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|
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|
*
* Side effects:
* Reads input from the input device of the channel.
*
*-------------------------------------------------------------------
*/
static int
TlsInputProc(ClientData instanceData, /* Socket state. */
static int TlsInputProc(ClientData instanceData, char *buf, int bufSize, int *errorCodePtr) {
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? */
State *statePtr = (State *) instanceData;
int bytesRead;
int tlsConnect;
int err;
*errorCodePtr = 0;
*errorCodePtr = 0;
dprintf("BIO_read(%d)", bufSize);
dprintf("BIO_read(%d)", bufSize);
if (statePtr->flags & TLS_TCL_CALLBACK) {
/* don't process any bytes while verify callback is running */
dprintf("Callback is running, reading 0 bytes");
if (statePtr->flags & TLS_TCL_CALLBACK) {
/* don't process any bytes while verify callback is running */
dprintf("Callback is running, reading 0 bytes");
bytesRead = 0;
goto input;
}
bytesRead = 0;
return(0);
}
if (!SSL_is_init_finished(statePtr->ssl)) {
dprintf("Calling Tls_WaitForConnect");
bytesRead = Tls_WaitForConnect(statePtr, errorCodePtr);
if (bytesRead <= 0) {
dprintf("Got an error (bytesRead = %i)", bytesRead);
dprintf("Calling Tls_WaitForConnect");
tlsConnect = Tls_WaitForConnect(statePtr, errorCodePtr);
if (tlsConnect < 0) {
dprintf("Got an error (bytesRead = %i)", bytesRead);
if (*errorCodePtr == ECONNRESET) {
dprintf("Got connection reset");
/* Soft EOF */
*errorCodePtr = 0;
bytesRead = 0;
}
if (*errorCodePtr == ECONNRESET) {
dprintf("Got connection reset");
/* Soft EOF */
*errorCodePtr = 0;
bytesRead = 0;
}
goto input;
return(bytesRead);
}
}
if (statePtr->flags & TLS_TCL_INIT) {
statePtr->flags &= ~(TLS_TCL_INIT);
}
/*
* We need to clear the SSL error stack now because we sometimes reach
* this function with leftover errors in the stack. If BIO_read
* returns -1 and intends EAGAIN, there is a leftover error, it will be
* misconstrued as an error, not EAGAIN.
*
* Alternatively, we may want to handle the <0 return codes from
* BIO_read specially (as advised in the RSA docs). TLS's lower level BIO
* functions play with the retry flags though, and this seems to work
* correctly. Similar fix in TlsOutputProc. - hobbs
*/
ERR_clear_error();
bytesRead = BIO_read(statePtr->bio, buf, bufSize);
dprintf("BIO_read -> %d", bytesRead);
if (statePtr->flags & TLS_TCL_INIT) {
statePtr->flags &= ~(TLS_TCL_INIT);
}
/*
* We need to clear the SSL error stack now because we sometimes reach
* this function with leftover errors in the stack. If BIO_read
* returns -1 and intends EAGAIN, there is a leftover error, it will be
* misconstrued as an error, not EAGAIN.
