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- /*************************************************************************/
- /* stream_peer_tcp_posix.cpp */
- /*************************************************************************/
- /* This file is part of: */
- /* GODOT ENGINE */
- /* https://godotengine.org */
- /*************************************************************************/
- /* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
- /* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md) */
- /* */
- /* Permission is hereby granted, free of charge, to any person obtaining */
- /* a copy of this software and associated documentation files (the */
- /* "Software"), to deal in the Software without restriction, including */
- /* without limitation the rights to use, copy, modify, merge, publish, */
- /* distribute, sublicense, and/or sell copies of the Software, and to */
- /* permit persons to whom the Software is furnished to do so, subject to */
- /* the following conditions: */
- /* */
- /* The above copyright notice and this permission notice shall be */
- /* included in all copies or substantial portions of the Software. */
- /* */
- /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
- /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
- /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
- /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
- /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
- /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
- /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
- /*************************************************************************/
- #ifdef UNIX_ENABLED
- #include "stream_peer_tcp_posix.h"
- #include <errno.h>
- #include <netdb.h>
- #include <poll.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <sys/ioctl.h>
- #include <sys/types.h>
- #include <unistd.h>
- #ifndef NO_FCNTL
- #ifdef __HAIKU__
- #include <fcntl.h>
- #else
- #include <sys/fcntl.h>
- #endif
- #else
- #include <sys/ioctl.h>
- #endif
- #include <netinet/in.h>
- #include <sys/socket.h>
- #ifdef JAVASCRIPT_ENABLED
- #include <arpa/inet.h>
- #endif
- #include <netinet/tcp.h>
- #if defined(OSX_ENABLED) || defined(IPHONE_ENABLED)
- #define MSG_NOSIGNAL SO_NOSIGPIPE
- #endif
- #include "drivers/unix/socket_helpers.h"
- StreamPeerTCP *StreamPeerTCPPosix::_create() {
- return memnew(StreamPeerTCPPosix);
- };
- void StreamPeerTCPPosix::make_default() {
- StreamPeerTCP::_create = StreamPeerTCPPosix::_create;
- };
- Error StreamPeerTCPPosix::_block(int p_sockfd, bool p_read, bool p_write) const {
- struct pollfd pfd;
- pfd.fd = p_sockfd;
- pfd.events = 0;
- if (p_read)
- pfd.events |= POLLIN;
- if (p_write)
- pfd.events |= POLLOUT;
- pfd.revents = 0;
- int ret = poll(&pfd, 1, -1);
- return ret < 0 ? FAILED : OK;
- };
- Error StreamPeerTCPPosix::_poll_connection() const {
- ERR_FAIL_COND_V(status != STATUS_CONNECTING || sockfd == -1, FAILED);
- struct sockaddr_storage their_addr;
- size_t addr_size = _set_sockaddr(&their_addr, peer_host, peer_port, sock_type);
- if (::connect(sockfd, (struct sockaddr *)&their_addr, addr_size) == -1) {
- if (errno == EISCONN) {
- status = STATUS_CONNECTED;
- return OK;
- };
- if (errno == EINPROGRESS || errno == EALREADY) {
- return OK;
- }
- status = STATUS_ERROR;
- return ERR_CONNECTION_ERROR;
- } else {
- status = STATUS_CONNECTED;
- return OK;
- };
- return OK;
- };
- void StreamPeerTCPPosix::set_socket(int p_sockfd, IP_Address p_host, int p_port, IP::Type p_sock_type) {
- sock_type = p_sock_type;
- sockfd = p_sockfd;
- #ifndef NO_FCNTL
- fcntl(sockfd, F_SETFL, O_NONBLOCK);
- #else
- int bval = 1;
- ioctl(sockfd, FIONBIO, &bval);
- #endif
- status = STATUS_CONNECTING;
- peer_host = p_host;
- peer_port = p_port;
- };
- Error StreamPeerTCPPosix::connect_to_host(const IP_Address &p_host, uint16_t p_port) {
- ERR_FAIL_COND_V(!p_host.is_valid(), ERR_INVALID_PARAMETER);
- sock_type = p_host.is_ipv4() ? IP::TYPE_IPV4 : IP::TYPE_IPV6;
- sockfd = _socket_create(sock_type, SOCK_STREAM, IPPROTO_TCP);
- if (sockfd == -1) {
- ERR_PRINT("Socket creation failed!");
- disconnect_from_host();
- //perror("socket");
- return FAILED;
- };
- #ifndef NO_FCNTL
- fcntl(sockfd, F_SETFL, O_NONBLOCK);
- #else
- int bval = 1;
- ioctl(sockfd, FIONBIO, &bval);
- #endif
- struct sockaddr_storage their_addr;
- size_t addr_size = _set_sockaddr(&their_addr, p_host, p_port, sock_type);
