From 50bee2f8114ce562d63b08665f7371aa5a568b2c Mon Sep 17 00:00:00 2001
From: "Guillaume J. Charmes" <guillaume.charmes@dotcloud.com>
Date: Mon, 25 Mar 2013 18:43:25 -0700
Subject: [PATCH] Fix termcaps on the linux client

---
 container.go          |  3 +++
 term/termios_linux.go | 62 ++++++++++++++++++++++++++++++++-----------
 2 files changed, 49 insertions(+), 16 deletions(-)

diff --git a/container.go b/container.go
index 7e7077c123..7693f85a98 100644
--- a/container.go
+++ b/container.go
@@ -255,6 +255,9 @@ func (container *Container) Start() error {
 
 	var err error
 	if container.Config.Tty {
+		container.cmd.Env = append(container.Config.Env,
+			"TERM="+os.Getenv("TERM"),
+		)
 		err = container.startPty()
 	} else {
 		err = container.start()
diff --git a/term/termios_linux.go b/term/termios_linux.go
index 933ef84c4d..f018a58e63 100644
--- a/term/termios_linux.go
+++ b/term/termios_linux.go
@@ -1,10 +1,31 @@
 package term
 
 import (
-    "syscall"
-    "unsafe"
+	"os"
+	"syscall"
+	"unsafe"
 )
 
+// #include <termios.h>
+// #include <sys/ioctl.h>
+/*
+void MakeRaw() {
+  struct termios t;
+
+  // FIXME: Handle errors?
+  ioctl(0, TCGETS, &t);
+
+  t.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON);
+  t.c_oflag &= ~OPOST;
+  t.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
+  t.c_cflag &= ~(CSIZE | PARENB);
+  t.c_cflag |= CS8;
+
+  ioctl(0, TCSETS, &t);
+}
+*/
+import "C"
+
 const (
 	getTermios = syscall.TCGETS
 	setTermios = syscall.TCSETS
@@ -14,19 +35,28 @@ const (
 // mode and returns the previous state of the terminal so that it can be
 // restored.
 func MakeRaw(fd int) (*State, error) {
-    var oldState State
-    if _, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(fd), uintptr(getTermios), uintptr(unsafe.Pointer(&oldState.termios)), 0, 0, 0); err != 0 {
-        return nil, err
-    }
 
-    newState := oldState.termios
-    newState.Iflag &^= ISTRIP | IXON | IXOFF
-    newState.Iflag |= ICRNL
-    newState.Oflag |= ONLCR
-    newState.Lflag &^= ECHO | ICANON | ISIG
-    if _, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(fd), uintptr(setTermios), uintptr(unsafe.Pointer(&newState)), 0, 0, 0); err != 0 {
-        return nil, err
-    }
+	fd = int(os.Stdin.Fd())
 
-    return &oldState, nil
-}
\ No newline at end of file
+	var oldState State
+	if _, _, err := syscall.Syscall6(syscall.SYS_IOCTL, uintptr(fd), syscall.TCGETS, uintptr(unsafe.Pointer(&oldState.termios)), 0, 0, 0); err != 0 {
+		return nil, err
+	}
+	C.MakeRaw()
+	return &oldState, nil
+
+	// FIXME: post on goland issues this: very same as the C function bug non-working
+
+	// newState := oldState.termios
+
+	// newState.Iflag &^= (IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON)
+	// newState.Oflag &^= OPOST
+	// newState.Lflag &^= (ECHO | syscall.ECHONL | ICANON | ISIG | IEXTEN)
+	// newState.Cflag &^= (CSIZE | syscall.PARENB)
+	// newState.Cflag |= CS8
+
+	// if _, _, err := syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), syscall.TCSETS, uintptr(unsafe.Pointer(&newState))); err != 0 {
+	// 	return nil, err
+	// }
+	// return &oldState, nil
+}