diff --git a/qse/configure b/qse/configure
index 0651acd2..0f2c2003 100755
--- a/qse/configure
+++ b/qse/configure
@@ -22659,7 +22659,7 @@ QSE_PROJECT_AUTHOR="${PACKAGE_BUGREPORT}"
 QSE_PROJECT_URL="${PACKAGE_URL}"
 
 
-ac_config_files="$ac_config_files Makefile README include/Makefile include/qse/Makefile include/qse/cmn/Makefile include/qse/awk/Makefile include/qse/sed/Makefile include/qse/xli/Makefile include/qse/http/Makefile lib/Makefile lib/cmn/Makefile lib/awk/Makefile lib/sed/Makefile lib/xli/Makefile lib/http/Makefile lib/qsecmn.pc lib/qseawk.pc lib/qsesed.pc lib/qsexli.pc lib/qsehttp.pc cmd/Makefile cmd/awk/Makefile cmd/sed/Makefile cmd/xli/Makefile cmd/http/Makefile samples/Makefile samples/cmn/Makefile samples/awk/Makefile samples/sed/Makefile samples/http/Makefile regress/Makefile regress/awk/Makefile regress/awk/regress.sh regress/sed/Makefile regress/sed/regress.sh doc/Makefile doc/Doxyfile tools/Makefile"
+ac_config_files="$ac_config_files Makefile README include/Makefile include/qse/Makefile include/qse/cmn/Makefile include/qse/sys/Makefile include/qse/awk/Makefile include/qse/sed/Makefile include/qse/xli/Makefile include/qse/http/Makefile lib/Makefile lib/cmn/Makefile lib/sys/Makefile lib/awk/Makefile lib/sed/Makefile lib/xli/Makefile lib/http/Makefile lib/qsecmn.pc lib/qseawk.pc lib/qsesed.pc lib/qsexli.pc lib/qsehttp.pc cmd/Makefile cmd/awk/Makefile cmd/sed/Makefile cmd/xli/Makefile cmd/http/Makefile samples/Makefile samples/cmn/Makefile samples/awk/Makefile samples/sed/Makefile samples/http/Makefile regress/Makefile regress/awk/Makefile regress/awk/regress.sh regress/sed/Makefile regress/sed/regress.sh doc/Makefile doc/Doxyfile tools/Makefile"
 
 cat >confcache <<\_ACEOF
 # This file is a shell script that caches the results of configure
@@ -23836,12 +23836,14 @@ do
     "include/Makefile") CONFIG_FILES="$CONFIG_FILES include/Makefile" ;;
     "include/qse/Makefile") CONFIG_FILES="$CONFIG_FILES include/qse/Makefile" ;;
     "include/qse/cmn/Makefile") CONFIG_FILES="$CONFIG_FILES include/qse/cmn/Makefile" ;;
+    "include/qse/sys/Makefile") CONFIG_FILES="$CONFIG_FILES include/qse/sys/Makefile" ;;
     "include/qse/awk/Makefile") CONFIG_FILES="$CONFIG_FILES include/qse/awk/Makefile" ;;
     "include/qse/sed/Makefile") CONFIG_FILES="$CONFIG_FILES include/qse/sed/Makefile" ;;
     "include/qse/xli/Makefile") CONFIG_FILES="$CONFIG_FILES include/qse/xli/Makefile" ;;
     "include/qse/http/Makefile") CONFIG_FILES="$CONFIG_FILES include/qse/http/Makefile" ;;
     "lib/Makefile") CONFIG_FILES="$CONFIG_FILES lib/Makefile" ;;
     "lib/cmn/Makefile") CONFIG_FILES="$CONFIG_FILES lib/cmn/Makefile" ;;
+    "lib/sys/Makefile") CONFIG_FILES="$CONFIG_FILES lib/sys/Makefile" ;;
     "lib/awk/Makefile") CONFIG_FILES="$CONFIG_FILES lib/awk/Makefile" ;;
     "lib/sed/Makefile") CONFIG_FILES="$CONFIG_FILES lib/sed/Makefile" ;;
     "lib/xli/Makefile") CONFIG_FILES="$CONFIG_FILES lib/xli/Makefile" ;;
diff --git a/qse/configure.ac b/qse/configure.ac
index 6ca0acee..b3c97894 100644
--- a/qse/configure.ac
+++ b/qse/configure.ac
@@ -737,12 +737,14 @@ AC_CONFIG_FILES([
 	include/Makefile
 	include/qse/Makefile
 	include/qse/cmn/Makefile
+	include/qse/sys/Makefile
 	include/qse/awk/Makefile
 	include/qse/sed/Makefile
 	include/qse/xli/Makefile
 	include/qse/http/Makefile
 	lib/Makefile 
 	lib/cmn/Makefile 
+	lib/sys/Makefile 
 	lib/awk/Makefile 
 	lib/sed/Makefile 
 	lib/xli/Makefile 
diff --git a/qse/include/qse/Makefile.am b/qse/include/qse/Makefile.am
index 7b455aae..ee2b4be7 100644
--- a/qse/include/qse/Makefile.am
+++ b/qse/include/qse/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = cmn awk sed xli http
+SUBDIRS = cmn sys awk sed xli http
 
