From a63e737bd12e466937223c848387d0b704f02e31 Mon Sep 17 00:00:00 2001
From: William Ahern <william@25thandclement.com>
Date: Fri, 24 Jun 2016 19:00:25 -0700
Subject: refactor and add ashb's regression test for #53

---
 src/GNUmakefile              |  1 +
 src/openssl.auxlib.lua       | 21 +++++++++++++++++++++
 src/openssl.x509.altname.lua |  3 ++-
 src/openssl.x509.name.lua    |  3 ++-
 4 files changed, 26 insertions(+), 2 deletions(-)
 create mode 100644 src/openssl.auxlib.lua

diff --git a/src/GNUmakefile b/src/GNUmakefile
index 3aff30a..f0eefde 100644
--- a/src/GNUmakefile
+++ b/src/GNUmakefile
@@ -88,6 +88,7 @@ LUAC$(1)_$(d) = $$(or $$(call LUAPATH_$(d), $(1), luac), true)
 MODS$(1)_$(d) = \
 	$$(DESTDIR)$(2)/_openssl.so \
 	$$(DESTDIR)$(3)/openssl.lua \
+	$$(DESTDIR)$(3)/openssl/auxlib.lua \
 	$$(DESTDIR)$(3)/openssl/bignum.lua \
 	$$(DESTDIR)$(3)/openssl/pkey.lua \
 	$$(DESTDIR)$(3)/openssl/pubkey.lua \
diff --git a/src/openssl.auxlib.lua b/src/openssl.auxlib.lua
new file mode 100644
index 0000000..4f00c25
--- /dev/null
+++ b/src/openssl.auxlib.lua
@@ -0,0 +1,21 @@
+local auxlib = {}
+
+if _VERSION == "Lua 5.1" then
+	local _pairs = pairs
+
+	function auxlib.pairs(t)
+		if type(t) == "userdata" then
+			local mt = getmetatable(t)
+
+			if mt and mt.__pairs then
+				return mt.__pairs(t)
+			else
+				return _pairs(t)
+			end
+		end
+	end
+else
+	auxlib.pairs = pairs
+end
+
+return auxlib
diff --git a/src/openssl.x509.altname.lua b/src/openssl.x509.altname.lua
index 66f16e7..e8222a0 100644
--- a/src/openssl.x509.altname.lua
+++ b/src/openssl.x509.altname.lua
@@ -1,9 +1,10 @@
 local altname = require"_openssl.x509.altname"
+local auxlib = require"openssl.auxlib"
 
 altname.interpose("__tostring", function (self)
 	local t = { }
 
-	for k, v in pairs(self) do
+	for k, v in auxlib.pairs(self) do
 		t[#t + 1] = k .. ":" .. v
 	end
 
diff --git a/src/openssl.x509.name.lua b/src/openssl.x509.name.lua
index a531502..f33339a 100644
--- a/src/openssl.x509.name.lua
+++ b/src/openssl.x509.name.lua
@@ -1,9 +1,10 @@
 local name = require"_openssl.x509.name"
+local auxlib = require"openssl.auxlib"
 
 name.interpose("__tostring", function (self)
 	local t = { }
 
-	for k, v in pairs(self) do
+	for k, v in auxlib.pairs(self) do
 		t[#t + 1] = k .. "=" .. v
 	end
 
-- 
cgit v1.2.3-59-g8ed1b