From bd2347fd5733565a4e6101cbd4bf4cd0af667088 Mon Sep 17 00:00:00 2001
From: Robert Tari <robert@tari.in>
Date: Wed, 11 Aug 2021 23:46:45 +0200
Subject: Check for ADBD socket before creating UsbManager

fixes https://github.com/AyatanaIndicators/ayatana-indicator-display/issues/13
---
 src/main.cpp | 32 +++++++++++++++++++++++++-------
 1 file changed, 25 insertions(+), 7 deletions(-)

diff --git a/src/main.cpp b/src/main.cpp
index 004b21d..f145504 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -28,6 +28,8 @@
 #include <gio/gio.h>
 
 #include <locale.h>
+#include <sys/stat.h>
+#include <errno.h>
 
 extern "C"
 {
@@ -63,15 +65,31 @@ main(int /*argc*/, char** /*argv*/)
       exporters.push_back(exporter);
     }
 
+    gboolean bHasSocket = FALSE;
+
     if (ayatana_common_utils_is_lomiri())
     {
-        // We need the ADBD handler running,
-        // even though it doesn't have an indicator component yet
-        static constexpr char const * ADB_SOCKET_PATH {"/dev/socket/adbd"};
-        static constexpr char const * PUBLIC_KEYS_FILENAME {"/data/misc/adb/adb_keys"};
-        auto usb_monitor = std::make_shared<GUDevUsbMonitor>();
-        auto greeter = std::make_shared<Greeter>();
-        UsbManager usb_manager {ADB_SOCKET_PATH, PUBLIC_KEYS_FILENAME, usb_monitor, greeter};
+        struct stat cStat;
+
+        if (stat("/dev/socket/adbd", &cStat) == 0)
+        {
+            if (S_ISSOCK(cStat.st_mode))
+            {
+                // We need the ADBD handler running,
+                // even though it doesn't have an indicator component yet
+                static constexpr char const * ADB_SOCKET_PATH {"/dev/socket/adbd"};
+                static constexpr char const * PUBLIC_KEYS_FILENAME {"/data/misc/adb/adb_keys"};
+                auto usb_monitor = std::make_shared<GUDevUsbMonitor>();
+                auto greeter = std::make_shared<Greeter>();
+                UsbManager usb_manager {ADB_SOCKET_PATH, PUBLIC_KEYS_FILENAME, usb_monitor, greeter};
+                bHasSocket = TRUE;
+            }
+        }
+    }
+
+    if (bHasSocket == FALSE)
+    {
+        g_message("No /dev/socket/adbd socket found, skipping UsbManager");
     }
 
     // let's go!
-- 
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