1 /* $NetBSD: k_helper3.c,v 1.3 2012/04/17 21:39:19 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 2012 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jukka Ruohonen. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 #include <sys/cdefs.h> 32 __RCSID("$NetBSD: k_helper3.c,v 1.3 2012/04/17 21:39:19 martin Exp $"); 33 34 #include <sys/module.h> 35 36 #include <assert.h> 37 #include <errno.h> 38 #include <stdarg.h> 39 #include <stdio.h> 40 #include <stdlib.h> 41 #include <string.h> 42 43 #include <prop/proplib.h> 44 45 static int load(const char *, ...); 46 47 /* 48 * A program that loads a module and returns the errno(2) from modctl(8). 49 */ 50 int 51 main(int argc, char *argv[]) 52 { 53 assert(argc == 3); 54 55 return load(argv[1], argv[2]); 56 } 57 58 static __printflike(1, 2) int 59 load(const char *fmt, ...) 60 { 61 char filename[MAXPATHLEN], *propsstr, *shortname, *dot; 62 prop_dictionary_t props; 63 modctl_load_t ml; 64 int serrno, rv; 65 va_list ap; 66 67 props = prop_dictionary_create(); 68 propsstr = prop_dictionary_externalize(props); 69 assert(propsstr != NULL); 70 prop_object_release(props); 71 72 va_start(ap, fmt); 73 (void)vsnprintf(filename, sizeof(filename), fmt, ap); 74 va_end(ap); 75 76 ml.ml_filename = filename; 77 ml.ml_flags = 0; 78 ml.ml_props = propsstr; 79 ml.ml_propslen = strlen(propsstr); 80 81 printf("Loading module %s\n", filename); 82 errno = serrno = 0; 83 84 rv = modctl(MODCTL_LOAD, &ml); 85 86 if (rv != 0) 87 serrno = errno; 88 89 shortname = strrchr(filename, '/'); 90 if (shortname != NULL) 91 shortname++; 92 else 93 shortname = filename; 94 dot = strrchr(shortname, '.'); 95 if (dot) 96 *dot = 0; 97 (void)modctl(MODCTL_UNLOAD, shortname); 98 99 free(propsstr); 100 101 return serrno; 102 } 103