 pkgincludedir = $(includedir)/qse
 
diff --git a/qse/include/qse/Makefile.in b/qse/include/qse/Makefile.in
index 5ea70dc1..c873bac6 100644
--- a/qse/include/qse/Makefile.in
+++ b/qse/include/qse/Makefile.in
@@ -390,7 +390,7 @@ target_alias = @target_alias@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
-SUBDIRS = cmn awk sed xli http
+SUBDIRS = cmn sys awk sed xli http
 pkginclude_HEADERS = conf-msw.h conf-os2.h conf-dos.h conf-vms.h \
 	conf-mac.h conf-inf.h types.h macros.h pack1.h unpack.h \
 	$(am__append_1)
diff --git a/qse/include/qse/cmn/ipad.h b/qse/include/qse/cmn/ipad.h
index aaf3361d..8c867b4f 100644
--- a/qse/include/qse/cmn/ipad.h
+++ b/qse/include/qse/cmn/ipad.h
@@ -30,7 +30,6 @@
 #include <qse/types.h>
 #include <qse/macros.h>
 
-typedef struct qse_ipad_t  qse_ipad_t;
 typedef struct qse_ip4ad_t qse_ip4ad_t;
 typedef struct qse_ip6ad_t qse_ip6ad_t;
 
diff --git a/qse/include/qse/cmn/nwad.h b/qse/include/qse/cmn/nwad.h
index cfe1a6d1..39298d57 100644
--- a/qse/include/qse/cmn/nwad.h
+++ b/qse/include/qse/cmn/nwad.h
@@ -247,6 +247,15 @@ QSE_EXPORT int qse_skadfamily (
 	const qse_skad_t* skad
 );
 
