/*
 * Copyright (C) 1997-1999 Matt Newman <[email protected]>
 * Copyright (C) 2000 Ajuba Solutions
 *
 * $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tls.c,v 1.10 2000/08/15 18:49:30 hobbs Exp $
 * $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tls.c,v 1.11 2000/08/16 17:44:05 hobbs 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
 *

 *-------------------------------------------------------------------
 */

int
Tls_Init(Tcl_Interp *interp)		/* Interpreter in which the package is
                                         * to be made available. */
{
    int major, minor, release, serial;
    int major, minor, patchlevel, release;

    /*
     * The original 8.2.0 stacked channel implementation (and the patch
     * that preceded it) had problems with scalability and robustness.
     * These were address in 8.3.2 / 8.4a2, so we now require that as a
     * minimum for TLS 1.4+.  We only support 8.2+ now (8.3.2+ preferred).
     */

    }

    /*
     * Get the version so we can runtime switch on available functionality.
     * TLS should really only be used in 8.3.2+, but the other works for
     * some limited functionality, so an attempt at support is made.
     */
    Tcl_GetVersion(&major, &minor, &release, &serial);
    Tcl_GetVersion(&major, &minor, &patchlevel, &release);
    if ((major > 8) || ((major == 8) && ((minor > 3) || ((minor == 3) &&
	    (release == TCL_FINAL_RELEASE) && (serial >= 2))))) {
	    (release == TCL_FINAL_RELEASE) && (patchlevel >= 2))))) {
	/* 8.3.2+ */
	channelTypeVersion = TLS_CHANNEL_VERSION_2;
    } else {
	/* 8.2.0 - 8.3.1 */
	channelTypeVersion = TLS_CHANNEL_VERSION_1;
    }