do not treat failure of gss_init_sec_context() with --negotiate as fatal

This commit fixes a major incompatibility introduced in curl-7.64.1.

Bug: https://github.com/curl/curl/issues/3726

0001-curl-7.64.1-negotiate-without-ticket.patch

@@ -0,0 +1,68 @@
+From f7c66081721ac54f68457f07994487f416db383f Mon Sep 17 00:00:00 2001
+From: Kamil Dudka <kdudka@redhat.com>
+Date: Mon, 6 May 2019 14:16:35 +0200
+Subject: [PATCH] spnego_gssapi: fix return code on gss_init_sec_context()
+ failure
+
+Fixes #3726
+Closes #3849
+
+Upstream-commit: f65845c1eccc02385cdfb22bf2e521e670f7b295
+Signed-off-by: Kamil Dudka <kdudka@redhat.com>
+---
+ lib/vauth/spnego_gssapi.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/vauth/spnego_gssapi.c b/lib/vauth/spnego_gssapi.c
+index 7c4bd4b59..de8bde2ba 100644
+--- a/lib/vauth/spnego_gssapi.c
++++ b/lib/vauth/spnego_gssapi.c
+@@ -170,7 +170,7 @@ CURLcode Curl_auth_decode_spnego_message(struct Curl_easy *data,
+     Curl_gss_log_error(data, "gss_init_sec_context() failed: ",
+                        major_status, minor_status);
+ 
+-    return CURLE_OUT_OF_MEMORY;
++    return CURLE_LOGIN_DENIED;
+   }
+ 
+   if(!output_token.value || !output_token.length) {
+-- 
+2.20.1
+
+From ce0dbcf6f028c84adf4ff3704c04a09d4450a596 Mon Sep 17 00:00:00 2001
+From: Kamil Dudka <kdudka@redhat.com>
+Date: Mon, 6 May 2019 14:32:00 +0200
+Subject: [PATCH] http_negotiate: do not treat failure of
+ gss_init_sec_context() as fatal
+
+Fixes #3726
+Closes #3849
+
+Upstream-commit: f4603708af08f454bca8b74095d0af40a4516512
+Signed-off-by: Kamil Dudka <kdudka@redhat.com>
+---
+ lib/http_negotiate.c | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/lib/http_negotiate.c b/lib/http_negotiate.c
+index 9415236fb..201c3a785 100644
+--- a/lib/http_negotiate.c
++++ b/lib/http_negotiate.c
+@@ -143,7 +143,13 @@ CURLcode Curl_output_negotiate(struct connectdata *conn, bool proxy)
+     }
+     if(!neg_ctx->context) {
+       result = Curl_input_negotiate(conn, proxy, "Negotiate");
+-      if(result)
++      if(result == CURLE_LOGIN_DENIED) {
++        /* negotiate auth failed, let's continue unauthenticated to stay
++         * compatible with the behavior before curl-7_64_0-158-g6c6035532 */
++        conn->data->state.authproblem = TRUE;
++        return CURLE_OK;
++      }
++      else if(result)
+         return result;
+     }
+ 
+-- 
+2.20.1
+

curl.spec

@@ -1,10 +1,13 @@
 Summary: A utility for getting files from remote servers (FTP, HTTP, and others)
 Name: curl
 Version: 7.64.1
-Release: 1%{?dist}
+Release: 2%{?dist}
 License: MIT
 Source: https://curl.haxx.se/download/%{name}-%{version}.tar.xz
 
+# do not treat failure of gss_init_sec_context() with --negotiate as fatal
+Patch1:   0001-curl-7.64.1-negotiate-without-ticket.patch
+
 # patch making libcurl multilib ready
 Patch101: 0101-curl-7.32.0-multilib.patch
 
@@ -171,6 +174,7 @@ be installed.
 %setup -q
 
 # upstream patches
+%patch1 -p1
 
 # Fedora patches
 %patch101 -p1
@@ -346,6 +350,9 @@ rm -f ${RPM_BUILD_ROOT}%{_libdir}/libcurl.la
 %{_libdir}/libcurl.so.4.[0-9].[0-9].minimal
 
 %changelog
+* Thu May 09 2019 Kamil Dudka <kdudka@redhat.com> - 7.64.1-2
+- do not treat failure of gss_init_sec_context() with --negotiate as fatal
+
 * Wed Mar 27 2019 Kamil Dudka <kdudka@redhat.com> - 7.64.1-1
 - new upstream release