// overflow.c
#include <stdio.h>
do_stuff(char *temp1) {
 char name[400];
 strcpy(name, temp1);
 printf("Subroutine output: %s\n",name);
}
main(int argc,char * argv[]) {
 do_stuff(argv[1]);
 printf("Main output: %s\n",argv[1]);
}