public static IRubyObject gethostbyaddr(ThreadContext context, IRubyObject[] args) {
Ruby runtime = context.runtime;
IRubyObject[] ret = new IRubyObject[4];
ret[0] =
runtime.newString(
Sockaddr.addressFromString(runtime, args[0].convertToString().toString())
.getCanonicalHostName());
ret[1] = runtime.newArray();
ret[2] = runtime.newFixnum(2); // AF_INET
ret[3] = args[0];
return runtime.newArrayNoCopy(ret);
}
public static IRubyObject gethostbyname(ThreadContext context, IRubyObject hostname) {
Ruby runtime = context.runtime;
try {
InetAddress addr = getRubyInetAddress(hostname.convertToString().getByteList());
IRubyObject[] ret = new IRubyObject[4];
ret[0] = runtime.newString(addr.getCanonicalHostName());
ret[1] = runtime.newArray();
ret[2] = runtime.newFixnum(2); // AF_INET
ret[3] = runtime.newString(new ByteList(addr.getAddress()));
return runtime.newArrayNoCopy(ret);
} catch (UnknownHostException e) {
throw sockerr(runtime, "gethostbyname: name or service not known");
}
}
protected IRubyObject addrFor(ThreadContext context, InetSocketAddress addr, boolean reverse) {
Ruby r = context.runtime;
IRubyObject[] ret = new IRubyObject[4];
if (addr.getAddress() instanceof Inet6Address) {
ret[0] = r.newString("AF_INET6");
} else {
ret[0] = r.newString("AF_INET");
}
ret[1] = r.newFixnum(addr.getPort());
String hostAddress = addr.getAddress().getHostAddress();
if (!reverse || doNotReverseLookup(context)) {
ret[2] = r.newString(hostAddress);
} else {
ret[2] = r.newString(addr.getHostName());
}
ret[3] = r.newString(hostAddress);
return r.newArrayNoCopy(ret);
}