Delete ctr-std to use my fork of the rust repo instead

1 files changed, 0 insertions, 424 deletions

diff --git a/ctr-std/src/sys/unix/net.rs b/ctr-std/src/sys/unix/net.rs
deleted file mode 100644
index 04d9f0b..0000000
--- a/ctr-std/src/sys/unix/net.rs
+++ /dev/null
@@ -1,424 +0,0 @@
-// Copyright 2015 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 ffi::CStr;
-use io;
-use libc::{self, c_int, c_void, size_t, sockaddr, socklen_t, EAI_SYSTEM, MSG_PEEK};
-use mem;
-use net::{SocketAddr, Shutdown};
-use str;
-use sys::fd::FileDesc;
-use sys_common::{AsInner, FromInner, IntoInner};
-use sys_common::net::{getsockopt, setsockopt, sockaddr_to_addr};
-use time::{Duration, Instant};
-use cmp;
-
-pub use sys::{cvt, cvt_r};
-pub extern crate libc as netc;
-
-pub type wrlen_t = size_t;
-
-// See below for the usage of SOCK_CLOEXEC, but this constant is only defined on
-// Linux currently (e.g. support doesn't exist on other platforms). In order to
-// get name resolution to work and things to compile we just define a dummy
-// SOCK_CLOEXEC here for other platforms. Note that the dummy constant isn't
-// actually ever used (the blocks below are wrapped in `if cfg!` as well.
-#[cfg(target_os = "linux")]
-use libc::SOCK_CLOEXEC;
-#[cfg(not(target_os = "linux"))]
-const SOCK_CLOEXEC: c_int = 0;
-
-// Another conditional contant for name resolution: Macos et iOS use
-// SO_NOSIGPIPE as a setsockopt flag to disable SIGPIPE emission on socket.
-// Other platforms do otherwise.
-#[cfg(target_vendor = "apple")]
-use libc::SO_NOSIGPIPE;
-#[cfg(not(target_vendor = "apple"))]
-const SO_NOSIGPIPE: c_int = 0;
-
-pub struct Socket(FileDesc);
-
-pub fn init() {}
-
-pub fn cvt_gai(err: c_int) -> io::Result<()> {
-    if err == 0 {
-        return Ok(())
-    }
-
-    // We may need to trigger a glibc workaround. See on_resolver_failure() for details.
-    on_resolver_failure();
-
-    if err == EAI_SYSTEM {
-        return Err(io::Error::last_os_error())
-    }
-
-    let detail = unsafe {
-        str::from_utf8(CStr::from_ptr(libc::gai_strerror(err)).to_bytes()).unwrap()
-            .to_owned()
-    };
-    Err(io::Error::new(io::ErrorKind::Other,
-                       &format!("failed to lookup address information: {}",
-                                detail)[..]))
-}
-
-impl Socket {
-    pub fn new(addr: &SocketAddr, ty: c_int) -> io::Result<Socket> {
-        let fam = match *addr {
-            SocketAddr::V4(..) => libc::AF_INET,
-            SocketAddr::V6(..) => libc::AF_INET6,
-        };
-        Socket::new_raw(fam, ty)
-    }
-
-    pub fn new_raw(fam: c_int, ty: c_int) -> io::Result<Socket> {
-        unsafe {
-            // On linux we first attempt to pass the SOCK_CLOEXEC flag to
-            // atomically create the socket and set it as CLOEXEC. Support for
-            // this option, however, was added in 2.6.27, and we still support
-            // 2.6.18 as a kernel, so if the returned error is EINVAL we
-            // fallthrough to the fallback.
