kldstat.c revision 127004 
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#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/sbin/kldstat/kldstat.c 127004 2004-03-15 03:41:07Z jmallett $");
29
30#include <err.h>
31#include <stdint.h>
32#include <stdio.h>
33#include <stdlib.h>
34#include <unistd.h>
35#include <sys/types.h>
36#include <sys/param.h>
37#include <sys/module.h>
38#include <sys/linker.h>
39
40#if defined(__alpha__)
41#define	POINTER_WIDTH	18
42#else
43#define	POINTER_WIDTH	10
44#endif
45
46static void
47printmod(int modid)
48{
49    struct module_stat stat;
50
51    stat.version = sizeof(struct module_stat);
52    if (modstat(modid, &stat) < 0)
53	warn("can't stat module id %d", modid);
54    else
55	printf("\t\t%2d %s\n", stat.id, stat.name);
56}
57
58static void printfile(int fileid, int verbose)
59{
60    struct kld_file_stat stat;
61    int modid;
62
63    stat.version = sizeof(struct kld_file_stat);
64    if (kldstat(fileid, &stat) < 0)
65	warn("can't stat file id %d", fileid);
66    else
67	printf("%2d %4d %p %-8jx %s\n",
68	       stat.id, stat.refs, stat.address, (uintmax_t)stat.size,
69	       stat.name);
70
71    if (verbose) {
72	printf("\tContains modules:\n");
73	printf("\t\tId Name\n");
74	for (modid = kldfirstmod(fileid); modid > 0;
75	     modid = modfnext(modid))
76	    printmod(modid);
77    }
78}
79
80static void
81usage(void)
82{
83    fprintf(stderr, "usage: kldstat [-v] [-i id] [-n name]\n");
84    exit(1);
85}
86
87int
88main(int argc, char** argv)
89{
90    int c;
91    int verbose = 0;
92    int fileid = 0;
93    char* filename = NULL;
94    char* p;
95
96    while ((c = getopt(argc, argv, "i:n:v")) != -1)
97	switch (c) {
98	case 'i':
99	    fileid = (int)strtoul(optarg, &p, 10);
100	    if (*p != '\0')
101		usage();
102	    break;
103	case 'n':
104	    filename = optarg;
105	    break;
106	case 'v':
107	    verbose = 1;
108	    break;
109	default:
110	    usage();
111	}
112    argc -= optind;
113    argv += optind;
114
115    if (argc != 0)
116	usage();
117
118    if (filename != NULL) {
119	if ((fileid = kldfind(filename)) < 0)
120	    err(1, "can't find file %s", filename);
121    }
122
123    printf("Id Refs Address%*c Size     Name\n", POINTER_WIDTH - 7, ' ');
124    if (fileid != 0)
125	printfile(fileid, verbose);
126    else
127	for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid))
128	    printfile(fileid, verbose);
129
130    return 0;
131}
132