JNIEXPORT void JNICALL Java_org_apache_commons_crypto_random_OpenSslCryptoRandomNative_initSR()

in src/main/native/org/apache/commons/crypto/random/OpenSslCryptoRandomNative.c [77:105]

• 25 lines of code
• 3 McCabe index (conditional complexity)

JNIEXPORT void JNICALL Java_org_apache_commons_crypto_random_OpenSslCryptoRandomNative_initSR (JNIEnv *env, jclass clazz)
{
  HMODULE openssl = open_library(env); // calls THROW and returns 0 on error

  if (!openssl) {
    return;
  }

  LOAD_DYNAMIC_SYMBOL_FALLBACK(__dlsym_OpenSSL_version_num, dlsym_OpenSSL_version_num, env, openssl, "OpenSSL_version_num", "SSLeay");
  // Reject attempt to use obsolete version
  if (dlsym_OpenSSL_version_num() < VERSION_1_1_X) {
    THROW(env, "java/lang/UnsatisfiedLinkError", "Versions below 1.1 are not supported");
    return;
  }
#ifdef UNIX
  dlerror();  // Clear any existing error
#endif
  LOAD_DYNAMIC_SYMBOL(__dlsym_CRYPTO_malloc, dlsym_CRYPTO_malloc, env, openssl, "CRYPTO_malloc");
  LOAD_DYNAMIC_SYMBOL(__dlsym_CRYPTO_free, dlsym_CRYPTO_free, env, openssl, "CRYPTO_free");
  LOAD_DYNAMIC_SYMBOL(__dlsym_ENGINE_by_id, dlsym_ENGINE_by_id, env, openssl, "ENGINE_by_id");
  LOAD_DYNAMIC_SYMBOL(__dlsym_ENGINE_init, dlsym_ENGINE_init, env, openssl, "ENGINE_init");
  LOAD_DYNAMIC_SYMBOL(__dlsym_ENGINE_set_default, dlsym_ENGINE_set_default, env, openssl, "ENGINE_set_default");
  LOAD_DYNAMIC_SYMBOL(__dlsym_ENGINE_finish, dlsym_ENGINE_finish, env, openssl, "ENGINE_finish");
  LOAD_DYNAMIC_SYMBOL(__dlsym_ENGINE_free, dlsym_ENGINE_free, env, openssl, "ENGINE_free");
  LOAD_DYNAMIC_SYMBOL(__dlsym_RAND_bytes, dlsym_RAND_bytes, env, openssl, "RAND_bytes");
  LOAD_DYNAMIC_SYMBOL(__dlsym_ERR_get_error, dlsym_ERR_get_error, env, openssl, "ERR_get_error");

  openssl_rand_init();
}