1 files changed, 83 insertions, 0 deletions
diff --git a/ctr-std/src/sys/cloudabi/stdio.rs b/ctr-std/src/sys/cloudabi/stdio.rs
new file mode 100644
index 0000000..1d7344f
--- /dev/null
+++ b/ctr-std/src/sys/cloudabi/stdio.rs
@@ -0,0 +1,83 @@
+// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use io;
+use sys::cloudabi::abi;
+
+pub struct Stdin(());
+pub struct Stdout(());
+pub struct Stderr(());
+
+impl Stdin {
+    pub fn new() -> io::Result<Stdin> {
+        Ok(Stdin(()))
+    }
+
+    pub fn read(&self, _: &mut [u8]) -> io::Result<usize> {
+        Ok(0)
+    }
+}
+
+impl Stdout {
+    pub fn new() -> io::Result<Stdout> {
+        Ok(Stdout(()))
+    }
+
+    pub fn write(&self, _: &[u8]) -> io::Result<usize> {
+        Err(io::Error::new(
+            io::ErrorKind::BrokenPipe,
+            "Stdout is not connected to any output in this environment",
+        ))
+    }
+
+    pub fn flush(&self) -> io::Result<()> {
+        Ok(())
+    }
+}
+
+impl Stderr {
+    pub fn new() -> io::Result<Stderr> {
+        Ok(Stderr(()))
+    }
+
+    pub fn write(&self, _: &[u8]) -> io::Result<usize> {
+        Err(io::Error::new(
+            io::ErrorKind::BrokenPipe,
+            "Stderr is not connected to any output in this environment",
+        ))
+    }
+
+    pub fn flush(&self) -> io::Result<()> {
+        Ok(())
+    }
+}
+
+// FIXME: right now this raw stderr handle is used in a few places because
+//        std::io::stderr_raw isn't exposed, but once that's exposed this impl
+//        should go away
+impl io::Write for Stderr {
+    fn write(&mut self, data: &[u8]) -> io::Result<usize> {
+        Stderr::write(self, data)
+    }
+
+    fn flush(&mut self) -> io::Result<()> {
+        Stderr::flush(self)
+    }
+}
+
+pub fn is_ebadf(err: &io::Error) -> bool {
+    err.raw_os_error() == Some(abi::errno::BADF as i32)
+}
+
+pub const STDIN_BUF_SIZE: usize = ::sys_common::io::DEFAULT_BUF_SIZE;
+
+pub fn stderr_prints_nothing() -> bool {
+    false
+}