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mdns_priv.h
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1 /**
2  * @file
3  * MDNS responder private definitions
4  */
5 
6  /*
7  * Copyright (c) 2015 Verisure Innovation AB
8  * All rights reserved.
9  *
10  * Redistribution and use in source and binary forms, with or without modification,
11  * are permitted provided that the following conditions are met:
12  *
13  * 1. Redistributions of source code must retain the above copyright notice,
14  * this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright notice,
16  * this list of conditions and the following disclaimer in the documentation
17  * and/or other materials provided with the distribution.
18  * 3. The name of the author may not be used to endorse or promote products
19  * derived from this software without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
22  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
23  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
24  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
26  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
29  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
30  * OF SUCH DAMAGE.
31  *
32  * This file is part of the lwIP TCP/IP stack.
33  *
34  * Author: Erik Ekman <erik@kryo.se>
35  *
36  */
37 #ifndef LWIP_HDR_MDNS_PRIV_H
38 #define LWIP_HDR_MDNS_PRIV_H
39 
40 #include "lwip/apps/mdns_opts.h"
41 #include "lwip/pbuf.h"
42 
43 #ifdef __cplusplus
44 extern "C" {
45 #endif
46 
47 #if LWIP_MDNS_RESPONDER
48 
49 /* Domain struct and methods - visible for unit tests */
50 
51 #define MDNS_DOMAIN_MAXLEN 256
52 #define MDNS_READNAME_ERROR 0xFFFF
53 
54 struct mdns_domain {
55  /* Encoded domain name */
56  u8_t name[MDNS_DOMAIN_MAXLEN];
57  /* Total length of domain name, including zero */
58  u16_t length;
59  /* Set if compression of this domain is not allowed */
60  u8_t skip_compression;
61 };
62 
63 err_t mdns_domain_add_label(struct mdns_domain *domain, const char *label, u8_t len);
64 u16_t mdns_readname(struct pbuf *p, u16_t offset, struct mdns_domain *domain);
65 int mdns_domain_eq(struct mdns_domain *a, struct mdns_domain *b);
66 u16_t mdns_compress_domain(struct pbuf *pbuf, u16_t *offset, struct mdns_domain *domain);
67 
68 #endif /* LWIP_MDNS_RESPONDER */
69 
70 #ifdef __cplusplus
71 }
72 #endif
73 
74 #endif /* LWIP_HDR_MDNS_PRIV_H */
pbuf
Main packet buffer struct.
Definition: ppp_service_if.h:136
pbuf.h
pbuf API
mdns_opts.h
MDNS responder.
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