diff --git a/include/fc/exception.hpp b/include/fc/exception.hpp
index 77514bf..65f4752 100644
--- a/include/fc/exception.hpp
+++ b/include/fc/exception.hpp
@@ -88,6 +88,7 @@ namespace fc {
     throw_exception_( func, file, line, msg, to_string(fc::forward<T1>(a1) ), to_string( fc::forward<T2>(a2) ), to_string( fc::forward<T3>(a3) ) );
   }
 
+  fc::string except_str();
 
 } // namespace fc 
 #define FC_THROW(X) throw X
diff --git a/include/fc/filesystem.hpp b/include/fc/filesystem.hpp
index ad659f1..1c33a38 100644
--- a/include/fc/filesystem.hpp
+++ b/include/fc/filesystem.hpp
@@ -6,6 +6,7 @@
 namespace boost {
   namespace filesystem {
     class path;
+    class directory_iterator;
   }
 }
 
@@ -31,15 +32,34 @@ namespace fc {
       operator boost::filesystem::path& ();
       operator const boost::filesystem::path& ()const;
 
+      fc::path   stem()const;
+      fc::path   extension()const;
       fc::path   filename()const;
+      fc::path   parent_path()const;
       fc::string string()const;
     private:
       fwd<boost::filesystem::path,8> _p; 
   };
 
+  class directory_iterator {
+    public:
+      directory_iterator( const fc::path& p );
+      directory_iterator();
+      ~directory_iterator();
+
+      fc::path            operator*()const;
+      directory_iterator& operator++(int);
+      directory_iterator& operator++();
+
+      friend bool operator==( const directory_iterator&, const directory_iterator& );
+      friend bool operator!=( const directory_iterator&, const directory_iterator& );
+    private:
+      fwd<boost::filesystem::directory_iterator,8> _p; 
+  };
+
   bool     exists( const path& p );
   bool     is_directory( const path& p );
-  bool     is_regular( const path& p );
+  bool     is_regular_file( const path& p );
   void     create_directories( const path& p );
   uint64_t file_size( const path& p );
 }
diff --git a/include/fc/stream.hpp b/include/fc/stream.hpp
index c4584fb..1235384 100644
--- a/include/fc/stream.hpp
+++ b/include/fc/stream.hpp
@@ -196,6 +196,7 @@ namespace fc {
       friend stringstream& operator<<( stringstream&, const bool&       );
       friend stringstream& operator<<( stringstream&, const char&       );
       friend stringstream& operator<<( stringstream&, const fc::string& );
+      friend stringstream& operator<<( stringstream&, const char* );
     private:
       class impl;
       fwd<impl,368> my;
diff --git a/include/fc/string.hpp b/include/fc/string.hpp
index d9e214c..4ad1b3c 100644
--- a/include/fc/string.hpp
+++ b/include/fc/string.hpp
@@ -56,6 +56,8 @@ namespace fc {
 
       friend string operator + ( const string&, const string&  );
       friend string operator + ( const string&, char c );
+
+      fc::string substr( int32_t start, int32_t len = 0x7fffffff );
     
     private:
        void* my;
diff --git a/include/fc/tcp_socket.hpp b/include/fc/tcp_socket.hpp
index ad4bcf8..e90d555 100644
--- a/include/fc/tcp_socket.hpp
+++ b/include/fc/tcp_socket.hpp
@@ -16,6 +16,8 @@ namespace fc {
       size_t readsome( char* buffer, size_t max );
       size_t read( char* buffer, size_t s );
 
+      void flush();
+
     private:
       friend class tcp_server;
       class impl;
@@ -24,11 +26,11 @@ namespace fc {
 
   class tcp_server {
     public:
-      tcp_server();
+      tcp_server(uint16_t port=0);
       ~tcp_server();
 
       bool accept( tcp_socket& s );
-      void listen( uint16_t port );
+//      void listen( uint16_t port );
     
     private:
       class impl;
diff --git a/src/asio.cpp b/src/asio.cpp
index 9a2e0c2..90cbc14 100644
--- a/src/asio.cpp
+++ b/src/asio.cpp
@@ -1,5 +1,6 @@
 #include <fc/asio.hpp>
 #include <fc/thread.hpp>
+#include <fc/log.hpp>
 #include <boost/thread.hpp>
 
 namespace fc {
diff --git a/src/base58.cpp b/src/base58.cpp
index 3d27f1c..724625b 100644
--- a/src/base58.cpp
+++ b/src/base58.cpp
@@ -21,6 +21,7 @@
 #include <algorithm>
 #include <string.h>
 
+#include <fc/log.hpp>
 #include <fc/string.hpp>
 #include <fc/exception.hpp>
 
@@ -534,6 +535,7 @@ inline std::string EncodeBase58(const unsigned char* pbegin, const unsigned char
 
