Attempt to use hostnames specified in Travis

.travis.yml

@@ -20,6 +20,10 @@ cache:
   directories:
     - $HOME/.cache/pip
 addons:
+  hostname: ca
+  hosts:
+    - ca.example.lan ca
+    - router.example.lan router
   apt:
     packages:
     - python-xattr

certidude/const.py

@@ -14,16 +14,11 @@ SIGNER_SOCKET_PATH = os.path.join(CONFIG_DIR, "signer.sock") if os.getuid() else
 SIGNER_PID_PATH = os.path.join(CONFIG_DIR, "signer.pid") if os.getuid() else "/run/certidude/signer.pid"
 SIGNER_LOG_PATH = os.path.join(CONFIG_DIR, "signer.log") if os.getuid() else "/var/log/certidude-signer.log"
 
-# Work around the 'asn1 encoding routines:ASN1_mbstring_ncopy:string too long'
-# issue within OpenSSL ASN1 parser while running on Travis
-if os.getenv("TRAVIS"):
-    FQDN = "buildbot"
-else:
-    try:
-        FQDN = socket.getaddrinfo(socket.gethostname(), 0, socket.AF_INET, 0, 0, socket.AI_CANONNAME)[0][3]
-    except socket.gaierror:
-        click.echo("Failed to resolve fully qualified hostname of this machine, make sure hostname -f works")
-        sys.exit(254)
+try:
+    FQDN = socket.getaddrinfo(socket.gethostname(), 0, socket.AF_INET, 0, 0, socket.AI_CANONNAME)[0][3]
+except socket.gaierror:
+    click.echo("Failed to resolve fully qualified hostname of this machine, make sure hostname -f works")
+    sys.exit(254)
 
 if "." in FQDN:
     HOSTNAME, DOMAIN = FQDN.split(".", 1)