From 3bd5a1244a35974c8a0e21a9ac866cb5935f662e Mon Sep 17 00:00:00 2001
From: yaqiang chen <chenyaqiang@huawei.com>
Date: Wed, 15 Sep 2021 10:05:49 +0800
Subject: [PATCH] bugfix cannot open database file

---
 modules/pam_userdb/pam_userdb.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/modules/pam_userdb/pam_userdb.c b/modules/pam_userdb/pam_userdb.c
index dc2ca23..a9992a7 100644
--- a/modules/pam_userdb/pam_userdb.c
+++ b/modules/pam_userdb/pam_userdb.c
@@ -147,13 +147,24 @@ user_lookup (pam_handle_t *pamh, const char *database, const char *cryptmode,
 {
     DBM *dbm;
     datum key, data;
+    int retval;
 
     /* Open the DB file. */
     dbm = dbm_open(database, O_RDONLY, 0644);
     if (dbm == NULL) {
-	pam_syslog(pamh, LOG_ERR,
-		   "user_lookup: could not open database `%s': %m", database);
-	return -2;
+        retval = dbminit(database);
+        if (retval){
+            pam_syslog(pamh, LOG_ERR,
+                       "user_lookup: could not init database `%s': %m", database);
+            return -2;
+        } else {
+            dbm = dbm_open(database, O_RDONLY, 0644);
+            if (dbm == NULL) {
+                pam_syslog(pamh, LOG_ERR,
+                           "user_lookup: could not open database `%s': %m", database);
+                return -2;
+            }
+        }
     }
 
     /* dump out the database contents for debugging */
-- 
1.8.3.1