From 853c48ba6468ce1a516621a2fa6d1fc51e4f7410 Mon Sep 17 00:00:00 2001

Message-Id: <853c48ba6468ce1a516621a2fa6d1fc51e4f7410.1589277227.git.pmatilai@redhat.com>

From: Panu Matilainen <pmatilai@redhat.com>

Date: Thu, 2 Apr 2020 09:14:36 +0300

Subject: [PATCH] Fix regression causing segfault on database autodetection

If configuration points to non-existent backend, tryBackend() will

segfault on the first call. Duh. Regression introduced in commit

3eb0eed3806b41efdf86f0433d0b5d7d6c953561.

---

 lib/backend/dbi.c | 2 +-

 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/backend/dbi.c b/lib/backend/dbi.c

index b51fc7ba3..94823b14c 100644

--- a/lib/backend/dbi.c

+++ b/lib/backend/dbi.c

@@ -52,7 +52,7 @@ dbiIndex dbiNew(rpmdb rdb, rpmDbiTagVal rpmtag)

 static int tryBackend(const char *dbhome, const struct rpmdbOps_s *be)

 {

     int rc = 0;

-    if (be->path) {

+    if (be && be->path) {

 	char *path = rstrscat(NULL, dbhome, "/", be->path, NULL);

 	rc = (access(path, F_OK) == 0);

 	free(path);

-- 

2.26.2