Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 260 insertions, 0 deletions

diff --git a/third_party/rust/net2/src/socket.rs b/third_party/rust/net2/src/socket.rs
new file mode 100644
index 0000000000..5b0f4935a9
--- /dev/null
+++ b/third_party/rust/net2/src/socket.rs
@@ -0,0 +1,260 @@
+// 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 std::fmt;
+use std::io;
+use std::mem;
+use std::net::{Ipv4Addr, Ipv6Addr, SocketAddr, SocketAddrV4, SocketAddrV6};
+#[cfg(any(unix, target_os = "wasi"))]
+use libc::c_int;
+#[cfg(windows)]
+use winapi::ctypes::c_int;
+
+use sys;
+use sys::c;
+
+pub struct Socket {
+    inner: sys::Socket,
+}
+
+impl Socket {
+    pub fn new(family: c_int, ty: c_int) -> io::Result<Socket> {
+        Ok(Socket { inner: try!(sys::Socket::new(family, ty)) })
+    }
+
+    pub fn bind(&self, addr: &SocketAddr) -> io::Result<()> {
+        let (addr, len) = addr2raw(addr);
+        unsafe {
+            ::cvt(c::bind(self.inner.raw(), addr.as_ptr(), len as c::socklen_t)).map(|_| ())
+        }
+    }
+
+    pub fn listen(&self, backlog: i32) -> io::Result<()> {
+        unsafe {
+            ::cvt(c::listen(self.inner.raw(), backlog)).map(|_| ())
+        }
+    }
+
+    pub fn connect(&self, addr: &SocketAddr) -> io::Result<()> {
+        let (addr, len) = addr2raw(addr);
+        unsafe {
+            ::cvt(c::connect(self.inner.raw(), addr.as_ptr(), len)).map(|_| ())
+        }
+    }
+
+    pub fn getsockname(&self) -> io::Result<SocketAddr> {
+        unsafe {
+            let mut storage: c::sockaddr_storage = mem::zeroed();
+            let mut len = mem::size_of_val(&storage) as c::socklen_t;
+            try!(::cvt(c::getsockname(self.inner.raw(),
+                                      &mut storage as *mut _ as *mut _,
+                                      &mut len)));
+            raw2addr(&storage, len)
+        }
+    }
+}
+
+impl fmt::Debug for Socket {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        self.inner.raw().fmt(f)
+    }
+}
+
+impl ::AsInner for Socket {
+    type Inner = sys::Socket;
+    fn as_inner(&self) -> &sys::Socket { &self.inner }
+}
+
+impl ::FromInner for Socket {
+    type Inner = sys::Socket;
+    fn from_inner(sock: sys::Socket) -> Socket {
+        Socket { inner: sock }
+    }
+}
+
+impl ::IntoInner for Socket {
+    type Inner = sys::Socket;
+    fn into_inner(self) -> sys::Socket { self.inner }
+}
+
+/// A type with the same memory layout as `c::sockaddr`. Used in converting Rust level
+/// SocketAddr* types into their system representation. The benefit of this specific
+/// type over using `c::sockaddr_storage` is that this type is exactly as large as it
+/// needs to be and not a lot larger.
+#[repr(C)]
+pub(crate) union SocketAddrCRepr {
+    v4: c::sockaddr_in,
+    v6: c::sockaddr_in6,
+}
+
+impl SocketAddrCRepr {
+    pub(crate) fn as_ptr(&self) -> *const c::sockaddr {
+        self as *const _ as *const c::sockaddr
+    }
+}
+
+fn addr2raw(addr: &SocketAddr) -> (SocketAddrCRepr, c::socklen_t) {
+    match addr {
+        &SocketAddr::V4(ref v4) => addr2raw_v4(v4),
+        &SocketAddr::V6(ref v6) => addr2raw_v6(v6),
+    }
+}
+
+#[cfg(unix)]
+fn addr2raw_v4(addr: &SocketAddrV4) -> (SocketAddrCRepr, c::socklen_t) {
+    let sin_addr = c::in_addr {
+        s_addr: u32::from(*addr.ip()).to_be(),
+    };
+
+    let sockaddr = SocketAddrCRepr {
+        v4: c::sockaddr_in {
+            sin_family: c::AF_INET as c::sa_family_t,
+            sin_port: addr.port().to_be(),
+            sin_addr,
+            #[cfg(not(target_os = "haiku"))]
+            sin_zero: [0; 8],
+            #[cfg(target_os = "haiku")]
+            sin_zero: [0; 24],
+            #[cfg(any(
+                target_os = "dragonfly",
+                target_os = "freebsd",
+                target_os = "ios",
+                target_os = "macos",
+                target_os = "netbsd",
+                target_os = "openbsd",
+                target_os = "haiku",
+            ))]
+            sin_len: 0,
+        },
+    };
+    (sockaddr, mem::size_of::<c::sockaddr_in>() as c::socklen_t)
+}
+
+#[cfg(windows)]
+fn addr2raw_v4(addr: &SocketAddrV4) -> (SocketAddrCRepr, c::socklen_t) {
+    let sin_addr = unsafe {
+        let mut s_un = mem::zeroed::<c::in_addr_S_un>();
+        *s_un.S_addr_mut() = u32::from(*addr.ip()).to_be();
+        c::IN_ADDR { S_un: s_un }
