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btpin.c revision 1.1 
      1 /*	$NetBSD: btpin.c,v 1.1 2006/06/19 15:44:56 gdamore Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2006 Itronix Inc.
      5  * All rights reserved.
      6  *
      7  * Written by Iain Hibbert for Itronix Inc.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. The name of Itronix Inc. may not be used to endorse
     18  *    or promote products derived from this software without specific
     19  *    prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     23  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
     25  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     26  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     27  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     28  * ON ANY THEORY OF LIABILITY, WHETHER IN
     29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     31  * POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 #include <sys/cdefs.h>
     35 __COPYRIGHT("@(#) Copyright (c) 2006 Itronix, Inc\n"
     36 	    "All rights reserved.\n");
     37 __RCSID("$NetBSD: btpin.c,v 1.1 2006/06/19 15:44:56 gdamore Exp $");
     38 
     39 #include <sys/types.h>
     40 #include <sys/un.h>
     41 #include <bluetooth.h>
     42 #include <err.h>
     43 #include <stdlib.h>
     44 #include <string.h>
     45 #include <time.h>
     46 #include <unistd.h>
     47 
     48 #include "bthcid.h"
     49 
     50 int  main(int, char *[]);
     51 void usage(void);
     52 
     53 int
     54 main(int ac, char *av[])
     55 {
     56 	client_pin_response_t rp;
     57 	struct sockaddr_un un;
     58 	char *pin = NULL;
     59 	int ch, s, len;
     60 
     61 	memset(&rp, 0, sizeof(rp));
     62 	len = -1;
     63 
     64 	memset(&un, 0, sizeof(un));
     65 	un.sun_len = sizeof(un);
     66 	un.sun_family = AF_LOCAL;
     67 	strlcpy(un.sun_path, BTHCID_SOCKET_NAME, sizeof(un.sun_path));
     68 
     69 	while ((ch = getopt(ac, av, "a:d:l:p:rs:")) != EOF) {
     70 		switch (ch) {
     71 		case 'a':
     72 			if (!bt_aton(optarg, &rp.raddr)) {
     73 				struct hostent  *he = NULL;
     74 
     75 				if ((he = bt_gethostbyname(optarg)) == NULL)
     76 					errx(EXIT_FAILURE, "%s: %s", optarg,
     77 							hstrerror(h_errno));
     78 
     79 				bdaddr_copy(&rp.raddr, (bdaddr_t *)he->h_addr);
     80 			}
     81 			break;
     82 
     83 		case 'd':
     84 			if (!bt_devaddr(optarg, &rp.laddr))
     85 				err(EXIT_FAILURE, "%s", optarg);
     86 
     87 			break;
     88 
     89 		case 'l':
     90 			len = atoi(optarg);
     91 			if (len < 1 || len > HCI_PIN_SIZE)
     92 				errx(EXIT_FAILURE, "Invalid PIN length");
     93 
     94 			break;
     95 
     96 		case 'p':
     97 			pin = optarg;
     98 			break;
     99 
    100 		case 'r':
    101 			if (len == -1)
    102 				len = 4;
    103 
    104 			break;
    105 
    106 		case 's':
    107 			strlcpy(un.sun_path, optarg, sizeof(un.sun_path));
    108 			break;
    109 
    110 		default:
    111 			usage();
    112 		}
    113 	}
    114 
    115 	if (bdaddr_any(&rp.raddr))
    116 		usage();
    117 
    118 	if (pin == NULL) {
    119 		if (len == -1)
    120 			usage();
    121 
    122 		srandom(time(NULL));
    123 
    124 		pin = (char *)rp.pin;
    125 		while (len-- > 0)
    126 			*pin++ = '0' + (random() % 10);
    127 
    128 		printf("PIN: %.*s\n", HCI_PIN_SIZE, rp.pin);
    129 	} else {
    130 		if (len != -1)
    131 			usage();
    132 
    133 		strncpy((char *)rp.pin, pin, HCI_PIN_SIZE);
    134 	}
    135 
    136 	s = socket(PF_LOCAL, SOCK_STREAM, 0);
    137 	if (s < 0)
    138 		err(EXIT_FAILURE, "socket");
    139 
    140 	if (connect(s, (struct sockaddr *)&un, sizeof(un)) < 0)
    141 		err(EXIT_FAILURE, "connect(\"%s\")", un.sun_path);
    142 
    143 	if (send(s, &rp, sizeof(rp), 0) != sizeof(rp))
    144 		err(EXIT_FAILURE, "send");
    145 
    146 	close(s);
    147 	exit(EXIT_SUCCESS);
    148 }
    149 
    150 void
    151 usage(void)
    152 {
    153 
    154 	fprintf(stderr,
    155 		"usage: %s [-d device] [-s socket] [-p pin | -r [-l len]] -a addr\n"
    156 		"", getprogname());
    157 
    158 	exit(EXIT_FAILURE);
    159 }
    160