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author | rgrimes <rgrimes@FreeBSD.org> | 1994-05-26 05:23:31 +0000 |
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committer | rgrimes <rgrimes@FreeBSD.org> | 1994-05-26 05:23:31 +0000 |
commit | 862fdf11a2ede45dec0da01ed575525d79468981 (patch) | |
tree | 7a1c88ccb8006476bd4b4a548a6ad48fbfc33a01 /usr.sbin/chroot/chroot.c | |
parent | 8e1a19ddde0df113b0b26b0ea621afd61dbaf91f (diff) | |
download | FreeBSD-src-862fdf11a2ede45dec0da01ed575525d79468981.zip FreeBSD-src-862fdf11a2ede45dec0da01ed575525d79468981.tar.gz |
BSD 4.4 Lite usr.sbin Sources
Diffstat (limited to 'usr.sbin/chroot/chroot.c')
-rw-r--r-- | usr.sbin/chroot/chroot.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/usr.sbin/chroot/chroot.c b/usr.sbin/chroot/chroot.c new file mode 100644 index 0000000..81bf675 --- /dev/null +++ b/usr.sbin/chroot/chroot.c @@ -0,0 +1,96 @@ +/* + * Copyright (c) 1988, 1993 + * 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 +static char copyright[] = +"@(#) Copyright (c) 1988, 1993\n\ + The Regents of the University of California. All rights reserved.\n"; +#endif /* not lint */ + +#ifndef lint +static char sccsid[] = "@(#)chroot.c 8.1 (Berkeley) 6/9/93"; +#endif /* not lint */ + +#include <sys/types.h> + +#include <err.h> +#include <errno.h> +#include <paths.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +void usage __P((void)); + +int +main(argc, argv) + int argc; + char *argv[]; +{ + int ch; + char *shell; + + while ((ch = getopt(argc, argv, "")) != EOF) + switch(ch) { + case '?': + default: + usage(); + } + argc -= optind; + argv += optind; + + if (argc < 1) + usage(); + + if (chdir(argv[0]) || chroot(".")) + err(1, "%s", argv[0]); + + if (argv[1]) { + execvp(argv[1], &argv[1]); + err(1, "%s", argv[1]); + } + + if (!(shell = getenv("SHELL"))) + shell = _PATH_BSHELL; + execlp(shell, shell, "-i", NULL); + err(1, "%s", shell); + /* NOTREACHED */ +} + +void +usage() +{ + (void)fprintf(stderr, "usage: chroot newroot [command]\n"); + exit(1); +} |