From 4bb815a32ed1fa20dec415b3b018ff18c014c19c Mon Sep 17 00:00:00 2001
From: Isaac Boukris <iboukris@gmail.com>
Date: Sun, 31 May 2015 23:21:15 +0200
Subject: HTTP-NTLM: fail auth on connection close instead of looping

Bug: https://github.com/bagder/curl/issues/256
---
 lib/http.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'lib')

diff --git a/lib/http.c b/lib/http.c
index ef55364ee..8e422f0bf 100644
--- a/lib/http.c
+++ b/lib/http.c
@@ -3087,6 +3087,19 @@ CURLcode Curl_http_readwrite_headers(struct SessionHandle *data,
         }
       }
 
+      /* At this point we have some idea about the fate of the connection.
+         If we are closing the connection it may result auth failure. */
+#if defined(USE_NTLM)
+      if(conn->bits.close &&
+         (((data->req.httpcode == 401) &&
+           (conn->ntlm.state == NTLMSTATE_TYPE2)) ||
+          ((data->req.httpcode == 407) &&
+           (conn->proxyntlm.state == NTLMSTATE_TYPE2)))) {
+        infof(data, "Connection closure while negotiating auth (HTTP 1.0?)\n");
+        data->state.authproblem = TRUE;
+      }
+#endif
+
       /*
        * When all the headers have been parsed, see if we should give
        * up and return an error.
-- 
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