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https://github.com/OpenVPN/openvpn3.git
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dde1574596
This is the result after running 'clang-format -i' on all C++ files and headers, with the defined formatting rules in .clang-format. Only the openvpn/common/unicode-impl.hpp has been excluded, as that is mostly a copy of an external project. Signed-off-by: David Sommerseth <davids@openvpn.net>
61 lines
2.0 KiB
C++
61 lines
2.0 KiB
C++
// OpenVPN -- An application to securely tunnel IP networks
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// over a single port, with support for SSL/TLS-based
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// session authentication and key exchange,
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// packet encryption, packet authentication, and
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// packet compression.
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//
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// Copyright (C) 2012-2022 OpenVPN Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License Version 3
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// as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program in the COPYING file.
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// If not, see <http://www.gnu.org/licenses/>.
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#ifndef OPENVPN_LINUX_DAEMON_ALIVE_H
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#define OPENVPN_LINUX_DAEMON_ALIVE_H
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#include <openvpn/common/file.hpp>
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#include <openvpn/common/string.hpp>
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#include <openvpn/common/number.hpp>
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namespace openvpn {
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inline int daemon_pid(const std::string &cmd,
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const std::string &pidfile)
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{
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try
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{
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std::string pidstr = read_text(pidfile);
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string::trim_crlf(pidstr);
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const std::string cmdline_fn = "/proc/" + pidstr + "/cmdline";
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BufferPtr cmdbuf = read_binary_linear(cmdline_fn);
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const size_t len = ::strnlen((const char *)cmdbuf->c_data(), cmdbuf->size());
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if (cmd == std::string((const char *)cmdbuf->c_data(), len))
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{
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int ret;
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if (parse_number(pidstr, ret))
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return ret;
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}
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}
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catch (const std::exception &e)
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{
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}
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return -1;
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}
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inline bool is_daemon_alive(const std::string &cmd,
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const std::string &pidfile)
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{
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return daemon_pid(cmd, pidfile) >= 0;
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}
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} // namespace openvpn
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#endif
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