receive_ungetc = smtp_ungetc;
receive_feof = smtp_feof;
receive_ferror = smtp_ferror;
receive_smtp_buffered = smtp_buffered;
lwr_receive_getc = NULL;
lwr_receive_getbuf = NULL;
receive_ungetc = smtp_ungetc;
receive_feof = smtp_feof;
receive_ferror = smtp_ferror;
receive_smtp_buffered = smtp_buffered;
lwr_receive_getc = NULL;
lwr_receive_getbuf = NULL;