From 808c57d01be3d52a6680f1c2da2900280ce9df60 Mon Sep 17 00:00:00 2001
From: 2youyou2 <501251991@qq.com>
Date: Thu, 28 Sep 2017 11:02:01 +0800
Subject: [PATCH 1/3] export xxtea functions to DLL

---
 sources/xxtea/xxtea.cpp |  9 +++++++++
 sources/xxtea/xxtea.h   | 14 ++++++++++++--
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/sources/xxtea/xxtea.cpp b/sources/xxtea/xxtea.cpp
index 935eaeaf..876a8fa9 100644
--- a/sources/xxtea/xxtea.cpp
+++ b/sources/xxtea/xxtea.cpp
@@ -20,6 +20,10 @@
 #include <memory.h>
 #include <stdlib.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 static void xxtea_long_encrypt(xxtea_long *v, xxtea_long len, xxtea_long *k)
 {
     xxtea_long n = len - 1;
@@ -174,3 +178,8 @@ unsigned char *xxtea_decrypt(unsigned char *data, xxtea_long data_len, unsigned
 }
 
 /* }}} */
+
+#ifdef __cplusplus
+}
+#endif
+
diff --git a/sources/xxtea/xxtea.h b/sources/xxtea/xxtea.h
index ecdb32ce..a864fc26 100644
--- a/sources/xxtea/xxtea.h
+++ b/sources/xxtea/xxtea.h
@@ -20,6 +20,11 @@
 #define XXTEA_H
 
 #include <stddef.h> /* for size_t & NULL declarations */
+#include "platform/CCPlatformMacros.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 #if defined(_MSC_VER)
 
@@ -41,7 +46,12 @@ typedef uint32_t xxtea_long;
 #define XXTEA_MX (z >> 5 ^ y << 2) + (y >> 3 ^ z << 4) ^ (sum ^ y) + (k[p & 3 ^ e] ^ z)
 #define XXTEA_DELTA 0x9e3779b9
 
-unsigned char *xxtea_encrypt(unsigned char *data, xxtea_long data_len, unsigned char *key, xxtea_long key_len, xxtea_long *ret_length);
-unsigned char *xxtea_decrypt(unsigned char *data, xxtea_long data_len, unsigned char *key, xxtea_long key_len, xxtea_long *ret_length);
+CC_DLL unsigned char *xxtea_encrypt(unsigned char *data, xxtea_long data_len, unsigned char *key, xxtea_long key_len, xxtea_long *ret_length);
+CC_DLL unsigned char *xxtea_decrypt(unsigned char *data, xxtea_long data_len, unsigned char *key, xxtea_long key_len, xxtea_long *ret_length);
 
 #endif
+
+
+#ifdef __cplusplus
+}
+#endif

From 9638089278fc5f8b6d413ef3165d2dd13836d1a6 Mon Sep 17 00:00:00 2001
From: 2youyou2 <501251991@qq.com>
Date: Thu, 28 Sep 2017 17:24:06 +0800
Subject: [PATCH 2/3] define XXTEA_DLL macro for xxtea

---
 sources/xxtea/xxtea.h | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/sources/xxtea/xxtea.h b/sources/xxtea/xxtea.h
index a864fc26..1f4063a0 100644
--- a/sources/xxtea/xxtea.h
+++ b/sources/xxtea/xxtea.h
@@ -20,7 +20,20 @@
 #define XXTEA_H
 
 #include <stddef.h> /* for size_t & NULL declarations */
-#include "platform/CCPlatformMacros.h"
+
+#if CC_TARGET_PLATFORM == CC_PLATFORM_WIN32
+#if defined(CC_STATIC)
+#define XXTEA_DLL
+#else
+#if defined(_USRDLL)
+#define XXTEA_DLL     __declspec(dllexport)
+#else         /* use a DLL library */
+#define XXTEA_DLL     __declspec(dllimport)
+#endif
+#endif
+#else
+#define XXTEA_DLL
+#endif
 
 #ifdef __cplusplus
 extern "C" {
@@ -46,8 +59,8 @@ typedef uint32_t xxtea_long;
 #define XXTEA_MX (z >> 5 ^ y << 2) + (y >> 3 ^ z << 4) ^ (sum ^ y) + (k[p & 3 ^ e] ^ z)
 #define XXTEA_DELTA 0x9e3779b9
 
-CC_DLL unsigned char *xxtea_encrypt(unsigned char *data, xxtea_long data_len, unsigned char *key, xxtea_long key_len, xxtea_long *ret_length);
-CC_DLL unsigned char *xxtea_decrypt(unsigned char *data, xxtea_long data_len, unsigned char *key, xxtea_long key_len, xxtea_long *ret_length);
+XXTEA_DLL unsigned char *xxtea_encrypt(unsigned char *data, xxtea_long data_len, unsigned char *key, xxtea_long key_len, xxtea_long *ret_length);
+XXTEA_DLL unsigned char *xxtea_decrypt(unsigned char *data, xxtea_long data_len, unsigned char *key, xxtea_long key_len, xxtea_long *ret_length);
 
 #endif
 

From 45c237fbe498270939238f99e845c53345dc9263 Mon Sep 17 00:00:00 2001
From: 2youyou2 <501251991@qq.com>
Date: Thu, 28 Sep 2017 17:40:02 +0800
Subject: [PATCH 3/3] refine XXTEA_DLL macro

---
 sources/xxtea/xxtea.h | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/sources/xxtea/xxtea.h b/sources/xxtea/xxtea.h
index 1f4063a0..117d81ec 100644
--- a/sources/xxtea/xxtea.h
+++ b/sources/xxtea/xxtea.h
@@ -21,16 +21,12 @@
 
 #include <stddef.h> /* for size_t & NULL declarations */
 
-#if CC_TARGET_PLATFORM == CC_PLATFORM_WIN32
-#if defined(CC_STATIC)
-#define XXTEA_DLL
-#else
+#if defined(_WIN32) && defined(_WINDOWS)
 #if defined(_USRDLL)
 #define XXTEA_DLL     __declspec(dllexport)
 #else         /* use a DLL library */
 #define XXTEA_DLL     __declspec(dllimport)
 #endif
-#endif
 #else
 #define XXTEA_DLL
 #endif