diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4102896..a217780 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -54,6 +54,7 @@ set( sources
   src/json_rpc_stream_connection.cpp
   src/json_rpc_tcp_connection.cpp
   src/json_rpc_tcp_server.cpp
+  src/json_rpc_error_object.cpp
   src/value.cpp
   src/lexical_cast.cpp
   src/spin_lock.cpp 
@@ -88,7 +89,7 @@ set( sources
 #  src/program_options.cpp
 )
 
-add_subdirectory(vendor/libssh2-1.4.2)
+#add_subdirectory(vendor/libssh2-1.4.2)
 
 setup_library( fc SOURCES ${sources} )
 
diff --git a/include/fc/filesystem.hpp b/include/fc/filesystem.hpp
index 01c06a2..b7e5235 100644
--- a/include/fc/filesystem.hpp
+++ b/include/fc/filesystem.hpp
@@ -62,6 +62,7 @@ namespace fc {
   bool     is_directory( const path& p );
   bool     is_regular_file( const path& p );
   void     create_directories( const path& p );
+  path     canonical( const path& p );
   uint64_t file_size( const path& p );
 }
 
diff --git a/include/fc/ssh/process.hpp b/include/fc/ssh/process.hpp
index cc4dbbe..fbc65dc 100644
--- a/include/fc/ssh/process.hpp
+++ b/include/fc/ssh/process.hpp
@@ -28,9 +28,11 @@ namespace fc {
 
       process( const process& p );
       process( process&& p );
-
+      process();
       ~process();
 
+      bool valid()const;
+
       /**
        *  Blocks until the result code of the process has been returned.
        */
@@ -50,7 +52,6 @@ namespace fc {
     private:
       friend class client;
       process( client& c, const fc::string& cmd, const fc::string& pty_type = fc::string() );
-      process();
 
       fc::shared_ptr<detail::process_impl> my;
   };
diff --git a/src/ssh.cpp b/src/ssh.cpp
index eb8f6aa..fe5b9d6 100644
--- a/src/ssh.cpp
+++ b/src/ssh.cpp
@@ -643,6 +643,9 @@ namespace fc { namespace ssh {
 
   process::~process()
   {}
+  bool process::valid()const {
+      return !!my;
+  }
 
   /**
    *  Blocks until the result code of the process has been returned.