*
* Alternatively, we may want to handle the <0 return codes from
* BIO_read specially (as advised in the RSA docs). TLS's lower level BIO
* functions play with the retry flags though, and this seems to work
* correctly. Similar fix in TlsOutputProc. - hobbs
*/
ERR_clear_error();
bytesRead = BIO_read(statePtr->bio, buf, bufSize);
dprintf("BIO_read -> %d", bytesRead);
if (bytesRead < 0) {
int err = SSL_get_error(statePtr->ssl, bytesRead);
err = SSL_get_error(statePtr->ssl, bytesRead);
if (err == SSL_ERROR_SSL) {
Tls_Error(statePtr, TCLTLS_SSL_ERROR(statePtr->ssl, bytesRead));
*errorCodePtr = ECONNABORTED;
} else if (BIO_should_retry(statePtr->bio)) {
dprintf("RE! ");
*errorCodePtr = EAGAIN;
} else {
*errorCodePtr = Tcl_GetErrno();
if (*errorCodePtr == ECONNRESET) {
if (BIO_should_retry(statePtr->bio)) {
dprintf("I/O failed, will retry based on EAGAIN");
*errorCodePtr = EAGAIN;
}
switch (err) {
case SSL_ERROR_NONE:
dprintBuffer(buf, bytesRead);
break;
case SSL_ERROR_SSL:
Tls_Error(statePtr, TCLTLS_SSL_ERROR(statePtr->ssl, bytesRead));
*errorCodePtr = ECONNABORTED;
break;
case SSL_ERROR_SYSCALL:
dprintf("I/O error reading, treating it as EOF");
/* Soft EOF */
*errorCodePtr = 0;
bytesRead = 0;
}
*errorCodePtr = 0;
bytesRead = 0;
break;
}
}
}
input:
dprintf("Input(%d) -> %d [%d]", bufSize, bytesRead, *errorCodePtr);
return bytesRead;
input:
dprintf("Input(%d) -> %d [%d]", bufSize, bytesRead, *errorCodePtr);
return bytesRead;
}
/*
*-------------------------------------------------------------------
*
* TlsOutputProc --
*
* 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
TlsOutputProc(ClientData instanceData, /* Socket state. */
static int TlsOutputProc(ClientData instanceData, CONST char *buf, int toWrite, int *errorCodePtr) {
CONST 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;
State *statePtr = (State *) instanceData;
int written, err;
*errorCodePtr = 0;
*errorCodePtr = 0;
dprintf("BIO_write(%p, %d)", (void *) statePtr, toWrite);
dprintf("BIO_write(%p, %d)", (void *) statePtr, toWrite);
dprintBuffer(buf, toWrite);
if (statePtr->flags & TLS_TCL_CALLBACK) {
/* don't process any bytes while verify callback is running */
written = -1;
*errorCodePtr = EAGAIN;
if (statePtr->flags & TLS_TCL_CALLBACK) {
dprintf("Don't process output while callbacks are running")
written = -1;
*errorCodePtr = EAGAIN;
goto output;
}
return(-1);
}
if (!SSL_is_init_finished(statePtr->ssl)) {
dprintf("Calling Tls_WaitForConnect");
dprintf("Calling Tls_WaitForConnect");
written = Tls_WaitForConnect(statePtr, errorCodePtr);
if (written <= 0) {
dprintf("Tls_WaitForConnect returned %i (err = %i)", written, *errorCodePtr);
if (written < 0) {
dprintf("Tls_WaitForConnect returned %i (err = %i)", written, *errorCodePtr);
goto output;
return(-1);
}
}
if (statePtr->flags & TLS_TCL_INIT) {
statePtr->flags &= ~(TLS_TCL_INIT);
}
if (toWrite == 0) {
dprintf("zero-write");
BIO_flush(statePtr->bio);
written = 0;
goto output;
if (toWrite == 0) {
dprintf("zero-write");
BIO_flush(statePtr->bio);
written = 0;
*errorCodePtr = 0;
return(0);
}
} else {
/*
* We need to clear the SSL error stack now because we sometimes reach
* this function with leftover errors in the stack. If BIO_write
* returns -1 and intends EAGAIN, there is a leftover error, it will be
* misconstrued as an error, not EAGAIN.
