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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 1997 Doug Rabson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/linker.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <sysexits.h>
#include <unistd.h>
static void
usage(void)
{
fprintf(stderr, "usage: kldunload [-fv] -i id ...\n");
fprintf(stderr, " kldunload [-fv] [-n] name ...\n");
exit(EX_USAGE);
}
#define OPT_NULL 0x00
#define OPT_ID 0x01
#define OPT_VERBOSE 0x02
#define OPT_FORCE 0x04
int
main(int argc, char** argv)
{
struct kld_file_stat stat;
int c, fileid, force, opt;
char *filename;
filename = NULL;
opt = OPT_NULL;
while ((c = getopt(argc, argv, "finv")) != -1) {
switch (c) {
case 'f':
opt |= OPT_FORCE;
break;
case 'i':
opt |= OPT_ID;
break;
case 'n':
/*
* XXX: For backward compatibility. Currently does
* nothing
*/
break;
case 'v':
opt |= OPT_VERBOSE;
break;
default:
usage();
}
}
argc -= optind;
argv += optind;
if (argc == 0)
usage();
while ((filename = *argv++) != NULL) {
if (opt & OPT_ID) {
fileid = atoi(filename);
if (fileid < 0)
errx(EXIT_FAILURE, "Invalid ID %s", optarg);
} else {
if ((fileid = kldfind(filename)) < 0)
errx(EXIT_FAILURE, "can't find file %s",
filename);
}
if (opt & OPT_VERBOSE) {
stat.version = sizeof(stat);
if (kldstat(fileid, &stat) < 0)
err(EXIT_FAILURE, "can't stat file");
(void) printf("Unloading %s, id=%d\n", stat.name,
fileid);
}
if (opt & OPT_FORCE)
force = LINKER_UNLOAD_FORCE;
else
force = LINKER_UNLOAD_NORMAL;
if (kldunloadf(fileid, force) < 0)
err(EXIT_FAILURE, "can't unload file");
}
return (EXIT_SUCCESS);
}
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