Merge pull request #47 from 2youyou2/develop

export xxtea functions to DLL

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
+

sources/xxtea/xxtea.h

@@ -21,6 +21,20 @@
 
 #include <stddef.h> /* for size_t & NULL declarations */
 
+#if defined(_WIN32) && defined(_WINDOWS)
+#if defined(_USRDLL)
+#define XXTEA_DLL     __declspec(dllexport)
+#else         /* use a DLL library */
+#define XXTEA_DLL     __declspec(dllimport)
+#endif
+#else
+#define XXTEA_DLL
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #if defined(_MSC_VER)
 
 typedef unsigned __int32 xxtea_long;
@@ -41,7 +55,12 @@ 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);
+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
+
+
+#ifdef __cplusplus
+}
+#endif