kldstat.c revision 25540 
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 *	$Id$
27 */
28
29#include <stdio.h>
30#include <unistd.h>
31#include <sys/types.h>
32#include <sys/param.h>
33#include <sys/module.h>
34#include <sys/linker.h>
35
36static char* progname;
37
38static void printmod(int modid)
39{
40    struct module_stat stat;
41
42    stat.version = sizeof(struct module_stat);
43    if (modstat(modid, &stat) < 0)
44	warn(1, "Can't state module");
45    else
46	printf("\t\t%2d %s\n", stat.id, stat.name);
47}
48
49static void printfile(int fileid, int verbose)
50{
51    struct kld_file_stat stat;
52    int modid;
53
54    stat.version = sizeof(struct kld_file_stat);
55    if (kldstat(fileid, &stat) < 0)
56	warn(1, "Can't stat file");
57    else
58	printf("%2d %4d %-8x %-8x %s\n",
59	       stat.id, stat.refs, stat.address, stat.size, stat.name);
60
61    if (verbose) {
62	printf("\tContains modules:\n");
63	printf("\t\tId Name\n");
64	for (modid = kldfirstmod(fileid); modid > 0;
65	     modid = modfnext(modid))
66	    printmod(modid);
67    }
68}
69
70static void
71usage()
72{
73    fprintf(stderr, "usage: %s [-v]\n", progname);
74    exit(1);
75}
76
77int main(int argc, char** argv)
78{
79    int c;
80    int verbose = 0;
81    int fileid = 0;
82    char* filename = 0;
83
84    progname = argv[0];
85    while ((c = getopt(argc, argv, "vi:n:")) != -1)
86	switch (c) {
87	case 'v':
88	    verbose = 1;
89	    break;
90	case 'i':
91	    fileid = atoi(optarg);
92	    break;
93	case 'n':
94	    filename = optarg;
95	    break;
96	default:
97	    usage();
98	}
99    argc -= optind;
100    argv += optind;
101
102    if (argc != 0)
103	usage();
104
105    if (filename) {
106	fileid = kldfind(filename);
107	if (fileid < 0)
108	    err(1, "Can't find file %s", filename);
109    }
110
111    printf("Id Refs Address  Size     Name\n");
112    if (fileid)
113	printfile(fileid, verbose);
114    else
115	for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid))
116	    printfile(fileid, verbose);
117
118    return 0;
119}
120