exchange

commit fac59c52785166518f2cf286f59f1e698f3f5ee4
parent 361fbdfcbe4101e35ba0e7d2934207fbdfcd2982
Author: Christian Grothoff <grothoff@gnunet.org>
Date:   Mon, 17 Aug 2026 17:17:41 +0200

reject shard size of 0

Diffstat:
M
src/exchange/taler-exchange-transfer.c
 | 
8
++++++++
M
src/exchange/taler-exchange-wirewatch.c
 | 
10
++++++++++

2 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/src/exchange/taler-exchange-transfer.c b/src/exchange/taler-exchange-transfer.c
@@ -863,6 +863,14 @@ run (void *cls,
   (void) cfgfile;
 
   cfg = c;
+  if (0 == shard_size)
+  {
+    /* Would make #select_shard() create zero-width shards forever. */
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Shard size (-S) must be positive\n");
+    global_ret = EXIT_INVALIDARGUMENT;
+    return;
+  }
   if (GNUNET_OK != parse_transfer_config ())
   {
     cfg = NULL;
diff --git a/src/exchange/taler-exchange-wirewatch.c b/src/exchange/taler-exchange-wirewatch.c
@@ -1022,6 +1022,16 @@ run (void *cls,
   cfg = c;
   GNUNET_SCHEDULER_add_shutdown (&shutdown_task,
                                  cls);
+  if (0 == shard_size)
+  {
+    /* Would give us empty shards, and thus fail the assertion in
+       #continue_with_shard(). */
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Shard size (-S) must be positive\n");
+    global_ret = EXIT_INVALIDARGUMENT;
+    GNUNET_SCHEDULER_shutdown ();
+    return;
+  }
   if (GNUNET_OK !=
       exchange_serve_process_config ())
   {