TclTLS
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Comment:Initial import of tls extension.
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | tls-vendor-branch | tls-1-3
Files: files | file ages | folders
SHA1: 27770ce26dd292a1371fa93c227ae79be358be5b
User & Date: aborr on 2000-01-19 22:10:58
Other Links: branch diff | manifest | tags
Context
2000-01-19
22:10
Initial import of tls extension. Closed-Leaf check-in: 27770ce26d user: aborr tags: tls-vendor-branch, tls-1-3
22:10
initial empty check-in check-in: 62ad5dda81 user: cvs2fossil tags: trunk
Changes
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Added Makefile.in version [ec83a08df3]. 









































































































































































































































































































































































































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# Makefile.in --
#
# This file is a Makefile for the tsl Tcl extension.  If it has the name
# "Makefile.in" then it is a template for a Makefile;  to generate the
# actual Makefile, run "./configure", which is a configuration script
# generated by the "autoconf" program (constructs like "@foo@" will get
# replaced in the actual Makefile.
#
# Copyright (c) 1999-2000 Scriptics Corporation.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# RCS: @(#) $Id: Makefile.in,v 1.1.1.1 2000/01/19 22:10:58 aborr Exp $


lib_BINARIES=$(tls_LIB_FILE)
BINARIES=$(lib_BINARIES)

#========================================================================
# Enumerate the names of the source files included in this package.
# This will be used when a dist target is added to the Makefile.
#========================================================================

tls_SOURCES =	tls.c tlsIO.c tlsBIO.c \
		tlsX509.c fixstrtod.c strncasecmp.c
SOURCES	=	$(tls_SOURCES)

#========================================================================
# Enumerate the names of the object files included in this package.
# These objects are created and linked into the final library.
#========================================================================

tls_OBJECTS =	tls.$(OBJEXT) tlsIO.$(OBJEXT) tlsBIO.$(OBJEXT) \
		tlsX509.$(OBJEXT) fixstrtod.$(OBJEXT) strncasecmp.$(OBJEXT)
OBJECTS =	$(tls_OBJECTS)

#========================================================================
# The substitution of "tls_LIB_FILE" into the variable name below
# allows us to refer to the objects for the library without knowing the name
# of the library in advance.  It also lets us use the "$@" variable in
# the rule for building the library, so we can refer to both the list of 
# objects and the library itself in a platform-independent manner.
#========================================================================

tls_LIB_FILE = @tls_LIB_FILE@
$(tls_LIB_FILE)_OBJECTS = $(tls_OBJECTS)

#========================================================================
# This is a list of header files to be installed
#========================================================================

GENERIC_HDRS= \
	$(srcdir)/tls.h

#========================================================================
# Variables and AC_SUBST cases added for tls.
#========================================================================

SSL_DIR =		@SSL_DIR@
SSL_LIB_DIR =		@SSL_LIB_DIR@
SSL_INCLUDE_DIR =	@SSL_INCLUDE_DIR@
SSL_INCLUDE_DIR_NATIVE = @SSL_INCLUDE_DIR_NATIVE@
SSL_INCLUDES =		-I$(SSL_INCLUDE_DIR_NATIVE)
SSL_CFLAGS =		-DNO_PATENTS -DPRE_OPENSSL_0_9_4


#========================================================================
# This is boilerplate from the sample tcl extension Makefile.in:
# Nothing of the variables below this line need to be changed.  Please
# check the TARGETS section below to make sure the make targets are
# correct.
#========================================================================

SHELL = @SHELL@

srcdir = @srcdir@
top_srcdir = @top_srcdir@
prefix = @prefix@
exec_prefix = @exec_prefix@

bindir = @bindir@
sbindir = @sbindir@
libexecdir = @libexecdir@
datadir = @datadir@
sysconfdir = @sysconfdir@
sharedstatedir = @sharedstatedir@
localstatedir = @localstatedir@
libdir = @libdir@
infodir = @infodir@
mandir = @mandir@
includedir = @includedir@
oldincludedir = /usr/include

DESTDIR =

pkgdatadir = $(datadir)/@PACKAGE@@VERSION@
pkglibdir = $(libdir)/@PACKAGE@@VERSION@
pkgincludedir = $(includedir)/@PACKAGE@@VERSION@

top_builddir = .

INSTALL = @INSTALL@
INSTALL_PROGRAM = @INSTALL_PROGRAM@
INSTALL_DATA = @INSTALL_DATA@
INSTALL_SCRIPT = @INSTALL_SCRIPT@
INSTALL_STRIP_FLAG =
transform = @program_transform_name@

NORMAL_INSTALL = :
PRE_INSTALL = :
POST_INSTALL = :
NORMAL_UNINSTALL = :
PRE_UNINSTALL = :
POST_UNINSTALL = :

PACKAGE = @PACKAGE@
VERSION = @VERSION@
CC = @CC@
CFLAGS_DEBUG = @CFLAGS_DEBUG@
CFLAGS_DEFAULT = @CFLAGS_DEFAULT@
CFLAGS_OPTIMIZE = @CFLAGS_OPTIMIZE@
CLEANFILES = @CLEANFILES@
EXEEXT = @EXEEXT@
LDFLAGS_DEBUG = @LDFLAGS_DEBUG@
LDFLAGS_DEFAULT = @LDFLAGS_DEFAULT@
LDFLAGS_OPTIMIZE = @LDFLAGS_OPTIMIZE@
MAKE_LIB = @MAKE_LIB@
MAKE_SHARED_LIB = @MAKE_SHARED_LIB@
MAKE_STATIC_LIB = @MAKE_STATIC_LIB@
OBJEXT = @OBJEXT@
RANLIB = @RANLIB@
SHLIB_CFLAGS = @SHLIB_CFLAGS@
SHLIB_LD = @SHLIB_LD@
SHLIB_LDFLAGS = @SHLIB_LDFLAGS@
SHLIB_LD_LIBS = @SHLIB_LD_LIBS@
STLIB_LD = @STLIB_LD@
TCL_BIN_DIR = @TCL_BIN_DIR@
TCL_DEFS = @TCL_DEFS@
TCL_EXTRA_CFLAGS = @TCL_EXTRA_CFLAGS@
TCL_LD_FLAGS = @TCL_LD_FLAGS@
TCL_LIBS = @TCL_LIBS@
TCL_SHLIB_LD_LIBS = @TCL_SHLIB_LD_LIBS@
TCL_SRC_DIR = @TCL_SRC_DIR@
TCL_DBGX = @TCL_DBGX@
TCL_STUB_LIB_FILE = @TCL_STUB_LIB_FILE@
TCL_STUB_LIB_SPEC = @TCL_STUB_LIB_SPEC@
TCL_TOOL_DIR_NATIVE = @TCL_TOOL_DIR_NATIVE@
TCL_TOP_DIR_NATIVE = @TCL_TOP_DIR_NATIVE@
TCL_UNIX_DIR_NATIVE = @TCL_UNIX_DIR_NATIVE@
TCL_WIN_DIR_NATIVE = @TCL_WIN_DIR_NATIVE@
INCLUDE_DIR_NATIVE = @INCLUDE_DIR_NATIVE@
TCL_BMAP_DIR_NATIVE = @TCL_BMAP_DIR_NATIVE@
TCL_PLATFORM_DIR_NATIVE = @TCL_PLATFORM_DIR_NATIVE@
TCL_GENERIC_DIR_NATIVE = @TCL_GENERIC_DIR_NATIVE@
TCLSH_PROG = @TCLSH_PROG@

AUTOCONF = autoconf

LDFLAGS = $(LDFLAGS_DEFAULT)

INCLUDES = @TCL_INCLUDES@ $(SSL_INCLUDES)

EXTRA_CFLAGS = $(TCL_DEFS) $(PROTO_FLAGS) $(SECURITY_FLAGS) $(MEM_DEBUG_FLAGS) $(KEYSYM_FLAGS) $(NO_DEPRECATED_FLAGS) $(SSL_CFLAGS)

DEFS = @DEFS@ $(EXTRA_CFLAGS)

ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
CONFIG_CLEAN_FILES =

CPPFLAGS = @CPPFLAGS@
LIBS = @LIBS@
AR = ar
CFLAGS = @CFLAGS@
COMPILE = $(CC) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
CCLD = $(CC)
LINK = $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@

#========================================================================
# Start of user-definable TARGETS section
#========================================================================

#========================================================================
# TEA TARGETS.  Please note that the "libraries:" target refers to platform
# independent files, and the "binaries:" target inclues executable programs and
# platform-dependent libraries.  Modify these targets so that they install
# the various pieces of your package.  The make and install rules
# for the BINARIES that you specified above have already been done.
#========================================================================

all: binaries libraries doc

#========================================================================
# The binaries target builds executable programs, Windows .dll's, unix
# shared/static libraries, and any other platform-dependent files.
# The list of targets to build for "binaries:" is specified at the top
# of the Makefile, in the "BINARIES" variable.
#========================================================================

binaries: $(BINARIES)

libraries:

doc:

install: all install-binaries install-libraries install-doc

install-binaries: binaries install-lib-binaries install-bin-binaries
	$(INSTALL_DATA) pkgIndex.tcl $(pkglibdir)

#========================================================================
# This rule installs platform-independent files, such as header files.
#========================================================================

install-libraries: libraries
	$(mkinstalldirs) $(includedir)
	@echo "Installing header files in $(includedir)"
	@for i in $(GENERIC_HDRS) ; do \
	    echo "Installing $$i" ; \
	    $(INSTALL_DATA) $$i $(includedir) ; \
	done;
	$(INSTALL_DATA) $(srcdir)/tls.tcl $(pkglibdir)

#========================================================================
# Install documentation.  Unix manpages should go in the $(mandir)
# directory.
#========================================================================

install-doc: doc
	# $(mkinstalldirs) $(mandir)/man1
	# $(mkinstalldirs) $(mandir)/man3
	# $(mkinstalldirs) $(mandir)/mann
	# @echo "Installing documentation in $(mandir)"
	# @for i in $(srcdir)/*.n; \
	    # do \
	    # echo "Installing $$i"; \
	    # rm -f $(mandir)/mann/$$i; \
	    # $(INSTALL_DATA) $$i $(mandir)/mann ; \
	    # done

test:

depend:

#========================================================================
# Enumerate the names of the object files included in this package.
# These objects are created and linked into the final library.  In
# most cases these object files will correspond to the source files
# above.
#
# $(exampleA_LIB_FILE) should be listed as part of the BINARIES variable
# at the top of the Makefile.  That will ensure that this target is built
# when you run "make binaries".
#
# You shouldn't need to modify this target, except to change the package
# name from "exampleA" to your package's name.
#========================================================================

$(tls_LIB_FILE): $(tls_OBJECTS)
	-rm -f $(tls_LIB_FILE)
	@MAKE_LIB@
	$(RANLIB) $(tls_LIB_FILE)

#========================================================================
# We need to enumerate the list of .c to .o lines here.
# Unfortunately, there does not seem to be any other way to do this
# in a Makefile-independent way.  We can't use VPATH because it picks up
# object files that may be located in the source directory.
#
# In the following lines, $(srcdir) refers to the toplevel directory
# containing your extension.  If your sources are in a subdirectory,
# you will have to modify the paths to reflect this:
#
# exampleA.$(OBJEXT): $(srcdir)/src/win/exampleA.c
# 	$(COMPILE) -c `@CYGPATH@ $(srcdir)/src/win/exampleA.c` -o $@
#========================================================================

tls.$(OBJEXT): $(srcdir)/tls.c
	$(COMPILE) -c `@CYGPATH@ $(srcdir)/tls.c` -o $@

tlsIO.$(OBJEXT): $(srcdir)/tlsIO.c
	$(COMPILE) -c `@CYGPATH@ $(srcdir)/tlsIO.c` -o $@

tlsBIO.$(OBJEXT): $(srcdir)/tlsBIO.c
	$(COMPILE) -c `@CYGPATH@ $(srcdir)/tlsBIO.c` -o $@

tlsX509.$(OBJEXT): $(srcdir)/tlsX509.c
	$(COMPILE) -c `@CYGPATH@ $(srcdir)/tlsX509.c` -o $@

fixstrtod.$(OBJEXT): $(srcdir)/fixstrtod.c
	$(COMPILE) -c `@CYGPATH@ $(srcdir)/fixstrtod.c` -o $@

strncasecmp.$(OBJEXT): $(srcdir)/strncasecmp.c
	$(COMPILE) -c `@CYGPATH@ $(srcdir)/strncasecmp.c` -o $@

#========================================================================
# End of user-definable section
#========================================================================

#========================================================================
# Don't modify the file to clean here.  Instead, set the "CLEANFILES"
# variable in configure.in
#========================================================================

clean:  
	-test -z "$(BINARIES)" || rm -f $(BINARIES)
	-rm -f *.o core *.core
	-rm -f *.$(OBJEXT)
	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)

distclean: clean
	-rm -f *.tab.c
	-rm -f Makefile $(CONFIG_CLEAN_FILES)
	-rm -f config.cache config.log stamp-h stamp-h[0-9]*
	-rm -f config.status

#========================================================================
# Install binary object libraries.  On Windows this includes both .dll and
# .lib files.  Because the .lib files are not explicitly listed anywhere,
# we need to deduce their existence from the .dll file of the same name.
# Additionally, the .dll files go into the bin directory, but the .lib
# files go into the lib directory.  On Unix platforms, all library files
# go into the lib directory.  In addition, this will generate the pkgIndex.tcl
# file in the install location (assuming it can find a usable tclsh8.2 shell)
#
# You should not have to modify this target.
#========================================================================

install-lib-binaries: installdirs
	@list='$(lib_BINARIES)'; for p in $$list; do \
	  if test -f $$p; then \
	    ext=`echo $$p|sed -e "s/.*\.//"`; \
	    if test "x$$ext" = "xdll"; then \
	        echo " $(INSTALL_DATA) $$p $(DESTDIR)$(bindir)/$$p"; \
	        $(INSTALL_DATA) $$p $(DESTDIR)$(bindir)/$$p; \
		lib=`basename $$p|sed -e 's/.[^.]*$$//'`.lib; \
		if test -f $$lib; then \
		    echo " $(INSTALL_DATA) $$lib $(DESTDIR)$(libdir)/$$lib"; \
	            $(INSTALL_DATA) $$lib $(DESTDIR)$(libdir)/$$lib; \
		fi; \
	    else \
		echo " $(INSTALL_DATA) $$p $(DESTDIR)$(libdir)/$$p"; \
	        $(INSTALL_DATA) $$p $(DESTDIR)$(libdir)/$$p; \
	    fi; \
	  else :; fi; \
	done
	@list='$(lib_BINARIES)'; for p in $$list; do \
	  if test -f $$p; then \
	    echo " $(RANLIB) $(DESTDIR)$(bindir)/$$p"; \
	    $(RANLIB) $(DESTDIR)$(bindir)/$$p; \
	  else :; fi; \
	done

#========================================================================
# Install binary executables (e.g. .exe files)
#
# You should not have to modify this target.
#========================================================================

install-bin-binaries: installdirs
	@list='$(bin_BINARIES)'; for p in $$list; do \
	  if test -f $$p; then \
	    echo " $(INSTALL_DATA) $$p $(DESTDIR)$(bindir)/$$p"; \
	    $(INSTALL_DATA) $$p $(DESTDIR)$(bindir)/$$p; \
	  else :; fi; \
	done

.SUFFIXES: .c .o .obj

Makefile: $(srcdir)/Makefile.in  $(top_builddir)/config.status
	cd $(top_builddir) \
	  && CONFIG_FILES=$@ CONFIG_HEADERS= $(SHELL) ./config.status

uninstall-binaries:
	@$(NORMAL_UNINSTALL)
	list='$(BINARIES)'; for p in $$list; do \
	  rm -f $(DESTDIR)$(libdir)/$$p; \
	done

installdirs:
	$(mkinstalldirs)  $(DESTDIR)$(libdir)
	$(mkinstalldirs)  $(DESTDIR)$(bindir)
	$(mkinstalldirs)  $(DESTDIR)$(pkglibdir)

.PHONY: all binaries clean depend distclean doc install installdirs \
libraries test

# 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:








Added README.txt version [b7a2709a82].







































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Copyright (C) 1997-2000 Matt Newman <[email protected]>

$Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/README.txt,v 1.1.1.1 2000/01/19 22:10:58 aborr Exp $

TLS (aka SSL) Channel - can be layered on any bi-directional
Tcl_Channel (Note: Requires Trf Core Patch)

Both client and server-side sockets are possible, and this code
should work on any platform as it uses a generic mechanism for
layering on SSL and Tcl.

Full filevent sematics should also be intact - see tests directory for
blocking and non-blocking examples.

This was built (almost) from scratch based upon observation of OpenSSL 0.9.2B

Addition credit is due for Andreas Kupries ([email protected]), for
providing the Tcl_ReplaceChannel mechanism and working closely with me
to enhance it to support full fileevent semantics.

Also work done by the follow people provided the impetus to do this "right":-
tclSSL (Colin McCormack, Shared Technology)
SSLtcl (Peter Antman)

This code is licensed until the same terms as the Tcl Core.

I would also like to acknowledge the input of Marshall Rose, who convinced 
me that people need to be able to switch-to-encrypted mode part way
through a conversation.

Also I would like to acknowledge the kind support of Novadigm Inc, my
current employer, which made this possible.


Matt Newman








Added aclocal.m4 version [8832288cc4].





1

+

builtin(include,tcl.m4)








Added configure.in version [db80eec56e].































































































































































































































































































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dnl "configure.in" for the "tls" Tcl extension.
dnl 
dnl This file is an input file used by the GNU "autoconf" program to
dnl generate the file "configure", which is run during Tcl
dnl installation to configure the system for the local environment.


#--------------------------------------------------------------------
# macro used to verify that the configure script can find the sources
#--------------------------------------------------------------------

AC_INIT(tls.h)


#--------------------------------------------------------------------
# Set package name and version numbers here.  The NODOT_VERSION is
# required for constructing the library name on systems that don't
# like dots in # library names (Windows).  The VERSION variable is
# used on the other systems.
#--------------------------------------------------------------------

PACKAGE=tls

MAJOR_VERSION=1
MINOR_VERSION=3
PATCHLEVEL=

VERSION=${MAJOR_VERSION}.${MINOR_VERSION}${PATCHLEVEL}
NODOT_VERSION=${MAJOR_VERSION}${MINOR_VERSION}

AC_SUBST(PACKAGE)
AC_SUBST(VERSION)


#--------------------------------------------------------------------
# We put this here so that you can compile with -DVERSION="1.2" to
# encode the package version directly into the source files.
#--------------------------------------------------------------------

eval AC_DEFINE_UNQUOTED(VERSION, "${VERSION}")
eval AC_DEFINE_UNQUOTED(PACKAGE, "${PACKAGE}")


#--------------------------------------------------------------------
# Establish the location of the root directory for OpenSSL.
#--------------------------------------------------------------------

SSL_DIR='/usr/local/openssl'

AC_ARG_WITH(ssl-dir, [  --with-ssl-dir=DIR  SSL root directory], SSL_DIR=$withval)

if test -z "${SSL_DIR}"; then
    AC_ERROR(must specify SSL directory)
fi
if test ! -f "${SSL_DIR}/include/openssl/opensslv.h"; then
    AC_ERROR(bad ssl-dir: cant find opensslv.h under ${SSL_DIR})
fi

SSL_LIB_DIR=${SSL_DIR}/lib
SSL_INCLUDE_DIR=${SSL_DIR}/include

AC_SUBST(SSL_DIR)
AC_SUBST(SSL_LIB_DIR)
AC_SUBST(SSL_INCLUDE_DIR)


#--------------------------------------------------------------------
# Check whether --enable-gcc or --disable-gcc was given.  Do this 
# before AC_CYGWIN is called so the compiler can be fully tested by
# built-in autoconf tools.  This macro also calls AC_PROG_CC to set
# the compiler if --enable-gcc was not used.
#--------------------------------------------------------------------

SC_ENABLE_GCC
AC_PROG_INSTALL


#--------------------------------------------------------------------
# Checks to see if the make program sets the $MAKE variable.
#--------------------------------------------------------------------

AC_PROG_MAKE_SET

#--------------------------------------------------------------------
# Find ranlib
#--------------------------------------------------------------------

AC_PROG_RANLIB

#--------------------------------------------------------------------
# This macro performs additional compiler tests.
#--------------------------------------------------------------------

AC_CYGWIN

#--------------------------------------------------------------------
# Determines the correct binary file extension (.o, .obj, .exe etc.)
#--------------------------------------------------------------------

AC_OBJEXT
AC_EXEEXT

#--------------------------------------------------------------------
# "cygpath" is used on windows to generate native path names for
# include files.  These variables should only be used with the
# compiler and linker since # they generate native path names.
#
# Unix tclConfig.sh points SRC_DIR at the top-level directory of
# the Tcl sources, while the Windows tclConfig.sh points SRC_DIR at
# the win subdirectory.  Hence the different usages of SRC_DIR below.
#
# This must be done before calling SC_PUBLIC_TCL_HEADERS or
# SC_PRIVATE_TCL_HEADERS.
#--------------------------------------------------------------------

case "`uname -s`" in
    *win32* | *WIN32* | *CYGWIN_NT*)
	CYGPATH="cygpath -w"
    ;;
    *)
	CYGPATH=echo
    ;;
esac

AC_SUBST(CYGPATH)

SSL_INCLUDE_DIR_NATIVE=\"`${CYGPATH} ${SSL_INCLUDE_DIR}`\"
AC_SUBST(SSL_INCLUDE_DIR_NATIVE)


#--------------------------------------------------------------------
# Load the tclConfig.sh file
#--------------------------------------------------------------------

SC_PATH_TCLCONFIG
SC_LOAD_TCLCONFIG

SC_PRIVATE_TCL_HEADERS

#--------------------------------------------------------------------
# A few miscellaneous platform-specific items:
#
# Define a special symbol for Windows (BUILD_tls in this case) so
# that we create the export library with the dll.
#
# Clean up any extra files that Windows creates.
#
# Define any extra compiler flags in the PACKAGE_CFLAGS variable.
# These will be appended to the current set of compiler flags for
# your system.
#--------------------------------------------------------------------

case "`uname -s`" in
    *win32* | *WIN32* | *CYGWIN_NT*)
	AC_DEFINE_UNQUOTED(BUILD_${PACKAGE})
	CLEANFILES="*.lib *.dll *.exp *.ilk *.pdb vc50.pch"
	AC_SUBST(CLEANFILES)
    ;;
    *)
	CLEANFILES=
    ;;
esac

#--------------------------------------------------------------------
# Check whether --enable-threads or --disable-threads was given.
# So far only Tcl responds to this one.
#--------------------------------------------------------------------

SC_ENABLE_THREADS

#--------------------------------------------------------------------
# The statement below defines a collection of symbols related to
# building as a shared library instead of a static library.
#--------------------------------------------------------------------

SC_ENABLE_SHARED

#--------------------------------------------------------------------
# This macro figures out what flags to use with the compiler/linker
# when building shared/static debug/optimized objects.  This information
# is all taken from the tclConfig.sh file.
#--------------------------------------------------------------------

CFLAGS_DEBUG=${TCL_CFLAGS_DEBUG}
CFLAGS_OPTIMIZE=${TCL_CFLAGS_OPTIMIZE}
LDFLAGS_DEBUG=${TCL_LDFLAGS_DEBUG}
LDFLAGS_OPTIMIZE=${TCL_LDFLAGS_OPTIMIZE}
SHLIB_LD=${TCL_SHLIB_LD}
STLIB_LD=${TCL_STLIB_LD}
SHLIB_CFLAGS=${TCL_SHLIB_CFLAGS}

AC_SUBST(CFLAGS_DEBUG)
AC_SUBST(CFLAGS_OPTIMIZE)
AC_SUBST(STLIB_LD)
AC_SUBST(SHLIB_LD)
AC_SUBST(SHLIB_CFLAGS)
AC_SUBST(SHLIB_LDFLAGS)

#--------------------------------------------------------------------
# Set the default compiler switches based on the --enable-symbols 
# option.
#--------------------------------------------------------------------

SC_ENABLE_SYMBOLS

if test "${SHARED_BUILD}" = "1" ; then
    CFLAGS='${CFLAGS_DEFAULT} ${CFLAGS_WARNING} ${SHLIB_CFLAGS}'
else
    CFLAGS='${CFLAGS_DEFAULT} ${CFLAGS_WARNING}'
fi

#--------------------------------------------------------------------
# Everyone should be linking against the Tcl stub library.  If you
# can't for some reason, remove this definition.  If you aren't using
# stubs, you also need to modify the SHLIB_LD_LIBS setting below to
# link against the non-stubbed Tcl library.
#--------------------------------------------------------------------

AC_DEFINE(USE_TCL_STUBS)

#--------------------------------------------------------------------
# This macro generates a line to use when building a library.  It
# depends on values set by the SC_ENABLE_SHARED, SC_ENABLE_SYMBOLS,
# and SC_LOAD_TCLCONFIG macros above.
#--------------------------------------------------------------------

SC_MAKE_LIB

#--------------------------------------------------------------------
# eval these two values to dereference the ${DBGX} variable.
#--------------------------------------------------------------------

eval "SHARED_LIB_SUFFIX=${TCL_SHARED_LIB_SUFFIX}"
eval "UNSHARED_LIB_SUFFIX=${TCL_UNSHARED_LIB_SUFFIX}"

#--------------------------------------------------------------------
# Shared libraries and static libraries have different names.
# Also, windows libraries and unix libraries have different names.
# (I chose to use the names that OpenSSL uses as its default names.)
#--------------------------------------------------------------------

case "`uname -s`" in
    *win32* | *WIN32* | *CYGWIN_NT*)
	if test "${SHARED_BUILD}" = "1" ; then
	    SHLIB_LD_LIBS="\"`${CYGPATH} ${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}`\" ${TCL_SHLIB_LD_LIBS} \"`${CYGPATH} ${SSL_LIB_DIR}/ssleay32.lib`\" \"`${CYGPATH} ${SSL_LIB_DIR}/libeay32.lib`\""
	    eval "${PACKAGE}_LIB_FILE=${PACKAGE}${SHARED_LIB_SUFFIX}"
	    RANLIB=:
	else
	    eval "${PACKAGE}_LIB_FILE=${PACKAGE}${UNSHARED_LIB_SUFFIX}"
	fi
	;;
    *)
	if test "${SHARED_BUILD}" = "1" ; then
	    SHLIB_LD_LIBS="${TCL_STUB_LIB_SPEC} -L${SSL_LIB_DIR} -lssl -L${SSL_LIB_DIR} -lcrypto"
	    eval "${PACKAGE}_LIB_FILE=lib${PACKAGE}${SHARED_LIB_SUFFIX}"
	    RANLIB=:
	else
	    eval "${PACKAGE}_LIB_FILE=lib${PACKAGE}${UNSHARED_LIB_SUFFIX}"
	fi
	;;
esac


AC_SUBST(tls_LIB_FILE)
AC_SUBST(SHLIB_LD_LIBS)

#--------------------------------------------------------------------
# Find tclsh so that we can run pkg_mkIndex to generate the pkgIndex.tcl
# file during the install process.  Don't run the TCLSH_PROG through
# ${CYGPATH} because it's being used directly by make.
# Require that we use a tclsh shell version 8.2 or later since earlier
# versions have bugs in the pkg_mkIndex routine.
#--------------------------------------------------------------------

SC_PROG_TCLSH

#--------------------------------------------------------------------
# Finally, substitute all of the various values into the Makefile.
#--------------------------------------------------------------------

AC_OUTPUT([Makefile \
	pkgIndex.tcl])








Added fixstrtod.c version [097c39a2a6].










































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/* 
 * fixstrtod.c --
 *
 *	Source code for the "fixstrtod" procedure.  This procedure is
 *	used in place of strtod under Solaris 2.4, in order to fix
 *	a bug where the "end" pointer gets set incorrectly.
 *
 * Copyright (c) 1995 Sun Microsystems, Inc.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * SCCS: @(#) fixstrtod.c 1.5 96/02/15 12:08:21
 */

#include <stdio.h>

#undef strtod

/*
 * Declare strtod explicitly rather than including stdlib.h, since in
 * somes systems (e.g. SunOS 4.1.4) stdlib.h doesn't declare strtod.
 */

extern double strtod();

double
fixstrtod(string, endPtr)
    char *string;
    char **endPtr;
{
    double d;
    d = strtod(string, endPtr);
    if ((endPtr != NULL) && (*endPtr != string) && ((*endPtr)[-1] == 0)) {
	*endPtr -= 1;
    }
    return d;
}








Added install-sh version [b087e5c4b9].



























































































































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#!/bin/sh

#
# install - install a program, script, or datafile
# This comes from X11R5; it is not part of GNU.
#
# $XConsortium: install.sh,v 1.2 89/12/18 14:47:22 jim Exp $
#
# This script is compatible with the BSD install script, but was written
# from scratch.
#


# set DOITPROG to echo to test this script

# Don't use :- since 4.3BSD and earlier shells don't like it.
doit="${DOITPROG-}"


# put in absolute paths if you don't have them in your path; or use env. vars.

mvprog="${MVPROG-mv}"
cpprog="${CPPROG-cp}"
chmodprog="${CHMODPROG-chmod}"
chownprog="${CHOWNPROG-chown}"
chgrpprog="${CHGRPPROG-chgrp}"
stripprog="${STRIPPROG-strip}"
rmprog="${RMPROG-rm}"

instcmd="$mvprog"
chmodcmd=""
chowncmd=""
chgrpcmd=""
stripcmd=""
rmcmd="$rmprog -f"
mvcmd="$mvprog"
src=""
dst=""

while [ x"$1" != x ]; do
    case $1 in
	-c) instcmd="$cpprog"
	    shift
	    continue;;

	-m) chmodcmd="$chmodprog $2"
	    shift
	    shift
	    continue;;

	-o) chowncmd="$chownprog $2"
	    shift
	    shift
	    continue;;

	-g) chgrpcmd="$chgrpprog $2"
	    shift
	    shift
	    continue;;

	-s) stripcmd="$stripprog"
	    shift
	    continue;;

	*)  if [ x"$src" = x ]
	    then
		src=$1
	    else
		dst=$1
	    fi
	    shift
	    continue;;
    esac
done

if [ x"$src" = x ]
then
	echo "install:  no input file specified"
	exit 1
fi

if [ x"$dst" = x ]
then
	echo "install:  no destination specified"
	exit 1
fi


# If destination is a directory, append the input filename; if your system
# does not like double slashes in filenames, you may need to add some logic

if [ -d $dst ]
then
	dst="$dst"/`basename $src`
fi

# Make a temp file name in the proper directory.

dstdir=`dirname $dst`
dsttmp=$dstdir/#inst.$$#

# Move or copy the file name to the temp name

$doit $instcmd $src $dsttmp

# and set any options; do chmod last to preserve setuid bits

if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; fi
if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; fi
if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; fi
if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; fi

# Now rename the file to the real destination.

$doit $rmcmd $dst
$doit $mvcmd $dsttmp $dst


exit 0








Added license.terms version [767ca58173].










































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This software is copyrighted by Matt Newman <[email protected]> and other parties.
The following terms apply to all files associated with the software
unless explicitly disclaimed in individual files.

