zwned

#include <stdio.h>
#include <string.h>

int main(int argc, char **argv) {

	char buf[128];

	if(argc < 2) return 1;

	strcpy(buf, argv[1]);

zwned

#include <stdlib.h>

int main() {
	
	system("id");

	return 0;
}

zwned

#include <stdio.h>
#include <unistd.h>
#include <string.h>

int good(int addr) {
	printf("Address of hmm: %p\n", addr);
}
		
int hmm() {
	printf("Win.\n");

zwned

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>


#define answer 3.141593

void main(int argc, char **argv) {

	float a = (argc - 2)?: strtod(argv[1], 0);

zwned

#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <setjmp.h>

void catcher(int a)
{
        setresuid(geteuid(),geteuid(),geteuid());
	printf("WIN!\n");
        system("/bin/sh");

zwned

cat /levels/level05
#!/usr/bin/env python
import logging
import json
import optparse
import os
import pickle
import random
import re
import string

zwned

#include <stdio .h>
#include <string .h>
#include <stdlib .h>

void fun(char *str)
{
  char buf[1024];
  strcpy(buf, str);
}

zwned

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>

#define NUM_FNS 4

typedef int (*fn_ptr)(const char *);

int to_upper(const char *str)

zwned

#include <stdio.h>

int main(int argc, char **argv)
{
  printf("Congratulations on making it to level02!\n");
  printf("Point your browser to http://ctf.stri.pe/level02.php for the next challenge.\n");
}

zwned

#include <stdio.h>
#include <stdlib.h>

int main(int argc, char **argv)
{
        printf("Current time: ");
          fflush(stdout);
            system("date");
              return 0;
}