Contents of /trunk/mkinitrd-magellan/busybox/coreutils/chroot.c
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Sat Sep 1 22:45:15 2007 UTC (16 years, 9 months ago) by niro
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Sat Sep 1 22:45:15 2007 UTC (16 years, 9 months ago) by niro
File MIME type: text/plain
File size: 724 byte(s)
-import if magellan mkinitrd; it is a fork of redhats mkinitrd-5.0.8 with all magellan patches and features; deprecates magellan-src/mkinitrd
1 | /* vi: set sw=4 ts=4: */ |
2 | /* |
3 | * Mini chroot implementation for busybox |
4 | * |
5 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> |
6 | * |
7 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. |
8 | */ |
9 | |
10 | /* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */ |
11 | |
12 | #include "busybox.h" |
13 | |
14 | int chroot_main(int argc, char **argv) |
15 | { |
16 | if (argc < 2) { |
17 | bb_show_usage(); |
18 | } |
19 | |
20 | ++argv; |
21 | if (chroot(*argv)) { |
22 | bb_perror_msg_and_die("cannot change root directory to %s", *argv); |
23 | } |
24 | xchdir("/"); |
25 | |
26 | ++argv; |
27 | if (argc == 2) { |
28 | argv -= 2; |
29 | if (!(*argv = getenv("SHELL"))) { |
30 | *argv = (char *) DEFAULT_SHELL; |
31 | } |
32 | argv[1] = (char *) "-i"; |
33 | } |
34 | |
35 | execvp(*argv, argv); |
36 | bb_perror_msg_and_die("cannot execute %s", *argv); |
37 | } |