*
* Alternatively, we may want to handle the <0 return codes from
* BIO_write specially (as advised in the RSA docs). TLS's lower level
* BIO functions play with the retry flags though, and this seems to
* work correctly. Similar fix in TlsInputProc. - hobbs
*/
ERR_clear_error();
written = BIO_write(statePtr->bio, buf, toWrite);
dprintf("BIO_write(%p, %d) -> [%d]",
dprintf("BIO_write(%p, %d) -> [%d]", (void *) statePtr, toWrite, written);
(void *) statePtr, toWrite, written);
}
if (written <= 0) {
switch ((err = SSL_get_error(statePtr->ssl, written))) {
case SSL_ERROR_NONE:
if (written < 0) {
written = 0;
}
break;
case SSL_ERROR_WANT_WRITE:
dprintf(" write W BLOCK");
break;
case SSL_ERROR_WANT_READ:
dprintf(" write R BLOCK");
break;
case SSL_ERROR_WANT_X509_LOOKUP:
dprintf(" write X BLOCK");
break;
case SSL_ERROR_ZERO_RETURN:
dprintf(" closed");
written = 0;
break;
case SSL_ERROR_SYSCALL:
*errorCodePtr = Tcl_GetErrno();
dprintf(" [%d] syscall errr: %d",
err = SSL_get_error(statePtr->ssl, written);
switch (err) {
case SSL_ERROR_NONE:
if (written < 0) {
written = 0;
}
break;
case SSL_ERROR_WANT_WRITE:
dprintf(" write W BLOCK");
break;
case SSL_ERROR_WANT_READ:
dprintf(" write R BLOCK");
break;
case SSL_ERROR_WANT_X509_LOOKUP:
dprintf(" write X BLOCK");
break;
case SSL_ERROR_ZERO_RETURN:
dprintf(" closed");
written = 0;
break;
case SSL_ERROR_SYSCALL:
*errorCodePtr = Tcl_GetErrno();
dprintf(" [%d] syscall errr: %d", written, *errorCodePtr);
written, *errorCodePtr);
written = -1;
break;
case SSL_ERROR_SSL:
Tls_Error(statePtr, TCLTLS_SSL_ERROR(statePtr->ssl, written));
*errorCodePtr = ECONNABORTED;
written = -1;
break;
default:
dprintf(" unknown err: %d", err);
break;
written = -1;
break;
case SSL_ERROR_SSL:
Tls_Error(statePtr, TCLTLS_SSL_ERROR(statePtr->ssl, written));
*errorCodePtr = ECONNABORTED;
written = -1;
break;
default:
dprintf(" unknown err: %d", err);
break;
}
}
output:
dprintf("Output(%d) -> %d", toWrite, written);
return written;
output:
dprintf("Output(%d) -> %d", toWrite, written);
return(written);
}
/*
*-------------------------------------------------------------------
*
* TlsGetOptionProc --
*
|
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Tcl_Channel downChan;
State *statePtr = (State *) instanceData;
dprintf("TlsWatchProc(0x%x)", mask);
/* Pretend to be dead as long as the verify callback is running.
* Otherwise that callback could be invoked recursively. */
if (statePtr->flags & TLS_TCL_CALLBACK) { return; }
if (statePtr->flags & TLS_TCL_CALLBACK) {
dprintf("Callback is on-going, doing nothing");
return;
}
dprintFlags(statePtr);
downChan = Tls_GetParent(statePtr, TLS_TCL_FASTPATH);
if (statePtr->flags & TLS_TCL_HANDSHAKE_FAILED) {
dprintf("Asked to watch a socket with a failed handshake -- nothing can happen here");
dprintf("Unregistering interest in the lower channel");
(Tcl_GetChannelType(downChan))->watchProc(Tcl_GetChannelInstanceData(downChan), 0);
statePtr->watchMask = 0;
return;
}
statePtr->watchMask = mask;
/* No channel handlers any more. We will be notified automatically
* about events on the channel below via a call to our
* 'TransformNotifyProc'. But we have to pass the interest down now.
* We are allowed to add additional 'interest' to the mask if we want
* to. But this transformation has no such interest. It just passes
* the request down, unchanged.
*/
downChan = Tls_GetParent(statePtr);
dprintf("Registering our interest in the lower channel (chan=%p)", (void *) downChan);
(Tcl_GetChannelType(downChan))
->watchProc(Tcl_GetChannelInstanceData(downChan), mask);
/*
* Management of the internal timer.
*/
if (statePtr->timer != (Tcl_TimerToken) NULL) {
dprintf("A timer was found, deleting it");
Tcl_DeleteTimerHandler(statePtr->timer);
statePtr->timer = (Tcl_TimerToken) NULL;
}
if ((mask & TCL_READABLE) && Tcl_InputBuffered(statePtr->self) > 0) {
/*
* There is interest in readable events and we actually have
* data waiting, so generate a timer to flush that.
*/
dprintf("Creating a new timer since data appears to be waiting");
statePtr->timer = Tcl_CreateTimerHandler(TLS_TCL_DELAY,
TlsChannelHandlerTimer, (ClientData) statePtr);
}
}
/*
*-------------------------------------------------------------------
|
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|
* The appropriate Tcl_File or NULL if not present.
*
* Side effects:
* None.
