int main(int argc, char *argv[])
{
int nattempts = 0, n, best = 1025, threshold = THRESHOLD;
u08b_t inbuf[MAX_MSG_LEN], hashbuf[HASHLEN];
u08b_t *iter;
srand(time(NULL));
for (;;) {
iter = &inbuf[0];
*iter++ = get_random_char();
*iter = '\0';
for (n = 0; n < ITERS_PER_HUNK; ++n) {
int nbits;
get_hash(inbuf, hashbuf);
nbits = get_bit_diff(hashbuf, target, HASHLEN);
if (nbits < best) {
best = nbits;
iter = &inbuf[0];
if (nbits < threshold) {
puts("\n\nNew best hash found!");
puts("---BEGIN STRING:---");
puts((char *)inbuf);
puts("---END STRING---");
printf("(should be off by %d)\n", nbits);
puts("hex digest of computed hash:");
print_hash_hex_digest(hashbuf, HASHLEN);
threshold = nbits;
puts("Now attempting to upload to the xkcd server...");
sendit(inbuf);
puts("Done!");
}
}
*iter++ = get_random_char();
*iter = '\0';
nattempts++;
}
printf("\r%d hashes compared. Best so far is %d ",
nattempts, best);
}
return 0;
}
/*
* ------------------------------------------------------------------------
* EXPAND_ARG
* This is a hack of act() in comm.c. I've added some safety guards,
* so that missing or invalid $-codes do not crash the server
* ------------------------------------------------------------------------
*/
void expand_arg( char *buf,
const char *format,
CHAR_DATA *mob, CHAR_DATA *ch,
const void *arg1, const void *arg2, CHAR_DATA *rch )
{
static char * const he_she [] = { "it", "he", "she" };
static char * const him_her [] = { "it", "him", "her" };
static char * const his_her [] = { "its", "his", "her" };
const char *someone = "someone";
const char *something = "something";
const char *someones = "someone's";
char fname[MAX_INPUT_LENGTH];
CHAR_DATA *vch = (CHAR_DATA *) arg2;
OBJ_DATA *obj1 = (OBJ_DATA *) arg1;
OBJ_DATA *obj2 = (OBJ_DATA *) arg2;
const char *str;
const char *i;
char *point;
/*
* Discard null and zero-length messages.
*/
if ( format == NULL || format[0] == '\0' )
return;
point = buf;
str = format;
while ( *str != '\0' )
{
if ( *str != '$' )
{
*point++ = *str++;
continue;
}
++str;
switch ( *str )
{
default: bug( "Expand_arg: bad code %d.", *str );
i = " <@@@> "; break;
case 'i':
one_argument( mob->name, fname );
i = fname; break;
case 'I': i = mob->short_descr; break;
case 'n':
i = someone;
if ( ch != NULL && can_see( mob, ch ) )
{
one_argument( ch->name, fname );
i = capitalize(fname);
} break;
case 'N':
i = (ch != NULL && can_see( mob, ch ) )
? ( IS_NPC( ch ) ? ch->short_descr : ch->name )
: someone; break;
case 't':
i = someone;
if ( vch != NULL && can_see( mob, vch ) )
{
one_argument( vch->name, fname );
i = capitalize(fname);
} break;
case 'T':
i = (vch != NULL && can_see( mob, vch ))
? ( IS_NPC( vch ) ? vch->short_descr : vch->name )
: someone; break;
case 'r':
if ( rch == NULL )
rch = get_random_char( mob );
i = someone;
if( rch != NULL && can_see( mob, rch ) )
{
one_argument( rch->name, fname );
i = capitalize(fname);
} break;
case 'R':
if ( rch == NULL )
rch = get_random_char( mob );
i = ( rch != NULL && can_see( mob, rch ) )
? ( IS_NPC( ch ) ? ch->short_descr : ch->name )
:someone; break;
case 'q':
i = someone;
if ( mob->mprog_target != NULL && can_see( mob, mob->mprog_target ) )
{
one_argument( mob->mprog_target->name, fname );
i = capitalize( fname );
} break;
case 'Q':
i = (mob->mprog_target != NULL && can_see( mob, mob->mprog_target ))
? ( IS_NPC( mob->mprog_target ) ? mob->mprog_target->short_descr : mob->mprog_target->name )
: someone; break;
case 'j': i = he_she [URANGE(0, mob->sex, 2)]; break;
case 'e':
i = (ch != NULL && can_see( mob, ch ))
? he_she [URANGE(0, ch->sex, 2)]
: someone; break;
case 'E':
i = (vch != NULL && can_see( mob, vch ))
? he_she [URANGE(0, vch->sex, 2)]
