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105 lines
2.8 KiB
C
105 lines
2.8 KiB
C
/*-
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* Copyright (c) 1997 Doug Rabson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/param.h>
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#include <sys/linker.h>
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static void
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usage(void)
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{
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fprintf(stderr, "usage: kldunload [-fv] -i id\n");
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fprintf(stderr, " kldunload [-fv] [-n] name\n");
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exit(1);
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}
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int
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main(int argc, char** argv)
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{
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int c;
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int verbose = 0;
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int fileid = 0;
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int force = LINKER_UNLOAD_NORMAL;
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char* filename = NULL;
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while ((c = getopt(argc, argv, "fi:n:v")) != -1)
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switch (c) {
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case 'f':
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force = LINKER_UNLOAD_FORCE;
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break;
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case 'i':
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fileid = atoi(optarg);
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if (!fileid)
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errx(1, "Invalid ID %s", optarg);
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break;
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case 'n':
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filename = optarg;
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break;
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case 'v':
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verbose = 1;
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break;
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default:
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usage();
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}
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argc -= optind;
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argv += optind;
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if (fileid == 0 && filename == NULL && (argc == 1)) {
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filename = *argv;
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argc--;
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}
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if (argc != 0 || (fileid != 0 && filename != NULL))
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usage();
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if (fileid == 0 && filename == NULL)
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usage();
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if (filename != NULL) {
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if ((fileid = kldfind(filename)) < 0)
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err(1, "can't find file %s", filename);
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}
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if (verbose) {
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struct kld_file_stat stat;
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stat.version = sizeof stat;
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if (kldstat(fileid, &stat) < 0)
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err(1, "can't stat file");
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printf("Unloading %s, id=%d\n", stat.name, fileid);
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}
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if (kldunloadf(fileid, force) < 0)
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err(1, "can't unload file");
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return 0;
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}
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