Stop reexporting `Errno` and its variants

cc #664 (unsure if this is everything needed)

22 files changed, 47 insertions, 24 deletions

diff --git a/src/sys/aio.rs b/src/sys/aio.rs
index 6166467c..fbae4443 100644
--- a/src/sys/aio.rs
+++ b/src/sys/aio.rs
@@ -1,4 +1,5 @@
-use {Error, Errno, Result};
+use {Error, Result};
+use errno::Errno;
 use std::os::unix::io::RawFd;
 use libc::{c_void, off_t, size_t};
 use libc;
diff --git a/src/sys/epoll.rs b/src/sys/epoll.rs
index 5d63e82f..43a543ab 100644
--- a/src/sys/epoll.rs
+++ b/src/sys/epoll.rs
@@ -1,4 +1,5 @@
-use {Errno, Result};
+use Result;
+use errno::Errno;
 use libc::{self, c_int};
 use std::os::unix::io::RawFd;
 use std::ptr;
diff --git a/src/sys/eventfd.rs b/src/sys/eventfd.rs
index 51091478..c5a54e46 100644
--- a/src/sys/eventfd.rs
+++ b/src/sys/eventfd.rs
@@ -1,6 +1,7 @@
 use libc;
 use std::os::unix::io::RawFd;
-use {Errno, Result};
+use Result;
+use errno::Errno;
 
 libc_bitflags! {
     pub struct EfdFlags: libc::c_int {
diff --git a/src/sys/ioctl/mod.rs b/src/sys/ioctl/mod.rs
index b29c8b42..4169920b 100644
--- a/src/sys/ioctl/mod.rs
+++ b/src/sys/ioctl/mod.rs
@@ -66,7 +66,8 @@
 //! ```
 //! # #[macro_use] extern crate nix;
 //! # use std::mem;
-//! # use nix::{Errno, libc, Result};
+//! # use nix::{libc, Result};
+//! # use nix::errno::Errno;
 //! # use nix::libc::c_int as c_int;
 //! # const SPI_IOC_MAGIC: u8 = b'k'; // Defined in linux/spi/spidev.h
 //! # const SPI_IOC_TYPE_MODE: u8 = 1;
@@ -176,7 +177,8 @@
 //! ```
 //! # #[macro_use] extern crate nix;
 //! # use std::mem;
-//! # use nix::{Errno, libc, Result};
+//! # use nix::{libc, Result};
+//! # use nix::errno::Errno;
 //! # use nix::libc::c_int as c_int;
 //! # const SPI_IOC_MAGIC: u8 = b'k';
 //! # const SPI_IOC_TYPE_MESSAGE: u8 = 0;
@@ -248,7 +250,7 @@ pub use self::platform::*;
 macro_rules! convert_ioctl_res {
     ($w:expr) => (
         {
-            $crate::Errno::result($w)
+            $crate::errno::Errno::result($w)
         }
     );
 }
diff --git a/src/sys/memfd.rs b/src/sys/memfd.rs
index 88c1dac9..9672429b 100644
--- a/src/sys/memfd.rs
+++ b/src/sys/memfd.rs
@@ -1,6 +1,7 @@
 use libc;
 use std::os::unix::io::RawFd;
-use {Errno, Result};
+use Result;
+use errno::Errno;
 use std::ffi::CStr;
 
 libc_bitflags!(
diff --git a/src/sys/mman.rs b/src/sys/mman.rs
index dc21899b..a32cd54a 100644
--- a/src/sys/mman.rs
+++ b/src/sys/mman.rs
@@ -1,4 +1,5 @@
-use {Errno, Error, Result, NixPath};
+use {Error, Result, NixPath};
+use errno::Errno;
 use fcntl::OFlag;
 use libc::{self, c_int, c_void, size_t, off_t};
 use sys::stat::Mode;
diff --git a/src/sys/ptrace.rs b/src/sys/ptrace.rs
index 43a78862..e2b153d8 100644
--- a/src/sys/ptrace.rs
+++ b/src/sys/ptrace.rs
@@ -1,7 +1,8 @@
 //! For detailed description of the ptrace requests, consult `man ptrace`.
 
