incoming TCP/IP. */
extern int (*lwr_receive_getc)(unsigned);
+extern uschar * (*lwr_receive_getbuf)(unsigned *);
extern int (*lwr_receive_ungetc)(int);
extern int (*receive_getc)(unsigned);
+extern uschar * (*receive_getbuf)(unsigned *);
extern void (*receive_get_cache)(void);
extern int (*receive_ungetc)(int);
extern int (*receive_feof)(void);