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 <stddef.h>
9 #include <sys/sysctl.h>
10 #include <sys/types.h>
11
12 #include "base/logging.h"
13
14 namespace base {
15
GetParentProcessId(ProcessHandle process)16 ProcessId GetParentProcessId(ProcessHandle process) {
17 struct kinfo_proc info;
18 size_t length = sizeof(struct kinfo_proc);
19 int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process };
20 if (sysctl(mib, 4, &info, &length, NULL, 0) < 0) {
21 DPLOG(ERROR) << "sysctl";
22 return -1;
23 }
24 if (length == 0)
25 return -1;
26 return info.kp_eproc.e_ppid;
27 }
28
GetProcessExecutablePath(ProcessHandle process)29 FilePath GetProcessExecutablePath(ProcessHandle process) {
30 char pathbuf[PROC_PIDPATHINFO_MAXSIZE];
31 if (!proc_pidpath(process, pathbuf, sizeof(pathbuf)))
32 return FilePath();
33
34 return FilePath(pathbuf);
35 }
36
37 } // namespace base
38