[taler-exchange] branch master updated: fix #8100

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grothoff pushed a commit to branch master
in repository exchange.

The following commit(s) were added to refs/heads/master by this push:
     new 3db8ffe5 fix #8100
3db8ffe5 is described below

commit 3db8ffe54274ee94cc6204463b6c425ba7bcebf7
Author: Christian Grothoff <christian@grothoff.org>
AuthorDate: Wed Jan 17 19:34:15 2024 +0100

    fix #8100
---
 src/lib/exchange_api_common.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/lib/exchange_api_common.c b/src/lib/exchange_api_common.c
index 23963265..417fdf35 100644
--- a/src/lib/exchange_api_common.c
+++ b/src/lib/exchange_api_common.c
@@ -414,18 +414,22 @@ parse_restrictions (const json_t *jresta,
                     unsigned int *resta_len,
                     struct TALER_EXCHANGE_AccountRestriction **resta)
 {
+  size_t alen;
+
   if (! json_is_array (jresta))
   {
     GNUNET_break_op (0);
     return GNUNET_SYSERR;
   }
-  *resta_len = json_array_size (jresta);
-  if (0 == *resta_len)
+  alen = json_array_size (jresta);
+  if (0 == alen)
   {
     /* no restrictions, perfectly OK */
     *resta = NULL;
     return GNUNET_OK;
   }
+  *resta_len = (unsigned int) alen;
+  GNUNET_assert (alen == *resta_len);
   *resta = GNUNET_new_array (*resta_len,
                              struct TALER_EXCHANGE_AccountRestriction);
   for (unsigned int i = 0; i<*resta_len; i++)

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