text: /*
   * phoenix/stack-one, by https://exploit.education
   *
   * The aim is to change the contents of the changeme variable to 0x496c5962
   *
   * Did you hear about the kid napping at the local school?
   * It's okay, they woke up.
   *
   */
  
  #include <err.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #include <unistd.h>
  
  #define BANNER \
    "Welcome to phoenix/stack-one, brought to you by https://exploit.education"
  
  int main(int argc, char **argv) {
    volatile int changeme;
    char buffer[64];
  
    printf("%s\n", BANNER);
  
    if (argc < 2) {
      errx(1, "specify an argument, to be copied into the \"buffer\"");
    }
  
    changeme = 0;
    strcpy(buffer, argv[1]);
  
    if (changeme == 0x496c5962) {
      puts("Well done, you have successfully set changeme to the correct value");
    } else {
      printf("Getting closer! changeme is currently 0x%08x, we want 0x496c5962\n",
          changeme);
    }
  
    exit(0);
  }
  
  