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/*-
* 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 <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/param.h>
#include <sys/linker.h>
static void
usage(void)
{
fprintf(stderr, "usage: kldunload [-fv] -i id\n");
fprintf(stderr, " kldunload [-fv] [-n] name\n");
exit(1);
}
int
main(int argc, char** argv)
{
int c;
int verbose = 0;
int fileid = 0;
int force = LINKER_UNLOAD_NORMAL;
char* filename = NULL;
while ((c = getopt(argc, argv, "fi:n:v")) != -1)
switch (c) {
case 'f':
force = LINKER_UNLOAD_FORCE;
break;
case 'i':
fileid = atoi(optarg);
if (!fileid)
errx(1, "Invalid ID %s", optarg);
break;
case 'n':
filename = optarg;
break;
case 'v':
verbose = 1;
break;
default:
usage();
}
argc -= optind;
argv += optind;
if (fileid == 0 && filename == NULL && (argc == 1)) {
filename = *argv;
argc--;
}
if (argc != 0 || (fileid != 0 && filename != NULL))
usage();
if (fileid == 0 && filename == NULL)
usage();
if (filename != NULL) {
if ((fileid = kldfind(filename)) < 0)
err(1, "can't find file %s", filename);
}
if (verbose) {
struct kld_file_stat stat;
stat.version = sizeof stat;
if (kldstat(fileid, &stat) < 0)
err(1, "can't stat file");
printf("Unloading %s, id=%d\n", stat.name, fileid);
}
if (kldunloadf(fileid, force) < 0)
err(1, "can't unload file");
return 0;
}
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