exchange

commit dbf84c5121543754d10d04be6182da0603754e32
parent d7962e0172fcf32dde62125eac83c4c3816666da
Author: Christian Grothoff <christian@grothoff.org>
Date:   Thu, 18 Jan 2024 22:23:37 +0100

fix #8105

Diffstat:
M
src/lib/exchange_api_handle.c
 | 
11
++++++++---

1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/src/lib/exchange_api_handle.c b/src/lib/exchange_api_handle.c
@@ -544,8 +544,8 @@ parse_json_auditor (struct TALER_EXCHANGE_AuditorInformation *auditor,
 {
   const json_t *keys;
   json_t *key;
-  unsigned int off;
-  unsigned int pos;
+  size_t off;
+  size_t pos;
   const char *auditor_url;
   struct GNUNET_JSON_Specification spec[] = {
     GNUNET_JSON_spec_fixed_auto ("auditor_pub",
@@ -637,7 +637,12 @@ parse_json_auditor (struct TALER_EXCHANGE_AuditorInformation *auditor,
     auditor->denom_keys[pos].auditor_sig = auditor_sig;
     pos++;
   }
-  auditor->num_denom_keys = pos;
+  if (pos > UINT_MAX)
+  {
+    GNUNET_break (0);
+    return GNUNET_SYSERR;
+  }
+  auditor->num_denom_keys = (unsigned int) pos;
   return GNUNET_OK;
 }