Initial import of psocksxx version 0.0.5-1

30 files changed, 3831 insertions, 0 deletions

diff --git a/lib/Makefile.am b/lib/Makefile.am
new file mode 100644
index 0000000..44c41bf
--- /dev/null
+++ b/lib/Makefile.am
@@ -0,0 +1,3 @@
+## [psocksxx] lib/
+SUBDIRS = psocksxx
+
diff --git a/lib/Makefile.in b/lib/Makefile.in
new file mode 100644
index 0000000..0d22a69
--- /dev/null
+++ b/lib/Makefile.in
@@ -0,0 +1,582 @@
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+	cscopelist cscopelist-recursive ctags ctags-recursive \
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+	install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
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diff --git a/lib/psocksxx/Makefile.am b/lib/psocksxx/Makefile.am
new file mode 100644
index 0000000..fb9a26a
--- /dev/null
+++ b/lib/psocksxx/Makefile.am
@@ -0,0 +1,38 @@
+## [psocksxx] lib/psocksxx/
+
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+
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+libpsocksxx_la_SOURCES  = \
+	sockexception.cpp \
+	socktimeoutexception.cpp \
+	lsockaddr.cpp \
+	nsockaddr.cpp \
+	sockstreambuf.cpp \
+	iosocks.cpp \
+	isockstream.cpp \
+	osockstream.cpp \
+	lsockstream.cpp \
+	nsockstream.cpp \
+	tcpnsockstream.cpp \
+	udpnsockstream.cpp
+
+libpsocksxxinclude_HEADERS = \
+	sockexception.h \
+	socktimeoutexception.h \
+	sockaddr.h \
+	lsockaddr.h \
+	nsockaddr.h \
+	sockstreambuf.h \
+	iosocks.h \
+	isockstream.h \
+	osockstream.h \
+	iosockstream.h \
+	lsockstream.h \
+	nsockstream.h \
+	tcpnsockstream.h \
+	udpnsockstream.h
+
diff --git a/lib/psocksxx/Makefile.in b/lib/psocksxx/Makefile.in
new file mode 100644
index 0000000..8ec1b54
--- /dev/null
+++ b/lib/psocksxx/Makefile.in
@@ -0,0 +1,655 @@
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+	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	mkid -fID $$unique
+tags: TAGS
+
+TAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	set x; \
+	here=`pwd`; \
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: CTAGS
+CTAGS:  $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+
+cscopelist:  $(HEADERS) $(SOURCES) $(LISP)
+	list='$(SOURCES) $(HEADERS) $(LISP)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES) $(HEADERS)
+installdirs:
+	for dir in "$(DESTDIR)$(libdir)" "$(DESTDIR)$(libpsocksxxincludedir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libLTLIBRARIES clean-libtool \
+	mostlyclean-am
+
+distclean: distclean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-libpsocksxxincludeHEADERS
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-libLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -rf ./$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-libLTLIBRARIES \
+	uninstall-libpsocksxxincludeHEADERS
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
+	clean-libLTLIBRARIES clean-libtool cscopelist ctags distclean \
+	distclean-compile distclean-generic distclean-libtool \
+	distclean-tags distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am \
+	install-libLTLIBRARIES install-libpsocksxxincludeHEADERS \
+	install-man install-pdf install-pdf-am install-ps \
+	install-ps-am install-strip installcheck installcheck-am \
+	installdirs maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am tags uninstall \
+	uninstall-am uninstall-libLTLIBRARIES \
+	uninstall-libpsocksxxincludeHEADERS
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/lib/psocksxx/iosocks.cpp b/lib/psocksxx/iosocks.cpp
new file mode 100644
index 0000000..33410fd
--- /dev/null
+++ b/lib/psocksxx/iosocks.cpp
@@ -0,0 +1,55 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#include "iosocks.h"
+
+
+namespace psocksxx {
+
+	bool iosocks::timedout() const throw() {
+
+		// socket stream buffer
+		sockstreambuf * ssb = (sockstreambuf *) rdbuf();
+
+		return ssb->timedout();
+
+	}
+
+
+	const timeval * iosocks::timeout( time_t sec, suseconds_t usec ) throw() {
+
+		// socket stream buffer
+		sockstreambuf * ssb = (sockstreambuf *) rdbuf();
+
+		return ssb->timeout( sec, usec );
+
+	}
+
+
+	void * iosocks::clear_timeout() throw() {
+
+		// socket stream buffer
+		sockstreambuf * ssb = (sockstreambuf *) rdbuf();
+
+		return ssb->clear_timeout();
+
+	}
+
+} /* end of namespace psocksxx */
+
diff --git a/lib/psocksxx/iosocks.h b/lib/psocksxx/iosocks.h
new file mode 100644
index 0000000..293a288
--- /dev/null
+++ b/lib/psocksxx/iosocks.h
@@ -0,0 +1,99 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#ifndef PSOCKSXX_IOSOCKS_H
+#define PSOCKSXX_IOSOCKS_H
+
+#include <psocksxx/sockstreambuf.h>
+
+#include <ios>
+
+
+namespace psocksxx {
+
+	/**
+	*   @brief base class for socket stream controller classes
+	*
+	*   This class holds the common methods for socket stream controller
+	*   classes.
+	*/
+	class iosocks : public virtual std::ios {
+	public:
+
+		/**
+		*   @brief destructor
+		*
+		*   Does nothing.
+		*
+		*/
+		virtual ~iosocks() throw() { };
+
+		/**
+		*   @brief get the timed-out status flag value
+		*   @return boolean @c true if timed-out flag is set or @c false
+		*           otherwise.
+		*
+		*   Returns the timed-out status for the associated socket stream
+		*   buffer.
+		*
+		*/
+		bool timedout() const throw();
+
+		/**
+		*   @brief set the timeout value for stream communications
+		*   @param sec seconds
+		*   @param usec microseconds
+		*   @return a reference to the internal timeout structure
+		*
+		*   Wrapper method for sockstreambuf::timeout() to set the
+		*   timeout value for stream communications.
+		*
+		*   @see sockstreambuf::timeout()
+		*
+		*/
+		const timeval * timeout( time_t sec, suseconds_t usec ) throw();
+
+		/**
+		*   @brief clear the timeout value
+		*   @return a reference to the internal timeout structure which will
+		*           always be a null-pointer (@c 0) after clearing the timeout
+		*
+		*   This will clear any timeout values set for this stream using
+		*   timeout().
+		*
+		*/
+		void * clear_timeout() throw();
+
+	protected:
+
+		/**
+		*   @brief empty default constructor
+		*
+		*   Empty default constructor so that derived classes through virtual
+		*   inheritance does not have to call the constructor.
+		*
+		*/
+		iosocks() throw() { }
+
+	};
+
+} /* end of namespace psocksxx */
+
+#endif /* !PSOCKSXX_IOSOCKS_H */
+
diff --git a/lib/psocksxx/iosockstream.h b/lib/psocksxx/iosockstream.h
new file mode 100644
index 0000000..2b2b0bb
--- /dev/null
+++ b/lib/psocksxx/iosockstream.h
@@ -0,0 +1,79 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#ifndef PSOCKSXX_IOSOCKSTREAM_H
+#define PSOCKSXX_IOSOCKSTREAM_H
+
+#include <psocksxx/isockstream.h>
+#include <psocksxx/osockstream.h>
+
+
+namespace psocksxx {
+
+	/**
+	*   @brief Input and Output controller class for socket streams
+	*
+	*   This merges the two input and output controller
+	*   classes to create a single interface for controlling
+	*   both input and output socket streams.
+	*
+	*/
+	class iosockstream :
+		public isockstream,
+		public osockstream {
+
+	public:
+
+		/**
+		*   @brief constructor
+		*   @param ssb socket stream buffer
+		*
+		*   This constructor simply initialises the parent
+		*   classes with the passed in socket stream buffer
+		*/
+		iosockstream( sockstreambuf * ssb ) throw() :
+			isockstream( ssb ), osockstream( ssb ) {
+			// constructor
+		}
+
+		/**
+		*   @brief destructor
+		*/
+		virtual ~iosockstream() throw() {
+			// destructor
+		}
+
+		/**
+		*   @brief get the timed-out status for this stream
+		*   @return boolean @c true if timed-out flag is set or @c false
+		*           otherwise.
