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("$FreeBSD$");
29
30 #include <err.h>
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include <unistd.h>
34 #include <sys/types.h>
35 #include <sys/param.h>
36 #include <sys/module.h>
37 #include <sys/linker.h>
38
39 #define POINTER_WIDTH ((int)(sizeof(void *) * 2 + 2))
40
41 static void
printmod(int modid)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 printfile(int fileid, int verbose)
55 {
56 struct kld_file_stat stat;
57 int modid;
58
59 stat.version = sizeof(struct kld_file_stat);
60 if (kldstat(fileid, &stat) < 0)
61 err(1, "can't stat file id %d", fileid);
62 else
63 printf("%2d %4d %p %-8zx %s",
64 stat.id, stat.refs, stat.address, stat.size,
65 stat.name);
66
67 if (verbose) {
68 printf(" (%s)\n", stat.pathname);
69 printf("\tContains modules:\n");
70 printf("\t\tId Name\n");
71 for (modid = kldfirstmod(fileid); modid > 0;
72 modid = modfnext(modid))
73 printmod(modid);
74 } else
75 printf("\n");
76 }
77
78 static void
usage(void)79 usage(void)
80 {
81 fprintf(stderr, "usage: kldstat [-q] [-v] [-i id] [-n filename]\n");
82 fprintf(stderr, " kldstat [-q] [-m modname]\n");
83 exit(1);
84 }
85
86 int
main(int argc,char ** argv)87 main(int argc, char** argv)
88 {
89 int c;
90 int verbose = 0;
91 int fileid = 0;
92 int quiet = 0;
93 char* filename = NULL;
94 char* modname = NULL;
95 char* p;
96
97 while ((c = getopt(argc, argv, "i:m:n:qv")) != -1)
98 switch (c) {
99 case 'i':
100 fileid = (int)strtoul(optarg, &p, 10);
101 if (*p != '\0')
102 usage();
103 break;
104 case 'm':
105 modname = optarg;
106 break;
107 case 'n':
108 filename = optarg;
109 break;
110 case 'q':
111 quiet = 1;
112 break;
113 case 'v':
114 verbose = 1;
115 break;
116 default:
117 usage();
118 }
119 argc -= optind;
120 argv += optind;
121
122 if (argc != 0)
123 usage();
124
125 if (modname != NULL) {
126 int modid;
127 struct module_stat stat;
128
129 if ((modid = modfind(modname)) < 0) {
130 if (!quiet)
131 warn("can't find module %s", modname);
132 return 1;
133 } else if (quiet) {
134 return 0;
135 }
136
137 stat.version = sizeof(struct module_stat);
138 if (modstat(modid, &stat) < 0)
139 warn("can't stat module id %d", modid);
140 else {
141 printf("Id Refs Name\n");
142 printf("%3d %4d %s\n", stat.id, stat.refs, stat.name);
143 }
144
145 return 0;
146 }
147
148 if (filename != NULL) {
149 if ((fileid = kldfind(filename)) < 0) {
150 if (!quiet)
151 warn("can't find file %s", filename);
152 return 1;
153 } else if (quiet) {
154 return 0;
155 }
156 }
157
158 printf("Id Refs Address%*c Size Name\n", POINTER_WIDTH - 7, ' ');
159 if (fileid != 0)
160 printfile(fileid, verbose);
161 else
162 for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid))
163 printfile(fileid, verbose);
164
165 return 0;
166 }
167