4.3BSD - /usr/src/games/monop/misc.c

   1: # include   "monop.ext"
   2: # include   <ctype.h>
   3: # include   <signal.h>
   4: 
   5: # define    execsh(sh)  execl(sh, shell_name[roll(1, num_names)-1], 0)
   6: 
   7: static char *shell_def  = "/bin/csh",
   8:         *shell_name[]   = {
   9:             ".Hi Mom!",
  10:             ".Kick Me",
  11:             ".I'm really the next process down",
  12:             ".Hi Kids!",
  13:             ".This space for rent",
  14:             ".Singin' in the rain....",
  15:             ".I am but a Cog in the Wheel of Life",
  16:             ".Look out!!! Behind you!!!!!",
  17:             ".Looking for a good time, sailor?",
  18:             ".I don't get NO respect...",
  19:             ".Augghh!  You peeked!"
  20:         };
  21: 
  22: static int  num_names   = sizeof shell_name / sizeof (char *);;
  23: 
  24: char    *shell_in();
  25: 
  26: /*
  27:  *	This routine executes a truncated set of commands until a
  28:  * "yes or "no" answer is gotten.
  29:  */
  30: getyn(prompt)
  31: reg char    *prompt; {
  32: 
  33:     reg int com;
  34: 
  35:     for (;;)
  36:         if ((com=getinp(prompt, yn)) < 2)
  37:             return com;
  38:         else
  39:             (*func[com-2])();
  40: }
  41: /*
  42:  *	This routine tells the player if he's out of money.
  43:  */
  44: notify() {
  45: 
  46:     if (cur_p->money < 0)
  47:         printf("That leaves you $%d in debt\n", -cur_p->money);
  48:     else if (cur_p->money == 0)
  49:         printf("that leaves you broke\n");
  50:     else if (fixing && !told_em && cur_p->money > 0) {
  51:         printf("-- You are now Solvent ---\n");
  52:         told_em = TRUE;
  53:     }
  54: }
  55: /*
  56:  *	This routine switches to the next player
  57:  */
  58: next_play() {
  59: 
  60:     player = ++player % num_play;
  61:     cur_p = &play[player];
  62:     num_doub = 0;
  63: }
  64: /*
  65:  *	This routine gets an integer from the keyboard after the
  66:  * given prompt.
  67:  */
  68: get_int(prompt)
  69: reg char    *prompt; {
  70: 
  71:     reg int     num;
  72:     reg char    *sp;
  73:     char        buf[257];
  74: 
  75:     for (;;) {
  76: inter:
  77:         printf(prompt);
  78:         num = 0;
  79:         for (sp = buf; (*sp=getchar()) != '\n'; sp++)
  80:             if (*sp == -1)  /* check for interrupted system call */
  81:                 goto inter;
  82:         if (sp == buf)
  83:             continue;
  84:         for (sp = buf; isspace(*sp); sp++)
  85:             continue;
  86:         for (; isdigit(*sp); sp++)
  87:             num = num * 10 + *sp - '0';
  88:         if (*sp == '\n')
  89:             return num;
  90:         else
  91:             printf("I can't understand that\n");
  92:     }
  93: }
  94: /*
  95:  *	This routine sets the monopoly flag from the list given.
  96:  */
  97: set_ownlist(pl)
  98: int pl; {
  99: 
 100:     reg int num;        /* general counter		*/
 101:     reg MON *orig;      /* remember starting monop ptr	*/
 102:     reg OWN *op;        /* current owned prop		*/
 103:     OWN *orig_op;       /* origianl prop before loop	*/
 104: 
 105:     op = play[pl].own_list;
 106: #ifdef DEBUG
 107:     printf("op [%d] = play[pl [%d] ].own_list;\n", op, pl);
 108: #endif
 109:     while (op) {
 110: #ifdef DEBUG
 111:         printf("op->sqr->type = %d\n", op->sqr->type);
 112: #endif
 113:         switch (op->sqr->type) {
 114:           case UTIL:
 115: #ifdef DEBUG
 116:             printf("  case UTIL:\n");
 117: #endif
 118:             for (num = 0; op && op->sqr->type == UTIL; op = op->next)
 119:                 num++;
 120:             play[pl].num_util = num;
 121: #ifdef DEBUG
 122:             printf("play[pl].num_util = num [%d];\n", num);
 123: #endif
 124:             break;
 125:           case RR:
 126: #ifdef DEBUG
 127:             printf("  case RR:\n");
 128: #endif
 129:             for (num = 0; op && op->sqr->type == RR; op = op->next) {
 130: #ifdef DEBUG
 131:                 printf("iter: %d\n", num);
 132:                 printf("op = %d, op->sqr = %d, op->sqr->type = %d\n", op, op->sqr, op->sqr->type);
 133: #endif
 134:                 num++;
 135:             }
 136:             play[pl].num_rr = num;
 137: #ifdef DEBUG
 138:             printf("play[pl].num_rr = num [%d];\n", num);
 139: #endif
 140:             break;
 141:           case PRPTY:
 142: #ifdef DEBUG
 143:             printf("  case PRPTY:\n");
 144: #endif
 145:             orig = op->sqr->desc->mon_desc;
 146:             orig_op = op;
 147:             num = 0;
 148:             while (op && op->sqr->desc->mon_desc == orig) {
 149: #ifdef DEBUG
