+ if (!prev_name) {
+ struct file_struct *prev_file;
+
+ if (!flist) {
+ /* The previous file was skipped, so this one is
+ * treated as if it were the first in its group. */
+ if (DEBUG_GTE(HLINK, 2)) {
+ rprintf(FINFO, "hlink for %d (%s,%d): virtual first\n",
+ ndx, f_name(file, NULL), gnum);
+ }
+ return 0;
+ }
+
+ prev_file = flist->files[prev_ndx - flist->ndx_start];
+
+ /* Is the previous link not complete yet? */
+ if (!(prev_file->flags & FLAG_HLINK_DONE)) {
+ /* Is the previous link being transferred? */
+ if (prev_file->flags & FLAG_FILE_SENT) {
+ /* Add ourselves to the list of files that will
+ * be updated when the transfer completes, and
+ * mark ourself as waiting for the transfer. */
+ F_HL_PREV(file) = F_HL_PREV(prev_file);
+ F_HL_PREV(prev_file) = ndx;
+ file->flags |= FLAG_FILE_SENT;
+ cur_flist->in_progress++;
+ if (DEBUG_GTE(HLINK, 2)) {
+ rprintf(FINFO, "hlink for %d (%s,%d): waiting for %d\n",
+ ndx, f_name(file, NULL), gnum, F_HL_PREV(file));
+ }
+ return 1;
+ }
+ if (DEBUG_GTE(HLINK, 2)) {
+ rprintf(FINFO, "hlink for %d (%s,%d): looking for a leader\n",
+ ndx, f_name(file, NULL), gnum);
+ }
+ return 0;
+ }
+
+ /* There is a finished file to link with! */
+ if (!(prev_file->flags & FLAG_HLINK_FIRST)) {
+ /* The previous previous is FIRST when prev is not. */
+ prev_name = realname = check_prior(prev_file, gnum, &prev_ndx, &flist);
+ /* Update our previous pointer to point to the FIRST. */
+ F_HL_PREV(file) = prev_ndx;
+ }
+
+ if (!prev_name) {
+ int alt_dest;
+
+ assert(flist != NULL);
+ prev_file = flist->files[prev_ndx - flist->ndx_start];
+ /* F_HL_PREV() is alt_dest value when DONE && FIRST. */
+ alt_dest = F_HL_PREV(prev_file);
+ if (DEBUG_GTE(HLINK, 2)) {
+ rprintf(FINFO, "hlink for %d (%s,%d): found flist match (alt %d)\n",
+ ndx, f_name(file, NULL), gnum, alt_dest);
+ }
+
+ if (alt_dest >= 0 && dry_run) {
+ pathjoin(namebuf, MAXPATHLEN, basis_dir[alt_dest],
+ f_name(prev_file, NULL));
+ prev_name = namebuf;
+ realname = f_name(prev_file, altbuf);
+ } else {
+ prev_name = f_name(prev_file, namebuf);
+ realname = prev_name;
+ }
+ }
+ }
+
+ if (DEBUG_GTE(HLINK, 2)) {
+ rprintf(FINFO, "hlink for %d (%s,%d): leader is %d (%s)\n",
+ ndx, f_name(file, NULL), gnum, prev_ndx, prev_name);
+ }
+
+ if (link_stat(prev_name, &prev_st, 0) < 0) {
+ rsyserr(FERROR_XFER, errno, "stat %s failed",
+ full_fname(prev_name));
+ return -1;
+ }
+
+ if (statret < 0 && basis_dir[0] != NULL) {
+ /* If we match an alt-dest item, we don't output this as a change. */
+ char cmpbuf[MAXPATHLEN];
+ stat_x alt_sx;
+ int j = 0;
+#ifdef SUPPORT_ACLS
+ alt_sx.acc_acl = alt_sx.def_acl = NULL;
+#endif
+#ifdef SUPPORT_XATTRS
+ alt_sx.xattr = NULL;
+#endif
+ do {
+ pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
+ if (link_stat(cmpbuf, &alt_sx.st, 0) < 0)
+ continue;
+ if (link_dest) {
+ if (prev_st.st_dev != alt_sx.st.st_dev
+ || prev_st.st_ino != alt_sx.st.st_ino)