blob: 45f2dc7a90c2e3ef11381a17b334ab43229d551b (
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
38
39
40
41
42
43
44
45
46
47
48
49
|
/* See LICENSE file for copyright and license details. */
#include <errno.h>
#include <stdlib.h>
#include <unistd.h>
#include "util.h"
static void
usage(void)
{
eprintf("usage: %s dir [cmd [arg ...]]\n", argv0);
}
int
main(int argc, char *argv[])
{
char *shell[] = { "/bin/sh", "-i", NULL }, *aux, *cmd;
int savederrno;
ARGBEGIN {
default:
usage();
} ARGEND
if (!argc)
usage();
if ((aux = getenv("SHELL")))
shell[0] = aux;
if (chroot(argv[0]) < 0)
eprintf("chroot %s:", argv[0]);
if (chdir("/") < 0)
eprintf("chdir:");
if (argc == 1) {
cmd = *shell;
execvp(cmd, shell);
} else {
cmd = argv[1];
execvp(cmd, argv + 1);
}
savederrno = errno;
weprintf("execvp %s:", cmd);
_exit(126 + (savederrno == ENOENT));
}
|
