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 * $Id$ 27 */ 28 29 #include <stdio.h> 30 #include <unistd.h> 31 #include <sys/param.h> 32 #include <sys/linker.h> 33 34 static char* progname; 35 36 static void usage() 37 { 38 fprintf(stderr, "usage: modunload [-i id] [-n filename]\n"); 39 exit(1); 40 } 41 42 int main(int argc, char** argv) 43 { 44 int c; 45 int verbose = 0; 46 int fileid = 0; 47 char* filename = 0; 48 49 progname = argv[0]; 50 while ((c = getopt(argc, argv, "vi:n:")) != -1) 51 switch (c) { 52 case 'v': 53 verbose = 1; 54 break; 55 case 'i': 56 fileid = atoi(optarg); 57 break; 58 case 'n': 59 filename = optarg; 60 break; 61 default: 62 usage(); 63 } 64 argc -= optind; 65 argv += optind; 66 67 if (argc != 0) 68 usage(); 69 70 if (fileid == 0 && filename == 0) 71 usage(); 72 73 if (filename) { 74 fileid = kldfind(filename); 75 if (fileid < 0) 76 err(1, "Can't find file %s", filename); 77 } 78 79 if (verbose) { 80 struct kld_file_stat stat; 81 stat.version = sizeof stat; 82 if (kldstat(fileid, &stat) < 0) 83 err(1, "Can't stat file"); 84 printf("Unloading %s, id=%d\n", stat.name, fileid); 85 } 86 87 if (kldunload(fileid) < 0) 88 err(1, "Can't unload file"); 89 90 return 0; 91 } 92 93