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
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/base/ip_endpoint.h"
#include "base/logging.h"
#include "base/string_number_conversions.h"
#include "base/sys_byteorder.h"
#if defined(OS_WIN)
#include <winsock2.h>
#elif defined(OS_POSIX)
#include <netinet/in.h>
#endif
namespace net {
namespace {
// By definition, socklen_t is large enough to hold both sizes.
const socklen_t kSockaddrInSize = sizeof(struct sockaddr_in);
const socklen_t kSockaddrIn6Size = sizeof(struct sockaddr_in6);
}
IPEndPoint::IPEndPoint() : port_(0) {}
IPEndPoint::~IPEndPoint() {}
IPEndPoint::IPEndPoint(const IPAddressNumber& address, int port)
: address_(address),
port_(port) {}
IPEndPoint::IPEndPoint(const IPEndPoint& endpoint) {
address_ = endpoint.address_;
port_ = endpoint.port_;
}
int IPEndPoint::GetFamily() const {
switch (address_.size()) {
case kIPv4AddressSize:
return AF_INET;
case kIPv6AddressSize:
return AF_INET6;
default:
NOTREACHED() << "Bad IP address";
return AF_UNSPEC;
}
}
bool IPEndPoint::ToSockAddr(struct sockaddr* address,
socklen_t* address_length) const {
DCHECK(address);
DCHECK(address_length);
switch (address_.size()) {
case kIPv4AddressSize: {
if (*address_length < kSockaddrInSize)
return false;
*address_length = kSockaddrInSize;
struct sockaddr_in* addr = reinterpret_cast<struct sockaddr_in*>(address);
memset(addr, 0, sizeof(struct sockaddr_in));
addr->sin_family = AF_INET;
addr->sin_port = base::HostToNet16(port_);
memcpy(&addr->sin_addr, &address_[0], kIPv4AddressSize);
break;
}
case kIPv6AddressSize: {
if (*address_length < kSockaddrIn6Size)
return false;
*address_length = kSockaddrIn6Size;
struct sockaddr_in6* addr6 =
reinterpret_cast<struct sockaddr_in6*>(address);
memset(addr6, 0, sizeof(struct sockaddr_in6));
addr6->sin6_family = AF_INET6;
addr6->sin6_port = base::HostToNet16(port_);
memcpy(&addr6->sin6_addr, &address_[0], kIPv6AddressSize);
break;
}
default:
return false;
}
return true;
}
bool IPEndPoint::FromSockAddr(const struct sockaddr* address,
socklen_t address_length) {
DCHECK(address);
switch (address->sa_family) {
case AF_INET: {
if (address_length < kSockaddrInSize)
return false;
const struct sockaddr_in* addr =
reinterpret_cast<const struct sockaddr_in*>(address);
port_ = base::NetToHost16(addr->sin_port);
const char* bytes = reinterpret_cast<const char*>(&addr->sin_addr);
address_.assign(&bytes[0], &bytes[kIPv4AddressSize]);
break;
}
case AF_INET6: {
if (address_length < kSockaddrIn6Size)
return false;
const struct sockaddr_in6* addr =
reinterpret_cast<const struct sockaddr_in6*>(address);
port_ = base::NetToHost16(addr->sin6_port);
const char* bytes = reinterpret_cast<const char*>(&addr->sin6_addr);
address_.assign(&bytes[0], &bytes[kIPv6AddressSize]);
break;
}
default:
return false;
}
return true;
}
std::string IPEndPoint::ToString() const {
SockaddrStorage storage;
if (!ToSockAddr(storage.addr, &storage.addr_len)) {
return std::string();
}
// TODO(szym): Don't use getnameinfo. http://crbug.com/126212
return NetAddressToStringWithPort(storage.addr, storage.addr_len);
}
std::string IPEndPoint::ToStringWithoutPort() const {
SockaddrStorage storage;
if (!ToSockAddr(storage.addr, &storage.addr_len)) {
return std::string();
}
// TODO(szym): Don't use getnameinfo. http://crbug.com/126212
return NetAddressToString(storage.addr, storage.addr_len);
}
bool IPEndPoint::operator<(const IPEndPoint& that) const {
// Sort IPv4 before IPv6.
if (address_.size() != that.address_.size()) {
return address_.size() < that.address_.size();
}
if (address_ != that.address_) {
return address_ < that.address_;
}
return port_ < that.port_;
}
bool IPEndPoint::operator==(const IPEndPoint& that) const {
return address_ == that.address_ && port_ == that.port_;
}
} // namespace net
|
