xref: /freebsd/lib/libbluetooth/dev.c (revision b3e76948)
1 /*
2  * dev.c
3  */
4 
5 /*-
6  * SPDX-License-Identifier: BSD-2-Clause
7  *
8  * Copyright (c) 2009 Maksim Yevmenkin <m_evmenkin@yahoo.com>
9  * All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  */
32 
33 #define L2CAP_SOCKET_CHECKED
34 #include <bluetooth.h>
35 #include <stdio.h>
36 #include <string.h>
37 
38 struct bt_devaddr_match_arg
39 {
40 	char		devname[HCI_DEVNAME_SIZE];
41 	bdaddr_t const	*bdaddr;
42 };
43 
44 static bt_devenum_cb_t	bt_devaddr_match;
45 
46 int
bt_devaddr(char const * devname,bdaddr_t * addr)47 bt_devaddr(char const *devname, bdaddr_t *addr)
48 {
49 	struct bt_devinfo	di;
50 
51 	strlcpy(di.devname, devname, sizeof(di.devname));
52 
53 	if (bt_devinfo(&di) < 0)
54 		return (0);
55 
56 	if (addr != NULL)
57 		bdaddr_copy(addr, &di.bdaddr);
58 
59 	return (1);
60 }
61 
62 int
bt_devname(char * devname,bdaddr_t const * addr)63 bt_devname(char *devname, bdaddr_t const *addr)
64 {
65 	struct bt_devaddr_match_arg	arg;
66 
67 	memset(&arg, 0, sizeof(arg));
68 	arg.bdaddr = addr;
69 
70 	if (bt_devenum(&bt_devaddr_match, &arg) < 0)
71 		return (0);
72 
73 	if (arg.devname[0] == '\0') {
74 		errno = ENXIO;
75 		return (0);
76 	}
77 
78 	if (devname != NULL)
79 		strlcpy(devname, arg.devname, HCI_DEVNAME_SIZE);
80 
81 	return (1);
82 }
83 
84 static int
bt_devaddr_match(int s,struct bt_devinfo const * di,void * arg)85 bt_devaddr_match(int s, struct bt_devinfo const *di, void *arg)
86 {
87 	struct bt_devaddr_match_arg	*m = (struct bt_devaddr_match_arg *)arg;
88 
89 	if (!bdaddr_same(&di->bdaddr, m->bdaddr))
90 		return (0);
91 
92 	strlcpy(m->devname, di->devname, sizeof(m->devname));
93 
94 	return (1);
95 }
96 
97