1 /* $NetBSD: devaddr.c,v 1.2 2006/08/28 08:24:39 plunky Exp $ */
2 /* $DragonFly: src/lib/libbluetooth/devaddr.c,v 1.1 2008/01/03 11:47:52 hasso Exp $ */
3
4 /*-
5 * Copyright (c) 2006 Itronix Inc.
6 * All rights reserved.
7 *
8 * Written by Iain Hibbert for Itronix Inc.
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 * 3. The name of Itronix Inc. may not be used to endorse
19 * or promote products derived from this software without specific
20 * prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
26 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
29 * ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGE.
33 */
34
35 #include <sys/ioctl.h>
36 #include <bluetooth.h>
37 #include <errno.h>
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <string.h>
41 #include <unistd.h>
42
43 int
bt_devaddr(const char * name,bdaddr_t * addr)44 bt_devaddr(const char *name, bdaddr_t *addr)
45 {
46 struct btreq btr;
47 bdaddr_t bdaddr;
48 int s, rv;
49
50 if (name == NULL) {
51 errno = EINVAL;
52 return 0;
53 }
54
55 if (addr == NULL)
56 addr = &bdaddr;
57
58 if (bt_aton(name, addr))
59 return bt_devname(NULL, addr);
60
61 memset(&btr, 0, sizeof(btr));
62 strlcpy(btr.btr_name, name, HCI_DEVNAME_SIZE);
63
64 s = socket(PF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI);
65 if (s == -1)
66 return 0;
67
68 rv = ioctl(s, SIOCGBTINFO, &btr);
69 close(s);
70
71 if (rv == -1)
72 return 0;
73
74 if ((btr.btr_flags & BTF_UP) == 0) {
75 errno = ENXIO;
76 return 0;
77 }
78
79 bdaddr_copy(addr, &btr.btr_bdaddr);
80 return 1;
81 }
82
83 int
bt_devname(char * name,const bdaddr_t * addr)84 bt_devname(char *name, const bdaddr_t *addr)
85 {
86 struct btreq btr;
87 int s, rv;
88
89 if (addr == NULL) {
90 errno = EINVAL;
91 return 0;
92 }
93
94 memset(&btr, 0, sizeof(btr));
95 bdaddr_copy(&btr.btr_bdaddr, addr);
96
97 s = socket(PF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI);
98 if (s == -1)
99 return 0;
100
101 rv = ioctl(s, SIOCGBTINFOA, &btr);
102 close(s);
103
104 if (rv == -1)
105 return 0;
106
107 if ((btr.btr_flags & BTF_UP) == 0) {
108 errno = ENXIO;
109 return 0;
110 }
111
112 if (name != NULL)
113 strlcpy(name, btr.btr_name, HCI_DEVNAME_SIZE);
114
115 return 1;
116 }
117