: someone; break;
case 'J':
i = (rch != NULL && can_see( mob, rch ))
? he_she [URANGE(0, rch->sex, 2)]
: someone; break;
case 'X':
i = (mob->mprog_target != NULL && can_see( mob, mob->mprog_target))
? he_she [URANGE(0, mob->mprog_target->sex, 2)]
: someone; break;
case 'k': i = him_her [URANGE(0, mob->sex, 2)]; break;
case 'm':
i = (ch != NULL && can_see( mob, ch ))
? him_her [URANGE(0, ch ->sex, 2)]
: someone; break;
case 'M':
i = (vch != NULL && can_see( mob, vch ))
? him_her [URANGE(0, vch ->sex, 2)]
: someone; break;
case 'K':
if ( rch == NULL )
rch = get_random_char( mob );
i = (rch != NULL && can_see( mob, rch ))
? him_her [URANGE(0, rch ->sex, 2)]
: someone; break;
case 'Y':
i = (mob->mprog_target != NULL && can_see( mob, mob->mprog_target ))
? him_her [URANGE(0, mob->mprog_target->sex, 2)]
: someone; break;
case 'l': i = his_her [URANGE(0, mob ->sex, 2)]; break;
case 's':
i = (ch != NULL && can_see( mob, ch ))
? his_her [URANGE(0, ch ->sex, 2)]
: someones; break;
case 'S':
i = (vch != NULL && can_see( mob, vch ))
? his_her [URANGE(0, vch ->sex, 2)]
: someones; break;
case 'L':
if ( rch == NULL )
rch = get_random_char( mob );
i = ( rch != NULL && can_see( mob, rch ) )
? his_her [URANGE(0, rch ->sex, 2)]
: someones; break;
case 'Z':
i = (mob->mprog_target != NULL && can_see( mob, mob->mprog_target ))
? his_her [URANGE(0, mob->mprog_target->sex, 2)]
: someones; break;
case 'o':
i = something;
if ( obj1 != NULL && can_see_obj( mob, obj1 ) )
{
one_argument( obj1->name, fname );
i = fname;
} break;
case 'O':
i = (obj1 != NULL && can_see_obj( mob, obj1 ))
? obj1->short_descr
: something; break;
case 'p':
i = something;
if ( obj2 != NULL && can_see_obj( mob, obj2 ) )
{
one_argument( obj2->name, fname );
i = fname;
} break;
case 'P':
i = (obj2 != NULL && can_see_obj( mob, obj2 ))
? obj2->short_descr
: something; break;
}
++str;
while ( ( *point = *i ) != '\0' )
++point, ++i;
}
*point = '\0';
return;
}
/* ---------------------------------------------------------------------
* CMD_EVAL
* This monster evaluates an if/or/and statement
* There are five kinds of statement:
* 1) keyword and value (no $-code) if random 30
* 2) keyword, comparison and value if people > 2
* 3) keyword and actor if isnpc $n
* 4) keyword, actor and value if carries $n sword
* 5) keyword, actor, comparison and value if level $n >= 10
*
*----------------------------------------------------------------------
*/
int cmd_eval( sh_int vnum, char *line, int check,
CHAR_DATA *mob, CHAR_DATA *ch,
const void *arg1, const void *arg2, CHAR_DATA *rch )
{
CHAR_DATA *lval_char = mob;
CHAR_DATA *vch = (CHAR_DATA *) arg2;
OBJ_DATA *obj1 = (OBJ_DATA *) arg1;
OBJ_DATA *obj2 = (OBJ_DATA *) arg2;
OBJ_DATA *lval_obj = NULL;
char *original, buf[MAX_INPUT_LENGTH], code;
int lval = 0, oper = 0, rval = -1;
original = line;
line = one_argument( line, buf );
if ( buf[0] == '\0' || mob == NULL )
return FALSE;
/*
* If this mobile has no target, let's assume our victim is the one
*/
if ( mob->mprog_target == NULL )
mob->mprog_target = ch;
switch ( check )
{
/*
* Case 1: keyword and value
*/
case CHK_RAND:
return( atoi( buf ) < number_percent() );
case CHK_MOBHERE:
if ( is_number( buf ) )
return( get_mob_vnum_room( mob, atoi(buf) ) );
else
return( (bool) (get_char_room( mob, buf) != NULL) );
case CHK_OBJHERE:
if ( is_number( buf ) )
return( get_obj_vnum_room( mob, atoi(buf) ) );
else
return( (bool) (get_obj_here( mob, buf) != NULL) );
case CHK_MOBEXISTS:
return( (bool) (get_char_world( mob, buf) != NULL) );
case CHK_OBJEXISTS:
return( (bool) (get_obj_world( mob, buf) != NULL) );
/*
* Case 2 begins here: We sneakily use rval to indicate need
* for numeric eval...
