exchange

commit 281e292bb1edc082ac0cf4ab6ba6af11a1d21adc
parent 6b409f7c1f5b640108b5e4da56d819c43aee3ccd
Author: Christian Grothoff <christian@grothoff.org>
Date:   Sun, 11 Oct 2026 14:05:23 +0200

fail if destination is ahead of us

Diffstat:
M
src/auditor/taler-auditor-sync.c
 | 
13
+++++++++++++

1 file changed, 13 insertions(+), 0 deletions(-)
diff --git a/src/auditor/taler-auditor-sync.c b/src/auditor/taler-auditor-sync.c
@@ -663,6 +663,19 @@ transact (void)
 
     if (table->start_serial == table->end_serial)
       continue;
+    if (table->start_serial > table->end_serial)
+    {
+      /* The destination is ahead of the source: either we are copying
+         from the wrong database, or the source was restored from an old
+         backup.  Either way, continuing would produce a bogus copy. */
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "Destination is ahead of source for table `%s' (%llu > %llu); aborting\n",
+                  rt_name (table->rt),
+                  (unsigned long long) table->start_serial,
+                  (unsigned long long) table->end_serial);
+      global_ret = EXIT_FAILURE;
+      return GNUNET_SYSERR;
+    }
     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
                 "Replicating table `%s' from %llu to %llu\n",
                 rt_name (table->rt),