From 4a9c9aa6dcfa09ca9ff24b7d22a37f2fdba4ee3f Mon Sep 17 00:00:00 2001
From: Jakub Hrozek <jhrozek@redhat.com>
Date: Tue, 16 Oct 2018 10:42:43 +0200
Subject: [PATCH 57/57] UTIL: Suppress Coverity warning

We recently added this code:
         if (domain_name != NULL
                &&  is_files_provider(find_domain_by_name(dom,
                                                          domain_name,
                                                          false)))

find_domain_by_name returns NULL if the domain_name can't be found. This
of course makes mostly sense for trusted domains that can appear and
disappear. And is_files_provider() didn't handle the situation where the
domain pointer was NULL and would directly dereference it.

This commit just adds a NULL check for the domain pointer so that
is_files_provider() returns 'false' if the domain pointer was NULL.

Another alternative might be to check the return value of
find_domain_by_name(), but I don't think it's worth the trouble.

Reviewed-by: Sumit Bose <sbose@redhat.com>
---
 src/util/domain_info_utils.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/util/domain_info_utils.c b/src/util/domain_info_utils.c
index 8bef6c9af382ad55e14368b76dd4af7a53ea809b..ffb8cdf102c3ef92b4e8059d846f6b15b835ce69 100644
--- a/src/util/domain_info_utils.c
+++ b/src/util/domain_info_utils.c
@@ -931,6 +931,7 @@ bool sss_domain_info_get_output_fqnames(struct sss_domain_info *domain)
 
 bool is_files_provider(struct sss_domain_info *domain)
 {
-    return domain->provider != NULL &&
+    return domain != NULL &&
+           domain->provider != NULL &&
            strcasecmp(domain->provider, "files") == 0;
 }
-- 
2.14.4