[refactor] reorganize platform and wire sources

apps/desktop/src/platform/macos/system_info.cpp

@@ -0,0 +1,55 @@
+#include "platform.h"
+
+#include <ifaddrs.h>
+#include <net/if_dl.h>
+#include <net/if_types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#include <cstdio>
+#include <cstring>
+
+#include "rd_log.h"
+
+namespace crossdesk {
+
+std::string GetMac() {
+  struct ifaddrs* addresses = nullptr;
+  if (getifaddrs(&addresses) != 0) return {};
+
+  std::string result;
+  for (struct ifaddrs* cursor = addresses; cursor; cursor = cursor->ifa_next) {
+    if (!cursor->ifa_addr || cursor->ifa_addr->sa_family != AF_LINK ||
+        std::strcmp(cursor->ifa_name, "en0") != 0) {
+      continue;
+    }
+    const auto* link =
+        reinterpret_cast<const struct sockaddr_dl*>(cursor->ifa_addr);
+    if (link->sdl_type != IFT_ETHER) continue;
+    const auto* bytes = reinterpret_cast<const unsigned char*>(
+        &link->sdl_data[link->sdl_nlen]);
+    char address[16] = {};
+    int length = 0;
+    for (int index = 0; index < link->sdl_alen; ++index) {
+      length += std::snprintf(address + length, sizeof(address) - length,
+                              "%.2X", bytes[index]);
+    }
+    result = address;
+    break;
+  }
+  freeifaddrs(addresses);
+  return result;
+}
+
+std::string GetHostName() {
+  char hostname[256] = {};
+  if (gethostname(hostname, sizeof(hostname)) == -1) {
+    LOG_ERROR("gethostname failed");
+    return {};
+  }
+  return hostname;
+}
+
+bool IsWaylandSession() { return false; }
+
+}  // namespace crossdesk