Blame SOURCES/0014-failover-check-dns_domain-if-primary-servers-lookup-.patch

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From 0926cec5b98218131ac822e1684f9bce7aa0072c Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Pavel=20B=C5=99ezina?= <pbrezina@redhat.com>
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Date: Thu, 5 Dec 2013 13:19:16 +0100
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Subject: [PATCH 14/15] failover: check dns_domain if primary servers lookup
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 failed
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If primary servers lookup failed, dns_domain is not set.
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Resolves:
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https://fedorahosted.org/sssd/ticket/2173
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---
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 src/providers/fail_over_srv.c | 10 +++++++---
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 1 file changed, 7 insertions(+), 3 deletions(-)
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diff --git a/src/providers/fail_over_srv.c b/src/providers/fail_over_srv.c
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index 543516ef19e288556e39e61b400a628c94e2817b..c27416899e30b3cf8b3c0496adb08089f4b2c11d 100644
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--- a/src/providers/fail_over_srv.c
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+++ b/src/providers/fail_over_srv.c
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@@ -302,13 +302,17 @@ static void fo_discover_servers_primary_done(struct tevent_req *subreq)
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     }
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     if (state->backup_domain == NULL) {
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+        /* if there is no backup domain, we are done */
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         DEBUG(SSSDBG_TRACE_FUNC, ("No backup domain specified\n"));
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         goto done;
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     }
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-    if (strcasecmp(state->dns_domain, state->backup_domain) == 0) {
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-        /* primary domain was unreachable, we will use servers from backup
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-         * domain as primary */
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+    if (state->dns_domain != NULL
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+            && strcasecmp(state->dns_domain, state->backup_domain) == 0) {
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+        /* If there was no error and dns_domain is the same as backup domain,
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+         * it means that we were unable to resolve SRV in primary domain, but
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+         * SRV from backup domain was resolved and those servers are considered
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+         * to be primary. We are done. */
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         state->backup_servers = NULL;
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         state->num_backup_servers = 0;
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-- 
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1.8.4.2
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