diff options
Diffstat (limited to 'usr.sbin/chroot/chroot.c')
| -rw-r--r-- | usr.sbin/chroot/chroot.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/usr.sbin/chroot/chroot.c b/usr.sbin/chroot/chroot.c new file mode 100644 index 00000000000..579ce0e1384 --- /dev/null +++ b/usr.sbin/chroot/chroot.c @@ -0,0 +1,73 @@ +/* + * Copyright (c) 1988 The Regents of the University of California. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef lint +char copyright[] = +"@(#) Copyright (c) 1988 The Regents of the University of California.\n\ + All rights reserved.\n"; +#endif /* not lint */ + +#ifndef lint +/*static char sccsid[] = "from: @(#)chroot.c 5.8 (Berkeley) 6/1/90";*/ +static char rcsid[] = "$Id: chroot.c,v 1.1.1.1 1995/10/18 08:47:29 deraadt Exp $"; +#endif /* not lint */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <paths.h> +#include <err.h> + +main(argc, argv) + int argc; + char **argv; +{ + char *shell; + + if (argc < 2) { + (void)fprintf(stderr, "usage: chroot newroot [command]\n"); + exit(1); + } + if (chdir(argv[1]) || chroot(".")) + err(1, "%s", argv[1]); + if (argv[2]) { + execvp(argv[2], &argv[2]); + err(1, "%s", argv[2]); + } else { + if (!(shell = getenv("SHELL"))) + shell = _PATH_BSHELL; + execlp(shell, shell, "-i", (char *)NULL); + err(1, "%s", shell); + } + /* NOTREACHED */ +} |