freebsd-dev/sbin/kldload/kldload.c

/*-
 * 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.
 */

#ifndef lint
static const char rcsid[] =
  "$FreeBSD$";
#endif /* not lint */

#include <err.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/param.h>
#include <sys/linker.h>

static void
usage(void)
{
    fprintf(stderr, "usage: kldload [-v] filename\n");
    exit(1);
}

int
main(int argc, char** argv)
{
    int c;
    int verbose = 0;
    int fileid;

    while ((c = getopt(argc, argv, "v")) != -1)
	switch (c) {
	case 'v':
	    verbose = 1;
	    break;
	default:
	    usage();
	}
    argc -= optind;
    argv += optind;

    if (argc != 1)
	usage();

    fileid = kldload(argv[0]);
    if (fileid < 0)
	err(1, "can't load %s", argv[0]);
    else
	if (verbose)
	    printf("Loaded %s, id=%d\n", argv[0], fileid);

    return 0;
}