base/process/process_handle_freebsd.cc

   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
  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
  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