     // Convert little endian std::string to big endian
     reverse(str.begin(), str.end());
+//    slog( "Encode '%s'", str.c_str() );
     return str;
 }
 
@@ -563,8 +565,10 @@ inline bool DecodeBase58(const char* psz, std::vector<unsigned char>& vchRet)
         {
             while (isspace(*p))
                 p++;
-            if (*p != '\0')
+            if (*p != '\0') {
+                slog( "%s  '%c'", pszBase58,*p );
                 return false;
+            }
             break;
         }
         bnChar.setulong(p1 - pszBase58);
@@ -609,6 +613,7 @@ fc::string to_base58( const char* d, uint32_t s ) {
  *  @return the number of bytes decoded
  */
 size_t from_base58( const fc::string& base58_str, char* out_data, size_t out_data_len ) {
+  //slog( "%s", base58_str.c_str() );
   std::vector<unsigned char> out;
   if( !DecodeBase58( base58_str.c_str(), out ) ) {
     FC_THROW_MSG( "Unable to decode base58 string '%s'", base58_str );
diff --git a/src/exception.cpp b/src/exception.cpp
index 59fb3b8..332f463 100644
--- a/src/exception.cpp
+++ b/src/exception.cpp
@@ -102,5 +102,7 @@ namespace fc {
                         const fc::string& a1, const fc::string& a2, const fc::string& a3, const fc::string& a4 ) {
     ::boost::exception_detail::throw_exception_(fc::generic_exception(msg),func, file, line );
   }
+  fc::string except_str() { return fc::current_exception().diagnostic_information(); }
 
 }
+
diff --git a/src/filesystem.cpp b/src/filesystem.cpp
index ab6fb29..385dfaf 100644
--- a/src/filesystem.cpp
+++ b/src/filesystem.cpp
@@ -56,11 +56,20 @@ namespace fc {
    fc::path path::filename()const {
     return _p->filename();
    }
+   fc::path path::extension()const {
+    return _p->extension();
+   }
+   fc::path path::stem()const {
+    return _p->stem();
+   }
+   fc::path path::parent_path()const {
+    return _p->parent_path();
+   }
 
 
   bool exists( const path& p ) { return boost::filesystem::exists(p); }
   void create_directories( const path& p ) { boost::filesystem::create_directories(p); }
   bool is_directory( const path& p ) { return boost::filesystem::is_directory(p); }
-  bool is_regular( const path& p ) { return boost::filesystem::is_regular(p); }
+  bool is_regular_file( const path& p ) { return boost::filesystem::is_regular_file(p); }
   uint64_t file_size( const path& p ) { return boost::filesystem::file_size(p); }
 }
diff --git a/src/stream.cpp b/src/stream.cpp
index 73710bc..bba12f1 100644
--- a/src/stream.cpp
+++ b/src/stream.cpp
@@ -233,16 +233,81 @@ namespace fc {
     public:
     impl( fc::string&s )
     :ss( reinterpret_cast<std::string&>(s) )
-    {
-    }
+    { }
+    impl(){}
+    
     std::stringstream ss;
   };
 
   stringstream::stringstream( fc::string& s )
   :my(s) {
   }
+  stringstream::stringstream(){}
   stringstream::~stringstream(){}
 
+  stringstream& operator<<( stringstream& s, const int64_t&   v ){
+    s.my->ss << v;
+    return s;
+  }
+  stringstream& operator<<( stringstream& s, const uint64_t&   v ){
+    s.my->ss << v;
+    return s;
+  }
+  stringstream& operator<<( stringstream& s, const int32_t&    v ){
+    s.my->ss << v;
+    return s;
+  }
+  stringstream& operator<<( stringstream& s, const uint32_t&   v ){
+    s.my->ss << v;
+    return s;
+  }
+  stringstream& operator<<( stringstream& s, const int16_t&    v ){
+    s.my->ss << v;
+    return s;
+  }
+  stringstream& operator<<( stringstream& s, const uint16_t&   v ){
+    s.my->ss << v;
+    return s;
+  }
+  stringstream& operator<<( stringstream& s, const int8_t&     v ){
+    s.my->ss << v;
+    return s;
+  }
+  stringstream& operator<<( stringstream& s, const uint8_t&    v ){
+    s.my->ss << v;
+    return s;
+  }
+  stringstream& operator<<( stringstream& s, const float&      v ){
+    s.my->ss << v;
+    return s;
+  }
+  stringstream& operator<<( stringstream& s, const double&     v ){
+    s.my->ss << v;
+    return s;
+  }
+  stringstream& operator<<( stringstream& s, const bool&      v ){
+    s.my->ss << v;
+    return s;
+  }
+  stringstream& operator<<( stringstream& s, const char&      v ){
+    s.my->ss << v;
+    return s;
+  }
+  stringstream& operator<<( stringstream& s, const char* cs ) {
+    s.my->ss << cs;
+    return s;
+  }
+  stringstream& operator<<( stringstream& s, const fc::string& v ){
+    s.my->ss <<reinterpret_cast<const std::string&>(v); 
+    return s;
+  }
+
+  fc::string stringstream::str(){
+    //std::string st = my->ss.str();
+    return my->ss.str().c_str();//*reinterpret_cast<fc::string*>(&st);
+  }
+
+
   stringstream& operator>>( stringstream& s, int64_t&   v ){
     s.my->ss >> v;
     return s;
diff --git a/src/string.cpp b/src/string.cpp
index c5bbaf5..bb616d7 100644
--- a/src/string.cpp
+++ b/src/string.cpp
@@ -64,6 +64,10 @@ namespace fc  {
   void       string::clear()                { return reinterpret_cast<std::string*>(this)->clear(); }
   void       string::resize( uint64_t s )   { reinterpret_cast<std::string*>(this)->resize(s); }
                                             
