kldstat.c revision 50476 
1/*-
2 * Copyright (c) 1997 Doug Rabson
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
27#ifndef lint
28static const char rcsid[] =
29  "$FreeBSD: head/sbin/kldstat/kldstat.c 50476 1999-08-28 00:22:10Z peter $";
30#endif /* not lint */
31
32#include <err.h>
33#include <stdio.h>
34#include <stdlib.h>
35#include <unistd.h>
36#include <sys/types.h>
37#include <sys/param.h>
38#include <sys/module.h>
39#include <sys/linker.h>
40
41static void
42printmod(int modid)
43{
44    struct module_stat stat;
45
46    stat.version = sizeof(struct module_stat);
47    if (modstat(modid, &stat) < 0)
48	warn("can't stat module id %d", modid);
49    else
50	printf("\t\t%2d %s\n", stat.id, stat.name);
51}
52
53static void printfile(int fileid, int verbose)
54{
55    struct kld_file_stat stat;
56    int modid;
57
58    stat.version = sizeof(struct kld_file_stat);
59    if (kldstat(fileid, &stat) < 0)
60	warn("can't stat file id %d", fileid);
61    else
62	printf("%2d %4d %p %-8x %s\n",
63	       stat.id, stat.refs, stat.address, stat.size, stat.name);
64
65    if (verbose) {
66	printf("\tContains modules:\n");
67	printf("\t\tId Name\n");
68	for (modid = kldfirstmod(fileid); modid > 0;
69	     modid = modfnext(modid))
70	    printmod(modid);
71    }
72}
73
74static void
75usage(void)
76{
77    fprintf(stderr, "usage: kldstat [-v] [-i id] [-n name]\n");
78    exit(1);
79}
80
81int
82main(int argc, char** argv)
83{
84    int c;
85    int verbose = 0;
86    int fileid = 0;
87    char* filename = 0;
88
89    while ((c = getopt(argc, argv, "i:n:v")) != -1)
90	switch (c) {
91	case 'i':
92	    fileid = atoi(optarg);
93	    break;
94	case 'n':
95	    filename = optarg;
96	    break;
97	case 'v':
98	    verbose = 1;
99	    break;
100	default:
101	    usage();
102	}
103    argc -= optind;
104    argv += optind;
105
106    if (argc != 0)
107	usage();
108
109    if (filename) {
110	if ((fileid = kldfind(filename)) < 0)
111	    err(1, "can't find file %s", filename);
112    }
113
114    printf("Id Refs Address    Size     Name\n");
115    if (fileid)
116	printfile(fileid, verbose);
117    else
118	for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid))
119	    printfile(fileid, verbose);
120
121    return 0;
122}
123