2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 1997 Doug Rabson
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/types.h>
33 #include <sys/param.h>
34 #include <sys/linker.h>
35 #include <sys/sysctl.h>
44 #define PATHCTL "kern.module_path"
47 * Check to see if the requested module is specified as a filename with no
48 * path. If so and if a file by the same name exists in the module path,
49 * warn the user that the module in the path will be used in preference.
52 path_check(const char *kldname, int quiet)
54 char *path, *tmppath, *element;
57 char kldpath[MAXPATHLEN];
58 size_t miblen, pathlen;
63 if (strchr(kldname, '/') != NULL)
65 if (strstr(kldname, ".ko") == NULL)
67 if (stat(kldname, &sb) != 0)
75 if (sysctlnametomib(PATHCTL, mib, &miblen) != 0)
76 err(1, "sysctlnametomib(%s)", PATHCTL);
77 if (sysctl(mib, miblen, NULL, &pathlen, NULL, 0) == -1)
78 err(1, "getting path: sysctl(%s) - size only", PATHCTL);
79 path = malloc(pathlen + 1);
81 err(1, "allocating %lu bytes for the path",
82 (unsigned long)pathlen + 1);
83 if (sysctl(mib, miblen, path, &pathlen, NULL, 0) == -1)
84 err(1, "getting path: sysctl(%s)", PATHCTL);
87 while ((element = strsep(&tmppath, ";")) != NULL) {
88 strlcpy(kldpath, element, MAXPATHLEN);
89 if (kldpath[strlen(kldpath) - 1] != '/') {
90 strlcat(kldpath, "/", MAXPATHLEN);
92 strlcat(kldpath, kldname, MAXPATHLEN);
94 if (stat(kldpath, &sb) == -1)
99 if (sb.st_dev != dev || sb.st_ino != ino) {
101 warnx("%s will be loaded from %s, not the "
102 "current directory", kldname, element);
104 } else if (sb.st_dev == dev && sb.st_ino == ino)
112 warnx("%s is not in the module path", kldname);
123 fprintf(stderr, "usage: kldload [-nqv] file ...\n");
128 main(int argc, char** argv)
142 while ((c = getopt(argc, argv, "nqv")) != -1) {
165 while (argc-- != 0) {
166 if (path_check(argv[0], quiet) == 0) {
167 fileid = kldload(argv[0]);
169 if (check_loaded != 0 && errno == EEXIST) {
171 printf("%s is already "
172 "loaded\n", argv[0]);
176 warnx("can't load %s: module "
178 "in kernel", argv[0]);
181 warnx("an error occurred while "
182 "loading the module. "
183 "Please check dmesg(8) for "
187 warn("can't load %s", argv[0]);
194 printf("Loaded %s, id=%d\n", argv[0],
202 return (errors ? 1 : 0);