disable memory dump writer

#include <stdio.h>
#include <string.h>
#include <sys/resource.h>

// setting Zero to prevents the process writing any memory dump to disk
void spc_limit_core(void)
{
  struct rlimit rlim;

  rlim.rlim_cur = 0;
  rlim.rlim_max = 0;
  setrlimit(RLIMIT_CORE, &rlim);

}

// overflow + format string
int main(int argc,char **argv)
{
 spc_limit_core();

 char secret_key[]="1234";
 char var[]="abc";

 strcat(var,argv[1]);
 printf(var);


 return 0;
}