JNIEXPORT void JNICALL Java_org_apache_commons_crypto_random_OpenSslCryptoRandomNative_initSR()

in src/main/native/org/apache/commons/crypto/random/OpenSslCryptoRandomNative.c [101:163]

• 59 lines of code
• 4 McCabe index (conditional complexity)

JNIEXPORT void JNICALL Java_org_apache_commons_crypto_random_OpenSslCryptoRandomNative_initSR (JNIEnv *env, jclass clazz)
{
  char msg[1000];
#ifdef UNIX
  void *openssl = open_library(env);
#endif

#ifdef WINDOWS
  HMODULE openssl = open_library(env);
#endif

  if (!openssl) {
#ifdef UNIX
    snprintf(msg, sizeof(msg), "Cannot load %s (%s)!", COMMONS_CRYPTO_OPENSSL_LIBRARY, dlerror());
#endif
#ifdef WINDOWS
    snprintf(msg, sizeof(msg), "Cannot load %s (%d)!", COMMONS_CRYPTO_OPENSSL_LIBRARY, GetLastError());
#endif
    THROW(env, "java/lang/UnsatisfiedLinkError", msg);
    return;
  }
#ifdef UNIX
  LOAD_DYNAMIC_SYMBOL_FALLBACK(dlsym_OpenSSL_version_num, env, openssl, "OpenSSL_version_num", "SSLeay");
  dlerror();  // Clear any existing error
  LOAD_DYNAMIC_SYMBOL(dlsym_CRYPTO_malloc, env, openssl, "CRYPTO_malloc");
  LOAD_DYNAMIC_SYMBOL(dlsym_CRYPTO_free, env, openssl, "CRYPTO_free");
  LOAD_DYNAMIC_SYMBOL(dlsym_ENGINE_by_id, env, openssl, "ENGINE_by_id");
  LOAD_DYNAMIC_SYMBOL(dlsym_ENGINE_init, env, openssl, "ENGINE_init");
  LOAD_DYNAMIC_SYMBOL(dlsym_ENGINE_set_default, env, openssl, "ENGINE_set_default");
  LOAD_DYNAMIC_SYMBOL(dlsym_ENGINE_finish, env, openssl, "ENGINE_finish");
  LOAD_DYNAMIC_SYMBOL(dlsym_ENGINE_free, env, openssl, "ENGINE_free");
  LOAD_DYNAMIC_SYMBOL(dlsym_RAND_bytes, env, openssl, "RAND_bytes");
  LOAD_DYNAMIC_SYMBOL(dlsym_ERR_get_error, env, openssl, "ERR_get_error");
  if (dlsym_OpenSSL_version_num() < VERSION_1_1_X) {
    LOAD_DYNAMIC_SYMBOL(dlsym_CRYPTO_num_locks, env, openssl, "CRYPTO_num_locks");
    LOAD_DYNAMIC_SYMBOL(dlsym_CRYPTO_set_id_callback, env, openssl, "CRYPTO_set_id_callback");
    LOAD_DYNAMIC_SYMBOL(dlsym_CRYPTO_set_locking_callback, env, openssl, "CRYPTO_set_locking_callback");
    LOAD_DYNAMIC_SYMBOL(dlsym_ENGINE_load_rdrand, env, openssl, "ENGINE_load_rdrand");
    LOAD_DYNAMIC_SYMBOL(dlsym_ENGINE_cleanup, env, openssl, "ENGINE_cleanup");
  }
#endif

#ifdef WINDOWS
  LOAD_DYNAMIC_SYMBOL_FALLBACK(__dlsym_OpenSSL_version_num, dlsym_OpenSSL_version_num, env, openssl, "OpenSSL_version_num", "SSLeay");
  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");
  if (dlsym_OpenSSL_version_num() < VERSION_1_1_X) {
    LOAD_DYNAMIC_SYMBOL(__dlsym_CRYPTO_num_locks, dlsym_CRYPTO_num_locks, env, openssl, "CRYPTO_num_locks");
    LOAD_DYNAMIC_SYMBOL(__dlsym_CRYPTO_set_locking_callback, dlsym_CRYPTO_set_locking_callback, env, openssl, "CRYPTO_set_locking_callback");
    LOAD_DYNAMIC_SYMBOL(__dlsym_ENGINE_load_rdrand, dlsym_ENGINE_load_rdrand, env, openssl, "ENGINE_load_rdrand");
    LOAD_DYNAMIC_SYMBOL(__dlsym_ENGINE_cleanup, dlsym_ENGINE_cleanup, env, openssl, "ENGINE_cleanup");
  }
#endif

  openssl_rand_init();
}