src: move GetOpenSSLVersion into node_metadata.cc

Instead of implementing it in node_crypto.cc even though the only
place that needs it is the `Metadata::Versions` constructor.

PR-URL: https://github.com/nodejs/node/pull/25115
Reviewed-By: Steven R Loomis <srloomis@us.ibm.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Minwoo Jung <minwoo@nodesource.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 20 insertions, 3 deletions

diff --git a/src/node_metadata.cc b/src/node_metadata.cc
index 822b6a490d..3ddec4b36a 100644
--- a/src/node_metadata.cc
+++ b/src/node_metadata.cc
@@ -9,8 +9,8 @@
 #include "zlib.h"
 
 #if HAVE_OPENSSL
-#include "node_crypto.h"
-#endif
+#include <openssl/opensslv.h>
+#endif  // HAVE_OPENSSL
 
 namespace node {
 
@@ -18,6 +18,23 @@ namespace per_process {
 Metadata metadata;
 }
 
+#if HAVE_OPENSSL
+constexpr int search(const char* s, int n, int c) {
+  return *s == c ? n : search(s + 1, n + 1, c);
+}
+
+std::string GetOpenSSLVersion() {
+  // sample openssl version string format
+  // for reference: "OpenSSL 1.1.0i 14 Aug 2018"
+  char buf[128];
+  const int start = search(OPENSSL_VERSION_TEXT, 0, ' ') + 1;
+  const int end = search(OPENSSL_VERSION_TEXT + start, start, ' ');
+  const int len = end - start;
+  snprintf(buf, sizeof(buf), "%.*s", len, &OPENSSL_VERSION_TEXT[start]);
+  return std::string(buf);
+}
+#endif  // HAVE_OPENSSL
+
 Metadata::Versions::Versions() {
   node = NODE_VERSION_STRING;
   v8 = v8::V8::GetVersion();
@@ -31,7 +48,7 @@ Metadata::Versions::Versions() {
   http_parser = http_parser_version;
 
 #if HAVE_OPENSSL
-  openssl = crypto::GetOpenSSLVersion();
+  openssl = GetOpenSSLVersion();
 #endif
 }