int read_ndx_and_attrs(int f_in, int f_out, int *iflag_ptr, uchar *type_ptr, char *buf, int *len_ptr) { int len, iflags = 0; struct file_list *flist; uchar fnamecmp_type = FNAMECMP_FNAME; int ndx; read_loop: while (1) { ndx = read_ndx(f_in); if (ndx >= 0) break; if (ndx == NDX_DONE) return ndx; if (ndx == NDX_DEL_STATS) { read_del_stats(f_in); if (am_sender && am_server) write_del_stats(f_out); continue; } if (!inc_recurse || am_sender) { int last; if (first_flist) last = first_flist->prev->ndx_start + first_flist->prev->used - 1; else last = -1; rprintf(FERROR, "Invalid file index: %d (%d - %d) [%s]\n", ndx, NDX_DONE, last, who_am_i()); exit_cleanup(RERR_PROTOCOL); } if (ndx == NDX_FLIST_EOF) { flist_eof = 1; if (DEBUG_GTE(FLIST, 3)) rprintf(FINFO, "[%s] flist_eof=1\n", who_am_i()); write_int(f_out, NDX_FLIST_EOF); continue; } ndx = NDX_FLIST_OFFSET - ndx; if (ndx < 0 || ndx >= dir_flist->used) { ndx = NDX_FLIST_OFFSET - ndx; rprintf(FERROR, "Invalid dir index: %d (%d - %d) [%s]\n", ndx, NDX_FLIST_OFFSET, NDX_FLIST_OFFSET - dir_flist->used + 1, who_am_i()); exit_cleanup(RERR_PROTOCOL); } if (DEBUG_GTE(FLIST, 2)) { rprintf(FINFO, "[%s] receiving flist for dir %d\n", who_am_i(), ndx); } /* Send all the data we read for this flist to the generator. */ start_flist_forward(ndx); flist = recv_file_list(f_in); flist->parent_ndx = ndx; stop_flist_forward(); } iflags = protocol_version >= 29 ? read_shortint(f_in) : ITEM_TRANSFER | ITEM_MISSING_DATA; /* Support the protocol-29 keep-alive style. */ if (protocol_version < 30 && ndx == cur_flist->used && iflags == ITEM_IS_NEW) { if (am_sender) maybe_send_keepalive(time(NULL), MSK_ALLOW_FLUSH); goto read_loop; } flist = flist_for_ndx(ndx, "read_ndx_and_attrs"); if (flist != cur_flist) { cur_flist = flist; if (am_sender) { file_old_total = cur_flist->used; for (flist = first_flist; flist != cur_flist; flist = flist->next) file_old_total += flist->used; } } 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 (i < 0 || !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); } } *iflag_ptr = iflags; return ndx; }
int read_ndx_and_attrs(int f_in, int *iflag_ptr, uchar *type_ptr, char *buf, int *len_ptr) { int len, iflags = 0; struct file_list *flist; uchar fnamecmp_type = FNAMECMP_FNAME; int ndx, save_verbose = verbose; read_loop: while (1) { ndx = read_ndx(f_in); if (ndx >= 0) break; if (ndx == NDX_DONE) return ndx; if (!inc_recurse || am_sender) { int last; if (first_flist) last = first_flist->prev->ndx_start + first_flist->prev->used - 1; else last = -1; rprintf(FERROR, "Invalid file index: %d (%d - %d) [%s]\n", ndx, NDX_DONE, last, who_am_i()); exit_cleanup(RERR_PROTOCOL); } if (ndx == NDX_FLIST_EOF) { flist_eof = 1; send_msg(MSG_FLIST_EOF, "", 0, 0); continue; } ndx = NDX_FLIST_OFFSET - ndx; if (ndx < 0 || ndx >= dir_flist->used) { ndx = NDX_FLIST_OFFSET - ndx; rprintf(FERROR, "Invalid dir index: %d (%d - %d) [%s]\n", ndx, NDX_FLIST_OFFSET, NDX_FLIST_OFFSET - dir_flist->used + 1, who_am_i()); exit_cleanup(RERR_PROTOCOL); } /* Send everything read from f_in to msg_fd_out. */ if (verbose > 3) { rprintf(FINFO, "[%s] receiving flist for dir %d\n", who_am_i(), ndx); } verbose = 0; send_msg_int(MSG_FLIST, ndx); start_flist_forward(f_in); flist = recv_file_list(f_in); flist->parent_ndx = ndx; stop_flist_forward(); verbose = save_verbose; } iflags = protocol_version >= 29 ? read_shortint(f_in) : ITEM_TRANSFER | ITEM_MISSING_DATA; /* Support the protocol-29 keep-alive style. */ if (protocol_version < 30 && ndx == cur_flist->used && iflags == ITEM_IS_NEW) { if (am_sender) maybe_send_keepalive(); goto read_loop; } cur_flist = flist_for_ndx(ndx, "read_ndx_and_attrs"); 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; struct file_struct *file = cur_flist->files[i]; if (i < 0 || !(S_ISREG(file->mode) || (copy_devices && IS_DEVICE(file->mode)))) { rprintf(FERROR, "received request to transfer non-regular file: %d [%s]\n", ndx, who_am_i()); exit_cleanup(RERR_PROTOCOL); } } *iflag_ptr = iflags; return ndx; }