Initial SOCKS5 implementation.

src/base/net/stratum/Socks5.h

@@ -0,0 +1,60 @@
+/* XMRig
+ * Copyright 2018-2020 SChernykh   <https://github.com/SChernykh>
+ * Copyright 2016-2020 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef XMRIG_SOCKS5_H
+#define XMRIG_SOCKS5_H
+
+
+#include "base/net/stratum/Client.h"
+
+
+namespace xmrig {
+
+
+class Client::Socks5
+{
+public:
+    Socks5(Client *client);
+
+    inline bool isReady() const     { return m_state == Ready; }
+
+    bool read(const char *data, size_t size);
+    void handshake();
+
+private:
+    enum State {
+        Created,
+        SentInitialHandshake,
+        SentFinalHandshake,
+        Ready
+    };
+
+    bool isIPv4(const String &host) const;
+    bool isIPv6(const String &host) const;
+    void connect();
+
+    Client *m_client;
+    size_t m_nextSize   = 0;
+    State m_state       = Created;
+};
+
+
+} /* namespace xmrig */
+
+
+#endif /* XMRIG_SOCKS5_H */