From 8b52a31ed2c299b759f330c4f976b9c70f5765f4 Mon Sep 17 00:00:00 2001
From: Hanoh Haim <hhaim@cisco.com>
Date: Wed, 24 Jun 2015 14:03:29 +0300
Subject: first version

---
 src/utl_term_io.cpp | 98 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100755 src/utl_term_io.cpp

(limited to 'src/utl_term_io.cpp')

diff --git a/src/utl_term_io.cpp b/src/utl_term_io.cpp
new file mode 100755
index 00000000..8e561188
--- /dev/null
+++ b/src/utl_term_io.cpp
@@ -0,0 +1,98 @@
+/*
+ Hanoh Haim
+ Cisco Systems, Inc.
+*/
+
+/*
+Copyright (c) 2015-2015 Cisco Systems, Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+#include "utl_term_io.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/select.h>
+#include <termios.h>
+#include <inttypes.h>
+#include <fcntl.h>
+
+static  struct termios oldterm;
+struct termios orig_termios;
+
+static void exit_handler1(void){
+    tcsetattr(fileno(stdin), TCSANOW, &oldterm);
+}
+
+static void save_termio(void){
+    tcgetattr(0, &oldterm);
+}
+
+
+void reset_terminal_mode(void){
+    tcsetattr(0, TCSANOW, &orig_termios);
+}
+
+static void set_conio_terminal_mode(void){
+
+    struct termios oldterm, term;
+
+    tcgetattr(0, &oldterm);
+    memcpy(&term, &oldterm, sizeof(term));
+    term.c_lflag &= ~(ICANON | ECHO | ISIG);
+    tcsetattr(0, TCSANOW, &term);
+    setbuf(stdin, NULL);
+}
+
+static int kbhit(void) {
+    struct timeval tv = { 0L, 0L };
+    fd_set fds;
+    FD_ZERO(&fds);
+    FD_SET(0, &fds);
+    return select(1, &fds, NULL, NULL, &tv);
+}
+
+static int getch(void){
+    int r;
+    unsigned char c;
+    if ((r = read(0, &c, sizeof(c))) < 0) {
+        return r;
+    } else {
+        return c;
+    }
+}
+
+
+int utl_termio_init(){
+    atexit(exit_handler1);
+    save_termio();
+    set_conio_terminal_mode();
+    return (0);
+}
+
+
+int utl_termio_try_getch(void){
+    if ( kbhit() ){
+        return (getch());
+    }else{
+        return (0);
+    }
+}
+
+int utl_termio_reset(void){
+    tcsetattr(fileno(stdin), TCSANOW, &oldterm);
+    return (0);
+}
+
+
-- 
cgit 1.2.3-korg