| 1 | /* |
|---|---|
| 2 | SPDX-FileCopyrightText: 2017 Chinmoy Ranjan Pradhan <chinmoyrp65@gmail.com> |
| 3 | |
| 4 | SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL |
| 5 | */ |
| 6 | |
| 7 | #include "fdsender.h" |
| 8 | |
| 9 | #include "../sharefd_p.h" |
| 10 | #include <cerrno> |
| 11 | #include <string.h> |
| 12 | |
| 13 | FdSender::FdSender(const std::string &path) |
| 14 | : m_socketDes(-1) |
| 15 | { |
| 16 | const SocketAddress addr(path); |
| 17 | if (!addr.address()) { |
| 18 | std::cerr << "Invalid socket address:"<< path << std::endl; |
| 19 | return; |
| 20 | } |
| 21 | |
| 22 | m_socketDes = ::socket(AF_UNIX, SOCK_STREAM | SOCK_NONBLOCK, protocol: 0); |
| 23 | if (m_socketDes == -1) { |
| 24 | std::cerr << "socket error:"<< strerror(errno) << std::endl; |
| 25 | return; |
| 26 | } |
| 27 | |
| 28 | if (::connect(fd: m_socketDes, addr: addr.address(), len: addr.length()) != 0) { |
| 29 | std::cerr << "connection error:"<< strerror(errno) << std::endl; |
| 30 | ::close(fd: m_socketDes); |
| 31 | m_socketDes = -1; |
| 32 | return; |
| 33 | } |
| 34 | } |
| 35 | |
| 36 | FdSender::~FdSender() |
| 37 | { |
| 38 | if (m_socketDes >= 0) { |
| 39 | ::close(fd: m_socketDes); |
| 40 | } |
| 41 | } |
| 42 | |
| 43 | bool FdSender::sendFileDescriptor(int fd) |
| 44 | { |
| 45 | FDMessageHeader msg; |
| 46 | cmsghdr *cmsg = msg.cmsgHeader(); |
| 47 | cmsg->cmsg_len = CMSG_LEN(sizeof(int)); |
| 48 | cmsg->cmsg_type = SCM_RIGHTS; |
| 49 | cmsg->cmsg_level = SOL_SOCKET; |
| 50 | memcpy(CMSG_DATA(cmsg), src: &fd, n: sizeof fd); |
| 51 | bool success = sendmsg(fd: m_socketDes, message: msg.message(), flags: 0) == 2; |
| 52 | ::close(fd: m_socketDes); |
| 53 | return success; |
| 54 | } |
| 55 | |
| 56 | bool FdSender::isConnected() const |
| 57 | { |
| 58 | return m_socketDes >= 0; |
| 59 | } |
| 60 |