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: src/usr.sbin/jls/jls.c,v 1.3 2003/04/22 13:24:56 mike Exp $ 27 * $DragonFly: src/usr.sbin/jls/jls.c,v 1.2 2006/12/29 18:02:57 victor Exp $ 28 */ 29 30 #include <sys/param.h> 31 #include <sys/sysctl.h> 32 33 #include <err.h> 34 #include <errno.h> 35 #include <limits.h> 36 #include <stdio.h> 37 #include <stdlib.h> 38 #include <string.h> 39 40 #include <netinet/in.h> 41 #include <arpa/inet.h> 42 43 int 44 main(void) 45 { 46 size_t len; 47 char *jls; /* Jail list */ 48 char *curpos; 49 char *nextpos; 50 51 if (sysctlbyname("jail.list", NULL, &len, NULL, 0) == -1) 52 err(1, "sysctlbyname(): jail.list"); 53 retry: 54 if (len == 0) 55 exit(0); 56 57 jls = malloc(len); 58 if (jls == NULL) 59 err(1, "malloc failed"); 60 61 if (sysctlbyname("jail.list", jls, &len, NULL, 0) == -1) { 62 if (errno == ENOMEM) { 63 free(jls); 64 goto retry; 65 } 66 err(1, "sysctlbyname(): jail.list"); 67 } 68 printf("JID\tHostname\tPath\t\tIPs\n"); 69 curpos = jls; 70 while (curpos) { 71 char *str_jid; 72 char *str_host; 73 char *str_path; 74 char *str_ips; 75 76 nextpos = strchr(curpos, '\n'); 77 if (nextpos) 78 *nextpos++ = 0; 79 str_jid = strtok(curpos, " "); 80 str_host = strtok(NULL, " "); 81 str_path = strtok(NULL, " "); 82 str_ips = strtok(NULL, "\n"); 83 84 printf("%-8s%-15s %-15s %s\n", 85 str_jid, 86 str_host, 87 str_path, 88 (str_ips ? str_ips : "(none)")); 89 curpos = nextpos; 90 } 91 free(jls); 92 exit(0); 93 } 94