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authorAdam T. Carpenter <atc@53hor.net>2025-10-03 15:44:50 -0400
committerAdam T. Carpenter <atc@53hor.net>2025-10-03 15:44:50 -0400
commitff945fabb4d9b74822e0af7a63d042b59428003a (patch)
tree8c71e6bee217160cfa8300c25939eb4025782061
downloadfortune-pit-net-master.tar.xz
fortune-pit-net-master.zip
-rw-r--r--Program.cs69
-rw-r--r--fortune-pit-net.csproj11
-rw-r--r--fortune-pit-net.sln24
3 files changed, 104 insertions, 0 deletions
diff --git a/Program.cs b/Program.cs
new file mode 100644
index 0000000..5f8de30
--- /dev/null
+++ b/Program.cs
@@ -0,0 +1,69 @@
+using System;
+using System.Net;
+using System.Net.Sockets;
+
+const char DELIM = ' ';
+const int DELAY_DURATION_S = 990;
+
+short ReadPort() => args.Length != 0 && short.TryParse(args[0], out var port) ? port : (short)22;
+
+IList<string> ReadBanner() => Console.In.ReadToEnd().Split(DELIM, StringSplitOptions.RemoveEmptyEntries);
+
+async Task SshClientHandler(TcpClient client, IEnumerable<string> banner)
+{
+ var remote = client.Client.RemoteEndPoint;
+ Console.WriteLine($"{remote}: Client connected.");
+
+ try
+ {
+ using (client)
+ {
+ var stream = client.GetStream();
+ var writer = new StreamWriter(stream) { AutoFlush = true };
+
+ while (true)
+ {
+ foreach (var word in banner)
+ {
+ await writer.WriteAsync($"{word}{DELIM}");
+ await Task.Delay(DELAY_DURATION_S);
+ }
+
+ Console.WriteLine($"{remote}: Client read it all!");
+ }
+ }
+ }
+ catch (Exception ex)
+ {
+ Console.WriteLine($"{remote}: Client handler error: {ex.Message}");
+ }
+ finally
+ {
+ Console.WriteLine($"{remote}: Client hung up");
+ }
+}
+
+// main
+var banner = ReadBanner();
+var port = ReadPort();
+var listener = new TcpListener(IPAddress.Any, port);
+
+using (listener)
+{
+ listener.Start();
+ Console.WriteLine($"Listening on port {port}...");
+
+ while (true)
+ {
+ try
+ {
+ var client = await listener.AcceptTcpClientAsync();
+
+ _ = Task.Run(() => SshClientHandler(client, banner));
+ }
+ catch (Exception ex)
+ {
+ Console.WriteLine($"Accept error: {ex.Message}");
+ }
+ }
+} \ No newline at end of file
diff --git a/fortune-pit-net.csproj b/fortune-pit-net.csproj
new file mode 100644
index 0000000..8c4111f
--- /dev/null
+++ b/fortune-pit-net.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+ <PropertyGroup>
+ <OutputType>Exe</OutputType>
+ <TargetFramework>net9.0</TargetFramework>
+ <RootNamespace>fortune_pit_net</RootNamespace>
+ <ImplicitUsings>enable</ImplicitUsings>
+ <Nullable>enable</Nullable>
+ </PropertyGroup>
+
+</Project>
diff --git a/fortune-pit-net.sln b/fortune-pit-net.sln
new file mode 100644
index 0000000..053ecd3
--- /dev/null
+++ b/fortune-pit-net.sln
@@ -0,0 +1,24 @@
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.5.2.0
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "fortune-pit-net", "fortune-pit-net.csproj", "{411EEB40-238B-141E-1601-4515284FC02F}"
+EndProject
+Global
+ GlobalSection(SolutionConfigurationPlatforms) = preSolution
+ Debug|Any CPU = Debug|Any CPU
+ Release|Any CPU = Release|Any CPU
+ EndGlobalSection
+ GlobalSection(ProjectConfigurationPlatforms) = postSolution
+ {411EEB40-238B-141E-1601-4515284FC02F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {411EEB40-238B-141E-1601-4515284FC02F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {411EEB40-238B-141E-1601-4515284FC02F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {411EEB40-238B-141E-1601-4515284FC02F}.Release|Any CPU.Build.0 = Release|Any CPU
+ EndGlobalSection
+ GlobalSection(SolutionProperties) = preSolution
+ HideSolutionNode = FALSE
+ EndGlobalSection
+ GlobalSection(ExtensibilityGlobals) = postSolution
+ SolutionGuid = {CFB56DBE-DD5E-437D-B5AD-A79D112EE7BB}
+ EndGlobalSection
+EndGlobal