vulnerable-prog.c

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

void greeting(char *arg) {
  char name[68];

  strcpy(name, arg);

  printf("welcome our agent %s, and Goodbye!\n", name);
}

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

  if (argc != 2) {
    fprintf(stderr, "Syntax: %s <yourname>\n", argv[0]);
    exit(1);
  }
	
   printf("process %s \n",argv[0]);
   greeting(argv[1]);
}