From f73eccfc8e589e6cc670c488b78715ee40b6985d Mon Sep 17 00:00:00 2001
From: William Ahern <william+macosx@25thandclement.com>
Date: Fri, 24 Jul 2015 20:14:06 -0700
Subject: Don't recreate an exdata state singleton object when one already
 exists, otherwise we wrongly invalidate any data already installed. Because
 ex_newstate is invoked from every submodule, this can easily happen if code
 loads one submodule, attaches some data to a new OpenSSL object, then loads
 some other submodule for the first time.

---
 src/openssl.c | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'src')

diff --git a/src/openssl.c b/src/openssl.c
index 7b2ce89..8977234 100644
--- a/src/openssl.c
+++ b/src/openssl.c
@@ -1185,6 +1185,15 @@ static void ex_newstate(lua_State *L) {
 	struct ex_state *state;
 	struct lua_State *thr;
 
+	lua_pushlightuserdata(L, (void *)&ex__gc);
+	lua_gettable(L, LUA_REGISTRYINDEX);
+
+	if (!lua_isnil(L, -1)) {
+		lua_pop(L, 1);
+
+		return;
+	}
+
 	state = prepudata(L, sizeof *state, NULL, &ex__gc);
 	LIST_INIT(&state->data);
 
-- 
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