rpty at least working

pty.go

@@ -0,0 +1,71 @@
+package hodu
+
+import "encoding/json"
+import "fmt"
+import "os"
+import "os/exec"
+import "os/user"
+import "strconv"
+import "syscall"
+
+import pts "github.com/creack/pty"
+import "golang.org/x/net/websocket"
+import "golang.org/x/sys/unix"
+
+func connect_pty(pty_shell string, pty_user string) (*exec.Cmd, *os.File, error) {
+	var cmd *exec.Cmd
+	var tty *os.File
+	var err error
+
+	if pty_shell == "" {
+		return nil, nil, fmt.Errorf("blank pty shell")
+	}
+
+	cmd = exec.Command(pty_shell);
+	if pty_user != "" {
+		var uid int
+		var gid int
+		var u *user.User
+
+		u, err = user.Lookup(pty_user)
+		if err != nil { return nil, nil, err }
+
+		uid, _ = strconv.Atoi(u.Uid)
+		gid, _ = strconv.Atoi(u.Gid)
+		cmd.SysProcAttr = &syscall.SysProcAttr{
+			Credential: &syscall.Credential{
+				Uid: uint32(uid),
+				Gid: uint32(gid),
+			},
+			Setsid:  true,
+		}
+		cmd.Dir = u.HomeDir
+		cmd.Env = append(cmd.Env,
+			"HOME=" + u.HomeDir,
+			"LOGNAME=" + u.Username,
+			"PATH=" + os.Getenv("PATH"),
+			"SHELL=" + pty_shell,
+			"TERM=xterm",
+			"USER=" + u.Username,
+		)
+	}
+
+	tty, err = pts.Start(cmd)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	//syscall.SetNonblock(int(tty.Fd()), true);
+	unix.SetNonblock(int(tty.Fd()), true);
+
+	return cmd, tty, nil
+}
+
+func send_ws_data_for_xterm(ws *websocket.Conn, type_val string, data string) error {
+	var msg []byte
+	var err error
+	msg, err = json.Marshal(json_xterm_ws_event{Type: type_val, Data: []string{ data } })
+	if err == nil { err = websocket.Message.Send(ws, msg) }
+	return err
+}
+