From 8c3347d43170dfddc88255e31e28c4d7e506d2fc Mon Sep 17 00:00:00 2001
From: baizg1107 <preloyalwhite@163.com>
Date: Tue, 9 Feb 2021 19:41:21 +0800
Subject: [PATCH] work around btrfs sqlite

---
 nss/lib/softoken/sdb.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/nss/lib/softoken/sdb.c b/nss/lib/softoken/sdb.c
index de0fd1f..b2fc0d1 100644
--- a/nss/lib/softoken/sdb.c
+++ b/nss/lib/softoken/sdb.c
@@ -690,6 +690,11 @@ sdb_openDB(const char *name, sqlite3 **sqlDB, int flags)
         openFlags = SQLITE_OPEN_READONLY;
     } else {
         openFlags = SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE;
+        /* btrfs and sqlite seem to incorrectly open readwrite.
+        * when the file is readonly explicitly reject that issue here */
+        if ((_NSSUTIL_Access(name, PR_ACCESS_EXISTS) == PR_SUCCESS)  && (_NSSUTIL_Access(name, PR_ACCESS_WRITE_OK) != PR_SUCCESS)) {
+            return SQLITE_READONLY;
+        } 
     }
 
     /* Requires SQLite 3.5.0 or newer. */
-- 
2.23.0