The authors hereby grant permission to use, copy, modify, distribute,
and license this software and its documentation for any purpose, provided
that existing copyright notices are retained in all copies and that this
notice is included verbatim in any distributions. No written agreement,
license, or royalty fee is required for any of the authorized uses.
Modifications to this software may be copyrighted by their authors
and need not follow the licensing terms described here, provided that
the new terms are clearly indicated on the first page of each file where
they apply.

IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.

THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.  THIS SOFTWARE
IS PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE
NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
MODIFICATIONS.

GOVERNMENT USE: If you are acquiring this software on behalf of the
U.S. government, the Government shall have only "Restricted Rights"
in the software and related documentation as defined in the Federal 
Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2).  If you
are acquiring the software on behalf of the Department of Defense, the
software shall be classified as "Commercial Computer Software" and the
Government shall have only "Restricted Rights" as defined in Clause
252.227-7013 (c) (1) of DFARs.  Notwithstanding the foregoing, the
authors grant the U.S. Government and others acting in its behalf
permission to use and distribute the software in accordance with the
terms specified in this license. 








Added mkinstalldirs version [e2b600f159].












































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#! /bin/sh
# mkinstalldirs --- make directory hierarchy
# Author: Noah Friedman <[email protected]>
# Created: 1993-05-16
# Public domain

# $Id: mkinstalldirs,v 1.1.1.1 2000/01/19 22:10:58 aborr Exp $

errstatus=0

for file
do
   set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`
   shift

   pathcomp=
   for d
   do
     pathcomp="$pathcomp$d"
     case "$pathcomp" in
       -* ) pathcomp=./$pathcomp ;;
     esac

     if test ! -d "$pathcomp"; then
        echo "mkdir $pathcomp"

        mkdir "$pathcomp" || lasterr=$?

        if test ! -d "$pathcomp"; then
  	  errstatus=$lasterr
        fi
     fi

     pathcomp="$pathcomp/"
   done
done

exit $errstatus

# mkinstalldirs ends here








Added pkgIndex.tcl.in version [b55cb5d9e5].













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# pkgIndex.tcl -
#    A new manually generated "pkgIndex.tcl" file for tls to replace the original
#    which didn't include the commands from "tls.tcl".
#
#    Al Borr 12/99, last revised Jan 11/00.

package ifneeded tls 1.3 "[list load [file join $dir @tls_LIB_FILE@] ] ; [list source [file join $dir tls.tcl] ]"









Added strncasecmp.c version [d3080a2ac0].


















































































































































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/* 
 * strncasecmp.c --
 *
 *	Source code for the "strncasecmp" library routine.
 *
 * Copyright (c) 1988-1993 The Regents of the University of California.
 * Copyright (c) 1995-1996 Sun Microsystems, Inc.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * SCCS: @(#) strncasecmp.c 1.7 96/10/24 15:23:36
 */

#include "tclPort.h"

/*
 * This array is designed for mapping upper and lower case letter
 * together for a case independent comparison.  The mappings are
 * based upon ASCII character sequences.
 */

static unsigned char charmap[] = {
    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
    0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
    0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
    0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
    0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
    0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
    0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
    0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
    0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
    0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
    0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
    0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
    0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
    0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
    0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
    0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
    0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
    0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
    0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
    0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
    0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
    0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
    0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
    0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
    0xc0, 0xe1, 0xe2, 0xe3, 0xe4, 0xc5, 0xe6, 0xe7,
    0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
    0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
    0xf8, 0xf9, 0xfa, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
    0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
    0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
    0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
    0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff,
};

/*
 * Here are the prototypes just in case they are not included
 * in tclPort.h.
 */
int		strncasecmp _ANSI_ARGS_((CONST char *s1,
			    CONST char *s2, size_t n));

int		strcasecmp _ANSI_ARGS_((CONST char *s1,
			    CONST char *s2));

/*
 *----------------------------------------------------------------------
 *
 * strcasecmp --
 *
 *	Compares two strings, ignoring case differences.
 *
 * Results:
 *	Compares two null-terminated strings s1 and s2, returning -1, 0,
 *	or 1 if s1 is lexicographically less than, equal to, or greater
 *	than s2.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

int
strcasecmp(s1, s2)
    CONST char *s1;			/* First string. */
    CONST char *s2;			/* Second string. */
{
    unsigned char u1, u2;

    for ( ; ; s1++, s2++) {
	u1 = (unsigned char) *s1;
	u2 = (unsigned char) *s2;
	if ((u1 == '\0') || (charmap[u1] != charmap[u2])) {
	    break;
	}
    }
    return charmap[u1] - charmap[u2];
}

/*
 *----------------------------------------------------------------------
 *
 * strncasecmp --
 *
 *	Compares two strings, ignoring case differences.
 *
 * Results:
 *	Compares up to length chars of s1 and s2, returning -1, 0, or 1
 *	if s1 is lexicographically less than, equal to, or greater
 *	than s2 over those characters.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

int
strncasecmp(s1, s2, length)
    CONST char *s1;		/* First string. */
    CONST char *s2;		/* Second string. */
    size_t length;		/* Maximum number of characters to compare
				 * (stop earlier if the end of either string
				 * is reached). */
{
    unsigned char u1, u2;

    for (; length != 0; length--, s1++, s2++) {
	u1 = (unsigned char) *s1;
	u2 = (unsigned char) *s2;
	if (charmap[u1] != charmap[u2]) {
	    return charmap[u1] - charmap[u2];
	}
	if (u1 == '\0') {
	    return 0;
	}
    }
    return 0;
}








Added tcl.m4 version [b27a556637].




































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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# tcl.m4 --
#
#	This file provides a set of autoconf macros to help TEA-enable
#	a Tcl extension.
#
# Copyright (c) 1999 Scriptics Corporation.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.

#------------------------------------------------------------------------
# SC_PATH_TCLCONFIG --
#
#	Locate the tclConfig.sh file and perform a sanity check on
#	the Tcl compile flags
#
# Arguments:
#	none
#
# Results:
#
#	Adds the following arguments to configure:
#		--with-tcl=...
#
#	Defines the following vars:
#		TCL_BIN_DIR	Full path to the directory containing
#				the tclConfig.sh file
#------------------------------------------------------------------------

AC_DEFUN(SC_PATH_TCLCONFIG, [
    #
    # Ok, lets find the tcl configuration
    # First, look for one uninstalled.
    # the alternative search directory is invoked by --with-tcl
    #

    if test x"${no_tcl}" = x ; then
	# we reset no_tcl in case something fails here
	no_tcl=true
	AC_ARG_WITH(tcl, [  --with-tcl              directory containing tcl configuration (tclConfig.sh)], with_tclconfig=${withval})
	AC_MSG_CHECKING([for Tcl configuration])
	AC_CACHE_VAL(ac_cv_c_tclconfig,[

	    # First check to see if --with-tcl was specified.
	    if test x"${with_tclconfig}" != x ; then
		if test -f "${with_tclconfig}/tclConfig.sh" ; then
		    ac_cv_c_tclconfig=`(cd ${with_tclconfig}; pwd)`
		else
		    AC_MSG_ERROR([${with_tclconfig} directory doesn't contain tclConfig.sh])
		fi
	    fi

	    # then check for a private Tcl installation
	    if test x"${ac_cv_c_tclconfig}" = x ; then
		for i in \
			../tcl \
			`ls -dr ../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
			../../tcl \
			`ls -dr ../../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
			../../../tcl \
			`ls -dr ../../../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
		    if test -f "$i/unix/tclConfig.sh" ; then
			ac_cv_c_tclconfig=`(cd $i/unix; pwd)`
			break
		    fi
		done
	    fi

	    # check in a few common install locations
	    if test x"${ac_cv_c_tclconfig}" = x ; then
		for i in `ls -d ${prefix}/lib 2>/dev/null` \
			`ls -d /usr/local/lib 2>/dev/null` ; do
		    if test -f "$i/tclConfig.sh" ; then
			ac_cv_c_tclconfig=`(cd $i; pwd)`
			break
		    fi
		done
	    fi

	    # check in a few other private locations
	    if test x"${ac_cv_c_tclconfig}" = x ; then
		for i in \
			${srcdir}/../tcl \
			`ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
		    if test -f "$i/unix/tclConfig.sh" ; then
		    ac_cv_c_tclconfig=`(cd $i/unix; pwd)`
		    break
		fi
		done
	    fi
	])

	if test x"${ac_cv_c_tclconfig}" = x ; then
	    TCL_BIN_DIR="# no Tcl configs found"
	    AC_MSG_WARN(Can't find Tcl configuration definitions)
	    exit 0
	else
	    no_tcl=
	    TCL_BIN_DIR=${ac_cv_c_tclconfig}
	    AC_MSG_RESULT(found $TCL_BIN_DIR/tclConfig.sh)
	fi
    fi
])

#------------------------------------------------------------------------
# SC_PATH_TKCONFIG --
#
#	Locate the tkConfig.sh file
#
# Arguments:
#	none
#
# Results:
#
#	Adds the following arguments to configure:
#		--with-tk=...
#
#	Defines the following vars:
#		TK_BIN_DIR	Full path to the directory containing
#				the tkConfig.sh file
#------------------------------------------------------------------------

AC_DEFUN(SC_PATH_TKCONFIG, [
    #
    # Ok, lets find the tk configuration
    # First, look for one uninstalled.
    # the alternative search directory is invoked by --with-tk
    #

    if test x"${no_tk}" = x ; then
	# we reset no_tk in case something fails here
	no_tk=true
	AC_ARG_WITH(tk, [  --with-tk               directory containing tk configuration (tkConfig.sh)], with_tkconfig=${withval})
	AC_MSG_CHECKING([for Tk configuration])
	AC_CACHE_VAL(ac_cv_c_tkconfig,[

	    # First check to see if --with-tkconfig was specified.
	    if test x"${with_tkconfig}" != x ; then
		if test -f "${with_tkconfig}/tkConfig.sh" ; then
		    ac_cv_c_tkconfig=`(cd ${with_tkconfig}; pwd)`
		else
		    AC_MSG_ERROR([${with_tkconfig} directory doesn't contain tkConfig.sh])
		fi
	    fi

	    # then check for a private Tk library
	    if test x"${ac_cv_c_tkconfig}" = x ; then
		for i in \
			../tk \
			`ls -dr ../tk[[8-9]].[[0-9]]* 2>/dev/null` \
			../../tk \
			`ls -dr ../../tk[[8-9]].[[0-9]]* 2>/dev/null` \
			../../../tk \
			`ls -dr ../../../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do
		    if test -f "$i/unix/tkConfig.sh" ; then
			ac_cv_c_tkconfig=`(cd $i/unix; pwd)`
			break
		    fi
		done
	    fi
	    # check in a few common install locations
	    if test x"${ac_cv_c_tkconfig}" = x ; then
		for i in `ls -d ${prefix}/lib 2>/dev/null` \
			`ls -d /usr/local/lib 2>/dev/null` ; do
		    if test -f "$i/tkConfig.sh" ; then
			ac_cv_c_tkconfig=`(cd $i; pwd)`
			break
		    fi
		done
	    fi
	    # check in a few other private locations
	    if test x"${ac_cv_c_tkconfig}" = x ; then
		for i in \
			${srcdir}/../tk \
			`ls -dr ${srcdir}/../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do
		    if test -f "$i/unix/tkConfig.sh" ; then
			ac_cv_c_tkconfig=`(cd $i/unix; pwd)`
			break
		    fi
		done
	    fi
	])
	if test x"${ac_cv_c_tkconfig}" = x ; then
	    TK_BIN_DIR="# no Tk configs found"
	    AC_MSG_WARN(Can't find Tk configuration definitions)
	    exit 0
	else
	    no_tk=
	    TK_BIN_DIR=${ac_cv_c_tkconfig}
	    AC_MSG_RESULT(found $TK_BIN_DIR/tkConfig.sh)
	fi
    fi

])

#------------------------------------------------------------------------
# SC_LOAD_TCLCONFIG --
#
#	Load the tclConfig.sh file
#
# Arguments:
#	
#	Requires the following vars to be set:
#		TCL_BIN_DIR
#
# Results:
#
#	Subst the following vars:
#		TCL_BIN_DIR
#		TCL_SRC_DIR
#		TCL_LIB_FILE
#
#------------------------------------------------------------------------

AC_DEFUN(SC_LOAD_TCLCONFIG, [
    AC_MSG_CHECKING([for existence of $TCL_BIN_DIR/tclConfig.sh])

    if test -f "$TCL_BIN_DIR/tclConfig.sh" ; then
        AC_MSG_RESULT([loading])
	. $TCL_BIN_DIR/tclConfig.sh
    else
        AC_MSG_RESULT([file not found])
    fi

    #
    # The eval is required to do the TCL_DBGX substitution in the
    # TCL_LIB_FILE variable
    #

    eval TCL_LIB_FILE=${TCL_LIB_FILE}
    eval TCL_LIB_FLAG=${TCL_LIB_FLAG}

    AC_SUBST(TCL_DBGX)
    AC_SUBST(TCL_BIN_DIR)
    AC_SUBST(TCL_SRC_DIR)
    AC_SUBST(TCL_LIB_FILE)
    AC_SUBST(TCL_LIBS)
    AC_SUBST(TCL_DEFS)
    AC_SUBST(TCL_SHLIB_LD_LIBS)
    AC_SUBST(TCL_EXTRA_CFLAGS)
    AC_SUBST(TCL_LD_FLAGS)
    AC_SUBST(TCL_LIB_FILE)
    AC_SUBST(TCL_STUB_LIB_FILE)
    AC_SUBST(TCL_LIB_SPEC)
    AC_SUBST(TCL_BUILD_LIB_SPEC)
    AC_SUBST(TCL_STUB_LIB_SPEC)
    AC_SUBST(TCL_BUILD_STUB_LIB_SPEC)
])

#------------------------------------------------------------------------
# SC_LOAD_TKCONFIG --
#
#	Load the tkConfig.sh file
#
# Arguments:
#	
#	Requires the following vars to be set:
#		TK_BIN_DIR
#
# Results:
#
#	Sets the following vars that should be in tkConfig.sh:
#		TK_BIN_DIR
#------------------------------------------------------------------------

AC_DEFUN(SC_LOAD_TKCONFIG, [
    AC_MSG_CHECKING([for existence of $TK_BIN_DIR/tkConfig.sh])

    if test -f "$TK_BIN_DIR/tkConfig.sh" ; then
        AC_MSG_RESULT([loading])
	. $TK_BIN_DIR/tkConfig.sh
    else
        AC_MSG_RESULT([could not find $TK_BIN_DIR/tkConfig.sh])
    fi

    AC_SUBST(TK_BIN_DIR)
    AC_SUBST(TK_SRC_DIR)
    AC_SUBST(TK_LIB_FILE)
    AC_SUBST(TK_XINCLUDES)
])

#------------------------------------------------------------------------
# SC_ENABLE_GCC --
#
#	Allows the use of GCC if available
#
# Arguments:
#	none
#	
# Results:
#
#	Adds the following arguments to configure:
#		--enable-gcc
#
#	Sets the following vars:
#		CC	Command to use for the compiler
#------------------------------------------------------------------------

AC_DEFUN(SC_ENABLE_GCC, [
    AC_ARG_ENABLE(gcc, [  --enable-gcc            allow use of gcc if available [--disable-gcc]],
	[ok=$enableval], [ok=no])
    if test "$ok" = "yes"; then
	CC=gcc
    else
	case "`uname -s`" in
	    *win32* | *WIN32* | *CYGWIN_NT*)
		CC=cl
	    ;;
	    *)
		CC=${CC-cc}
	    ;;
	esac
    fi
    AC_PROG_CC
])

#------------------------------------------------------------------------
# SC_ENABLE_SHARED --
#
#	Allows the building of shared libraries
#
# Arguments:
#	none
#	
# Results:
#
#	Adds the following arguments to configure:
#		--enable-shared=yes|no
#
#	Defines the following vars:
#		STATIC_BUILD	Used for building import/export libraries
#				on Windows.
#
#	Sets the following vars:
#		SHARED_BUILD	Value of 1 or 0
#------------------------------------------------------------------------

AC_DEFUN(SC_ENABLE_SHARED, [
    AC_MSG_CHECKING([how to build libraries])
    AC_ARG_ENABLE(shared,
	[  --enable-shared         build and link with shared libraries [--enable-shared]],
	[tcl_ok=$enableval], [tcl_ok=yes])

    if test "${enable_shared+set}" = set; then
	enableval="$enable_shared"
	tcl_ok=$enableval
    else
	tcl_ok=yes
    fi

    if test "$tcl_ok" = "yes" ; then
	AC_MSG_RESULT([shared])
	SHARED_BUILD=1
    else
	AC_MSG_RESULT([static])
	SHARED_BUILD=0
	AC_DEFINE(STATIC_BUILD)
    fi
])

#------------------------------------------------------------------------
# SC_ENABLE_THREADS --
#
#	Specify if thread support should be enabled
#
# Arguments:
#	none
#	
# Results:
#
#	Adds the following arguments to configure:
#		--enable-threads
#
#	Sets the following vars:
#		THREADS_LIBS	Thread library(s)
#
#	Defines the following vars:
#		TCL_THREADS
#		_REENTRANT
#
#------------------------------------------------------------------------

AC_DEFUN(SC_ENABLE_THREADS, [
    AC_MSG_CHECKING(for building with threads)
    AC_ARG_ENABLE(threads, [  --enable-threads        build with threads],
	[tcl_ok=$enableval], [tcl_ok=no])

    if test "$tcl_ok" = "yes"; then
	TCL_THREADS=1
	AC_DEFINE(TCL_THREADS)
	AC_DEFINE(_REENTRANT)

	case "`uname -s`" in
	    *win32* | *WIN32* | *CYGWIN_NT*)
		    AC_MSG_RESULT(yes)
		;;
	    *)
		AC_CHECK_LIB(pthread,pthread_mutex_init,tcl_ok=yes,tcl_ok=no)
		if test "$tcl_ok" = "yes"; then
		    # The space is needed
		    THREADS_LIBS=" -lpthread"
		    AC_MSG_RESULT(yes)
		else
		    TCL_THREADS=0
		    AC_MSG_RESULT(no)
		    AC_MSG_WARN("Don t know how to find pthread lib on your system - you must disable thread support or edit the LIBS in the Makefile...")
		fi
		;;
	esac
    else
	TCL_THREADS=0
	AC_MSG_RESULT(no (default))
    fi

])

#------------------------------------------------------------------------
# SC_ENABLE_SYMBOLS --
#
#	Specify if debugging symbols should be used
#
# Arguments:
#	none
#	
#	Requires the following vars to be set:
#		CFLAGS_DEBUG
#		CFLAGS_OPTIMIZE
#		LDFLAGS_DEBUG
#		LDFLAGS_OPTIMIZE
#	
# Results:
#
#	Adds the following arguments to configure:
#		--enable-symbols
#
#	Defines the following vars:
#		CFLAGS_DEFAULT	Sets to CFLAGS_DEBUG if true
#				Sets to CFLAGS_OPTIMIZE if false
#		LDFLAGS_DEFAULT	Sets to LDFLAGS_DEBUG if true
#				Sets to LDFLAGS_OPTIMIZE if false
#		DBGX		Debug library extension
#
#------------------------------------------------------------------------

AC_DEFUN(SC_ENABLE_SYMBOLS, [
    case "`uname -s`" in
	*win32* | *WIN32* | *CYGWIN_NT*)
	    tcl_dbgx=d
	;;
	*)
	    tcl_dbgx=g
	;;
    esac

    AC_MSG_CHECKING([for build with symbols])
    AC_ARG_ENABLE(symbols, [  --enable-symbols        build with debugging symbols [--disable-symbols]],    [tcl_ok=$enableval], [tcl_ok=no])
    if test "$tcl_ok" = "yes"; then
	CFLAGS_DEFAULT="${CFLAGS_DEBUG}"
	LDFLAGS_DEFAULT="${LDFLAGS_DEBUG}"
	DBGX=${tcl_dbgx}
	TCL_DBGX=${tcl_dbgx}
	AC_MSG_RESULT([yes])
    else
	CFLAGS_DEFAULT="${CFLAGS_OPTIMIZE}"
	LDFLAGS_DEFAULT="${LDFLAGS_OPTIMIZE}"
	DBGX=""
	TCL_DBGX=""
	AC_MSG_RESULT([no])
    fi

    AC_SUBST(TCL_DBGX)
    AC_SUBST(CFLAGS_DEFAULT)
    AC_SUBST(LDFLAGS_DEFAULT)
])

#--------------------------------------------------------------------
# SC_CONFIG_CFLAGS
#
#	Try to determine the proper flags to pass to the compiler
#	for building shared libraries and other such nonsense.
#
# Arguments:
#	none
#
# Results:
#
#	Defines the following vars:
#
#       DL_OBJS -       Name of the object file that implements dynamic
#                       loading for Tcl on this system.
#       DL_LIBS -       Library file(s) to include in tclsh and other base
#                       applications in order for the "load" command to work.
#       LDFLAGS -      Flags to pass to the compiler when linking object
#                       files into an executable application binary such
#                       as tclsh.
#       LD_SEARCH_FLAGS-Flags to pass to ld, such as "-R /usr/local/tcl/lib",
#                       that tell the run-time dynamic linker where to look
#                       for shared libraries such as libtcl.so.  Depends on
#                       the variable LIB_RUNTIME_DIR in the Makefile.
#       MAKE_LIB -      Command to execute to build the Tcl library;
#                       differs depending on whether or not Tcl is being
#                       compiled as a shared library.
#       SHLIB_CFLAGS -  Flags to pass to cc when compiling the components
#                       of a shared library (may request position-independent
#                       code, among other things).
#       SHLIB_LD -      Base command to use for combining object files
#                       into a shared library.
#       SHLIB_LD_LIBS - Dependent libraries for the linker to scan when
#                       creating shared libraries.  This symbol typically
#                       goes at the end of the "ld" commands that build
#                       shared libraries. The value of the symbol is
#                       "${LIBS}" if all of the dependent libraries should
#                       be specified when creating a shared library.  If
#                       dependent libraries should not be specified (as on
#                       SunOS 4.x, where they cause the link to fail, or in
#                       general if Tcl and Tk aren't themselves shared
#                       libraries), then this symbol has an empty string
#                       as its value.
#       SHLIB_SUFFIX -  Suffix to use for the names of dynamically loadable
#                       extensions.  An empty string means we don't know how
#                       to use shared libraries on this platform.
#       TCL_LIB_FILE -  Name of the file that contains the Tcl library, such
#                       as libtcl7.8.so or libtcl7.8.a.
#       TCL_LIB_SUFFIX -Specifies everything that comes after the "libtcl"
#                       in the shared library name, using the $VERSION variable
#                       to put the version in the right place.  This is used
#                       by platforms that need non-standard library names.
#                       Examples:  ${VERSION}.so.1.1 on NetBSD, since it needs
#                       to have a version after the .so, and ${VERSION}.a
#                       on AIX, since the Tcl shared library needs to have
#                       a .a extension whereas shared objects for loadable
#                       extensions have a .so extension.  Defaults to
#                       ${VERSION}${SHLIB_SUFFIX}.
#       TCL_NEEDS_EXP_FILE -
#                       1 means that an export file is needed to link to a
#                       shared library.
#       TCL_EXP_FILE -  The name of the installed export / import file which
#                       should be used to link to the Tcl shared library.
#                       Empty if Tcl is unshared.
#       TCL_BUILD_EXP_FILE -
#                       The name of the built export / import file which
#                       should be used to link to the Tcl shared library.
#                       Empty if Tcl is unshared.
#	CFLAGS_DEBUG -
#			Flags used when running the compiler in debug mode
#	CFLAGS_OPTIMIZE -
#			Flags used when running the compiler in optimize mode
#
#	EXTRA_CFLAGS
#
#	Subst's the following vars:
#		DL_LIBS
#		CFLAGS_DEBUG
#		CFLAGS_OPTIMIZE
#--------------------------------------------------------------------

AC_DEFUN(SC_CONFIG_CFLAGS, [

    # Step 0: Enable 64 bit support?

    AC_MSG_CHECKING([if 64bit support is enabled])
    AC_ARG_ENABLE(64bit,[  --enable-64bit          enable 64bit support],,enableval="no")

    if test "$enableval" = "yes"; then
	AC_MSG_RESULT(Will compile with 64bit support)
	do64bit=yes
    else
	do64bit=no
    fi
    AC_MSG_RESULT($do64bit)
 
    # Step 1: set the variable "system" to hold the name and version number
    # for the system.  This can usually be done via the "uname" command, but
    # there are a few systems, like Next, where this doesn't work.

    AC_MSG_CHECKING([system version (for dynamic loading)])
    if test -f /usr/lib/NextStep/software_version; then
	system=NEXTSTEP-`awk '/3/,/3/' /usr/lib/NextStep/software_version`
    else
	system=`uname -s`-`uname -r`
	if test "$?" -ne 0 ; then
	    AC_MSG_RESULT([unknown (can't find uname command)])
	    system=unknown
	else
	    # Special check for weird MP-RAS system (uname returns weird
	    # results, and the version is kept in special file).
	
	    if test -r /etc/.relid -a "X`uname -n`" = "X`uname -s`" ; then
		system=MP-RAS-`awk '{print $3}' /etc/.relid'`
	    fi
	    if test "`uname -s`" = "AIX" ; then
		system=AIX-`uname -v`.`uname -r`
	    fi
	    AC_MSG_RESULT($system)
	fi
    fi

    # Step 2: check for existence of -ldl library.  This is needed because
    # Linux can use either -ldl or -ldld for dynamic loading.

