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/*
* Copyright (C) 2016 Simon Fels <morphis@gravedo.de>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU 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 warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "android/service/local_socket_connection.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#include <errno.h>
#define LOG_TAG "Anboxd"
#include <cutils/log.h>
namespace {
bool socket_error_is_transient(int error_code) {
return (error_code == EINTR);
}
}
namespace anbox {
LocalSocketConnection::LocalSocketConnection(const std::string &path) :
fd_(Fd::invalid) {
struct sockaddr_un socket_address;
memset(&socket_address, 0, sizeof(socket_address));
socket_address.sun_family = AF_UNIX;
memcpy(socket_address.sun_path, path.data(), path.size());
fd_ = Fd{socket(AF_UNIX, SOCK_STREAM, 0)};
if (connect(fd_, reinterpret_cast<sockaddr*>(&socket_address), sizeof(socket_address)) < 0)
throw std::runtime_error("Failed to connect to server socket");
}
LocalSocketConnection::~LocalSocketConnection() {
if (fd_ > 0)
::close(fd_);
}
ssize_t LocalSocketConnection::read_all(std::uint8_t *buffer, const size_t &size) {
ssize_t bytes_read = ::recv(fd_, reinterpret_cast<void*>(buffer), size, 0);
return bytes_read;
}
void LocalSocketConnection::send(char const* data, size_t length) {
size_t bytes_written{0};
while(bytes_written < length) {
ssize_t const result = ::send(fd_,
data + bytes_written,
length - bytes_written,
MSG_NOSIGNAL);
if (result < 0) {
if (socket_error_is_transient(errno))
continue;
else
throw std::runtime_error("Failed to send message to server");
}
bytes_written += result;
}
}
ssize_t LocalSocketConnection::send_raw(char const* data, size_t length) {
(void)data;
(void)length;
return -EIO;
}
} // namespace anbox
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