Allow building mojo_shell and non-graphical apps/services on a Mac

mojo/dart/embedder/io/internet_address_android.cc

-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include <arpa/inet.h>
-#include <netdb.h>
-#include <sys/socket.h>
-
-#include "mojo/dart/embedder/io/internet_address.h"
-
-namespace mojo {
-namespace dart {
-
-static void SetupSockAddr(sockaddr_storage* dest,
-                          socklen_t* salen,
-                          const RawAddr& addr, intptr_t addr_length) {
-  CHECK((addr_length == 4) || (addr_length == 16));
-  if (addr_length == 4) {
-    dest->ss_family = AF_INET;
-    sockaddr_in* dest4 = reinterpret_cast<sockaddr_in*>(dest);
-    *salen = sizeof(*dest4);
-    memmove(&(dest4->sin_addr), &addr.bytes[0], addr_length);
-  } else {
-    dest->ss_family = AF_INET6;
-    sockaddr_in6* dest6 = reinterpret_cast<sockaddr_in6*>(dest);
-    *salen = sizeof(*dest6);
-    memmove(&(dest6->sin6_addr), &addr.bytes[0], addr_length);
-  }
-}
-
-bool InternetAddress::Parse(int type, const char* address, RawAddr* addr) {
-  memset(addr, 0, IPV6_RAW_ADDR_LENGTH);
-  int result;
-  if (type == InternetAddress::TYPE_IPV4) {
-    struct sockaddr_in in;
-    result = inet_pton(AF_INET, address, &in.sin_addr);
-    memmove(addr, &in.sin_addr, IPV4_RAW_ADDR_LENGTH);
-  } else {
-    CHECK(type == InternetAddress::TYPE_IPV6);
-    sockaddr_in6 in6;
-    result = inet_pton(AF_INET6, address, &in6.sin6_addr);
-    memmove(addr, &in6.sin6_addr, IPV6_RAW_ADDR_LENGTH);
-  }
-  return result == 1;
-}
-
-bool InternetAddress::Reverse(const RawAddr& addr, intptr_t addr_length,
-                              char* host, intptr_t host_len,
-                              intptr_t* error_code,
-                              const char** error_description) {
-  CHECK(host_len >= NI_MAXHOST);
-  sockaddr_storage sock_addr;
-  socklen_t salen;
-  SetupSockAddr(&sock_addr, &salen, addr, addr_length);
-  int status = getnameinfo(reinterpret_cast<sockaddr*>(&sock_addr),
-                           salen,
-                           host,
-                           host_len,
-                           NULL,
-                           0,
-                           NI_NAMEREQD);
-  *error_code = status;
-  if (status != 0) {
-    CHECK(*error_description == NULL);
-    *error_description = gai_strerror(status);
-    return false;
-  }
-  return true;
-}
-
-}  // namespace dart
-}  // namespace mojo