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      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