*
*-------------------------------------------------------------------
*/
static int
TlsGetHandleProc(ClientData instanceData, /* The socket state. */
static int TlsGetHandleProc(ClientData instanceData, int direction, ClientData *handlePtr) {
int direction, /* Which Tcl_File to retrieve? */
ClientData *handlePtr) /* Where to store the handle. */
{
State *statePtr = (State *) instanceData;
State *statePtr = (State *) instanceData;
return Tcl_GetChannelHandle(Tls_GetParent(statePtr), direction, handlePtr);
return(Tcl_GetChannelHandle(Tls_GetParent(statePtr, TLS_TCL_FASTPATH), direction, handlePtr));
}
/*
*-------------------------------------------------------------------
*
* TlsNotifyProc --
*
* Handler called by Tcl to inform us of activity
* on the underlying channel.
*
* Results:
* None.
*
* Side effects:
* May process the incoming event by itself.
*
*-------------------------------------------------------------------
*/
static int
static int TlsNotifyProc(ClientData instanceData, int mask) {
TlsNotifyProc(instanceData, mask)
ClientData instanceData; /* The state of the notified transformation */
int mask; /* The mask of occuring events */
{
State *statePtr = (State *) instanceData;
State *statePtr = (State *) instanceData;
int errorCode;
/*
* An event occured in the underlying channel. This
* transformation doesn't process such events thus returns the
* incoming mask unchanged.
*/
/*
* An event occured in the underlying channel. This
* transformation doesn't process such events thus returns the
* incoming mask unchanged.
*/
if (statePtr->timer != (Tcl_TimerToken) NULL) {
/*
* Delete an existing timer. It was not fired, yet we are
* here, so the channel below generated such an event and we
* don't have to. The renewal of the interest after the
* execution of channel handlers will eventually cause us to
* recreate the timer (in WatchProc).
*/
if (statePtr->timer != (Tcl_TimerToken) NULL) {
/*
* Delete an existing timer. It was not fired, yet we are
* here, so the channel below generated such an event and we
* don't have to. The renewal of the interest after the
* execution of channel handlers will eventually cause us to
* recreate the timer (in WatchProc).
*/
Tcl_DeleteTimerHandler(statePtr->timer);
statePtr->timer = (Tcl_TimerToken) NULL;
}
Tcl_DeleteTimerHandler(statePtr->timer);
statePtr->timer = (Tcl_TimerToken) NULL;
}
if (statePtr->flags & TLS_TCL_CALLBACK) {
dprintf("Returning 0 due to callback");
return 0;
}
if (statePtr->flags & TLS_TCL_CALLBACK) {
dprintf("Returning 0 due to callback");
return 0;
}
if ((statePtr->flags & TLS_TCL_INIT) && !SSL_is_init_finished(statePtr->ssl)) {
int errorCode = 0;
dprintf("Calling Tls_WaitForConnect");
if (Tls_WaitForConnect(statePtr, &errorCode) <= 0) {
if (errorCode == EAGAIN) {
dprintf("Async flag could be set (didn't check) and errorCode == EAGAIN: Returning 0");
dprintf("Calling Tls_WaitForConnect");
errorCode = 0;
if (Tls_WaitForConnect(statePtr, &errorCode) < 0) {
if (errorCode == EAGAIN) {
dprintf("Async flag could be set (didn't check) and errorCode == EAGAIN: Returning 0");
return 0;
}
return 0;
}
dprintf("Tls_WaitForConnect returned an error");
dprintf("Tls_WaitForConnect returned an error");
}
}
dprintf("Returning %i", mask);
dprintf("Returning %i", mask);
return mask;
return(mask);
}
#if 0
/*
*------------------------------------------------------*
*
* TlsChannelHandler --
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*
* Result:
* None.
*
*------------------------------------------------------*
*/
static void
TlsChannelHandlerTimer (clientData)
static void TlsChannelHandlerTimer(ClientData clientData) {
ClientData clientData; /* Transformation to query */
{
State *statePtr = (State *) clientData;
int mask = 0;
State *statePtr = (State *) clientData;
int mask = 0;
dprintf("Called");
statePtr->timer = (Tcl_TimerToken) NULL;
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);
if (BIO_wpending(statePtr->bio)) {
dprintf("[chan=%p] BIO writable", statePtr->self);
mask |= TCL_WRITABLE;
}
if (BIO_pending(statePtr->bio)) {
dprintf("[chan=%p] BIO readable", statePtr->self);
mask |= TCL_READABLE;
}
dprintf("Notifying ourselves");
Tcl_NotifyChannel(statePtr->self, mask);
dprintf("Returning");
return;
}
/*
*------------------------------------------------------*
*
* Tls_WaitForConnect --
*
* Sideeffects:
* Issues SSL_accept or SSL_connect
*
* Result:
* None.
