From 72ba52557fc6c1307d38e8a743d327e686c615bd Mon Sep 17 00:00:00 2001
From: stephen mcquay <stephen@mcquay.me>
Date: Wed, 4 Feb 2015 21:08:44 -0800
Subject: [PATCH] added simple client/server

---
 cmd/rrecv/main.go | 43 +++++++++++++++++++++++++++++++++++++++++++
 cmd/rsend/main.go | 41 +++++++++++++++++++++++++++++++++++++++++
 robo.go           |  3 +++
 3 files changed, 87 insertions(+)
 create mode 100644 cmd/rrecv/main.go
 create mode 100644 cmd/rsend/main.go
 create mode 100644 robo.go

diff --git a/cmd/rrecv/main.go b/cmd/rrecv/main.go
new file mode 100644
index 0000000..bda8fe2
--- /dev/null
+++ b/cmd/rrecv/main.go
@@ -0,0 +1,43 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"net"
+	"os"
+
+	"mcquay.me/robo"
+)
+
+func main() {
+	ln, err := net.Listen("tcp", fmt.Sprintf(":%d", robo.Port))
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "%v\n", err)
+		os.Exit(1)
+
+	}
+
+	for {
+		conn, err := ln.Accept()
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "%v\n", err)
+			os.Exit(1)
+		}
+
+		s := bufio.NewScanner(conn)
+		for s.Scan() {
+			txt := s.Text()
+			fmt.Printf("sending: %s\n", txt)
+			_, err := conn.Write([]byte(txt + "\n"))
+			if err != nil {
+				break
+			}
+		}
+		if err := s.Err(); err != nil {
+			fmt.Fprintf(os.Stderr, "%v\n", err)
+			os.Exit(1)
+		}
+
+		fmt.Printf("disconnect: %+v\n", conn)
+	}
+}
diff --git a/cmd/rsend/main.go b/cmd/rsend/main.go
new file mode 100644
index 0000000..225d905
--- /dev/null
+++ b/cmd/rsend/main.go
@@ -0,0 +1,41 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"net"
+	"os"
+
+	"mcquay.me/robo"
+)
+
+const usage = "rsend <hostname>"
+
+func main() {
+	if len(os.Args) != 2 {
+		fmt.Fprintf(os.Stderr, "%s\n", usage)
+		os.Exit(1)
+	}
+
+	conn, err := net.Dial("tcp", fmt.Sprintf("%s:%d", os.Args[1], robo.Port))
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "%v\n", err)
+		os.Exit(1)
+
+	}
+
+	s := bufio.NewScanner(os.Stdin)
+	for s.Scan() {
+		txt := s.Text()
+		fmt.Printf("sending: %s\n", txt)
+		_, err := conn.Write([]byte(txt + "\n"))
+		if err != nil {
+			break
+		}
+	}
+
+	if err := s.Err(); err != nil {
+		fmt.Fprintf(os.Stderr, "%v\n", err)
+		os.Exit(1)
+	}
+}
diff --git a/robo.go b/robo.go
new file mode 100644
index 0000000..058e8f3
--- /dev/null
+++ b/robo.go
@@ -0,0 +1,3 @@
+package robo
+
+const Port = 1337