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|
// Copyright 2013 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 ai = std::io::net::addrinfo;
use std::libc::c_int;
use std::ptr::null;
use std::rt::task::BlockedTask;
use net;
use super::{Loop, UvError, Request, wait_until_woken_after, wakeup};
use uvll;
struct Addrinfo {
handle: *uvll::addrinfo,
}
struct Ctx {
slot: Option<BlockedTask>,
status: c_int,
addrinfo: Option<Addrinfo>,
}
pub struct GetAddrInfoRequest;
impl GetAddrInfoRequest {
pub fn run(loop_: &Loop, node: Option<&str>, service: Option<&str>,
hints: Option<ai::Hint>) -> Result<~[ai::Info], UvError> {
assert!(node.is_some() || service.is_some());
let (_c_node, c_node_ptr) = match node {
Some(n) => {
let c_node = n.to_c_str();
let c_node_ptr = c_node.with_ref(|r| r);
(Some(c_node), c_node_ptr)
}
None => (None, null())
};
let (_c_service, c_service_ptr) = match service {
Some(s) => {
let c_service = s.to_c_str();
let c_service_ptr = c_service.with_ref(|r| r);
(Some(c_service), c_service_ptr)
}
None => (None, null())
};
let hint = hints.map(|hint| {
let mut flags = 0;
each_ai_flag(|cval, aival| {
if hint.flags & (aival as uint) != 0 {
flags |= cval as i32;
}
});
let socktype = 0;
let protocol = 0;
uvll::addrinfo {
ai_flags: flags,
ai_family: hint.family as c_int,
ai_socktype: socktype,
ai_protocol: protocol,
ai_addrlen: 0,
ai_canonname: null(),
ai_addr: null(),
ai_next: null(),
}
});
let hint_ptr = hint.as_ref().map_or(null(), |x| x as *uvll::addrinfo);
let mut req = Request::new(uvll::UV_GETADDRINFO);
return match unsafe {
uvll::uv_getaddrinfo(loop_.handle, req.handle,
getaddrinfo_cb, c_node_ptr, c_service_ptr,
hint_ptr)
} {
0 => {
req.defuse(); // uv callback now owns this request
let mut cx = Ctx { slot: None, status: 0, addrinfo: None };
wait_until_woken_after(&mut cx.slot, || {
req.set_data(&cx);
});
match cx.status {
0 => Ok(accum_addrinfo(cx.addrinfo.get_ref())),
n => Err(UvError(n))
}
}
n => Err(UvError(n))
};
extern fn getaddrinfo_cb(req: *uvll::uv_getaddrinfo_t,
status: c_int,
res: *uvll::addrinfo) {
let req = Request::wrap(req);
assert!(status != uvll::ECANCELED);
let cx: &mut Ctx = unsafe { req.get_data() };
cx.status = status;
cx.addrinfo = Some(Addrinfo { handle: res });
wakeup(&mut cx.slot);
}
}
}
impl Drop for Addrinfo {
fn drop(&mut self) {
unsafe { uvll::uv_freeaddrinfo(self.handle) }
}
}
fn each_ai_flag(_f: |c_int, ai::Flag|) {
/* XXX: do we really want to support these?
unsafe {
f(uvll::rust_AI_ADDRCONFIG(), ai::AddrConfig);
f(uvll::rust_AI_ALL(), ai::All);
f(uvll::rust_AI_CANONNAME(), ai::CanonName);
f(uvll::rust_AI_NUMERICHOST(), ai::NumericHost);
f(uvll::rust_AI_NUMERICSERV(), ai::NumericServ);
f(uvll::rust_AI_PASSIVE(), ai::Passive);
f(uvll::rust_AI_V4MAPPED(), ai::V4Mapped);
}
*/
}
// Traverse the addrinfo linked list, producing a vector of Rust socket addresses
pub fn accum_addrinfo(addr: &Addrinfo) -> ~[ai::Info] {
unsafe {
let mut addr = addr.handle;
let mut addrs = ~[];
loop {
let rustaddr = net::sockaddr_to_socket_addr((*addr).ai_addr);
let mut flags = 0;
each_ai_flag(|cval, aival| {
if (*addr).ai_flags & cval != 0 {
flags |= aival as uint;
}
});
/* XXX: do we really want to support these
let protocol = match (*addr).ai_protocol {
p if p == uvll::rust_IPPROTO_UDP() => Some(ai::UDP),
p if p == uvll::rust_IPPROTO_TCP() => Some(ai::TCP),
_ => None,
};
let socktype = match (*addr).ai_socktype {
p if p == uvll::rust_SOCK_STREAM() => Some(ai::Stream),
p if p == uvll::rust_SOCK_DGRAM() => Some(ai::Datagram),
p if p == uvll::rust_SOCK_RAW() => Some(ai::Raw),
_ => None,
};
*/
let protocol = None;
let socktype = None;
addrs.push(ai::Info {
address: rustaddr,
family: (*addr).ai_family as uint,
socktype: socktype,
protocol: protocol,
flags: flags,
});
if (*addr).ai_next.is_not_null() {
addr = (*addr).ai_next;
} else {
break;
}
}
return addrs;
}
}
// cannot give tcp/ip permission without help of apk
#[cfg(test, not(target_os="android"))]
mod test {
use std::io::net::ip::{SocketAddr, Ipv4Addr};
use super::super::local_loop;
use super::GetAddrInfoRequest;
#[test]
fn getaddrinfo_test() {
let loop_ = &mut local_loop().loop_;
match GetAddrInfoRequest::run(loop_, Some("localhost"), None, None) {
Ok(infos) => {
let mut found_local = false;
let local_addr = &SocketAddr {
ip: Ipv4Addr(127, 0, 0, 1),
port: 0
};
for addr in infos.iter() {
found_local = found_local || addr.address == *local_addr;
}
assert!(found_local);
}
Err(e) => fail!("{:?}", e),
}
}
#[test]
fn issue_10663() {
let loop_ = &mut local_loop().loop_;
// Something should happen here, but this certainly shouldn't cause
// everything to die. The actual outcome we don't care too much about.
GetAddrInfoRequest::run(loop_, Some("irc.n0v4.com"), None,
None);
}
}
|
