2 * Copyright 2016 Facebook, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 #include <folly/Conv.h>
20 #include <openssl/crypto.h>
21 #include <openssl/opensslv.h>
23 #define OPENSSL_IS_101 \
24 (OPENSSL_VERSION_NUMBER >= 0x1000105fL && \
25 OPENSSL_VERSION_NUMBER < 0x1000200fL)
26 #define OPENSSL_IS_102 \
27 (OPENSSL_VERSION_NUMBER >= 0x1000200fL && \
28 OPENSSL_VERSION_NUMBER < 0x10100000L)
29 #define OPENSSL_IS_110 (OPENSSL_VERSION_NUMBER >= 0x10100000L)
31 // This is used to find the OpenSSL version at runtime. Just returning
32 // OPENSSL_VERSION_NUMBER is insufficient as runtime version may be different
33 // from the compile-time version
34 struct OpenSSLVersionFinder {
35 static std::string getOpenSSLLongVersion(void) {
36 #ifdef OPENSSL_VERSION_TEXT
37 return SSLeay_version(SSLEAY_VERSION);
38 #elif defined(OPENSSL_VERSION_NUMBER)
39 return folly::format("0x{:x}", OPENSSL_VERSION_NUMBER).str();
45 uint64_t getOpenSSLNumericVersion(void) {
46 #ifdef OPENSSL_VERSION_NUMBER