#ifdef _WIN32
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <wincrypt.h> /* OpenSSL needs this on Windows */
#endif

/* Handle TCL 8.6 CONST changes */
#ifndef CONST86
#   if TCL_MAJOR_VERSION > 8
#	define CONST86 const
#   else
#	define CONST86
#   endif
#ifdef NO_PATENTS
#  define NO_IDEA
#  define NO_RC2
#  define NO_RC4
#  define NO_RC5
#  define NO_RSA
#endif

#include <openssl/ssl.h>
#include <openssl/err.h>
#include <openssl/rand.h>
#include <openssl/opensslv.h>

/*
 * Determine if we should use the pre-OpenSSL 1.1.0 API
 */
#undef TCLTLS_OPENSSL_PRE_1_1
#if defined(LIBRESSL_VERSION_NUMBER)
#  define TCLTLS_OPENSSL_PRE_1_1_API 1
#endif

#ifndef ECONNABORTED
#define ECONNABORTED	130	/* Software caused connection abort */
#endif
#ifndef ECONNRESET
#define ECONNRESET	131	/* Connection reset by peer */
#endif

# elif defined(__GNUC__) && (__GNUC__ > 2)
#   define TCL_UNUSED(T) T JOIN(dummy, __LINE__) __attribute__((unused))
# else
#   define TCL_UNUSED(T) T JOIN(dummy, __LINE__)
# endif
#endif

#if (TCL_MAJOR_VERSION < 9) && defined(TCL_MINOR_VERSION) && (TCL_MINOR_VERSION < 7) && !defined(Tcl_Size)
#if (TCL_MAJOR_VERSION < 9) && defined(TCL_MINOR_VERSION) && (TCL_MINOR_VERSION < 7) && !defined(TCL_SIZE_MODIFIER)
#   define Tcl_Size int
#   define TCL_SIZE_MODIFIER ""
#endif

/*
 * 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);
Tcl_Obj        *Tls_NewCAObj(Tcl_Interp *interp, const SSL *ssl, int peer);
void            Tls_Error(State *statePtr, char *msg);
#if TCL_MAJOR_VERSION > 8
void            Tls_Free(void *blockPtr);
#else
void            Tls_Free(char *blockPtr);
#endif
void            Tls_Clean(State *statePtr);