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/*
* Copyright (C) 1997-2000 Matt Newman <[email protected]>
*
* $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tlsIO.c,v 1.4 2000/06/01 19:26:02 stanton 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
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/*
* Copyright (C) 1997-2000 Matt Newman <[email protected]>
*
* $Header: /home/rkeene/tmp/cvs2fossil/../tcltls/tls/tls/tlsIO.c,v 1.5 2000/06/01 22:34:01 stanton 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
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if (BIO_wpending(statePtr->bio)) {
mask |= TCL_WRITABLE;
}
if (BIO_pending(statePtr->bio)) {
mask |= TCL_READABLE;
}
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
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if (BIO_wpending(statePtr->bio)) {
mask |= TCL_WRITABLE;
}
if (BIO_pending(statePtr->bio)) {
mask |= TCL_READABLE;
}
/*
* The following NotifyChannel calls seems to be important, but
* we don't know why. It looks like if the mask is ever non-zero
* that it will enter an infinite loop.
*/
if (mask & TCL_WRITABLE) {
fprintf(stderr, "ChannelHandler: mask is writable\n");
}
if (mask & TCL_READABLE) {
fprintf(stderr, "ChannelHandler: mask is readable\n");
}
/*
* Notify the upper channel of the current BIO state so the event
* continues to propagate up the chain.
*
* stanton: It looks like this could result in an infinite loop if
* the upper channel doesn't cause ChannelHandler to be removed
* before Tcl_NotifyChannel calls channel handlers on the lower channel.
*/
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
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