OK that's my first working C wrapper, but I don't yet know how to do anything other than initialize, start, and stop a router

libi2pd/capi.cpp

@@ -0,0 +1,80 @@
+/*
+* Copyright (c) 2013-2020, The PurpleI2P Project
+*
+* This file is part of Purple i2pd project and licensed under BSD3
+*
+* See full license text in LICENSE file at top of project tree
+*/
+
+#include "capi.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void C_InitI2P (int argc, char* argv[], const char * appName)
+{
+	return i2p::api::InitI2P(argc, argv, appName);
+}
+
+void C_TerminateI2P ()
+{
+	return i2p::api::TerminateI2P();
+}
+
+void C_StartI2P (std::shared_ptr<std::ostream> logStream)
+{
+	return i2p::api::StartI2P(logStream);
+}
+
+void C_StopI2P ()
+{
+	return i2p::api::StopI2P();
+}
+
+void C_RunPeerTest ()
+{
+	return i2p::api::RunPeerTest();
+}
+
+std::shared_ptr<i2p::client::ClientDestination> C_CreateLocalDestination (const i2p::data::PrivateKeys& keys, bool isPublic,
+	const std::map<std::string, std::string> * params)
+{
+	return i2p::api::CreateLocalDestination(keys, isPublic, params);
+}
+
+std::shared_ptr<i2p::client::ClientDestination> C_CreateTransientLocalDestination (bool isPublic, i2p::data::SigningKeyType sigType,
+	const std::map<std::string, std::string> * params)
+{
+	return i2p::api::CreateLocalDestination(isPublic, sigType, params);
+}
+
+void C_DestroyLocalDestination (std::shared_ptr<i2p::client::ClientDestination> dest)
+{
+	return i2p::api::DestroyLocalDestination(dest);
+}
+
+void C_RequestLeaseSet (std::shared_ptr<i2p::client::ClientDestination> dest, const i2p::data::IdentHash& remote)
+{
+	return i2p::api::RequestLeaseSet(dest, remote);
+}
+
+std::shared_ptr<i2p::stream::Stream> C_CreateStream (std::shared_ptr<i2p::client::ClientDestination> dest, const i2p::data::IdentHash& remote)
+{
+	return i2p::api::CreateStream(dest, remote);
+}
+
+void C_AcceptStream (std::shared_ptr<i2p::client::ClientDestination> dest, const i2p::stream::StreamingDestination::Acceptor& acceptor)
+{
+	return i2p::api::AcceptStream(dest, acceptor);
+}
+
+void C_DestroyStream (std::shared_ptr<i2p::stream::Stream> stream)
+{
+	return i2p::api::DestroyStream(stream);
+}
+
+#ifdef __cplusplus
+}
+#endif
+

libi2pd/capi.h

@@ -0,0 +1,43 @@
+/*
+* Copyright (c) 2013-2020, The PurpleI2P Project
+*
+* This file is part of Purple i2pd project and licensed under BSD3
+*
+* See full license text in LICENSE file at top of project tree
+*/
+
+#ifndef CAPI_H__
+#define CAPI_H__
+
+#include "api.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// initialization start and stop
+void C_InitI2P (int argc, char* argv[], const char * appName);
+void C_TerminateI2P ();
+void C_StartI2P (std::shared_ptr<std::ostream> logStream = nullptr);
+// write system log to logStream, if not specified to <appName>.log in application's folder
+void C_StopI2P ();
+void C_RunPeerTest (); // should be called after UPnP
+
+// destinations
+std::shared_ptr<i2p::client::ClientDestination> C_CreateLocalDestination (const i2p::data::PrivateKeys& keys, bool isPublic = true,
+	const std::map<std::string, std::string> * params = nullptr);
+std::shared_ptr<i2p::client::ClientDestination> C_CreateTransientLocalDestination (bool isPublic = false, i2p::data::SigningKeyType sigType = i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA256_P256,
+	const std::map<std::string, std::string> * params = nullptr); // transient destinations usually not published
+void C_DestroyLocalDestination (std::shared_ptr<i2p::client::ClientDestination> dest);
+
+// streams
+void C_RequestLeaseSet (std::shared_ptr<i2p::client::ClientDestination> dest, const i2p::data::IdentHash& remote);
+std::shared_ptr<i2p::stream::Stream> C_CreateStream (std::shared_ptr<i2p::client::ClientDestination> dest, const i2p::data::IdentHash& remote);
+void C_AcceptStream (std::shared_ptr<i2p::client::ClientDestination> dest, const i2p::stream::StreamingDestination::Acceptor& acceptor);
+void C_DestroyStream (std::shared_ptr<i2p::stream::Stream> stream);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif