[age-withdraw] age-withdraw commit- and reveal-handlers implemented, 12/n

The handlers for the commit- and reveal-phases of the age-withdraw
HTTP-endpoints are implemented, yet not active.

Still missing:

- support for age-withdraw is missing in lib/.
- tests

1 files changed, 24 insertions, 0 deletions

diff --git a/src/include/taler_util.h b/src/include/taler_util.h
index 1de264c12..1f3a4c706 100644
--- a/src/include/taler_util.h
+++ b/src/include/taler_util.h
@@ -558,6 +558,18 @@ char *
 TALER_age_mask_to_string (
   const struct TALER_AgeMask *mask);
 
+/*
+ * @brief returns the age group of a given age for a given age mask
+ *
+ * @param mask Age mask
+ * @param age The given age
+ * @return age group
+ */
+uint8_t
+TALER_get_age_group (
+  const struct TALER_AgeMask *mask,
+  uint8_t age);
+
 /**
  * @brief Parses a JSON object { "age_groups": "a:b:...y:z" }.
  *
@@ -570,6 +582,18 @@ TALER_JSON_parse_age_groups (const json_t *root,
                              struct TALER_AgeMask *mask);
 
 
+/* @brief Return the lowest age in the corresponding group for a given age
+ * according the given age mask.
+ *
+ * @param[IN] mask age mask
+ * @param[IN] age age to check
+ * @return lowest age in corresponding age group
+ */
+uint8_t
+TALER_get_lowest_age (
+  const struct TALER_AgeMask *mask,
+  uint8_t age);
+
 /**
  * Handle to an external process that will assist
  * with some JSON-to-JSON conversion.