有什么方法可以绕过这里的密码检查吗？

Question

static int checkPassword(char* user_pw) {

  char dummy[128];
  int accept = 0;
  char pw[8];
  char len;
  char* correct_pw = "xf35+";
  memset(pw, 0, sizeof(pw));
  memset(dummy, 0, sizeof(dummy));

  len = strlen(user_pw);
  if (len < 8) {
    strcpy(pw, user_pw);
  }
  if (strcmp(pw, correct_pw) == 0) {
    accept = 1;
  }
  return accept;
}


int main(int argc, char* argv[]) {
  // Where argv[3] should be password
  // ...
  if (strlen(argv[3]) > 128) {
    fprintf(stderr, "Password is too long!\n");
    return 1;
  }

  if (checkPassword(argv[3]) == 0) {
    fprintf(stderr, "Password is incorrect!\n");
    return 1;
  }
  // ...
}

The passwrod here is hard-coded but is there any way to bypass the password check? I noticed that "len" is declared as a char but still don't know exactly how to solve this