1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 1997 Doug Rabson
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31
32 #include <sys/types.h>
33 #include <sys/param.h>
34 #include <sys/module.h>
35 #include <sys/linker.h>
36
37 #include <err.h>
38 #include <libutil.h>
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <strings.h>
42 #include <unistd.h>
43
44 #define PTR_WIDTH ((int)(sizeof(void *) * 2 + 2))
45
46 static void printmod(int);
47 static void printfile(int, int, int);
48 static void usage(void) __dead2;
49
50 static int showdata = 0;
51
52 static void
printmod(int modid)53 printmod(int modid)
54 {
55 struct module_stat stat;
56
57 bzero(&stat, sizeof(stat));
58 stat.version = sizeof(struct module_stat);
59 if (modstat(modid, &stat) < 0) {
60 warn("can't stat module id %d", modid);
61 return;
62 }
63 if (showdata) {
64 printf("\t\t%3d %s (%d, %u, 0x%lx)\n", stat.id,
65 stat.name, stat.data.intval, stat.data.uintval,
66 stat.data.ulongval);
67 } else
68 printf("\t\t%3d %s\n", stat.id, stat.name);
69 }
70
71 static void
printfile(int fileid,int verbose,int humanized)72 printfile(int fileid, int verbose, int humanized)
73 {
74 struct kld_file_stat stat;
75 int modid;
76 char buf[5];
77
78 stat.version = sizeof(struct kld_file_stat);
79 if (kldstat(fileid, &stat) < 0)
80 err(1, "can't stat file id %d", fileid);
81 if (humanized) {
82 humanize_number(buf, sizeof(buf), stat.size,
83 "", HN_AUTOSCALE, HN_DECIMAL | HN_NOSPACE);
84
85 printf("%2d %4d %*p %5s %s",
86 stat.id, stat.refs, PTR_WIDTH, stat.address,
87 buf, stat.name);
88 } else {
89 printf("%2d %4d %*p %8zx %s",
90 stat.id, stat.refs, PTR_WIDTH, stat.address,
91 stat.size, stat.name);
92 }
93
94 if (verbose) {
95 printf(" (%s)\n", stat.pathname);
96 printf("\tContains modules:\n");
97 printf("\t\t Id Name\n");
98 for (modid = kldfirstmod(fileid); modid > 0; modid = modfnext(modid))
99 printmod(modid);
100 } else
101 printf("\n");
102 }
103
104 static void __dead2
usage(void)105 usage(void)
106 {
107 fprintf(stderr, "usage: %1$s [-dhqv] [-i id] [-n filename]\n"
108 " %1$s [-dq] [-m modname]\n", getprogname());
109 exit(1);
110 }
111
112 int
main(int argc,char * argv[])113 main(int argc, char *argv[])
114 {
115 struct module_stat stat;
116 int humanized = 0;
117 int verbose = 0;
118 int fileid = 0;
119 int quiet = 0;
120 int c, modid;
121 char *filename = NULL;
122 char *modname = NULL;
123 char *p;
124
125 while ((c = getopt(argc, argv, "dhi:m:n:qv")) != -1) {
126 switch (c) {
127 case 'd':
128 showdata = 1;
129 break;
130 case 'h':
131 humanized = 1;
132 break;
133 case 'i':
134 fileid = (int)strtoul(optarg, &p, 10);
135 if (*p != '\0')
136 usage();
137 break;
138 case 'm':
139 modname = optarg;
140 break;
141 case 'n':
142 filename = optarg;
143 break;
144 case 'q':
145 quiet = 1;
146 break;
147 case 'v':
148 verbose = 1;
149 break;
150 default:
151 usage();
152 }
153 }
154 argc -= optind;
155 argv += optind;
156
157 if (argc != 0)
158 usage();
159
160 if (modname != NULL) {
161 if ((modid = modfind(modname)) < 0) {
162 if (!quiet)
163 warn("can't find module %s", modname);
164 return (1);
165 } else if (quiet)
166 return (0);
167
168 stat.version = sizeof(struct module_stat);
169 if (modstat(modid, &stat) < 0)
170 warn("can't stat module id %d", modid);
171 else {
172 if (showdata) {
173 printf("Id Refs Name data..(int, uint, ulong)\n");
174 printf("%3d %4d %s (%d, %u, 0x%lx)\n",
175 stat.id, stat.refs, stat.name,
176 stat.data.intval, stat.data.uintval,
177 stat.data.ulongval);
178 } else {
179 printf("Id Refs Name\n");
180 printf("%3d %4d %s\n", stat.id, stat.refs,
181 stat.name);
182 }
183 }
184
185 return (0);
186 }
187
188 if (filename != NULL) {
189 if ((fileid = kldfind(filename)) < 0) {
190 if (!quiet)
191 warn("can't find file %s", filename);
192 return (1);
193 } else if (quiet)
194 return (0);
195 }
196
197 if (humanized) {
198 printf("Id Refs Address%*c %5s Name\n", PTR_WIDTH - 7,
199 ' ', "Size");
200 } else {
201 printf("Id Refs Address%*c %8s Name\n", PTR_WIDTH - 7,
202 ' ', "Size");
203 }
204 if (fileid != 0)
205 printfile(fileid, verbose, humanized);
206 else
207 for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid))
208 printfile(fileid, verbose, humanized);
209
210 return (0);
211 }
212