 150:                 printf("iter: %d\n", num);
 151: #endif
 152:                 num++;
 153: #ifdef DEBUG
 154:                 printf("op = op->next ");
 155: #endif
 156:                 op = op->next;
 157: #ifdef DEBUG
 158:                 printf("[%d];\n", op);
 159: #endif
 160:             }
 161: #ifdef DEBUG
 162:             printf("num = %d\n");
 163: #endif
 164:             if (orig == 0) {
 165:                 printf("panic:  bad monopoly descriptor: orig = %d\n", orig);
 166:                 printf("player # %d\n", pl+1);
 167:                 printhold(pl);
 168:                 printf("orig_op = %d\n", orig_op);
 169:                 printf("orig_op->sqr->type = %d (PRPTY)\n", op->sqr->type);
 170:                 printf("orig_op->next = %d\n", op->next);
 171:                 printf("orig_op->sqr->desc = %d\n", op->sqr->desc);
 172:                 printf("op = %d\n", op);
 173:                 printf("op->sqr->type = %d (PRPTY)\n", op->sqr->type);
 174:                 printf("op->next = %d\n", op->next);
 175:                 printf("op->sqr->desc = %d\n", op->sqr->desc);
 176:                 printf("num = %d\n", num);
 177:             }
 178: #ifdef DEBUG
 179:             printf("orig->num_in = %d\n", orig->num_in);
 180: #endif
 181:             if (num == orig->num_in)
 182:                 is_monop(orig, pl);
 183:             else
 184:                 isnot_monop(orig);
 185:             break;
 186:         }
 187:     }
 188: }
 189: /*
 190:  *	This routine sets things up as if it is a new monopoly
 191:  */
 192: is_monop(mp, pl)
 193: reg MON *mp;
 194: int pl; {
 195: 
 196:     reg char    *sp;
 197:     reg int     i;
 198: 
 199:     mp->owner = pl;
 200:     mp->num_own = mp->num_in;
 201:     for (i = 0; i < mp->num_in; i++)
 202:         mp->sq[i]->desc->monop = TRUE;
 203:     mp->name = mp->mon_n;
 204: }
 205: /*
 206:  *	This routine sets things up as if it is no longer a monopoly
 207:  */
 208: isnot_monop(mp)
 209: reg MON *mp; {
 210: 
 211:     reg char    *sp;
 212:     reg int     i;
 213: 
 214:     mp->owner = -1;
 215:     for (i = 0; i < mp->num_in; i++)
 216:         mp->sq[i]->desc->monop = FALSE;
 217:     mp->name = mp->not_m;
 218: }
 219: /*
 220:  *	This routine gives a list of the current player's routine
 221:  */
 222: list() {
 223: 
 224:     printhold(player);
 225: }
 226: /*
 227:  *	This routine gives a list of a given players holdings
 228:  */
 229: list_all() {
 230: 
 231:     reg int pl;
 232: 
 233:     while ((pl=getinp("Whose holdings do you want to see? ", name_list)) < num_play)
 234:         printhold(pl);
 235: }
 236: /*
 237:  *	This routine gives the players a chance before it exits.
 238:  */
 239: quit() {
 240: 
 241:     putchar('\n');
 242:     if (getyn("Do you all really want to quit? ", yn) == 0)
 243:         exit(0);
 244:     signal(2, quit);
 245: }
 246: /*
 247:  *	This routine copies one structure to another
 248:  */
 249: cpy_st(s1, s2, size)
 250: reg int *s1, *s2, size; {
 251: 
 252:     size /= 2;
 253:     while (size--)
 254:         *s1++ = *s2++;
 255: }
 256: /*
 257:  *	This routine forks off a shell.  It uses the users login shell
 258:  */
 259: shell_out() {
 260: 
 261:     static char *shell = NULL;
 262: 
 263:     printline();
 264:     if (shell == NULL)
 265:         shell = shell_in();
 266:     fflush();
 267:     if (!fork()) {
 268:         signal(SIGINT, SIG_DFL);
 269:         execsh(shell);
 270:     }
 271:     ignoresigs();
 272:     wait();
 273:     resetsigs();
 274:     putchar('\n');
 275:     printline();
 276: }
 277: /*
 278:  *	This routine looks up the users login shell
 279:  */
 280: # include   <pwd.h>
 281: 
 282: struct passwd   *getpwuid();
 283: 
 284: char        *getenv();
 285: 
 286: char *
 287: shell_in() {
 288: 
 289:     reg struct passwd   *pp;
 290:     reg char        *sp;
 291: 
 292:     if ((sp = getenv("SHELL")) == NULL) {
 293:         pp = getpwuid(getuid());
 294:         if (pp->pw_shell[0] != '\0')
 295:             return pp->pw_shell;
 296:         else
 297:             return shell_def;
 298:         /*return (*(pp->pw_shell) != '\0' ? pp->pw_shell : shell_def);*/
 299:     }
 300:     return sp;
 301: }
 302: /*
 303:  *	This routine sets things up to ignore all the signals.
 304:  */
 305: ignoresigs() {
 306: 
 307:     reg int i;
 308: 
 309:     for (i = 0; i < NSIG; i++)
 310:         signal(i, SIG_IGN);
 311: }
 312: /*
 313:  *	This routine sets up things as they were before.
 314:  */
 315: resetsigs() {
 316: 
 317:     reg int i;
 318: 
 319:     for (i = 0; i < NSIG; i++)
 320:         signal(i, SIG_DFL);
 321:     signal(2, quit);
 322: }

Defined functions

Defined variables

Defined macros