add be64toh

Author: ikeyasu

ssl/os_port.h

@@ -82,6 +82,19 @@ extern "C" {
 #define hmac_sha1 ax_hmac_sha1
 #define hmac_md5 ax_hmac_md5
 
+#ifndef be64toh
+# define __bswap_constant_64(x) \
+     ((((x) & 0xff00000000000000ull) >> 56)                                   \
+      | (((x) & 0x00ff000000000000ull) >> 40)                                 \
+      | (((x) & 0x0000ff0000000000ull) >> 24)                                 \
+      | (((x) & 0x000000ff00000000ull) >> 8)                                  \
+      | (((x) & 0x00000000ff000000ull) << 8)                                  \
+      | (((x) & 0x0000000000ff0000ull) << 24)                                 \
+      | (((x) & 0x000000000000ff00ull) << 40)                                 \
+      | (((x) & 0x00000000000000ffull) << 56))
+#define be64toh(x) __bswap_constant_64(x)
+#endif
+
 void ax_wdt_feed();
 
 #elif defined(WIN32)