 use std::{mem, ptr};
-use {Errno, Error, Result};
+use {Error, Result};
+use errno::Errno;
 use libc::{self, c_void, c_long, siginfo_t};
 use ::unistd::Pid;
 use sys::signal::Signal;
diff --git a/src/sys/quota.rs b/src/sys/quota.rs
index 4a8fdf5e..abe114f0 100644
--- a/src/sys/quota.rs
+++ b/src/sys/quota.rs
@@ -15,7 +15,8 @@
 use std::default::Default;
 use std::{mem, ptr};
 use libc::{self, c_int, c_char};
-use {Errno, Result, NixPath};
+use {Result, NixPath};
+use errno::Errno;
 
 struct QuotaCmd(QuotaSubCmd, QuotaType);
 
diff --git a/src/sys/reboot.rs b/src/sys/reboot.rs
index 5b340e32..bafa8fc1 100644
--- a/src/sys/reboot.rs
+++ b/src/sys/reboot.rs
@@ -1,6 +1,7 @@
 //! Reboot/shutdown or enable/disable Ctrl-Alt-Delete.
 
-use {Errno, Error, Result};
+use {Error, Result};
+use errno::Errno;
 use libc;
 use void::Void;
 use std::mem::drop;
diff --git a/src/sys/select.rs b/src/sys/select.rs
index 252fa6bc..9a429103 100644
--- a/src/sys/select.rs
+++ b/src/sys/select.rs
@@ -2,7 +2,8 @@ use std::mem;
 use std::os::unix::io::RawFd;
 use std::ptr::null_mut;
 use libc::{self, c_int};
-use {Errno, Result};
+use Result;
+use errno::Errno;
 use sys::time::TimeVal;
 
 pub use libc::FD_SETSIZE;
diff --git a/src/sys/sendfile.rs b/src/sys/sendfile.rs
index 2c39ea90..7f7a7751 100644
--- a/src/sys/sendfile.rs
+++ b/src/sys/sendfile.rs
@@ -3,7 +3,8 @@ use std::ptr;
 
 use libc::{self, off_t};
 
-use {Errno, Result};
+use Result;
+use errno::Errno;
 
 pub fn sendfile(out_fd: RawFd, in_fd: RawFd, offset: Option<&mut off_t>, count: usize) -> Result<usize> {
     let offset = offset.map(|offset| offset as *mut _).unwrap_or(ptr::null_mut());
diff --git a/src/sys/signal.rs b/src/sys/signal.rs
index 967c6416..f82e4502 100644
--- a/src/sys/signal.rs
+++ b/src/sys/signal.rs
@@ -2,7 +2,8 @@
 // See http://rust-lang.org/COPYRIGHT.
 
 use libc;
-use {Errno, Error, Result};
+use {Error, Result};
+use errno::Errno;
 use std::mem;
 #[cfg(any(target_os = "dragonfly", target_os = "freebsd"))]
 use std::os::unix::io::RawFd;
diff --git a/src/sys/signalfd.rs b/src/sys/signalfd.rs
index bbd38b23..7ea09ee3 100644
--- a/src/sys/signalfd.rs
+++ b/src/sys/signalfd.rs
@@ -17,7 +17,8 @@
 //! signal handlers.
 use libc;
 use unistd;
-use {Error, Errno, Result};
+use {Error, Result};
+use errno::Errno;
 pub use sys::signal::{self, SigSet};
 pub use libc::signalfd_siginfo as siginfo;
 
