From fc9747eb4b7f75e59a28957bc50f7a78256b3d66 Mon Sep 17 00:00:00 2001 From: sfan5 Date: Tue, 7 Nov 2017 11:47:28 +0100 Subject: [PATCH] Make use of safe file writing in auth handler (fixes #6576) --- builtin/game/auth.lua | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/builtin/game/auth.lua b/builtin/game/auth.lua index bf5bd19a8..3a478111c 100644 --- a/builtin/game/auth.lua +++ b/builtin/game/auth.lua @@ -42,16 +42,15 @@ local function save_auth_file() assert(type(stuff.privileges) == "table") assert(stuff.last_login == nil or type(stuff.last_login) == "number") end - local file, errmsg = io.open(core.auth_file_path, 'w+b') - if not file then - error(core.auth_file_path.." could not be opened for writing: "..errmsg) - end + local content = "" for name, stuff in pairs(core.auth_table) do local priv_string = core.privs_to_string(stuff.privileges) local parts = {name, stuff.password, priv_string, stuff.last_login or ""} - file:write(table.concat(parts, ":").."\n") + content = content .. table.concat(parts, ":") .. "\n" + end + if not core.safe_file_write(core.auth_file_path, content) then + error(core.auth_file_path.." could not be written to") end - io.close(file) end read_auth_file()