Crate os_socketaddr [−] [src]
This crate provides a type that can act as a platform-native socket address
(i.e. libc::sockaddr
)
#Motivation
The std crate provides std::net::SocketAddr
for managing socket addresses. Its V4
variant
encapsulates a libc::sockaddr_in
and its V6
variant encapsulates a libc::sockaddr_in6
.
However there is no easy way to convert SocketAddr
from/into a libc::sockaddr
, because
SocketAddr
is a rust enum.
This crate provides OsSocketAddr
which holds a libc::sockaddr
(containing an IPv4 or IPv6
address) and the conversion functions from/into std::net::SocketAddr
.
#Example
extern crate libc; extern crate os_socketaddr; use std::net::SocketAddr; use self::libc::{c_int, c_void, size_t, ssize_t}; use self::os_socketaddr::OsSocketAddr; fn send(socket: c_int, buf: &[u8], dst: SocketAddr) -> ssize_t { let addr : OsSocketAddr = dst.into(); unsafe { libc::sendto(socket, buf.as_ptr() as *const c_void, buf.len() as size_t, 0, addr.as_ptr(), addr.len()) } } fn receive(socket: c_int, buf: &mut[u8]) -> (ssize_t, Option<SocketAddr>) { let mut addr = OsSocketAddr::new(); let mut addrlen = addr.capacity(); let nb = unsafe { libc::recvfrom(socket, buf.as_mut_ptr() as *mut c_void, buf.len(), 0, addr.as_mut_ptr(), &mut addrlen as *mut _) }; (nb, addr.into()) }
Structs
OsSocketAddr |
A type for handling platform-native socket addresses ( |