diff --git a/File/File.cpp b/File/File.cpp
index 7ce27f0..d1d3e49 100644
--- a/File/File.cpp
+++ b/File/File.cpp
@@ -71,11 +71,21 @@ void File::close()
 
 void File::adopt(File &f)
 {
+    if (&f == this) return;
+    
     close();
     _fd = f._fd;
     f._fd = -1;
 }
 
+void File::adopt(int fd)
+{
+    if (fd == _fd) return;
+    close();
+    _fd = fd;
+}
+
+
 void File::swap(File &f)
 {
     std::swap(_fd, f._fd);
diff --git a/File/File.h b/File/File.h
index 6278666..5ada61d 100644
--- a/File/File.h
+++ b/File/File.h
@@ -26,6 +26,8 @@ class File {
     void close();
     
     void adopt(File &f);
+    void adopt(int fd);
+    
     void swap(File &f);
         
     private: