Check-in [9bb0350edb]

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Overview
Comment:More debugging
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SHA1:9bb0350edb0349a57a6895ad6c97ddb53cb24063
User & Date: rkeene 2016-12-07 14:51:03
Context
2016-12-07
14:56
Updated to store the Tcl EOF flag, in case it gets reset in between calls -- causing debugging builds to operate differently than normal builds check-in: 28b99767e9 user: rkeene tags: tls-1-7
14:51
More debugging check-in: 9bb0350edb user: rkeene tags: tls-1-7
14:43
More debugging around TLS retries check-in: e84900f887 user: rkeene tags: tls-1-7
Changes

Changes to tlsBIO.c.

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    BIO *bio;
    char *buf;
    int bufLen;
{
    Tcl_Channel chan = Tls_GetParent((State*)bio->ptr);
    int ret = 0;

    dprintf("BioRead(%p, <buf>, %d) [%p]",
	    (void *) bio, bufLen, (void *) chan);

    if (buf == NULL) return 0;

    if (channelTypeVersion == TLS_CHANNEL_VERSION_2) {
	ret = Tcl_ReadRaw(chan, buf, bufLen);
    } else {
	ret = Tcl_Read(chan, buf, bufLen);
    }

    dprintf("[%p] BioRead(%d) -> %d [%d.%d]",
	    (void *) chan, bufLen, ret, Tcl_Eof(chan), Tcl_GetErrno());

    BIO_clear_flags(bio, BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY);

    if (ret == 0) {
	if (!Tcl_Eof(chan)) {

	    BIO_set_retry_read(bio);
	    ret = -1;
	}
    }
    if (BIO_should_write(bio)) {
	BIO_set_retry_write(bio);
    }



    return ret;
}

static int
BioPuts	(bio, str)
    BIO *bio;
    CONST char *str;







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    BIO *bio;
    char *buf;
    int bufLen;
{
    Tcl_Channel chan = Tls_GetParent((State*)bio->ptr);
    int ret = 0;

    dprintf("BioRead(%p, <buf>, %d) [%p]", (void *) bio, bufLen, (void *) chan);


    if (buf == NULL) return 0;

    if (channelTypeVersion == TLS_CHANNEL_VERSION_2) {
	ret = Tcl_ReadRaw(chan, buf, bufLen);
    } else {
	ret = Tcl_Read(chan, buf, bufLen);
    }

    dprintf("[%p] BioRead(%d) -> %d [tclEof=%d; tclErrno=%d]",
	    (void *) chan, bufLen, ret, Tcl_Eof(chan), Tcl_GetErrno());

    BIO_clear_flags(bio, BIO_FLAGS_READ|BIO_FLAGS_SHOULD_RETRY);

    if (ret == 0) {
	if (!Tcl_Eof(chan)) {
            dprintf("Got 0 from Tcl_Read or Tcl_ReadRaw, and EOF is set -- ret == -1 now");
	    BIO_set_retry_read(bio);
	    ret = -1;
	}
    }
    if (BIO_should_write(bio)) {
	BIO_set_retry_write(bio);
    }

    dprintf("BioRead(%p, <buf>, %d) [%p] returning %i", (void *) bio, bufLen, (void *) chan, ret);

    return ret;
}

static int
BioPuts	(bio, str)
    BIO *bio;
    CONST char *str;

Changes to tlsIO.c.

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    *errorCodePtr = 0;

    dprintf("BIO_read(%d)", bufSize);

    if (statePtr->flags & TLS_TCL_CALLBACK) {
       /* don't process any bytes while verify callback is running */


       bytesRead = 0;
       goto input;
    }

    if (!SSL_is_init_finished(statePtr->ssl)) {
	bytesRead = Tls_WaitForConnect(statePtr, errorCodePtr);
	if (bytesRead <= 0) {


	    if (*errorCodePtr == ECONNRESET) {

		/* Soft EOF */
		*errorCodePtr = 0;
		bytesRead = 0;
	    }
	    goto input;
	}
    }







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    *errorCodePtr = 0;

    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");

       bytesRead = 0;
       goto input;
    }

    if (!SSL_is_init_finished(statePtr->ssl)) {
	bytesRead = Tls_WaitForConnect(statePtr, errorCodePtr);
	if (bytesRead <= 0) {
            dprintf("Got an error (bytesRead = %i)", bytesRead);

	    if (*errorCodePtr == ECONNRESET) {
                dprintf("Got connection reset");
		/* Soft EOF */
		*errorCodePtr = 0;
		bytesRead = 0;
	    }
	    goto input;
	}
    }