1// Copyright (c) 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "base/process/process_handle.h"
6
7#include <libproc.h>
8#include <sys/sysctl.h>
9#include <sys/types.h>
10
11#include "base/logging.h"
12
13namespace base {
14
15ProcessId GetParentProcessId(ProcessHandle process) {
16  struct kinfo_proc info;
17  size_t length = sizeof(struct kinfo_proc);
18  int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process };
19  if (sysctl(mib, 4, &info, &length, NULL, 0) < 0) {
20    DPLOG(ERROR) << "sysctl";
21    return -1;
22  }
23  if (length == 0)
24    return -1;
25  return info.kp_eproc.e_ppid;
26}
27
28FilePath GetProcessExecutablePath(ProcessHandle process) {
29  char pathbuf[PROC_PIDPATHINFO_MAXSIZE];
30  if (!proc_pidpath(process, pathbuf, sizeof(pathbuf)))
31    return FilePath();
32
33  return FilePath(pathbuf);
34}
35
36}  // namespace base
37