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

int main(int argc, char *argv[])
{
    // creating buffer in heap
    char *buffer = (char*)malloc(16);

    // copying the cli argument
    strcpy(buffer, argv[1]); // this is the dangerous line

    printf("buffer size: 16\ninput size: %d\n", strlen(buffer));

    // deallocating buffer
    free(buffer);

    // return 0
    return 0;

}