jls.c revision 149276
197403Sobrien/*- 297403Sobrien * Copyright (c) 2003 Mike Barcroft <mike@FreeBSD.org> 3169691Skan * All rights reserved. 4169691Skan * 597403Sobrien * Redistribution and use in source and binary forms, with or without 697403Sobrien * modification, are permitted provided that the following conditions 797403Sobrien * are met: 897403Sobrien * 1. Redistributions of source code must retain the above copyright 997403Sobrien * notice, this list of conditions and the following disclaimer. 1097403Sobrien * 2. Redistributions in binary form must reproduce the above copyright 1197403Sobrien * notice, this list of conditions and the following disclaimer in the 1297403Sobrien * documentation and/or other materials provided with the distribution. 1397403Sobrien * 1497403Sobrien * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1597403Sobrien * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1697403Sobrien * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1797403Sobrien * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1897403Sobrien * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19169691Skan * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2097403Sobrien * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2197403Sobrien * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2297403Sobrien * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2397403Sobrien * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2497403Sobrien * SUCH DAMAGE. 2597403Sobrien * 2697403Sobrien * $FreeBSD: head/usr.sbin/jls/jls.c 149276 2005-08-19 11:03:49Z pjd $ 2797403Sobrien */ 2897403Sobrien 2997403Sobrien#include <sys/param.h> 3097403Sobrien#include <sys/jail.h> 31169691Skan#include <sys/sysctl.h> 32169691Skan 33169691Skan#include <arpa/inet.h> 34169691Skan#include <err.h> 35169691Skan#include <errno.h> 3697403Sobrien#include <limits.h> 3797403Sobrien#include <stdio.h> 3897403Sobrien#include <stdlib.h> 3997403Sobrien 40169691Skan 4197403Sobrienint 42132720Skanmain(void) 43132720Skan{ 4497403Sobrien struct xprison *sxp, *xp; 4597403Sobrien struct in_addr in; 4697403Sobrien size_t i, len; 47169691Skan 48169691Skan if (sysctlbyname("security.jail.list", NULL, &len, NULL, 0) == -1) 49169691Skan err(1, "sysctlbyname(): security.jail.list"); 5097403Sobrien 5197403Sobrien for (i = 0; i < 4; i++) { 5297403Sobrien if (len <= 0) 5397403Sobrien exit(0); 5497403Sobrien sxp = xp = malloc(len); 5597403Sobrien if (sxp == NULL) 5697403Sobrien err(1, "malloc()"); 5797403Sobrien 5897403Sobrien if (sysctlbyname("security.jail.list", xp, &len, NULL, 0) == -1) { 5997403Sobrien if (errno == ENOMEM) { 6097403Sobrien free(sxp); 6197403Sobrien sxp = NULL; 62132720Skan continue; 63169691Skan } 64132720Skan err(1, "sysctlbyname(): security.jail.list"); 65132720Skan } 66132720Skan break; 67132720Skan } 68132720Skan if (sxp == NULL) 69132720Skan err(1, "sysctlbyname(): security.jail.list"); 70132720Skan if (len < sizeof(*xp) || len % sizeof(*xp) || 7197403Sobrien xp->pr_version != XPRISON_VERSION) 72132720Skan errx(1, "Kernel and userland out of sync"); 7397403Sobrien 7497403Sobrien printf(" JID IP Address Hostname Path\n"); 7597403Sobrien for (i = 0; i < len / sizeof(*xp); i++) { 7697403Sobrien in.s_addr = ntohl(xp->pr_ip); 77103447Skan printf("%6d %-15.15s %-29.29s %.74s\n", 78132720Skan xp->pr_id, inet_ntoa(in), xp->pr_host, xp->pr_path); 79132720Skan xp++; 80132720Skan } 81132720Skan free(sxp); 8297403Sobrien exit(0); 83132720Skan} 84132720Skan