1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/*
* Copyright (c) 2010-2016 Isode Limited.
* All rights reserved.
* See the COPYING file for more information.
*/
#pragma once
#pragma GCC diagnostic ignored "-Wold-style-cast"
#include <string>
#include <Swiften/LinkLocal/DNSSD/Bonjour/BonjourQuery.h>
#include <Swiften/LinkLocal/DNSSD/DNSSDResolveHostnameQuery.h>
#include <Swiften/EventLoop/EventLoop.h>
#include <Swiften/Network/HostAddress.h>
#include <boost/numeric/conversion/cast.hpp>
#include <netinet/in.h>
namespace Swift {
class BonjourQuerier;
class BonjourResolveHostnameQuery : public DNSSDResolveHostnameQuery, public BonjourQuery {
public:
BonjourResolveHostnameQuery(const std::string& hostname, int interfaceIndex, std::shared_ptr<BonjourQuerier> querier, EventLoop* eventLoop) : BonjourQuery(querier, eventLoop) {
DNSServiceErrorType result = DNSServiceGetAddrInfo(
&sdRef, 0, boost::numeric_cast<unsigned int>(interfaceIndex), kDNSServiceProtocol_IPv4,
hostname.c_str(),
&BonjourResolveHostnameQuery::handleHostnameResolvedStatic, this);
if (result != kDNSServiceErr_NoError) {
sdRef = nullptr;
}
}
//void DNSSDResolveHostnameQuery::run() {
void run() {
if (sdRef) {
BonjourQuery::run();
}
else {
eventLoop->postEvent(boost::bind(boost::ref(onHostnameResolved), boost::optional<HostAddress>()), shared_from_this());
}
}
void finish() {
BonjourQuery::finish();
}
private:
static void handleHostnameResolvedStatic(DNSServiceRef, DNSServiceFlags, uint32_t, DNSServiceErrorType errorCode, const char*, const struct sockaddr *address, uint32_t, void *context) {
static_cast<BonjourResolveHostnameQuery*>(context)->handleHostnameResolved(errorCode, address);
}
void handleHostnameResolved(DNSServiceErrorType errorCode, const struct sockaddr *rawAddress) {
if (errorCode) {
eventLoop->postEvent(
boost::bind(boost::ref(onHostnameResolved),
boost::optional<HostAddress>()),
shared_from_this());
}
else {
assert(rawAddress->sa_family == AF_INET);
const sockaddr_in* sa = reinterpret_cast<const sockaddr_in*>(rawAddress);
uint32_t address = ntohl(sa->sin_addr.s_addr);
eventLoop->postEvent(boost::bind(
boost::ref(onHostnameResolved),
HostAddress(reinterpret_cast<unsigned char*>(&address), 4)),
shared_from_this());
}
}
};
}
|
Swift