1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
/*
Enter a single char without \n on systems supporting termios.
If things fail, fall back to `enterch()'
*/
#include <termios.h>
#include "builtin.ih"
int termch(void)
{
struct termios saved;
struct termios tattr;
int key;
if (tcgetattr(STDIN_FILENO, &saved))
{
fprintf(stderr, "Single key input failed. Press `Enter' as well\n");
return enterch();
}
tcgetattr(STDIN_FILENO, &tattr); /* can't assign saved to tattr */
tattr.c_lflag &= ~(ICANON | ECHO);
tattr.c_cc[VMIN] = 1;
tattr.c_cc[VTIME] = 0;
if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &tattr))
{
fprintf(stderr, "Single key input failed. Press `Enter' as well\n");
return enterch();
}
key = getchar();
printf("%c\n", key);
tcsetattr(STDIN_FILENO, TCSANOW, &saved);
return key;
}
|
