extern int tls_client_start(int, host_item *, address_item *,
transport_instance *
extern int tls_client_start(int, host_item *, address_item *,
transport_instance *
);
extern void tls_close(BOOL, BOOL);
extern int tls_export_cert(uschar *, size_t, void *);
extern int tls_feof(void);
extern int tls_ferror(void);
);
extern void tls_close(BOOL, BOOL);
extern int tls_export_cert(uschar *, size_t, void *);
extern int tls_feof(void);
extern int tls_ferror(void);
extern int tls_getc(void);
extern int tls_import_cert(const uschar *, void **);
extern int tls_read(BOOL, uschar *, size_t);
extern int tls_getc(void);
extern int tls_import_cert(const uschar *, void **);
extern int tls_read(BOOL, uschar *, size_t);