//...
else {
                        student_node.id = get_next_id(student);
                        fclose(student);
                        printf(inp "(Skipped)\n\n");
                        printf("Fullname: Maximum 64 characters.\n");
                        printf(inp);
                        fgets(input, 63, stdin);
                        printf(ok);
                        strcpy(student_node.fullname, input);
                        printf("Form: Maximum 3 characters.\n");
                        printf(inp);
                        fgets(input, 4, stdin);
                        printf(ok);
                        strcpy(student_node.form, input);
                        printf("Username: Maximum 30 characters.\n");
                        printf(inp);
                        fgets(input, 30, stdin); // gets ignored
                        printf(ok);
                        strcpy(student_node.username, input);
                        printf("Password: Encrypted automatically. Maximum 30 characters.\n");
                        printf(inp);
                        fgets(input, 30, stdin);
                        printf(ok);
                        encode(input, encoded);
                        strcpy(student_node.password, encoded);