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// Copyright 2014 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.
// This file is used to handle differences in Mach message IDs and structures
// that occur between different OS versions. The Mach messages that the sandbox
// is interested in are decoded using information derived from the open-source
// libraries, i.e. <>. While
// these messages definitions are open source, they are not considered part of
// the stable OS API, and so differences do exist between OS versions.
#include <mach/mach.h>
#include <string>
namespace sandbox {
typedef std::string (*LookUp2GetRequestName)(const mach_msg_header_t*);
typedef void (*LookUp2FillReply)(mach_msg_header_t*, mach_port_t service_port);
typedef bool (*SwapIntegerIsGetOnly)(const mach_msg_header_t*);
struct LaunchdCompatibilityShim {
// The msgh_id for look_up2.
mach_msg_id_t msg_id_look_up2;
// The msgh_id for swap_integer.
mach_msg_id_t msg_id_swap_integer;
// A function to take a look_up2 message and return the string service name
// that was requested via the message.
LookUp2GetRequestName look_up2_get_request_name;
// A function to formulate a reply to a look_up2 message, given the reply
// message and the port to return as the service.
LookUp2FillReply look_up2_fill_reply;
// A function to take a swap_integer message and return true if the message
// is only getting the value of a key, neither setting it directly, nor
// swapping two keys.
SwapIntegerIsGetOnly swap_integer_is_get_only;
// Gets the compatibility shim for the launchd job subsystem.
const LaunchdCompatibilityShim GetLaunchdCompatibilityShim();
} // namespace sandbox