-            if cfg!(target_os = "linux") {
-                match cvt(libc::socket(fam, ty | SOCK_CLOEXEC, 0)) {
-                    Ok(fd) => return Ok(Socket(FileDesc::new(fd))),
-                    Err(ref e) if e.raw_os_error() == Some(libc::EINVAL) => {}
-                    Err(e) => return Err(e),
-                }
-            }
-
-            let fd = cvt(libc::socket(fam, ty, 0))?;
-            let fd = FileDesc::new(fd);
-            fd.set_cloexec()?;
-            let socket = Socket(fd);
-            if cfg!(target_vendor = "apple") {
-                setsockopt(&socket, libc::SOL_SOCKET, SO_NOSIGPIPE, 1)?;
-            }
-            Ok(socket)
-        }
-    }
-
-    pub fn new_pair(fam: c_int, ty: c_int) -> io::Result<(Socket, Socket)> {
-        unsafe {
-            let mut fds = [0, 0];
-
-            // Like above, see if we can set cloexec atomically
-            if cfg!(target_os = "linux") {
-                match cvt(libc::socketpair(fam, ty | SOCK_CLOEXEC, 0, fds.as_mut_ptr())) {
-                    Ok(_) => {
-                        return Ok((Socket(FileDesc::new(fds[0])), Socket(FileDesc::new(fds[1]))));
-                    }
-                    Err(ref e) if e.raw_os_error() == Some(libc::EINVAL) => {},
-                    Err(e) => return Err(e),
-                }
-            }
-
-            cvt(libc::socketpair(fam, ty, 0, fds.as_mut_ptr()))?;
-            let a = FileDesc::new(fds[0]);
-            let b = FileDesc::new(fds[1]);
-            a.set_cloexec()?;
-            b.set_cloexec()?;
-            Ok((Socket(a), Socket(b)))
-        }
-    }
-
-    pub fn connect_timeout(&self, addr: &SocketAddr, timeout: Duration) -> io::Result<()> {
-        self.set_nonblocking(true)?;
-        let r = unsafe {
-            let (addrp, len) = addr.into_inner();
-            cvt(libc::connect(self.0.raw(), addrp, len))
-        };
-        self.set_nonblocking(false)?;
-
-        match r {
-            Ok(_) => return Ok(()),
-            // there's no ErrorKind for EINPROGRESS :(
-            Err(ref e) if e.raw_os_error() == Some(libc::EINPROGRESS) => {}
-            Err(e) => return Err(e),
-        }
-
-        let mut pollfd = libc::pollfd {
-            fd: self.0.raw(),
-            events: libc::POLLOUT,
-            revents: 0,
-        };
-
-        if timeout.as_secs() == 0 && timeout.subsec_nanos() == 0 {
-            return Err(io::Error::new(io::ErrorKind::InvalidInput,
-                                      "cannot set a 0 duration timeout"));
-        }
-
-        let start = Instant::now();
-
-        loop {
-            let elapsed = start.elapsed();
-            if elapsed >= timeout {
-                return Err(io::Error::new(io::ErrorKind::TimedOut, "connection timed out"));
-            }
-
-            let timeout = timeout - elapsed;
-            let mut timeout = timeout.as_secs()
-                .saturating_mul(1_000)
-                .saturating_add(timeout.subsec_nanos() as u64 / 1_000_000);
-            if timeout == 0 {
-                timeout = 1;
-            }
-
-            let timeout = cmp::min(timeout, c_int::max_value() as u64) as c_int;
-
-            match unsafe { libc::poll(&mut pollfd, 1, timeout) } {
-                -1 => {
-                    let err = io::Error::last_os_error();
-                    if err.kind() != io::ErrorKind::Interrupted {
-                        return Err(err);
-                    }
-                }
-                0 => {}
-                _ => {
-                    // linux returns POLLOUT|POLLERR|POLLHUP for refused connections (!), so look
-                    // for POLLHUP rather than read readiness
-                    if pollfd.revents & libc::POLLHUP != 0 {
-                        let e = self.take_error()?
-                            .unwrap_or_else(|| {
-                                io::Error::new(io::ErrorKind::Other, "no error set after POLLHUP")
-                            });
-                        return Err(e);
-                    }
-
-                    return Ok(());
-                }
-            }
-        }
-    }
-
-    pub fn accept(&self, storage: *mut sockaddr, len: *mut socklen_t)
-                  -> io::Result<Socket> {
-        // Unfortunately the only known way right now to accept a socket and
-        // atomically set the CLOEXEC flag is to use the `accept4` syscall on
-        // Linux. This was added in 2.6.28, however, and because we support
-        // 2.6.18 we must detect this support dynamically.
