2 * Copyright (c) 1997 Doug Rabson
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/types.h>
31 #include <sys/param.h>
32 #include <sys/linker.h>
33 #include <sys/sysctl.h>
42 #define PATHCTL "kern.module_path"
44 static int path_check(const char *, int);
45 static void usage(void);
48 * Check to see if the requested module is specified as a filename with no
49 * path. If so and if a file by the same name exists in the module path,
50 * warn the user that the module in the path will be used in preference.
53 path_check(const char *kldname, int quiet)
56 size_t miblen, pathlen;
57 char kldpath[MAXPATHLEN];
58 char *path, *tmppath, *element;
63 if (strchr(kldname, '/') != NULL) {
66 if (strstr(kldname, ".ko") == NULL) {
69 if (stat(kldname, &sb) != 0) {
77 miblen = sizeof(mib) / sizeof(mib[0]);
78 if (sysctlnametomib(PATHCTL, mib, &miblen) != 0) {
79 err(1, "sysctlnametomib(%s)", PATHCTL);
81 if (sysctl(mib, miblen, NULL, &pathlen, NULL, 0) == -1) {
82 err(1, "getting path: sysctl(%s) - size only", PATHCTL);
84 path = malloc(pathlen + 1);
86 err(1, "allocating %lu bytes for the path",
87 (unsigned long)pathlen + 1);
89 if (sysctl(mib, miblen, path, &pathlen, NULL, 0) == -1) {
90 err(1, "getting path: sysctl(%s)", PATHCTL);
94 while ((element = strsep(&tmppath, ";")) != NULL) {
95 strlcpy(kldpath, element, MAXPATHLEN);
96 if (kldpath[strlen(kldpath) - 1] != '/') {
97 strlcat(kldpath, "/", MAXPATHLEN);
99 strlcat(kldpath, kldname, MAXPATHLEN);
101 if (stat(kldpath, &sb) == -1) {
107 if (sb.st_dev != dev || sb.st_ino != ino) {
109 warnx("%s will be loaded from %s, not the "
110 "current directory", kldname, element);
113 } else if (sb.st_dev == dev && sb.st_ino == ino) {
122 warnx("%s is not in the module path", kldname);
133 fprintf(stderr, "usage: kldload [-nqv] file ...\n");
138 main(int argc, char** argv)
152 while ((c = getopt(argc, argv, "nqv")) != -1) {
175 while (argc-- != 0) {
176 if (path_check(argv[0], quiet) == 0) {
177 fileid = kldload(argv[0]);
179 if (check_loaded != 0 && errno == EEXIST) {
181 printf("%s is already "
182 "loaded\n", argv[0]);
184 warn("can't load %s", argv[0]);
189 printf("Loaded %s, id=%d\n", argv[0],
198 return (errors ? 1 : 0);