+		*
+		*   Returns the timed-out status.
+		*
+		*/
+		bool timedout() const throw() {
+			return ( isockstream::timedout() || osockstream::timedout() );
+		}
+
+	};
+
+} /* end of namespace psocksxx */
+
+#endif /* !PSOCKSXX_IOSOCKSTREAM_H */
+
diff --git a/lib/psocksxx/isockstream.cpp b/lib/psocksxx/isockstream.cpp
new file mode 100644
index 0000000..a6502b9
--- /dev/null
+++ b/lib/psocksxx/isockstream.cpp
@@ -0,0 +1,36 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#include "isockstream.h"
+
+
+namespace psocksxx {
+
+	isockstream::isockstream( sockstreambuf * ssb ) throw() :
+			std::istream( ssb ) {
+		// constructor
+	}
+
+
+	isockstream::~isockstream() throw() {
+		// destructor
+	}
+
+} /* end of namespace psocksxx */
+
diff --git a/lib/psocksxx/isockstream.h b/lib/psocksxx/isockstream.h
new file mode 100644
index 0000000..2ed0d65
--- /dev/null
+++ b/lib/psocksxx/isockstream.h
@@ -0,0 +1,58 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#ifndef PSOCKSXX_ISOCKSTREAM_H
+#define PSOCKSXX_ISOCKSTREAM_H
+
+#include <psocksxx/iosocks.h>
+
+#include <istream>
+
+
+namespace psocksxx {
+
+	/**
+	*   @brief Input controller class for socket streams
+	*
+	*   This class acts as an interface for getting inputs
+	*   from a psocksxx::sockstreambuf class.
+	*/
+	class isockstream :
+		public virtual iosocks,
+		public std::istream {
+
+	public:
+
+		/**
+		*   @brief constructor
+		*   @param ssb socket stream buffer
+		*
+		*   Create an input socket stream controller instance.
+		*
+		*/
+		isockstream( sockstreambuf * ssb ) throw();
+
+		virtual ~isockstream() throw();  //!< destructor
+
+	};
+
+} /* end of namespace psocksxx */
+
+#endif /* !PSOCKSXX_ISOCKSTREAM_H */
+
diff --git a/lib/psocksxx/lsockaddr.cpp b/lib/psocksxx/lsockaddr.cpp
new file mode 100644
index 0000000..6e854e2
--- /dev/null
+++ b/lib/psocksxx/lsockaddr.cpp
@@ -0,0 +1,48 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#include "lsockaddr.h"
+
+#include <cstring>
+
+
+namespace psocksxx {
+
+	lsockaddr::lsockaddr( const char * path ) throw() {
+
+		// set the socket address family
+		sun_family = sockaddr::af_local;
+
+		// set the socket path
+		strcpy( sun_path, path );
+
+	}
+
+
+	socklen_t lsockaddr::size() const throw() {
+		return sizeof( sockaddr_un );
+	}
+
+
+	::sockaddr * lsockaddr::psockaddr() const throw() {
+		return (::sockaddr *) (sockaddr_un *) this;
+	}
+
+} /* end of namespace psocksxx */
+
diff --git a/lib/psocksxx/lsockaddr.h b/lib/psocksxx/lsockaddr.h
new file mode 100644
index 0000000..a66804f
--- /dev/null
+++ b/lib/psocksxx/lsockaddr.h
@@ -0,0 +1,58 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#ifndef PSOCKSXX_LSOCKADDR_H
+#define PSOCKSXX_LSOCKADDR_H
+
+#include <psocksxx/sockaddr.h>
+#include <sys/un.h>
+
+
+namespace psocksxx {
+
+	/**
+	*   @brief Socket address class for local sockets
+	*
+	*   This class holds the socket addressing structure for local
+	*   (unix) socket communications.
+	*
+	*/
+	class lsockaddr : public sockaddr, public sockaddr_un {
+	public:
+
+		/**
+		*   @brief constructor
+		*   @param path local socket address file path
+		*
+		*   Create a local socket address instance with the given file
+		*   path as the socket address.
+		*
+		*/
+		lsockaddr( const char * path ) throw();
+
+		// abstract method implementations
+		socklen_t size() const throw();
+		::sockaddr* psockaddr() const throw();
+
+	};
+
+} /* end of namespace psocksxx */
+
+#endif /* !PSOCKSXX_LSOCKADDR_H */
+
diff --git a/lib/psocksxx/lsockstream.cpp b/lib/psocksxx/lsockstream.cpp
new file mode 100644
index 0000000..bfe3fed
--- /dev/null
+++ b/lib/psocksxx/lsockstream.cpp
@@ -0,0 +1,65 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#include "lsockstream.h"
+
+
+namespace psocksxx {
+
+	lsockstream::lsockstream() throw( sockexception ) : iosockstream( 0 ) {
+
+		// socket stream buffer instance
+		sockstreambuf * ssb = new sockstreambuf();
+
+		// open local socket
+		ssb->open( sockstreambuf::pf_local, sockstreambuf::sock_stream, sockstreambuf::proto_unspec );
+
+		// update I/O buffer
+		iosockstream::init( ssb );
+
+	}
+
+
+	lsockstream::~lsockstream() throw() {
+
+		// cleanup
+		delete iosockstream::rdbuf();
+
+	}
+
+
+	void lsockstream::connect( const char * path ) throw( sockexception, socktimeoutexception ) {
+
+		lsockaddr saddr( path );
+		sockstreambuf * ssb = (sockstreambuf *) rdbuf();
+
+		ssb->connect( &saddr );
+
+	}
+
+
+	void lsockstream::connect( const lsockaddr * saddr ) throw( sockexception, socktimeoutexception ) {
+
+		sockstreambuf * ssb = (sockstreambuf *) rdbuf();
+		ssb->connect( saddr );
+
+	}
+
+} /* end of namespace psocksxx */
+
diff --git a/lib/psocksxx/lsockstream.h b/lib/psocksxx/lsockstream.h
new file mode 100644
index 0000000..4aa2722
--- /dev/null
+++ b/lib/psocksxx/lsockstream.h
@@ -0,0 +1,84 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#ifndef PSOCKSXX_LSOCKSTREAM_H
+#define PSOCKSXX_LSOCKSTREAM_H
+
+#include <psocksxx/iosockstream.h>
+#include <psocksxx/lsockaddr.h>
+
+
+namespace psocksxx {
+
+	/**
+	*   @brief Local (unix) socket controller class
+	*
+	*   This class acts as a controller for communicating through a
+	*   local (unix) socket and uses an instance of psocksxx::sockstreambuf
+	*   as the underlying / associated sequence.
+	*/
+	class lsockstream : public iosockstream {
+	public:
+
+		/**
+		*   @brief constructor
+		*   @throw psocksxx::sockexception socket exception
+		*
+		*   Initialise a local (unix) communication stream.
+		*
+		*/
+		lsockstream() throw( sockexception );
+
+		/**
+		*   @brief destructor
+		*/
+		virtual ~lsockstream() throw();
+
+		/**
+		*   @brief connect to a local socket
+		*   @param path local socket path
+		*   @throw psocksxx::sockexception socket exception
+		*   @throw psocksxx::socktimeoutexception connection timeout
+		*          exception
+		*
+		*   Connect a to local socket at the given path. It is assumed
+		*   that the socket is ready to accept connections.
+		*
+		*/
+		void connect( const char * path ) throw( sockexception, socktimeoutexception );
+
+		/**
+		*   @brief connect to a local socket
+		*   @param saddr local socket address instance
+		*   @throw psocksxx::sockexception socket exception
+		*   @throw psocksxx::socktimeoutexception connection timeout
+		*          exception
+		*
+		*   Connect to a local socket using the passed in socket address
+		*   object.
