2004-12-17  Pat Thoyts  <[email protected]>

	* win/makefile.vc:  Added the MSVC build system (from the Tcl
	* win/rules.vc:     sampleextension).
	* win/nmakehlp.c:
	* win/tls.rc        Added Windows resource file.
	
	* tls.tcl:          From patch #948155, added support for
	                    alternate socket commands.
	* tls.c:            Quieten some MSVC warnings. Prefer ckalloc
	                    over Tcl_Alloc. (David Graveraux).

2004-06-29  Pat Thoyts  <[email protected]>

	* tls.c:            Fixup to build against tcl 8.3.3. Handle
	* tlsIO.c:          8.4 constification.

	* tlsInt.h:         Added headers required with MSVC on Win32.
	* tlsX509.c:        undef min and max if defined (win32).

/*
 * Copyright (C) 1997-1999 Matt Newman <[email protected]>
 * some modifications:
 *	Copyright (C) 2000 Ajuba Solutions
 *	Copyright (C) 2002 ActiveState Corporation
 *	Copyright (C) 2004 Starfish Systems 
 *
 * $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tls.c,v 1.24 2004/12/17 16:01:44 patthoyts 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
 *

 * 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 void	InfoCallback _ANSI_ARGS_ ((CONST SSL *ssl, int where, int ret));

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[]));

 */

#ifdef BSAFE
#define PRE_OPENSSL_0_9_4 1
#endif

/*
 * Pre 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

 *	None
 *
 * Side effects:
 *	Calls callback (if defined)
 *-------------------------------------------------------------------
 */
static void
InfoCallback(CONST SSL *ssl, int where, int ret)
{
    State *statePtr = (State*)SSL_get_app_data((SSL *)ssl);
    Tcl_Obj *cmdPtr;
    char *major; char *minor;

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

    cmdPtr = Tcl_DuplicateObj(statePtr->callback);

    if (cert && !*cert)		cert	= NULL;
    if (key && !*key)		key	= NULL;
    if (ciphers && !*ciphers)	ciphers	= NULL;
    if (CAfile && !*CAfile)	CAfile	= NULL;
    if (CAdir && !*CAdir)	CAdir	= NULL;

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

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

     * SSL Callbacks
     */

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

    SSL_set_verify(statePtr->ssl, verify, VerifyCallback);

    SSL_CTX_set_info_callback(statePtr->ctx, InfoCallback);

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

    if (server) {
	statePtr->flags |= TLS_TCL_SERVER;

 */
void
Tls_Free( char *blockPtr )
{
    State *statePtr = (State *)blockPtr;

    Tls_Clean(statePtr);
    ckfree(blockPtr);
}

/*
 *-------------------------------------------------------------------
 *
 * Tls_Clean --
 *

#
# Copyright (C) 1997-2000 Matt Newman <[email protected]> 
#
# $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tls.tcl,v 1.7 2004/12/17 16:02:03 patthoyts 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

    # Over-ride this if you are using a different socket command
    variable socketCmd
    if {![info exists socketCmd]} {
        set socketCmd [info command ::socket]
    }
}
#
# 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} {
    variable socketCmd
    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 host [lindex $args [expr {$argc-2}]]
	set port [lindex $args [expr {$argc-1}]]
	lappend sopts $host $port
    }
    #
    # Create TCP/IP socket
    #
    set chan [eval $socketCmd $sopts]
    if {!$server && [catch {
	#
	# Push SSL layer onto socket
	#
	eval [list tls::import] $chan $iopts
    } err]} {
	set info ${::errorInfo}