From 13401ba0b982024b62a99388032bbb889dc98b43 Mon Sep 17 00:00:00 2001
From: Stefan Hajnoczi <stefanha@redhat.com>
Date: Thu, 14 Nov 2013 11:54:16 +0100
Subject: osdep: add qemu_set_tty_echo()

Using stdin with readline.c requires disabling echo and line buffering.
Add a portable wrapper to set the terminal attributes under Linux and
Windows.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 util/oslib-posix.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'util/oslib-posix.c')

diff --git a/util/oslib-posix.c b/util/oslib-posix.c
index e00a44c..f5c4016 100644
--- a/util/oslib-posix.c
+++ b/util/oslib-posix.c
@@ -47,6 +47,9 @@ extern int daemon(int, int);
 #  define QEMU_VMALLOC_ALIGN getpagesize()
 #endif
 
+#include <termios.h>
+#include <unistd.h>
+
 #include <glib/gprintf.h>
 
 #include "config-host.h"
@@ -251,3 +254,18 @@ qemu_get_local_state_pathname(const char *relative_pathname)
     return g_strdup_printf("%s/%s", CONFIG_QEMU_LOCALSTATEDIR,
                            relative_pathname);
 }
+
+void qemu_set_tty_echo(int fd, bool echo)
+{
+    struct termios tty;
+
+    tcgetattr(fd, &tty);
+
+    if (echo) {
+        tty.c_lflag |= ECHO | ECHONL | ICANON | IEXTEN;
+    } else {
+        tty.c_lflag &= ~(ECHO | ECHONL | ICANON | IEXTEN);
+    }
+
+    tcsetattr(fd, TCSANOW, &tty);
+}
-- 
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