From fff07bd79ad832616b992d6844b857bbbce1ff8b Mon Sep 17 00:00:00 2001
From: Paul Sokolovsky <pfalcon@users.sourceforge.net>
Date: Sun, 11 Oct 2015 17:36:28 +0300
Subject: [PATCH] os: Implement dup().

---
 os/os/__init__.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/os/os/__init__.py b/os/os/__init__.py
index 2080f953..2d52cc27 100644
--- a/os/os/__init__.py
+++ b/os/os/__init__.py
@@ -39,6 +39,7 @@ open_ = libc.func("i", "open", "sii")
 read_ = libc.func("i", "read", "ipi")
 write_ = libc.func("i", "write", "iPi")
 close_ = libc.func("i", "close", "i")
+dup_ = libc.func("i", "dup", "i")
 access_ = libc.func("i", "access", "si")
 fork_ = libc.func("i", "fork", "")
 pipe_ = libc.func("i", "pipe", "p")
@@ -184,6 +185,11 @@ def close(fd):
     check_error(r)
     return r
 
+def dup(fd):
+    r = dup_(fd)
+    check_error(r)
+    return r
+
 def access(path, mode):
     return access_(path, mode) == 0