(ws) add subcommands: cobra subscribe, and cobra subscribe to statsd bridge

ws/ixcrypto/IXHMac.cpp

@@ -6,7 +6,11 @@
 #include "IXHMac.h"
 #include "IXBase64.h"
 
-#include <openssl/hmac.h>
+#ifdef __APPLE__
+# include <CommonCrypto/CommonHMAC.h>
+#else
+# include <openssl/hmac.h>
+#endif
 
 namespace ix
 {
@@ -15,10 +19,17 @@ namespace ix
         constexpr size_t hashSize = 16;
         unsigned char hash[hashSize];
 
+#ifdef __APPLE__
+        CCHmac(kCCHmacAlgMD5,
+               key.c_str(), key.size(),
+               data.c_str(), data.size(),
+               &hash);
+#else
         HMAC(EVP_md5(),
              key.c_str(), (int) key.size(),
              (unsigned char *) data.c_str(), (int) data.size(),
              (unsigned char *) hash, nullptr);
+#endif
 
         std::string hashString(reinterpret_cast<char*>(hash), hashSize);