PHP_MINIT_FUNCTION(openssl)
{
	char * config_filename;

	le_key = zend_register_list_destructors_ex(php_pkey_free, NULL, "OpenSSL key", module_number);
	le_x509 = zend_register_list_destructors_ex(php_x509_free, NULL, "OpenSSL X.509", module_number);
	le_csr = zend_register_list_destructors_ex(php_csr_free, NULL, "OpenSSL X.509 CSR", module_number);

	SSL_library_init();
	OpenSSL_add_all_ciphers();
	OpenSSL_add_all_digests();
	OpenSSL_add_all_algorithms();

	SSL_load_error_strings();

	/* register a resource id number with OpenSSL so that we can map SSL -> stream structures in
	 * OpenSSL callbacks */
	ssl_stream_data_index = SSL_get_ex_new_index(0, "PHP stream index", NULL, NULL, NULL);

	REGISTER_STRING_CONSTANT("OPENSSL_VERSION_TEXT", OPENSSL_VERSION_TEXT, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("OPENSSL_VERSION_NUMBER", OPENSSL_VERSION_NUMBER, CONST_CS|CONST_PERSISTENT);

	/* purposes for cert purpose checking */
	REGISTER_LONG_CONSTANT("X509_PURPOSE_SSL_CLIENT", X509_PURPOSE_SSL_CLIENT, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("X509_PURPOSE_SSL_SERVER", X509_PURPOSE_SSL_SERVER, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("X509_PURPOSE_NS_SSL_SERVER", X509_PURPOSE_NS_SSL_SERVER, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("X509_PURPOSE_SMIME_SIGN", X509_PURPOSE_SMIME_SIGN, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("X509_PURPOSE_SMIME_ENCRYPT", X509_PURPOSE_SMIME_ENCRYPT, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("X509_PURPOSE_CRL_SIGN", X509_PURPOSE_CRL_SIGN, CONST_CS|CONST_PERSISTENT);
#ifdef X509_PURPOSE_ANY
	REGISTER_LONG_CONSTANT("X509_PURPOSE_ANY", X509_PURPOSE_ANY, CONST_CS|CONST_PERSISTENT);
#endif

	/* signature algorithm constants */
	REGISTER_LONG_CONSTANT("OPENSSL_ALGO_SHA1", OPENSSL_ALGO_SHA1, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("OPENSSL_ALGO_MD5", OPENSSL_ALGO_MD5, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("OPENSSL_ALGO_MD4", OPENSSL_ALGO_MD4, CONST_CS|CONST_PERSISTENT);
#ifdef HAVE_OPENSSL_MD2_H
	REGISTER_LONG_CONSTANT("OPENSSL_ALGO_MD2", OPENSSL_ALGO_MD2, CONST_CS|CONST_PERSISTENT);
#endif
#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined (LIBRESSL_VERSION_NUMBER)
	REGISTER_LONG_CONSTANT("OPENSSL_ALGO_DSS1", OPENSSL_ALGO_DSS1, CONST_CS|CONST_PERSISTENT);
#endif
#if OPENSSL_VERSION_NUMBER >= 0x0090708fL
	REGISTER_LONG_CONSTANT("OPENSSL_ALGO_SHA224", OPENSSL_ALGO_SHA224, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("OPENSSL_ALGO_SHA256", OPENSSL_ALGO_SHA256, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("OPENSSL_ALGO_SHA384", OPENSSL_ALGO_SHA384, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("OPENSSL_ALGO_SHA512", OPENSSL_ALGO_SHA512, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("OPENSSL_ALGO_RMD160", OPENSSL_ALGO_RMD160, CONST_CS|CONST_PERSISTENT);
#endif

	/* flags for S/MIME */
	REGISTER_LONG_CONSTANT("PKCS7_DETACHED", PKCS7_DETACHED, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("PKCS7_TEXT", PKCS7_TEXT, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("PKCS7_NOINTERN", PKCS7_NOINTERN, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("PKCS7_NOVERIFY", PKCS7_NOVERIFY, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("PKCS7_NOCHAIN", PKCS7_NOCHAIN, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("PKCS7_NOCERTS", PKCS7_NOCERTS, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("PKCS7_NOATTR", PKCS7_NOATTR, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("PKCS7_BINARY", PKCS7_BINARY, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("PKCS7_NOSIGS", PKCS7_NOSIGS, CONST_CS|CONST_PERSISTENT);

	REGISTER_LONG_CONSTANT("OPENSSL_PKCS1_PADDING", RSA_PKCS1_PADDING, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("OPENSSL_SSLV23_PADDING", RSA_SSLV23_PADDING, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("OPENSSL_NO_PADDING", RSA_NO_PADDING, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("OPENSSL_PKCS1_OAEP_PADDING", RSA_PKCS1_OAEP_PADDING, CONST_CS|CONST_PERSISTENT);