+		*
+		*/
+		void connect( const lsockaddr * saddr ) throw( sockexception, socktimeoutexception );
+
+	};
+
+} /* end of namespace psocksxx */
+
+#endif /* !PSOCKSXX_LSOCKSTREAM_H */
+
diff --git a/lib/psocksxx/nsockaddr.cpp b/lib/psocksxx/nsockaddr.cpp
new file mode 100644
index 0000000..08d9969
--- /dev/null
+++ b/lib/psocksxx/nsockaddr.cpp
@@ -0,0 +1,137 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#include "nsockaddr.h"
+#include "sockstreambuf.h"
+
+#include <netdb.h>
+#include <cstring>
+
+
+namespace psocksxx {
+
+	nsockaddr::nsockaddr( const char * node, unsigned short port ) throw( sockexception ) {
+
+		// set the socket address family
+		sin_family = sockaddr::af_inet;
+
+		// set the port
+		sin_port = htons( port );
+
+		// set the address
+		sin_addr.s_addr = resolve_node( node );
+
+		// zero out internals
+		memset( sin_zero, 0, sizeof( sin_zero ) );
+
+	}
+
+
+	nsockaddr::nsockaddr( unsigned short port ) throw() {
+
+		// set the socket address family
+		sin_family = sockaddr::af_inet;
+
+		// set the port
+		sin_port = htons( port );
+
+		// set the address
+		sin_addr.s_addr = INADDR_ANY;
+
+		// zero out internals
+		memset( sin_zero, 0, sizeof( sin_zero ) );
+
+	}
+
+
+	nsockaddr::nsockaddr( const char * node, const char * service ) throw( sockexception ) {
+
+		int status;
+		addrinfo hints;
+		addrinfo * result;
+		sockaddr_in * sinaddr;
+
+		// empty the hints structure
+		memset( &hints, 0, sizeof( hints ) );
+
+		// setup hints
+		hints.ai_family   = sockaddr::af_inet;
+		hints.ai_socktype = sockstreambuf::sock_stream;
+
+		// translate node and service into a network address
+		if ( ( status = ( getaddrinfo( node, service, &hints, &result ) ) ) != 0 ) {
+			throw sockexception( gai_strerror( status ) );
+		}
+
+		// grab the address info we need
+		sinaddr    = (sockaddr_in *) result->ai_addr;
+		sin_family = sockaddr::af_inet;
+		sin_addr   = sinaddr->sin_addr;
+		sin_port   = sinaddr->sin_port;
+
+		// zero out internals
+		memset( sin_zero, 0, sizeof( sin_zero ) );
+
+		// cleanup
+		freeaddrinfo( result );
+
+	}
+
+
+	in_addr_t nsockaddr::resolve_node( const char * node ) throw( sockexception ) {
+
+		int status;
+		addrinfo hints;
+		addrinfo * result;
+		in_addr_t in_addr;
+
+		// empty the hints structure
+		memset( &hints, 0, sizeof( hints ) );
+
+		// setup hints
+		hints.ai_family   = sockaddr::af_inet;
+		hints.ai_socktype = sockstreambuf::sock_stream;
+
+		// resolve node
+		if ( ( status = ( getaddrinfo( node, 0, &hints, &result ) ) ) != 0 ) {
+			throw sockexception( gai_strerror( status ) );
+		}
+
+		// grab the address info we need
+		in_addr = ( (sockaddr_in *) result->ai_addr )->sin_addr.s_addr;
+
+		// cleanup
+		freeaddrinfo( result );
+
+		return in_addr;
+
+	}
+
+
+	socklen_t nsockaddr::size() const throw() {
+		return sizeof( sockaddr_in );
+	}
+
+
+	::sockaddr * nsockaddr::psockaddr() const throw() {
+		return (::sockaddr *) (sockaddr_in *) this;
+	}
+
+} /* end of namespace psocksxx */
+
diff --git a/lib/psocksxx/nsockaddr.h b/lib/psocksxx/nsockaddr.h
new file mode 100644
index 0000000..d8f7f75
--- /dev/null
+++ b/lib/psocksxx/nsockaddr.h
@@ -0,0 +1,99 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#ifndef PSOCKSXX_NSOCKADDR_H
+#define PSOCKSXX_NSOCKADDR_H
+
+#include <psocksxx/sockaddr.h>
+#include <psocksxx/sockexception.h>
+#include <netinet/in.h>
+
+
+namespace psocksxx {
+
+	/**
+	*   @brief Socket address class for IPv4 addresses
+	*
+	*   This class holds the socket addressing structure for IPv4
+	*   socket communications.
+	*
+	*/
+	class nsockaddr : public sockaddr, public sockaddr_in {
+	public:
+
+		/**
+		*   @brief constructor
+		*   @param node node (host name or IP)
+		*   @param port port number
+		*   @throw psocksxx::sockexception socket exception
+		*
+		*   Create a IPv4 socket address instance with the give node
+		*   and port information.
+		*
+		*/
+		nsockaddr( const char * node, unsigned short port ) throw( sockexception );
+
+		/**
+		*   @brief constructor
+		*   @param port port number
+		*
+		*   Create a IPv4 socket address instance with the given port
+		*   and the node (host/IP) will be any available interface on
+		*   the host computer.
+		*
+		*/
+		nsockaddr( unsigned short port ) throw();
+
+		/**
+		*   @brief constructor
+		*   @param node node (host name or IP)
+		*   @param service port number of the service name (e.g. "http")
+		*   @throw psocksxx::sockexception socket exception
+		*
+		*   Create a IPv4 socket address instance with the give node
+		*   and service information.
+		*
+		*/
+		nsockaddr( const char * node, const char * service ) throw( sockexception );
+
+		// abstract method implementations
+		socklen_t size() const throw();
+		::sockaddr* psockaddr() const throw();
+
+
+	protected:
+
+		/**
+		*   @brief convert a node name to a IPv4 address
+		*   @param node node (host name or IP)
+		*   @throw psocksxx::sockexception socket exception
+		*   @return IPv4 address in network byte order
+		*
+		*   Helper function to convert a node name into a IPv4 network
+		*   address.
+		*
+		*/
+		in_addr_t resolve_node( const char * node ) throw( sockexception );
+
+	};
+
+} /* end of namespace psockxx */
+
+#endif /* !PSOCKSXX_NSOCKADDR_H */
+
diff --git a/lib/psocksxx/nsockstream.cpp b/lib/psocksxx/nsockstream.cpp
new file mode 100644
index 0000000..b3ee9cc
--- /dev/null
+++ b/lib/psocksxx/nsockstream.cpp
@@ -0,0 +1,116 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#include "nsockstream.h"
+
+
+namespace psocksxx {
+
+	nsockstream::nsockstream( sockstreambuf::socket_type_t type, sockstreambuf::socket_protocol_t proto )
+		throw ( sockexception ) : iosockstream( 0 ) {
+
+		// socket stream buffer instance
+		sockstreambuf * ssb = new sockstreambuf();
+
+		// open the socket communication
+		ssb->open( sockstreambuf::pf_inet, type, proto );
+
+		// update I/O buffer
+		iosockstream::init( ssb );
+
+	}
+
+
+	nsockstream::nsockstream( sockstreambuf * ssb ) throw() : iosockstream( ssb ) {
+
+	}
+
+
+	nsockstream::~nsockstream() throw() {
+
+		// cleanup
+		delete iosockstream::rdbuf();
+
+	}
+
+
+	void nsockstream::connect( const nsockaddr * saddr ) throw( sockexception, socktimeoutexception ) {
+
+		// socket stream buffer
+		sockstreambuf * ssb = (sockstreambuf *) rdbuf();
+
+		// connect
+		ssb->connect( saddr );
+
+	}
+
+
+	void nsockstream::connect( const char * node, unsigned int port ) throw( sockexception, socktimeoutexception ) {
+
+		// network address
+		nsockaddr naddr( node, port );
+
+		// connect
+		connect( &naddr );
+
+	}
+
+
+	void nsockstream::bind( const nsockaddr * saddr, bool reuse_addr ) throw( sockexception ) {
+
+		// socket stream buffer
+		sockstreambuf * ssb = (sockstreambuf *) rdbuf();
+
+		// bind
+		ssb->bind( saddr, reuse_addr );
+
+	}
+
+
+	void nsockstream::listen( int backlog ) throw( sockexception ) {
+
+		// socket stream buffer
+		sockstreambuf * ssb = (sockstreambuf *) rdbuf();
+
+		if ( backlog == 0 ) {
+			ssb->listen();
+		} else {
+			ssb->listen( backlog );
+		}
+
+	}
+
+
+	nsockstream * nsockstream::accept() throw( sockexception ) {
+
+		// socket stream buffers
+		sockstreambuf * ssb = (sockstreambuf *) rdbuf();
+		sockstreambuf * cl_ssb;
+
+		// accept
+		sockstreambuf::socket_t cl_sock = ssb->accept();
+		cl_ssb = new sockstreambuf( cl_sock );
+
+		// return
+		return new nsockstream( cl_ssb );
+
+	}
+
+} /* end of namespace psocksxx */
+
diff --git a/lib/psocksxx/nsockstream.h b/lib/psocksxx/nsockstream.h
new file mode 100644
index 0000000..9d7e5a2
--- /dev/null
+++ b/lib/psocksxx/nsockstream.h
@@ -0,0 +1,143 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#ifndef PSOCKSXX_NSOCKSTREAM_H
+#define PSOCKSXX_NSOCKSTREAM_H
+
+#include <psocksxx/iosockstream.h>
+#include <psocksxx/nsockaddr.h>
+
+
+namespace psocksxx {
+
+	/**
+	*   @brief Network (IPv4) controller class
+	*
+	*   This is the base class for network (IP version 4)
+	*   communications streams.
