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- #include <unistd.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <termios.h>
-
- /* Use this variable to remember original terminal attributes. */
-
- struct termios saved_attributes;
-
- void
- reset_input_mode (void)
- {
- tcsetattr (STDIN_FILENO, TCSANOW, &saved_attributes);
- }
-
- void
- set_input_mode (void)
- {
- struct termios tattr;
- char *name;
-
- /* Make sure stdin is a terminal. */
- if (!isatty (STDIN_FILENO))
- {
- fprintf (stderr, "Not a terminal.\n");
- exit (EXIT_FAILURE);
- }
-
- /* Save the terminal attributes so we can restore them later. */
- tcgetattr (STDIN_FILENO, &saved_attributes);
- atexit (reset_input_mode);
-
- /*@group*/
- /* Set the funny terminal modes. */
- tcgetattr (STDIN_FILENO, &tattr);
- tattr.c_lflag &= ~(ICANON|ECHO); /* Clear ICANON and ECHO. */
- tattr.c_cc[VMIN] = 1;
- tattr.c_cc[VTIME] = 0;
- tcsetattr (STDIN_FILENO, TCSAFLUSH, &tattr);
- }
- /*@end group*/
-
- int
- main (void)
- {
- char c;
-
- set_input_mode ();
-
- while (1)
- {
- read (STDIN_FILENO, &c, 1);
- if (c == '\004') /* @kbd{C-d} */
- break;
- else
- putchar (c);
- }
-
- return EXIT_SUCCESS;
- }
-