GEEKING

App/util/Darwin/MachineIdUploader_OSX.cpp

@@ -0,0 +1,48 @@
+#include "Util/MachineIdUploader.h"
+
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <net/if.h>
+#include <net/if_dl.h>
+#include <net/if_types.h>
+#include <ifaddrs.h>
+
+using namespace RBX;
+
+// This is only needed to satisfy mac compiler:
+const int MachineIdUploader::MacAddress::kBytesInMacAddress;
+
+bool nameLooksLikeEthernet(const sockaddr_dl* dlAddress) {
+    return dlAddress->sdl_nlen >= 2 &&
+        dlAddress->sdl_data[0] == 'e' &&
+        dlAddress->sdl_data[1] == 'n';
+}
+
+bool MachineIdUploader::fillMachineId(MachineId *out) {
+    ifaddrs* addresses;
+    
+    if (getifaddrs(&addresses) == 0) {
+        for (ifaddrs* current = addresses; current != NULL;
+                current = current->ifa_next) {
+            sockaddr_dl* dlAddress = (sockaddr_dl*)(current->ifa_addr);
+            if (current->ifa_addr->sa_family == AF_LINK &&
+                    nameLooksLikeEthernet(dlAddress) &&
+                    dlAddress->sdl_type == IFT_ETHER) {
+                out->macAddresses.resize(out->macAddresses.size() + 1);
+                size_t bytesToCopy = std::min(MacAddress::kBytesInMacAddress, (int)dlAddress->sdl_alen);
+                
+                // mac address starts after name data (nlen bytes).
+                char* source = dlAddress->sdl_data + dlAddress->sdl_nlen;
+                for (size_t i = 0; i < bytesToCopy; ++i) {
+                    out->macAddresses.back().address[i] = source[i];
+                }
+            }
+        }
+        
+        freeifaddrs(addresses);
+
+        return true;
+    }
+    
+    return false;
+}