freebsd-src/usr.sbin/jail/jail.c
Poul-Henning Kamp c020621f03 Various cosmetics.
Submitted by:	Rudolf Cejka <cejkar@dcse.fee.vutbr.cz>
Reviewed by:	phk
1999-05-05 19:23:45 +00:00

46 lines
1.1 KiB
C

/*
* ----------------------------------------------------------------------------
* "THE BEER-WARE LICENSE" (Revision 42):
* <phk@FreeBSD.ORG> wrote this file. As long as you retain this notice you
* can do whatever you want with this stuff. If we meet some day, and you think
* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
* ----------------------------------------------------------------------------
*
* $Id: jail.c,v 1.2 1999/05/04 18:20:53 phk Exp $
*
*/
#include <stdio.h>
#include <err.h>
#include <sys/types.h>
#include <sys/jail.h>
#include <netinet/in.h>
int
main(int argc, char **argv)
{
struct jail j;
int i;
struct in_addr in;
if (argc < 5)
errx(1, "Usage: %s path hostname ip-number command ...\n",
argv[0]);
i = chdir(argv[1]);
if (i)
err(1, "chdir %s", argv[1]);
j.path = argv[1];
j.hostname = argv[2];
i = inet_aton(argv[3], &in);
if (!i)
errx(1, "Couldn't make sense of ip-number\n");
j.ip_number = ntohl(in.s_addr);
i = jail(&j);
if (i)
err(1, "Imprisonment failed");
i = execv(argv[4], argv + 4);
if (i)
err(1, "execv(%s)", argv[4]);
exit (0);
}