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23e7e3ae JVH |
1 | /** |
2 | * Copyright (C) 2011-2012 Juho Vähä-Herttua | |
3 | * | |
4 | * This library is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU Lesser General Public | |
6 | * License as published by the Free Software Foundation; either | |
7 | * version 2.1 of the License, or (at your option) any later version. | |
8 | * | |
9 | * This library is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | * Lesser General Public License for more details. | |
13 | */ | |
14 | ||
2340bcd3 JVH |
15 | #include <stdlib.h> |
16 | ||
17 | #include "dnssd.h" | |
18 | #include "dnssdint.h" | |
19 | #include "global.h" | |
20 | #include "utils.h" | |
21 | ||
22 | #import <Foundation/Foundation.h> | |
23 | ||
24 | #define MAX_SERVNAME 256 | |
25 | ||
26 | struct dnssd_s { | |
27 | char hwaddr[MAX_HWADDR_LEN]; | |
28 | int hwaddrlen; | |
29 | ||
30 | NSNetService *raopService; | |
31 | NSNetService *airplayService; | |
32 | }; | |
33 | ||
34 | dnssd_t * | |
35 | dnssd_init(const char *hwaddr, int hwaddrlen, int *error) | |
36 | { | |
37 | dnssd_t *dnssd; | |
38 | ||
39 | if (error) *error = DNSSD_ERROR_NOERROR; | |
40 | if (hwaddrlen > MAX_HWADDR_LEN) { | |
41 | if (error) *error = DNSSD_ERROR_HWADDRLEN; | |
42 | return NULL; | |
43 | } | |
44 | ||
45 | dnssd = calloc(1, sizeof(dnssd_t)); | |
46 | if (!dnssd) { | |
47 | if (error) *error = DNSSD_ERROR_OUTOFMEM; | |
48 | return NULL; | |
49 | } | |
50 | memcpy(dnssd->hwaddr, hwaddr, hwaddrlen); | |
51 | dnssd->hwaddrlen = hwaddrlen; | |
52 | ||
53 | return dnssd; | |
54 | } | |
55 | ||
56 | void | |
57 | dnssd_destroy(dnssd_t *dnssd) | |
58 | { | |
59 | free(dnssd); | |
60 | } | |
61 | ||
62 | int | |
63 | dnssd_register_raop(dnssd_t *dnssd, const char *name, unsigned short port) | |
64 | { | |
65 | char hwaddrstr[MAX_SERVNAME]; | |
66 | NSString *serviceString; | |
67 | NSMutableDictionary *txtDict; | |
68 | NSData *txtData; | |
69 | int ret; | |
70 | ||
71 | assert(dnssd); | |
72 | ||
73 | if (dnssd->raopService != nil) { | |
74 | return -1; | |
75 | } | |
76 | ||
77 | /* Convert the hardware address to string */ | |
78 | ret = utils_hwaddr_raop(hwaddrstr, sizeof(hwaddrstr), dnssd->hwaddr, dnssd->hwaddrlen); | |
79 | if (ret < 0) { | |
80 | return -2; | |
81 | } | |
82 | serviceString = [NSString stringWithFormat:@"%s@%s", hwaddrstr, name]; | |
83 | ||
84 | txtDict = [NSMutableDictionary dictionaryWithCapacity:0]; | |
85 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_TXTVERS] forKey:@"txtvers"]; | |
86 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_CH] forKey:@"ch"]; | |
87 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_CN] forKey:@"cn"]; | |
88 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_ET] forKey:@"et"]; | |
89 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_SV] forKey:@"sv"]; | |
90 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_DA] forKey:@"da"]; | |
91 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_SR] forKey:@"sr"]; | |
92 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_SS] forKey:@"ss"]; | |
93 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_PW] forKey:@"pw"]; | |
94 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_VN] forKey:@"vn"]; | |
95 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_TP] forKey:@"tp"]; | |
96 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_MD] forKey:@"md"]; | |
97 | [txtDict setValue:[NSString stringWithUTF8String:GLOBAL_VERSION] forKey:@"vs"]; | |
98 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_AM] forKey:@"am"]; | |
99 | [txtDict setValue:[NSString stringWithUTF8String:RAOP_SF] forKey:@"sf"]; | |
100 | txtData = [NSNetService dataFromTXTRecordDictionary:txtDict]; | |
101 | ||
102 | /* Create the service and publish it */ | |
103 | dnssd->raopService = [[NSNetService alloc] initWithDomain:@"" | |
104 | type:@"_raop._tcp" | |
105 | name:serviceString | |
106 | port:port]; | |
107 | [dnssd->raopService setTXTRecordData:txtData]; | |
108 | [dnssd->raopService publish]; | |
109 | return 1; | |
110 | } | |
111 | ||
112 | int | |
113 | dnssd_register_airplay(dnssd_t *dnssd, const char *name, unsigned short port) | |
114 | { | |
115 | NSMutableDictionary *txtDict; | |
116 | NSData *txtData; | |
117 | char deviceid[3*MAX_HWADDR_LEN]; | |
118 | char features[16]; | |
119 | int ret; | |
120 | ||
121 | assert(dnssd); | |
122 | ||
123 | if (dnssd->airplayService != nil) { | |
124 | return -1; | |
125 | } | |
126 | ||
127 | /* Convert hardware address to string */ | |
128 | ret = utils_hwaddr_airplay(deviceid, sizeof(deviceid), dnssd->hwaddr, dnssd->hwaddrlen); | |
129 | if (ret < 0) { | |
130 | return -2; | |
131 | } | |
132 | ||
133 | memset(features, 0, sizeof(features)); | |
134 | snprintf(features, sizeof(features)-1, "0x%x", GLOBAL_FEATURES); | |
135 | ||
136 | txtDict = [NSMutableDictionary dictionaryWithCapacity:0]; | |
137 | [txtDict setValue:[NSString stringWithUTF8String:deviceid] forKey:@"deviceid"]; | |
138 | [txtDict setValue:[NSString stringWithUTF8String:features] forKey:@"features"]; | |
139 | [txtDict setValue:[NSString stringWithUTF8String:GLOBAL_MODEL] forKey:@"model"]; | |
140 | txtData = [NSNetService dataFromTXTRecordDictionary:txtDict]; | |
141 | ||
142 | /* Create the service and publish it */ | |
143 | dnssd->airplayService = [[NSNetService alloc] initWithDomain:@"" | |
144 | type:@"_airplay._tcp" | |
145 | name:[NSString stringWithUTF8String:name] | |
146 | port:port]; | |
147 | [dnssd->airplayService setTXTRecordData:txtData]; | |
148 | [dnssd->airplayService publish]; | |
149 | return 1; | |
150 | } | |
151 | ||
152 | void | |
153 | dnssd_unregister_raop(dnssd_t *dnssd) | |
154 | { | |
155 | assert(dnssd); | |
156 | ||
157 | if (dnssd->raopService == nil) { | |
158 | return; | |
159 | } | |
160 | ||
161 | [dnssd->raopService stop]; | |
162 | [dnssd->raopService release]; | |
163 | dnssd->raopService = nil; | |
164 | } | |
165 | ||
166 | void | |
167 | dnssd_unregister_airplay(dnssd_t *dnssd) | |
168 | { | |
169 | assert(dnssd); | |
170 | ||
171 | if (dnssd->airplayService == nil) { | |
172 | return; | |
173 | } | |
174 | ||
175 | [dnssd->airplayService stop]; | |
176 | [dnssd->airplayService release]; | |
177 | dnssd->airplayService = nil; | |
178 | } |