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/kldunload/kldunload.c,v 1.10 1999/09/08 05:46:47 bde Exp $ 27 * $DragonFly: src/sbin/kldunload/kldunload.c,v 1.5 2007/11/25 18:10:07 swildner Exp $ 28 */ 29 #include <sys/param.h> 30 #include <sys/linker.h> 31 32 #include <err.h> 33 #include <stdio.h> 34 #include <stdlib.h> 35 #include <unistd.h> 36 37 static void 38 usage(void) 39 { 40 fprintf(stderr, "usage: kldunload [-v] -i id\n"); 41 fprintf(stderr, " kldunload [-v] [-n] name\n"); 42 exit(1); 43 } 44 45 int 46 main(int argc, char** argv) 47 { 48 int c; 49 int verbose = 0; 50 int fileid = 0; 51 long tmp; 52 char *ep; 53 char* filename = NULL; 54 55 while ((c = getopt(argc, argv, "i:n:v")) != -1) 56 switch (c) { 57 case 'i': 58 tmp = strtol(optarg, &ep, 10); 59 if (*ep != '\0' || tmp < INT_MIN || tmp > INT_MAX) 60 errx(1, "invalid file id: %s", optarg); 61 fileid = (int)tmp; 62 break; 63 case 'n': 64 filename = optarg; 65 break; 66 case 'v': 67 verbose = 1; 68 break; 69 default: 70 usage(); 71 } 72 argc -= optind; 73 argv += optind; 74 75 if (!fileid && filename == NULL && (argc == 1)) { 76 filename = *argv; 77 argc--; 78 } 79 80 if (argc != 0 || (fileid && filename != NULL)) 81 usage(); 82 83 if (fileid == 0 && filename == NULL) 84 usage(); 85 86 if (filename != NULL) { 87 if ((fileid = kldfind(filename)) < 0) 88 err(1, "can't find file %s", filename); 89 } 90 91 if (verbose) { 92 struct kld_file_stat stat; 93 stat.version = sizeof stat; 94 if (kldstat(fileid, &stat) < 0) 95 err(1, "can't stat file"); 96 printf("Unloading %s, id=%d\n", stat.name, fileid); 97 } 98 99 if (kldunload(fileid) < 0) 100 err(1, "can't unload file"); 101 102 return 0; 103 } 104