-        if cfg!(target_os = "linux") {
-            weak! {
-                fn accept4(c_int, *mut sockaddr, *mut socklen_t, c_int) -> c_int
-            }
-            if let Some(accept) = accept4.get() {
-                let res = cvt_r(|| unsafe {
-                    accept(self.0.raw(), storage, len, SOCK_CLOEXEC)
-                });
-                match res {
-                    Ok(fd) => return Ok(Socket(FileDesc::new(fd))),
-                    Err(ref e) if e.raw_os_error() == Some(libc::ENOSYS) => {}
-                    Err(e) => return Err(e),
-                }
-            }
-        }
-
-        let fd = cvt_r(|| unsafe {
-            libc::accept(self.0.raw(), storage, len)
-        })?;
-        let fd = FileDesc::new(fd);
-        fd.set_cloexec()?;
-        Ok(Socket(fd))
-    }
-
-    pub fn duplicate(&self) -> io::Result<Socket> {
-        self.0.duplicate().map(Socket)
-    }
-
-    fn recv_with_flags(&self, buf: &mut [u8], flags: c_int) -> io::Result<usize> {
-        let ret = cvt(unsafe {
-            libc::recv(self.0.raw(),
-                       buf.as_mut_ptr() as *mut c_void,
-                       buf.len(),
-                       flags)
-        })?;
-        Ok(ret as usize)
-    }
-
-    pub fn read(&self, buf: &mut [u8]) -> io::Result<usize> {
-        self.recv_with_flags(buf, 0)
-    }
-
-    pub fn peek(&self, buf: &mut [u8]) -> io::Result<usize> {
-        self.recv_with_flags(buf, MSG_PEEK)
-    }
-
-    fn recv_from_with_flags(&self, buf: &mut [u8], flags: c_int)
-                            -> io::Result<(usize, SocketAddr)> {
-        let mut storage: libc::sockaddr_storage = unsafe { mem::zeroed() };
-        let mut addrlen = mem::size_of_val(&storage) as libc::socklen_t;
-
-        let n = cvt(unsafe {
-            libc::recvfrom(self.0.raw(),
-                        buf.as_mut_ptr() as *mut c_void,
-                        buf.len(),
-                        flags,
-                        &mut storage as *mut _ as *mut _,
-                        &mut addrlen)
-        })?;
-        Ok((n as usize, sockaddr_to_addr(&storage, addrlen as usize)?))
-    }
-
-    pub fn recv_from(&self, buf: &mut [u8]) -> io::Result<(usize, SocketAddr)> {
-        self.recv_from_with_flags(buf, 0)
-    }
-
-    pub fn peek_from(&self, buf: &mut [u8]) -> io::Result<(usize, SocketAddr)> {
-        self.recv_from_with_flags(buf, MSG_PEEK)
-    }
-
-    pub fn write(&self, buf: &[u8]) -> io::Result<usize> {
-        self.0.write(buf)
-    }
-
-    pub fn set_timeout(&self, dur: Option<Duration>, kind: libc::c_int) -> io::Result<()> {
-        let timeout = match dur {
-            Some(dur) => {
-                if dur.as_secs() == 0 && dur.subsec_nanos() == 0 {
-                    return Err(io::Error::new(io::ErrorKind::InvalidInput,
-                                              "cannot set a 0 duration timeout"));
-                }
-
-                let secs = if dur.as_secs() > libc::time_t::max_value() as u64 {
-                    libc::time_t::max_value()
-                } else {
-                    dur.as_secs() as libc::time_t
-                };
-                let mut timeout = libc::timeval {
-                    tv_sec: secs,
-                    tv_usec: (dur.subsec_nanos() / 1000) as libc::suseconds_t,
-                };
-                if timeout.tv_sec == 0 && timeout.tv_usec == 0 {
-                    timeout.tv_usec = 1;
-                }
-                timeout
-            }
-            None => {
-                libc::timeval {
-                    tv_sec: 0,
-                    tv_usec: 0,
-                }
-            }
-        };
-        setsockopt(self, libc::SOL_SOCKET, kind, timeout)
-    }
-
-    pub fn timeout(&self, kind: libc::c_int) -> io::Result<Option<Duration>> {
-        let raw: libc::timeval = getsockopt(self, libc::SOL_SOCKET, kind)?;