- errno = 0;
- if (::connect(sockfd, (struct sockaddr *)&their_addr, addr_size) == -1 && errno != EINPROGRESS) {
- ERR_PRINT("Connection to remote host failed!");
- disconnect_from_host();
- return FAILED;
- };
- if (errno == EINPROGRESS) {
- status = STATUS_CONNECTING;
- } else {
- status = STATUS_CONNECTED;
- };
- peer_host = p_host;
- peer_port = p_port;
- return OK;
- };
- Error StreamPeerTCPPosix::write(const uint8_t *p_data, int p_bytes, int &r_sent, bool p_block) {
- if (status == STATUS_NONE || status == STATUS_ERROR) {
- return FAILED;
- };
- if (status != STATUS_CONNECTED) {
- if (_poll_connection() != OK) {
- return FAILED;
- };
- if (status != STATUS_CONNECTED) {
- r_sent = 0;
- return OK;
- };
- };
- int data_to_send = p_bytes;
- const uint8_t *offset = p_data;
- if (sockfd == -1) return FAILED;
- errno = 0;
- int total_sent = 0;
- while (data_to_send) {
- int sent_amount = send(sockfd, offset, data_to_send, MSG_NOSIGNAL);
- //printf("Sent TCP data of %d bytes, errno %d\n", sent_amount, errno);
- if (sent_amount == -1) {
- if (errno != EAGAIN) {
- perror("shit?");
- disconnect_from_host();
- ERR_PRINT("Server disconnected!\n");
- return FAILED;
- };
- if (!p_block) {
- r_sent = total_sent;
- return OK;
- };
- _block(sockfd, false, true);
- } else {
- data_to_send -= sent_amount;
- offset += sent_amount;
- total_sent += sent_amount;
- };
- }
- r_sent = total_sent;
- return OK;
- };
- Error StreamPeerTCPPosix::read(uint8_t *p_buffer, int p_bytes, int &r_received, bool p_block) {
- if (!is_connected_to_host()) {
- return FAILED;
- };
- if (status == STATUS_CONNECTING) {
- if (_poll_connection() != OK) {
- return FAILED;
- };
- if (status != STATUS_CONNECTED) {
- r_received = 0;
- return OK;
- };
- };
- int to_read = p_bytes;
- int total_read = 0;
- errno = 0;
- while (to_read) {
- int read = recv(sockfd, p_buffer + total_read, to_read, 0);
- if (read == -1) {
- if (errno != EAGAIN) {
- perror("shit?");
- disconnect_from_host();
- ERR_PRINT("Server disconnected!\n");
- return FAILED;
- };
- if (!p_block) {
- r_received = total_read;
- return OK;
- };
- _block(sockfd, true, false);
- } else if (read == 0) {
- sockfd = -1;
- status = STATUS_NONE;
- peer_port = 0;
- peer_host = IP_Address();
- return ERR_FILE_EOF;
- } else {
- to_read -= read;
- total_read += read;
- };
- };
- r_received = total_read;
- return OK;
- };
- void StreamPeerTCPPosix::set_nodelay(bool p_enabled) {
- ERR_FAIL_COND(!is_connected_to_host());
- int flag = p_enabled ? 1 : 0;
- setsockopt(sockfd, IPPROTO_TCP, TCP_NODELAY, (char *)&flag, sizeof(int));
- }
- bool StreamPeerTCPPosix::is_connected_to_host() const {
- if (status == STATUS_NONE || status == STATUS_ERROR) {
- return false;
- };
- if (status != STATUS_CONNECTED) {
- return true;
- };
- return (sockfd != -1);
- };
- StreamPeerTCP::Status StreamPeerTCPPosix::get_status() const {
- if (status == STATUS_CONNECTING) {
- _poll_connection();
- };
- return status;
- };
- void StreamPeerTCPPosix::disconnect_from_host() {
- if (sockfd != -1)
- close(sockfd);
- sock_type = IP::TYPE_NONE;
- sockfd = -1;
- status = STATUS_NONE;
- peer_port = 0;
- peer_host = IP_Address();
- };
- Error StreamPeerTCPPosix::put_data(const uint8_t *p_data, int p_bytes) {
- int total;
- return write(p_data, p_bytes, total, true);
- };
- Error StreamPeerTCPPosix::put_partial_data(const uint8_t *p_data, int p_bytes, int &r_sent) {
- return write(p_data, p_bytes, r_sent, false);
- };
- Error StreamPeerTCPPosix::get_data(uint8_t *p_buffer, int p_bytes) {
- int total;
- return read(p_buffer, p_bytes, total, true);
- };
- Error StreamPeerTCPPosix::get_partial_data(uint8_t *p_buffer, int p_bytes, int &r_received) {
- return read(p_buffer, p_bytes, r_received, false);
- };
- int StreamPeerTCPPosix::get_available_bytes() const {
- unsigned long len;
- int ret = ioctl(sockfd, FIONREAD, &len);
- ERR_FAIL_COND_V(ret == -1, 0)
- return len;
- }
- IP_Address StreamPeerTCPPosix::get_connected_host() const {
- return peer_host;
- };
- uint16_t StreamPeerTCPPosix::get_connected_port() const {
- return peer_port;
- };
- StreamPeerTCPPosix::StreamPeerTCPPosix() {
- sock_type = IP::TYPE_NONE;
- sockfd = -1;
- status = STATUS_NONE;
- peer_port = 0;
- };
- StreamPeerTCPPosix::~StreamPeerTCPPosix() {
- disconnect_from_host();
- };
- #endif
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