    AC_CHECK_LIB(dl, dlopen, have_dl=yes, have_dl=no)

    # Step 3: set configuration options based on system name and version.

    do64bit_ok=no
    fullSrcDir=`cd $srcdir; pwd`
    EXTRA_CFLAGS=""
    TCL_EXPORT_FILE_SUFFIX=""
    UNSHARED_LIB_SUFFIX=""
    TCL_TRIM_DOTS='`echo ${VERSION} | tr -d .`'
    ECHO_VERSION='`echo ${VERSION}`'
    TCL_LIB_VERSIONS_OK=ok
    CFLAGS_DEBUG=-g
    CFLAGS_OPTIMIZE=-O
    TCL_NEEDS_EXP_FILE=0
    TCL_BUILD_EXP_FILE=""
    TCL_EXP_FILE=""
    STLIB_LD="ar cr"
    case $system in
	AIX-4.[[2-9]])
	    SHLIB_CFLAGS=""
	    SHLIB_LD="$fullSrcDir/ldAix /bin/ld -bhalt:4 -bM:SRE -bE:lib.exp -H512 -T512 -bnoentry"
	    SHLIB_LD_LIBS='${LIBS}'
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS=""
	    LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
	    TCL_NEEDS_EXP_FILE=1
	    TCL_EXPORT_FILE_SUFFIX='${VERSION}\$\{DBGX\}.exp'
	    ;;
	AIX-*)
	    SHLIB_CFLAGS=""
	    SHLIB_LD="$fullSrcDir/ldAix /bin/ld -bhalt:4 -bM:SRE -bE:lib.exp -H512 -T512"
	    SHLIB_LD_LIBS='${LIBS}'
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    LIBOBJS="$LIBOBJS tclLoadAix.o"
	    DL_LIBS="-lld"
	    LDFLAGS=""
	    LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
	    TCL_NEEDS_EXP_FILE=1
	    TCL_EXPORT_FILE_SUFFIX='${VERSION}\$\{DBGX\}.exp'
	    ;;
	BSD/OS-2.1*|BSD/OS-3*)
	    SHLIB_CFLAGS=""
	    SHLIB_LD="shlicc -r"
	    SHLIB_LD_LIBS='${LIBS}'
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	BSD/OS-4.*)
	    SHLIB_CFLAGS="-export-dynamic -fPIC"
	    SHLIB_LD="cc -shared"
	    SHLIB_LD_LIBS='${LIBS}'
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS="-export-dynamic"
	    LD_SEARCH_FLAGS=""
	    ;;
	*win32*|*WIN32*|CYGWIN_NT*|cygwin_nt*)
	    CFLAGS_DEBUG="-nologo -Z7 -Od -WX ${runtime}d"
	    CFLAGS_OPTIMIZE="-nologo -Oti -Gs -GD ${runtime}"
	    LDFLAGS_CONSOLE="-subsystem:console"
	    LDFLAGS_WINDOW="-subsystem:windows"
	    LDFLAGS_DEBUG="-debug:full -debugtype:cv"
	    LDFLAGS_OPTIMIZE="-release"
	    EXTRA_CFLAGS="-YX"
	    PATHTYPE=-w
	    STLIB_LD="lib -nologo"
	    SHLIB_LD="link -dll -nologo"
	    SHLIB_LD_LIBS="user32.lib advapi32.lib"
	    RC="rc"
	    ;;
	dgux*)
	    SHLIB_CFLAGS="-K PIC"
	    SHLIB_LD="cc -G"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	HP-UX-*.08.*|HP-UX-*.09.*|HP-UX-*.10.*|HP-UX-*.11.*)
	    SHLIB_SUFFIX=".sl"
	    AC_CHECK_LIB(dld, shl_load, tcl_ok=yes, tcl_ok=no)
	    if test "$tcl_ok" = yes; then
		SHLIB_CFLAGS="+z"
		SHLIB_LD="ld -b"
		SHLIB_LD_LIBS=""
		DL_OBJS="tclLoadShl.o"
		DL_LIBS="-ldld"
		LDFLAGS="-Wl,-E"
		LD_SEARCH_FLAGS='-Wl,+s,+b,${LIB_RUNTIME_DIR}:.'
	    fi
	    ;;
	IRIX-4.*)
	    SHLIB_CFLAGS="-G 0"
	    SHLIB_SUFFIX=".a"
	    SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r -G 0"
	    SHLIB_LD_LIBS='${LIBS}'
	    DL_OBJS="tclLoadAout.o"
	    DL_LIBS=""
	    LDFLAGS="-Wl,-D,08000000"
	    LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
	    SHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}.a'
	    ;;
	IRIX-5.*|IRIX-6.*|IRIX64-6.5*)
	    SHLIB_CFLAGS=""
	    SHLIB_LD="ld -n32 -shared -rdata_shared"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
	    if test "$CC" = "gcc" -o `$CC -v 2>&1 | grep -c gcc` != "0" ; then
		EXTRA_CFLAGS="-mabi=n32"
		LDFLAGS="-mabi=n32"
	    else
		case $system in
		    IRIX-6.3)
			# Use to build 6.2 compatible binaries on 6.3.
			EXTRA_CFLAGS="-n32 -D_OLD_TERMIOS"
			;;
		    *)
			EXTRA_CFLAGS="-n32"
			;;
		esac
		LDFLAGS="-n32"
	    fi
	    ;;
	IRIX64-6.*)
	    SHLIB_CFLAGS=""
	    SHLIB_LD="ld -32 -shared -rdata_shared"
	    SHLIB_LD_LIBS='${LIBS}'
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    LDFLAGS=""
	    LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
	    ;;
	Linux*)
	    SHLIB_CFLAGS="-fPIC"
	    SHLIB_LD_LIBS='${LIBS}'
	    SHLIB_SUFFIX=".so"

	    # egcs-2.91.66 on Redhat Linux 6.0 generates lots of warnings 
	    # when you inline the string and math operations.  Turn this off to
	    # get rid of the warnings.

	    CFLAGS_OPTIMIZE="${CFLAGS_OPTIMIZE} -D__NO_STRING_INLINES -D__NO_MATH_INLINES"

	    if test "$have_dl" = yes; then
		SHLIB_LD="${CC} -shared"
		DL_OBJS="tclLoadDl.o"
		DL_LIBS="-ldl"
		LDFLAGS="-rdynamic"
		LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
	    else
		AC_CHECK_HEADER(dld.h, [
		    SHLIB_LD="ld -shared"
		    DL_OBJS="tclLoadDld.o"
		    DL_LIBS="-ldld"
		    LDFLAGS=""
		    LD_SEARCH_FLAGS=""])
	    fi
	    if test "`uname -m`" = "alpha" ; then
		EXTRA_CFLAGS="-mieee"
	    fi
	    ;;
	MP-RAS-02*)
	    SHLIB_CFLAGS="-K PIC"
	    SHLIB_LD="cc -G"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	MP-RAS-*)
	    SHLIB_CFLAGS="-K PIC"
	    SHLIB_LD="cc -G"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS="-Wl,-Bexport"
	    LD_SEARCH_FLAGS=""
	    ;;
	NetBSD-*|FreeBSD-[[12]].*|OpenBSD-*)
	    # Not available on all versions:  check for include file.
	    AC_CHECK_HEADER(dlfcn.h, [
		SHLIB_CFLAGS="-fpic"
		SHLIB_LD="ld -Bshareable -x"
		SHLIB_LD_LIBS=""
		SHLIB_SUFFIX=".so"
		DL_OBJS="tclLoadDl.o"
		DL_LIBS=""
		LDFLAGS=""
		LD_SEARCH_FLAGS=""
		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1.0'
	    ], [
		SHLIB_CFLAGS=""
		SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r"
		SHLIB_LD_LIBS='${LIBS}'
		SHLIB_SUFFIX=".a"
		DL_OBJS="tclLoadAout.o"
		DL_LIBS=""
		LDFLAGS=""
		LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
	    ])

	    # FreeBSD doesn't handle version numbers with dots.

	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
	    TCL_LIB_VERSIONS_OK=nodots
	    ;;
	FreeBSD-*)
	    # FreeBSD 3.* and greater have ELF.
	    SHLIB_CFLAGS="-fpic"
	    SHLIB_LD="ld -Bshareable -x"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    LDFLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	NEXTSTEP-*)
	    SHLIB_CFLAGS=""
	    SHLIB_LD="cc -nostdlib -r"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadNext.o"
	    DL_LIBS=""
	    LDFLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	OS/390-*)
	    CFLAGS_OPTIMIZE=""      # Optimizer is buggy
	    AC_DEFINE(_OE_SOCKETS)  # needed in sys/socket.h
	    ;;      
	OSF1-1.0|OSF1-1.1|OSF1-1.2)
	    # OSF/1 1.[012] from OSF, and derivatives, including Paragon OSF/1
	    SHLIB_CFLAGS=""
	    # Hack: make package name same as library name
	    SHLIB_LD='ld -R -export $@:'
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadOSF.o"
	    DL_LIBS=""
	    LDFLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	OSF1-1.*)
	    # OSF/1 1.3 from OSF using ELF, and derivatives, including AD2
	    SHLIB_CFLAGS="-fpic"
	    SHLIB_LD="ld -shared"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    LDFLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	OSF1-V*)
	    # Digital OSF/1
	    SHLIB_CFLAGS=""
	    SHLIB_LD='ld -shared -expect_unresolved "*"'
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    LDFLAGS=""
	    LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
	    ;;
	RISCos-*)
	    SHLIB_CFLAGS="-G 0"
	    SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r -G 0"
	    SHLIB_LD_LIBS='${LIBS}'
	    SHLIB_SUFFIX=".a"
	    DL_OBJS="tclLoadAout.o"
	    DL_LIBS=""
	    LDFLAGS="-Wl,-D,08000000"
	    LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
	    ;;
	SCO_SV-3.2*)
	    # Note, dlopen is available only on SCO 3.2.5 and greater.  However,
	    # this test works, since "uname -s" was non-standard in 3.2.4 and
	    # below.
	    SHLIB_CFLAGS="-Kpic -belf"
	    SHLIB_LD="ld -G"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    LDFLAGS="-belf -Wl,-Bexport"
	    LD_SEARCH_FLAGS=""
	    ;;
	SINIX*5.4*)
	    SHLIB_CFLAGS="-K PIC"
	    SHLIB_LD="cc -G"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	SunOS-4*)
	    SHLIB_CFLAGS="-PIC"
	    SHLIB_LD="ld"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS=""
	    LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'

	    # SunOS can't handle version numbers with dots in them in library
	    # specs, like -ltcl7.5, so use -ltcl75 instead.  Also, it
	    # requires an extra version number at the end of .so file names.
	    # So, the library has to have a name like libtcl75.so.1.0

	    SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1.0'
	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
	    TCL_LIB_VERSIONS_OK=nodots
	    ;;
	SunOS-5.[[0-6]]*)
	    SHLIB_CFLAGS="-KPIC"
	    SHLIB_LD="/usr/ccs/bin/ld -G -z text"

	    # Note: need the LIBS below, otherwise Tk won't find Tcl's
	    # symbols when dynamically loaded into tclsh.

	    SHLIB_LD_LIBS='${LIBS}'
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS=""
	    LD_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
	    ;;
	SunOS-5*)
	    SHLIB_CFLAGS="-KPIC"
	    SHLIB_LD="/usr/ccs/bin/ld -G -z text"
	    LDFLAGS=""
    
	    do64bit_ok=no
	    if test "$do64bit" = "yes" ; then
	    arch=`isainfo`
	    if test "$arch" = "sparcv9 sparc" ; then
		if test "$CC" != "gcc" -a `$CC -v 2>&1 | grep -c gcc` = "0" ; then
		do64bit_ok=yes
		EXTRA_CFLAGS="-xarch=v9"
		LDFLAGS="-xarch=v9"
		else 
		AC_MSG_WARN("64bit mode not supported using GCC on $system")
		fi
	    else
		AC_MSG_WARN("64bit mode only supported sparcv9 system")
	    fi
	    fi
	    
	    # Note: need the LIBS below, otherwise Tk won't find Tcl's
	    # symbols when dynamically loaded into tclsh.

	    SHLIB_LD_LIBS='${LIBS}'
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    if test "$CC" = "gcc" -o `$CC -v 2>&1 | grep -c gcc` != "0" ; then
		LD_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
	    else
		LD_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
	    fi
	    ;;
	ULTRIX-4.*)
	    SHLIB_CFLAGS="-G 0"
	    SHLIB_SUFFIX=".a"
	    SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r -G 0"
	    SHLIB_LD_LIBS='${LIBS}'
	    DL_OBJS="tclLoadAout.o"
	    DL_LIBS=""
	    LDFLAGS="-Wl,-D,08000000"
	    LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
	    ;;
	UNIX_SV* | UnixWare-5*)
	    SHLIB_CFLAGS="-KPIC"
	    SHLIB_LD="cc -G"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    # Some UNIX_SV* systems (unixware 1.1.2 for example) have linkers
	    # that don't grok the -Bexport option.  Test that it does.
	    hold_ldflags=$LDFLAGS
	    AC_MSG_CHECKING(for ld accepts -Bexport flag)
	    LDFLAGS="${LDFLAGS} -Wl,-Bexport"
	    AC_TRY_LINK(, [int i;], found=yes, found=no)
	    LDFLAGS=$hold_ldflags
	    AC_MSG_RESULT($found)
	    if test $found = yes; then
	    LDFLAGS="-Wl,-Bexport"
	    else
	    LDFLAGS=""
	    fi
	    LD_SEARCH_FLAGS=""
	    ;;
    esac

    if test "$do64bit" = "yes" -a "$do64bit_ok" = "no" ; then
    AC_MSG_WARN("64bit support being disabled -- not supported on this platform")
    fi

    # Step 4: If pseudo-static linking is in use (see K. B. Kenny, "Dynamic
    # Loading for Tcl -- What Became of It?".  Proc. 2nd Tcl/Tk Workshop,
    # New Orleans, LA, Computerized Processes Unlimited, 1994), then we need
    # to determine which of several header files defines the a.out file
    # format (a.out.h, sys/exec.h, or sys/exec_aout.h).  At present, we
    # support only a file format that is more or less version-7-compatible. 
    # In particular,
    #	- a.out files must begin with `struct exec'.
    #	- the N_TXTOFF on the `struct exec' must compute the seek address
    #	  of the text segment
    #	- The `struct exec' must contain a_magic, a_text, a_data, a_bss
    #	  and a_entry fields.
    # The following compilation should succeed if and only if either sys/exec.h
    # or a.out.h is usable for the purpose.
    #
    # Note that the modified COFF format used on MIPS Ultrix 4.x is usable; the
    # `struct exec' includes a second header that contains information that
    # duplicates the v7 fields that are needed.

    if test "x$DL_OBJS" = "xtclLoadAout.o" ; then
	AC_MSG_CHECKING(sys/exec.h)
	AC_TRY_COMPILE([#include <sys/exec.h>],[
	    struct exec foo;
	    unsigned long seek;
	    int flag;
#if defined(__mips) || defined(mips)
	    seek = N_TXTOFF (foo.ex_f, foo.ex_o);
#else
	    seek = N_TXTOFF (foo);
#endif
	    flag = (foo.a_magic == OMAGIC);
	    return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry;
    ], tcl_ok=usable, tcl_ok=unusable)
	AC_MSG_RESULT($tcl_ok)
	if test $tcl_ok = usable; then
	    AC_DEFINE(USE_SYS_EXEC_H)
	else
	    AC_MSG_CHECKING(a.out.h)
	    AC_TRY_COMPILE([#include <a.out.h>],[
		struct exec foo;
		unsigned long seek;
		int flag;
#if defined(__mips) || defined(mips)
		seek = N_TXTOFF (foo.ex_f, foo.ex_o);
#else
		seek = N_TXTOFF (foo);
#endif
		flag = (foo.a_magic == OMAGIC);
		return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry;
	    ], tcl_ok=usable, tcl_ok=unusable)
	    AC_MSG_RESULT($tcl_ok)
	    if test $tcl_ok = usable; then
		AC_DEFINE(USE_A_OUT_H)
	    else
		AC_MSG_CHECKING(sys/exec_aout.h)
		AC_TRY_COMPILE([#include <sys/exec_aout.h>],[
		    struct exec foo;
		    unsigned long seek;
		    int flag;
#if defined(__mips) || defined(mips)
		    seek = N_TXTOFF (foo.ex_f, foo.ex_o);
#else
		    seek = N_TXTOFF (foo);
#endif
		    flag = (foo.a_midmag == OMAGIC);
		    return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry;
		], tcl_ok=usable, tcl_ok=unusable)
		AC_MSG_RESULT($tcl_ok)
		if test $tcl_ok = usable; then
		    AC_DEFINE(USE_SYS_EXEC_AOUT_H)
		else
		    DL_OBJS=""
		fi
	    fi
	fi
    fi

    # Step 5: disable dynamic loading if requested via a command-line switch.

    AC_ARG_ENABLE(load, [  --disable-load          disallow dynamic loading and "load" command],
	[tcl_ok=$enableval], [tcl_ok=yes])
    if test "$tcl_ok" = "no"; then
	DL_OBJS=""
    fi

    if test "x$DL_OBJS" != "x" ; then
	BUILD_DLTEST="\$(DLTEST_TARGETS)"
    else
	echo "Can't figure out how to do dynamic loading or shared libraries"
	echo "on this system."
	SHLIB_CFLAGS=""
	SHLIB_LD=""
	SHLIB_SUFFIX=""
	DL_OBJS="tclLoadNone.o"
	DL_LIBS=""
	LDFLAGS=""
	LD_SEARCH_FLAGS=""
	BUILD_DLTEST=""
    fi

    # If we're running gcc, then change the C flags for compiling shared
    # libraries to the right flags for gcc, instead of those for the
    # standard manufacturer compiler.

    if test "$DL_OBJS" != "tclLoadNone.o" ; then
	if test "$CC" = "gcc" -o `$CC -v 2>&1 | grep -c gcc` != "0" ; then
	    case $system in
		AIX-*)
		    ;;
		BSD/OS*)
		    ;;
		IRIX*)
		    ;;
		NetBSD-*|FreeBSD-*|OpenBSD-*)
		    ;;
		RISCos-*)
		    ;;
		ULTRIX-4.*)
		    ;;
		*)
		    SHLIB_CFLAGS="-fPIC"
		    ;;
	    esac
	fi
    fi

    if test "$SHARED_LIB_SUFFIX" = "" ; then
	SHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}${SHLIB_SUFFIX}'
    fi
    if test "$UNSHARED_LIB_SUFFIX" = "" ; then
	UNSHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}.a'
    fi

    AC_SUBST(STLIB_LD)
    AC_SUBST(SHLIB_LD)
    AC_SUBST(SHLIB_CFLAGS)
    AC_SUBST(SHLIB_LDFLAGS)
    AC_SUBST(DL_LIBS)
    AC_SUBST(CFLAGS_DEBUG)
    AC_SUBST(CFLAGS_OPTIMIZE)
    AC_SUBST(LDFLAGS_DEBUG)
    AC_SUBST(LDFLAGS_OPTIMIZE)
])

#--------------------------------------------------------------------
# SC_SERIAL_PORT
#
#	Determine which interface to use to talk to the serial port.
#	Note that #include lines must begin in leftmost column for
#	some compilers to recognize them as preprocessor directives.
#
# Arguments:
#	none
#	
# Results:
#
#	Defines only one of the following vars:
#		USE_TERMIOS
#		USE_TERMIO
#		USE_SGTTY
#
#--------------------------------------------------------------------

AC_DEFUN(SC_SERIAL_PORT, [
    AC_MSG_CHECKING([termios vs. termio vs. sgtty])

    AC_TRY_RUN([
#include <termios.h>

main()
{
    struct termios t;
    if (tcgetattr(0, &t) == 0) {
	cfsetospeed(&t, 0);
	t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB;
	return 0;
    }
    return 1;
}], tk_ok=termios, tk_ok=no, tk_ok=no)

    if test $tk_ok = termios; then
	AC_DEFINE(USE_TERMIOS)
    else
	AC_TRY_RUN([
#include <termio.h>

main()
{
    struct termio t;
    if (ioctl(0, TCGETA, &t) == 0) {
	t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB;
	return 0;
    }
    return 1;
    }], tk_ok=termio, tk_ok=no, tk_ok=no)

    if test $tk_ok = termio; then
	AC_DEFINE(USE_TERMIO)
    else
	AC_TRY_RUN([
#include <sgtty.h>

main()
{
    struct sgttyb t;
    if (ioctl(0, TIOCGETP, &t) == 0) {
	t.sg_ospeed = 0;
	t.sg_flags |= ODDP | EVENP | RAW;
	return 0;
    }
    return 1;
}], tk_ok=sgtty, tk_ok=none, tk_ok=none)
    if test $tk_ok = sgtty; then
	AC_DEFINE(USE_SGTTY)
    fi
    fi
    fi
    AC_MSG_RESULT($tk_ok)
])

#--------------------------------------------------------------------
# SC_MISSING_POSIX_HEADERS
#
#	Supply substitutes for missing POSIX header files.  Special
#	notes:
#	    - stdlib.h doesn't define strtol, strtoul, or
#	      strtod insome versions of SunOS
#	    - some versions of string.h don't declare procedures such
#	      as strstr
#
# Arguments:
#	none
#	
# Results:
#
#	Defines some of the following vars:
#		NO_DIRENT_H
#		NO_ERRNO_H
#		NO_VALUES_H
#		NO_LIMITS_H
#		NO_STDLIB_H
#		NO_STRING_H
#		NO_SYS_WAIT_H
#		NO_DLFCN_H
#		HAVE_UNISTD_H
#		HAVE_SYS_PARAM_H
#
#		HAVE_STRING_H ?
#
#--------------------------------------------------------------------

AC_DEFUN(SC_MISSING_POSIX_HEADERS, [

    AC_MSG_CHECKING(dirent.h)
    AC_TRY_LINK([#include <sys/types.h>
#include <dirent.h>], [
#ifndef _POSIX_SOURCE
#   ifdef __Lynx__
	/*
	 * Generate compilation error to make the test fail:  Lynx headers
	 * are only valid if really in the POSIX environment.
	 */

	missing_procedure();
#   endif
#endif
DIR *d;
struct dirent *entryPtr;
char *p;
d = opendir("foobar");
entryPtr = readdir(d);
p = entryPtr->d_name;
closedir(d);
], tcl_ok=yes, tcl_ok=no)

    if test $tcl_ok = no; then
	AC_DEFINE(NO_DIRENT_H)
    fi

    AC_MSG_RESULT($tcl_ok)
    AC_CHECK_HEADER(errno.h, , AC_DEFINE(NO_ERRNO_H))
    AC_CHECK_HEADER(float.h, , AC_DEFINE(NO_FLOAT_H))
    AC_CHECK_HEADER(values.h, , AC_DEFINE(NO_VALUES_H))
    AC_CHECK_HEADER(limits.h, , AC_DEFINE(NO_LIMITS_H))
    AC_CHECK_HEADER(stdlib.h, tcl_ok=1, tcl_ok=0)
    AC_EGREP_HEADER(strtol, stdlib.h, , tcl_ok=0)
    AC_EGREP_HEADER(strtoul, stdlib.h, , tcl_ok=0)
    AC_EGREP_HEADER(strtod, stdlib.h, , tcl_ok=0)
    if test $tcl_ok = 0; then
	AC_DEFINE(NO_STDLIB_H)
    fi
    AC_CHECK_HEADER(string.h, tcl_ok=1, tcl_ok=0)
    AC_EGREP_HEADER(strstr, string.h, , tcl_ok=0)
    AC_EGREP_HEADER(strerror, string.h, , tcl_ok=0)

    # See also memmove check below for a place where NO_STRING_H can be
    # set and why.

    if test $tcl_ok = 0; then
	AC_DEFINE(NO_STRING_H)
    fi

    AC_CHECK_HEADER(sys/wait.h, , AC_DEFINE(NO_SYS_WAIT_H))
    AC_CHECK_HEADER(dlfcn.h, , AC_DEFINE(NO_DLFCN_H))

    # OS/390 lacks sys/param.h (and doesn't need it, by chance).

    AC_HAVE_HEADERS(unistd.h sys/param.h)

])

#--------------------------------------------------------------------
# SC_PATH_X
#
#	Locate the X11 header files and the X11 library archive.  Try
#	the ac_path_x macro first, but if it doesn't find the X stuff
#	(e.g. because there's no xmkmf program) then check through
#	a list of possible directories.  Under some conditions the
#	autoconf macro will return an include directory that contains
#	no include files, so double-check its result just to be safe.
#
# Arguments:
#	none
#	
# Results:
#
#	Sets the the following vars:
#		XINCLUDES
#		XLIBSW
#
#--------------------------------------------------------------------

AC_DEFUN(SC_PATH_X, [
    AC_PATH_X
    not_really_there=""
    if test "$no_x" = ""; then
	if test "$x_includes" = ""; then
	    AC_TRY_CPP([#include <X11/XIntrinsic.h>], , not_really_there="yes")
	else
	    if test ! -r $x_includes/X11/Intrinsic.h; then
		not_really_there="yes"
	    fi
	fi
    fi
    if test "$no_x" = "yes" -o "$not_really_there" = "yes"; then
	AC_MSG_CHECKING(for X11 header files)
	XINCLUDES="# no special path needed"
	AC_TRY_CPP([#include <X11/Intrinsic.h>], , XINCLUDES="nope")
	if test "$XINCLUDES" = nope; then
	    dirs="/usr/unsupported/include /usr/local/include /usr/X386/include /usr/X11R6/include /usr/X11R5/include /usr/include/X11R5 /usr/include/X11R4 /usr/openwin/include /usr/X11/include /usr/sww/include"
	    for i in $dirs ; do
		if test -r $i/X11/Intrinsic.h; then
		    AC_MSG_RESULT($i)
		    XINCLUDES=" -I$i"
		    break
		fi
	    done
	fi
    else
	if test "$x_includes" != ""; then
	    XINCLUDES=-I$x_includes
	else
	    XINCLUDES="# no special path needed"
	fi
    fi
    if test "$XINCLUDES" = nope; then
	AC_MSG_RESULT(couldn't find any!)
	XINCLUDES="# no include files found"
    fi

    if test "$no_x" = yes; then
	AC_MSG_CHECKING(for X11 libraries)
	XLIBSW=nope
	dirs="/usr/unsupported/lib /usr/local/lib /usr/X386/lib /usr/X11R6/lib /usr/X11R5/lib /usr/lib/X11R5 /usr/lib/X11R4 /usr/openwin/lib /usr/X11/lib /usr/sww/X11/lib"
	for i in $dirs ; do
	    if test -r $i/libX11.a -o -r $i/libX11.so -o -r $i/libX11.sl; then
		AC_MSG_RESULT($i)
		XLIBSW="-L$i -lX11"
		x_libraries="$i"
		break
	    fi
	done
    else
	if test "$x_libraries" = ""; then
	    XLIBSW=-lX11
	else
	    XLIBSW="-L$x_libraries -lX11"
	fi
    fi
    if test "$XLIBSW" = nope ; then
	AC_CHECK_LIB(Xwindow, XCreateWindow, XLIBSW=-lXwindow)
    fi
    if test "$XLIBSW" = nope ; then
	AC_MSG_RESULT(couldn't find any!  Using -lX11.)
	XLIBSW=-lX11
    fi
])
#--------------------------------------------------------------------
# SC_BLOCKING_STYLE
#
#	The statements below check for systems where POSIX-style
#	non-blocking I/O (O_NONBLOCK) doesn't work or is unimplemented. 
#	On these systems (mostly older ones), use the old BSD-style
#	FIONBIO approach instead.
#
# Arguments:
#	none
#	
# Results:
#
#	Defines some of the following vars:
#		HAVE_SYS_IOCTL_H
#		HAVE_SYS_FILIO_H
#		USE_FIONBIO
#		O_NONBLOCK
#
#--------------------------------------------------------------------

AC_DEFUN(SC_BLOCKING_STYLE, [
    AC_CHECK_HEADERS(sys/ioctl.h)
    AC_CHECK_HEADERS(sys/filio.h)
    AC_MSG_CHECKING([FIONBIO vs. O_NONBLOCK for nonblocking I/O])
    if test -f /usr/lib/NextStep/software_version; then
	system=NEXTSTEP-`awk '/3/,/3/' /usr/lib/NextStep/software_version`
    else
	system=`uname -s`-`uname -r`
	if test "$?" -ne 0 ; then
	    system=unknown
	else
	    # Special check for weird MP-RAS system (uname returns weird
	    # results, and the version is kept in special file).
	
	    if test -r /etc/.relid -a "X`uname -n`" = "X`uname -s`" ; then
		system=MP-RAS-`awk '{print $3}' /etc/.relid'`
	    fi
	    if test "`uname -s`" = "AIX" ; then
		system=AIX-`uname -v`.`uname -r`
	    fi
	fi
    fi
    case $system in
	# There used to be code here to use FIONBIO under AIX.  However, it
	# was reported that FIONBIO doesn't work under AIX 3.2.5.  Since
	# using O_NONBLOCK seems fine under AIX 4.*, I removed the FIONBIO
	# code (JO, 5/31/97).