+
+  fc::string string::substr( int32_t start, int32_t len ) {
+    return reinterpret_cast<const std::string&>(*this).substr(start,len).c_str();
+  }
   const char* string::c_str()const          { return reinterpret_cast<const std::string*>(this)->c_str(); }
 
   bool    string::operator == ( const char* s )const {
diff --git a/src/tcp_socket.cpp b/src/tcp_socket.cpp
index 058fcd8..07abe9a 100644
--- a/src/tcp_socket.cpp
+++ b/src/tcp_socket.cpp
@@ -1,6 +1,7 @@
 #include <fc/tcp_socket.hpp>
 #include <fc/ip.hpp>
 #include <fc/fwd_impl.hpp>
+#include <fc/log.hpp>
 #include <fc/asio.hpp>
 
 namespace fc {
@@ -9,7 +10,7 @@ namespace fc {
     public:
       impl():_sock( fc::asio::default_io_service() ){}
       ~impl(){
-        _sock.cancel();
+        _sock.close();
       }
 
       boost::asio::ip::tcp::socket _sock;
@@ -24,12 +25,14 @@ namespace fc {
     boost::system::error_code ec;
     size_t w = my->_sock.write_some( boost::asio::buffer( buf, len ), ec );
 
+    slog( "wrote %d ", w );
     if( w < len ) {
       buf += w;
       len -= w;
-    }
+    } 
 
     if( ec == boost::asio::error::would_block ) {
+      wlog( "world block" );
       promise<size_t>::ptr p(new promise<size_t>("tcp_socket::write"));
       boost::asio::async_write( my->_sock, boost::asio::buffer(buf, len),
                 [=]( const boost::system::error_code& ec, size_t bt ) {
@@ -38,6 +41,7 @@ namespace fc {
                 });
       p->wait();
     } else if( ec ) {
+      wlog( "throw" );
       throw boost::system::system_error(ec);
     }
   }
@@ -67,7 +71,7 @@ namespace fc {
 
   class tcp_server::impl {
     public:
-      impl():_accept( fc::asio::default_io_service() ){}
+      impl(uint16_t port):_accept( fc::asio::default_io_service(), boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v4(), port) ){}
       ~impl(){
         _accept.cancel();
       }
@@ -75,26 +79,38 @@ namespace fc {
       boost::asio::ip::tcp::acceptor _accept;
   };
 
-  tcp_server::tcp_server() {
+  tcp_server::tcp_server(uint16_t port)
+  :my(port) {
   }
   tcp_server::~tcp_server() {
   }
 
 
   bool tcp_server::accept( tcp_socket& s ) {
-    fc::promise<boost::system::error_code>::ptr p( 
-        new promise<boost::system::error_code>("mace::cmt::asio::tcp::accept") );
-    my->_accept.async_accept( s.my->_sock, 
-        [=]( const boost::system::error_code& e ) {
-          p->set_value(e);
-        } );
+    slog( "accept!" );
+    fc::promise<boost::system::error_code>::ptr p( new promise<boost::system::error_code>("mace::cmt::asio::tcp::accept") );
+    slog( "." );
+    my->_accept.async_accept( s.my->_sock, [=]( const boost::system::error_code& e ) {
+                  slog( "\aaccept!" );
+                  p->set_value(e);
+              } );
+    slog( "." );
     auto ec = p->wait();
+    slog( "." );
     if( !ec ) s.my->_sock.non_blocking(true);
     if( ec ) BOOST_THROW_EXCEPTION( boost::system::system_error(ec) );
     return true;
   }
+ #if 0 
   void tcp_server::listen( uint16_t port ) {
+  /*
+    slog( "listen %d!", port );
+    my->_accept.bind( 
+    slog( "listen %d!", port );
     my->_accept.listen(port);
+    slog( "listen %d!", port );
+    */
   }
+  #endif
 
 } // namespace fc