+	*
+	*/
+	class nsockstream : public iosockstream {
+	public:
+
+		/**
+		*   @brief constructor
+		*   @param type socket communications type
+		*   @param proto socket communications protocol
+		*   @throw psocksxx::sockexception socket exception
+		*
+		*   Open a network (IPv4) communications stream with the
+		*   passed in type and protocol.
+		*/
+		nsockstream( sockstreambuf::socket_type_t type, sockstreambuf::socket_protocol_t proto ) throw( sockexception );
+
+		/**
+		*   @brief constructor
+		*   @param ssb initialised socket stream buffer instance
+		*
+		*   Initialise a network socket stream by using the passed in
+		*   socket stream buffer, @c ssb, as the associated sequence
+		*   which is assumed to be initialised with the correct type
+		*   and protocol. The class destructor will delete the psocksxx::sockstreambuf
+		*   instance pointed by @c ssb.
+		*
+		*/
+		nsockstream( sockstreambuf * ssb ) throw();
+
+		/**
+		*   @brief destructor
+		*/
+		virtual ~nsockstream() throw();
+
+		/**
+		*   @brief connect to a network address
+		*   @param saddr destination address information
+		*   @throw psocksxx::sockexception socket exception
+		*   @throw psocksxx::socktimeoutexception connection timeout
+		*          exception
+		*
+		*   Connect to a IPv4 communication end point making this stream
+		*   ready for I/O.
+		*
+		*/
+		void connect( const nsockaddr * saddr ) throw( sockexception, socktimeoutexception );
+
+		/**
+		*   @brief connect to a network address
+		*   @param node node (host name or IP)
+		*   @param port port number
+		*   @throw psocksxx::sockexception socket exception
+		*   @throw psocksxx::socktimeoutexception connection timeout
+		*          exception
+		*
+		*   Connect to a IPv4 communication end point making this stream
+		*   ready for I/O.
+		*
+		*/
+		void connect( const char * node, unsigned int port ) throw( sockexception, socktimeoutexception );
+
+		/**
+		*   @brief bind the stream to a network address
+		*   @param saddr address information to bind to
+		*   @param reuse_addr allow address to be re-used
+		*   @throw psocksxx::sockexception socket exception
+		*
+		*   This binds the network socket stream to the specified network
+		*   address. If you want to try to bind to any socket that is not
+		*   actively listening (e.g. TIME_WAIT) then set the @c reuse_addr
+		*   parameter to be @c true.
+		*
+		*/
+		void bind( const nsockaddr * saddr, bool reuse_addr = false ) throw( sockexception );
+
+		/**
+		*   @brief make this stream passive and ready to accept connections
+		*   @param backlog maximum length of the queue for pending connections
+		*                  and if this value is 0 (default) then it assumes
+		*                  system default
+		*
+		*   @throw psocksxx::sockexception socket exception
+		*
+		*   Make this network stream passive and ready to accept connections.
+		*   Before calling this method the stream must be bound to a
+		*   network address using the bind() method.
+		*
+		*/
+		void listen( int backlog = 0 ) throw( sockexception );
+
+		/**
+		*   @brief accept a connection on a listening (passive) stream
+		*   @throw psocksxx::sockexception socket exception
+		*   @return a new stream instance for the accepted connection
+		*
+		*   This method will accept an incoming connection on a listening
+		*   stream and return a newly created stream instance that can
+		*   be used to communicate with the accepted client connection.
+		*   Note that the returned stream instance must be deleted by the
+		*   caller.
+		*
+		*/
+		nsockstream * accept() throw( sockexception );
+
+	};
+
+} /* end of namespace psocksxx */
+
+#endif /* !PSOCKSXX_NSOCKSTEAM_H */
+
diff --git a/lib/psocksxx/osockstream.cpp b/lib/psocksxx/osockstream.cpp
new file mode 100644
index 0000000..1e7eabb
--- /dev/null
+++ b/lib/psocksxx/osockstream.cpp
@@ -0,0 +1,36 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#include "osockstream.h"
+
+
+namespace psocksxx {
+
+	osockstream::osockstream( sockstreambuf * ssb ) throw() :
+			std::ostream( ssb ) {
+		// constructor
+	}
+
+
+	osockstream::~osockstream() throw() {
+		// destructor
+	}
+
+} /* end of namespace psocksxx */
+
diff --git a/lib/psocksxx/osockstream.h b/lib/psocksxx/osockstream.h
new file mode 100644
index 0000000..f245cee
--- /dev/null
+++ b/lib/psocksxx/osockstream.h
@@ -0,0 +1,58 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#ifndef PSOCKSXX_OSOCKSTREAM_H
+#define PSOCKSXX_OSOCKSTREAM_H
+
+#include <psocksxx/iosocks.h>
+
+#include <ostream>
+
+
+namespace psocksxx {
+
+	/**
+	*   @brief Output controller class for socket streams
+	*
+	*   This class acts as an interface for sendding outputs
+	*   to a psocksxx::sockstreambuf class
+	*/
+	class osockstream :
+		public virtual iosocks,
+		public std::ostream {
+
+	public:
+
+		/**
+		*   @brief constructor
+		*   @param ssb socket stream buffer
+		*
+		*   Create and output socket stream controller instance
+		*
+		*/
+		osockstream( sockstreambuf * ssb ) throw();
+
+		virtual ~osockstream() throw();  //!< destructor
+
+	};
+
+} /* end of namespace psocksxx */
+
+#endif /* !PSOCKS_OSOCKSTREAM_H */
+
diff --git a/lib/psocksxx/sockaddr.h b/lib/psocksxx/sockaddr.h
new file mode 100644
index 0000000..bfe8af7
--- /dev/null
+++ b/lib/psocksxx/sockaddr.h
@@ -0,0 +1,76 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#ifndef PSOCKSXX_SOCKADDR_H
+#define PSOCKSXX_SOCKADDR_H
+
+#include <sys/socket.h>
+
+
+namespace psocksxx {
+
+	/**
+	*   @brief Socket address base class
+	*
+	*   This abstract class acts as an interface for accessing derived
+	*   socket address structures.
+	*
+	*/
+	class sockaddr {
+	public:
+
+		/** socket address types definition */
+		enum address_t {
+			af_unspec   = AF_UNSPEC,    /*! unspecified */
+			af_local    = AF_LOCAL,     /*! local addresses */
+			af_inet     = AF_INET       /*! network addresses */
+		};
+
+
+		/**
+		*   @brief destructor
+		*/
+		virtual ~sockaddr() { };
+
+		/**
+		*   @brief get POSIX socket address size
+		*   @return POSIX address size
+		*
+		*   Helper function to get the size of the related POSIX socket
+		*   address.
+		*
+		*/
+		virtual socklen_t size() const throw() =0;
+
+		/**
+		*   @brief get a POSIX socket address structure
+		*   @return POSIX socket address structure
+		*
+		*   Helper function to get a pointer to the POSIX socket
+		*   address structure relating to this socket address instance.
