1 /*- 2 * Copyright (c) 2003 Mike Barcroft <mike@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #include <sys/param.h> 30 #include <sys/jail.h> 31 #include <sys/sysctl.h> 32 33 #include <arpa/inet.h> 34 #include <err.h> 35 #include <errno.h> 36 #include <limits.h> 37 #include <stdio.h> 38 #include <stdlib.h> 39 40 41 int 42 main(void) 43 { 44 struct xprison *sxp, *xp; 45 struct in_addr in; 46 size_t i, len; 47 48 if (sysctlbyname("security.jail.list", NULL, &len, NULL, 0) == -1) 49 err(1, "sysctlbyname(): security.jail.list"); 50 51 for (i = 0; i < 4; i++) { 52 if (len <= 0) 53 exit(0); 54 sxp = xp = malloc(len); 55 if (sxp == NULL) 56 err(1, "malloc()"); 57 58 if (sysctlbyname("security.jail.list", xp, &len, NULL, 0) == -1) { 59 if (errno == ENOMEM) { 60 free(sxp); 61 sxp = NULL; 62 continue; 63 } 64 err(1, "sysctlbyname(): security.jail.list"); 65 } 66 break; 67 } 68 if (sxp == NULL) 69 err(1, "sysctlbyname(): security.jail.list"); 70 if (len < sizeof(*xp) || len % sizeof(*xp) || 71 xp->pr_version != XPRISON_VERSION) 72 errx(1, "Kernel and userland out of sync"); 73 74 printf(" JID IP Address Hostname Path\n"); 75 for (i = 0; i < len / sizeof(*xp); i++) { 76 in.s_addr = ntohl(xp->pr_ip); 77 printf("%6d %-15.15s %-29.29s %.74s\n", 78 xp->pr_id, inet_ntoa(in), xp->pr_host, xp->pr_path); 79 xp++; 80 } 81 free(sxp); 82 exit(0); 83 } 84