+ iflags = protocol_version >= 29 ? read_shortint(f_in)
+ : ITEM_TRANSFER | ITEM_MISSING_DATA;
+
+ /* Honor the old-style keep-alive indicator. */
+ if (protocol_version < 30
+ && ndx == cur_flist->count && iflags == ITEM_IS_NEW) {
+ if (am_sender)
+ maybe_send_keepalive();
+ goto read_loop;
+ }
+
+ if (!(flist = flist_for_ndx(ndx))) {
+ invalid_ndx:
+ rprintf(FERROR,
+ "Invalid file index: %d (%d - %d) with iflags %x [%s]\n",
+ ndx, first_flist->ndx_start + first_flist->ndx_start,
+ first_flist->prev->ndx_start + first_flist->ndx_start
+ + first_flist->prev->count - 1, iflags, who_am_i());
+ exit_cleanup(RERR_PROTOCOL);
+ }
+ cur_flist = flist;
+
+ if (iflags & ITEM_BASIS_TYPE_FOLLOWS)
+ fnamecmp_type = read_byte(f_in);
+ *type_ptr = fnamecmp_type;
+
+ if (iflags & ITEM_XNAME_FOLLOWS) {
+ if ((len = read_vstring(f_in, buf, MAXPATHLEN)) < 0)
+ exit_cleanup(RERR_PROTOCOL);
+ } else {
+ *buf = '\0';
+ len = -1;
+ }
+ *len_ptr = len;
+
+ if (iflags & ITEM_TRANSFER) {
+ int i = ndx - cur_flist->ndx_start;
+ if (!S_ISREG(cur_flist->files[i]->mode)) {
+ rprintf(FERROR,
+ "received request to transfer non-regular file: %d [%s]\n",
+ ndx, who_am_i());
+ exit_cleanup(RERR_PROTOCOL);