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40 lines
802 B
C
40 lines
802 B
C
/* vi: set sw=4 ts=4: */
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/*
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* Mini chroot implementation for busybox
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*
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* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*/
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/* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */
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#include "libbb.h"
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int chroot_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int chroot_main(int argc, char **argv)
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{
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if (argc < 2) {
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bb_show_usage();
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}
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++argv;
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if (chroot(*argv)) {
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bb_perror_msg_and_die("cannot change root directory to %s", *argv);
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}
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xchdir("/");
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++argv;
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if (argc == 2) {
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argv -= 2;
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argv[0] = getenv("SHELL");
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if (!argv[0]) {
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argv[0] = (char *) DEFAULT_SHELL;
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}
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argv[1] = (char *) "-i";
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}
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BB_EXECVP(*argv, argv);
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bb_perror_msg_and_die("cannot execute %s", *argv);
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}
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