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#include <assert.h>
#include <node.h>
#include <openssl/opensslv.h>
#if OPENSSL_VERSION_MAJOR >= 3
#include <openssl/provider.h>
#endif
namespace {
using v8::Array;
using v8::Context;
using v8::FunctionCallbackInfo;
using v8::Isolate;
using v8::Local;
using v8::Object;
using v8::String;
using v8::Value;
#if OPENSSL_VERSION_MAJOR >= 3
int collectProviders(OSSL_PROVIDER* provider, void* cbdata) {
static_cast<std::vector<OSSL_PROVIDER*>*>(cbdata)->push_back(provider);
return 1;
}
#endif
inline void GetProviders(const FunctionCallbackInfo<Value>& args) {
Isolate* isolate = args.GetIsolate();
std::vector<Local<Value>> arr = {};
#if OPENSSL_VERSION_MAJOR >= 3
std::vector<OSSL_PROVIDER*> providers;
OSSL_PROVIDER_do_all(nullptr, &collectProviders, &providers);
for (auto provider : providers) {
arr.push_back(
String::NewFromUtf8(isolate, OSSL_PROVIDER_get0_name(provider))
.ToLocalChecked());
}
#endif
args.GetReturnValue().Set(Array::New(isolate, arr.data(), arr.size()));
}
inline void Initialize(Local<Object> exports,
Local<Value> module,
Local<Context> context) {
NODE_SET_METHOD(exports, "getProviders", GetProviders);
}
} // anonymous namespace
NODE_MODULE_CONTEXT_AWARE(NODE_GYP_MODULE_NAME, Initialize)
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