mirror of
https://github.com/deneraraujo/OpenVPNAdapter.git
synced 2026-02-11 00:00:08 +08:00
60 lines
1.9 KiB
C++
60 lines
1.9 KiB
C++
// OpenVPN -- An application to securely tunnel IP networks
|
|
// over a single port, with support for SSL/TLS-based
|
|
// session authentication and key exchange,
|
|
// packet encryption, packet authentication, and
|
|
// packet compression.
|
|
//
|
|
// Copyright (C) 2012-2017 OpenVPN Inc.
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License Version 3
|
|
// as published by the Free Software Foundation.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program in the COPYING file.
|
|
// If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
#ifndef OPENVPN_LINUX_DAEMON_ALIVE_H
|
|
#define OPENVPN_LINUX_DAEMON_ALIVE_H
|
|
|
|
#include <openvpn/common/file.hpp>
|
|
#include <openvpn/common/string.hpp>
|
|
#include <openvpn/common/number.hpp>
|
|
|
|
namespace openvpn {
|
|
inline int daemon_pid(const std::string& cmd,
|
|
const std::string& pidfile)
|
|
{
|
|
try {
|
|
std::string pidstr = read_text(pidfile);
|
|
string::trim_crlf(pidstr);
|
|
const std::string cmdline_fn = "/proc/" + pidstr + "/cmdline";
|
|
BufferPtr cmdbuf = read_binary_linear(cmdline_fn);
|
|
const size_t len = ::strnlen((const char *)cmdbuf->c_data(), cmdbuf->size());
|
|
if (cmd == std::string((const char *)cmdbuf->c_data(), len))
|
|
{
|
|
int ret;
|
|
if (parse_number(pidstr, ret))
|
|
return ret;
|
|
}
|
|
}
|
|
catch (const std::exception& e)
|
|
{
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
inline bool is_daemon_alive(const std::string& cmd,
|
|
const std::string& pidfile)
|
|
{
|
|
return daemon_pid(cmd, pidfile) >= 0;
|
|
}
|
|
}
|
|
|
|
#endif
|