From 89f6ad9900ca4bda11e3097f0d17866bfc454c58 Mon Sep 17 00:00:00 2001
From: Jeremy Soller <jackpot51@gmail.com>
Date: Tue, 27 Dec 2016 11:17:38 -0700
Subject: [PATCH] Add dup2 call

---
 src/call.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/call.rs b/src/call.rs
index ed8c844c2e..80c3529bb9 100644
--- a/src/call.rs
+++ b/src/call.rs
@@ -63,7 +63,7 @@ pub fn dup(fd: usize, buf: &[u8]) -> Result<usize> {
 
 /// Copy and transform a file descriptor
 pub fn dup2(fd: usize, newfd: usize, buf: &[u8]) -> Result<usize> {
-    unsafe { syscall4(SYS_DUP, fd, newfd, buf.as_ptr() as usize, buf.len()) }
+    unsafe { syscall4(SYS_DUP2, fd, newfd, buf.as_ptr() as usize, buf.len()) }
 }
 
 /// Replace the current process with a new executable