+
+/**
+ * The qse_skadlength() function returns the socket address size
+ * of a given address \a skad.
+ */
+QSE_EXPORT int qse_skadsize (
+	const qse_skad_t* skad
+);
+
 #if defined(__cplusplus)
 }
 #endif
diff --git a/qse/include/qse/sys/Makefile.am b/qse/include/qse/sys/Makefile.am
new file mode 100644
index 00000000..3e442dba
--- /dev/null
+++ b/qse/include/qse/sys/Makefile.am
@@ -0,0 +1,9 @@
+pkgincludedir = $(includedir)/qse/sys
+
+pkginclude_HEADERS = 
+
+if ENABLE_CXX
+pkginclude_HEADERS += \
+	SocketAddress.hpp
+endif
+
diff --git a/qse/include/qse/sys/Makefile.in b/qse/include/qse/sys/Makefile.in
new file mode 100644
index 00000000..93bf80b7
--- /dev/null
+++ b/qse/include/qse/sys/Makefile.in
@@ -0,0 +1,612 @@
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+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+install-pkgincludeHEADERS: $(pkginclude_HEADERS)
+	@$(NORMAL_INSTALL)
+	@list='$(pkginclude_HEADERS)'; test -n "$(pkgincludedir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkgincludedir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkgincludedir)" || exit 1; \
+	fi; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  echo "$$d$$p"; \
+	done | $(am__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_HEADER) $$files '$(DESTDIR)$(pkgincludedir)'"; \
+	  $(INSTALL_HEADER) $$files "$(DESTDIR)$(pkgincludedir)" || exit $$?; \
+	done
+
+uninstall-pkgincludeHEADERS:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkginclude_HEADERS)'; test -n "$(pkgincludedir)" || list=; \
+	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
+	dir='$(DESTDIR)$(pkgincludedir)'; $(am__uninstall_files_from_dir)
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
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+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
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+
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+	list='$(am__tagged_files)'; \
+	case "$(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)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(HEADERS)
+installdirs:
+	for dir in "$(DESTDIR)$(pkgincludedir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
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+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
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+install-strip:
+	if test -z '$(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-libtool mostlyclean-am
+
+distclean: distclean-am
+	-rm -f Makefile
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+
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+
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+
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+
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+	-rm -f Makefile
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+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool cscopelist-am ctags ctags-am distclean \
+	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-man install-pdf \
+	install-pdf-am install-pkgincludeHEADERS install-ps \
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+	mostlyclean mostlyclean-generic mostlyclean-libtool pdf pdf-am \
+	ps ps-am tags tags-am uninstall uninstall-am \
+	uninstall-pkgincludeHEADERS
+
+
+# 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/qse/include/qse/sys/SocketAddress.hpp b/qse/include/qse/sys/SocketAddress.hpp
new file mode 100644
index 00000000..cb637d68
--- /dev/null
+++ b/qse/include/qse/sys/SocketAddress.hpp
@@ -0,0 +1,64 @@
+/*
+ * $Id$
+ *
+    Copyright (c) 2006-2014 Chung, Hyung-Hwan. All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
+    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _QSE_SYS_SOCKETADDRESS_HPP_
+#define _QSE_SYS_SOCKETADDRESS_HPP_
+
+#include <qse/cmn/nwad.h>
+
+/////////////////////////////////
+QSE_BEGIN_NAMESPACE(QSE)
+/////////////////////////////////
+
+class SocketAddress
+{
+public:
+	int   getFamily () const;
+	void* getStorage (int* len);
+
+	int   getStorageSize () const
+	{
+		return qse_skadsize(&this->skad);
+	}
+
+	void setIpaddr (const qse_ip4ad_t* ipaddr);
+	void setIpaddr (const qse_ip6ad_t* ipaddr);
+	qse_uint16_t getPort() const; // in network-byte order
+	void setPort (qse_uint16_t port); // in network-byte order
+
+	int set (const qse_skad_t* skad);
+	int set (const void* ptr, int len);
+	int set (const qse_nwad_t* nwad);
+
+protected:
+	qse_skad_t skad;
+};
+
+/////////////////////////////////
+QSE_END_NAMESPACE(QSE)
+/////////////////////////////////
+
+#endif
diff --git a/qse/lib/Makefile.am b/qse/lib/Makefile.am
index 313269ce..e71b0a96 100644
--- a/qse/lib/Makefile.am
+++ b/qse/lib/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = cmn sed awk xli http 
+SUBDIRS = cmn sys sed awk xli http 
 DIST_SUBDIRS = $(SUBDIRS) 
 
