sbin/kldload/kldload.c

   1 /*-
   2  * Copyright (c) 1997 Doug Rabson
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD: src/sbin/kldload/kldload.c,v 1.6.2.2 2002/12/07 08:44:02 jmallett Exp $
  27  * $DragonFly: src/sbin/kldload/kldload.c,v 1.3 2005/04/02 16:04:41 liamfoy Exp $
  28  */
  29 #include <sys/param.h>
  30 #include <sys/linker.h>
  31
  32 #include <err.h>
  33 #include <errno.h>
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <unistd.h>
  37
  38 static void
  39 usage(void)
  40 {
  41     fprintf(stderr, "usage: kldload [-nv] file ...\n");
  42     exit(1);
  43 }
  44
  45 int
  46 main(int argc, char **argv)
  47 {
  48     int c;
  49     int errors;
  50     int fileid;
  51     int verbose;
  52     int check_loaded;
  53
  54     errors = 0;
  55     verbose = 0;
  56     check_loaded = 0;
  57
  58     while ((c = getopt(argc, argv, "nv")) != -1)
  59         switch (c) {
  60         case 'n':
  61             check_loaded = 1;
  62             break;
  63         case 'v':
  64             verbose = 1;
  65             break;
  66         default:
  67             usage();
  68         }
  69     argc -= optind;
  70     argv += optind;
  71
  72     if (argc == 0)
  73         usage();
  74
  75     while (argc-- != 0) {
  76         fileid = kldload(argv[0]);
  77         if (fileid < 0) {
  78             if (check_loaded != 0 && errno == EEXIST) {
  79                 if (verbose)
  80                     printf("%s is already loaded\n", argv[0]);
  81             } else {
  82                 switch (errno) {
  83                 case EEXIST:
  84                     warnx("can't load %s: module already loaded or "
  85                         "in kernel", argv[0]);
  86                     break;
  87                 case ENOEXEC:
  88                     warnx("an error occurred while loading the module. "
  89                         "Please check dmesg(8) for more details.");
  90                     break;
  91                 default:
  92                     warn("can't load %s", argv[0]);
  93                     break;
  94                 }
  95                 errors++;
  96             }
  97         } else {
  98             if (verbose)
  99                 printf("Loaded %s, id=%d\n", argv[0], fileid);
 100         }
 101         argv++;
 102     }
 103
 104     return errors ? 1 : 0;
 105 }