1 /* $NetBSD: btpin.c,v 1.4 2008/07/21 14:19:21 lukem 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. All rights reserved."); 36 __RCSID("$NetBSD: btpin.c,v 1.4 2008/07/21 14:19:21 lukem Exp $"); 37 38 #include <sys/types.h> 39 #include <sys/un.h> 40 #include <bluetooth.h> 41 #include <err.h> 42 #include <stdlib.h> 43 #include <string.h> 44 #include <time.h> 45 #include <unistd.h> 46 47 int main(int, char *[]); 48 void usage(void); 49 50 int 51 main(int ac, char *av[]) 52 { 53 bthcid_pin_response_t rp; 54 struct sockaddr_un un; 55 char *pin = NULL; 56 int ch, s, len; 57 58 memset(&rp, 0, sizeof(rp)); 59 len = -1; 60 61 memset(&un, 0, sizeof(un)); 62 un.sun_len = sizeof(un); 63 un.sun_family = AF_LOCAL; 64 strlcpy(un.sun_path, BTHCID_SOCKET_NAME, sizeof(un.sun_path)); 65 66 while ((ch = getopt(ac, av, "a:d:l:p:rs:")) != EOF) { 67 switch (ch) { 68 case 'a': 69 if (!bt_aton(optarg, &rp.raddr)) { 70 struct hostent *he = NULL; 71 72 if ((he = bt_gethostbyname(optarg)) == NULL) 73 errx(EXIT_FAILURE, "%s: %s", optarg, 74 hstrerror(h_errno)); 75 76 bdaddr_copy(&rp.raddr, (bdaddr_t *)he->h_addr); 77 } 78 break; 79 80 case 'd': 81 if (!bt_devaddr(optarg, &rp.laddr)) 82 err(EXIT_FAILURE, "%s", optarg); 83 84 break; 85 86 case 'l': 87 len = atoi(optarg); 88 if (len < 1 || len > HCI_PIN_SIZE) 89 errx(EXIT_FAILURE, "Invalid PIN length"); 90 91 break; 92 93 case 'p': 94 pin = optarg; 95 break; 96 97 case 'r': 98 if (len == -1) 99 len = 4; 100 101 break; 102 103 case 's': 104 strlcpy(un.sun_path, optarg, sizeof(un.sun_path)); 105 break; 106 107 default: 108 usage(); 109 } 110 } 111 112 if (bdaddr_any(&rp.raddr)) 113 usage(); 114 115 if (pin == NULL) { 116 if (len == -1) 117 usage(); 118 119 srandom(time(NULL)); 120 121 pin = (char *)rp.pin; 122 while (len-- > 0) 123 *pin++ = '0' + (random() % 10); 124 125 printf("PIN: %.*s\n", HCI_PIN_SIZE, rp.pin); 126 } else { 127 if (len != -1) 128 usage(); 129 130 strncpy((char *)rp.pin, pin, HCI_PIN_SIZE); 131 } 132 133 s = socket(PF_LOCAL, SOCK_STREAM, 0); 134 if (s < 0) 135 err(EXIT_FAILURE, "socket"); 136 137 if (connect(s, (struct sockaddr *)&un, sizeof(un)) < 0) 138 err(EXIT_FAILURE, "connect(\"%s\")", un.sun_path); 139 140 if (send(s, &rp, sizeof(rp), 0) != sizeof(rp)) 141 err(EXIT_FAILURE, "send"); 142 143 close(s); 144 exit(EXIT_SUCCESS); 145 } 146 147 void 148 usage(void) 149 { 150 151 fprintf(stderr, 152 "usage: %s [-d device] [-s socket] {-p pin | -r [-l len]} -a addr\n" 153 "", getprogname()); 154 155 exit(EXIT_FAILURE); 156 } 157