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
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
#include "qpid/sys/SocketAddress.h"
#include "qpid/Exception.h"
#include "qpid/Msg.h"
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <string.h>
namespace qpid {
namespace sys {
SocketAddress::SocketAddress(const std::string& host0, const std::string& port0) :
host(host0),
port(port0),
addrInfo(0),
currentAddrInfo(0)
{
}
SocketAddress::SocketAddress(const SocketAddress& sa) :
host(sa.host),
port(sa.port),
addrInfo(0),
currentAddrInfo(0)
{
}
SocketAddress& SocketAddress::operator=(const SocketAddress& sa)
{
SocketAddress temp(sa);
std::swap(temp, *this);
return *this;
}
SocketAddress::~SocketAddress()
{
if (addrInfo) {
::freeaddrinfo(addrInfo);
}
}
std::string SocketAddress::asString(::sockaddr const * const addr, size_t addrlen)
{
char servName[NI_MAXSERV];
char dispName[NI_MAXHOST];
if (int rc=::getnameinfo(addr, addrlen,
dispName, sizeof(dispName),
servName, sizeof(servName),
NI_NUMERICHOST | NI_NUMERICSERV) != 0)
throw qpid::Exception(QPID_MSG(gai_strerror(rc)));
std::string s;
switch (addr->sa_family) {
case AF_INET: s += dispName; break;
case AF_INET6: s += "["; s += dispName; s+= "]"; break;
default: throw Exception(QPID_MSG("Unexpected socket type"));
}
s += ":";
s += servName;
return s;
}
uint16_t SocketAddress::getPort(::sockaddr const * const addr)
{
switch (addr->sa_family) {
case AF_INET: return ntohs(((const ::sockaddr_in*)(const void*)addr)->sin_port);
case AF_INET6: return ntohs(((const ::sockaddr_in6*)(const void*)addr)->sin6_port);
default:throw Exception(QPID_MSG("Unexpected socket type"));
}
}
std::string SocketAddress::asString(bool numeric) const
{
if (!numeric)
return host + ":" + port;
// Canonicalise into numeric id
const ::addrinfo& ai = getAddrInfo(*this);
return asString(ai.ai_addr, ai.ai_addrlen);
}
bool SocketAddress::nextAddress() {
bool r = currentAddrInfo->ai_next != 0;
if (r)
currentAddrInfo = currentAddrInfo->ai_next;
return r;
}
void SocketAddress::setAddrInfoPort(uint16_t port) {
if (!currentAddrInfo) return;
::addrinfo& ai = *currentAddrInfo;
switch (ai.ai_family) {
case AF_INET: ((::sockaddr_in*)(void*)ai.ai_addr)->sin_port = htons(port); return;
case AF_INET6:((::sockaddr_in6*)(void*)ai.ai_addr)->sin6_port = htons(port); return;
default: throw Exception(QPID_MSG("Unexpected socket type"));
}
}
const ::addrinfo& getAddrInfo(const SocketAddress& sa)
{
if (!sa.addrInfo) {
::addrinfo hints;
::memset(&hints, 0, sizeof(hints));
hints.ai_flags = AI_ADDRCONFIG; // Only use protocols that we have configured interfaces for
hints.ai_family = AF_UNSPEC; // Allow both IPv4 and IPv6
hints.ai_socktype = SOCK_STREAM;
const char* node = 0;
if (sa.host.empty()) {
hints.ai_flags |= AI_PASSIVE;
} else {
node = sa.host.c_str();
}
const char* service = sa.port.empty() ? "0" : sa.port.c_str();
int n = ::getaddrinfo(node, service, &hints, &sa.addrInfo);
if (n != 0)
throw Exception(QPID_MSG("Cannot resolve " << sa.asString(false) << ": " << ::gai_strerror(n)));
sa.currentAddrInfo = sa.addrInfo;
}
return *sa.currentAddrInfo;
}
}}
|
