Squashed 'OpenVPN Adapter/Vendors/openvpn/' content from commit da99df6

git-subtree-dir: OpenVPN Adapter/Vendors/openvpn
git-subtree-split: da99df69492256d7a18bbea303ae98457782a4bf

openvpn/ssl/nscert.hpp

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+//    OpenVPN -- An application to securely tunnel IP networks
+//               over a single port, with support for SSL/TLS-based
+//               session authentication and key exchange,
+//               packet encryption, packet authentication, and
+//               packet compression.
+//
+//    Copyright (C) 2012-2017 OpenVPN Technologies, Inc.
+//
+//    This program is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU General Public License Version 3
+//    as published by the Free Software Foundation.
+//
+//    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 in the COPYING file.
+//    If not, see <http://www.gnu.org/licenses/>.
+
+// Parse the ns-cert-type option.
+
+#ifndef OPENVPN_SSL_NSCERT_H
+#define OPENVPN_SSL_NSCERT_H
+
+#include <string>
+
+#include <openvpn/common/size.hpp>
+#include <openvpn/common/exception.hpp>
+#include <openvpn/common/options.hpp>
+
+namespace openvpn {
+  namespace NSCert {
+    enum Type {
+      NONE,
+      CLIENT,
+      SERVER
+    };
+
+    inline Type ns_cert_type(const OptionList& opt, const std::string& relay_prefix) {
+      const Option* o = opt.get_ptr(relay_prefix + "ns-cert-type");
+      if (o)
+	{
+	  const std::string ct = o->get_optional(1, 16);
+	  if (ct == "server")
+	    return SERVER;
+	  else if (ct == "client")
+	    return CLIENT;
+	  else
+	    throw option_error("ns-cert-type must be 'client' or 'server'");
+	}
+      return NONE;
+    }
+  }
+}
+
+#endif