int vflags;		/* verify flags */
	SSL *ssl;		/* Struct for SSL processing */
	SSL_CTX *ctx;		/* SSL Context */
	BIO *bio;		/* Struct for SSL processing */
	BIO *p_bio;		/* Parent BIO (that is layered on Tcl_Channel) */

	unsigned char *protos;	/* List of supported protocols in protocol format */
	unsigned int protos_len; /* Length of protos */

	char *err;
} State;

#ifdef USE_TCL_STUBS
#ifndef Tcl_StackChannel
#error "Unable to compile on this version of Tcl"
#endif /* Tcl_GetStackedChannel */
#endif /* USE_TCL_STUBS */

/*
 * Forward declarations
 */
const Tcl_ChannelType *Tls_ChannelType(void);
Tcl_Channel     Tls_GetParent(State *statePtr, int maskFlags);

Tcl_Obj         *Tls_NewX509Obj(Tcl_Interp *interp, X509 *cert);
Tcl_Obj		*Tls_NewCAObj(Tcl_Interp *interp, const SSL *ssl, int peer);
void            Tls_Error(State *statePtr, char *msg);
void            Tls_Free(char *blockPtr);
void            Tls_Clean(State *statePtr);