From 1e2b2b11d52118009eba3919ceaa3c603ebddda5 Mon Sep 17 00:00:00 2001
From: "Wladimir J. van der Laan" <laanwj@gmail.com>
Date: Wed, 29 Nov 2017 11:58:24 +0100
Subject: [PATCH] Merge #11747: Fix: Open files read only if requested

e1a8ec5 Fix: Open files read only if requested (Andras Elso)

Tree-SHA512: 047951bf3fa1272764596d2efed0a541105a6d3057789ba4218cd1bbce8a802cab0feac0ed3d28f6eab6b2e54e294d46f729dd0162d6d209e319d716c0567352
---
 src/validation.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/validation.cpp b/src/validation.cpp
index 3b77081a3d..68be7c6c01 100644
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -3822,7 +3822,7 @@ static FILE* OpenDiskFile(const CDiskBlockPos &pos, const char *prefix, bool fRe
         return nullptr;
     fs::path path = GetBlockPosFilename(pos, prefix);
     fs::create_directories(path.parent_path());
-    FILE* file = fsbridge::fopen(path, "rb+");
+    FILE* file = fsbridge::fopen(path, fReadOnly ? "rb": "rb+");
     if (!file && !fReadOnly)
         file = fsbridge::fopen(path, "wb+");
     if (!file) {