src: add node_crypto_common and refactor

Two things in one on this commit:

(a) For the QUIC implementation, we need to separate out various bits
    from node_crypto.cc to allow them to be reused. That's where this
    commit starts.

(b) Quite a bit of the node_crypto.cc code was just messy in terms of
    it's organization and lack of error handling and use of Local vs.
    MaybeLocal. This cleans that up a bit and hopefully makes certain
    parts a bit more manageable also.

Signed-off-by: James M Snell <jasnell@gmail.com>

PR-URL: https://github.com/nodejs/node/pull/32016
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/src/node_crypto.h b/src/node_crypto.h
index 655605290b0..772a34a7da7 100644
--- a/src/node_crypto.h
+++ b/src/node_crypto.h
@@ -90,6 +90,8 @@ class SecureContext final : public BaseObject {
 
   static void Initialize(Environment* env, v8::Local<v8::Object> target);
 
+  SSL_CTX* operator*() const { return ctx_.get(); }
+
   // TODO(joyeecheung): track the memory used by OpenSSL types
   SET_NO_MEMORY_INFO()
   SET_MEMORY_INFO_NAME(SecureContext)
@@ -779,6 +781,17 @@ void SetEngine(const v8::FunctionCallbackInfo<v8::Value>& args);
 #endif  // !OPENSSL_NO_ENGINE
 void InitCrypto(v8::Local<v8::Object> target);
 
+void ThrowCryptoError(Environment* env,
+                      unsigned long err,  // NOLINT(runtime/int)
+                      const char* message = nullptr);
+
+template <typename T>
+inline T* MallocOpenSSL(size_t count) {
+  void* mem = OPENSSL_malloc(MultiplyWithOverflowCheck(count, sizeof(T)));
+  CHECK_IMPLIES(mem == nullptr, count == 0);
+  return static_cast<T*>(mem);
+}
+
 }  // namespace crypto
 }  // namespace node