+		*
+		*/
+		virtual ::sockaddr * psockaddr() const throw() =0;
+
+	};
+
+} /* end of namespace psocksxx */
+
+#endif /* !PSOCKSXX_SOCKADDR_H */
+
diff --git a/lib/psocksxx/sockexception.cpp b/lib/psocksxx/sockexception.cpp
new file mode 100644
index 0000000..30affc7
--- /dev/null
+++ b/lib/psocksxx/sockexception.cpp
@@ -0,0 +1,60 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#include "sockexception.h"
+
+#include <cerrno>
+#include <cstring>
+
+
+namespace psocksxx {
+
+	sockexception::sockexception( const char * message ) throw() {
+
+		// copy system error
+		_errno   = errno;
+		_sys_msg = strerror( _errno );
+
+		// sanity check
+		if ( message == 0 ) {
+
+			// use system error message if no user message is passed in
+			_message = _sys_msg;
+
+		} else {
+
+			// use the user message
+			_message = message;
+
+		}
+
+	}
+
+
+	sockexception::~sockexception() throw() {
+
+	}
+
+
+	const char * sockexception::what() const throw() {
+		return _message.c_str();
+	}
+
+} /* end of namespace psocksxx */
+
diff --git a/lib/psocksxx/sockexception.h b/lib/psocksxx/sockexception.h
new file mode 100644
index 0000000..95c50de
--- /dev/null
+++ b/lib/psocksxx/sockexception.h
@@ -0,0 +1,76 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#ifndef PSOCKSXX_SOCKEXCEPTION_H
+#define PSOCKSXX_SOCKEXCEPTION_H
+
+#include <exception>
+#include <cstddef>
+#include <string>
+
+
+namespace psocksxx {
+
+	/**
+	*   @brief Socket exception
+	*
+	*   This is the base class for all socket exceptions.
+	*/
+	class sockexception : public std::exception {
+	public:
+		/**
+		*   @brief constructor
+		*
+		*   Create an instance with the passed in error message.
+		*   If a message is not passed in or is equal to @c 0 then
+		*   the system error message is used.
+		*
+		*   @param message (optional) user error message
+		*/
+		sockexception( const char * message = 0 ) throw();
+
+		virtual ~sockexception() throw();   //!< destructor
+
+		/**
+		*   @brief Returns exception message
+		*
+		*   Returns a C-Style character string describing the
+		*   exception.
+		*
+		*   @return exception message
+		*   @sa sockexception() constructor
+		*/
+		const char * what() const throw();
+
+	protected:
+		/** user exception message */
+		std::string _message;
+
+		/** system error number */
+		int _errno;
+
+		/** system error message */
+		std::string _sys_msg;
+
+	};
+
+} /* end of namespace psocksxx */
+
+#endif /* !PSOCKSXX_SOCKEXCEPTION_H */
+
diff --git a/lib/psocksxx/sockstreambuf.cpp b/lib/psocksxx/sockstreambuf.cpp
new file mode 100644
index 0000000..c0a0c81
--- /dev/null
+++ b/lib/psocksxx/sockstreambuf.cpp
@@ -0,0 +1,523 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#include "sockstreambuf.h"
+
+#include <fcntl.h>
+#include <cstring>
+
+// Mac OSX does not define MSG_NOSIGNAL
+#ifndef MSG_NOSIGNAL
+#define MSG_NOSIGNAL 0
+#endif
+
+
+namespace psocksxx {
+
+	sockstreambuf::sockstreambuf() throw() :
+			_socket( -1 ), _bufsize( SOCKSTREAMBUF_SIZE ),
+			_putbacksize( SOCKSTREAMBUF_PUTBACK_SIZE ) {
+
+		// initialise defaults
+		init_defaults();
+
+		// initialise internal buffers
+		init_buffers();
+
+	}
+
+
+	sockstreambuf::sockstreambuf( socket_t socket ) throw() :
+			_bufsize( SOCKSTREAMBUF_SIZE ),
+			_putbacksize( SOCKSTREAMBUF_PUTBACK_SIZE ) {
+
+		// update local copy of the socket data
+		_socket = socket;
+
+		// initialise defaults
+		init_defaults();
+
+		// initialise internal buffers
+		init_buffers();
+
+	}
+
+
+	sockstreambuf::~sockstreambuf() {
+
+		// close any open sockets
+		close();
+
+		// cleanup buffers
+		cleanup_buffers();
+
+		// cleanup timeout
+		if ( _timeout != 0 ) {
+			delete _timeout;
+		}
+
+	}
+
+
+	void sockstreambuf::init_defaults() throw() {
+
+		// timeout structure reference
+		_timeout = 0;
+
+		// timed-out status
+		_timed_out = false;
+
+	}
+
+
+	void sockstreambuf::open( socket_domain_t domain, socket_type_t type, socket_protocol_t proto ) throw( sockexception ) {
+
+		// create a communication endpoint
+		_socket = ::socket( domain, type, proto );
+
+		// sanity check
+		if ( _socket == -1 ) {
+			throw sockexception();
+		}
+
+#ifdef SO_NOSIGPIPE
+		// suppress SIGPIPE (Mac OSX)
+		int optval = 1;
+		if ( setsockopt( _socket, SOL_SOCKET, SO_NOSIGPIPE, &optval, sizeof( optval ) ) != 0 ) {
+			throw sockexception();
+		}
+#endif
+
+	}
+
+
+	void sockstreambuf::close() throw() {
+
+		// sanity check
+		if ( _socket > -1 ) {
+
+			// sync
+			sync();
+
+			// close the socket
+			::close( _socket );
+
+			// update socket data
+			_socket = -1;
+
+		}
+
+	}
+
+
+	void sockstreambuf::connect( const sockaddr * dest_addr, unsigned int timeout ) throw( sockexception, socktimeoutexception ) {
+
+		timeval t_val;
+		timeval * t_ptr;
+
+		// check timeout value
+		if ( timeout > 0 ) {
+
+			// setup timeval structure
+			t_val.tv_sec  = timeout;
+			t_val.tv_usec = 0;
+
+			// update pointer
+			t_ptr = &t_val;
+
+		} else {
+
+			// fall-back to class value
+			t_ptr = _timeout;
+
+		}
+
+		// call overloaded connect()
+		connect( dest_addr, t_ptr );
+
+	}
+
+
+	void sockstreambuf::connect( const sockaddr * dest_addr, timeval * timeout ) throw( sockexception, socktimeoutexception ) {
+
+		// copy current flags
+		int s_flags = fcntl( _socket, F_GETFL );
+
+		// sanity check - affectively we ignore the fcntl() error
+		if ( s_flags == -1 ) {
+			s_flags = 0;
+		}
+
+		// setup timeout if needed
+		if ( timeout > 0 ) {
+
+			// make the socket non-blocking
+			if ( fcntl( _socket, F_SETFL, ( s_flags | O_NONBLOCK ) ) == -1 ) {
+				throw sockexception();
+			}
+
+		}
+
+		// connect
+		if ( ::connect( _socket, dest_addr->psockaddr(), dest_addr->size() ) != 0 ) {
+			throw sockexception();
+		}
+
+		// check for timeout if set
+		if ( timeout > 0 ) {
+
+			if (! ready( timeout ) ) {
+
+				// shutdown
+				::shutdown( _socket, 2 );
+
+				// throw a timeout exception
+				if ( _timed_out ) {
+					throw socktimeoutexception( timeout, "sockstreambuf::connect()" );
+				}
+
+			}
+
+			// reset flags back to what they were
+			fcntl( _socket, F_SETFL, s_flags );
+
+		}
+
+	}
+
+
+	void sockstreambuf::bind( const sockaddr * bind_addr, bool reuse_addr ) throw( sockexception ) {
+
+		// set socket options - SO_REUSEADDR
+		if ( reuse_addr ) {
+
+			int optval = 1;
+			if ( setsockopt( _socket, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof( optval ) ) != 0 ) {
+				throw sockexception();
