|  | /* This testcase is part of GDB, the GNU debugger. | 
|  |  | 
|  | Copyright 2012-2023 Free Software Foundation, Inc. | 
|  |  | 
|  | This program is free software; you can redistribute it and/or modify | 
|  | it under the terms of the GNU General Public License as published by | 
|  | the Free Software Foundation; either version 3 of the License, or | 
|  | (at your option) any later version. | 
|  |  | 
|  | This program is distributed in the hope that it will be useful, | 
|  | but WITHOUT ANY WARRANTY; without even the implied warranty of | 
|  | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
|  | GNU General Public License for more details. | 
|  |  | 
|  | You should have received a copy of the GNU General Public License | 
|  | along with this program.  If not, see <http://www.gnu.org/licenses/>.  */ | 
|  |  | 
|  | #include <termios.h> | 
|  | #include <unistd.h> | 
|  |  | 
|  | static struct termios t; | 
|  |  | 
|  | static void | 
|  | break_here () | 
|  | { | 
|  | } | 
|  |  | 
|  | int main () | 
|  | { | 
|  | tcgetattr (0, &t); | 
|  | break_here (); | 
|  |  | 
|  | /* Disable ECHO.  */ | 
|  | t.c_lflag &= ~ECHO; | 
|  | tcsetattr (0, TCSANOW, &t); | 
|  | tcgetattr (0, &t); | 
|  | break_here (); | 
|  |  | 
|  | tcgetattr (0, &t); | 
|  | break_here (); | 
|  |  | 
|  | return 0; | 
|  | } |