bomb 36. solve by using gdb debugger. and solve phase 2-6

* Dr. Evil's Insidious Bomb, Version 1.1 * Copyright 2011, Dr. Evil Incorporated. All rights reserved. * * LICENSE: * * Dr. Evil Incorporated (the PERPETRATOR) hereby grants you (the * VICTIM) explicit permission to use this bomb (the BOMB). This is a * time limited license, which expires on the death of the VICTIM. * The PERPETRATOR takes no responsibility for damage, frustration, * insanity, bug-eyes, carpal-tunnel syndrome, loss of sleep, or other * harm to the VICTIM. Unless the PERPETRATOR wants to take credit, * that is. The VICTIM may not distribute this bomb source code to * any enemies of the PERPETRATOR. No VICTIM may debug, * reverse-engineer, run "strings" on, decompile, decrypt, or use any * other technique to gain knowledge of and defuse the BOMB. BOMB * proof clothing may not be worn when handling this program. The * PERPETRATOR will not apologize for the PERPETRATOR's poor sense of * humor. This license is null and void where the BOMB is prohibited * by law. ***************************************************************************/ #include #include #include "support.h" #include "phases.h"

#include #include #include "support.h" #include "phases.h"

/* * Note to self: Remember to erase this file so my victims will have no * idea what is going on, and so they will all blow up in a * spectaculary fiendish explosion. -- Dr. Evil */

FILE *infile;

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. */

*/

FILE *infile;

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 , the bomb reads from * until EOF, and then switches to standard input. Thus, as you * defuse each phase, you can add its defusing string to and * avoid having to retype it. */ else if (argc == 2) { if (!(infile = fopen(argv[1], "r"))) { printf("%s: Error: Couldn't open %s ", argv[0], argv[1]); 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 "); printf("which to blow yourself up. Have a nice day! ");

/* 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? ");

/* 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! ");

e Edit Options Buffers Tools C Help /* 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! ");

/* 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. ");

/* 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... ");

/* 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? Perhap