 pkgconfigdir = $(libdir)/pkgconfig
diff --git a/qse/lib/Makefile.in b/qse/lib/Makefile.in
index c164fb0f..fb03dcfa 100644
--- a/qse/lib/Makefile.in
+++ b/qse/lib/Makefile.in
@@ -383,7 +383,7 @@ target_alias = @target_alias@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
-SUBDIRS = cmn sed awk xli http 
+SUBDIRS = cmn sys sed awk xli http 
 DIST_SUBDIRS = $(SUBDIRS) 
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = qsecmn.pc qseawk.pc qsesed.pc qsexli.pc qsehttp.pc
diff --git a/qse/lib/cmn/nwad-skad.c b/qse/lib/cmn/nwad-skad.c
index 9f7129eb..8c97ba6a 100644
--- a/qse/lib/cmn/nwad-skad.c
+++ b/qse/lib/cmn/nwad-skad.c
@@ -260,3 +260,35 @@ int qse_skadfamily (const qse_skad_t* skad)
 	QSE_ASSERT (QSE_SIZEOF(*skad) >= QSE_SIZEOF(sockaddr_t));
 	return FAMILY(skad);
 }
+
+int qse_skadsize (const qse_skad_t* skad)
+{
+	switch (FAMILY(skad))
+	{
+#if defined(AF_INET)
+		case AF_INET:
+		{
+			struct sockaddr_in in;
+			return QSE_SIZEOF(in);
+		}
+#endif
+
+#if defined(AF_INET6)
+		case AF_INET6:
+		{
+			struct sockaddr_in in6;
+			return QSE_SIZEOF(in6);
+		}
+#endif
+
+#if defined(AF_UNIX)
+		case AF_UNIX:
+		{
+			struct sockaddr_un un;
+			return QSE_SIZEOF(un);
+		}
+#endif
+	}
+
+	return 0;
+}
diff --git a/qse/lib/sys/Makefile.am b/qse/lib/sys/Makefile.am
new file mode 100644
index 00000000..842df0b6
--- /dev/null
+++ b/qse/lib/sys/Makefile.am
@@ -0,0 +1,20 @@
+AUTOMAKE_OPTIONS = nostdinc
+
+AM_CPPFLAGS = \
+	-I$(top_builddir)/include \
+	-I$(top_srcdir)/include
+
+lib_LTLIBRARIES = 
+#lib_LTLIBRARIES = libqsesys.la
+#libqsesys_la_SOURCES = 
+#libqsesys_la_LDFLAGS = -L../cmn -version-info 1:0:0 -no-undefined
+#libqsesys_la_LIBADD = -lqsecmn 
+
+if ENABLE_CXX
+lib_LTLIBRARIES += libqsesysxx.la
+libqsesysxx_la_SOURCES = \
+	SocketAddress.cpp
+libqsesysxx_la_LDFLAGS = -L. -L../cmn -version-info 1:0:0 -no-undefined
+libqsesysxx_la_LIBADD = -lqsecmnxx -lqsecmn 
+endif
+
diff --git a/qse/lib/sys/Makefile.in b/qse/lib/sys/Makefile.in
new file mode 100644
index 00000000..fe18e4f7
--- /dev/null
+++ b/qse/lib/sys/Makefile.in
@@ -0,0 +1,710 @@
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+# with or without modifications, as long as this notice is preserved.
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+	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-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 tags-am uninstall uninstall-am uninstall-libLTLIBRARIES
+
+
+# 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/qse/lib/sys/SocketAddress.cpp b/qse/lib/sys/SocketAddress.cpp
new file mode 100644
index 00000000..86a2b00e
--- /dev/null
+++ b/qse/lib/sys/SocketAddress.cpp
@@ -0,0 +1,198 @@
+/*
+ * $Id$
+ *
+    Copyright (c) 2006-2014 Chung, Hyung-Hwan. All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
+    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+#include <qse/sys/SocketAddress.hpp>
+#include "../cmn/mem.h"
+
+#if defined(_WIN32)
+#	include <winsock2.h>
+#	include <ws2tcpip.h> /* sockaddr_in6 */
+#	include <windows.h>
+#	undef AF_UNIX
+#	if defined(__WATCOMC__) && (__WATCOMC__ < 1200)
+		/* the header files shipped with watcom 11 doesn't contain
+		 * proper inet6 support. note using the compiler version
+		 * in the contidional isn't that good idea since you 
+		 * can use newer header files with this old compiler.
+		 * never mind it for the time being.
+		 */
+#		undef AF_INET6
+#	endif
+#elif defined(__OS2__)
+#	include <types.h>
+#	include <sys/socket.h>
+#	include <netinet/in.h>
+	/* though AF_INET6 is defined, there is no support
+	 * for it. so undefine it */
+#	undef AF_INET6
+#	undef AF_UNIX
+#	pragma library("tcpip32.lib")
+#elif defined(__DOS__)
+#	include <tcp.h> /* watt-32 */
+#	undef AF_UNIX
+#else
+#	if defined(HAVE_SYS_TYPES_H)
+#		include <sys/types.h>
+#	endif
+#	include <sys/socket.h>
+#	include <netinet/in.h>
+#	if defined(HAVE_SYS_UN_H)
+#		include <sys/un.h>
+#	endif
+
+#	if defined(QSE_SIZEOF_STRUCT_SOCKADDR_IN6) && (QSE_SIZEOF_STRUCT_SOCKADDR_IN6 <= 0)
+#		undef AF_INET6
+#	endif
+
