From 0a548f91e035d74fc9767aa721db6aec83fe2c22 Mon Sep 17 00:00:00 2001
From: Robbie Harwood <rharwood@redhat.com>
Date: Wed, 14 Aug 2019 17:20:26 -0400
Subject: [PATCH] Support empty values in gss_key_value_set_desc

Effectively, this performs the None -> NULL transformation between Python and
C.  Currently both MIT krb5 and Heimdal will both treat NULL as an unspecified
value, which causes it to be skipped.

Resolves: #182
---
 gssapi/raw/ext_cred_store.pyx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gssapi/raw/ext_cred_store.pyx b/gssapi/raw/ext_cred_store.pyx
index 9ee57c36..0a65fe0a 100644
--- a/gssapi/raw/ext_cred_store.pyx
+++ b/gssapi/raw/ext_cred_store.pyx
@@ -83,7 +83,8 @@ cdef gss_key_value_set_desc* c_create_key_value_set(dict values) except NULL:
 
     for (i, (k, v)) in enumerate(values.items()):
         res.elements[i].key = k
-        res.elements[i].value = v
+        if v:
+            res.elements[i].value = v
 
     return res