	OSF*)
	    AC_DEFINE(USE_FIONBIO)
	    AC_MSG_RESULT(FIONBIO)
	    ;;
	SunOS-4*)
	    AC_DEFINE(USE_FIONBIO)
	    AC_MSG_RESULT(FIONBIO)
	    ;;
	ULTRIX-4.*)
	    AC_DEFINE(USE_FIONBIO)
	    AC_MSG_RESULT(FIONBIO)
	    ;;
	*)
	    AC_MSG_RESULT(O_NONBLOCK)
	    ;;
    esac
])

#--------------------------------------------------------------------
# SC_HAVE_VFORK
#
#	Check to see whether the system provides a vfork kernel call.
#	If not, then use fork instead.  Also, check for a problem with
#	vforks and signals that can cause core dumps if a vforked child
#	resets a signal handler.  If the problem exists, then use fork
#	instead of vfork.
#
# Arguments:
#	none
#	
# Results:
#
#	Defines some of the following vars:
#		vfork (=fork)
#
#--------------------------------------------------------------------

AC_DEFUN(SC_HAVE_VFORK, [
    AC_TYPE_SIGNAL()
    AC_CHECK_FUNC(vfork, tcl_ok=1, tcl_ok=0)
    if test "$tcl_ok" = 1; then
	AC_MSG_CHECKING([vfork/signal bug]);
	AC_TRY_RUN([
#include <stdio.h>
#include <signal.h>
#include <sys/wait.h>
int gotSignal = 0;
sigProc(sig)
    int sig;
{
    gotSignal = 1;
}
main()
{
    int pid, sts;
    (void) signal(SIGCHLD, sigProc);
    pid = vfork();
    if (pid <  0) {
	exit(1);
    } else if (pid == 0) {
	(void) signal(SIGCHLD, SIG_DFL);
	_exit(0);
    } else {
	(void) wait(&sts);
    }
    exit((gotSignal) ? 0 : 1);
}], tcl_ok=1, tcl_ok=0, tcl_ok=0)

	if test "$tcl_ok" = 1; then
	    AC_MSG_RESULT(ok)
	else
	    AC_MSG_RESULT([buggy, using fork instead])
	fi
    fi
    rm -f core
    if test "$tcl_ok" = 0; then
	AC_DEFINE(vfork, fork)
    fi
])

#--------------------------------------------------------------------
# SC_TIME_HANLDER
#
#	Checks how the system deals with time.h, what time structures
#	are used on the system, and what fields the structures have.
#
# Arguments:
#	none
#	
# Results:
#
#	Defines some of the following vars:
#		USE_DELTA_FOR_TZ
#		HAVE_TM_GMTOFF
#		HAVE_TM_TZADJ
#		HAVE_TIMEZONE_VAR
#
#--------------------------------------------------------------------

AC_DEFUN(SC_TIME_HANDLER, [
    AC_CHECK_HEADERS(sys/time.h)
    AC_HEADER_TIME
    AC_STRUCT_TIMEZONE

    AC_MSG_CHECKING([tm_tzadj in struct tm])
    AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_tzadj;],
	    [AC_DEFINE(HAVE_TM_TZADJ)
	    AC_MSG_RESULT(yes)],
	    AC_MSG_RESULT(no))

    AC_MSG_CHECKING([tm_gmtoff in struct tm])
    AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_gmtoff;],
	    [AC_DEFINE(HAVE_TM_GMTOFF)
	    AC_MSG_RESULT(yes)],
	    AC_MSG_RESULT(no))

    #
    # Its important to include time.h in this check, as some systems
    # (like convex) have timezone functions, etc.
    #
    have_timezone=no
    AC_MSG_CHECKING([long timezone variable])
    AC_TRY_COMPILE([#include <time.h>],
	    [extern long timezone;
	    timezone += 1;
	    exit (0);],
	    [have_timezone=yes
	    AC_DEFINE(HAVE_TIMEZONE_VAR)
	    AC_MSG_RESULT(yes)],
	    AC_MSG_RESULT(no))

    #
    # On some systems (eg IRIX 6.2), timezone is a time_t and not a long.
    #
    if test "$have_timezone" = no; then
    AC_MSG_CHECKING([time_t timezone variable])
    AC_TRY_COMPILE([#include <time.h>],
	    [extern time_t timezone;
	    timezone += 1;
	    exit (0);],
	    [AC_DEFINE(HAVE_TIMEZONE_VAR)
	    AC_MSG_RESULT(yes)],
	    AC_MSG_RESULT(no))
    fi

    #
    # AIX does not have a timezone field in struct tm. When the AIX bsd
    # library is used, the timezone global and the gettimeofday methods are
    # to be avoided for timezone deduction instead, we deduce the timezone
    # by comparing the localtime result on a known GMT value.
    #

    if test "`uname -s`" = "AIX" ; then
	AC_CHECK_LIB(bsd, gettimeofday, libbsd=yes)
	if test $libbsd = yes; then
	    AC_DEFINE(USE_DELTA_FOR_TZ)
	fi
    fi
])

#--------------------------------------------------------------------
# SC_BUGGY_STRTOD
#
#	Under Solaris 2.4, strtod returns the wrong value for the
#	terminating character under some conditions.  Check for this
#	and if the problem exists use a substitute procedure
#	"fixstrtod" (provided by Tcl) that corrects the error.
#
# Arguments:
#	none
#	
# Results:
#
#	Might defines some of the following vars:
#		strtod (=fixstrtod)
#
#--------------------------------------------------------------------

AC_DEFUN(SC_BUGGY_STRTOD, [
    AC_CHECK_FUNC(strtod, tk_strtod=1, tk_strtod=0)
    if test "$tk_strtod" = 1; then
	AC_MSG_CHECKING([for Solaris 2.4 strtod bug])
	AC_TRY_RUN([
	    extern double strtod();
	    int main()
	    {
		char *string = "NaN";
		char *term;
		strtod(string, &term);
		if ((term != string) && (term[-1] == 0)) {
		    exit(1);
		}
		exit(0);
	    }], tk_ok=1, tk_ok=0, tk_ok=0)
	if test "$tk_ok" = 1; then
	    AC_MSG_RESULT(ok)
	else
	    AC_MSG_RESULT(buggy)
	    AC_DEFINE(strtod, fixstrtod)
	fi
    fi
])

#--------------------------------------------------------------------
# SC_TCL_LINK_LIBS
#
#	Search for the libraries needed to link the Tcl shell.
#	Things like the math library (-lm) and socket stuff (-lsocket vs.
#	-lnsl) are dealt with here.
#
# Arguments:
#	Requires the following vars to be set in the Makefile:
#		DL_LIBS
#		LIBS
#		MATH_LIBS
#	
# Results:
#
#	Subst's the following var:
#		TCL_LIBS
#		MATH_LIBS
#
#	Might append to the following vars:
#		LIBS
#
#	Might define the following vars:
#		HAVE_NET_ERRNO_H
#
#--------------------------------------------------------------------

AC_DEFUN(SC_TCL_LINK_LIBS, [
    #--------------------------------------------------------------------
    # On a few very rare systems, all of the libm.a stuff is
    # already in libc.a.  Set compiler flags accordingly.
    # Also, Linux requires the "ieee" library for math to work
    # right (and it must appear before "-lm").
    #--------------------------------------------------------------------

    AC_CHECK_FUNC(sin, MATH_LIBS="", MATH_LIBS="-lm")
    AC_CHECK_LIB(ieee, main, [MATH_LIBS="-lieee $MATH_LIBS"])

    #--------------------------------------------------------------------
    # On AIX systems, libbsd.a has to be linked in to support
    # non-blocking file IO.  This library has to be linked in after
    # the MATH_LIBS or it breaks the pow() function.  The way to
    # insure proper sequencing, is to add it to the tail of MATH_LIBS.
    # This library also supplies gettimeofday.
    #--------------------------------------------------------------------

    libbsd=no
    if test "`uname -s`" = "AIX" ; then
	AC_CHECK_LIB(bsd, gettimeofday, libbsd=yes)
	if test $libbsd = yes; then
	    MATH_LIBS="$MATH_LIBS -lbsd"
	fi
    fi


    #--------------------------------------------------------------------
    # Interactive UNIX requires -linet instead of -lsocket, plus it
    # needs net/errno.h to define the socket-related error codes.
    #--------------------------------------------------------------------

    AC_CHECK_LIB(inet, main, [LIBS="$LIBS -linet"])
    AC_CHECK_HEADER(net/errno.h, AC_DEFINE(HAVE_NET_ERRNO_H))

    #--------------------------------------------------------------------
    #	Check for the existence of the -lsocket and -lnsl libraries.
    #	The order here is important, so that they end up in the right
    #	order in the command line generated by make.  Here are some
    #	special considerations:
    #	1. Use "connect" and "accept" to check for -lsocket, and
    #	   "gethostbyname" to check for -lnsl.
    #	2. Use each function name only once:  can't redo a check because
    #	   autoconf caches the results of the last check and won't redo it.
    #	3. Use -lnsl and -lsocket only if they supply procedures that
    #	   aren't already present in the normal libraries.  This is because
    #	   IRIX 5.2 has libraries, but they aren't needed and they're
    #	   bogus:  they goof up name resolution if used.
    #	4. On some SVR4 systems, can't use -lsocket without -lnsl too.
    #	   To get around this problem, check for both libraries together
    #	   if -lsocket doesn't work by itself.
    #--------------------------------------------------------------------

    tcl_checkBoth=0
    AC_CHECK_FUNC(connect, tcl_checkSocket=0, tcl_checkSocket=1)
    if test "$tcl_checkSocket" = 1; then
	AC_CHECK_LIB(socket, main, LIBS="$LIBS -lsocket", tcl_checkBoth=1)
    fi
    if test "$tcl_checkBoth" = 1; then
	tk_oldLibs=$LIBS
	LIBS="$LIBS -lsocket -lnsl"
	AC_CHECK_FUNC(accept, tcl_checkNsl=0, [LIBS=$tk_oldLibs])
    fi
    AC_CHECK_FUNC(gethostbyname, , AC_CHECK_LIB(nsl, main,
	    [LIBS="$LIBS -lnsl"]))
    
    # Don't perform the eval of the libraries here because DL_LIBS
    # won't be set until we call SC_CONFIG_CFLAGS

    TCL_LIBS='${DL_LIBS} ${LIBS} ${MATH_LIBS}'
    AC_SUBST(TCL_LIBS)
    AC_SUBST(MATH_LIBS)
])

#------------------------------------------------------------------------
# SC_MAKE_LIB --
#
#	Generate a line that can be used to build a shared/unshared library
#	in a platform independent manner.
#
# Arguments:
#	none
#
#	Requires:
#
# Results:
#
#	Defines the following vars:
#		MAKE_LIB	Makefile rule for building a library
#		MAKE_SHARED_LIB	Makefile rule for building a shared library
#		MAKE_UNSHARED_LIB	Makefile rule for building a static
#				library
#------------------------------------------------------------------------

AC_DEFUN(SC_MAKE_LIB, [
    case "`uname -s`" in
	*win32* | *WIN32* | *CYGWIN_NT*)
	    if test "${CC-cc}" = "cl"; then
		MAKE_STATIC_LIB="\${STLIB_LD} -out:\[$]@ \$(\[$]@_OBJECTS) "
		MAKE_SHARED_LIB="\${SHLIB_LD} \${SHLIB_LDFLAGS} \${SHLIB_LD_LIBS} \$(LDFLAGS) -out:\[$]@ \$(\[$]@_OBJECTS) "
	    fi
	    ;;
	*)
	    MAKE_STATIC_LIB="\${STLIB_LD} \[$]@ \$(\[$]@_OBJECTS)"
	    MAKE_SHARED_LIB="\${SHLIB_LD} -o \[$]@ \$(\[$]@_OBJECTS) \${SHLIB_LDFLAGS} \${SHLIB_LD_LIBS}"
	    ;;
    esac

    if test "${SHARED_BUILD}" = "1" ; then
	MAKE_LIB=${MAKE_SHARED_LIB}
    else
	MAKE_LIB=${MAKE_STATIC_LIB}
    fi

    AC_SUBST(MAKE_LIB)
    AC_SUBST(MAKE_SHARED_LIB)
    AC_SUBST(MAKE_STATIC_LIB)
])

#------------------------------------------------------------------------
# SC_LIB_SPEC --
#
#	Compute the name of an existing object library located in libdir
#	from the given base name and produce the appropriate linker flags.
#
# Arguments:
#	basename	The base name of the library without version
#			numbers, extensions, or "lib" prefixes.
#	extra_dir	Extra directory in which to search for the
#			library.  This location is used first, then
#			$prefix/$exec-prefix, then some defaults.
#
# Requires:
#	CYGPATH		command used to generate native style paths
#
# Results:
#
#	Defines the following vars:
#		${basename}_LIB_NAME	The computed library name.
#		${basename}_LIB_SPEC	The computed linker flags.
#------------------------------------------------------------------------

AC_DEFUN(SC_LIB_SPEC, [
    AC_MSG_CHECKING(for $1 library)

    # Look in exec-prefix and prefix for the library.  If neither of
    # these were specified, look in libdir.  It doesn't matter if libdir
    # wasn't specified since a search in the unspecified directory will
    # fail (NONE/lib)

    if test x"${exec_prefix}" != x"NONE" ; then
	sc_lib_name_dir="${exec_prefix}/lib"
    elif test x"${prefix}" != "NONE" ; then
	sc_lib_name_dir="${prefix}/lib"
    else
	eval "sc_lib_name_dir=${libdir}"
    fi

    if test x"$2" != x ; then
	sc_extra_lib_dir=$2
    else
	sc_extra_lib_dir=NONE
    fi

    for i in \
	    `ls -dr ${sc_extra_lib_dir}/$1[[0-9]]*.lib 2>/dev/null ` \
	    `ls -dr ${sc_extra_lib_dir}/lib$1[[0-9]]* 2>/dev/null ` \
	    `ls -dr ${sc_lib_name_dir}/$1[[0-9]]*.lib 2>/dev/null ` \
	    `ls -dr ${sc_lib_name_dir}/lib$1[[0-9]]* 2>/dev/null ` \
	    `ls -dr /usr/lib/$1[[0-9]]*.lib 2>/dev/null ` \
	    `ls -dr /usr/lib/lib$1[[0-9]]* 2>/dev/null ` \
	    `ls -dr /usr/local/lib/$1[[0-9]]*.lib 2>/dev/null ` \
	    `ls -dr /usr/local/lib/lib$1[[0-9]]* 2>/dev/null ` ; do
	if test -f "$i" ; then

	    sc_lib_name_dir=`dirname $i`
	    $1_LIB_NAME=`basename $i`
	    $1_LIB_PATH_NAME=$i
	    break
	fi
    done

    case "`uname -s`" in
	*win32* | *WIN32* | *CYGWIN_NT*)
	    $1_LIB_SPEC=\"`${CYGPATH} ${$1_LIB_PATH_NAME}`\"
	    ;;
	*)
	    # Strip off the leading "lib" and trailing ".a" or ".so"

	    sc_lib_name_lib=`echo ${$1_LIB_NAME}|sed -e 's/^lib//' -e 's/\.[[^.]]*$//'`
	    $1_LIB_SPEC="-L${sc_lib_name_dir} -l${sc_lib_name_lib}"
	    ;;
    esac
    if test "x$1_LIB_NAME" = x ; then
	AC_MSG_ERROR(not found)
    else
	AC_MSG_RESULT(${$1_LIB_SPEC})
    fi
    AC_SUBST($1_LIB_SPEC)
    AC_SUBST($1_LIB_NAME)
])

#------------------------------------------------------------------------
# SC_PRIVATE_TCL_HEADERS --
#
#	Locate the private Tcl include files
#
# Arguments:
#
#	Requires:
#		TCL_SRC_DIR	Assumes that SC_LOAD_TCLCONFIG has
#				 already been called.
#
# Results:
#
#	Substs the following vars:
#		TCL_TOP_DIR_NATIVE
#		TCL_GENERIC_DIR_NATIVE
#		TCL_UNIX_DIR_NATIVE
#		TCL_WIN_DIR_NATIVE
#		TCL_BMAP_DIR_NATIVE
#		TCL_TOOL_DIR_NATIVE
#		TCL_PLATFORM_DIR_NATIVE
#		TCL_BIN_DIR_NATIVE
#		TCL_INCLUDES
#------------------------------------------------------------------------

AC_DEFUN(SC_PRIVATE_TCL_HEADERS, [
    AC_MSG_CHECKING(for Tcl private include files)

    case "`uname -s`" in
	*win32* | *WIN32* | *CYGWIN_NT*)
	    TCL_TOP_DIR_NATIVE=\"`${CYGPATH} ${TCL_SRC_DIR}/..`\"
	    TCL_GENERIC_DIR_NATIVE=\"`${CYGPATH} ${TCL_SRC_DIR}/../generic`\"
	    TCL_UNIX_DIR_NATIVE=\"`${CYGPATH} ${TCL_SRC_DIR}/../unix`\"
	    TCL_WIN_DIR_NATIVE=\"`${CYGPATH} ${TCL_SRC_DIR}/../win`\"
	    TCL_BMAP_DIR_NATIVE=\"`${CYGPATH} ${TCL_SRC_DIR}/../bitmaps`\"
	    TCL_TOOL_DIR_NATIVE=\"`${CYGPATH} ${TCL_SRC_DIR}/../tools`\"
	    TCL_COMPAT_DIR_NATIVE=\"`${CYGPATH} ${TCL_SRC_DIR}/../compat`\"
	    TCL_PLATFORM_DIR_NATIVE=${TCL_WIN_DIR_NATIVE}
	;;
	*)
	    TCL_TOP_DIR_NATIVE='$(TCL_SRC_DIR)'
	    TCL_GENERIC_DIR_NATIVE='$(TCL_TOP_DIR_NATIVE)/generic'
	    TCL_UNIX_DIR_NATIVE='$(TCL_TOP_DIR_NATIVE)/unix'
	    TCL_WIN_DIR_NATIVE='$(TCL_TOP_DIR_NATIVE)/win'
	    TCL_BMAP_DIR_NATIVE='$(TCL_TOP_DIR_NATIVE)/bitmaps'
	    TCL_TOOL_DIR_NATIVE='$(TCL_TOP_DIR_NATIVE)/tools'
	    TCL_COMPAT_DIR_NATIVE='$(TCL_TOP_DIR_NATIVE)/compat'
	    TCL_PLATFORM_DIR_NATIVE=${TCL_UNIX_DIR_NATIVE}
	;;
    esac

    AC_SUBST(TCL_TOP_DIR_NATIVE)
    AC_SUBST(TCL_GENERIC_DIR_NATIVE)
    AC_SUBST(TCL_UNIX_DIR_NATIVE)
    AC_SUBST(TCL_WIN_DIR_NATIVE)
    AC_SUBST(TCL_BMAP_DIR_NATIVE)
    AC_SUBST(TCL_TOOL_DIR_NATIVE)
    AC_SUBST(TCL_PLATFORM_DIR_NATIVE)

    TCL_INCLUDES="-I${TCL_GENERIC_DIR_NATIVE} -I${TCL_PLATFORM_DIR_NATIVE}"
    AC_SUBST(TCL_INCLUDES)
    AC_MSG_RESULT(Using srcdir found in tclConfig.sh)
])

#------------------------------------------------------------------------
# SC_PUBLIC_TCL_HEADERS --
#
#	Locate the installed public Tcl header files
#
# Arguments:
#	None.
#
# Requires:
#	CYGPATH must be set
#
# Results:
#
#	Adds a --with-tclinclude switch to configure.
#	Result is cached.
#
#	Substs the following vars:
#		TCL_INCLUDES
#------------------------------------------------------------------------

AC_DEFUN(SC_PUBLIC_TCL_HEADERS, [
    AC_MSG_CHECKING(for Tcl public headers)

    AC_ARG_WITH(tclinclude, [ --with-tclinclude      directory containing the public Tcl header files.], with_tclinclude=${withval})

    if test x"${with_tclinclude}" != x ; then
	if test -f "${with_tclinclude}/tcl.h" ; then
	    ac_cv_c_tclh=${with_tclinclude}
	else
	    AC_MSG_ERROR([${with_tclinclude} directory does not contain Tcl public header file tcl.h])
	fi
    else
	AC_CACHE_VAL(ac_cv_c_tclh, [
	    # Use the value from --with-tclinclude, if it was given

	    if test x"${with_tclinclude}" != x ; then
		ac_cv_c_tclh=${with_tclinclude}
	    else
		# Check in the includedir, if --prefix was specified

		eval "temp_includedir=${includedir}"
		for i in \
			`ls -d ${temp_includedir} 2>/dev/null` \
			/usr/local/include /usr/include ; do
		    if test -f "$i/tcl.h" ; then
			ac_cv_c_tclh=$i
			break
		    fi
		done
	    fi
	])
    fi

    # Print a message based on how we determined the include path

    if test x"${ac_cv_c_tclh}" = x ; then
	AC_MSG_ERROR(tcl.h not found.  Please specify its location with --with-tclinclude)
    else
	AC_MSG_RESULT(${ac_cv_c_tclh})
    fi

    # Convert to a native path and substitute into the output files.

    INCLUDE_DIR_NATIVE=`${CYGPATH} ${ac_cv_c_tclh}`

    TCL_INCLUDES=-I\"${INCLUDE_DIR_NATIVE}\"

    AC_SUBST(TCL_INCLUDES)
])

#------------------------------------------------------------------------
# SC_PRIVATE_TK_HEADERS --
#
#	Locate the private Tk include files
#
# Arguments:
#
#	Requires:
#		TK_SRC_DIR	Assumes that SC_LOAD_TKCONFIG has
#				 already been called.
#
# Results:
#
#	Substs the following vars:
#		TK_INCLUDES
#------------------------------------------------------------------------

AC_DEFUN(SC_PRIVATE_TK_HEADERS, [
    AC_MSG_CHECKING(for Tk private include files)

    case "`uname -s`" in
	*win32* | *WIN32* | *CYGWIN_NT*)
	    TK_UNIX_DIR_NATIVE=\"`${CYGPATH} ${TK_SRC_DIR}/../unix`\"
	    TK_WIN_DIR_NATIVE=\"`${CYGPATH} ${TK_SRC_DIR}/../win`\"
	    TK_GENERIC_DIR_NATIVE=\"`${CYGPATH} ${TK_SRC_DIR}/../generic`\"
	    TK_XLIB_DIR_NATIVE=\"`${CYGPATH} ${TK_SRC_DIR}/../xlib`\"
	    TK_PLATFORM_DIR_NATIVE=${TK_WIN_DIR_NATIVE}

	    TK_INCLUDES="-I${TK_GENERIC_DIR_NATIVE} -I${TK_PLATFORM_DIR_NATIVE} -I${TK_XLIB_DIR_NATIVE}"
	;;
	*)
	    TK_GENERIC_DIR_NATIVE='$(TK_TOP_DIR_NATIVE)/generic'
	    TK_UNIX_DIR_NATIVE='$(TK_TOP_DIR_NATIVE)/unix'
	    TK_WIN_DIR_NATIVE='$(TK_TOP_DIR_NATIVE)/win'
	    TK_PLATFORM_DIR_NATIVE=${TK_UNIX_DIR_NATIVE}

	    TK_INCLUDES="-I${TK_GENERIC_DIR_NATIVE} -I${TK_PLATFORM_DIR_NATIVE}"
	;;
    esac

    AC_SUBST(TK_UNIX_DIR_NATIVE)
    AC_SUBST(TK_WIN_DIR_NATIVE)
    AC_SUBST(TK_GENERIC_DIR_NATIVE)
    AC_SUBST(TK_XLIB_DIR_NATIVE)
    AC_SUBST(TK_PLATFORM_DIR_NATIVE)

    AC_SUBST(TK_INCLUDES)
    AC_MSG_RESULT(Using srcdir found in tkConfig.sh)
])

#------------------------------------------------------------------------
# SC_PUBLIC_TK_HEADERS --
#
#	Locate the installed public Tk header files
#
# Arguments:
#	None.
#
# Requires:
#	CYGPATH must be set
#
# Results:
#
#	Adds a --with-tkinclude switch to configure.
#	Result is cached.
#
#	Substs the following vars:
#		TK_INCLUDES
#------------------------------------------------------------------------

AC_DEFUN(SC_PUBLIC_TK_HEADERS, [
    AC_MSG_CHECKING(for Tk public headers)

    AC_ARG_WITH(tkinclude, [ --with-tkinclude      directory containing the public Tk header files.], with_tkinclude=${withval})

    if test x"${with_tkinclude}" != x ; then
	if test -f "${with_tkinclude}/tk.h" ; then
	    ac_cv_c_tkh=${with_tkinclude}
	else
	    AC_MSG_ERROR([${with_tkinclude} directory does not contain Tk public header file tk.h])
	fi
    else
	AC_CACHE_VAL(ac_cv_c_tkh, [
	    # Use the value from --with-tkinclude, if it was given

	    if test x"${with_tkinclude}" != x ; then
		ac_cv_c_tkh=${with_tkinclude}
	    else
		# Check in the includedir, if --prefix was specified

		eval "temp_includedir=${includedir}"
		for i in \
			`ls -d ${temp_includedir} 2>/dev/null` \
			/usr/local/include /usr/include ; do
		    if test -f "$i/tk.h" ; then
			ac_cv_c_tkh=$i
			break
		    fi
		done
	    fi
	])
    fi

    # Print a message based on how we determined the include path

    if test x"${ac_cv_c_tkh}" = x ; then
	AC_MSG_ERROR(tk.h not found.  Please specify its location with --with-tkinclude)
    else
	AC_MSG_RESULT(${ac_cv_c_tkh})
    fi

    # Convert to a native path and substitute into the output files.

    INCLUDE_DIR_NATIVE=`${CYGPATH} ${ac_cv_c_tkh}`

    TK_INCLUDES=-I\"${INCLUDE_DIR_NATIVE}\"

    AC_SUBST(TK_INCLUDES)
])

#------------------------------------------------------------------------
# SC_SIMPLE_EXEEXT
#	Select the executable extension based on the host type.  This
#	is a lightweight replacement for AC_EXEEXT that doesn't require
#	a compiler.
#
# Arguments
#	none
#
# Results
#	Subst's the following values:
#		EXEEXT
#------------------------------------------------------------------------

AC_DEFUN(SC_SIMPLE_EXEEXT, [
    AC_MSG_CHECKING(executable extension based on host type)

    case "`uname -s`" in
	*win32* | *WIN32* | *CYGWIN_NT*)
	    EXEEXT=".exe"
	;;
	*)
	    EXEEXT=""
	;;
    esac

    AC_MSG_RESULT(${EXEEXT})
    AC_SUBST(EXEEXT)
])

#------------------------------------------------------------------------
# SC_PROG_TCLSH
#	Locate a tclsh shell in the following directories:
#		${exec_prefix}/bin
#		${prefix}/bin
#		${TCL_BIN_DIR}
#		${TCL_BIN_DIR}/../bin
#		${PATH}
#
# Arguments
#	none
#
# Results
#	Subst's the following values:
#		TCLSH_PROG
#------------------------------------------------------------------------

AC_DEFUN(SC_PROG_TCLSH, [
    AC_MSG_CHECKING([for tclsh])

    AC_CACHE_VAL(ac_cv_path_tclsh, [
	search_path=`echo ${exec_prefix}/bin:${prefix}/bin:${TCL_BIN_DIR}:${TCL_BIN_DIR}/../bin:${PATH} | sed -e 's/:/ /g'`
	for dir in $search_path ; do
	    for j in `ls -r $dir/tclsh[[8-9]]* 2> /dev/null` \
		    `ls -r $dir/tclsh* 2> /dev/null` ; do
		if test x"$ac_cv_path_tclsh" = x ; then
		    if test -f "$j" ; then
			ac_cv_path_tclsh=$j
			break
		    fi
		fi
	    done
	done
    ])

    if test -f "$ac_cv_path_tclsh" ; then
	TCLSH_PROG=$ac_cv_path_tclsh
	AC_MSG_RESULT($TCLSH_PROG)
    else
	AC_MSG_ERROR(No tclsh found in PATH:  $search_path)
    fi
    AC_SUBST(TCLSH_PROG)
])

#------------------------------------------------------------------------
# SC_PROG_WISH
#	Locate a wish shell in the following directories:
#		${exec_prefix}/bin
#		${prefix}/bin
#		${TCL_BIN_DIR}
#		${TCL_BIN_DIR}/../bin
#		${PATH}
#
# Arguments
#	none
#
# Results
#	Subst's the following values:
#		WISH_PROG
#------------------------------------------------------------------------

AC_DEFUN(SC_PROG_WISH, [
    AC_MSG_CHECKING([for wish])

    AC_CACHE_VAL(ac_cv_path_wish, [
	search_path=`echo ${exec_prefix}/bin:${prefix}/bin:${TCL_BIN_DIR}:${TCL_BIN_DIR}/../bin:${PATH} | sed -e 's/:/ /g'`
	for dir in $search_path ; do
	    for j in `ls -r $dir/wish[[8-9]]* 2> /dev/null` \
		    `ls -r $dir/wish* 2> /dev/null` ; do
		if test x"$ac_cv_path_wish" = x ; then
		    if test -f "$j" ; then
			ac_cv_path_wish=$j
			break
		    fi
		fi
	    done
	done
    ])

    if test -f "$ac_cv_path_wish" ; then
	WISH_PROG=$ac_cv_path_wish
	AC_MSG_RESULT($WISH_PROG)
    else
	AC_MSG_ERROR(No wish found in PATH:  $search_path)
    fi
    AC_SUBST(WISH_PROG)
])









Added tclOpts.h version [77f10543c7].



























































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/*
 *  Copyright (C) 1997-1999 Matt Newman <[email protected]>
 *
 *  $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tclOpts.h,v 1.1.1.1 2000/01/19 22:10:58 aborr Exp $
 *
 * Stylized option processing - requires consitent
 * external vars: opt, idx, objc, objv
 */
#ifndef _TCL_OPTS_H
#define _TCL_OPTS_H

#define OPT_PROLOG(option)			\
    if (strcmp(opt, (option)) == 0) {		\
	if (++idx >= objc) {			\
	    Tcl_AppendResult(interp,		\
		"no argument given for ",	\
		(option), " option",		\
		(char *) NULL);			\
	    return TCL_ERROR;			\
	}
#define OPT_POSTLOG()				\
	continue;				\
    }
#define OPTOBJ(option, var)			\
    OPT_PROLOG(option)				\
    var = objv[idx];				\
    OPT_POSTLOG()

#define OPTSTR(option, var)			\
    OPT_PROLOG(option)				\
    var = Tcl_GetStringFromObj(objv[idx], NULL);\
    OPT_POSTLOG()

#define OPTINT(option, var)			\
    OPT_PROLOG(option)				\
    if (Tcl_GetIntFromObj(interp, objv[idx],	\
	    &(var)) != TCL_OK) {		\
	    return TCL_ERROR;			\
    }						\
    OPT_POSTLOG()

#define OPTBOOL(option, var)			\
    OPT_PROLOG(option)				\
    if (Tcl_GetBooleanFromObj(interp, objv[idx],\
	    &(var)) != TCL_OK) {		\
	    return TCL_ERROR;			\
    }						\
    OPT_POSTLOG()

#define OPTBAD(type, list)			\
    Tcl_AppendResult(interp, "bad ", (type),	\
		" \"", opt, "\": must be ",	\
		(list), (char *) NULL)

#endif /* _TCL_OPTS_H */








Added tests/client.pem version [79c7dcaa3d].




























