From: Michael Poole <mdpoole@troilus.org>
Date: Fri, 25 Apr 2014 00:27:03 +0000 (-0400)
Subject: iauth: Send an empty "u" message on ident lookup failure.
X-Git-Url: http://git.pk910.de/?p=ircu2.10.12-pk.git;a=commitdiff_plain;h=d0a284c68368f5cd58309293e936f82e032f7ae8

iauth: Send an empty "u" message on ident lookup failure.

Otherwise an iauthd might wait indefinitely (i.e. too long) before trying
to make a decision on the client.
---

diff --git a/doc/readme.iauth b/doc/readme.iauth
index 54a011f..1962d9c 100644
--- a/doc/readme.iauth
+++ b/doc/readme.iauth
@@ -174,12 +174,14 @@ Compatibility: ircd only sends the <username> parameter.
 
 u - Client Username
 Syntax: <id> u <username>
+Syntax: <id> u
 Example: 5 u notbuddha
 States: REGISTER(1)
 Next State: -
 Comments: Indicates a more reliable username for the client.
 Compatibility: This is an Undernet extension and ircd does not send
   it.  It is enabled by the iauth instance requesting the U policy.
+  If the identd lookup fails for a user, no username is passed.
 
 n - Client Nickname
 Syntax: <id> n <nickname>
diff --git a/ircd/s_auth.c b/ircd/s_auth.c
index ddeabbc..83693a2 100644
--- a/ircd/s_auth.c
+++ b/ircd/s_auth.c
@@ -679,6 +679,8 @@ static void read_auth_reply(struct AuthRequest* auth)
     if (IsUserPort(auth->client))
       sendheader(auth->client, REPORT_FAIL_ID);
     ++ServerStats->is_abad;
+    if (IAuthHas(iauth, IAUTH_UNDERNET))
+      sendto_iauth(auth->client, "u");
   } else {
     if (IsUserPort(auth->client))
       sendheader(auth->client, REPORT_FIN_ID);