chore: import upstream snapshot with attribution

2026-07-13 13:05:33 +08:00
commit e25d789156
8165 changed files with 2004905 additions and 0 deletions
@@ -0,0 +1,14 @@
+import Darwin
+
+public enum UnixSocketPathSafety {
+    public static func isSocketMode(_ mode: mode_t) -> Bool {
+        (mode & mode_t(S_IFMT)) == mode_t(S_IFSOCK)
+    }
+
+    public static func shouldRejectExistingPathAfterBindFailure(
+        bindErrno: Int32,
+        existingMode: mode_t?
+    ) -> Bool {
+        bindErrno == EADDRINUSE && existingMode.map { !isSocketMode($0) } == true
+    }
+}