rem: : ITEM_UPDATING | ITEM_MISSING_DATA;
add: : ITEM_TRANSFER | ITEM_MISSING_DATA; int isave = iflags;
context: int read_iflags(int f_in, int f_out, int ndx, char *buf){	int iflags = protocol_version >= 29 ? read_shortint(f_in)		   : ITEM_UPDATING | ITEM_MISSING_DATA;	/* Handle the new keep-alive (no-op) packet. */	if (ndx == the_file_list->count && iflags == ITEM_IS_NEW)		;	else if (ndx < 0 || ndx >= the_file_list->count) {		rprintf(FERROR, "Invalid file index %d (count=%d) [%s]\n",			ndx, the_file_list->count, who_am_i());		exit_cleanup(RERR_PROTOCOL);	} else if (iflags == ITEM_IS_NEW) {		rprintf(FERROR, "Invalid itemized flag word [%s]\n",			who_am_i());		exit_cleanup(RERR_PROTOCOL);	}	*buf = '\0';	if ((!(iflags & ITEM_UPDATING) || !S_ISREG(the_file_list->files[ndx]->mode)) && f_out >= 0) {		write_int(f_out, ndx);		write_shortint(f_out, iflags);	}	return iflags;}