	/* Informational stream wrapper constants */
	REGISTER_STRING_CONSTANT("OPENSSL_DEFAULT_STREAM_CIPHERS", OPENSSL_DEFAULT_STREAM_CIPHERS, CONST_CS|CONST_PERSISTENT);

	/* Ciphers */
#ifndef OPENSSL_NO_RC2
	REGISTER_LONG_CONSTANT("OPENSSL_CIPHER_RC2_40", PHP_OPENSSL_CIPHER_RC2_40, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("OPENSSL_CIPHER_RC2_128", PHP_OPENSSL_CIPHER_RC2_128, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("OPENSSL_CIPHER_RC2_64", PHP_OPENSSL_CIPHER_RC2_64, CONST_CS|CONST_PERSISTENT);
#endif
#ifndef OPENSSL_NO_DES
	REGISTER_LONG_CONSTANT("OPENSSL_CIPHER_DES", PHP_OPENSSL_CIPHER_DES, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("OPENSSL_CIPHER_3DES", PHP_OPENSSL_CIPHER_3DES, CONST_CS|CONST_PERSISTENT);
#endif
#ifndef OPENSSL_NO_AES
	REGISTER_LONG_CONSTANT("OPENSSL_CIPHER_AES_128_CBC", PHP_OPENSSL_CIPHER_AES_128_CBC, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("OPENSSL_CIPHER_AES_192_CBC", PHP_OPENSSL_CIPHER_AES_192_CBC, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("OPENSSL_CIPHER_AES_256_CBC", PHP_OPENSSL_CIPHER_AES_256_CBC, CONST_CS|CONST_PERSISTENT);
#endif

	/* Values for key types */
	REGISTER_LONG_CONSTANT("OPENSSL_KEYTYPE_RSA", OPENSSL_KEYTYPE_RSA, CONST_CS|CONST_PERSISTENT);
#ifndef NO_DSA
	REGISTER_LONG_CONSTANT("OPENSSL_KEYTYPE_DSA", OPENSSL_KEYTYPE_DSA, CONST_CS|CONST_PERSISTENT);
#endif
	REGISTER_LONG_CONSTANT("OPENSSL_KEYTYPE_DH", OPENSSL_KEYTYPE_DH, CONST_CS|CONST_PERSISTENT);
#ifdef HAVE_EVP_PKEY_EC
	REGISTER_LONG_CONSTANT("OPENSSL_KEYTYPE_EC", OPENSSL_KEYTYPE_EC, CONST_CS|CONST_PERSISTENT);
#endif

	REGISTER_LONG_CONSTANT("OPENSSL_RAW_DATA", OPENSSL_RAW_DATA, CONST_CS|CONST_PERSISTENT);
	REGISTER_LONG_CONSTANT("OPENSSL_ZERO_PADDING", OPENSSL_ZERO_PADDING, CONST_CS|CONST_PERSISTENT);

#if OPENSSL_VERSION_NUMBER >= 0x0090806fL && !defined(OPENSSL_NO_TLSEXT)
	/* SNI support included in OpenSSL >= 0.9.8j */
	REGISTER_LONG_CONSTANT("OPENSSL_TLSEXT_SERVER_NAME", 1, CONST_CS|CONST_PERSISTENT);
#endif

	/* Determine default SSL configuration file */
	config_filename = getenv("OPENSSL_CONF");
	if (config_filename == NULL) {
		config_filename = getenv("SSLEAY_CONF");
	}

	/* default to 'openssl.cnf' if no environment variable is set */
	if (config_filename == NULL) {
		snprintf(default_ssl_conf_filename, sizeof(default_ssl_conf_filename), "%s/%s",
				X509_get_default_cert_area(),
				"openssl.cnf");
	} else {
		strlcpy(default_ssl_conf_filename, config_filename, sizeof(default_ssl_conf_filename));
	}

	php_stream_xport_register("ssl", php_openssl_ssl_socket_factory);
#ifndef OPENSSL_NO_SSL3
	php_stream_xport_register("sslv3", php_openssl_ssl_socket_factory);
#endif
#ifndef OPENSSL_NO_SSL2
	php_stream_xport_register("sslv2", php_openssl_ssl_socket_factory);
#endif
	php_stream_xport_register("tls", php_openssl_ssl_socket_factory);
	php_stream_xport_register("tlsv1.0", php_openssl_ssl_socket_factory);
#if OPENSSL_VERSION_NUMBER >= 0x10001001L
	php_stream_xport_register("tlsv1.1", php_openssl_ssl_socket_factory);
	php_stream_xport_register("tlsv1.2", php_openssl_ssl_socket_factory);
#endif

	/* override the default tcp socket provider */
	php_stream_xport_register("tcp", php_openssl_ssl_socket_factory);

	php_register_url_stream_wrapper("https", &php_stream_http_wrapper);
	php_register_url_stream_wrapper("ftps", &php_stream_ftp_wrapper);

	REGISTER_INI_ENTRIES();

	return SUCCESS;
}

The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.