From f1c18611d7b6ff9e80a087c9c9042cfdfd821a0a Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Sun, 13 Dec 2020 12:09:51 +0100
Subject: generate logic to lookup HTTP status code by ec, also safely

---
 gnu-taler-error-codes/c.footer | 18 +++++++++++++++++-
 gnu-taler-error-codes/h.footer | 14 +++++++++++++-
 2 files changed, 30 insertions(+), 2 deletions(-)

(limited to 'gnu-taler-error-codes')

diff --git a/gnu-taler-error-codes/c.footer b/gnu-taler-error-codes/c.footer
index 118aa08..163901f 100644
--- a/gnu-taler-error-codes/c.footer
+++ b/gnu-taler-error-codes/c.footer
@@ -27,7 +27,7 @@ TALER_ErrorCode_get_hint (enum TALER_ErrorCode ec)
 }
 
 
-const unsigned int
+unsigned int
 TALER_ErrorCode_get_http_status (enum TALER_ErrorCode ec)
 {
   unsigned int lower = 0;
@@ -51,3 +51,19 @@ TALER_ErrorCode_get_http_status (enum TALER_ErrorCode ec)
   }
   return UINT_MAX;
 }
+
+
+unsigned int
+TALER_ErrorCode_get_http_status_safe (enum TALER_ErrorCode ec)
+{
+  unsigned int hc;
+
+  hc = TALER_ErrorCode_get_http_status (ec);
+  if ( (0 == hc) ||
+       (UINT_MAX == hc) )
+  {
+    GNUNET_break (0);
+    return MHD_HTTP_INTERNAL_SERVER_ERROR;
+  }
+  return hc;
+}
diff --git a/gnu-taler-error-codes/h.footer b/gnu-taler-error-codes/h.footer
index 67d90c8..714e7f4 100644
--- a/gnu-taler-error-codes/h.footer
+++ b/gnu-taler-error-codes/h.footer
@@ -19,10 +19,22 @@ TALER_ErrorCode_get_hint (enum TALER_ErrorCode ec);
  * @param ec the error code.
  * @return the HTTP status code for the given @a ec, UINT_MAX if not found
  */
-const unsigned int
+unsigned int
 TALER_ErrorCode_get_http_status (enum TALER_ErrorCode ec);
 
 
+/**
+ * Return HTTP status for a given error code that is guaranteed
+ * to work (no corner cases).
+ *
+ * @param ec the error code.
+ * @return the HTTP status code for the given @a ec, 500 if
+ *         the @a ec is not found or is a client-side code
+ */
+unsigned int
+TALER_ErrorCode_get_http_status_safe (enum TALER_ErrorCode ec);
+
+
 #if 0 /* keep Emacsens' auto-indent happy */
 {
 #endif
-- 
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