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
|
#include <stdio.h> /*(printf)*/
#include <termios.h> /*ICANON,TCSA...*/
#include <signal.h> /*SIGTERM*/
#include <stdlib.h> /*(atexit)*/
#include <unistd.h> /*(isatty)*/
#include "stty.h" /*(setTty)*/
/* stty -icannon -echo -isig -icrnl -inlcr */
static void
sigint(int i)
{
exit(1);
}
static int pid;
static struct termios oldTermios;
static void
recoverTermios(void)
{
if (getpid() != pid) return; /* SOCKS (at least v4.2) subprocess
calls exit() (why not _exit()??) */
tcsetattr(0, TCSADRAIN, &oldTermios);
printf("\nBye.\n");
}
#ifdef USE_ON_EXIT
#define atexit(f) on_exit((f),0)
#endif
void
setTty(void)
{
struct termios t;
if (!isatty(0)) return;
pid = getpid();
signal(SIGTERM, sigint);
signal(SIGINT, sigint);
tcgetattr(0, &t);
oldTermios = t;
atexit(recoverTermios);
t.c_lflag &= ~ICANON & ~ECHO & ~ISIG;
t.c_iflag &= ~ICRNL & ~INLCR;
t.c_oflag &= ~OCRNL & ~ONLCR;
t.c_cc[VMIN] = 1;
t.c_cc[VTIME] = 0;
tcsetattr(0, TCSADRAIN, &t);
}
|
