1 /* $NetBSD: properties.c,v 1.1 2015/05/13 07:07:36 pgoyette Exp $ */ 2 3 /*- 4 * Copyright (c) 2008 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: properties.c,v 1.1 2015/05/13 07:07:36 pgoyette Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/kernel.h> 34 #include <sys/module.h> 35 36 MODULE(MODULE_CLASS_MISC, properties, NULL); 37 38 static void 39 handle_props(prop_dictionary_t props) 40 { 41 const char *msg; 42 prop_string_t str; 43 44 if (props != NULL) { 45 str = prop_dictionary_get(props, "msg"); 46 } else { 47 printf("No property dictionary was provided.\n"); 48 str = NULL; 49 } 50 if (str == NULL) 51 printf("The 'msg' property was not given.\n"); 52 else if (prop_object_type(str) != PROP_TYPE_STRING) 53 printf("The 'msg' property is not a string.\n"); 54 else { 55 msg = prop_string_cstring_nocopy(str); 56 if (msg == NULL) 57 printf("Failed to process the 'msg' property.\n"); 58 else 59 printf("The 'msg' property is: %s\n", msg); 60 } 61 } 62 63 static int 64 properties_modcmd(modcmd_t cmd, void *arg) 65 { 66 switch (cmd) { 67 case MODULE_CMD_INIT: 68 handle_props(arg); 69 return 0; 70 case MODULE_CMD_FINI: 71 return 0; 72 default: 73 return ENOTTY; 74 } 75 } 76