From 8ef997c636c8dee8f408909b526405f417ececb0 Mon Sep 17 00:00:00 2001
From: Jack Hadrill <jack@hadrill.co.uk>
Date: Mon, 31 Jan 2022 22:08:55 +0000
Subject: [PATCH] Add support for MacOS

---
 Romulus-M/encrypt_wrapper.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Romulus-M/encrypt_wrapper.c b/Romulus-M/encrypt_wrapper.c
index faaac86..7b4f1da 100644
--- a/Romulus-M/encrypt_wrapper.c
+++ b/Romulus-M/encrypt_wrapper.c
@@ -5,6 +5,11 @@
 #ifdef _MSC_VER
 #define __bswap_16 _byteswap_ushort
 #define __bswap_32 _byteswap_ulong
+#elif defined(__APPLE__)
+#include <libkern/OSByteOrder.h>
+#define __bswap_16 OSSwapInt16
+#define __bswap_32 OSSwapInt32
+#define __bswap_64 OSSwapInt64
 #else
 #include <byteswap.h>
 #endif
@@ -161,4 +166,4 @@ void fill_random(unsigned char* buffer, int length){
         secRandom = rand(&rCtx);
         memcpy(&buffer[i], &secRandom, MIN(sizeof(UINT32), length-i));
     }
-}
\ No newline at end of file
+}