/*
 * Copyright (C) 1997-1999 Matt Newman <matt@novadigm.com>
 *
 * $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tls.c,v 1.4 2000/06/05 18:09:53 welch Exp $
 * $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tls.c,v 1.5 2000/06/06 01:04:35 stanton 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
 *

			       (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) {
	Tls_Free(statePtr);
	Tls_Free((char *) statePtr);
/*        Tcl_EventuallyFree( (ClientData)statePtr, Tls_Free); */
        return TCL_ERROR;
    }

    /* allocate script */
    if (script) {
	char * tmp = Tcl_GetStringFromObj(script, NULL);
	if (tmp && *tmp) {

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

    /*
     * SSL Callbacks
     */

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

    Tls_Clean(blockPtr);
    Tcl_Free((char *)statePtr);
    Tls_Clean(statePtr);
    Tcl_Free(blockPtr);
}

/*
 *-------------------------------------------------------------------
 *
 * Tls_Clean --
 *

 *
 * Side effects:
 *	Frees all the state
 *
 *-------------------------------------------------------------------
 */
void
Tls_Clean( char *blockPtr )
{
    State *statePtr = (State *)blockPtr;

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

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

}

/*
 *-------------------------------------------------------------------
 *
 * Tls_Init --
 *