*/
case CHK_PEOPLE:
rval = count_people_room( mob, 0 ); break;
case CHK_PLAYERS:
rval = count_people_room( mob, 1 ); break;
case CHK_MOBS:
rval = count_people_room( mob, 2 ); break;
case CHK_CLONES:
rval = count_people_room( mob, 3 ); break;
case CHK_ORDER:
rval = get_order( mob ); break;
case CHK_HOUR:
rval = time_info.hour; break;
default:;
}
/*
* Case 2 continued: evaluate expression
*/
if ( rval >= 0 )
{
if ( (oper = keyword_lookup( fn_evals, buf )) < 0 )
{
sprintf( buf, "Cmd_eval: prog %d syntax error(2) '%s'",
vnum, original );
bug( buf, 0 );
return FALSE;
}
one_argument( line, buf );
lval = rval;
rval = atoi( buf );
return( num_eval( lval, oper, rval ) );
}
/*
* Case 3,4,5: Grab actors from $* codes
*/
if ( buf[0] != '$' || buf[1] == '\0' )
{
sprintf( buf, "Cmd_eval: prog %d syntax error(3) '%s'",
vnum, original );
bug( buf, 0 );
return FALSE;
}
else
code = buf[1];
switch( code )
{
case 'i':
lval_char = mob; break;
case 'n':
lval_char = ch; break;
case 't':
lval_char = vch; break;
case 'r':
lval_char = rch == NULL ? get_random_char( mob ) : rch ; break;
case 'o':
lval_obj = obj1; break;
case 'p':
lval_obj = obj2; break;
case 'q':
lval_char = mob->mprog_target; break;
default:
sprintf( buf, "Cmd_eval: prog %d syntax error(4) '%s'",
vnum, original );
bug( buf, 0 );
return FALSE;
}
/*
* From now on, we need an actor, so if none was found, bail out
*/
if ( lval_char == NULL && lval_obj == NULL )
return FALSE;
/*
* Case 3: Keyword, comparison and value
*/
switch( check )
{
case CHK_ISPC:
return( lval_char != NULL && !IS_NPC( lval_char ) );
case CHK_ISNPC:
return( lval_char != NULL && IS_NPC( lval_char ) );
case CHK_ISGOOD:
return( lval_char != NULL && IS_GOOD( lval_char ) );
case CHK_ISEVIL:
return( lval_char != NULL && IS_EVIL( lval_char ) );
case CHK_ISNEUTRAL:
return( lval_char != NULL && IS_NEUTRAL( lval_char ) );
case CHK_ISIMMORT:
return( lval_char != NULL && IS_IMMORTAL( lval_char ) );
case CHK_ISCHARM: /* A relic from MERC 2.2 MOBprograms */
return( lval_char != NULL && IS_AFFECTED( lval_char, AFF_CHARM ) );
case CHK_ISFOLLOW:
return( lval_char != NULL && lval_char->master != NULL
&& lval_char->master->in_room == lval_char->in_room );
case CHK_ISACTIVE:
return( lval_char != NULL && lval_char->position > POS_SLEEPING );
case CHK_ISDELAY:
return( lval_char != NULL && lval_char->mprog_delay > 0 );
case CHK_ISVISIBLE:
switch( code )
{
default :
case 'i':
case 'n':
case 't':
case 'r':
case 'q':
return( lval_char != NULL && can_see( mob, lval_char ) );
case 'o':
case 'p':
return( lval_obj != NULL && can_see_obj( mob, lval_obj ) );
}
case CHK_HASTARGET:
return( lval_char != NULL && lval_char->mprog_target != NULL
&& lval_char->in_room == lval_char->mprog_target->in_room );
case CHK_ISTARGET:
return( lval_char != NULL && mob->mprog_target == lval_char );
default:;
}
/*
* Case 4: Keyword, actor and value
*/
line = one_argument( line, buf );
switch( check )
{
case CHK_AFFECTED:
return( lval_char != NULL
&& IS_SET(lval_char->affected_by, flag_lookup(buf, affect_flags)) );
case CHK_ACT:
return( lval_char != NULL
