xref: /freebsd/sbin/kldstat/kldstat.c (revision 2ad872c5794e4c26fdf6ed219ad3f09ca0d5304a)
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
28 static const char rcsid[] =
29 	"$Id: kldstat.c,v 1.4 1998/01/05 07:09:28 charnier Exp $";
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 static void
42 printmod(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 
53 static 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 
74 static void
75 usage(void)
76 {
77     fprintf(stderr, "usage: kldstat [-v] [-i id] [-n name]\n");
78     exit(1);
79 }
80 
81 int
82 main(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