# 2.11BSD#431 - /usr/src/games/hack/hack.rumors.c

##### Functions

    init_rumors       X
    outline           X
    outrumor          X
    skipline          X
    used              X

##### Variables

    n_rumors          X
    n_used_rumors     X
    usedbits          X

##### Macros

    CHARSZ            X

       1: /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
       2: /* hack.rumors.c - version 1.0.3 */
       3:
       4: #include    <stdio.h>
       5: #include    "hack.h"        /* for RUMORFILE and BSD (index) */
       6: #define CHARSZ  8           /* number of bits in a char */
       7: extern long *alloc();
       8: extern char *index();
       9: int n_rumors = 0;
      10: int n_used_rumors = -1;
      11: char *usedbits;
      12:
      13: init_rumors(rumf) register FILE *rumf; {
      14: register int i;
      15:     n_used_rumors = 0;
      16:     while(skipline(rumf)) n_rumors++;
      17:     rewind(rumf);
      18:     i = n_rumors/CHARSZ;
      19:     usedbits = (char *) alloc((unsigned)(i+1));
      20:     for( ; i>=0; i--) usedbits[i] = 0;
      21: }
      22:
      23: skipline(rumf) register FILE *rumf; {
      24: char line[COLNO];
      25:     while(1) {
      26:         if(!fgets(line, sizeof(line), rumf)) return(0);
      27:         if(index(line, '\n')) return(1);
      28:     }
      29: }
      30:
      31: outline(rumf) register FILE *rumf; {
      32: char line[COLNO];
      33: register char *ep;
      34:     if(!fgets(line, sizeof(line), rumf)) return;
      35:     if((ep = index(line, '\n')) != 0) *ep = 0;
      36:     pline("This cookie has a scrap of paper inside! It reads: ");
      37:     pline(line);
      38: }
      39:
      40: outrumor(){
      41: register int rn,i;
      42: register FILE *rumf;
      43:     if(n_rumors <= n_used_rumors ||
      44:       (rumf = fopen(RUMORFILE, "r")) == (FILE *) 0) return;
      45:     if(n_used_rumors < 0) init_rumors(rumf);
      46:     if(!n_rumors) goto none;
      47:     rn = rn2(n_rumors - n_used_rumors);
      48:     i = 0;
      49:     while(rn || used(i)) {
      50:         (void) skipline(rumf);
      51:         if(!used(i)) rn--;
      52:         i++;
      53:     }
      54:     usedbits[i/CHARSZ] |= (1 << (i % CHARSZ));
      55:     n_used_rumors++;
      56:     outline(rumf);
      57: none:
      58:     (void) fclose(rumf);
      59: }
      60:
      61: used(i) register int i; {
      62:     return(usedbits[i/CHARSZ] & (1 << (i % CHARSZ)));
      63: }

#### Defined functions

init_rumors defined in line 13; used 1 times

- in line 45

outline defined in line 31; used 1 times

- in line 56

outrumor defined in line 40; used 1 times

- in /usr/src/games/hack/hack.eat.c line 234

skipline defined in line 23; used 2 times

- in line 16, 50

used defined in line 61; used 2 times

- in line 49-51(2)

#### Defined variables

n_rumors defined in line 9; used 5 times

- in line 16-18(2), 43-47(3)

n_used_rumors defined in line 10; used 5 times

- in line 15, 43-47(3), 55

usedbits defined in line 11; used 4 times

- in line 19-20(2), 54, 62

#### Defined macros

CHARSZ defined in line 6; used 5 times

- in line 18, 54(2), 62(2)

Last modified: 1985-10-01 Generated: 2016-12-26 | Generated by src2html V0.67 page hit count: 706 |