int main() {
uint16 desired = TARGET;
scramble_item mst, current;
uint8 found;
for (int i = 7; i >= 0; i--) {
printf("phase @d: desired @x\n", i, desired);
found = 0;
for (uint32 j = 0; j <= UINT16_MAX; j++) {
current.i = j >> STATE_BITS;
mst.i = j & TARGET_MASK;
switch (i) {
case 0:
mst = phase_0(current, mst);
break;
case 1:
mst = phase_1(mst, current);
break;
case 2:
mst = phase_2(current, mst);
break;
case 3:
mst = phase_3(mst, current);
break;
case 4:
mst = phase_4(current, mst);
break;
case 5:
mst = phase_5(mst, current);
break;
case 6:
mst = phase_6(current, mst);
break;
case 7:
mst = phase_7(mst, current);
break;
default:
_terminate(-1);
}
mst.i &= TARGET_MASK;
printf("\r@x", mst.i);
if (mst.i == desired) {
printf("\rinput @x instate @x\n", current.i, j & TARGET_MASK);
found = 1;
desired = j & TARGET_MASK;
break;
}
}
if (!found) {
printf("\ndidn't find :( :( :( \n");
_terminate(-1);
}
}
}
void scramble_add(uint16 payload) {
scramble_item current;
current.i = payload;
if (scramble_steps == 0) {
state.i = 0;
}
switch (scramble_steps) {
case 0:
state = phase_0(current, state);
break;
case 1:
state = phase_1(state, current);
break;
case 2:
state = phase_2(current, state);
break;
case 3:
state = phase_3(state, current);
break;
case 4:
state = phase_4(current, state);
break;
case 5:
state = phase_5(state, current);
break;
case 6:
state = phase_6(current, state);
break;
case 7:
state = phase_7(state, current);
break;
default:
_terminate(-1);
}
state.i &= TARGET_MASK;
scramble_steps++;
}
int main(int argc, char *argv[])
{
char *input;
/* Note to self: remember to port this bomb to Windows and put a
* fantastic GUI on it. */
/* When run with no arguments, the bomb reads its input lines
* from standard input. */
if (argc == 1) {
infile = stdin;
}
/* When run with one argument <file>, the bomb reads from <file>
* until EOF, and then switches to standard input. Thus, as you
* defuse each phase, you can add its defusing string to <file> and
* avoid having to retype it. */
else if (argc == 2) {
if (!(infile = fopen(argv[1], "r"))) {
printf("%s: Error: Couldn't open %s\n", argv[0], argv[1]);
exit(8);
}
}
/* You can't call the bomb with more than 1 command line argument. */
else {
printf("Usage: %s [<input_file>]\n", argv[0]);
exit(8);
}
/* Do all sorts of secret stuff that makes the bomb harder to defuse. */
initialize_bomb();
printf("Welcome to my fiendish little bomb. You have 6 phases with\n");
printf("which to blow yourself up. Have a nice day!\n");
/* Hmm... Six phases must be more secure than one phase! */
input = read_line(); /* Get input */
phase_1(input); /* Run the phase */
phase_defused(); /* Drat! They figured it out!
* Let me know how they did it. */
printf("Phase 1 defused. How about the next one?\n");
/* The second phase is harder. No one will ever figure out
* how to defuse this... */
input = read_line();
phase_2(input);
phase_defused();
printf("That's number 2. Keep going!\n");
/* I guess this is too easy so far. Some more complex code will
* confuse people. */
input = read_line();
phase_3(input);
phase_defused();
printf("Halfway there!\n");
/* Oh yeah? Well, how good is your math? Try on this saucy problem! */
input = read_line();
phase_4(input);
phase_defused();
printf("So you got that one. Try this one.\n");
/* Round and 'round in memory we go, where we stop, the bomb blows! */
input = read_line();
phase_5(input);
phase_defused();
printf("Good work! On to the next...\n");
/* This phase will never be used, since no one will get past the
* earlier ones. But just in case, make this one extra hard. */
input = read_line();
phase_6(input);
phase_defused();
/* Wow, they got it! But isn't something... missing? Perhaps
* something they overlooked? Mua ha ha ha ha! */
return 0;
}
int main(int argc, char *argv[])
{
char *input;
/* When run with no arguments, the bomb reads its input lines
* from standard input. */
if (argc == 1) {
infile = stdin;
}
/* When run with one argument <file>, the bomb reads from <file>
* until EOF, and then switches to standard input. Thus, as you
* defuse each phase, you can add its defusing string to <file> and
* avoid having to retype it. */
else if (argc == 2) {
if (!(infile = fopen(argv[1], "r"))) {
printf("%s: Error: Couldn't open %s\n", argv[0], argv[1]);
exit(8);
}
}
/* You can't call the bomb with more than 1 command line argument. */
else {
printf("Usage: %s [<input_file>]\n", argv[0]);
exit(8);
}
initialize_bomb();
printf("Welcome to your cs154 \"bomb\". It has 6 phases, which must be\n");
printf("\"defused\" in sequence by entering correct strings. Good luck.\n");
input = read_line(); /* Get input */
phase_1(input); /* Run the phase */
phase_defused();
printf("Phase 1 defused. How about the next one?\n");
input = read_line();
phase_2(input);
phase_defused();
printf("Phase 2 done. Keep going!\n");
input = read_line();
phase_3(input);
phase_defused();
printf("Phase 3 cleared. Halfway there!\n");
input = read_line();
phase_4(input);
phase_defused();
printf("Phase 4 passed. Try this one.\n");
input = read_line();
phase_5(input);
phase_defused();
printf("Phase 5 finished. On to the next...\n");
input = read_line();
phase_6(input);
phase_defused();
/* All phases done. But isn't something... missing? Something secret,
something extra that might have been overlooked? */
return 0;
}