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