&& IS_SET(lval_char->act, flag_lookup(buf, act_flags)) );
case CHK_IMM:
return( lval_char != NULL
&& IS_SET(lval_char->imm_flags, flag_lookup(buf, imm_flags)) );
case CHK_OFF:
return( lval_char != NULL
&& IS_SET(lval_char->off_flags, flag_lookup(buf, off_flags)) );
case CHK_CARRIES:
if ( is_number( buf ) )
return( lval_char != NULL && has_item( lval_char, atoi(buf), -1, FALSE ) );
else
return( lval_char != NULL && (get_obj_carry( lval_char, buf ) != NULL) );
case CHK_WEARS:
if ( is_number( buf ) )
return( lval_char != NULL && has_item( lval_char, atoi(buf), -1, TRUE ) );
else
return( lval_char != NULL && (get_obj_wear( lval_char, buf ) != NULL) );
case CHK_HAS:
return( lval_char != NULL && has_item( lval_char, -1, item_lookup(buf), FALSE ) );
case CHK_USES:
return( lval_char != NULL && has_item( lval_char, -1, item_lookup(buf), TRUE ) );
case CHK_NAME:
switch( code )
{
default :
case 'i':
case 'n':
case 't':
case 'r':
case 'q':
return( lval_char != NULL && is_name( buf, lval_char->name ) );
case 'o':
case 'p':
return( lval_obj != NULL && is_name( buf, lval_obj->name ) );
}
case CHK_POS:
return( lval_char != NULL && lval_char->position == position_lookup( buf ) );
case CHK_CLAN:
return( lval_char != NULL && lval_char->clan == clan_lookup( buf ) );
case CHK_RACE:
return( lval_char != NULL && lval_char->race == race_lookup( buf ) );
case CHK_OBJTYPE:
return( lval_obj != NULL && lval_obj->item_type == item_lookup( buf ) );
default:;
}
/*
* Case 5: Keyword, actor, comparison and value
*/
if ( (oper = keyword_lookup( fn_evals, buf )) < 0 )
{
sprintf( buf, "Cmd_eval: prog %d syntax error(5): '%s'",
vnum, original );
bug( buf, 0 );
return FALSE;
}
one_argument( line, buf );
rval = atoi( buf );
switch( check )
{
case CHK_VNUM:
switch( code )
{
default :
case 'i':
case 'n':
case 't':
case 'r':
case 'q':
if( lval_char != NULL && IS_NPC( lval_char ) )
lval = lval_char->pIndexData->vnum;
break;
case 'o':
case 'p':
if ( lval_obj != NULL )
lval = lval_obj->pIndexData->vnum;
}
break;
case CHK_HPCNT:
if ( lval_char != NULL ) lval = (lval_char->hit * 100)/(UMAX(1,lval_char->max_hit)); break;
case CHK_ROOM:
if ( lval_char != NULL && lval_char->in_room != NULL )
lval = lval_char->in_room->vnum; break;
case CHK_SEX:
if ( lval_char != NULL ) lval = lval_char->sex; break;
case CHK_LEVEL:
if ( lval_char != NULL ) lval = lval_char->level; break;
case CHK_ALIGN:
if ( lval_char != NULL ) lval = lval_char->alignment; break;
case CHK_MONEY: /* Money is converted to silver... */
if ( lval_char != NULL )
lval = lval_char->gold + (lval_char->silver * 100); break;
case CHK_OBJVAL0:
if ( lval_obj != NULL ) lval = lval_obj->value[0]; break;
case CHK_OBJVAL1:
if ( lval_obj != NULL ) lval = lval_obj->value[1]; break;
case CHK_OBJVAL2:
if ( lval_obj != NULL ) lval = lval_obj->value[2]; break;
case CHK_OBJVAL3:
if ( lval_obj != NULL ) lval = lval_obj->value[3]; break;
case CHK_OBJVAL4:
if ( lval_obj != NULL ) lval = lval_obj->value[4]; break;
case CHK_GRPSIZE:
if( lval_char != NULL ) lval = count_people_room( lval_char, 4 ); break;
default:
return FALSE;
}
return( num_eval( lval, oper, rval ) );
}