+			}
+
+		}
+
+		// bind
+		if ( ::bind( _socket, bind_addr->psockaddr(), bind_addr->size() ) != 0 ) {
+			throw sockexception();
+		}
+
+	}
+
+
+	void sockstreambuf::listen( int backlog ) throw( sockexception ) {
+
+		if ( ::listen( _socket, backlog ) != 0 ) {
+			throw sockexception();
+		}
+
+	}
+
+
+	sockstreambuf::socket_t sockstreambuf::accept() throw( sockexception ) {
+
+		socket_t peer_sock;
+
+		if ( ( peer_sock = ::accept( _socket, 0, 0 ) ) < 0 ) {
+			throw sockexception();
+		}
+
+		return peer_sock;
+
+	}
+
+
+	const sockstreambuf::socket_t & sockstreambuf::socket() const throw() {
+		return _socket;
+	}
+
+
+	const timeval * sockstreambuf::timeout( time_t sec, suseconds_t usec ) throw() {
+
+		_timeout = new timeval;
+
+		_timeout->tv_sec  = sec;
+		_timeout->tv_usec = usec;
+
+		return _timeout;
+
+	}
+
+
+	void * sockstreambuf::clear_timeout() throw() {
+
+		// sanity check
+		if ( _timeout != 0 ) {
+
+			// delete structure
+			delete _timeout;
+
+			// set a null pointer
+			_timeout = 0;
+
+		}
+
+		return _timeout;
+
+	}
+
+
+	bool sockstreambuf::timedout() const throw() {
+		return _timed_out;
+	}
+
+
+	void sockstreambuf::init_buffers() throw() {
+
+		// allocate output buffer space
+		char * pbuf = new char[_bufsize];
+
+		// allocate input buffer space
+		char * gbuf = new char[_bufsize];
+
+		// setup output buffer
+		setp( pbuf, pbuf + ( _bufsize - 1 ) );
+
+		// setup input buffer
+		setg( gbuf, gbuf, gbuf );
+
+	}
+
+
+	void sockstreambuf::cleanup_buffers() throw() {
+
+		// cleanup output buffer
+		delete [] pbase();
+
+		// cleanup input buffer
+		delete [] eback();
+
+	}
+
+
+	int sockstreambuf::flush() throw( socktimeoutexception ) {
+
+		int flush_size = pptr() - pbase();
+		bool b_ready   = false;
+
+		// sanity check
+		if ( flush_size > 0 ) {
+
+			try {
+				b_ready = ready( _timeout, false, true );
+			} catch ( sockexception &e ) {
+				// couldn't select the socket
+				return eof;
+			}
+
+			if ( b_ready ) {
+				if ( ::send( _socket, pbase(), flush_size, MSG_NOSIGNAL ) == flush_size ) {
+					pbump( -flush_size );
+					return flush_size;
+				}
+			} else {
+
+				// timed out - throw a timeout exception
+				if ( _timed_out ) {
+					throw socktimeoutexception( _timeout, "sockstreambuf::flush()" );
+				}
+
+			}
+
+		}
+
+		return eof;
+
+	}
+
+
+	int sockstreambuf::sync() throw() {
+
+		try {
+
+			// flush buffer
+			if ( flush() != eof ) {
+				return 0;
+			}
+
+		} catch ( socktimeoutexception &e ) {
+			// communication timeout - suppress the exception
+		}
+
+		// sync failed
+		return -1;
+
+	}
+
+
+	int sockstreambuf::overflow( int c ) throw( socktimeoutexception ) {
+
+		// sanity check
+		if ( c != eof ) {
+
+			// insert the overflowed char into the buffer
+			*pptr() = c;
+			pbump( 1 );
+
+		}
+
+		// flush the buffer - could throw a timeout exception
+		if ( flush() == eof ) {
+			return eof;
+		}
+
+		return c;
+
+	}
+
+
+	int sockstreambuf::underflow() throw( socktimeoutexception ) {
+
+		// sanity check - read position before end-of-buffer?
+		if ( gptr() < egptr() ) {
+			return traits_type::to_int_type( *gptr() );
+		}
+
+
+		char * read_buffer;
+		size_t putback_size  = gptr() - eback();
+		size_t readable_size = 0;
+
+		bool b_ready = false;
+		ssize_t read_size = 0;
+
+		// sanitise putback size
+		if ( putback_size > _putbacksize ) {
+			putback_size = _putbacksize;
+		}
+
+		// update read buffer position
+		read_buffer = eback() + putback_size;
+
+		// calculate read buffer size
+		readable_size = _bufsize - putback_size;
+
+		// check for availability
+		try {
+			b_ready = ready( _timeout, true, false );
+		} catch ( sockexception &e ) {
+			// couldn't select the socket
+			return eof;
+		}
+
+		// read from socket
+		if ( b_ready ) {
+			read_size = ::read( _socket, read_buffer, readable_size );
+		} else {
+
+			// timed out - throw a timeout exception
+			if ( _timed_out ) {
+				throw socktimeoutexception( _timeout, "sockstreambuf::overflow()" );
+			}
+
+		}
+
+		// sanity check
+		if ( read_size <= 0 ) {
+			return eof;
+		}
+
+		// update pointers
+		setg( eback(), read_buffer, read_buffer + read_size );
+
+		// return next character
+		return traits_type::to_int_type( *gptr() );
+
+	}
+
+
+	bool sockstreambuf::ready( timeval * timeout, bool chk_read, bool chk_write ) throw( sockexception ) {
+
+		// sanity check
+		if ( _socket < 0 ) {
+			throw sockexception( "sockstreambuf::ready(): invalid socket" );
+		}
+
+
+		fd_set  fds;
+		fd_set * read_fds  = 0;
+		fd_set * write_fds = 0;
+
+		// timespec structure
+		timespec * t_spec = 0;
+
+
+		// set the fd_set so we only check our socket
+		memset( &fds, 0, sizeof( fds ) );
+		FD_SET( _socket, &fds );
+
+		// set the actions we want to check
+		if ( chk_read ) {
+			read_fds = &fds;
+		}
+
+		if ( chk_write ) {
+			write_fds = &fds;
+		}
+
+		// reset timed-out status
+		_timed_out = false;
+
+		// create timespec structure from timeval structure
+		if ( timeout != 0 ) {
+			t_spec = new timespec;
+			t_spec->tv_sec  = timeout->tv_sec;
+			t_spec->tv_nsec = ( timeout->tv_usec * 1000 );
+		}
+
+		// select the socket
+		int s_status = ::pselect( ( _socket + 1 ), read_fds, write_fds, 0, t_spec, 0 );
+
+		// cleanup
+		if ( t_spec != 0  ) {
+			delete t_spec;
+		}
+
+		// check status
+		switch ( s_status ) {
+			case 0:
+				// timed-out
+				_timed_out = true;
+				break;
+
+			case -1:
+				throw sockexception();
+				break;
+
+			default:
+				break;
+		}
+
+		// sanity check
+		if ( FD_ISSET( _socket, &fds ) ) {
+			return true;
+		}
+
+		return false;
+
+	}
+
+} /* end of namespace psocksxx */
+
diff --git a/lib/psocksxx/sockstreambuf.h b/lib/psocksxx/sockstreambuf.h
new file mode 100644
index 0000000..ac1ae2f
--- /dev/null
+++ b/lib/psocksxx/sockstreambuf.h
@@ -0,0 +1,345 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#ifndef PSOCKSXX_SOCKSTREAMBUF_H
+#define PSOCKSXX_SOCKSTREAMBUF_H
+
+#include <psocksxx/socktimeoutexception.h>
+#include <psocksxx/sockaddr.h>
+
+#include <streambuf>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <unistd.h>
+
+#ifndef SOCKSTREAMBUF_SIZE
+#define SOCKSTREAMBUF_SIZE 1024
+#endif
+
+#ifndef SOCKSTREAMBUF_PUTBACK_SIZE
+#define SOCKSTREAMBUF_PUTBACK_SIZE 8
+#endif
+
+
+namespace psocksxx {
+
+	/**
+	*   @brief Socket stream buffer class
+	*
+	*   This buffer class associates its both input and output
+	*   sequences with an external POSIX socket.
