Fix birthtime if not present (#10)

(DIS-1659)
fox-it · Nov 14, 2022 · 96a1f3f · 96a1f3f
1 parent abd3482
commit 96a1f3f
Showing 1 changed file with 9 additions and 5 deletions.
diff --git a/dissect/ffs/ffs.py b/dissect/ffs/ffs.py
@@ -186,31 +186,35 @@ def atime(self):
 
     @cached_property
     def atime_ns(self):
-        return (self.inode.di_atime * 1000000000) + self.inode.di_atimensec
+        return (self.inode.di_atime * 1_000_000_000) + self.inode.di_atimensec
 
     @cached_property
     def mtime(self):
         return ts.from_unix_ns(self.mtime_ns)
 
     @cached_property
     def mtime_ns(self):
-        return (self.inode.di_mtime * 1000000000) + self.inode.di_mtimensec
+        return (self.inode.di_mtime * 1_000_000_000) + self.inode.di_mtimensec
 
     @cached_property
     def ctime(self):
         return ts.from_unix_ns(self.ctime_ns)
 
     @cached_property
     def ctime_ns(self):
-        return (self.inode.di_ctime * 1000000000) + self.inode.di_ctimensec
+        return (self.inode.di_ctime * 1_000_000_000) + self.inode.di_ctimensec
 
     @cached_property
     def btime(self):
-        return ts.from_unix_ns(self.btime_ns)
+        if btime_ns := self.btime_ns:
+            return ts.from_unix_ns(btime_ns)
+        return None
 
     @cached_property
     def btime_ns(self):
-        return (self.inode.di_birthtime * 1000000000) + self.inode.di_birthnsec
+        if hasattr(self.inode, "di_birthtime"):
+            return (self.inode.di_birthtime * 1_000_000_000) + self.inode.di_birthnsec
+        return None
 
     @cached_property
     def link(self):