1 #include "tui.h" 2 3 #include <stdio.h> 4 #include <stdlib.h> 5 #include <termios.h> 6 #include <unistd.h> 7 8 9 /* variable to remember original terminal attributes. */ 10 static struct termios default_attributes; 11 12 void reset_input_mode (void) { 13 tcsetattr(STDIN_FILENO, TCSANOW, &default_attributes); 14 15 /* restore cursor */ 16 printf("\033[?25h"); 17 } 18 19 void set_input_mode (void) { 20 struct termios tattr; 21 22 /* Make sure stdin is a terminal. */ 23 if (!isatty(STDIN_FILENO)) { 24 fprintf (stderr, "Not a terminal.\n"); 25 exit (EXIT_FAILURE); 26 } 27 28 /* Save the terminal attributes so we can restore them later. */ 29 tcgetattr(STDIN_FILENO, &default_attributes); 30 atexit(reset_input_mode); 31 32 /* hide cursor */ 33 printf("\033[?25l"); 34 35 /* Set the terminal modes. */ 36 tcgetattr(STDIN_FILENO, &tattr); 37 tattr.c_lflag &= ~(ICANON|ECHO); /* Clear ICANON and ECHO. */ 38 tattr.c_cc[VMIN] = 1; 39 tattr.c_cc[VTIME] = 0; 40 tcsetattr(STDIN_FILENO, TCSAFLUSH, &tattr); 41 }