+	*/
+	class sockstreambuf : public std::streambuf {
+	public:
+
+		/** socket data type definition */
+		typedef int socket_t;
+
+		/** socket end-of-file type */
+		enum eof_t {
+			eof = -1       /*!< end of file */
+		};
+
+		/** socket domains type definition */
+		enum socket_domain_t {
+			pf_local   = PF_LOCAL,        /*!< Host-internal protocols */
+			pf_inet    = PF_INET,         /*!< Internet version 4 protocols */
+			pf_route   = PF_ROUTE,        /*!< Internal Routing protocol */
+			pf_key     = PF_KEY,          /*!< Internal key-management function */
+			pf_inet6   = PF_INET6         /*!< Internet version 6 protocols */
+		};
+
+		/** socket types type definition */
+		enum socket_type_t {
+			sock_stream     = SOCK_STREAM,
+			sock_dgram      = SOCK_DGRAM,
+			sock_raw        = SOCK_RAW,
+			sock_rdm        = SOCK_RDM,
+			sock_seqpacket  = SOCK_SEQPACKET
+		};
+
+		/** socket protocols type definition */
+		enum socket_protocol_t {
+			proto_unspec    = 0,               /*!< Unspecified system default */
+			ipproto_ip      = IPPROTO_IP,      /*!< Internet protocol */
+			ipproto_ipv6    = IPPROTO_IPV6,    /*!< Internet Protocol Version 6 */
+			ipproto_icmp    = IPPROTO_ICMP,    /*!< Control message protocol */
+			ipproto_raw     = IPPROTO_RAW,     /*!< Raw IP Packets Protocol */
+			ipproto_tcp     = IPPROTO_TCP,     /*!< Transmission control protocol */
+			ipproto_udp     = IPPROTO_UDP      /*!< User datagram protocol */
+		};
+
+
+		sockstreambuf() throw();          //!< constructor
+		virtual ~sockstreambuf();         //!< destructor
+
+		/**
+		*   @brief overloaded constructor
+		*   @param socket socket data
+		*
+		*   Create an instance with the passed in sockstreambuf::socket_t
+		*   type socket. It is assumed that the socket is initialised and
+		*   ready to use.
+		*
+		*/
+		sockstreambuf( socket_t socket ) throw();
+
+		/**
+		*   @brief get internal socket data
+		*   @return socket data
+		*
+		*   Returns a read-only reference to the internal POSIX socket
+		*   data.
+		*
+		*/
+		const socket_t & socket() const throw();
+
+		/**
+		*   @brief open a socket
+		*   @param domain communications domain for the socket
+		*   @param type socket communications type
+		*   @param proto socket communications protocol
+		*   @throw psocksxx::sockexception socket exception
+		*
+		*   Open a socket and initialise socket communications.
+		*
+		*/
+		void open( socket_domain_t domain, socket_type_t type, socket_protocol_t proto = proto_unspec ) throw( sockexception );
+
+		/**
+		*   @brief close open sockets
+		*
+		*   Close any open socket connections used by this buffer. This
+		*   will also flush any data in the buffer before closing.
+		*
+		*/
+		void close() throw();
+
+		/**
+		*   @brief flush the socket output buffer
+		*   @return number of characters flushed
+		*   @throw psocksxx::socktimeoutexception on socket timeout
+		*
+		*   Flush the socket buffer by writing date into the
+		*   socket and returns the number of characters flushed.
+		*   If the output buffer is empty sockstreambuf::eof is returned.
+		*
+		*/
+		virtual int flush() throw( socktimeoutexception );
+
+
+		/**
+		*   @brief initiate a connection on a socket
+		*   @param dest_addr destination address to connect to
+		*   @param timeout connection timeout value in seconds
+		*   @throw psocksxx::sockexception socket exception
+		*   @throw psocksxx::socktimeoutexception connection timeout
+		*          exception
+		*
+		*   Initiate a connection on a socket previously opened using
+		*   open() method. If the timeout value is 0 (default) then
+		*   the timeouts are ignored.
+		*
+		*/
+		void connect( const sockaddr * dest_addr, unsigned int timeout = 0 ) throw( sockexception, socktimeoutexception );
+
+		/**
+		*   @brief initiate a connection on a socket
+		*   @param dest_addr destination address to connect to
+		*   @param timeout connection timeout value as a reference to a
+		*          @c timeval structure
+		*
+		*   @throw psocksxx::sockexception socket exception
+		*   @throw psocksxx::socktimeoutexception connection timeout
+		*          exception
+		*
+		*   Initiate a connection on a socket previously opened using
+		*   open() method.
+		*
+		*/
+		void connect( const sockaddr * dest_addr, timeval * timeout ) throw( sockexception, socktimeoutexception );
+
+		/**
+		*   @brief bind the socket to a specified address
+		*   @param bind_addr address to bind to
+		*   @param reuse_addr allow address to be re-used
+		*   @throw psocksxx::sockexception socket exception
+		*
+		*   After a socket is configured using open() this method can
+		*   be used to assign an address to it. If @c reuse_addr is set
+		*   to @c true then this will try to re-use the address unless
+		*   the address is actively listening.
+		*
+		*/
+		void bind( const sockaddr * bind_addr, bool reuse_addr = false ) throw( sockexception );
+
+		/**
+		*   @brief make the socket passive and capable of accepting connections
+		*   @param backlog maximum length of the queue for pending connections
+		*                  and defaults to SOMAXCONN (128) defined in @c <sys/socket.h>
+		*
+		*   @throw psocksxx::sockexception socket exception
+		*
+		*   This method will make the currently opened socket connection
+		*   to passive and capable of accepting client connections using accept()
+		*   method.
+		*
+		*/
+		void listen( int backlog = SOMAXCONN ) throw( sockexception );
+
+		/**
+		*   @brief accept a connection on a listening (passive) socket
+		*   @throw psocksxx::sockexception socket exception
+		*   @return peer socket data structure
+		*
+		*   This method will accept incoming connections on a socket
+		*   set to be passive using the listen() method. Upon success
+		*   this will return the peer socket data structure that can be used
+		*   to create a socket stream buffer instance to communicate
+		*   with the accepted socket connection.
+		*
+		*/
+		socket_t accept() throw( sockexception );
+
+		/**
+		*   @brief set the timeout value for the socket
+		*   @param sec seconds
+		*   @param usec microseconds
+		*   @return a reference to the internal timeout structure
+		*
+		*   This method will set the timeout for the socket and make this
+		*   a non-blocking socket. Note that you cannot clear the timeout
+		*   by passing in a 0 timeout, use clear_timeout() method instead.
+		*
+		*/
+		const timeval * timeout( time_t sec, suseconds_t usec ) throw();
+
+		/**
+		*   @brief clear the timeout value for the socket
+		*   @return a reference to the internal timeout structure which will
+		*           always be a null-pointer (@c 0) after clearing the timeout
+		*
+		*   This will clear any timeout values set for the socket affectively
+		*   making this a blocking socket by default.
+		*
+		*/
+		void * clear_timeout() throw();
+
+		/**
+		*   @brief get the timed-out status
+		*   @return boolean @c true if timed-out flag is set or @c false
+		*           otherwise.
+		*
+		*   Returns the timed-out status.
+		*
+		*/
+		bool timedout() const throw();
+
+
+	protected:
+
+		/**
+		*   @brief initialise internal buffers
+		*/
+		void init_buffers() throw();
+
+		/**
+		*   @brief cleanup internal buffers
+		*/
+		void cleanup_buffers() throw();
+
+		/**
+		*   @brief sync data with the socket
+		*   @return 0 or -1 to denote success or failure
+		*
+		*   Synchronise the buffer with the associated socket
+		*   by flushing data from the buffer to the socket.
+		*
+		*/
+		virtual int sync() throw();
+
+		/**
+		*   @brief consumes the buffer by writing the contents to
+		*          the socket
+		*
+		*   @param c additional character to consume
+		*   @return sockstreambuf::eof to indicate failure or @a c
+		*           if successful.
+		*
+		*   @throw psocksxx::socktimeoutexception on socket timeout
+		*
+		*
+		*   Consumes the buffer contents and writes to the opened socket.
+		*   If @a c is not sockstreambuf::eof then @a c is also written
+		*   out.
