readline replacement

cli.go

@@ -47,7 +47,7 @@ func cliHome() {
 // cliPrompt reads a line from stdin
 func cliPrompt() string {
 	cliHome()
-	read, err := readline()
+	read, err := termReadLine()
 	if err != nil {
 		logicQuit("EOF")
 	}

readline.go

-package main
-
-// This file uses cgo. The following comment block contains c code, that
-// is actually in use. Do not add newlines above the import statement!
-// See cgo manual for additional information.
-
-/*
-#cgo LDFLAGS: -lreadline
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <readline/readline.h>
-#include <readline/history.h>
-
-char* readempty() {
-	return readline("");
-}
-*/
-import "C"
-import (
-	"fmt"
-	"unsafe"
-)
-
-func readline() (string, error) {
-	cline := C.readempty()
-	if cline != nil {
-		gline := C.GoString(cline)
-		C.free(unsafe.Pointer(cline))
-		return gline, nil
-	}
-
-	return "", fmt.Errorf("EOF?")
-}

term.go

+package main
+
+import (
+	"golang.org/x/crypto/ssh/terminal"
+	"io"
+	"os"
+)
+
+var (
+	termTerminal *terminal.Terminal
+)
+
+func init() {
+	stdio := struct {
+		io.Reader
+		io.Writer
+	}{
+		os.Stdin,
+		os.Stdout,
+	}
+
+	_, err := terminal.MakeRaw(int(os.Stdin.Fd()))
+	errorCare(err)
+
+	termTerminal = terminal.NewTerminal(stdio, "")
+}
+
+// termReadLine reads a line from stdin
+func termReadLine() (string, error) {
+	return termTerminal.ReadLine()
+}