*
*------------------------------------------------------*
*/
int Tls_WaitForConnect(State *statePtr, int *errorCodePtr) {
unsigned long backingError;
int err;
int err, rc;
int bioShouldRetry;
dprintf("WaitForConnect(%p)", (void *) statePtr);
dprintf("WaitForConnect(%p)", (void *) statePtr);
dprintFlags(statePtr);
if (!(statePtr->flags & TLS_TCL_INIT)) {
dprintf("Tls_WaitForConnect called on already initialized channel -- returning with immediate success");
*errorCodePtr = 0;
return(0);
}
if (statePtr->flags & TLS_TCL_HANDSHAKE_FAILED) {
/*
* We choose ECONNRESET over ECONNABORTED here because some server
* side code, on the wiki for example, sets up a read handler that
* does a read and if eof closes the channel. There is no catch/try
* around the reads so exceptions will result in potentially many
* dangling channels hanging around that should have been closed.
* (Backgroun: ECONNABORTED maps to a Tcl exception and
* ECONNRESET maps to graceful EOF).
*/
*errorCodePtr = ECONNRESET;
return -1;
}
if (statePtr->flags & TLS_TCL_HANDSHAKE_FAILED) {
/*
* We choose ECONNRESET over ECONNABORTED here because some server
* side code, on the wiki for example, sets up a read handler that
* does a read and if eof closes the channel. There is no catch/try
* around the reads so exceptions will result in potentially many
* dangling channels hanging around that should have been closed.
* (Backgroun: ECONNABORTED maps to a Tcl exception and
* ECONNRESET maps to graceful EOF).
*/
*errorCodePtr = ECONNRESET;
return(-1);
}
for (;;) {
/* Not initialized yet! */
if (statePtr->flags & TLS_TCL_SERVER) {
dprintf("Calling SSL_accept()");
err = SSL_accept(statePtr->ssl);
} else {
dprintf("Calling SSL_connect()");
err = SSL_connect(statePtr->ssl);
}
for (;;) {
/* Not initialized yet! */
if (statePtr->flags & TLS_TCL_SERVER) {
dprintf("Calling SSL_accept()");
err = SSL_accept(statePtr->ssl);
} else {
dprintf("Calling SSL_connect()");
err = SSL_connect(statePtr->ssl);
}
/*SSL_write(statePtr->ssl, (char*)&err, 0); HACK!!! */
if (err > 0) {
dprintf("That seems to have gone okay");
BIO_flush(statePtr->bio);
} else {
int rc = SSL_get_error(statePtr->ssl, err);
if (err > 0) {
dprintf("That seems to have gone okay");
BIO_flush(statePtr->bio);
}
rc = SSL_get_error(statePtr->ssl, err);
dprintf("Got error: %i (rc = %i)", err, rc);
dprintf("Got error: %i (rc = %i)", err, rc);
bioShouldRetry = 0;
if (err <= 0) {
if (rc == SSL_ERROR_WANT_CONNECT || rc == SSL_ERROR_WANT_ACCEPT || rc == SSL_ERROR_WANT_READ || rc == SSL_ERROR_WANT_WRITE) {
bioShouldRetry = 1;
} else if (BIO_should_retry(statePtr->bio)) {
bioShouldRetry = 1;
}
if (rc == SSL_ERROR_SSL) {
Tls_Error(statePtr,
} else {
(char *)ERR_reason_error_string(ERR_get_error()));
statePtr->flags |= TLS_TCL_HANDSHAKE_FAILED;
*errorCodePtr = ECONNABORTED;
return -1;
} else if (BIO_should_retry(statePtr->bio)) {
if (statePtr->flags & TLS_TCL_ASYNC) {
dprintf("E! ");
*errorCodePtr = EAGAIN;
return -1;
} else {
continue;
}
if (!SSL_is_init_finished(statePtr->ssl)) {
bioShouldRetry = 1;
}
}
if (bioShouldRetry) {