diff --git a/src/sys/socket/addr.rs b/src/sys/socket/addr.rs
index 29832b37..9917fdfd 100644
--- a/src/sys/socket/addr.rs
+++ b/src/sys/socket/addr.rs
@@ -1,5 +1,6 @@
 use super::sa_family_t;
-use {Errno, Error, Result, NixPath};
+use {Error, Result, NixPath};
+use errno::Errno;
 use libc;
 use std::{fmt, hash, mem, net, ptr, slice};
 use std::ffi::OsStr;
diff --git a/src/sys/socket/mod.rs b/src/sys/socket/mod.rs
index cdb8b4b3..c7d6d581 100644
--- a/src/sys/socket/mod.rs
+++ b/src/sys/socket/mod.rs
@@ -1,7 +1,8 @@
 //! Socket interface functions
 //!
 //! [Further reading](http://man7.org/linux/man-pages/man7/socket.7.html)
-use {Error, Errno, Result};
+use {Error, Result};
+use errno::Errno;
 use features;
 use libc::{self, c_void, c_int, socklen_t, size_t, pid_t, uid_t, gid_t};
 use std::{mem, ptr, slice};
diff --git a/src/sys/socket/sockopt.rs b/src/sys/socket/sockopt.rs
index 98a4eeac..4741ec66 100644
--- a/src/sys/socket/sockopt.rs
+++ b/src/sys/socket/sockopt.rs
@@ -1,5 +1,6 @@
 use super::{GetSockOpt, SetSockOpt};
-use {Errno, Result};
+use Result;
+use errno::Errno;
 use sys::time::TimeVal;
 use libc::{self, c_int, uint8_t, c_void, socklen_t};
 use std::mem;
diff --git a/src/sys/stat.rs b/src/sys/stat.rs
index 7a0b3970..9c0129f5 100644
--- a/src/sys/stat.rs
+++ b/src/sys/stat.rs
@@ -1,7 +1,8 @@
 pub use libc::dev_t;
 pub use libc::stat as FileStat;
 
-use {Errno, Result, NixPath};
+use {Result, NixPath};
+use errno::Errno;
 use fcntl::AtFlags;
 use libc::{self, mode_t};
 use std::mem;
diff --git a/src/sys/statfs.rs b/src/sys/statfs.rs
index afa61468..6d4fafe9 100644
--- a/src/sys/statfs.rs
+++ b/src/sys/statfs.rs
@@ -1,4 +1,5 @@
-use {Errno, Result, NixPath};
+use {Result, NixPath};
+use errno::Errno;
 use std::os::unix::io::AsRawFd;
 use libc;
 
diff --git a/src/sys/statvfs.rs b/src/sys/statvfs.rs
index 2cfc61af..0a0dab7f 100644
--- a/src/sys/statvfs.rs
+++ b/src/sys/statvfs.rs
@@ -7,7 +7,8 @@ use std::os::unix::io::AsRawFd;
 
 use libc::{self, c_ulong};
 
-use {Errno, Result, NixPath};
+use {Result, NixPath};
+use errno::Errno;
 
 bitflags!(
     /// File system mount Flags
diff --git a/src/sys/termios.rs b/src/sys/termios.rs
index 34d960ff..e27cee40 100644
--- a/src/sys/termios.rs
+++ b/src/sys/termios.rs
@@ -43,7 +43,8 @@
 //! termios.control_flags |= ControlFlags::CS5;
 //! ```
 
-use {Errno, Result};
+use Result;
+use errno::Errno;
 use libc::{self, c_int, tcflag_t};
 use std::cell::{Ref, RefCell};
 use std::convert::From;
diff --git a/src/sys/uio.rs b/src/sys/uio.rs
index 16426ab9..cd161423 100644
--- a/src/sys/uio.rs
+++ b/src/sys/uio.rs
@@ -1,7 +1,8 @@
 // Silence invalid warnings due to rust-lang/rust#16719
 #![allow(improper_ctypes)]
 
-use {Errno, Result};
+use Result;
+use errno::Errno;
 use libc::{self, c_int, c_void, size_t, off_t};
 use std::marker::PhantomData;
 use std::os::unix::io::RawFd;
diff --git a/src/sys/wait.rs b/src/sys/wait.rs
index 019b751f..6243634f 100644
--- a/src/sys/wait.rs
+++ b/src/sys/wait.rs
@@ -1,5 +1,6 @@
 use libc::{self, c_int};
-use {Errno, Result};
+use Result;
+use errno::Errno;
 use unistd::Pid;
 
 use sys::signal::Signal;