![[BACK]](/icons/back.gif){kind=icon}
Return to modstat.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / modstat|
Return to modstat.c CVS log | Up to [local] / src / usr.bin / modstat |
1.1 deraadt 1: /*
2: * Copyright (c) 1993 Terrence R. Lambert.
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: * 3. All advertising materials mentioning features or use of this software
14: * must display the following acknowledgement:
15: * This product includes software developed by Terrence R. Lambert.
16: * 4. The name Terrence R. Lambert may not be used to endorse or promote
17: * products derived from this software without specific prior written
18: * permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY TERRENCE R. LAMBERT ``AS IS'' AND ANY
21: * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE TERRENCE R. LAMBERT BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: *
32: * $Id: modstat.c,v 1.6 1995/06/27 00:18:19 jtc Exp $
33: */
34:
35: #include <stdio.h>
36: #include <stdlib.h>
37: #include <err.h>
38: #include <string.h>
39: #include <a.out.h>
40: #include <sys/param.h>
41: #include <sys/ioctl.h>
42: #include <sys/conf.h>
43: #include <sys/mount.h>
44: #include <sys/lkm.h>
45: #include <sys/file.h>
46: #include <errno.h>
47: #include "pathnames.h"
48:
49: void
50: usage()
51: {
52:
53: fprintf(stderr, "usage:\n");
54: fprintf(stderr, "modstat [-i <module id>] [-n <module name>]\n");
55: exit(1);
56: }
57:
58: static char *type_names[] = {
59: "SYSCALL",
60: "VFS",
61: "DEV",
62: "STRMOD",
63: "EXEC",
64: "MISC"
65: };
66:
67: int
68: dostat(devfd, modnum, modname)
69: int devfd;
70: int modnum;
71: char *modname;
72: {
73: struct lmc_stat sbuf;
74:
75: if (modname != NULL)
76: strcpy(sbuf.name, modname);
77:
78: sbuf.id = modnum;
79:
80: if (ioctl(devfd, LMSTAT, &sbuf) == -1) {
81: switch (errno) {
82: case EINVAL: /* out of range */
83: return 2;
84: case ENOENT: /* no such entry */
85: return 1;
86: default: /* other error (EFAULT, etc) */
87: warn("LMSTAT");
88: return 4;
89: }
90: }
91:
92: /*
93: * Decode this stat buffer...
94: */
95: printf("%-7s %3d %3d %08x %04x %8x %3d %s\n",
96: type_names[sbuf.type],
97: sbuf.id, /* module id */
98: sbuf.offset, /* offset into modtype struct */
99: sbuf.area, /* address module loaded at */
100: sbuf.size, /* size in pages(K) */
101: sbuf.private, /* kernel address of private area */
102: sbuf.ver, /* Version; always 1 for now */
103: sbuf.name /* name from private area */
104: );
105:
106: /*
107: * Done (success).
108: */
109: return 0;
110: }
111:
112: int devfd;
113:
114: void
115: cleanup()
116: {
117:
118: close(devfd);
119: }
120:
121: int
122: main(argc, argv)
123: int argc;
124: char *argv[];
125: {
126: int c;
127: int modnum = -1;
128: char *modname = NULL;
129:
130: while ((c = getopt(argc, argv, "i:n:")) != EOF) {
131: switch (c) {
132: case 'i':
133: modnum = atoi(optarg);
134: break; /* number */
135: case 'n':
136: modname = optarg;
137: break; /* name */
138: case '?':
139: usage();
140: default:
141: printf("default!\n");
142: break;
143: }
144: }
145: argc -= optind;
146: argv += optind;
147:
148: if (argc != 0)
149: usage();
150:
151: /*
152: * Open the virtual device device driver for exclusive use (needed
153: * to ioctl() to retrive the loaded module(s) status).
154: */
155: if ((devfd = open(_PATH_LKM, O_RDONLY, 0)) == -1)
156: err(2, _PATH_LKM);
157:
158: atexit(cleanup);
159:
160: printf("Type Id Off Loadaddr Size Info Rev Module Name\n");
161:
162: /*
163: * Oneshot?
164: */
165: if (modnum != -1 || modname != NULL) {
166: if (dostat(devfd, modnum, modname))
167: exit(3);
168: exit(0);
169: }
170:
171: /*
172: * Start at 0 and work up until "EINVAL".
173: */
174: for (modnum = 0; dostat(devfd, modnum, NULL) < 2; modnum++)
175: ;
176:
177: exit(0);
178: }