From 3b104903087460158fd79c9cae27ada2d4dc103e Mon Sep 17 00:00:00 2001
From: Franklin Wei <frankhwei536@gmail.com>
Date: Mon, 14 Jul 2014 22:31:04 -0400
Subject: Added some features to telnet server

---
 util.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'util.c')

diff --git a/util.c b/util.c
index 9539b46..c27981a 100644
--- a/util.c
+++ b/util.c
@@ -69,6 +69,7 @@ void refresh(void)
 }
 int getnstr(char* buf, int max)
 {
+  echo_on();
   memset(buf, 0, max);
   int ret=read(pipes[out_fd][0], buf, max);
   if(ret!=0)
@@ -81,4 +82,17 @@ int getnstr(char* buf, int max)
   if(ret<0)
     return ERR;
   return OK;
+  echo_off();
+}
+void echo_off(void)
+{
+  unsigned char echo_off[]={0xff, 254, 1};
+  write(out_fd, echo_off, 3);
+  fsync(out_fd);
+}
+void echo_on(void)
+{
+  unsigned char echo_on[]={0xff, 253, 1};
+  write(out_fd, echo_on, 3);
+  fsync(out_fd);
 }
-- 
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