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// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/process/process_handle.h"
#include <limits.h>
#include <stddef.h>
#include <sys/sysctl.h>
#include <sys/types.h>
#include <sys/user.h>
#include <unistd.h>
#include "base/files/file_path.h"
#include "base/posix/sysctl.h"
#include "third_party/abseil-cpp/absl/types/optional.h"
namespace base {
ProcessId GetParentProcessId(ProcessHandle process) {
struct kinfo_proc info;
size_t length;
int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process };
if (sysctl(mib, std::size(mib), &info, &length, NULL, 0) < 0)
return -1;
return info.ki_ppid;
}
FilePath GetProcessExecutablePath(ProcessHandle process) {
absl::optional<std::string> pathname =
base::StringSysctl({CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, process});
return FilePath(pathname.value_or(std::string{}));
}
} // namespace base
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