Contents of /tags/mkinitrd-6_3_1/busybox/coreutils/chroot.c
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Thu Aug 19 12:44:27 2010 UTC (14 years, 1 month ago) by niro
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Thu Aug 19 12:44:27 2010 UTC (14 years, 1 month ago) by niro
File MIME type: text/plain
File size: 711 byte(s)
tagged 'mkinitrd-6_3_1'
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 "libbb.h" |
13 | |
14 | int chroot_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
15 | int chroot_main(int argc UNUSED_PARAM, char **argv) |
16 | { |
17 | ++argv; |
18 | if (!*argv) |
19 | bb_show_usage(); |
20 | xchroot(*argv); |
21 | xchdir("/"); |
22 | |
23 | ++argv; |
24 | if (!*argv) { /* no 2nd param (PROG), use shell */ |
25 | argv -= 2; |
26 | argv[0] = getenv("SHELL"); |
27 | if (!argv[0]) { |
28 | argv[0] = (char *) DEFAULT_SHELL; |
29 | } |
30 | argv[1] = (char *) "-i"; |
31 | } |
32 | |
33 | BB_EXECVP_or_die(argv); |
34 | } |