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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/macros.h"
#include "base/process/process_handle.h"
#include <stddef.h>
#include <sys/sysctl.h>
#include <sys/types.h>
#include <unistd.h>
namespace base {
ProcessId GetParentProcessId(ProcessHandle process) {
struct kinfo_proc info;
size_t length;
int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process,
sizeof(struct kinfo_proc), 0 };
if (sysctl(mib, arraysize(mib), NULL, &length, NULL, 0) < 0)
return -1;
mib[5] = (length / sizeof(struct kinfo_proc));
if (sysctl(mib, arraysize(mib), &info, &length, NULL, 0) < 0)
return -1;
return info.p_ppid;
}
FilePath GetProcessExecutablePath(ProcessHandle process) {
struct kinfo_proc kp;
size_t len;
int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process,
sizeof(struct kinfo_proc), 0 };
if (sysctl(mib, arraysize(mib), NULL, &len, NULL, 0) == -1)
return FilePath();
mib[5] = (len / sizeof(struct kinfo_proc));
if (sysctl(mib, arraysize(mib), &kp, &len, NULL, 0) < 0)
return FilePath();
if ((kp.p_flag & P_SYSTEM) != 0)
return FilePath();
if (strcmp(kp.p_comm, "chrome") == 0)
return FilePath(kp.p_comm);
return FilePath();
}
} // namespace base
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