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issuer= /C=AU/ST=Queensland/O=CryptSoft Pty Ltd/CN=Test CA (1024 bit)
subject=/C=AU/ST=Queensland/O=CryptSoft Pty Ltd/CN=Client test cert (512 bit)
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
-----BEGIN RSA PRIVATE KEY-----
MIIBOwIBAAJBALtv55QyzG6i2PlwZ1pah7++Gv8L5j6Hnyr/uTZE1NLG0ABDDexm
q/R4KedLjFEIYjocDui+IXs62NNtXrT8odkCAwEAAQJAbwXq0vJ/+uyEvsNgxLko
/V86mGXQ/KrSkeKlL0r4ENxjcyeMAGoKu6J9yMY7+X9+Zm4nxShNfTsf/+Freoe1
HQIhAPOSm5Q1YI+KIsII2GeVJx1U69+wnd71OasIPakS1L1XAiEAxQAW+J3/JWE0
ftEYakbhUOKL8tD1OaFZS71/5GdG7E8CIQCefUMmySSvwd6kC0VlATSWbW+d+jp/
nWmM1KvqnAo5uQIhALqEADu5U1Wvt8UN8UDGBRPQulHWNycuNV45d3nnskWPAiAw
ueTyr6WsZ5+SD8g/Hy3xuvF3nPmJRH+rwvVihlcFOg==
-----END RSA PRIVATE KEY-----








Added tests/server.pem version [91b4eb6112].





















































































































































































































































































































































































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+
+

issuer= /C=AU/ST=Queensland/O=CryptSoft Pty Ltd/CN=Test CA (1024 bit)
subject=/C=AU/ST=Queensland/O=CryptSoft Pty Ltd/CN=Server test cert (512 bit)
-----BEGIN CERTIFICATE-----
MIIB6TCCAVICAQQwDQYJKoZIhvcNAQEEBQAwWzELMAkGA1UEBhMCQVUxEzARBgNV
BAgTClF1ZWVuc2xhbmQxGjAYBgNVBAoTEUNyeXB0U29mdCBQdHkgTHRkMRswGQYD
VQQDExJUZXN0IENBICgxMDI0IGJpdCkwHhcNOTgwNjI5MjM1MjQwWhcNMDAwNjI4
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Fe9GEcStgOY2Ww/dgNdhjeD8ckUJNP5VZkVDTGiXav6ooKXfX3j/7tdkuD8Ey2//
Kv7+ue0CAwEAATANBgkqhkiG9w0BAQQFAAOBgQCVvvfkGSe2GHgDFfmOua4Isjb9
JVhImWMASiOClkZlMESDJjsszg/6+d/W+8TrbObhazpl95FivXBVucbj9dudh7AO
IZu1h1MAPlyknc9Ud816vz3FejB4qqUoaXjnlkrIgEbr/un7jSS86WOe0hRhwHkJ
FUGcPZf9ND22Etc+AQ==
-----END CERTIFICATE-----
-----BEGIN RSA PRIVATE KEY-----
MIIBPAIBAAJBAJ+zw4Qnlf8SMVIPFe9GEcStgOY2Ww/dgNdhjeD8ckUJNP5VZkVD
TGiXav6ooKXfX3j/7tdkuD8Ey2//Kv7+ue0CAwEAAQJAN6W31vDEP2DjdqhzCDDu
OA4NACqoiFqyblo7yc2tM4h4xMbC3Yx5UKMN9ZkCtX0gzrz6DyF47bdKcWBzNWCj
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vnlEGo8K85u+KwIOimM48ZG8oTk7iFdkqLJR1utT3aU=
-----END RSA PRIVATE KEY-----
subject=/C=US/O=AT&T Bell Laboratories/OU=Prototype Research CA
issuer= /C=US/O=AT&T Bell Laboratories/OU=Prototype Research CA
notBefore=950413210656Z
notAfter =970412210656Z
-----BEGIN X509 CERTIFICATE-----

MIICCDCCAXECAQAwDQYJKoZIhvcNAQEEBQAwTjELMAkGA1UEBhMCVVMxHzAdBgNV
BAoUFkFUJlQgQmVsbCBMYWJvcmF0b3JpZXMxHjAcBgNVBAsUFVByb3RvdHlwZSBS
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BgNVBAYTAlVTMR8wHQYDVQQKFBZBVCZUIEJlbGwgTGFib3JhdG9yaWVzMR4wHAYD
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zIHK23PjYVxGGaZd669OJwD0CYyqH22HH9nFUGaoJdsv39ChW0NRdLE9+y8=
-----END X509 CERTIFICATE-----
issuer= /C=AU/ST=Queensland/O=CryptSoft Pty Ltd/CN=Test PCA (1024 bit)
subject=/C=AU/ST=Queensland/O=CryptSoft Pty Ltd/CN=Test CA (1024 bit)
-----BEGIN CERTIFICATE-----
MIICJjCCAY8CAQAwDQYJKoZIhvcNAQEEBQAwXDELMAkGA1UEBhMCQVUxEzARBgNV
BAgTClF1ZWVuc2xhbmQxGjAYBgNVBAoTEUNyeXB0U29mdCBQdHkgTHRkMRwwGgYD
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q30KIqGM/uoM60INq97qjDmCJapagcNBGQs=
-----END CERTIFICATE-----
-----BEGIN RSA PRIVATE KEY-----
MIICXQIBAAKBgQCju6PLddelT+nIMm07GQwmYa/eZ2JWbsmt2gotSCqM7asFp425
gxSK4jqhhT62UPpqDBEwvQ+fYkVv3RV0r9ReuZGv12NoS4fXsQgqO17lHA7Od0Kd
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21ru4dlPAkEAx9jj7BgKn5TYnMoBSSe0afjsV9oApVpN1Nacb1YDtCwy+scp3++s
nFxlv98wxIlSdpwMUn+AUWfjiWR7Tu/G/wJBAJ/KjwZIrFVxewP0x2ILYsTRYLzz
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pwFahxBRhkJKsxhjoFJBX9yl75JoY4Wvm5Tbo9ih6UJaRx3kqfkN14L2BKYcsZgb
KY9vmDOYy6iNfjDeWTfJAkBkfPUb8oTJ/nSP5zN6sqGxSY4krc4xLxpRmxoJ8HL2
XfhqXkTzbU13RX9JJ/NZ8vQN9Vm2NhxRGJocQkmcdVtJ
-----END RSA PRIVATE KEY-----
-----BEGIN X509 CERTIFICATE-----
MIICYDCCAiACAgEoMAkGBSsOAwINBQAwfDELMAkGA1UEBhMCVVMxNjA0BgNVBAoT
LU5hdGlvbmFsIEFlcm9uYXV0aWNzIGFuZCBTcGFjZSBBZG1pbmlzdHJhdGlvbjEZ
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Yh2WeU86/pHNdkUC1IgCFEfxe1f0oMpxJyrJ5XIxTi7vGdoK
-----END X509 CERTIFICATE-----
-----BEGIN X509 CERTIFICATE-----

MIICGTCCAdgCAwCqTDAJBgUrDgMCDQUAMHwxCzAJBgNVBAYTAlVTMTYwNAYDVQQK
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LC7obsrHD8XAHG+ZRG==
-----END X509 CERTIFICATE-----
-----BEGIN CERTIFICATE-----
MIICTTCCAbagAwIBAgIBADANBgkqhkiG9w0BAQQFADBMMQswCQYDVQQGEwJHQjEM
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S7ELuYGtmYgYm9NZOIr7yU0=
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
MIIB6jCCAZQCAgEtMA0GCSqGSIb3DQEBBAUAMIGAMQswCQYDVQQGEwJVUzE2MDQG
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GJNMJ4L0AJ/ac+SmHZc=
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
MIICajCCAdMCBDGA0QUwDQYJKoZIhvcNAQEEBQAwfTELMAkGA1UEBhMCQ2ExDzAN
BgNVBAcTBk5lcGVhbjEeMBwGA1UECxMVTm8gTGlhYmlsaXR5IEFjY2VwdGVkMR8w
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-----END CERTIFICATE-----

issuer= /C=AU/ST=Queensland/O=CryptSoft Pty Ltd/CN=Test PCA (1024 bit)
subject=/C=AU/ST=Queensland/O=CryptSoft Pty Ltd/CN=Test PCA (1024 bit)
-----BEGIN CERTIFICATE-----
MIICJzCCAZACAQAwDQYJKoZIhvcNAQEEBQAwXDELMAkGA1UEBhMCQVUxEzARBgNV
BAgTClF1ZWVuc2xhbmQxGjAYBgNVBAoTEUNyeXB0U29mdCBQdHkgTHRkMRwwGgYD
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OTEzNTczN1owXDELMAkGA1UEBhMCQVUxEzARBgNVBAgTClF1ZWVuc2xhbmQxGjAY
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cRBpDmcBbYLkSyB92WURvsZ1LtjEcn+cdQVI
-----END CERTIFICATE-----
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
subject=/C=US/O=RSA Data Security, Inc./OU=Commercial Certification Authority
issuer= /C=US/O=RSA Data Security, Inc./OU=Commercial Certification Authority
notBefore=941104185834Z
notAfter =991103185834Z
-----BEGIN X509 CERTIFICATE-----

MIICIzCCAZACBQJBAAAWMA0GCSqGSIb3DQEBAgUAMFwxCzAJBgNVBAYTAlVTMSAw
HgYDVQQKExdSU0EgRGF0YSBTZWN1cml0eSwgSW5jLjErMCkGA1UECxMiQ29tbWVy
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0v5loMC86qYjFmZsGySp8+x5NRhPJsjjr1BKx6cxa9B8GJ1Qv6km+iYrRpwUqbtb
MJhCKLVLU7tDCZJAuqiqWqTGtotXTcU=
-----END X509 CERTIFICATE-----
subject=/C=US/O=RSA Data Security, Inc./OU=Secure Server Certification Authority
issuer= /C=US/O=RSA Data Security, Inc./OU=Secure Server Certification Authority
notBefore=941109235417Z
notAfter =991231235417Z
-----BEGIN X509 CERTIFICATE-----

MIICKTCCAZYCBQJBAAABMA0GCSqGSIb3DQEBAgUAMF8xCzAJBgNVBAYTAlVTMSAw
HgYDVQQKExdSU0EgRGF0YSBTZWN1cml0eSwgSW5jLjEuMCwGA1UECxMlU2VjdXJl
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-----END X509 CERTIFICATE-----
subject=/C=ZA/SP=Western Cape/L=Cape Town/O=Thawte Consulting cc
	/OU=Certification Services Division/CN=Thawte Server CA
	/[email protected]
issuer= /C=ZA/SP=Western Cape/L=Cape Town/O=Thawte Consulting cc
	/OU=Certification Services Division/CN=Thawte Server CA
	/[email protected]
-----BEGIN CERTIFICATE-----
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-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----
Tims test GCI CA

-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----

-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----

 subject=/L=Internet/O=VeriSign, Inc./OU=VeriSign Class 2 CA - Individual Subscriber
 issuer= /L=Internet/O=VeriSign, Inc./OU=VeriSign Class 2 CA - Individual Subscriber

-----BEGIN CERTIFICATE-----
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p4y+p7SdMIkEwIZfds0VbnQyX5MRUJY=
-----END CERTIFICATE-----

 subject=/C=US/O=VeriSign, Inc./OU=Class 3 Public Primary Certification Authority
 issuer= /C=US/O=VeriSign, Inc./OU=Class 3 Public Primary Certification Authority
-----BEGIN CERTIFICATE-----
MIICMTCCAZoCBQKhAAABMA0GCSqGSIb3DQEBAgUAMF8xCzAJBgNVBAYTAlVTMRcw
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-----END CERTIFICATE-----
 subject=/C=US/O=VeriSign, Inc./OU=Class 4 Public Primary Certification Authority
 issuer= /C=US/O=VeriSign, Inc./OU=Class 4 Public Primary Certification Authority
-----BEGIN CERTIFICATE-----
MIICMTCCAZoCBQKmAAABMA0GCSqGSIb3DQEBAgUAMF8xCzAJBgNVBAYTAlVTMRcw
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-----END CERTIFICATE-----








Added tests/tls.tcl version [93cdd63c43].





























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#
# Copyright (C) 1997-1999 Matt Newman <[email protected]>
#
# $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tests/Attic/tls.tcl,v 1.1.1.1 2000/01/19 22:10:59 aborr Exp $
#
set dir [file dirname [info script]]
regsub {\.} [info tclversion] {} vshort
if {$tcl_platform(platform) == "windows"} {
    if {[info exists tcl_platform(debug)]} {
	load $dir/../win/Debug$vshort/tls.dll
    } else {
	load $dir/../win/Release$vshort/tls.dll
    }
} else {
    load [glob $dir/../unix/libtls*]
}

proc bgerror {err} {
    global errorInfo
    puts stderr "BG Error: $errorInfo"
}

source $dir/../library/tls.tcl
set tls::debug 2









Added tests/tlsAuto.tcl version [edef8cc17e].






























































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#
# Copyright (C) 1997-1999 Matt Newman <[email protected]>
#
# $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tests/Attic/tlsAuto.tcl,v 1.1.1.1 2000/01/19 22:10:59 aborr Exp $
#

set dir [file dirname [info script]]
cd $dir
source tls.tcl

proc fromServer {chan} {
    if {[catch {read $chan 10} data]} {
	catch {close $chan}
	tclLog "EOF ($data)"
	set ::/Exit 1
	return
    }
    if {[eof $chan]} {
	close $chan
	set ::/Exit 1
    }
    if {$data != ""} {
	puts -nonewline stderr "$data"
    }
}
proc doit {chan count {delay 1000}} {
    if {$count == 0} {
	close $chan
	set ::/Exit 0
	return
    }
    puts $chan line$count
    flush $chan

    incr count -1
    after $delay doit $chan $count $delay
}
array set opts {
    -port	1234
    -host	localhost
}
array set opts $argv
#
# Initialize context
#
#tls::init -certfile client.pem -cafile server.pem ;#-cipher RC4-MD5
tls::init
#
# Create socket and import SSL layer
#
#set chan [tls::socket -async -request 0 $opts(-host) $opts(-port)]
set chan [tls::socket -request 0 $opts(-host) $opts(-port)]

fconfigure $chan -buffering none -blocking 0 -translation binary
fileevent $chan readable [list fromServer $chan]

doit $chan 1000 100
vwait /Exit








Added tests/tlsBlocking.tcl version [e6f4d2461b].










































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#
# Copyright (C) 1997-1999 Matt Newman <[email protected]>
#
# $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tests/Attic/tlsBlocking.tcl,v 1.1.1.1 2000/01/19 22:10:59 aborr Exp $
#

set dir [file dirname [info script]]
cd $dir
source tls.tcl

proc bgerror {msg} {tclLog "BG: $msg"}

array set opts {
    -port 1234
    -host localhost
}
array set opts $argv
#
# Initialize Context
#
# Comment out next line for non-RSA testing
#tls::init -cafile server.pem -certfile client.pem
#tls::init
#
# Create socket and import
#
set chan [tls::socket -require 0 $opts(-host) $opts(-port)]
tls::handshake $chan

set max 10
#set max 100
#set max 3
for {set i 0} {$i < $max} {incr i} {
    puts $chan line$i
    flush $chan
    puts stdout [gets $chan]
}
close $chan








Added tests/tlsCiphers.tcl version [c19f5798af].




















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#
# Copyright (C) 1997-1999 Matt Newman <[email protected]>
#
# $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tests/Attic/tlsCiphers.tcl,v 1.1.1.1 2000/01/19 22:10:59 aborr Exp $
#

set dir [file dirname [info script]]
cd $dir
source tls.tcl

if {[llength $argv] == 0} {
    puts stderr "Usage: ciphers protocol ?verbose?"
    exit 1
}
puts [join [eval tls::ciphers $argv] \n]
exit 0








Added tests/tlsHttp.tcl version [7f42afdb27].










































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#
# Copyright (C) 1997-1999 Matt Newman <[email protected]>
#
# $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tests/Attic/tlsHttp.tcl,v 1.1.1.1 2000/01/19 22:10:59 aborr Exp $
#
package require base64

set dir [file dirname [info script]]
cd $dir
source tls.tcl
package require http

#
# Initialize context
#
#tls::init -certfile client.pem -cafile server.pem -ssl2 1 -ssl3 1 -tls1 0 ;#-cipher RC4-MD5
tls::init -cafile server.pem 
#
# Register with http module
#
http::register https 443 [list ::tls::socket -require 1]

set user novadigm\\matt
set pass sensus

set auth [Base64_Encode "${user}:$pass"]
set hdrs [list Authorization [list Basic $auth]]
#set hdrs {}

set url http://localhost:3466/
set url https://intranet.novadigm.com/
set url https://localhost/
set url https://developer.netscape.com/

set tok [http::geturl $url -headers $hdrs]

parray $tok
exit








Added tests/tlsSrv.tcl version [48f03073a3].

































































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#
# Copyright (C) 1997-1999 Matt Newman <[email protected]>
#
# $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tests/Attic/tlsSrv.tcl,v 1.1.1.1 2000/01/19 22:10:59 aborr Exp $
#
# Sample Tls-enabled server
#
set dir [file dirname [info script]]
cd $dir
source tls.tcl
#lappend auto_path d:/tcl80/lib
#package require tls

#
# Sample callback - just reflect data back to client
#
proc reflectCB {chan {verbose 0}} {
    set x hello
    if {[catch {read $chan 1024} data]} {
	puts stderr "EOF ($data)"
	catch {close $chan}
	return
    }
	
    if {$verbose && $data != ""} {
	puts -nonewline stderr $data
    }
    if {[eof $chan]} {    ;# client gone or finished
	puts stderr "EOF"
	close $chan        ;# release the servers client channel
	return
    }
    puts -nonewline $chan $data
    flush $chan
}
proc acceptCB { chan ip port } {
    puts "accept: $chan $ip $port [fconfigure $chan]"
    if {[catch {
	tls::handshake $chan
    } err]} {
	catch {close $chan}
	return
    }
    puts [tls::status $chan]

    fconfigure $chan -buffering none -blocking 0
    fileevent $chan readable [list reflectCB $chan 1]
}
#tls::init -cafile server.pem -certfile server.pem 
tls::init -cafile server.pem
#tls::init 

set chan [tls::socket -server acceptCB \
		-request 1 -require 0 1234]
#		-require 1 -command tls::callback 1234]

puts "Server waiting connection on $chan (1234)"
puts [fconfigure $chan]

# Go into the eventloop
vwait /Exit








Added tests/tlsSrv2.tcl version [ace6787720].




























































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#
# Copyright (C) 1997-1999 Matt Newman <[email protected]>
#
# $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tests/Attic/tlsSrv2.tcl,v 1.1.1.1 2000/01/19 22:10:59 aborr Exp $
#
# Sample Tls-enabled server
#
set dir [file dirname [info script]]
cd $dir
source tls.tcl
#lappend auto_path d:/tcl80/lib
#package require tls

#
# Sample callback - just reflect data back to client
#
proc reflectCB {chan {verbose 0}} {
    if {[catch {read $chan 1024} data]} {
	puts stderr "EOF ($data)"
	catch {close $chan}
	return
    }
	
    if {$verbose && $data != ""} {
	puts -nonewline stderr $data
    }
    if {[eof $chan]} {    ;# client gone or finished
	puts stderr "EOF"
	close $chan        ;# release the servers client channel
	return
    }
    puts -nonewline $chan $data
    flush $chan
}
proc acceptCB { chan ip port } {
    puts "accept: $chan $ip $port"

    if {![tls::handshake $chan]} {
	puts stderr "Handshake pending"
	return
    }
    array set cert [tls::status $chan]
    parray cert

    fconfigure $chan -buffering none -blocking 0
    fileevent $chan readable [list reflectCB $chan 1]
}
tls::init -certfile server.pem -tls1 1 ;#-cipher RC4-SHA

set chan [tls::socket -server acceptCB \
		-request 1 -require 0 -command tls::callback 1234]

puts "Server waiting connection on $chan (1234)"

# Go into the eventloop
vwait /Exit








Added tests/tlsUpload.tcl version [85da6e7341].





























































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#
# Copyright (C) 1997-1999 Matt Newman <[email protected]>
#
# $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tests/Attic/tlsUpload.tcl,v 1.1.1.1 2000/01/19 22:10:59 aborr Exp $
#

set dir [file dirname [info script]]
cd $dir
source tls.tcl

proc fromServer {chan} {
    if {[catch {read $chan 10} data]} {
	catch {close $chan}
	tclLog "EOF ($data)"
	set ::/Exit 1
	return
    }
    if {[eof $chan]} {
	close $chan
	set ::/Exit 1
    }
    if {$data != ""} {
	puts -nonewline stderr "$data"
    }
}
proc doit {chan count {delay 1000}} {
    if {$count == 0} {
	close $chan
	set ::/Exit 0
	return
    }
    puts $chan line$count
    flush $chan

    incr count -1
    after $delay doit $chan $count $delay
}
proc done {chan bytes {error ""}} {
    set ::/Exit 1
    tclLog "fcopy done: $bytes ($error) eof=[eof $chan]"
}
#
# Initialize Context
#
tls::init -certfile client.pem -cafile server.pem
#
# Create and import socket
#
set chan [tls::socket -request 1 localhost 1234]

fconfigure $chan -buffering full

set fp [open [lindex $argv 0]]
fcopy $fp $chan -command [list done $chan]
#fileevent $chan readable [list fromServer $chan]
vwait /Exit
tclLog Exiting...








