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-rw-r--r--Base/usr/share/man/man1/EchoServer.md23
-rw-r--r--Services/CMakeLists.txt1
-rw-r--r--Services/EchoServer/CMakeLists.txt7
-rw-r--r--Services/EchoServer/Client.cpp58
-rw-r--r--Services/EchoServer/Client.h49
-rw-r--r--Services/EchoServer/main.cpp99
6 files changed, 237 insertions, 0 deletions
diff --git a/Base/usr/share/man/man1/EchoServer.md b/Base/usr/share/man/man1/EchoServer.md
new file mode 100644
index 0000000000..7b945be7af
--- /dev/null
+++ b/Base/usr/share/man/man1/EchoServer.md
@@ -0,0 +1,23 @@
+## Name
+
+EchoServer - Serenity echo server
+
+## Synopsis
+
+```**sh
+$ EchoServer [options]
+```
+
+## Description
+
+EchoServer is a basic echo server for Serenity. By default, it runs on port 7.
+
+## Options
+
+* `-p`: Choose different port for EchoServer to attach to.
+
+## Examples
+
+```sh
+$ EchoServer -p 1234
+```
diff --git a/Services/CMakeLists.txt b/Services/CMakeLists.txt
index ca5b7a7de9..087cac6728 100644
--- a/Services/CMakeLists.txt
+++ b/Services/CMakeLists.txt
@@ -2,6 +2,7 @@ add_subdirectory(AudioServer)
add_subdirectory(ChessEngine)
add_subdirectory(Clipboard)
add_subdirectory(DHCPClient)
+add_subdirectory(EchoServer)
add_subdirectory(ImageDecoder)
add_subdirectory(LaunchServer)
add_subdirectory(LookupServer)
diff --git a/Services/EchoServer/CMakeLists.txt b/Services/EchoServer/CMakeLists.txt
new file mode 100644
index 0000000000..e7d67fe14e
--- /dev/null
+++ b/Services/EchoServer/CMakeLists.txt
@@ -0,0 +1,7 @@
+set(SOURCES
+ Client.cpp
+ main.cpp
+)
+
+serenity_bin(EchoServer)
+target_link_libraries(EchoServer LibCore)
diff --git a/Services/EchoServer/Client.cpp b/Services/EchoServer/Client.cpp
new file mode 100644
index 0000000000..874553915b
--- /dev/null
+++ b/Services/EchoServer/Client.cpp
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2020, the SerenityOS developers.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "Client.h"
+
+Client::Client(int id, RefPtr<Core::TCPSocket> socket)
+ : m_id(id)
+ , m_socket(move(socket))
+{
+ m_socket->on_ready_to_read = [this] { drain_socket(); };
+}
+
+void Client::drain_socket()
+{
+ NonnullRefPtr<Client> protect(*this);
+ while (m_socket->can_read()) {
+ auto buf = m_socket->read(1024);
+
+ dbg() << "Read " << buf.size() << " bytes: " << buf;
+
+ if (m_socket->eof()) {
+ quit();
+ break;
+ }
+
+ m_socket->write(buf);
+ }
+}
+
+void Client::quit()
+{
+ m_socket->close();
+ if (on_exit)
+ on_exit();
+}
diff --git a/Services/EchoServer/Client.h b/Services/EchoServer/Client.h
new file mode 100644
index 0000000000..23359fa79b
--- /dev/null
+++ b/Services/EchoServer/Client.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2020, the SerenityOS developers.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <LibCore/TCPSocket.h>
+
+class Client : public RefCounted<Client> {
+public:
+ static NonnullRefPtr<Client> create(int id, RefPtr<Core::TCPSocket> socket)
+ {
+ return adopt(*new Client(id, move(socket)));
+ }
+
+ Function<void()> on_exit;
+
+protected:
+ Client(int id, RefPtr<Core::TCPSocket> socket);
+
+ void drain_socket();
+ void quit();
+
+private:
+ int m_id { 0 };
+ RefPtr<Core::TCPSocket> m_socket;
+};
diff --git a/Services/EchoServer/main.cpp b/Services/EchoServer/main.cpp
new file mode 100644
index 0000000000..a4136c3df6
--- /dev/null
+++ b/Services/EchoServer/main.cpp
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2020, the SerenityOS developers.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "Client.h"
+#include <AK/HashMap.h>
+#include <AK/IPv4Address.h>
+#include <LibCore/ArgsParser.h>
+#include <LibCore/EventLoop.h>
+#include <LibCore/TCPServer.h>
+#include <LibCore/TCPSocket.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(int argc, char** argv)
+{
+ if (pledge("stdio cpath unix fattr inet id accept", nullptr) < 0) {
+ perror("pledge");
+ return 1;
+ }
+
+ if (unveil("/tmp/rpc", "rwc") < 0) {
+ perror("unveil");
+ return 1;
+ }
+
+ if (unveil(nullptr, nullptr) < 0) {
+ perror("unveil");
+ return 1;
+ }
+
+ int port = 7;
+
+ Core::ArgsParser args_parser;
+ args_parser.add_option(port, "Port to listen on", "port", 'p', "port");
+ args_parser.parse(argc, argv);
+
+ if ((u16)port != port) {
+ warnln("Invalid port number: {}", port);
+ exit(1);
+ }
+
+ Core::EventLoop event_loop;
+
+ auto server = Core::TCPServer::construct();
+
+ if (!server->listen({}, port)) {
+ warnln("Listening on 0.0.0.0:{} failed", port);
+ exit(1);
+ }
+
+ HashMap<int, NonnullRefPtr<Client>> clients;
+ int next_id = 0;
+
+ server->on_ready_to_accept = [&next_id, &clients, &server] {
+ int id = next_id++;
+
+ auto client_socket = server->accept();
+ if (!client_socket) {
+ perror("accept");
+ return;
+ }
+
+ outln("Client {} connected", id);
+
+ auto client = Client::create(id, move(client_socket));
+ client->on_exit = [&clients, id] {
+ clients.remove(id);
+ outln("Client {} disconnected", id);
+ };
+ clients.set(id, client);
+ };
+
+ outln("Listening on 0.0.0.0:{}", port);
+
+ return event_loop.exec();
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 19:00:55 +0000