1 /* 2 * list.c 3 * 4 * Copyright (c) 1996-1999 Whistle Communications, Inc. 5 * All rights reserved. 6 * 7 * Subject to the following obligations and disclaimer of warranty, use and 8 * redistribution of this software, in source or object code forms, with or 9 * without modifications are expressly permitted by Whistle Communications; 10 * provided, however, that: 11 * 1. Any and all reproductions of the source or object code must include the 12 * copyright notice above and the following disclaimer of warranties; and 13 * 2. No rights are granted, in any manner or form, to use Whistle 14 * Communications, Inc. trademarks, including the mark "WHISTLE 15 * COMMUNICATIONS" on advertising, endorsements, or otherwise except as 16 * such appears in the above copyright notice or in the software. 17 * 18 * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND 19 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO 20 * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, 21 * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF 22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. 23 * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY 24 * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS 25 * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. 26 * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES 27 * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING 28 * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 29 * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR 30 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY 31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 33 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY 34 * OF SUCH DAMAGE. 35 * 36 * $FreeBSD: src/usr.sbin/ngctl/list.c,v 1.2 1999/11/30 02:45:30 archie Exp $ 37 * $DragonFly: src/usr.sbin/ngctl/list.c,v 1.6 2008/07/10 18:29:52 swildner Exp $ 38 */ 39 40 #include "ngctl.h" 41 42 static int ListCmd(int ac, const char **av); 43 44 const struct ngcmd list_cmd = { 45 ListCmd, 46 "list [-n]", 47 "Show information about all nodes", 48 "The list command shows information every node that currently" 49 " exists in the netgraph system. The optional -n argument limits" 50 " this list to only those nodes with a global name assignment.", 51 { "ls" } 52 }; 53 54 static int 55 ListCmd(int ac, const char **av) 56 { 57 u_char rbuf[16 * 1024]; 58 struct ng_mesg *const resp = (struct ng_mesg *) rbuf; 59 struct namelist *const nlist = (struct namelist *) resp->data; 60 int named_only = 0; 61 int ch, rtn = CMDRTN_OK; 62 uint32_t k; 63 64 /* Get options */ 65 optind = 1; 66 while ((ch = getopt(ac, __DECONST(char **, av), "n")) != -1) { 67 switch (ch) { 68 case 'n': 69 named_only = 1; 70 break; 71 case '?': 72 default: 73 return(CMDRTN_USAGE); 74 break; 75 } 76 } 77 ac -= optind; 78 av += optind; 79 80 /* Get arguments */ 81 switch (ac) { 82 case 0: 83 break; 84 default: 85 return(CMDRTN_USAGE); 86 } 87 88 /* Get list of nodes */ 89 if (NgSendMsg(csock, ".", NGM_GENERIC_COOKIE, 90 named_only ? NGM_LISTNAMES : NGM_LISTNODES, NULL, 0) < 0) { 91 warn("send msg"); 92 return(CMDRTN_ERROR); 93 } 94 if (NgRecvMsg(csock, resp, sizeof(rbuf), NULL) < 0) { 95 warn("recv msg"); 96 return(CMDRTN_ERROR); 97 } 98 99 /* Show each node */ 100 printf("There are %d total %snodes:\n", 101 nlist->numnames, named_only ? "named " : ""); 102 for (k = 0; k < nlist->numnames; k++) { 103 char path[NG_PATHSIZ]; 104 const char *new_av[3] = { "list", "-n", path }; 105 106 snprintf(path, sizeof(path), 107 "[%lx]:", (u_long) nlist->nodeinfo[k].id); 108 if ((rtn = (*show_cmd.func)(3, new_av)) != CMDRTN_OK) 109 break; 110 } 111 112 /* Done */ 113 return (rtn); 114 } 115