dprintf("The I/O did not complete -- but we should try it again");
if (statePtr->flags & TLS_TCL_ASYNC) {
dprintf("Returning EAGAIN so that it can be retried later");
*errorCodePtr = EAGAIN;
return(-1);
} else {
dprintf("Doing so now");
continue;
}
}
} else if (err <= 0) {
if (SSL_in_init(statePtr->ssl)) {
dprintf("SSL_in_init() is true");
}
dprintf("We have either completely established the session or completely failed it -- there is no more need to ever retry it though");
break;
}
if (Tcl_Eof(statePtr->self)) {
dprintf("Error = 0 and EOF is set");
*errorCodePtr = EINVAL;
switch (rc) {
if (rc != SSL_ERROR_SYSCALL) {
dprintf("Error from some reason other than our BIO, returning 0");
return 0;
}
}
dprintf("CR! ");
statePtr->flags |= TLS_TCL_HANDSHAKE_FAILED;
*errorCodePtr = ECONNRESET;
return -1;
}
if (statePtr->flags & TLS_TCL_SERVER) {
case SSL_ERROR_NONE:
/* The connection is up, we are done here */
dprintf("The connection is up");
break;
case SSL_ERROR_ZERO_RETURN:
dprintf("SSL_ERROR_ZERO_RETURN: Connect returned an invalid value...")
return(-1);
case SSL_ERROR_SYSCALL:
backingError = ERR_get_error();
dprintf("I/O error occured");
if (backingError == 0 && err == 0) {
dprintf("EOF reached")
}
statePtr->flags |= TLS_TCL_HANDSHAKE_FAILED;
*errorCodePtr = ECONNRESET;
return(-1);
case SSL_ERROR_SSL:
dprintf("Got permanent fatal SSL error, aborting immediately");
Tls_Error(statePtr, (char *)ERR_reason_error_string(ERR_get_error()));
statePtr->flags |= TLS_TCL_HANDSHAKE_FAILED;
*errorCodePtr = ECONNABORTED;
return(-1);
case SSL_ERROR_WANT_CONNECT:
case SSL_ERROR_WANT_ACCEPT:
case SSL_ERROR_WANT_X509_LOOKUP:
default:
dprintf("We got a confusing reply: %i", rc);
*errorCodePtr = Tcl_GetErrno();
dprintf("ERR(%d, %d) ", rc, *errorCodePtr);
return(-1);
}
#if 0
if (statePtr->flags & TLS_TCL_SERVER) {
dprintf("This is an TLS server, checking the certificate for the peer");
err = SSL_get_verify_result(statePtr->ssl);
if (err != X509_V_OK) {
dprintf("Invalid certificate, returning in failure");
Tls_Error(statePtr,
(char *)X509_verify_cert_error_string(err));
statePtr->flags |= TLS_TCL_HANDSHAKE_FAILED;
*errorCodePtr = ECONNABORTED;
return -1;
Tls_Error(statePtr, (char *)X509_verify_cert_error_string(err));
statePtr->flags |= TLS_TCL_HANDSHAKE_FAILED;
*errorCodePtr = ECONNABORTED;
return(-1);
}
}
*errorCodePtr = Tcl_GetErrno();
dprintf("ERR(%d, %d) ", rc, *errorCodePtr);
}
#endif
dprintf("Removing the \"TLS_TCL_INIT\" flag since we have completed the handshake");
return -1;
}
dprintf("R0! ");
statePtr->flags &= ~TLS_TCL_INIT;
dprintf("Returning in success");
return 1;
}
*errorCodePtr = 0;
return(0);
}
Tcl_Channel Tls_GetParent(State *statePtr) {
Tcl_Channel Tls_GetParent(State *statePtr, int maskFlags) {
dprintf("Requested to get parent of channel %p", statePtr->self);
if ((statePtr->flags & ~maskFlags) & TLS_TCL_FASTPATH) {
dprintf("Asked to get the parent channel while we are using FastPath -- returning NULL");
return(NULL);
}
return(Tcl_GetStackedChannel(statePtr->self));
}
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