+    };
+
+    let sockaddr = SocketAddrCRepr {
+        v4: c::sockaddr_in {
+            sin_family: c::AF_INET as c::sa_family_t,
+            sin_port: addr.port().to_be(),
+            sin_addr,
+            sin_zero: [0; 8],
+        },
+    };
+    (sockaddr, mem::size_of::<c::sockaddr_in>() as c::socklen_t)
+}
+
+#[cfg(unix)]
+fn addr2raw_v6(addr: &SocketAddrV6) -> (SocketAddrCRepr, c::socklen_t) {
+    let sin6_addr = {
+        let mut sin6_addr = unsafe { mem::zeroed::<c::in6_addr>() };
+        sin6_addr.s6_addr = addr.ip().octets();
+        sin6_addr
+    };
+
+    let sockaddr = SocketAddrCRepr {
+        v6: c::sockaddr_in6 {
+            sin6_family: c::AF_INET6 as c::sa_family_t,
+            sin6_port: addr.port().to_be(),
+            sin6_addr,
+            sin6_flowinfo: addr.flowinfo(),
+            sin6_scope_id: addr.scope_id(),
+            #[cfg(any(
+                target_os = "dragonfly",
+                target_os = "freebsd",
+                target_os = "ios",
+                target_os = "macos",
+                target_os = "netbsd",
+                target_os = "openbsd",
+                target_os = "haiku",
+            ))]
+            sin6_len: 0,
+            #[cfg(any(target_os = "solaris", target_os = "illumos"))]
+            __sin6_src_id: 0,
+        },
+    };
+    (sockaddr, mem::size_of::<c::sockaddr_in6>() as c::socklen_t)
+}
+
+#[cfg(windows)]
+fn addr2raw_v6(addr: &SocketAddrV6) -> (SocketAddrCRepr, c::socklen_t) {
+    let sin6_addr = unsafe {
+        let mut u = mem::zeroed::<c::in6_addr_u>();
+        *u.Byte_mut() = addr.ip().octets();
+        c::IN6_ADDR { u }
+    };
+    let scope_id = unsafe {
+        let mut u = mem::zeroed::<c::SOCKADDR_IN6_LH_u>();
+        *u.sin6_scope_id_mut() = addr.scope_id();
+        u
+    };
+
+    let sockaddr = SocketAddrCRepr {
+        v6: c::sockaddr_in6 {
+            sin6_family: c::AF_INET6 as c::sa_family_t,
+            sin6_port: addr.port().to_be(),
+            sin6_addr,
+            sin6_flowinfo: addr.flowinfo(),
+            u: scope_id,
+        },
+    };
+    (sockaddr, mem::size_of::<c::sockaddr_in6>() as c::socklen_t)
+}
+
+fn raw2addr(storage: &c::sockaddr_storage, len: c::socklen_t) -> io::Result<SocketAddr> {
+    match storage.ss_family as c_int {
+        c::AF_INET => {
+            unsafe {
+                assert!(len as usize >= mem::size_of::<c::sockaddr_in>());
+                let sa = storage as *const _ as *const c::sockaddr_in;
+                let bits = c::sockaddr_in_u32(&(*sa));
+                let ip = Ipv4Addr::new((bits >> 24) as u8,
+                                       (bits >> 16) as u8,
+                                       (bits >> 8) as u8,
+                                       bits as u8);
+                Ok(SocketAddr::V4(SocketAddrV4::new(ip, ::ntoh((*sa).sin_port))))
+            }
+        }
+        c::AF_INET6 => {
+            unsafe {
+                assert!(len as usize >= mem::size_of::<c::sockaddr_in6>());
+
+                let sa = storage as *const _ as *const c::sockaddr_in6;
+                #[cfg(windows)]      let arr = (*sa).sin6_addr.u.Byte();
+                #[cfg(not(windows))] let arr = (*sa).sin6_addr.s6_addr;
+
+                let ip = Ipv6Addr::new(
+                    (arr[0] as u16) << 8 | (arr[1] as u16),
+                    (arr[2] as u16) << 8 | (arr[3] as u16),
+                    (arr[4] as u16) << 8 | (arr[5] as u16),
+                    (arr[6] as u16) << 8 | (arr[7] as u16),
+                    (arr[8] as u16) << 8 | (arr[9] as u16),
+                    (arr[10] as u16) << 8 | (arr[11] as u16),
+                    (arr[12] as u16) << 8 | (arr[13] as u16),
+                    (arr[14] as u16) << 8 | (arr[15] as u16),
+                );
+
+                #[cfg(windows)]      let sin6_scope_id = *(*sa).u.sin6_scope_id();
+                #[cfg(not(windows))] let sin6_scope_id = (*sa).sin6_scope_id;
+
+                Ok(SocketAddr::V6(SocketAddrV6::new(ip,
+                                                    ::ntoh((*sa).sin6_port),
+                                                    (*sa).sin6_flowinfo,
+                                                    sin6_scope_id)))
+            }
+        }
+        _ => Err(io::Error::new(io::ErrorKind::InvalidInput, "invalid argument")),
+    }
+}