7 files changed, 34 insertions, 9 deletions
diff --git a/src/exchange-lib/exchange_api_common.c b/src/exchange-lib/exchange_api_common.c
index de05348f..6b0aa6ff 100644
--- a/src/exchange-lib/exchange_api_common.c
+++ b/src/exchange-lib/exchange_api_common.c
@@ -325,4 +325,29 @@ TALER_EXCHANGE_verify_coin_history (const char *currency,
 }
 
 
+/**
+ * Obtain meta data about an exchange (online) signing
+ * key.
+ *
+ * @param keys from where to obtain the meta data
+ * @param exchange_pub public key to lookup
+ * @return NULL on error (@a exchange_pub not known)
+ */
+const struct TALER_EXCHANGE_SigningPublicKey *
+TALER_EXCHANGE_get_exchange_signing_key_info (const struct TALER_EXCHANGE_Keys *keys,
+					      const struct TALER_ExchangePublicKeyP *exchange_pub)
+{
+  for (unsigned int i=0;i<keys->num_sign_keys;i++)
+  {
+    const struct TALER_EXCHANGE_SigningPublicKey *spk;
+
+    spk = &keys->sign_keys[i];
+    if (0 == memcmp (exchange_pub,
+		     &spk->key,
+		     sizeof (struct TALER_ExchangePublicKeyP)))
+      return spk;
+  }
+  return NULL;
+}
+
 /* end of exchange_api_common.c */
diff --git a/src/exchange-lib/testing_api_cmd_deposit.c b/src/exchange-lib/testing_api_cmd_deposit.c
index 4f3757f5..59209fcc 100644
--- a/src/exchange-lib/testing_api_cmd_deposit.c
+++ b/src/exchange-lib/testing_api_cmd_deposit.c
@@ -246,7 +246,7 @@ deposit_run (void *cls,
   struct DepositState *ds = cls;
   const struct TALER_TESTING_Command *coin_cmd;
   struct TALER_TESTING_Command *this_cmd;
-  struct TALER_CoinSpendPrivateKeyP *coin_priv;
+  const struct TALER_CoinSpendPrivateKeyP *coin_priv;
   struct TALER_CoinSpendPublicKeyP coin_pub;
   const struct TALER_EXCHANGE_DenomPublicKey *denom_pub;
   struct TALER_DenominationSignature *denom_pub_sig;
@@ -450,7 +450,7 @@ deposit_traits (void *cls,
   struct DepositState *ds = cls;
   const struct TALER_TESTING_Command *coin_cmd;
   /* Will point to coin cmd internals. */
-  struct TALER_CoinSpendPrivateKeyP *coin_spent_priv;
+  const struct TALER_CoinSpendPrivateKeyP *coin_spent_priv;
 
   coin_cmd = TALER_TESTING_interpreter_lookup_command
     (ds->is,
diff --git a/src/exchange-lib/testing_api_cmd_payback.c b/src/exchange-lib/testing_api_cmd_payback.c
index 56026162..43118ef0 100644
--- a/src/exchange-lib/testing_api_cmd_payback.c
+++ b/src/exchange-lib/testing_api_cmd_payback.c
@@ -224,7 +224,7 @@ payback_run (void *cls,
 {
   struct PaybackState *ps = cls;
   const struct TALER_TESTING_Command *coin_cmd;
-  struct TALER_CoinSpendPrivateKeyP *coin_priv;
+  const struct TALER_CoinSpendPrivateKeyP *coin_priv;
   struct TALER_DenominationBlindingKeyP *blinding_key;
   const struct TALER_EXCHANGE_DenomPublicKey *denom_pub;
   struct TALER_DenominationSignature *coin_sig;
diff --git a/src/exchange-lib/testing_api_cmd_refresh.c b/src/exchange-lib/testing_api_cmd_refresh.c
index 982b4d29..93939bf8 100644
--- a/src/exchange-lib/testing_api_cmd_refresh.c
+++ b/src/exchange-lib/testing_api_cmd_refresh.c
@@ -715,7 +715,7 @@ refresh_link_run (void *cls,
     }
   }
 
-  struct TALER_CoinSpendPrivateKeyP *coin_priv;
+  const struct TALER_CoinSpendPrivateKeyP *coin_priv;
   if (GNUNET_OK != TALER_TESTING_get_trait_coin_priv
     (coin_cmd, 0, &coin_priv))
   {
@@ -903,7 +903,7 @@ refresh_melt_run (void *cls,
     (num_fresh_coins,
      struct TALER_EXCHANGE_DenomPublicKey);
   {
-    struct TALER_CoinSpendPrivateKeyP *melt_priv;
+    const struct TALER_CoinSpendPrivateKeyP *melt_priv;
     struct TALER_Amount melt_amount;
     struct TALER_Amount fresh_amount;
     struct TALER_DenominationSignature *melt_sig;
diff --git a/src/exchange-lib/testing_api_cmd_refund.c b/src/exchange-lib/testing_api_cmd_refund.c
index 136ee631..de70da27 100644
--- a/src/exchange-lib/testing_api_cmd_refund.c
+++ b/src/exchange-lib/testing_api_cmd_refund.c
@@ -143,7 +143,7 @@ refund_run (void *cls,
             struct TALER_TESTING_Interpreter *is)
 {
   struct RefundState *rs = cls;
-  struct TALER_CoinSpendPrivateKeyP *coin_priv;
+  const struct TALER_CoinSpendPrivateKeyP *coin_priv;
   struct TALER_CoinSpendPublicKeyP coin;
   const char *contract_terms;
   struct GNUNET_HashCode h_contract_terms;
diff --git a/src/exchange-lib/testing_api_cmd_track.c b/src/exchange-lib/testing_api_cmd_track.c
index c7fbf408..201ac3f9 100644
--- a/src/exchange-lib/testing_api_cmd_track.c
+++ b/src/exchange-lib/testing_api_cmd_track.c
@@ -259,14 +259,14 @@ deposit_wtid_cb
  * @param cmd the command to execute.
  * @param is the interpreter state.
  */
-void
+static void
 track_transaction_run (void *cls,
                        const struct TALER_TESTING_Command *cmd,
                        struct TALER_TESTING_Interpreter *is)
 {
   struct TrackTransactionState *tts = cls;
   const struct TALER_TESTING_Command *transaction_cmd;
-  struct TALER_CoinSpendPrivateKeyP *coin_priv;
+  const struct TALER_CoinSpendPrivateKeyP *coin_priv;
   struct TALER_CoinSpendPublicKeyP coin_pub;
   const char *contract_terms;
   const json_t *wire_details;
diff --git a/src/exchange-lib/testing_api_trait_coin_priv.c b/src/exchange-lib/testing_api_trait_coin_priv.c
index 5e9193f1..baaa794b 100644
--- a/src/exchange-lib/testing_api_trait_coin_priv.c
+++ b/src/exchange-lib/testing_api_trait_coin_priv.c
@@ -46,7 +46,7 @@ int
 TALER_TESTING_get_trait_coin_priv
   (const struct TALER_TESTING_Command *cmd,
    unsigned int index,
-   struct TALER_CoinSpendPrivateKeyP **coin_priv)
+   const struct TALER_CoinSpendPrivateKeyP **coin_priv)
 {
   return cmd->traits (cmd->cls,
                       (void **) coin_priv,