Added tls.c version [65b25f6ccd].










































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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/*
 * Copyright (C) 1997-1999 Matt Newman <[email protected]>
 *
 * $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tls.c,v 1.1.1.1 2000/01/19 22:10:58 aborr Exp $
 *
 * TLS (aka SSL) Channel - can be layered on any bi-directional
 * Tcl_Channel (Note: Requires Trf Core Patch)
 *
 * This was built (almost) from scratch based upon observation of
 * OpenSSL 0.9.2B
 *
 * Addition credit is due for Andreas Kupries ([email protected]), for
 * providing the Tcl_ReplaceChannel mechanism and working closely with me
 * to enhance it to support full fileevent semantics.
 *
 * Also work done by the follow people provided the impetus to do this "right":
 *	tclSSL (Colin McCormack, Shared Technology)
 *	SSLtcl (Peter Antman)
 *
 */

#include "tlsInt.h"
#include "tclOpts.h"

/*
 * External functions
 */

/*
 * Forward declarations
 */

#define F2N( key, dsp) \
	(((key) == NULL)?(char*)NULL:Tcl_TranslateFileName( interp, (key), (dsp)))
#define REASON()	ERR_reason_error_string(ERR_get_error())

static int	CiphersObjCmd _ANSI_ARGS_ ((ClientData clientData, Tcl_Interp *interp,
			   int objc, Tcl_Obj *CONST objv[]));

static int	HandshakeObjCmd _ANSI_ARGS_ ((ClientData clientData, Tcl_Interp *interp,
			   int objc, Tcl_Obj *CONST objv[]));

static int	ImportObjCmd _ANSI_ARGS_ ((ClientData clientData, Tcl_Interp *interp,
			   int objc, Tcl_Obj *CONST objv[]));

static int	StatusObjCmd _ANSI_ARGS_ ((ClientData clientData, Tcl_Interp *interp,
			   int objc, Tcl_Obj *CONST objv[]));
static SSL_CTX *CTX_Init _ANSI_ARGS_((Tcl_Interp *interp, int proto, char *key,
			    char *cert, char *CAdir, char *CAfile, char *ciphers));

#define TLS_PROTO_SSL2	0x01
#define TLS_PROTO_SSL3	0x02
#define TLS_PROTO_TLS1	0x04
#define ENABLED(flag, mask)	(((flag) & (mask)) == (mask))
/*
 * Static data structures
 */

#ifndef NO_DH
/* from openssl/apps/s_server.c */

static unsigned char dh512_p[]={
        0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
        0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
        0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
        0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
        0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
        0x47,0x74,0xE8,0x33,
        };
static unsigned char dh512_g[]={
	0x02,
};

static DH *get_dh512()
{
    DH *dh=NULL;

    if ((dh=DH_new()) == NULL) return(NULL);

    dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
    dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);

    if ((dh->p == NULL) || (dh->g == NULL))
	return(NULL);
    return(dh);
}
#endif

/*
 * Per OpenSSL 0.9.4 Compat
 */
#ifndef STACK_OF
#define STACK_OF(x)			STACK
#define sk_SSL_CIPHER_num(sk)		sk_num((sk))
#define sk_SSL_CIPHER_value( sk, index)	(SSL_CIPHER*)sk_value((sk), (index))
#endif

/*
 *-------------------------------------------------------------------
 *
 * InfoCallback --
 *
 *	monitors SSL connection process
 *
 * Results:
 *	None
 *
 * Side effects:
 *	Calls callback (if defined)
 *-------------------------------------------------------------------
 */
static void
InfoCallback(SSL *ssl, int where, int ret)
{
    State *statePtr = (State*)SSL_get_app_data(ssl);
    Tcl_Obj *cmdPtr;
    char *major; char *minor;
    int w;

    if (statePtr->callback == (Tcl_Obj*)NULL)
	return;

    cmdPtr = Tcl_DuplicateObj(statePtr->callback);

#if 0
    if (where & SSL_CB_ALERT) {
	sev = SSL_alert_type_string_long(ret);
	if (strcmp( sev, "fatal")==0) {	/* Map to error */
	    Tls_Error(statePtr, SSL_ERROR(ssl, 0));
	    return;
	}
    }
#endif
    if (where & SSL_CB_HANDSHAKE_START) {
	major = "handshake";
	minor = "start";
    } else if (where & SSL_CB_HANDSHAKE_DONE) {
	major = "handshake";
	minor = "done";
    } else {
	if (where & SSL_CB_ALERT)		major = "alert";
	else if (where & SSL_ST_CONNECT)	major = "connect";
	else if (where & SSL_ST_ACCEPT)		major = "accept";
	else					major = "unknown";

	if (where & SSL_CB_READ)		minor = "read";
	else if (where & SSL_CB_WRITE)		minor = "write";
	else if (where & SSL_CB_LOOP)		minor = "loop";
	else if (where & SSL_CB_EXIT)		minor = "exit";
	else					minor = "unknown";
    }


    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr, 
	    Tcl_NewStringObj( "info", -1));

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr, 
	    Tcl_NewStringObj( Tcl_GetChannelName(statePtr->self), -1) );

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewStringObj( major, -1) );

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewStringObj( minor, -1) );

    if (where & (SSL_CB_LOOP|SSL_CB_EXIT)) {
	Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewStringObj( SSL_state_string_long(ssl), -1) );
    } else if (where & SSL_CB_ALERT) {
	char *cp = SSL_alert_desc_string_long(ret);

	Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewStringObj( cp, -1) );
    } else {
	Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewStringObj( SSL_state_string_long(ssl), -1) );
    }
    Tcl_Preserve( (ClientData) statePtr->interp);
    Tcl_Preserve( (ClientData) statePtr);

    Tcl_IncrRefCount( cmdPtr);
    (void) Tcl_GlobalEvalObj(statePtr->interp, cmdPtr);
    Tcl_DecrRefCount( cmdPtr);

    Tcl_Release( (ClientData) statePtr);
    Tcl_Release( (ClientData) statePtr->interp);

}

/*
 *-------------------------------------------------------------------
 *
 * VerifyCallback --
 *
 *	monitors SSL cerificate validation process
 *	This is called whenever a certificate is inspected
 *	 or decided invalid
 *
 * Results:
 *	ok - let SSL handle it
 *
 * Side effects:
 *	The err field of the currently operative State is set
 *	  to a string describing the SSL negotiation failure reason
 *-------------------------------------------------------------------
 */
static int
VerifyCallback(int ok, X509_STORE_CTX *ctx)
{
    SSL *ssl = (SSL*)X509_STORE_CTX_get_app_data(ctx);
    X509 *cert = X509_STORE_CTX_get_current_cert(ctx);
    State *statePtr = (State*)SSL_get_app_data(ssl);
    Tcl_Obj *cmdPtr;
    int depth = X509_STORE_CTX_get_error_depth(ctx);
    int err = X509_STORE_CTX_get_error(ctx);
    char *errStr;

    dprintf(stderr, "Verify: %d\n", ok);

    if (!ok)
	errStr = (char*)X509_verify_cert_error_string(err);
    else
	errStr = (char *)0;

    if (statePtr->callback == (Tcl_Obj*)NULL) {
	if (statePtr->vflags & SSL_VERIFY_FAIL_IF_NO_PEER_CERT)
	    return ok;
	else
	    return 1;
    }
    cmdPtr = Tcl_DuplicateObj(statePtr->callback);

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr, 
	    Tcl_NewStringObj( "verify", -1));

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr, 
	    Tcl_NewStringObj( Tcl_GetChannelName(statePtr->self), -1) );

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewIntObj( depth) );

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tls_NewX509Obj( statePtr->interp, cert) );

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewIntObj( ok) );

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewStringObj( errStr ? errStr : "", -1) );

    Tcl_Preserve( (ClientData) statePtr->interp);
    Tcl_Preserve( (ClientData) statePtr);

    Tcl_IncrRefCount( cmdPtr);
    if (Tcl_GlobalEvalObj(statePtr->interp, cmdPtr) != TCL_OK) {
	/* it got an error - reject the certificate */
	Tcl_BackgroundError( statePtr->interp);
	ok = 0;
    } else {
	if (Tcl_GetIntFromObj( statePtr->interp,
		    Tcl_GetObjResult( statePtr->interp), &ok) != TCL_OK) {
	    Tcl_BackgroundError( statePtr->interp);
	    ok = 0;
	}
    }
    Tcl_DecrRefCount( cmdPtr);

    Tcl_Release( (ClientData) statePtr);
    Tcl_Release( (ClientData) statePtr->interp);

    return(ok);	/* leave the disposition as SSL set it */
}

/*
 *-------------------------------------------------------------------
 *
 * Tls_Error --
 *
 *	Calls callback with $fd and $msg - so the callback can decide
 *	what to do with errors.
 *
 * Results:
 *	ok - let SSL handle it
 *
 * Side effects:
 *	The err field of the currently operative State is set
 *	  to a string describing the SSL negotiation failure reason
 *-------------------------------------------------------------------
 */
void
Tls_Error(State *statePtr, char *msg)
{
    Tcl_Obj *cmdPtr;

    if (msg && *msg) {
	Tcl_SetErrorCode( statePtr->interp, "SSL", msg, (char *)NULL);
    } else {
	msg = Tcl_GetStringFromObj(Tcl_GetObjResult(statePtr->interp), NULL);
    }
    statePtr->err = msg;

    if (statePtr->callback == (Tcl_Obj*)NULL) {
	char buf[BUFSIZ];
	sprintf(buf, "SSL channel \"%s\": error: %s",
	    Tcl_GetChannelName(statePtr->self), msg);
	Tcl_SetResult( statePtr->interp, buf, TCL_VOLATILE);
	Tcl_BackgroundError( statePtr->interp);
	return;
    }
    cmdPtr = Tcl_DuplicateObj(statePtr->callback);

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr, 
	    Tcl_NewStringObj( "error", -1));

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr, 
	    Tcl_NewStringObj( Tcl_GetChannelName(statePtr->self), -1) );

    Tcl_ListObjAppendElement( statePtr->interp, cmdPtr,
	    Tcl_NewStringObj( msg, -1) );

    Tcl_Preserve( (ClientData) statePtr->interp);
    Tcl_Preserve( (ClientData) statePtr);

    Tcl_IncrRefCount( cmdPtr);
    if (Tcl_GlobalEvalObj(statePtr->interp, cmdPtr) != TCL_OK) {
	Tcl_BackgroundError( statePtr->interp);
    }
    Tcl_DecrRefCount( cmdPtr);

    Tcl_Release( (ClientData) statePtr);
    Tcl_Release( (ClientData) statePtr->interp);
}

/*
 *-------------------------------------------------------------------
 *
 * PasswordCallback -- 
 *
 *	Called when a password is needed to unpack RSA and PEM keys
 *	Evals the tcl proc:  tls::password and returns the result as
 *	the password
 *-------------------------------------------------------------------
 */
#ifdef PRE_OPENSSL_0_9_4
/*
 * No way to handle user-data therefore no way without a global
 * variable to access the Tcl interpreter.
*/
static int
PasswordCallback(char *buf, int size, int verify)
{
    return -1;
}
#else
static int
PasswordCallback(char *buf, int size, int verify, void *udata)
{
    Tcl_Interp *interp = (Tcl_Interp*)udata;

    if (Tcl_Eval(interp, "tls::password") == TCL_OK) {
	char *ret = Tcl_GetStringResult(interp);
        strncpy(buf, ret, size);
	return strlen(ret);
    } else {
	return -1;
    }
}
#endif

/*
 *-------------------------------------------------------------------
 *
 * CiphersObjCmd -- list available ciphers
 *
 *	This procedure is invoked to process the "tls::ciphers" command
 *	to list available ciphers, based upon protocol selected.
 *
 * Results:
 *	A standard Tcl result list.
 *
 * Side effects:
 *	constructs and destroys SSL context (CTX)
 *
 *-------------------------------------------------------------------
 */
static int
CiphersObjCmd(clientData, interp, objc, objv)
    ClientData clientData;	/* Not used. */
    Tcl_Interp *interp;
    int objc;
    Tcl_Obj	*CONST objv[];
{
    static char *protocols[] = {
	"ssl2",
	"ssl3",
	"tls1",
	NULL
    };
    enum protocol {
	TLS_SSL2,
	TLS_SSL3,
	TLS_TLS1,
	TLS_NONE
    };
    Tcl_Obj *objPtr;
    SSL_CTX *ctx = NULL;
    SSL *ssl = NULL;
    STACK_OF(SSL_CIPHER) *sk;
    char *cp, buf[BUFSIZ];
    int index, verbose = 0;

    if (objc < 2 || objc > 3) {
	Tcl_WrongNumArgs(interp, 1, objv, "protocol ?verbose?");
        return TCL_ERROR;
    }
    if (Tcl_GetIndexFromObj( interp, objv[1], protocols, "protocol", 0,
	&index) != TCL_OK) {
	return TCL_ERROR;
    }
    if (objc > 2 && Tcl_GetBooleanFromObj( interp, objv[2],
	&verbose) != TCL_OK) {
	return TCL_ERROR;
    }
    switch ((enum protocol)index) {
    case TLS_SSL2:
#if defined(NO_SSL2)
		Tcl_AppendResult(interp, "protocol not supported", NULL);
		return TCL_ERROR;
#else
		ctx = SSL_CTX_new(SSLv2_method()); break;
#endif
    case TLS_SSL3:
#if defined(NO_SSL3)
		Tcl_AppendResult(interp, "protocol not supported", NULL);
		return TCL_ERROR;
#else
		ctx = SSL_CTX_new(SSLv3_method()); break;
#endif
    case TLS_TLS1:
#if defined(NO_TLS1)
		Tcl_AppendResult(interp, "protocol not supported", NULL);
		return TCL_ERROR;
#else
		ctx = SSL_CTX_new(TLSv1_method()); break;
#endif
    }
    if (ctx == NULL) {
	Tcl_AppendResult(interp, REASON(),
	    (char *) NULL);
	return TCL_ERROR;
    }
    ssl = SSL_new(ctx);
    if (ssl == NULL) {
	Tcl_AppendResult(interp, REASON(),
	    (char *) NULL);
	SSL_CTX_free(ctx);
	return TCL_ERROR;
    }
    objPtr = Tcl_NewListObj( 0, NULL);

    if (!verbose) {
	for (index = 0; ; index++) {
	    cp = (char*)SSL_get_cipher_list( ssl, index);
	    if (cp == NULL) break;
	    Tcl_ListObjAppendElement( interp, objPtr,
		Tcl_NewStringObj( cp, -1) );
	}
    } else {
	sk = SSL_get_ciphers(ssl);

	for (index = 0; index < sk_SSL_CIPHER_num(sk); index++) {
	    register int i;
	    SSL_CIPHER_description( sk_SSL_CIPHER_value( sk, index),
				    buf, sizeof(buf));
	    for (i = strlen(buf) - 1; i ; i--) {
		if (buf[i] == ' ' || buf[i] == '\n' ||
		    buf[i] == '\r' || buf[i] == '\t') {
		    buf[i] = '\0';
		} else {
		    break;
		}
	    }
	    Tcl_ListObjAppendElement( interp, objPtr,
		Tcl_NewStringObj( buf, -1) );
	}
    }
    SSL_free(ssl);
    SSL_CTX_free(ctx);

    Tcl_SetObjResult( interp, objPtr);
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------
 *
 * HandshakeObjCmd --
 *
 *	This command is used to verify whether the handshake is complete
 *	or not.
 *
 * Results:
 *	A standard Tcl result. 1 means handshake complete, 0 means pending.
 *
 * Side effects:
 *	May force SSL negotiation to take place.
 *
 *-------------------------------------------------------------------
 */

static int
HandshakeObjCmd(clientData, interp, objc, objv)
    ClientData clientData;	/* Not used. */
    Tcl_Interp *interp;
    int objc;
    Tcl_Obj *CONST objv[];
{
    Tcl_Channel chan;		/* The channel to set a mode on. */
    State *statePtr;		/* client state for ssl socket */
    int ret = 1;

    if (objc != 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "channel");
        return TCL_ERROR;
    }

    chan = Tcl_GetChannel(interp, Tcl_GetStringFromObj(objv[1], NULL), NULL);
    if (chan == (Tcl_Channel) NULL) {
        return TCL_ERROR;
    }
    if (Tcl_GetChannelType(chan) != Tls_ChannelType()) {
        Tcl_AppendResult(interp, "bad channel \"", Tcl_GetChannelName(chan),
                "\": not a TLS channel", NULL);
        return TCL_ERROR;
    }
    statePtr = (State *)Tcl_GetChannelInstanceData( chan);

    if (!SSL_is_init_finished(statePtr->ssl)) {
	int err;
	ret = Tls_WaitForConnect(statePtr, &err);
	if (ret < 0) {
	    char *errStr = statePtr->err;
	    Tcl_ResetResult(interp);
	    Tcl_SetErrno(err);

	    if (!errStr || *errStr == 0)
	        errStr = Tcl_PosixError(interp);

	    Tcl_AppendResult(interp, "handshake failed: ", errStr, (char*)NULL);
	    return TCL_ERROR;
	}
    }
    Tcl_SetObjResult(interp, Tcl_NewIntObj(ret));
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------
 *
 * ImportObjCmd --
 *
 *	This procedure is invoked to process the "ssl" command
 *
 *	The ssl command pushes SSL over a (newly connected) tcp socket
 *
 * Results:
 *	A standard Tcl result.
 *
 * Side effects:
 *	May modify the behavior of an IO channel.
 *
 *-------------------------------------------------------------------
 */

static int
ImportObjCmd(clientData, interp, objc, objv)
    ClientData clientData;	/* Not used. */
    Tcl_Interp *interp;
    int objc;
    Tcl_Obj *CONST objv[];
{
    Tcl_Channel chan;		/* The channel to set a mode on. */
    BIO *bio;
    State *statePtr;		/* client state for ssl socket */
    SSL_CTX *ctx = NULL;
    Tcl_Obj *script = NULL;
    int idx;
    int flags = TLS_TCL_INIT;
    int server = 0;		/* is connection incoming or outgoing? */
    char *key = NULL;
    char *cert = NULL;
    char *ciphers = NULL;
    char *CAfile = NULL;
    char *CAdir = NULL;
    char *model = NULL;
#if defined(NO_SSL2)
    int ssl2 = 0;
#else
    int ssl2 = 1;
#endif
#if defined(NO_SSL3)
    int ssl3 = 0;
#else
    int ssl3 = 1;
#endif
#if defined(NO_SSL2) && defined(NO_SSL3)
    int tls1 = 1;
#else
    int tls1 = 0;
#endif
    int proto = 0;
    int verify = 0, require = 0, request = 1;

    if (objc < 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "channel ?options?");
        return TCL_ERROR;
    }

    chan = Tcl_GetChannel(interp, Tcl_GetStringFromObj(objv[1], NULL), NULL);
    if (chan == (Tcl_Channel) NULL) {
        return TCL_ERROR;
    }

    for (idx = 2; idx < objc; idx++) {
	char *opt = Tcl_GetStringFromObj(objv[idx], NULL);

	if (opt[0] != '-')
	    break;

	OPTSTR( "-cafile", CAfile);
	OPTSTR( "-cadir", CAdir);
	OPTSTR( "-certfile", cert);
	OPTSTR( "-cipher", ciphers);
	OPTOBJ( "-command", script);
	OPTSTR( "-keyfile", key);
	OPTSTR( "-model", model);
	OPTBOOL( "-require", require);
	OPTBOOL( "-request", request);
	OPTBOOL( "-server", server);

	OPTBOOL( "-ssl2", ssl2);
	OPTBOOL( "-ssl3", ssl3);
	OPTBOOL( "-tls1", tls1);

	OPTBAD( "option", "-cafile, -cadir, -certfile, -cipher, -command, -keyfile, -model, -require, -request, -ssl2, -ssl3, -server, or -tls1");

	return TCL_ERROR;
    }
    if (request) verify |= SSL_VERIFY_CLIENT_ONCE | SSL_VERIFY_PEER;
    if (request && require) verify |= SSL_VERIFY_FAIL_IF_NO_PEER_CERT;
    if (verify == 0) verify = SSL_VERIFY_NONE;

    proto |= (ssl2 ? TLS_PROTO_SSL2 : 0);
    proto |= (ssl3 ? TLS_PROTO_SSL3 : 0);
    proto |= (tls1 ? TLS_PROTO_TLS1 : 0);

    if (model != NULL) {
	int mode;
	/* Get the "model" context */
	chan = Tcl_GetChannel( interp, model, &mode);
	if (chan == (Tcl_Channel)0) {
	    return TCL_ERROR;
	}
	if (Tcl_GetChannelType(chan) != Tls_ChannelType()) {
	    Tcl_AppendResult(interp, "bad channel \"", Tcl_GetChannelName(chan),
		    "\": not a TLS channel", NULL);
	    return TCL_ERROR;
	}
	statePtr = (State *)Tcl_GetChannelInstanceData( chan);
	ctx = statePtr->ctx;
    } else {
	if ((ctx = CTX_Init( interp, proto, key, cert, CAdir, CAfile, ciphers))
	    == (SSL_CTX*)0) {
	    return TCL_ERROR;
	}
    }

    /* new SSL state */
    statePtr = (State *) Tcl_Alloc((unsigned) sizeof(State));
    statePtr->self = (Tcl_Channel)NULL;
    statePtr->timer = (Tcl_TimerToken)NULL;

    statePtr->flags = flags;
    statePtr->watchMask = 0;
    statePtr->mode = 0;

    statePtr->interp = interp;
    statePtr->callback = (Tcl_Obj *)0;

    statePtr->vflags = verify;
    statePtr->ssl = (SSL*)0;
    statePtr->ctx = ctx;
    statePtr->bio = (BIO*)0;
    statePtr->p_bio = (BIO*)0;

    statePtr->err = "";

    Tcl_SetChannelOption(interp, chan, "-translation", "binary");
    Tcl_SetChannelOption(interp, chan, "-buffering", "none");

#if TCL_MAJOR_VERSION == 8 && TCL_MINOR_VERSION < 2
    statePtr->parent = chan;
    statePtr->self = Tcl_ReplaceChannel( interp,
				Tls_ChannelType(), (ClientData) statePtr,
			       (TCL_READABLE | TCL_WRITABLE), statePtr->parent);
#else
    statePtr->self = chan;
    Tcl_StackChannel( interp, Tls_ChannelType(), (ClientData) statePtr,
			       (TCL_READABLE | TCL_WRITABLE), chan);
#endif
    if (statePtr->self == (Tcl_Channel) NULL) {
        Tcl_EventuallyFree( (ClientData)statePtr, Tls_Free);
        return TCL_ERROR;
    }

    /* allocate script */
    if (script) {
	char * tmp = Tcl_GetStringFromObj(script, NULL);
	if (tmp && *tmp) {
	    statePtr->callback = Tcl_DuplicateObj(script);
	    Tcl_IncrRefCount( statePtr->callback);
	}
    }
    /* This is only needed because of a bug in OpenSSL, where the
     * ssl->verify_callback is not referenced!!! (Must be done
     * *before* SSL_new() is called!
     */
    SSL_CTX_set_verify(statePtr->ctx, verify, VerifyCallback);

    /*
     * SSL Initialization
     */

    statePtr->ssl = SSL_new(statePtr->ctx);
    if (!statePtr->ssl) {
        /* SSL library error */
        Tcl_AppendResult(interp,
                         "couldn't construct ssl session: ", REASON(),
                         (char *) NULL);
        Tcl_EventuallyFree( (ClientData)statePtr, Tls_Free);
        return TCL_ERROR;
    }

    /*
     * SSL Callbacks
     */

    SSL_set_app_data(statePtr->ssl, (VOID *)statePtr);	/* point back to us */

    /*
     * The following is broken - we need is to set the
     * verify_mode, but the library ignores the verify_callback!!!
     */
    /*SSL_set_verify(statePtr->ssl, verify, VerifyCallback);*/

    SSL_CTX_set_info_callback( statePtr->ctx, InfoCallback);

    /* Create Tcl_Channel BIO Handler */
    statePtr->p_bio = bio = BIO_new_tcl( statePtr, BIO_CLOSE);
    statePtr->bio = BIO_new(BIO_f_ssl());

    if (server) {
	statePtr->flags |= TLS_TCL_SERVER;
	SSL_set_accept_state(statePtr->ssl);
    } else {
	SSL_set_connect_state(statePtr->ssl);
    }
    SSL_set_bio(statePtr->ssl, bio, bio);
    BIO_set_ssl(statePtr->bio, statePtr->ssl, BIO_CLOSE);

    /*
     * End of SSL Init
     */
    Tcl_SetResult(interp, Tcl_GetChannelName(statePtr->self), TCL_VOLATILE);
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------
 *
 * CTX_Init -- construct a SSL_CTX instance
 *
 * Results:
 *	A valid SSL_CTX instance or NULL.
 *
 * Side effects:
 *	constructs SSL context (CTX)
 *
 *-------------------------------------------------------------------
 */

static SSL_CTX *
CTX_Init(interp, proto, key, cert, CAdir, CAfile, ciphers)
    Tcl_Interp *interp;
    int proto;
    char *key;
    char *cert;
    char *CAdir;
    char *CAfile;
    char *ciphers;
{
    SSL_CTX *ctx = NULL;
    Tcl_DString ds;
    Tcl_DString ds1;
    int off = 0;

    /* create SSL context */
#if !defined(NO_SSL2) && !defined(NO_SSL3)
    if (ENABLED(proto, TLS_PROTO_SSL2) &&
	ENABLED(proto, TLS_PROTO_SSL3)) {
	ctx = SSL_CTX_new(SSLv23_method());
    } else
#endif
    if (ENABLED(proto, TLS_PROTO_SSL2)) {
#if defined(NO_SSL2)
	Tcl_AppendResult(interp, "protocol not supported", NULL);
	return (SSL_CTX *)0;
#else
	ctx = SSL_CTX_new(SSLv2_method());
#endif
    } else if (ENABLED(proto, TLS_PROTO_TLS1)) {
	ctx = SSL_CTX_new(TLSv1_method());
    } else if (ENABLED(proto, TLS_PROTO_SSL3)) {
#if defined(NO_SSL3)
	Tcl_AppendResult(interp, "protocol not supported", NULL);
	return (SSL_CTX *)0;
#else
	ctx = SSL_CTX_new(SSLv3_method());
#endif
    } else {
	Tcl_AppendResult(interp, "no valid protocol selected", NULL);
	return (SSL_CTX *)0;
    }
    off |= (ENABLED(proto, TLS_PROTO_TLS1) ? 0 : SSL_OP_NO_TLSv1);
    off |= (ENABLED(proto, TLS_PROTO_SSL2) ? 0 : SSL_OP_NO_SSLv2);
    off |= (ENABLED(proto, TLS_PROTO_SSL3) ? 0 : SSL_OP_NO_SSLv3);

    SSL_CTX_set_app_data( ctx, (VOID*)interp);	/* remember the interpreter */
    SSL_CTX_set_options( ctx, SSL_OP_ALL);	/* all SSL bug workarounds */
    SSL_CTX_set_options( ctx, off);	/* all SSL bug workarounds */
    SSL_CTX_sess_set_cache_size( ctx, 128);

    if (ciphers != NULL)
	SSL_CTX_set_cipher_list(ctx, ciphers);

    /* set some callbacks */
    SSL_CTX_set_default_passwd_cb(ctx, PasswordCallback);
    SSL_CTX_set_default_passwd_cb_userdata(ctx, (void *)interp);

#ifndef NO_DH
    {
	DH* dh = get_dh512();
	SSL_CTX_set_tmp_dh(ctx, dh);
	DH_free(dh);
    }
#endif

    /* set our certificate */
    if (cert != NULL) {
	Tcl_DStringInit(&ds);

        if (SSL_CTX_use_certificate_file(ctx, F2N( cert, &ds),
					SSL_FILETYPE_PEM) <= 0) {
	    Tcl_DStringFree(&ds);
            Tcl_AppendResult(interp,
                             "unable to set certificate file ", cert, ": ",
                             REASON(), (char *) NULL);
            SSL_CTX_free(ctx);
            return (SSL_CTX *)0;
        }

        /* get the private key associated with this certificate */
        if (key == NULL) key=cert;

        if (SSL_CTX_use_PrivateKey_file(ctx, F2N( key, &ds),
					SSL_FILETYPE_PEM) <= 0) {
	    Tcl_DStringFree(&ds);
            Tcl_AppendResult(interp,
                             "unable to set public key file ", key, " ",
                             REASON(), (char *) NULL);
            SSL_CTX_free(ctx);
            return (SSL_CTX *)0;
        }
	Tcl_DStringFree(&ds);
        /* Now we know that a key and cert have been set against
         * the SSL context */
        if (!SSL_CTX_check_private_key(ctx)) {
            Tcl_AppendResult(interp,
                             "private key does not match the certificate public key",
                             (char *) NULL);
            SSL_CTX_free(ctx);
            return (SSL_CTX *)0;
        }
    } else {
        cert = (char*)X509_get_default_cert_file();

        if (SSL_CTX_use_certificate_file(ctx, cert,
					SSL_FILETYPE_PEM) <= 0) {
#if 0
	    Tcl_DStringFree(&ds);
            Tcl_AppendResult(interp,
                             "unable to use default certificate file ", cert, ": ",
                             REASON(), (char *) NULL);
            SSL_CTX_free(ctx);
            return (SSL_CTX *)0;
#endif
        }
    }
	
    Tcl_DStringInit(&ds);
    Tcl_DStringInit(&ds1);
    if (!SSL_CTX_load_verify_locations(ctx, F2N(CAfile, &ds), F2N(CAdir, &ds1)) ||
        !SSL_CTX_set_default_verify_paths(ctx)) {
#if 0
	Tcl_DStringFree(&ds);
	Tcl_DStringFree(&ds1);
	/* Don't currently care if this fails */
	Tcl_AppendResult(interp, "SSL default verify paths: ",
                             REASON(), (char *) NULL);
	SSL_CTX_free(ctx);
	return (SSL_CTX *)0;
#endif
    }
    SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file( F2N(CAfile, &ds) ));

