Annotation of src/usr.bin/modstat/modstat.c, Revision 1.7
1.7 ! millert 1: /* $OpenBSD: modstat.c,v 1.6 1996/08/06 18:17:22 deraadt Exp $ */
1.6 deraadt 2:
1.1 deraadt 3: /*
4: * Copyright (c) 1993 Terrence R. Lambert.
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: * 3. All advertising materials mentioning features or use of this software
16: * must display the following acknowledgement:
17: * This product includes software developed by Terrence R. Lambert.
18: * 4. The name Terrence R. Lambert may not be used to endorse or promote
19: * products derived from this software without specific prior written
20: * permission.
21: *
22: * THIS SOFTWARE IS PROVIDED BY TERRENCE R. LAMBERT ``AS IS'' AND ANY
23: * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25: * ARE DISCLAIMED. IN NO EVENT SHALL THE TERRENCE R. LAMBERT BE LIABLE
26: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32: * SUCH DAMAGE.
33: *
34: */
35:
36: #include <stdio.h>
37: #include <stdlib.h>
38: #include <err.h>
39: #include <string.h>
40: #include <a.out.h>
41: #include <sys/param.h>
42: #include <sys/ioctl.h>
43: #include <sys/conf.h>
44: #include <sys/mount.h>
45: #include <sys/lkm.h>
46: #include <sys/file.h>
47: #include <errno.h>
48: #include "pathnames.h"
49:
50: void
51: usage()
52: {
53:
1.4 deraadt 54: fprintf(stderr,
1.6 deraadt 55: "usage: modstat [-i moduleid] [-n modulename]\n");
1.1 deraadt 56: exit(1);
57: }
58:
59: static char *type_names[] = {
60: "SYSCALL",
61: "VFS",
62: "DEV",
63: "STRMOD",
64: "EXEC",
65: "MISC"
66: };
67:
68: int
69: dostat(devfd, modnum, modname)
70: int devfd;
71: int modnum;
72: char *modname;
73: {
74: struct lmc_stat sbuf;
1.2 mickey 75: char name[MAXLKMNAME] = "";
76:
77: sbuf.id = modnum;
78: sbuf.name = name;
1.1 deraadt 79:
1.6 deraadt 80: if (modname != NULL) {
81: if (strlen(modname) >= sizeof(sbuf.name))
82: return 4;
1.1 deraadt 83: strcpy(sbuf.name, modname);
1.6 deraadt 84: }
1.1 deraadt 85:
86: if (ioctl(devfd, LMSTAT, &sbuf) == -1) {
87: switch (errno) {
88: case EINVAL: /* out of range */
89: return 2;
90: case ENOENT: /* no such entry */
91: return 1;
92: default: /* other error (EFAULT, etc) */
93: warn("LMSTAT");
94: return 4;
95: }
96: }
97:
98: /*
99: * Decode this stat buffer...
100: */
1.5 mickey 101: printf("%-7s %3d %3d %08x %04x %8x %3d %s\n",
1.1 deraadt 102: type_names[sbuf.type],
103: sbuf.id, /* module id */
104: sbuf.offset, /* offset into modtype struct */
105: sbuf.area, /* address module loaded at */
106: sbuf.size, /* size in pages(K) */
107: sbuf.private, /* kernel address of private area */
108: sbuf.ver, /* Version; always 1 for now */
109: sbuf.name /* name from private area */
110: );
111:
112: /*
113: * Done (success).
114: */
115: return 0;
116: }
117:
118: int devfd;
119:
120: void
121: cleanup()
122: {
123:
124: close(devfd);
125: }
126:
127: int
128: main(argc, argv)
129: int argc;
130: char *argv[];
131: {
132: int c;
133: int modnum = -1;
134: char *modname = NULL;
135:
1.7 ! millert 136: while ((c = getopt(argc, argv, "i:n:")) != -1) {
1.1 deraadt 137: switch (c) {
138: case 'i':
139: modnum = atoi(optarg);
140: break; /* number */
141: case 'n':
142: modname = optarg;
143: break; /* name */
1.6 deraadt 144: default:
1.1 deraadt 145: usage();
146: break;
147: }
148: }
149: argc -= optind;
150: argv += optind;
151:
152: if (argc != 0)
153: usage();
154:
155: /*
156: * Open the virtual device device driver for exclusive use (needed
157: * to ioctl() to retrive the loaded module(s) status).
158: */
159: if ((devfd = open(_PATH_LKM, O_RDONLY, 0)) == -1)
160: err(2, _PATH_LKM);
161:
162: atexit(cleanup);
163:
1.5 mickey 164: printf("Type Id Off Loadaddr Size Info Rev Module Name\n");
1.1 deraadt 165:
166: /*
167: * Oneshot?
168: */
169: if (modnum != -1 || modname != NULL) {
170: if (dostat(devfd, modnum, modname))
171: exit(3);
172: exit(0);
173: }
174:
175: /*
176: * Start at 0 and work up until "EINVAL".
177: */
178: for (modnum = 0; dostat(devfd, modnum, NULL) < 2; modnum++)
179: ;
180:
181: exit(0);
182: }
![[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