blob: dae26d48fff037e49792317d301e5930cad68dbc (
plain)
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
|
/*
* turn raw (no echo, etc.) on and off.
* ptyfs is gone, so don't even try tcsetattr, etc.
*/
#define _POSIX_SOURCE
#define _RESEARCH_SOURCE
#include <sys/types.h>
#include <unistd.h>
#include <fcntl.h>
#include <libv.h>
static int ctlfd = -1;
/* fd is ignored */
tty_echooff(int fd)
{
if(ctlfd >= 0)
return 0;
ctlfd = open("/dev/consctl", O_WRONLY);
if(ctlfd < 0)
return -1;
write(ctlfd, "rawon", 5);
return 0;
}
tty_echoon(int fd)
{
if(ctlfd >= 0){
write(ctlfd, "rawoff", 6);
close(ctlfd);
ctlfd = -1;
return 0;
}
return -1;
}
|
