Fix QUERY-FILE-SYSTEM for Windows UNC and device file names

[sbcl.git] / src / code / filesys.lisp

diff --git a/src/code/filesys.lisp b/src/code/filesys.lisp
index c8a3999..8817dcf 100644 (file)
--- a/src/code/filesys.lisp
+++ b/src/code/filesys.lisp
@@ -296,6 +296,22 @@
             (sb!unix:unix-stat filename)
           (declare (ignore ino nlink gid rdev size atime
                            #!+win32 uid))
+          #!+win32
+          ;; On win32, stat regards UNC pathnames and device names as
+          ;; nonexisting, so we check once more with the native API.
+          (unless existsp
+            (setf existsp
+                  (let ((handle (sb!win32:create-file
+                                 filename 0 0 nil
+                                 sb!win32:file-open-existing
+                                 0 0)))
+                    (when (/= -1 handle)
+                      (setf mode
+                            (or mode
+                                (if (logbitp 4
+                                             (sb!win32:get-file-attributes filename))
+                                    sb!unix:s-ifdir 0)))
+                      (progn (sb!win32:close-handle handle) t)))))
           (if existsp
               (case query-for
                 (:existence (nth-value