1 2 /* 3 * list.c 4 * 5 * Copyright (c) 1996-1999 Whistle Communications, Inc. 6 * All rights reserved. 7 * 8 * Subject to the following obligations and disclaimer of warranty, use and 9 * redistribution of this software, in source or object code forms, with or 10 * without modifications are expressly permitted by Whistle Communications; 11 * provided, however, that: 12 * 1. Any and all reproductions of the source or object code must include the 13 * copyright notice above and the following disclaimer of warranties; and 14 * 2. No rights are granted, in any manner or form, to use Whistle 15 * Communications, Inc. trademarks, including the mark "WHISTLE 16 * COMMUNICATIONS" on advertising, endorsements, or otherwise except as 17 * such appears in the above copyright notice or in the software. 18 * 19 * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND 20 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO 21 * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, 22 * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF 23 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. 24 * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY 25 * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS 26 * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. 27 * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES 28 * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING 29 * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 30 * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR 31 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY 32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 34 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY 35 * OF SUCH DAMAGE. 36 * 37 * $FreeBSD$ 38 */ 39 40 #include "ngctl.h" 41 42 #define UNNAMED "<unnamed>" 43 44 static int ListCmd(int ac, char **av); 45 46 const struct ngcmd list_cmd = { 47 ListCmd, 48 "list [-ln]", 49 "Show information about all nodes", 50 "The list command shows information about every node that currently" 51 " exists in the netgraph system. The optional -n argument limits" 52 " this list to only those nodes with a global name assignment." 53 " The optional -l argument provides verbose output that includes" 54 " hook information as well.", 55 { "ls" } 56 }; 57 58 static int 59 ListCmd(int ac, char **av) 60 { 61 struct ng_mesg *resp; 62 struct namelist *nlist; 63 struct nodeinfo *ninfo; 64 int list_hooks = 0; 65 int named_only = 0; 66 int ch, rtn = CMDRTN_OK; 67 68 /* Get options */ 69 optind = 1; 70 while ((ch = getopt(ac, av, "ln")) != EOF) { 71 switch (ch) { 72 case 'l': 73 list_hooks = 1; 74 break; 75 case 'n': 76 named_only = 1; 77 break; 78 case '?': 79 default: 80 return(CMDRTN_USAGE); 81 break; 82 } 83 } 84 ac -= optind; 85 av += optind; 86 87 /* Get arguments */ 88 switch (ac) { 89 case 0: 90 break; 91 default: 92 return(CMDRTN_USAGE); 93 } 94 95 /* Get list of nodes */ 96 if (NgSendMsg(csock, ".", NGM_GENERIC_COOKIE, 97 named_only ? NGM_LISTNAMES : NGM_LISTNODES, NULL, 0) < 0) { 98 warn("send msg"); 99 return(CMDRTN_ERROR); 100 } 101 if (NgAllocRecvMsg(csock, &resp, NULL) < 0) { 102 warn("recv msg"); 103 return(CMDRTN_ERROR); 104 } 105 106 /* Show each node */ 107 nlist = (struct namelist *) resp->data; 108 printf("There are %d total %snodes:\n", 109 nlist->numnames, named_only ? "named " : ""); 110 ninfo = nlist->nodeinfo; 111 if (list_hooks) { 112 char path[NG_PATHSIZ]; 113 char *argv[2] = { "show", path }; 114 115 while (nlist->numnames > 0) { 116 snprintf(path, sizeof(path), 117 "[%lx]:", (u_long)ninfo->id); 118 if ((rtn = (*show_cmd.func)(2, argv)) != CMDRTN_OK) 119 break; 120 ninfo++; 121 nlist->numnames--; 122 } 123 } else { 124 while (nlist->numnames > 0) { 125 if (!*ninfo->name) 126 snprintf(ninfo->name, sizeof(ninfo->name), 127 "%s", UNNAMED); 128 printf(" Name: %-15s Type: %-15s ID: %08x " 129 "Num hooks: %d\n", 130 ninfo->name, ninfo->type, ninfo->id, ninfo->hooks); 131 ninfo++; 132 nlist->numnames--; 133 } 134 } 135 136 /* Done */ 137 free(resp); 138 return (rtn); 139 } 140 141