    Tcl_DStringFree(&ds);
    Tcl_DStringFree(&ds1);
    return ctx;
}

/*
 *-------------------------------------------------------------------
 *
 * StatusObjCmd -- return certificate for connected peer.
 *
 * Results:
 *	A standard Tcl result.
 *
 * Side effects:
 *	None.
 *
 *-------------------------------------------------------------------
 */
static int
StatusObjCmd(clientData, interp, objc, objv)
    ClientData clientData;	/* Not used. */
    Tcl_Interp *interp;
    int objc;
    Tcl_Obj	*CONST objv[];
{
    State *statePtr;
    X509 *peer;
    Tcl_Obj *objPtr;
    Tcl_Channel chan;
    char *channelName, *ciphers;
    int mode;

    if (objc != 2) {
        Tcl_WrongNumArgs(interp, 1, objv, "channel");
        return TCL_ERROR;
    }
    channelName = Tcl_GetStringFromObj(objv[1], NULL);

    chan = Tcl_GetChannel( interp, channelName, &mode);
    if (chan == (Tcl_Channel)0) {
	return TCL_ERROR;
    }
    if (Tcl_GetChannelType(chan) != Tls_ChannelType()) {
        Tcl_AppendResult(interp, "bad channel \"", Tcl_GetChannelName(chan),
                "\": not a TLS channel", NULL);
        return TCL_ERROR;
    }
    statePtr = (State *)Tcl_GetChannelInstanceData( chan);
    peer = SSL_get_peer_certificate(statePtr->ssl);
    if (peer)
	objPtr = Tls_NewX509Obj( interp, peer);
    else
	objPtr = Tcl_NewListObj( 0, NULL);

    ciphers = (char*)SSL_get_cipher(statePtr->ssl);
    if (ciphers != NULL && strcmp(ciphers, "(NONE)")!=0) {
	Tcl_ListObjAppendElement( interp, objPtr,
		Tcl_NewStringObj( "cipher", -1) );
	Tcl_ListObjAppendElement( interp, objPtr,
		Tcl_NewStringObj( SSL_get_cipher(statePtr->ssl), -1) );
    }
    Tcl_SetObjResult( interp, objPtr);
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------
 *
 * Tls_Free --
 *
 *	This procedure cleans up when a SSL socket based channel
 *	is closed and its reference count falls below 1
 *
 * Results:
 *	none
 *
 * Side effects:
 *	Frees all the state
 *
 *-------------------------------------------------------------------
 */
void
Tls_Free( char *blockPtr )
{
    State *statePtr = (State *)blockPtr;

    /* we're assuming here that we're single-threaded */
    if (statePtr->ssl) {
	SSL_shutdown(statePtr->ssl);
	SSL_free(statePtr->ssl);
    }
    if (statePtr->callback)
	Tcl_DecrRefCount(statePtr->callback);

    if (statePtr->timer != (Tcl_TimerToken)NULL)
	Tcl_DeleteTimerHandler (statePtr->timer);

    Tcl_Free((char *)statePtr);
}

/*
 *-------------------------------------------------------------------
 *
 * Tls_Init --
 *
 *	This is a package initialization procedure, which is called
 *	by Tcl when this package is to be added to an interpreter.
 *
 * Results:  Ssl configured and loaded
 *
 * Side effects:
 *	 create the ssl command, initialise ssl context
 *
 *-------------------------------------------------------------------
 */

int
Tls_Init(Tcl_Interp *interp)		/* Interpreter in which the package is
                                         * to be made available. */
{
#if TCL_MAJOR_VERSION >= 8 && TCL_MINOR_VERSION >= 2
    if (!Tcl_InitStubs(interp, TCL_VERSION, 0)) {
        return TCL_ERROR;
    }
#endif
    SSL_load_error_strings();
    ERR_load_crypto_strings();
    SSL_library_init();

    Tcl_CreateObjCommand(interp, "tls::ciphers", CiphersObjCmd , (ClientData) 0,
                      (Tcl_CmdDeleteProc *) NULL);

    Tcl_CreateObjCommand(interp, "tls::handshake", HandshakeObjCmd , (ClientData) 0,
                      (Tcl_CmdDeleteProc *) NULL);

    Tcl_CreateObjCommand(interp, "tls::import", ImportObjCmd , (ClientData) 0,
                      (Tcl_CmdDeleteProc *) NULL);

    Tcl_CreateObjCommand(interp, "tls::status", StatusObjCmd , (ClientData) 0,
                      (Tcl_CmdDeleteProc *) NULL);

    return Tcl_PkgProvide(interp, PACKAGE, VERSION);
}


/*
 *------------------------------------------------------*
 *
 *	Tls_SafeInit --
 *
 *	------------------------------------------------*
 *	Standard procedure required by 'load'. 
 *	Initializes this extension for a safe interpreter.
 *	------------------------------------------------*
 *
 *	Sideeffects:
 *		As of 'Tls_Init'
 *
 *	Result:
 *		A standard Tcl error code.
 *
 *------------------------------------------------------*
 */

int
Tls_SafeInit (Tcl_Interp* interp)
{
    return Tls_Init (interp);
}








Added tls.h version [166f5ea0c8].













































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/*
 * Copyright (C) 1997-1999 Matt Newman <[email protected]>
 *
 * $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tls.h,v 1.1.1.1 2000/01/19 22:10:58 aborr Exp $
 *
 * TLS (aka SSL) Channel - can be layered on any bi-directional
 * Tcl_Channel (Note: Requires Trf Core Patch)
 *
 * This was built from scratch based upon observation of OpenSSL 0.9.2B
 *
 * Addition credit is due for Andreas Kupries ([email protected]), for
 * providing the Tcl_ReplaceChannel mechanism and working closely with me
 * to enhance it to support full fileevent semantics.
 *
 * Also work done by the follow people provided the impetus to do this "right":-
 *	tclSSL (Colin McCormack, Shared Technology)
 *	SSLtcl (Peter Antman)
 *
 */
#ifndef _TLS_H
#define _TLS_H

#include <tcl.h>	/* Internal definitions for Tcl. */

#ifdef TCL_STORAGE_CLASS
# undef TCL_STORAGE_CLASS
#endif
#ifdef BUILD_tls
# define TCL_STORAGE_CLASS DLLEXPORT
#else
# define TCL_STORAGE_CLASS DLLIMPORT
#endif

/*
 * Forward declarations
 */

EXTERN int Tls_Init _ANSI_ARGS_ ((Tcl_Interp *));
EXTERN int Tls_SafeInit _ANSI_ARGS_ ((Tcl_Interp *));

#endif /* _TLS_H */








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<html>

<head>
<meta http-equiv="Content-Type"
content="text/html; charset=iso-8859-1">
<meta name="Author"
content="Matt Newman &lt;[email protected]&gt;">
<meta name="Copyright" content="1999 Matt Newman.">
<meta name="GENERATOR" content="Microsoft FrontPage Express 2.0">
<title>TLS (SSL) Tcl Commands</title>
</head>

<body bgcolor="#FFFFFF">

<dl>
    <dd><a href="#NAME">NAME</a> <dl>
            <dd><strong>tls</strong> - binding to <strong>OpenSSL</strong>
                toolkit.</dd>
        </dl>
    </dd>
    <dd><a href="#SYNOPSIS">SYNOPSIS</a> </dd>
    <dd><dl>
            <dd><b>package require tls </b><em>?1.3?</em></dd>
            <dt>&nbsp;</dt>
            <dd><b>tls::init </b><i>?options?</i> </dd>
            <dd><b>tls::socket </b><em>?options? host port</em></dd>
            <dd><b>tls::socket</b><em> ?-server command?
                ?options? port</em></dd>
            <dd><b>tls::handshake</b><em> channel</em></dd>
            <dd><b>tls::status </b><em>channel</em></dd>
            <dd><b>tls::import</b><em> channel ?options?</em></dd>
            <dd><b>tls::ciphers </b><em>protocol ?verbose?</em></dd>
        </dl>
    </dd>
    <dd><a href="#COMMANDS">COMMANDS</a></dd>
    <dd><a href="#CONFIGURATION OPTIONS">CONFIGURATION OPTIONS</a></dd>
    <dd><a href="#HTTPS EXAMPLE">HTTPS EXAMPLE</a></dd>
    <dd><a href="#SEE ALSO">SPECIAL CONSIDERATIONS</a></dd>
    <dd><a href="#SEE ALSO">SEE ALSO</a></dd>
</dl>

<hr>

<h3><a name="NAME">NAME</a></h3>

<p><strong>tls</strong> - binding to <strong>OpenSSL</strong>
toolkit.</p>

<h3><a name="SYNOPSIS">SYNOPSIS</a></h3>

<p><b>package require tls </b><em>?1.3?</em><br>
<br>
<a href="#tls::init"><b>tls::init </b><i>?options?</i><br>
</a><a href="#tls::socket"><b>tls::socket </b><em>?options? host
port</em><br>
<b>tls::socket</b><em> ?-server command? ?options? port</em><br>
</a><a href="#tls::status"><b>tls::status </b><em>channel</em><br>
</a><a href="#tls::handshake"><b>tls::handshake</b><em> channel</em></a><br>
<br>
<a href="#tls::import"><b>tls::import </b><i>channel ?options?</i></a><br>
<a href="#tls::ciphers protocol ?verbose?"><strong>tls::ciphers</strong>
<em>protocol ?verbose?</em></a></p>

<h3><a name="DESCRIPTION">DESCRIPTION</a></h3>

<p>This extension provides a generic binding to <a
href="http://www.openssl.org/">OpenSSL</a>, utilizing the <a
href="http://www.oche.de/~akupries/soft/trf/index.html">Trf</a>
Channel Stacking patch for Tcl 8.[01] and the new <strong>Tcl_StackChannel</strong>
API for Tcl 8.2 and higher. The sockets behave exactly the same
as channels created using Tcl's built-in <strong>socket</strong>
command with additional options for controlling the SSL session.</p>

<h3><a name="COMMANDS">COMMANDS</a></h3>

<p>Typically one would use the <strong>tls::socket </strong>command
which provides compatibility with the native Tcl <strong>socket</strong>
command. In such cases <strong>tls::import</strong> should not be
used directly.</p>

<dl>
    <dt><a name="tls::init"><b>tls::init </b><i>?options?</i></a></dt>
    <dd>This routine sets the default options used by <strong>tls::socket</strong>
        and is <em>optional</em>. If you call <strong>tls::import</strong>
        directly this routine has no effect. Any of the options
        that <strong>tls::socket</strong> accepts can be set
        using this command, though you should limit your options
        to only TLS related ones.</dd>
    <dt>&nbsp;</dt>
    <dt><a name="tls::socket"><b>tls::socket </b><em>?options?
        host port</em></a></dt>
    <dt><b>tls::socket</b><em> ?-server command? ?options? port</em></dt>
    <dd>This is a helper function that utilizes the underlying
        commands (<strong>tls::import</strong>). It behaves
        exactly the same as the native Tcl <strong>socket</strong>
        command except that the options can include any of the
        applicable <a href="#tls::import"><strong>tls:import</strong></a>
        options.</dd>
    <dt>&nbsp;</dt>
    <dt><a name="tls::handshake"><strong>tls::handshake</strong> <em>channel</em></a></dt>
    <dd>Forces handshake to take place, and returns 0 if
        handshake is still in progress (non-blocking), or 1 if
        the handshake was successful. If the handshake failed
        this routine will throw an error.</dd>
    <dt>&nbsp;</dt>
    <dt><a name="tls::status"><strong>tls::status</strong> <em>channel</em></a></dt>
    <dd>Returns the current security status of a SSL channel. The
        result is a list of key value pairs describing the
        connected peer. If the result is an empty list then the
        SSL handshake has not yet completed.</dd>
</dl>

<blockquote>
    <dl>
        <dt><strong>issuer</strong> <em>dn</em></dt>
        <dd>The distinguished name (DN) of the certificate
            issuer.</dd>
        <dt><strong>subject</strong> <em>dn</em></dt>
        <dd>The distinguished name (DN) of the certificate
            subject.</dd>
        <dt><strong>notBefore</strong> <em>date</em></dt>
        <dd>The begin date for the validity of the certificate.</dd>
        <dt><strong>notAfter</strong> <em>date</em></dt>
        <dd>The expiry date for the certificate.</dd>
        <dt><strong>serial</strong> <em>n</em></dt>
        <dd>The serial number of the certificate.</dd>
        <dt><strong>cipher</strong> <em>cipher</em></dt>
        <dd>The current cipher in use between the client and
            server channels.</dd>
    </dl>
</blockquote>

<dl>
    <dt><a name="tls::import"><b>tls::import </b><i>channel
        ?options?</i></a></dt>
    <dd>SSL-enable a regular Tcl channel - it need not be a
        socket, but must provide bi-directional flow. Also
        setting session parameters for SSL handshake.</dd>
</dl>

<blockquote>
    <dl>
        <dt><strong>-cafile </strong><em>filename</em></dt>
        <dd>Provide the CA file.</dd>
        <dt>-<strong>cadir</strong> <em>dir</em></dt>
        <dd>Provide the directory containing the CA certificates.</dd>
        <dt><strong>-certfile</strong> <em>filename</em></dt>
        <dd>Provide the certificate to use.</dd>
        <dt><strong>-cipher </strong><em>string</em></dt>
        <dd>Provide the cipher suites to use. Syntax is as per
            OpenSSL.</dd>
        <dt><strong>-command</strong><em> callback</em></dt>
        <dd>This callback is invoked to pass errors, tracing
            information and to allow Tcl scripts to perform
            additional verification of the certificate, which can
            override the default validation in OpenSSL.</dd>
        <dt><strong>-keyfile</strong> <em>filename</em></dt>
        <dd>Provide the private key file. (<strong>default</strong>:
            value of -certfile)</dd>
        <dt><strong>-model</strong> <em>channel</em></dt>
        <dd>This will force this channel to share the same <em><strong>SSL_CTX</strong></em>
            structure as the specified <em>channel</em>, and
            therefore share callbacks etc.</dd>
        <dt><strong>-request </strong><em>bool</em></dt>
        <dd>Request a certificate from peer during SSL handshake.
            (<strong>default</strong>: <em>true</em>)</dd>
        <dt><strong>-require</strong> <em>bool</em></dt>
        <dd>Require a valid certificate from peer during SSL
            handshake. If this is set to true then <strong>-request</strong>
            must also be set to true. (<strong>default</strong>: <em>false</em>)</dd>
        <dt><strong>-server</strong> <em>bool</em></dt>
        <dd>Handshake as server if true, else handshake as
            client.(<strong>default</strong>: <em>false</em>) <em>[Not
            available to tls::socket]</em></dd>
        <dt><strong>-ssl2</strong> <em>bool</em></dt>
        <dd>Enable use of SSL v2. (<strong>default</strong>: <em>true</em>
            unless -DNO_PATENTS was specified in build)</dd>
        <dt><strong>-ssl3 </strong><em>bool</em></dt>
        <dd>Enable use of SSL v3. (<strong>default</strong>: <em>true</em>)</dd>
        <dt>-<strong>tls1</strong> <em>bool</em></dt>
        <dd>Enable use of TLS v1. (<strong>default</strong>: <em>false</em>)</dd>
    </dl>
</blockquote>

<dl>
    <dt><a name="tls::ciphers protocol ?verbose?"><strong>tls::ciphers</strong>
        <em>protocol ?verbose?</em></a></dt>
    <dd>Returns list of supported ciphers based on the <em>protocol</em>
        you supply, which must be one of <em>ssl2, ssl3, or tls1</em>.
        If <em>verbose</em> is specified as true then a verbose,
        semi-human readable list is returned providing additional
        information on the nature of the cipher support. In each
        case the result is a Tcl list.</dd>
</dl>

<h3><a name="CONFIGURATION OPTIONS">CONFIGURATION OPTIONS</a></h3>

<p>In addition to the options listed above you can set the <strong>tls::debug</strong>
flag to a non-zero value to see the output from the default
command callback (<strong>tls::callback</strong>) which shows the
progression of the SSL handshake. Setting this value to greated
than 1 will cause the default verify method in <strong>tls::callback</strong>
to always accept the certificate, even if it is invalid.</p>

<p>In a real-world deployment you should substitute your own
callback in place of <strong>tls::callback</strong>, via the <em>-command
</em>option to <strong>tls::socket</strong> or <strong>tls::import</strong>.</p>

<p>When the TLS layer needs to obtain a password, typically for a
certificate, the software will invoke a Tcl command called <strong>tls::password</strong>,
which should return a string which represents the password to be
used. A default implementation is provided, which simply returns<em>
&quot;secret&quot;</em> - you should redefine this procedure
after issuing the <em>package require tls</em>.</p>

<h3><a name="HTTPS EXAMPLE">HTTPS EXAMPLE</a></h3>

<p>This example requires a patch to the <strong>http</strong>
module that ships with Tcl - this patch has been submitted for
inclusion in Tcl 8.2.1, but is also provided in the tls directory
if needed. A sample server.pem is provided with the TLS release,
courtesy of the <strong>OpenSSL</strong> project.</p>

<pre><code>package require http
package require tls

http::register https 443 [list ::tls::socket -require 1 -cafile ./server.pem]

set tok [http::geturl https://developer.netscape.com/]
</code></pre>

<h3><a name="SPECIAL CONSIDERATIONS">SPECIAL CONSIDERATIONS</a></h3>

<p>The capabilities of this package can vary enormously based
upon how your OpenSSL library was configured and built. At the
most macro-level OpenSSL supports a &quot;no patents&quot; build,
which disables RSA, IDEA, RC(2,4,5) and SSL2 - if your OpenSSL is
configured this way then you will need to build TLS with the
-DNO_PATENTS option - and the resultant module will function
correctly and also support ADH certificate-less encryption,
however you will be unable to utilize this to speak to normal Web
Servers, which typically require RSA support. Please see <a
href="http://www.openssl.org/">http://www.openssl.org/</a> for
more information on the whole issue of patents and US export
restrictions. </p>

<h3><a name="SEE ALSO">SEE ALSO</a></h3>

<p><strong>socket</strong>, <strong>fileevent, </strong><a
href="http://www.openssl.org/"><strong>OpenSSL</strong></a></p>

<hr>

<pre>
Copyright � 1999 Matt Newman.</pre>
</body>
</html>








Added tls.tcl version [195c4c676f].









































































































































































































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#
# Copyright (C) 1997-1999 Matt Newman <[email protected]>
#
# $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tls.tcl,v 1.1.1.1 2000/01/19 22:10:58 aborr Exp $
#
namespace eval tls {
    variable logcmd tclLog
    variable debug 0
 
    # Default flags passed to tls::import
    variable defaults {}

    # Maps UID to Server Socket
    variable srvmap
    variable srvuid 0
}
#
# Backwards compatibility, also used to set the default
# context options
#
proc tls::init {args} {
    variable defaults

    set defaults $args
}
#
# Helper function - behaves exactly as the native socket command.
#
proc tls::socket {args} {
    set idx [lsearch $args -server]
    if {$idx != -1} {
	set server 1
	set callback [lindex $args [expr {$idx+1}]]
	set args [lreplace $args $idx [expr {$idx+1}]]

	set usage "wrong # args: should be \"tls::socket -server command ?options? port\""
	set options "-cadir, -cafile, -certfile, -cipher, -keyfile, -myaddr, -request, -require, -ssl2, -ssl3, or -tls1"
    } else {
	set server 0

	set usage "wrong # args: should be \"tls::socket ?options? host port\""
	set options "-async, -cadir, -cafile, -certfile, -cipher, -keyfile, -myaddr, -myport, -request, -require, -ssl2, -ssl3, or -tls1"
    }
    set argc [llength $args]
    set sopts {}
    set iopts [concat [list -server $server] ${tls::defaults}]	;# Import options

    for {set idx 0} {$idx < $argc} {incr idx} {
	set arg [lindex $args $idx]
	switch -glob -- $server,$arg {
	0,-myport	-
	*,-myaddr	{lappend sopts $arg [lindex $args [incr idx]]}
	0,-async	{lappend sopts $arg}
	*,-cadir	-
	*,-cafile	-
	*,-certfile	-
	*,-keyfile	-
	*,-command	-
	*,-request	-
	*,-require	-
	*,-ssl2		-
	*,-ssl3		-
	*,-tls1		{lappend iopts $arg [lindex $args [incr idx]]}
	-*		{return -code error "bad option \"$arg\": must be one of $options"}
	default	{break}
	}
    }
    if {$server} {
	if {($idx + 1) != $argc} {
	    return -code error $usage
	}
	set uid [incr ::tls::srvuid]

	set port [lindex $args [expr {$argc-1}]]
	lappend sopts $port
	set sopts [linsert $sopts 0 -server [list tls::_accept $iopts $callback]]
	#set sopts [linsert $sopts 0 -server [list tls::_accept $uid $callback]]
    } else {
	if {($idx + 2) != $argc} {
	    return -code error $usage
	}
	set host [lindex $args [expr {$argc-2}]]
	set port [lindex $args [expr {$argc-1}]]
	lappend sopts $host $port
    }
    #
    # Create TCP/IP socket
    #
    set chan [eval ::socket $sopts]
    if {!$server && [catch {
	#
	# Push SSL layer onto socket
	#
	eval [list tls::import] $chan $iopts
    } err]} {
	set info ${::errorInfo}
	catch {close $chan}
	return -code error -errorinfo $info $err
    }
    return $chan
}
proc tls::_accept { iopts callback chan ipaddr port } {
    log 2 [list tls::_accept $iopts $callback $chan $ipaddr $port]

    set chan [eval [list tls::import $chan] $iopts]

    lappend callback $chan $ipaddr $port
    uplevel #0 $callback
}
#
# Sample callback for hooking: -
#
# error
# info
# password
# verify
#
proc tls::callback {option args} {
    variable debug

    #log 2 [concat $option $args]

    switch -- $option {
    "error"	{
	foreach {chan msg} $args break

	log 0 "TLS/$chan: error: $msg"
    }
    "verify"	{
	# poor man's lassign
	foreach {chan depth cert rc err} $args break

	array set c $cert

	if {$rc != "1"} {
	    log 1 "TLS/$chan: verify/$depth: Bad Cert: $err (rc = $rc)"
	} else {
	    log 2 "TLS/$chan: verify/$depth: $c(subject)"
	}
	if {$debug > 0} {
	    return 1;	# FORCE OK
	} else {
	    return $rc
	}
    }
    "info"	{
	# poor man's lassign
	foreach {chan major minor state msg} $args break

	if {$msg != ""} {
	    append state ": $msg"
	}
	# For tracing
	upvar #0 tls::$chan cb
	set cb($major) $minor

	log 2 "TLS/$chan: $major/$minor: $state"
    }
    default	{
	return -code error "bad option \"$option\": must be one of error, info, or verify"
    }
    };#sw
}

proc tls::xhandshake {chan} {
    upvar #0 tls::$chan cb

    if {[info exists cb(handshake)] && \
	$cb(handshake) == "done"} {
	return 1
    }
    while {1} {
	vwait tls::${chan}(handshake)
	if {![info exists cb(handshake)]} {
	    return 0
	}
	if {$cb(handshake) == "done"} {
	    return 1
	}
    }
}
proc tls::password {} {
    log 0 "TLS/Password: did you forget to set your passwd!"
    # Return the worlds best kept secret password.
    return "secret"
}
proc tls::log {level msg} {
    variable debug
    variable logcmd

    if {$level > $debug || $logcmd == ""} {
	return
    }
    set cmd $logcmd
    lappend cmd $msg
    uplevel #0 $cmd
}








Added tlsBIO.c version [089891ecdb].







































































































































































































































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/*
 * Copyright (C) 1997-1999 Matt Newman <[email protected]>
 *
 * $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tlsBIO.c,v 1.1.1.1 2000/01/19 22:10:58 aborr Exp $
 *
 * Provides BIO layer to interface openssl to Tcl.
 */

#include "tlsInt.h"

/*
 * Forward declarations
 */

static int BioWrite	_ANSI_ARGS_ ((BIO *h, char *buf, int num));
static int BioRead	_ANSI_ARGS_ ((BIO *h, char *buf, int num));
static int BioPuts	_ANSI_ARGS_ ((BIO *h, char *str));
static long BioCtrl	_ANSI_ARGS_ ((BIO *h, int cmd, long arg1, char *ptr));
static int BioNew	_ANSI_ARGS_ ((BIO *h));
static int BioFree	_ANSI_ARGS_ ((BIO *h));


static BIO_METHOD BioMethods = {
    BIO_TYPE_TCL, "tcl",
    BioWrite,
    BioRead,
    BioPuts,
    NULL,	/* BioGets */
    BioCtrl,
    BioNew,
    BioFree,
};

BIO *
BIO_new_tcl(statePtr, flags)
    State *statePtr;
    int flags;
{
    BIO *bio;

    bio = BIO_new(&BioMethods);
    bio->ptr = (char*)statePtr;
    bio->init = 1;
    bio->shutdown = flags;

    return bio;
}

BIO_METHOD *
BIO_s_tcl()
{
    return &BioMethods;
}

static int
BioWrite (bio, buf, bufLen)
    BIO *bio;
    char *buf;
    int bufLen;
{
    Tcl_Channel chan = Tls_GetParent((State*)bio->ptr);
    int ret;

    dprintf(stderr,"\nBioWrite(0x%x, <buf>, %d) [0x%x]", bio, bufLen, chan);

    ret = Tcl_Write( chan, buf, bufLen);

    dprintf(stderr,"\n[0x%x] BioWrite(%d) -> %d [%d.%d]", chan, bufLen, ret,
		Tcl_Eof( chan), Tcl_GetErrno());

    BIO_clear_flags(bio, BIO_FLAGS_WRITE|BIO_FLAGS_SHOULD_RETRY);

    if (ret == 0) {
	if (!Tcl_Eof( chan)) {
	    BIO_set_retry_write(bio);
	    ret = -1;
	}
    }
    if (BIO_should_read(bio))
	BIO_set_retry_read(bio);
    return ret;
}

static int
BioRead (bio, buf, bufLen)
    BIO *bio;
    char *buf;
    int bufLen;
{
    Tcl_Channel chan = Tls_GetParent((State*)bio->ptr);
    int ret = 0;

    dprintf(stderr,"\nBioRead(0x%x, <buf>, %d) [0x%x]", bio, bufLen, chan);

    if (buf == NULL) return 0;

    ret = Tcl_Read( chan, buf, bufLen);

    dprintf(stderr,"\n[0x%x] BioRead(%d) -> %d [%d.%d]", chan, bufLen, ret,
	Tcl_Eof(chan), Tcl_GetErrno());

    BIO_clear_flags(bio, BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY);

    if (ret == 0) {
	if (!Tcl_Eof( chan)) {
	    BIO_set_retry_read(bio);
	    ret = -1;
	}
    }
    if (BIO_should_write(bio))
	BIO_set_retry_write(bio);
    return ret;
}

static int
BioPuts	(bio, str)
    BIO *bio;
    char *str;
{
    return BioWrite( bio, str, strlen(str));
}

static long
BioCtrl	(bio, cmd, num, ptr)
    BIO *bio;
    int cmd;
    long num;
    char *ptr;
{
    Tcl_Channel chan = Tls_GetParent((State*)bio->ptr);
    long ret = 1;
    int *ip;

    dprintf(stderr,"\nBioCtrl(0x%x, 0x%x, 0x%x, 0x%x)", bio, cmd, num, ptr);

    switch (cmd) {
    case BIO_CTRL_RESET:
	num = 0;
    case BIO_C_FILE_SEEK:
    case BIO_C_FILE_TELL:
	ret = 0;
	break;
    case BIO_CTRL_INFO:
	ret = 1;
	break;
    case BIO_C_SET_FD:
	BioFree(bio);
	/* Sets State* */
	bio->ptr = *((char **)ptr);
	bio->shutdown = (int)num;
	bio->init = 1;
	break;
    case BIO_C_GET_FD:
	if (bio->init) {
	    ip=(int *)ptr;
	    if (ip != NULL) *ip=bio->num;
		ret=bio->num;
	} else {
	    ret= -1;
	}
	break;
    case BIO_CTRL_GET_CLOSE:
	ret=bio->shutdown;
	break;
    case BIO_CTRL_SET_CLOSE:
	bio->shutdown=(int)num;
	break;
    case BIO_CTRL_EOF:
	dprintf(stderr, "BIO_CTRL_EOF\n");
	ret = Tcl_Eof( chan);
	break;
    case BIO_CTRL_PENDING:
	if (Tcl_InputBuffered(chan))
	    ret = 1;
	else
	    ret = 0;
	dprintf(stderr, "BIO_CTRL_PENDING(%d)\n", ret);
	break;
    case BIO_CTRL_WPENDING:
	ret=0;
	break;
    case BIO_CTRL_DUP:
	break;
    case BIO_CTRL_FLUSH:
	dprintf(stderr, "BIO_CTRL_FLUSH\n");
	if (Tcl_Flush( chan) == TCL_OK)
	    ret=1;
	else
	    ret=-1;
	break;
    default:
	ret=0;
	break;
    }
    return(ret);
}

static int
BioNew	(bio)
    BIO *bio;
{
    bio->init = 0;
    bio->num = 0;
    bio->ptr = NULL;
    bio->flags = 0;

    return 1;
}

static int
BioFree	(bio)
    BIO *bio;
{
    if (bio == NULL)
	return 0;

    if (bio->shutdown) {
	if (bio->init) {
	    /*shutdown(bio->num, 2) */
	    /*closesocket(bio->num) */
	}
	bio->init = 0;
	bio->flags = 0;
	bio->num = 0;
    }
    return 1;
}








