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1 /*- |
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2 * Copyright (c) 2003 Mike Barcroft <mike@FreeBSD.org> |
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3 * All rights reserved. |
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4 * |
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5 * Redistribution and use in source and binary forms, with or without |
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6 * modification, are permitted provided that the following conditions |
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7 * are met: |
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8 * 1. Redistributions of source code must retain the above copyright |
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9 * notice, this list of conditions and the following disclaimer. |
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10 * 2. Redistributions in binary form must reproduce the above copyright |
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11 * notice, this list of conditions and the following disclaimer in the |
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12 * documentation and/or other materials provided with the distribution. |
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13 * |
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14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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24 * SUCH DAMAGE. |
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25 * |
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26 * $FreeBSD: src/usr.sbin/jls/jls.c,v 1.3 2003/04/22 13:24:56 mike Exp $ |
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27 * $DragonFly: src/usr.sbin/jls/jls.c,v 1.1 2005/01/31 22:29:59 joerg Exp $ |
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28 */ |
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29 |
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30 #include <sys/param.h> |
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31 #include <sys/kinfo.h> |
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32 #include <sys/sysctl.h> |
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33 |
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34 #include <err.h> |
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35 #include <errno.h> |
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36 #include <limits.h> |
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37 #include <stdio.h> |
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38 #include <stdlib.h> |
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39 |
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40 #include <netinet/in.h> |
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41 #include <arpa/inet.h> |
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42 |
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43 int |
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44 main(void) |
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45 { |
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46 struct kinfo_prison *sxp, *xp; |
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47 struct in_addr in; |
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48 size_t i, len; |
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49 |
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50 if (sysctlbyname("jail.list", NULL, &len, NULL, 0) == -1) |
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51 err(1, "sysctlbyname(): jail.list"); |
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52 retry: |
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53 if (len == 0) |
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54 exit(0); |
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55 |
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56 sxp = xp = malloc(len); |
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57 if (sxp == NULL) |
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58 err(1, "malloc failed"); |
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59 |
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60 if (sysctlbyname("jail.list", xp, &len, NULL, 0) == -1) { |
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61 if (errno == ENOMEM) { |
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62 free(sxp); |
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63 goto retry; |
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64 } |
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65 err(1, "sysctlbyname(): jail.list"); |
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66 } |
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67 if (len < sizeof(*xp) || len % sizeof(*xp) || |
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68 xp->pr_version != KINFO_PRISON_VERSION) |
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69 errx(1, "Kernel and userland out of sync"); |
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70 |
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71 len /= sizeof(*xp); |
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72 printf(" JID IP Address Hostname Path\n"); |
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73 for (i = 0; i < len; i++) { |
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74 in.s_addr = ntohl(xp->pr_ip); |
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75 printf("%6d %-15.15s %-29.29s %.74s\n", |
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76 xp->pr_id, inet_ntoa(in), xp->pr_host, xp->pr_path); |
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77 xp++; |
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78 } |
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79 free(sxp); |
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80 exit(0); |
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81 } |
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82 |