xref: /freebsd/sbin/kldstat/kldstat.c (revision ce834215a70ff69e7e222827437116eee2f9ac6f)
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 
36 static char* progname;
37 
38 static 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 
49 static 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 
70 static void
71 usage()
72 {
73     fprintf(stderr, "usage: %s [-v]\n", progname);
74     exit(1);
75 }
76 
77 int 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