1 files changed, 53 insertions, 0 deletions
diff --git a/busybox/coreutils/chroot.c b/busybox/coreutils/chroot.c
new file mode 100644
index 0000000..6225702
--- /dev/null
+++ b/busybox/coreutils/chroot.c
@@ -0,0 +1,53 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini chroot implementation for busybox
+ *
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+/* BB_AUDIT SUSv3 N/A -- Matches GNU behavior. */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <errno.h>
+#include "busybox.h"
+
+int chroot_main(int argc, char **argv)
+{
+	if (argc < 2) {
+		bb_show_usage();
+	}
+
+	++argv;
+	if (chroot(*argv) || (chdir("/"))) {
+		bb_perror_msg_and_die("cannot change root directory to %s", *argv);
+	}
+
+	++argv;
+	if (argc == 2) {
+		argv -= 2;
+		if (!(*argv = getenv("SHELL"))) {
+			*argv = (char *) DEFAULT_SHELL;
+		}
+		argv[1] = (char *) "-i";
+	}
+
+	execvp(*argv, argv);
+	bb_perror_msg_and_die("cannot execute %s", *argv);
+}