krb5 commit: Disable canonicalization in ccselect tests

[Greg Hudson]

https://github.com/krb5/krb5/commit/b5457d8fb719a583b89e1ace186301a144e2c4c9
commit b5457d8fb719a583b89e1ace186301a144e2c4c9
Author: Greg Hudson <ghudson at mit.edu>
Date:   Wed Jul 4 16:11:45 2018 +0000

    Disable canonicalization in ccselect tests
    
    DNS canonicalization can interfere with the fallback tests by changing
    "localhost" to have multiple components, or (less likely) changing the
    parent domain of foo.krbtest.com or foo.krbtest2.com.

 src/tests/gssapi/t_ccselect.py |   11 +++++++----
 1 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/tests/gssapi/t_ccselect.py b/src/tests/gssapi/t_ccselect.py
index 3503f92..2c65d39 100755
--- a/src/tests/gssapi/t_ccselect.py
+++ b/src/tests/gssapi/t_ccselect.py
@@ -24,10 +24,13 @@
 
 from k5test import *
 
-# Create two independent realms (no cross-realm TGTs).
-r1 = K5Realm(create_user=False)
-r2 = K5Realm(create_user=False, realm='KRBTEST2.COM', portbase=62000,
-             testdir=os.path.join(r1.testdir, 'r2'))
+# Create two independent realms (no cross-realm TGTs).  For the
+# fallback realm tests we need to control the precise server hostname,
+# so turn off DNS canonicalization.
+conf = {'libdefaults': {'dns_canonicalize_hostname': 'false'}}
+r1 = K5Realm(create_user=False, krb5_conf=conf)
+r2 = K5Realm(create_user=False, krb5_conf=conf, realm='KRBTEST2.COM',
+             portbase=62000, testdir=os.path.join(r1.testdir, 'r2'))
 
 host1 = 'p:' + r1.host_princ
 host2 = 'p:' + r2.host_princ