1 void welcome() { printf("Welcome!\n"); exit(0); }

     2 void goodbye() { printf("Wrong identity, exiting!\n"); exit(1); }

     3 

     4 int main(){

     5   char name[8];

     6   char pw[8]; 

     7 

     8   printf("login: "); 

     9   get_line(name);

    10   printf("password: "); 

    11   get_line(pw);

    12 

    13   if(match(name, pw) == 0)

    14     welcome();

    15   else

    16     goodbye();

    17 }