kldstat.c revision 61881 
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 61881 2000-06-20 19:04:22Z jmb $";
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
41#if defined(__alpha__)
42#define	POINTER_WIDTH	18
43#else
44#define	POINTER_WIDTH	10
45#endif
46
47static void
48printmod(int modid)
49{
50    struct module_stat stat;
51
52    stat.version = sizeof(struct module_stat);
53    if (modstat(modid, &stat) < 0)
54	warn("can't stat module id %d", modid);
55    else
56	printf("\t\t%2d   %2d 0x%-8x %s\n",
57		stat.id, stat.refs, stat.version, stat.name);
58}
59
60static void printfile(int fileid, int verbose)
61{
62    struct kld_file_stat stat;
63    int modid;
64
65    stat.version = sizeof(struct kld_file_stat);
66    if (kldstat(fileid, &stat) < 0)
67	warn("can't stat file id %d", fileid);
68    else
69	printf("%2d %4d %p %-8x %s\n",
70	       stat.id, stat.refs, stat.address, stat.size, stat.name);
71
72    if (verbose) {
73	printf("\tContains modules:\n");
74	printf("\t\tId Refs Version%*c Name\n", POINTER_WIDTH - 7, ' ');
75	for (modid = kldfirstmod(fileid); modid > 0;
76	     modid = modfnext(modid))
77	    printmod(modid);
78    }
79}
80
81static void
82usage(void)
83{
84    fprintf(stderr, "usage: kldstat [-v] [-i id] [-n name]\n");
85    exit(1);
86}
87
88int
89main(int argc, char** argv)
90{
91    int c;
92    int verbose = 0;
93    int fileid = 0;
94    char* filename = 0;
95
96    while ((c = getopt(argc, argv, "i:n:v")) != -1)
97	switch (c) {
98	case 'i':
99	    fileid = atoi(optarg);
100	    break;
101	case 'n':
102	    filename = optarg;
103	    break;
104	case 'v':
105	    verbose = 1;
106	    break;
107	default:
108	    usage();
109	}
110    argc -= optind;
111    argv += optind;
112
113    if (argc != 0)
114	usage();
115
116    if (filename) {
117	if ((fileid = kldfind(filename)) < 0)
118	    err(1, "can't find file %s", filename);
119    }
120
121    printf("Id Refs Address%*c Size     Name\n", POINTER_WIDTH - 7, ' ');
122    if (fileid)
123	printfile(fileid, verbose);
124    else
125	for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid))
126	    printfile(fileid, verbose);
127
128    return 0;
129}
130