Fixed crash where too many symlinks are hit, fixes #853

src/libs/services/scanner/impl/steps/ScanStepScanFiles.cpp

@@ -67,7 +67,16 @@ namespace lms::scanner
                 {
                     continueExploring = cb(ec, path, nullptr);
                 }
-                else if (entry.is_regular_file())
+                else
+                {
+                    const bool isFile{ entry.is_regular_file(ec) };
+                    const bool isDir{ !ec && !isFile && entry.is_directory(ec) };
+
+                    if (ec)
+                    {
+                        continueExploring = cb(ec, path, nullptr);
+                    }
+                    else if (isFile)
                     {
                         if (shouldIgnore(path, IgnoreRules::IsDirectory{ false }))
                         {
@@ -77,7 +86,7 @@ namespace lms::scanner
                         }
                         continueExploring = cb(ec, path, &entry);
                     }
-                else if (entry.is_directory())
+                    else if (isDir)
                     {
                         if (shouldIgnore(path, IgnoreRules::IsDirectory{ true }))
                         {
@@ -87,6 +96,7 @@ namespace lms::scanner
                         }
                         continueExploring = exploreFilesRecursive(path, cb, shouldIgnore);
                     }
+                }
 
                 if (!continueExploring)
                     return false;