style: compare return value of getopt() against -1 rather than EOF
[games.git] / usr.sbin / ngctl / list.c
CommitLineData
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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 $
9b0ec895 37 * $DragonFly: src/usr.sbin/ngctl/list.c,v 1.6 2008/07/10 18:29:52 swildner Exp $
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38 */
39
40#include "ngctl.h"
41
937f5bb9 42static int ListCmd(int ac, const char **av);
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43
44const 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
54static int
937f5bb9 55ListCmd(int ac, const char **av)
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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;
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61 int ch, rtn = CMDRTN_OK;
62 uint32_t k;
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63
64 /* Get options */
65 optind = 1;
9b0ec895 66 while ((ch = getopt(ac, __DECONST(char **, av), "n")) != -1) {
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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++) {
ad30b684 103 char path[NG_PATHSIZ];
507bd94d 104 const char *new_av[3] = { "list", "-n", path };
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105
106 snprintf(path, sizeof(path),
107 "[%lx]:", (u_long) nlist->nodeinfo[k].id);
507bd94d 108 if ((rtn = (*show_cmd.func)(3, new_av)) != CMDRTN_OK)
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109 break;
110 }
111
112 /* Done */
113 return (rtn);
114}