OpenE2K
/
rust
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Use hints with getaddrinfo() in std::net::lokup_host() 

When resolving a hostname, pass a hints struct where ai_socktype is
set to SOCK_STREAM in order to eliminate repeated results for each
protocol family.
This commit is contained in:
Ivan Nejgebauer 2016-07-07 12:03:31 +02:00
parent 4114b68eba
commit 0314d179aa
1 changed files with 11 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
src/libstd/sys/common/net.rs
View File

@ -152,9 +152,19 @@ pub fn lookup_host(host: &str) -> io::Result<LookupHost> {
init();
let c_host = CString::new(host)?;
let hints = c::addrinfo {
ai_flags: 0,
ai_family: 0,
ai_socktype: c::SOCK_STREAM,
ai_protocol: 0,
ai_addrlen: 0,
ai_addr: ptr::null_mut(),
ai_canonname: ptr::null_mut(),
ai_next: ptr::null_mut()
};
let mut res = ptr::null_mut();
unsafe {
cvt_gai(c::getaddrinfo(c_host.as_ptr(), ptr::null(), ptr::null(),
cvt_gai(c::getaddrinfo(c_host.as_ptr(), ptr::null(), &hints,
&mut res))?;
Ok(LookupHost { original: res, cur: res })
}