restore_itemnum] = pp->name;
 608         } else if (!strcmp(attribute, "money")) {
 609                 if (getnum(attribute, txt, 0, INT_MAX, &pp->money) < 0) {
 610                         return -1;
 611                 }
 612         } else if (!strcmp(attribute, "loc")) {
 613                 /* note: not N_SQRS-1 */
 614                 if (getnum(attribute, txt, 0, N_SQRS, &tmp) < 0) {
 615                         return -1;
 616                 }
 617                 pp->loc = tmp;
 618         } else if (!strcmp(attribute, "num_gojf")) {
 619                 if (getnum(attribute, txt, 0, 2, &tmp) < 0) {
 620                         return -1;
 621                 }
 622                 pp->num_gojf = tmp;
 623         } else if (!strcmp(attribute, "in_jail")) {
 624                 if (getnum(attribute, txt, 0, 3, &tmp) < 0) {
 625                         return -1;
 626                 }
 627                 pp->in_jail = tmp;
 628                 if (pp->in_jail > 0 && pp->loc != JAIL) {
 629                         printf("player escaped from jail?\n");
 630                         return -1;
 631                 }
 632         } else {
 633                 printf("unknown attribute %s\n", attribute);
 634                 return -1;
 635         }
 636         return 0;
 637 }
 638
 639 static int
 640 restore_deck_attr(const char *attribute, char *txt)
 641 {
 642         int tmp, j;
 643         char *s;
 644         DECK *dp;
 645
 646         dp = &deck[restore_itemnum];
 647
 648         if (!strcmp(attribute, "numcards")) {
 649                 if (getnum(attribute, txt, dp->num_cards, dp->num_cards,
 650                     &tmp) < 0) {
 651                         return -1;
 652                 }
 653         } else if (!strcmp(attribute, "topcard")) {
 654                 if (getnum(attribute, txt, 0, dp->num_cards,
 655                     &dp->top_card) < 0) {
 656                         return -1;
 657                 }
 658         } else if (!strcmp(attribute, "gojf_used")) {
 659                 if (getnum(attribute, txt, 0, 1, &tmp) < 0) {
 660                         return -1;
 661                 }
 662                 dp->gojf_used = tmp;
 663         } else if (!strcmp(attribute, "cards")) {
 664                 errno = 0;
 665                 s = txt;
 666                 for (j = 0; j<dp->num_cards; j++) {
 667                         tmp = strtol(s, &s, 10);
 668                         if (tmp < 0 || tmp >= dp->num_cards) {
 669                                 printf("cards: out of range value\n");
 670                                 return -1;
 671                         }
 672                         dp->cards[j] = tmp;
 673                 }
 674                 if (errno) {
 675                         printf("cards: invalid values\n");
 676                         return -1;
 677                 }
 678         } else {
 679                 printf("unknown attribute %s\n", attribute);
 680                 return -1;
 681         }
 682         return 0;
 683 }
 684
 685 static int
 686 restore_square_attr(const char *attribute, char *txt)
 687 {
 688         SQUARE *sp = &board[restore_itemnum];
 689         int tmp;
 690
 691         if (!strcmp(attribute, "owner")) {
 692                 if (getnum(attribute, txt, -1, num_play-1, &tmp) < 0) {
 693                         return -1;
 694                 }
 695                 sp->owner = tmp;
 696                 if (tmp >= 0)
 697                         add_list(tmp, &play[tmp].own_list, restore_itemnum);
 698         } else if (!strcmp(attribute, "morg")) {
 699                 if (sp->type != PRPTY && sp->type != RR && sp->type != UTIL) {
 700                         printf("unownable property is mortgaged.\n");
 701                         return -1;
 702                 }
 703                 if (getnum(attribute, txt, 0, 1, &tmp) < 0) {
 704                         return -1;
 705                 }
 706                 sp->desc->morg = tmp;
 707         } else if (!strcmp(attribute, "houses")) {
 708                 if (sp->type != PRPTY) {
 709                         printf("unbuildable property has houses.\n");
 710                         return -1;
 711                 }
 712                 if (getnum(attribute, txt, 0, 5, &tmp) < 0) {
 713                         return -1;
 714                 }
 715                 sp->desc->houses = tmp;
 716         } else {
 717                 printf("unknown attribute %s\n", attribute);
 718                 return -1;
 719         }
 720         return 0;
 721 }
 722
 723 static int
 724 getnum(const char *what, char *txt, int min, int max, int *ret)
 725 {
 726         char *s;
 727         long l;
 728
 729         errno = 0;
 730         l = strtol(txt, &s, 10);
 731         if (errno || strlen(s)>0) {
 732                 printf("%s: not a number.\n", what);
 733                 return -1;
 734         }
 735         if (l < min || l > max) {
 736                 printf("%s: out of range.\n", what);
 737         }
 738         *ret = l;
 739         return 0;
 740 }
 741
 742 static int
 743 getnum_withbrace(const char *what, char *txt, int min, int max, int *ret)
 744 {
 745         char *s;
 746         s = strchr(txt, ' ');
 747         if (s == NULL) {
 748                 printf("%s: expected open brace\n", what);
 749                 return -1;
 750         }
 751         *(s++) = '\0';
 752         while (*s == ' ')
 753                 s++;
 754         if (*s != '{') {
 755                 printf("%s: expected open brace\n", what);
 756                 return -1;
 757         }
 758         if (s[1] != 0) {
 759                 printf("%s: garbage after open brace\n", what);
 760                 return -1;
 761         }
 762         return getnum(what, txt, min, max, ret);
 763 }