/usr/share/doc/libslang2-dev/examples/keypad.c is in libslang2-dev 2.2.4-3ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 46 47 48 49 50 51 | /* This routine illustrates the keypad interface. To implement
* detection of a single escape character, allow for timeout.
*/
#include <stdio.h>
#include <slang.h>
#include "demolib.c"
#define TIMEOUT 2 /* 2/10 of a second */
static int getch (void)
{
int ch;
while (0 == SLang_input_pending (1000))
continue;
ch = SLang_getkey ();
if (ch == 033) /* escape */
{
if (0 == SLang_input_pending (TIMEOUT))
return 033;
}
SLang_ungetkey (ch);
return SLkp_getkey ();
}
int main (int argc, char **argv)
{
int ch;
(void) argc; (void) argv;
if (-1 == demolib_init_terminal (1, 0))
return 1;
fprintf (stderr, "This program illustrates the slkeypad facility.\n");
fprintf (stderr, "Press any key ('q' quits).\n");
while ('q' != (ch = getch ()))
{
fprintf (stderr, "Keysym: %d\r\n", ch);
}
demolib_exit (0);
return 0;
}
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