-        if raw.tv_sec == 0 && raw.tv_usec == 0 {
-            Ok(None)
-        } else {
-            let sec = raw.tv_sec as u64;
-            let nsec = (raw.tv_usec as u32) * 1000;
-            Ok(Some(Duration::new(sec, nsec)))
-        }
-    }
-
-    pub fn shutdown(&self, how: Shutdown) -> io::Result<()> {
-        let how = match how {
-            Shutdown::Write => libc::SHUT_WR,
-            Shutdown::Read => libc::SHUT_RD,
-            Shutdown::Both => libc::SHUT_RDWR,
-        };
-        cvt(unsafe { libc::shutdown(self.0.raw(), how) })?;
-        Ok(())
-    }
-
-    pub fn set_nodelay(&self, nodelay: bool) -> io::Result<()> {
-        setsockopt(self, libc::IPPROTO_TCP, libc::TCP_NODELAY, nodelay as c_int)
-    }
-
-    pub fn nodelay(&self) -> io::Result<bool> {
-        let raw: c_int = getsockopt(self, libc::IPPROTO_TCP, libc::TCP_NODELAY)?;
-        Ok(raw != 0)
-    }
-
-    pub fn set_nonblocking(&self, nonblocking: bool) -> io::Result<()> {
-        let mut nonblocking = nonblocking as libc::c_int;
-        cvt(unsafe { libc::ioctl(*self.as_inner(), libc::FIONBIO, &mut nonblocking) }).map(|_| ())
-    }
-
-    pub fn take_error(&self) -> io::Result<Option<io::Error>> {
-        let raw: c_int = getsockopt(self, libc::SOL_SOCKET, libc::SO_ERROR)?;
-        if raw == 0 {
-            Ok(None)
-        } else {
-            Ok(Some(io::Error::from_raw_os_error(raw as i32)))
-        }
-    }
-}
-
-impl AsInner<c_int> for Socket {
-    fn as_inner(&self) -> &c_int { self.0.as_inner() }
-}
-
-impl FromInner<c_int> for Socket {
-    fn from_inner(fd: c_int) -> Socket { Socket(FileDesc::new(fd)) }
-}
-
-impl IntoInner<c_int> for Socket {
-    fn into_inner(self) -> c_int { self.0.into_raw() }
-}
-
-// In versions of glibc prior to 2.26, there's a bug where the DNS resolver
-// will cache the contents of /etc/resolv.conf, so changes to that file on disk
-// can be ignored by a long-running program. That can break DNS lookups on e.g.
-// laptops where the network comes and goes. See
-// https://sourceware.org/bugzilla/show_bug.cgi?id=984. Note however that some
-// distros including Debian have patched glibc to fix this for a long time.
-//
-// A workaround for this bug is to call the res_init libc function, to clear
-// the cached configs. Unfortunately, while we believe glibc's implementation
-// of res_init is thread-safe, we know that other implementations are not
-// (https://github.com/rust-lang/rust/issues/43592). Code here in libstd could
-// try to synchronize its res_init calls with a Mutex, but that wouldn't
-// protect programs that call into libc in other ways. So instead of calling
-// res_init unconditionally, we call it only when we detect we're linking
-// against glibc version < 2.26. (That is, when we both know its needed and
-// believe it's thread-safe).
-#[cfg(target_env = "gnu")]
-fn on_resolver_failure() {
-    use sys;
-
-    // If the version fails to parse, we treat it the same as "not glibc".
-    if let Some(version) = sys::os::glibc_version() {
-        if version < (2, 26) {
-            unsafe { libc::res_init() };
-        }
-    }
-}
-
-#[cfg(not(target_env = "gnu"))]
-fn on_resolver_failure() {}
-
-#[cfg(all(test, taget_env = "gnu"))]
-mod test {
-    use super::*;
-
-    #[test]
-    fn test_res_init() {
-        // This mostly just tests that the weak linkage doesn't panic wildly...
-        res_init_if_glibc_before_2_26().unwrap();
-    }
-
-    #[test]
-    fn test_parse_glibc_version() {
-        let cases = [
-            ("0.0", Some((0, 0))),
-            ("01.+2", Some((1, 2))),
-            ("3.4.5.six", Some((3, 4))),
-            ("1", None),
-            ("1.-2", None),
-            ("1.foo", None),
-            ("foo.1", None),
-        ];
-        for &(version_str, parsed) in cases.iter() {
-            assert_eq!(parsed, parse_glibc_version(version_str));
-        }
-    }
-}