1 // Copyright (c) 2011 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 <sys/sysctl.h>
8 #include <sys/types.h>
9 #include <sys/user.h>
10 #include <unistd.h>
11
12 namespace base {
13
GetParentProcessId(ProcessHandle process)14 ProcessId GetParentProcessId(ProcessHandle process) {
15 struct kinfo_proc info;
16 size_t length;
17 int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process };
18
19 if (sysctl(mib, arraysize(mib), &info, &length, NULL, 0) < 0)
20 return -1;
21
22 return info.ki_ppid;
23 }
24
GetProcessExecutablePath(ProcessHandle process)25 FilePath GetProcessExecutablePath(ProcessHandle process) {
26 char pathname[PATH_MAX];
27 size_t length;
28 int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, process };
29
30 length = sizeof(pathname);
31
32 if (sysctl(mib, arraysize(mib), pathname, &length, NULL, 0) < 0 ||
33 length == 0) {
34 return FilePath();
35 }
36
37 return FilePath(std::string(pathname));
38 }
39
40 } // namespace base
41