+		*
+		*/
+		virtual int overflow( int c = eof ) throw( socktimeoutexception );
+
+		/**
+		*   @brief read more data into the buffer from the socket
+		*   @return the first character from the buffer or sockstreambuf::eof
+		*           if no data is available to read
+		*
+		*   @throw psocksxx::socktimeoutexception on socket timeout
+		*
+		*
+		*   This reads more data into the buffer from the socket when
+		*   the input buffer is empty and returns the next readable
+		*   character from the buffer. If the buffer is empty and no
+		*   data is available through the socket, this returns sockstreambuf::eof.
+		*
+		*/
+		virtual int underflow() throw( socktimeoutexception );
+
+		/**
+		*   @brief check for the read/write availability on the socket
+		*   @param timeout timeout value reference to a @c timeval structure
+		*   @param chk_read check for read availability
+		*   @param chk_write check for write availability
+		*   @throw psocksxx::sockexception socket exception
+		*   @return boolean @c true to denote availability or @c false
+		*           if none of the checked actions are available.
+		*
+		*   This will check the socket for read and/or write availability.
+		*
+		*/
+		bool ready( timeval * timeout, bool chk_read = true, bool chk_write = true ) throw( sockexception );
+
+
+	private:
+
+		/** POSIX socket data */
+		socket_t _socket;
+
+		size_t _bufsize;
+		size_t _putbacksize;
+
+		timeval * _timeout;
+		bool      _timed_out;
+
+
+		void init_defaults() throw();
+
+	};
+
+} /* end of namespace psocksxx */
+
+#endif /* !PSOCKSXX_SOCKSTREAMBUF_H */
+
diff --git a/lib/psocksxx/socktimeoutexception.cpp b/lib/psocksxx/socktimeoutexception.cpp
new file mode 100644
index 0000000..d391630
--- /dev/null
+++ b/lib/psocksxx/socktimeoutexception.cpp
@@ -0,0 +1,50 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#include "socktimeoutexception.h"
+
+#include <sstream>
+
+
+namespace psocksxx {
+
+	socktimeoutexception::socktimeoutexception( const char * message ) throw() {
+		_message = message;
+	}
+
+	socktimeoutexception::socktimeoutexception( const timeval * t_val, const char * method ) throw() {
+
+		// string stream
+		std::stringstream ss;
+
+		if ( method != 0 ) {
+			ss << method << " ";
+		}
+
+		ss << "timed out (" << t_val->tv_sec << "." << t_val->tv_usec << "s)";
+
+		// update exception message
+		_message = ss.str();
+
+	}
+
+	socktimeoutexception::~socktimeoutexception() throw() { }
+
+} /* end of namespace psocksxx */
+
diff --git a/lib/psocksxx/socktimeoutexception.h b/lib/psocksxx/socktimeoutexception.h
new file mode 100644
index 0000000..427dc3e
--- /dev/null
+++ b/lib/psocksxx/socktimeoutexception.h
@@ -0,0 +1,67 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#ifndef PSOCKSXX_SOCKTIMEOUTEXCEPTION_H
+#define PSOCKSXX_SOCKTIMEOUTEXCEPTION_H
+
+#include <psocksxx/sockexception.h>
+
+#include <sys/time.h>
+
+
+namespace psocksxx {
+
+	/**
+	*   @brief Socket timeout exception
+	*
+	*   This acts as the socket timeout exception class.
+	*
+	*/
+	class socktimeoutexception : public sockexception {
+	public:
+
+		/**
+		*   @brief constructor
+		*   @param message exception message
+		*
+		*   Create an timeout exception instance with the passed in exception
+		*   message.
+		*
+		*/
+		socktimeoutexception( const char * message ) throw();
+
+		/**
+		*   @brief constructor
+		*   @param t_val timed-out value
+		*   @param method action/method that timed-out
+		*
+		*   This will take the passed in timed-out value and the action
+		*   to construct the exception message.
+		*
+		*/
+		socktimeoutexception( const timeval * t_val, const char * method = 0 ) throw();
+
+		virtual ~socktimeoutexception() throw();   //!< destructor
+
+	};
+
+} /* end of namespace psocksxx */
+
+#endif /* !PSOCKSXX_SOCKTIMEOUTEXCEPTION_H */
+
diff --git a/lib/psocksxx/tcpnsockstream.cpp b/lib/psocksxx/tcpnsockstream.cpp
new file mode 100644
index 0000000..461a649
--- /dev/null
+++ b/lib/psocksxx/tcpnsockstream.cpp
@@ -0,0 +1,36 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#include "tcpnsockstream.h"
+
+
+namespace psocksxx {
+
+	tcpnsockstream::tcpnsockstream() throw( sockexception ) :
+			nsockstream( sockstreambuf::sock_stream, sockstreambuf::ipproto_tcp ) {
+
+	}
+
+
+	tcpnsockstream::~tcpnsockstream() throw() {
+
+	}
+
+} /* end of namespace psocksxx */
+
diff --git a/lib/psocksxx/tcpnsockstream.h b/lib/psocksxx/tcpnsockstream.h
new file mode 100644
index 0000000..434b93e
--- /dev/null
+++ b/lib/psocksxx/tcpnsockstream.h
@@ -0,0 +1,56 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#ifndef PSOCKSXX_TCPNSOCKSTREAM_H
+#define PSOCKSXX_TCPNSOCKSTREAM_H
+
+#include <psocksxx/nsockstream.h>
+
+
+namespace psocksxx {
+
+	/**
+	*   @brief TCP/IP controller class
+	*
+	*   This acts as the controller for TCP/TP communication streams.
+	*
+	*/
+	class tcpnsockstream : public nsockstream {
+	public:
+
+		/**
+		*   @brief constructor
+		*   @throw psocksxx::sockexception socket exception
+		*
+		*   Initialise a TCP/IP communication stream.
+		*
+		*/
+		tcpnsockstream() throw( sockexception );
+
+		/**
+		*   @brief destructor
+		*/
+		virtual ~tcpnsockstream() throw();
+
+	};
+
+} /* end of namespace psocksxx */
+
+#endif /* !PSOCKSXX_TCPNSOCKSTREAM_H */
+
diff --git a/lib/psocksxx/udpnsockstream.cpp b/lib/psocksxx/udpnsockstream.cpp
new file mode 100644
index 0000000..f12ad60
--- /dev/null
+++ b/lib/psocksxx/udpnsockstream.cpp
@@ -0,0 +1,36 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#include "udpnsockstream.h"
+
+
+namespace psocksxx {
+
+	udpnsockstream::udpnsockstream() throw( sockexception ) :
+			nsockstream( sockstreambuf::sock_dgram, sockstreambuf::ipproto_udp ) {
+
+	}
+
+
+	udpnsockstream::~udpnsockstream() throw() {
+
+	}
+
+} /* end of namespace psocksxx */
+
diff --git a/lib/psocksxx/udpnsockstream.h b/lib/psocksxx/udpnsockstream.h
new file mode 100644
index 0000000..8c33a24
--- /dev/null
+++ b/lib/psocksxx/udpnsockstream.h
@@ -0,0 +1,57 @@
+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library is free software; you can redistribute it and/or modify
+*  it under the terms of the GNU Lesser General Public License as published by
+*  the Free Software Foundation; either version 3 of the License, or
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#ifndef PSOCKSXX_UDPNSOCKSTREAM_H
+#define PSOCKSXX_UDPNSOCKSTREAM_H
+
+#include <psocksxx/nsockstream.h>
+
+
+namespace psocksxx {
+
+	/**
+	*   @brief UDP over IPv4 controller class
+	*
+	*   This acts as the controller class for UDP over IPv4 communication
+	*   streams.
+	*
+	*/
+	class udpnsockstream : public nsockstream {
+	public:
+
+		/**
+		*   @brief constructor
+		*   @throw psocksxx::sockexception socket exception
+		*
+		*   Initialise a UDP communication stream over IPv4.
+		*
+		*/
+		udpnsockstream() throw( sockexception );
+
+		/**
+		*   @brief destructor
+		*/
+		virtual ~udpnsockstream() throw();
+
+	};
+
+} /* end of namespace psocksxx */
+
+#endif /* !PSOCKSXX_UDPNSOCKSTREAM_H */
+