+#	if defined(QSE_SIZEOF_STRUCT_SOCKADDR_UN) && (QSE_SIZEOF_STRUCT_SOCKADDR_UN <= 0)
+#		undef AF_UNIX
+#	endif
+
+#endif
+
+
+#if defined(AF_INET)
+#	define FAMILY(x) (((struct sockaddr_in*)(x))->sin_family)
+#elif defined(AF_INET6)
+#	define FAMILY(x) (((struct sockaddr_in6*)(x))->sin6_family)
+#elif defined(AF_UNIX)
+#	define FAMILY(x) (((struct sockaddr_un*)(x))->sun_family)
+#else
+#	define FAMILY(x) (-1)
+#endif
+
+/////////////////////////////////
+QSE_BEGIN_NAMESPACE(QSE)
+/////////////////////////////////
+
+int SocketAddress::getFamily () const
+{
+	return FAMILY(&this->skad);
+	//return qse_skadfamily (&this->skad);
+}
+
+void* SocketAddress::getStorage (int* len)
+{
+	if (len) *len = qse_skadsize(&this->skad);
+	return (void*)&this->skad;
+}
+
+
+void SocketAddress::setIpaddr (const qse_ip4ad_t* ipaddr)
+{
+#if defined(AF_INET)
+	if (FAMILY(&this->skad) == AF_INET)
+	{
+		struct sockaddr_in* v4 = (struct sockaddr_in*)&this->skad;
+		QSE_MEMCPY (&v4->sin_addr, ipaddr, QSE_SIZEOF(*ipaddr));
+
+	}
+#endif
+}
+
+void SocketAddress::setIpaddr (const qse_ip6ad_t* ipaddr)
+{
+#if defined(AF_INET6)
+	if (FAMILY(&this->skad) == AF_INET6)
+	{
+		struct sockaddr_in6* v6 = (struct sockaddr_in6*)&this->skad;
+		QSE_MEMCPY (&v6->sin6_addr, ipaddr, QSE_SIZEOF(*ipaddr));
+	}
+#endif
+}
+
+qse_uint16_t SocketAddress::getPort () const
+{
+	switch (FAMILY(&this->skad))
+	{
+#if defined(AF_INET)
+		case AF_INET:
+		{
+			struct sockaddr_in* v4 = (struct sockaddr_in*)&this->skad;
+			return v4->sin_port;
+		}
+#endif
+
+#if defined(AF_INET6)
+		case AF_INET6:
+		{
+			struct sockaddr_in6* v6 = (struct sockaddr_in6*)&this->skad;
+			return v6->sin6_port;
+		}
+#endif
+	}
+
+	return 0;
+}
+
+void SocketAddress::setPort (qse_uint16_t port)
+{
+	switch (FAMILY(&this->skad))
+	{
+#if defined(AF_INET)
+		case AF_INET:
+		{
+			struct sockaddr_in* v4 = (struct sockaddr_in*)&this->skad;
+			v4->sin_port = port;
+			break;
+		}
+#endif
+
+#if defined(AF_INET6)
+		case AF_INET6:
+		{
+			struct sockaddr_in6* v6 = (struct sockaddr_in6*)&this->skad;
+			v6->sin6_port = port;
+			break;
+		}
+#endif
+	}
+}
+
+int SocketAddress::set (const qse_skad_t* skad)
+{
+	this->skad = *skad;
+	return 0;
+}
+
+int SocketAddress::set (const void* ptr, int len)
+{
+	if (len < QSE_SIZEOF(struct sockaddr)) return -1;
+	int exp_size = qse_skadsize((const qse_skad_t*)ptr);
+	if (len < exp_size) return -1;
+	QSE_MEMCPY (&this->skad, ptr, exp_size);
+	return 0;
+}
+
+int SocketAddress::set (const qse_nwad_t* nwad)
+{
+	return qse_nwadtoskad (nwad, &this->skad);
+}
+
+/////////////////////////////////
+QSE_END_NAMESPACE(QSE)
+/////////////////////////////////
diff --git a/qse/lib/xli/Makefile.in b/qse/lib/xli/Makefile.in
index 565ee4e6..9e309744 100644
--- a/qse/lib/xli/Makefile.in
+++ b/qse/lib/xli/Makefile.in
@@ -126,8 +126,8 @@ am__uninstall_files_from_dir = { \
 am__installdirs = "$(DESTDIR)$(libdir)"
 LTLIBRARIES = $(lib_LTLIBRARIES)
 libqsexli_la_DEPENDENCIES =
-am_libqsexli_la_OBJECTS = xli.lo err.lo read.lo read-ini.lo write.lo write-ini.lo \
-	std.lo
+am_libqsexli_la_OBJECTS = xli.lo err.lo read.lo read-ini.lo write.lo \
+	write-ini.lo std.lo
 libqsexli_la_OBJECTS = $(am_libqsexli_la_OBJECTS)
 AM_V_lt = $(am__v_lt_@AM_V@)
 am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
@@ -464,8 +464,8 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/read-ini.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/read.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/std.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/write.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/write-ini.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/write.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/xli.Plo@am__quote@
 
 .c.o:
diff --git a/qse/lib/xli/read.c b/qse/lib/xli/read.c
index 876ab452..82cae865 100644
--- a/qse/lib/xli/read.c
+++ b/qse/lib/xli/read.c
@@ -665,7 +665,7 @@ retry:
 	else
 	{
 		n = get_symbols (xli, c, tok);
-		if (n <= -1) return -1; // hard failure
+		if (n <= -1) return -1; /* hard failure */
 		if (n == 0)
 		{
 			/* not handled yet */