diff options
Diffstat (limited to 'usr.sbin/jexec/jexec.c')
-rw-r--r-- | usr.sbin/jexec/jexec.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/usr.sbin/jexec/jexec.c b/usr.sbin/jexec/jexec.c new file mode 100644 index 0000000..90f117e --- /dev/null +++ b/usr.sbin/jexec/jexec.c @@ -0,0 +1,62 @@ +/*- + * Copyright (c) 2003 Mike Barcroft <mike@FreeBSD.org> + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. + * + * $FreeBSD$ + */ + +#include <sys/param.h> +#include <sys/jail.h> + +#include <err.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +static void usage(void); + +int +main(int argc, char *argv[]) +{ + int jid; + + if (argc < 3) + usage(); + jid = (int)strtol(argv[1], NULL, 10); + if (jail_attach(jid) == -1) + err(1, "jail_attach(): %d", jid); + if (chdir("/") == -1) + err(1, "chdir(): /"); + if (execv(argv[2], argv + 2) == -1) + err(1, "execv(): %s", argv[2]); + exit(0); +} + +static void +usage(void) +{ + + fprintf(stderr, "usage: jexec jid command [...]\n"); + exit(1); +} |