Added tlsIO.c version [f1ba907f62].
















































































































































































































































































































































































































































































































































































































































































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/*
 * Copyright (C) 1997-1999 Matt Newman <[email protected]>
 *
 * $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tlsIO.c,v 1.1.1.1 2000/01/19 22:10:58 aborr Exp $
 *
 * TLS (aka SSL) Channel - can be layered on any bi-directional
 * Tcl_Channel (Note: Requires Trf Core Patch)
 *
 * This was built from scratch based upon observation of OpenSSL 0.9.2B
 *
 * Addition credit is due for Andreas Kupries ([email protected]), for
 * providing the Tcl_ReplaceChannel mechanism and working closely with me
 * to enhance it to support full fileevent semantics.
 *
 * Also work done by the follow people provided the impetus to do this "right":
 *	tclSSL (Colin McCormack, Shared Technology)
 *	SSLtcl (Peter Antman)
 *
 */

#include "tlsInt.h"

/*
 * External functions
 */

/*
 * Local Defines
 */

/*
 * Forward declarations
 */

static int	BlockModeProc _ANSI_ARGS_((ClientData instanceData, int mode));
static int	CloseProc _ANSI_ARGS_ ((ClientData instanceData, Tcl_Interp *interp));
static int	InputProc _ANSI_ARGS_((ClientData instanceData,
			    char *buf, int bufSize, int *errorCodePtr));
static int	OutputProc _ANSI_ARGS_((ClientData instanceData,
			    char *buf, int toWrite, int *errorCodePtr));
static int	GetOptionProc _ANSI_ARGS_ ((ClientData instanceData,
			    Tcl_Interp *interp, char *optionName, Tcl_DString *dsPtr));
static void	WatchProc _ANSI_ARGS_((ClientData instanceData, int mask));
static int	GetHandleProc _ANSI_ARGS_ ((ClientData instanceData,
			    int direction, ClientData *handlePtr));
static void	ChannelHandler _ANSI_ARGS_ ((ClientData clientData, int mask));
static void	ChannelHandlerTimer _ANSI_ARGS_ ((ClientData clientData));

/*
 * This structure describes the channel type structure for TCP socket
 * based IO:
 */

static Tcl_ChannelType tlsChannelType = {
    "tls",		/* Type name. */
    BlockModeProc,	/* Set blocking/nonblocking mode.*/
    CloseProc,		/* Close proc. */
    InputProc,		/* Input proc. */
    OutputProc,		/* Output proc. */
    NULL,		/* Seek proc. */
    NULL,		/* Set option proc. */
    GetOptionProc,	/* Get option proc. */
    WatchProc,		/* Initialize notifier. */
    GetHandleProc,	/* Get file handle out of channel. */
};

Tcl_ChannelType *Tls_ChannelType()
{
    return &tlsChannelType;
}

/*
 *-------------------------------------------------------------------
 *
 * BlockModeProc --
 *
 *	This procedure is invoked by the generic IO level
 *       to set blocking and nonblocking modes
 * Results:
 *	0 if successful, errno when failed.
 *
 * Side effects:
 *	Sets the device into blocking or nonblocking mode.
 *
 *-------------------------------------------------------------------
 */

static int
BlockModeProc(ClientData instanceData,	/* Socket state. */
                 int mode)			/* The mode to set. Can be one of
						* TCL_MODE_BLOCKING or
						* TCL_MODE_NONBLOCKING. */
{
    State *statePtr = (State *) instanceData;

    if (mode == TCL_MODE_NONBLOCKING) {
	statePtr->flags |= TLS_TCL_ASYNC;
    } else {
	statePtr->flags &= ~(TLS_TCL_ASYNC);
    }
    return Tcl_SetChannelOption(statePtr->interp, Tls_GetParent(statePtr),
		"-blocking", (mode == TCL_MODE_NONBLOCKING) ? "0" : "1");
}

/*
 *-------------------------------------------------------------------
 *
 * CloseProc --
 *
 *	This procedure is invoked by the generic IO level to perform
 *	channel-type-specific cleanup when a SSL socket based channel
 *	is closed.
 *
 *	Note: we leave the underlying socket alone, is this right?
 *
 * Results:
 *	0 if successful, the value of Tcl_GetErrno() if failed.
 *
 * Side effects:
 *	Closes the socket of the channel.
 *
 *-------------------------------------------------------------------
 */
static int
CloseProc(ClientData instanceData,	/* The socket to close. */
             Tcl_Interp *interp)	/* For error reporting - unused. */
{
    State *statePtr = (State *) instanceData;
#if TCL_MAJOR_VERSION == 8 && TCL_MINOR_VERSION < 2
    Tcl_Channel parent = Tls_GetParent(statePtr);
#else
    Tcl_Channel parent = statePtr->self; /* 'self' already refers to our parent */
#endif

    dprintf(stderr,"\nCloseProc(0x%x)", statePtr);
    /*
     * Remove event handler to underlying channel, this could
     * be because we are closing for real, or being "unstacked".
     */

    Tcl_DeleteChannelHandler( parent,
	ChannelHandler, (ClientData) statePtr);

    if (statePtr->timer != (Tcl_TimerToken)NULL) {
	Tcl_DeleteTimerHandler (statePtr->timer);
	statePtr->timer = (Tcl_TimerToken)NULL;
    }

    Tcl_EventuallyFree( (ClientData)statePtr, Tls_Free);
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------
 *
 * InputProc --
 *
 *	This procedure is invoked by the generic IO level
 *       to read input from a SSL socket based channel.
 *
 * Results:
 *	The number of bytes read is returned or -1 on error. An output
 *	argument contains the POSIX error code on error, or zero if no
 *	error occurred.
 *
 * Side effects:
 *	Reads input from the input device of the channel.
 *
 *-------------------------------------------------------------------
 */

static int
InputProc(ClientData instanceData,	/* Socket state. */
             char *buf,			/* Where to store data read. */
             int bufSize,		/* How much space is available
                                         * in the buffer? */
             int *errorCodePtr)		/* Where to store error code. */
{
    State *statePtr = (State *) instanceData;
    int bytesRead;			/* How many bytes were read? */

    *errorCodePtr = 0;

    dprintf(stderr,"\nBIO_read(%d)", bufSize);

    if (!SSL_is_init_finished(statePtr->ssl)) {
	bytesRead = Tls_WaitForConnect(statePtr, errorCodePtr);
	if (bytesRead <= 0) {
	    goto input;
	}
    }
    if (statePtr->flags & TLS_TCL_INIT) {
	statePtr->flags &= ~(TLS_TCL_INIT);
    }
    bytesRead = BIO_read(statePtr->bio, buf, bufSize);
    dprintf(stderr,"\nBIO_read -> %d", bytesRead);

    if (bytesRead < 0) {
	int err = SSL_get_error(statePtr->ssl, bytesRead);

	if (err == SSL_ERROR_SSL) {
	    Tls_Error(statePtr, SSL_ERROR(statePtr->ssl, bytesRead));
	    *errorCodePtr = ECONNABORTED;
	    goto input;
	} else if (BIO_should_retry(statePtr->bio)) {
	    dprintf(stderr,"RE! ");
	    *errorCodePtr = EAGAIN;
	    goto input;
	}
	if (Tcl_GetErrno() == ECONNRESET) {
	    /* Soft EOF */
	    bytesRead = 0;
	    goto input;
	} else {
	    *errorCodePtr = Tcl_GetErrno();
	    goto input;
	}
    }
input:
    dprintf(stderr, "\nInput(%d) -> %d [%d]", bufSize, bytesRead, *errorCodePtr);
    return bytesRead;
}

/*
 *-------------------------------------------------------------------
 *
 * OutputProc --
 *
 *	This procedure is invoked by the generic IO level
 *       to write output to a SSL socket based channel.
 *
 * Results:
 *	The number of bytes written is returned. An output argument is
 *	set to a POSIX error code if an error occurred, or zero.
 *
 * Side effects:
 *	Writes output on the output device of the channel.
 *
 *-------------------------------------------------------------------
 */

static int
OutputProc(ClientData instanceData,	/* Socket state. */
              char *buf,			/* The data buffer. */
              int toWrite,		/* How many bytes to write? */
              int *errorCodePtr)	/* Where to store error code. */
{
    State *statePtr = (State *) instanceData;
    int written, err;

    *errorCodePtr = 0;

    dprintf(stderr,"\nBIO_write(%d)", toWrite);

    if (!SSL_is_init_finished(statePtr->ssl)) {
	written = Tls_WaitForConnect(statePtr, errorCodePtr);
	if (written <= 0) {
	    goto output;
	}
    }
    if (statePtr->flags & TLS_TCL_INIT) {
	statePtr->flags &= ~(TLS_TCL_INIT);
    }
    if (toWrite == 0) {
	dprintf(stderr, "zero-write\n");
	BIO_flush(statePtr->bio);
	written = 0;
	goto output;
    } else {
	written = BIO_write(statePtr->bio, buf, toWrite);
	dprintf(stderr,"\nBIO_write(%d) -> [%d]", toWrite, written);
    }
    if (written < 0 || written == 0) {
	switch ((err = SSL_get_error(statePtr->ssl, written))) {
	case SSL_ERROR_NONE:
	    if (written <= 0) {
		written = 0;
		goto output;
	    }
	    break;
	case SSL_ERROR_WANT_WRITE:
	    dprintf(stderr,"write W BLOCK\n");
	    break;
	case SSL_ERROR_WANT_READ:
	    dprintf(stderr,"write R BLOCK\n");
	    break;
	case SSL_ERROR_WANT_X509_LOOKUP:
	    dprintf(stderr,"write X BLOCK\n");
	    break;
	case SSL_ERROR_ZERO_RETURN:
	    dprintf(stderr,"closed\n");
	    written = 0;
	    goto output;
	case SSL_ERROR_SYSCALL:
	    *errorCodePtr = Tcl_GetErrno();
	    dprintf(stderr,"[%d] syscall errr: %d\n", written, Tcl_GetErrno());
	    written = -1;
	    goto output;
	case SSL_ERROR_SSL:
	    Tls_Error(statePtr, SSL_ERROR(statePtr->ssl, written));
	    *errorCodePtr = ECONNABORTED;
	    written = -1;
	    goto output;
	default:
	    dprintf(stderr,"unknown err: %d\n", err);
	}
    }
output:
    dprintf(stderr, "\nOutput(%d) -> %d", toWrite, written);
    return written;
}

/*
 *-------------------------------------------------------------------
 *
 * GetOptionProc --
 *
 *	Computes an option value for a SSL socket based channel, or a
 *	list of all options and their values.
 *
 *	Note: This code is based on code contributed by John Haxby.
 *
 * Results:
 *	A standard Tcl result. The value of the specified option or a
 *	list of all options and	their values is returned in the
 *	supplied DString.
 *
 * Side effects:
 *	None.
 *
 *-------------------------------------------------------------------
 */
static int
GetOptionProc(ClientData instanceData,	/* Socket state. */
                 Tcl_Interp *interp,		/* For errors - can be NULL. */
                 char *optionName,		/* Name of the option to
                                                 * retrieve the value for, or
                                                 * NULL to get all options and
                                                 * their values. */
                 Tcl_DString *dsPtr)	         /* Where to store the computed value
                                                  * initialized by caller. */
{
    State *statePtr = (State *) instanceData;
    size_t len = 0;

    if (optionName != (char *) NULL) {
        len = strlen(optionName);
    }
#if 0
    if ((len == 0) ||
        ((len > 1) && (optionName[1] == 'c') &&
         (strncmp(optionName, "-cipher", len) == 0))) {
        if (len == 0) {
            Tcl_DStringAppendElement(dsPtr, "-cipher");
        }
        Tcl_DStringAppendElement(dsPtr, SSL_get_cipher(statePtr->ssl));
        if (len) {
            return TCL_OK;
        }
    }
#endif
    return TCL_OK;
}

/*
 *-------------------------------------------------------------------
 *
 * WatchProc --
 *
 *	Initialize the notifier to watch Tcl_Files from this channel.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Sets up the notifier so that a future event on the channel
 *	will be seen by Tcl.
 *
 *-------------------------------------------------------------------
 */

static void
WatchProc(ClientData instanceData,	/* The socket state. */
             int mask)			/* Events of interest; an OR-ed
                                         * combination of TCL_READABLE,
                                         * TCL_WRITABLE and TCL_EXCEPTION. */
{
    State *statePtr = (State *) instanceData;

    if (mask == statePtr->watchMask)
	return;

    if (statePtr->watchMask) {
	/*
	 * Remove event handler to underlying channel, this could
	 * be because we are closing for real, or being "unstacked".
	 */
	Tcl_DeleteChannelHandler( Tls_GetParent(statePtr), ChannelHandler, (ClientData) statePtr);
    }
    statePtr->watchMask = mask;
    if (statePtr->watchMask) {
	/* Setup active monitor for events on underlying Channel */
	Tcl_CreateChannelHandler( Tls_GetParent(statePtr), statePtr->watchMask,
				ChannelHandler, (ClientData) statePtr);
    }
}

/*
 *-------------------------------------------------------------------
 *
 * GetHandleProc --
 *
 *	Called from Tcl_GetChannelFile to retrieve o/s file handler
 *	from the SSL socket based channel.
 *
 * Results:
 *	The appropriate Tcl_File or NULL if not present. 
 *
 * Side effects:
 *	None.
 *
 *-------------------------------------------------------------------
 */
static int
GetHandleProc(ClientData instanceData,	/* The socket state. */
                 int direction,		/* Which Tcl_File to retrieve? */
                 ClientData *handlePtr)	/* Where to store the handle.  */
{
    State *statePtr = (State *) instanceData;

    return Tcl_GetChannelHandle (Tls_GetParent(statePtr), direction, handlePtr);
}

/*
 *------------------------------------------------------*
 *
 *      ChannelHandler --
 *
 *      ------------------------------------------------*
 *      Handler called by Tcl as a result of
 *      Tcl_CreateChannelHandler - to inform us of activity
 *      on the underlying channel.
 *      ------------------------------------------------*
 *
 *      Sideeffects:
 *              May generate subsequent calls to
 *              Tcl_NotifyChannel.
 *
 *      Result:
 *              None.
 *
 *------------------------------------------------------*
 */

static void
ChannelHandler (clientData, mask)
ClientData     clientData;
int            mask;
{
    State *statePtr = (State *) clientData;

dprintf(stderr, "HANDLER(0x%x)\n", mask);
    Tcl_Preserve( (ClientData)statePtr);

    if (mask & TCL_READABLE) {
	BIO_set_flags(statePtr->p_bio, BIO_FLAGS_READ);
    } else {
	BIO_clear_flags(statePtr->p_bio, BIO_FLAGS_READ);
    }

    if (mask & TCL_WRITABLE) {
	BIO_set_flags(statePtr->p_bio, BIO_FLAGS_WRITE);
    } else {
	BIO_clear_flags(statePtr->p_bio, BIO_FLAGS_WRITE);
    }

    mask = 0;
    if (BIO_wpending(statePtr->bio)) {
	mask |= TCL_WRITABLE;
    }
    if (BIO_pending(statePtr->bio)) {
	mask |= TCL_READABLE;
    }
    Tcl_NotifyChannel(statePtr->self, mask);

    if (statePtr->timer != (Tcl_TimerToken)NULL) {
	Tcl_DeleteTimerHandler(statePtr->timer);
	statePtr->timer = (Tcl_TimerToken)NULL;
    }
    if ((mask & TCL_READABLE) && Tcl_InputBuffered (statePtr->self) > 0) {
	/*
	 * Data is waiting, flush it out in short time
	 */
	statePtr->timer = Tcl_CreateTimerHandler (TLS_TCL_DELAY, ChannelHandlerTimer,
					   (ClientData) statePtr);
    }
    Tcl_Release( (ClientData)statePtr);
}

/*
 *------------------------------------------------------*
 *
 *	ChannelHandlerTimer --
 *
 *	------------------------------------------------*
 *	Called by the notifier (-> timer) to flush out
 *	information waiting in channel buffers.
 *	------------------------------------------------*
 *
 *	Sideeffects:
 *		As of 'ChannelHandler'.
 *
 *	Result:
 *		None.
 *
 *------------------------------------------------------*
 */

static void
ChannelHandlerTimer (clientData)
ClientData clientData; /* Transformation to query */
{
    State *statePtr = (State *) clientData;
    int mask = 0;

    statePtr->timer = (Tcl_TimerToken) NULL;

    if (BIO_wpending(statePtr->bio)) {
	mask |= TCL_WRITABLE;
    }
    if (BIO_pending(statePtr->bio)) {
	mask |= TCL_READABLE;
    }
    Tcl_NotifyChannel(statePtr->self, mask);
}

/*
 *------------------------------------------------------*
 *
 *	Tls_WaitForConnect --
 *
 *	Sideeffects:
 *		Issues SSL_accept or SSL_connect
 *
 *	Result:
 *		None.
 *
 *------------------------------------------------------*
 */
int
Tls_WaitForConnect( statePtr, errorCodePtr)
    State *statePtr;
    int *errorCodePtr;		/* Where to store error code. */
{
    int err;

    dprintf(stderr,"\nWaitForConnect(0x%x)", statePtr);

    for (;;) {
	/* Not initialized yet! */
	if (statePtr->flags & TLS_TCL_SERVER) {
	    err = SSL_accept(statePtr->ssl);
	} else {
	    err = SSL_connect(statePtr->ssl);
	}
	/*SSL_write(statePtr->ssl, (char*)&err, 0);	HACK!!! */
	if (err > 0)
	    BIO_flush(statePtr->bio);

	if (err <= 0) {
	    int rc = SSL_get_error(statePtr->ssl, err);

	    if (rc == SSL_ERROR_SSL) {
		Tls_Error(statePtr, (char*)ERR_reason_error_string(ERR_get_error()));
		*errorCodePtr = ECONNABORTED;
		return -1;
	    } else if (BIO_should_retry(statePtr->bio)) {
		if (statePtr->flags & TLS_TCL_ASYNC) {
		    dprintf(stderr,"E! ");
		    *errorCodePtr = EAGAIN;
		    return -1;
		} else {
		    continue;
		}
	    } else if (err == 0) {
		dprintf(stderr,"CR! ");
		*errorCodePtr = ECONNRESET;
		return -1;
	    }
	    if (statePtr->flags & TLS_TCL_SERVER) {
		err = SSL_get_verify_result(statePtr->ssl);
		if (err != X509_V_OK) {
		    Tls_Error(statePtr, (char*)X509_verify_cert_error_string(err));
		    *errorCodePtr = ECONNABORTED;
		    return -1;
		}
	    }
	    *errorCodePtr = Tcl_GetErrno();
	    dprintf(stderr,"ERR(%d, %d) ", rc, *errorCodePtr);
	    return -1;
	}
	dprintf(stderr,"R0! ");
	return 1;
    }
}

Tcl_Channel
Tls_GetParent( statePtr )
    State *statePtr;
{
#if TCL_MAJOR_VERSION == 8 && TCL_MINOR_VERSION < 2
    return statePtr->parent;
#else
    /* The reason for the existence of this procedure is
     * the fact that stacking a transform over another
     * transform will leave our internal pointer unchanged,
     * and thus pointing to the new transform, and not the
     * Channel structure containing the saved state of this
     * transform. This is the price to pay for leaving
     * Tcl_Channel references intact. The only other solution
     * is an extension of Tcl_ChannelType with another driver
     * procedure to notify a Channel about the (un)stacking.
     *
     * It walks the chain of Channel structures until it
     * finds the one pointing having 'ctrl' as instanceData
     * and then returns the superceding channel to that. (AK)
     */
 
  Tcl_Channel self = statePtr->self;
  Tcl_Channel next;

  while ((ClientData) statePtr != Tcl_GetChannelInstanceData (self)) {
    next = Tcl_GetStackedChannel (self);
    if (next == (Tcl_Channel) NULL) {
      /* 09/24/1999 Unstacking bug, found by Matt Newman <[email protected]>.
       *
       * We were unable to find the channel structure for this
       * transformation in the chain of stacked channel. This
       * means that we are currently in the process of unstacking
       * it *and* there were some bytes waiting which are now
       * flushed. In this situation the pointer to the channel
       * itself already refers to the parent channel we have to
       * write the bytes into, so we return that.
       */
      return statePtr->self;
    }
    self = next;
  }

  return Tcl_GetStackedChannel (self);
#endif
}








Added tlsInt.h version [8ab4c9a90a].





























































































































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/*
 * Copyright (C) 1997-1999 Matt Newman <[email protected]>
 *
 * $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tlsInt.h,v 1.1.1.1 2000/01/19 22:10:58 aborr Exp $
 *
 * TLS (aka SSL) Channel - can be layered on any bi-directional
 * Tcl_Channel (Note: Requires Trf Core Patch)
 *
 * This was built from scratch based upon observation of OpenSSL 0.9.2B
 *
 * Addition credit is due for Andreas Kupries ([email protected]), for
 * providing the Tcl_ReplaceChannel mechanism and working closely with me
 * to enhance it to support full fileevent semantics.
 *
 * Also work done by the follow people provided the impetus to do this "right":-
 *	tclSSL (Colin McCormack, Shared Technology)
 *	SSLtcl (Peter Antman)
 *
 */
#ifndef _TSLINT_H
#define _TLSINT_H

#include "tls.h"
#include <errno.h>

#ifdef NO_PATENTS
#define NO_IDEA
#define NO_RC2
#define NO_RC4
#define NO_RC5
#define NO_RSA
#define NO_SSL2
#endif

#include <openssl/ssl.h>

#ifdef TCL_STORAGE_CLASS
# undef TCL_STORAGE_CLASS
#endif
#ifdef BUILD_tls
# define TCL_STORAGE_CLASS DLLEXPORT
#else
# define TCL_STORAGE_CLASS DLLIMPORT
#endif
 
#ifndef ECONNABORTED
#define ECONNABORTED	130	/* Software caused connection abort */
#endif
#ifndef ECONNRESET
#define ECONNRESET	131	/* Connection reset by peer */
#endif

#ifdef DEBUG
#define dprintf fprintf
#else
#define dprintf if (0) fprintf
#endif

#define SSL_ERROR(ssl,err)	\
	    ((char*)ERR_reason_error_string(SSL_get_error((ssl),(err))))
/*
 * OpenSSL BIO Routines
 */
#define BIO_TYPE_TCL	(19|0x0400)

/*
 * Defines for State.flags
 */
#define TLS_TCL_ASYNC	(1<<0)	/* non-blocking mode */
#define TLS_TCL_SERVER	(1<<1)	/* Server-Side */
#define TLS_TCL_INIT	(1<<2)	/* Initializing connection */
#define TLS_TCL_DEBUG	(1<<3)	/* Show debug tracing */

#define TLS_TCL_DELAY (5)

/*
 * This structure describes the per-instance state
 * of an ssl channel.
 *
 * The SSL processing context is maintained here, in the ClientData
 */
typedef struct State {
    Tcl_Channel self;	/* this socket channel */
#if TCL_MAJOR_VERSION == 8 && TCL_MINOR_VERSION < 2
    Tcl_Channel parent;	/* underlying channel */
#endif
    Tcl_TimerToken timer;

    int flags;		/* currently only CHANNEL_ASYNC */
    int watchMask;	/* current WatchProc mask */
    int mode;		/* current mode of parent channel */

    Tcl_Interp *interp;	/* interpreter in which this resides */
    Tcl_Obj *callback;	/* script called for tracing, verifying and errors */

    int vflags;		/* verify flags */
    SSL *ssl;		/* Struct for SSL processing */
    SSL_CTX *ctx;	/* SSL Context */
    BIO *bio;		/* Struct for SSL processing */
    BIO *p_bio;		/* Parent BIO (that is layered on Tcl_Channel) */

    char *err;
} State;

/*
 * Forward declarations
 */

EXTERN Tcl_ChannelType *Tls_ChannelType _ANSI_ARGS_((void));
EXTERN Tcl_Channel	Tls_GetParent _ANSI_ARGS_((State *statePtr));

EXTERN Tcl_Obj*		Tls_NewX509Obj _ANSI_ARGS_ (( Tcl_Interp *interp, X509 *cert));
EXTERN void		Tls_Error _ANSI_ARGS_ ((State *statePtr, char *msg));
EXTERN void		Tls_Free _ANSI_ARGS_ ((char *blockPtr));
EXTERN int		Tls_WaitForConnect _ANSI_ARGS_(( State *statePtr,
							int *errorCodePtr));

EXTERN BIO_METHOD *	BIO_s_tcl _ANSI_ARGS_((void));
EXTERN BIO *		BIO_new_tcl _ANSI_ARGS_((State* statePtr, int flags));

#endif /* _TLSINT_H */








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/*
 * Copyright (C) 1997-1999 Sensus Consulting Ltd.
 * Matt Newman <[email protected]>
 *
 * $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tlsX509.c,v 1.1.1.1 2000/01/19 22:10:58 aborr Exp $
 */
#include "tlsInt.h"

/*
 * ASN1_UTCTIME_tostr --
 */
static char *
ASN1_UTCTIME_tostr(ASN1_UTCTIME *tm)
{
    static char bp[128];
    char *v;
    int gmt=0;
    static char *mon[12]={
        "Jan","Feb","Mar","Apr","May","Jun",
        "Jul","Aug","Sep","Oct","Nov","Dec"};
    int i;
    int y=0,M=0,d=0,h=0,m=0,s=0;
    
    i=tm->length;
    v=(char *)tm->data;
    
    if (i < 10) goto err;
    if (v[i-1] == 'Z') gmt=1;
    for (i=0; i<10; i++)
        if ((v[i] > '9') || (v[i] < '0')) goto err;
    y= (v[0]-'0')*10+(v[1]-'0');
    if (y < 70) y+=100;
    M= (v[2]-'0')*10+(v[3]-'0');
    if ((M > 12) || (M < 1)) goto err;
    d= (v[4]-'0')*10+(v[5]-'0');
    h= (v[6]-'0')*10+(v[7]-'0');
    m=  (v[8]-'0')*10+(v[9]-'0');
    if (	(v[10] >= '0') && (v[10] <= '9') &&
		(v[11] >= '0') && (v[11] <= '9'))
        s=  (v[10]-'0')*10+(v[11]-'0');
    
    sprintf(bp,"%s %2d %02d:%02d:%02d %d%s",
                   mon[M-1],d,h,m,s,y+1900,(gmt)?" GMT":"");
    return bp;
 err:
    return "Bad time value";
}

/*
 *------------------------------------------------------*
 *
 *	Tls_NewX509Obj --
 *
 *	------------------------------------------------*
 *	Converts a X509 certificate into a Tcl_Obj
 *	------------------------------------------------*
 *
 *	Sideeffects:
 *		None
 *
 *	Result:
 *		A Tcl List Object representing the provided
 *		X509 certificate.
 *
 *------------------------------------------------------*
 */

Tcl_Obj*
Tls_NewX509Obj( interp, cert)
    Tcl_Interp *interp;
    X509 *cert;
{
    Tcl_Obj *certPtr = Tcl_NewListObj( 0, NULL);
    int serial;
    char subject[BUFSIZ];
    char issuer[BUFSIZ];
    char notBefore[BUFSIZ];
    char notAfter[BUFSIZ];

    serial = ASN1_INTEGER_get(X509_get_serialNumber(cert));
    X509_NAME_oneline(X509_get_subject_name(cert),subject,sizeof(subject));
    X509_NAME_oneline(X509_get_issuer_name(cert),issuer,sizeof(issuer));

    strcpy( notBefore, ASN1_UTCTIME_tostr( X509_get_notBefore(cert) ));
    strcpy( notAfter, ASN1_UTCTIME_tostr( X509_get_notAfter(cert) ));

    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( "subject", -1) );
    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( subject, -1) );

    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( "issuer", -1) );
    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( issuer, -1) );

    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( "notBefore", -1) );
    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( notBefore, -1) );

    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( "notAfter", -1) );
    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( notAfter, -1) );

    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewStringObj( "serial", -1) );
    Tcl_ListObjAppendElement( interp, certPtr,
	    Tcl_NewIntObj( serial) );

    return certPtr;
}

















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