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
|
#pragma once
#include <util/network/sock.h>
#include "http.h"
class TInet64StreamSocket: public TStreamSocket {
protected:
TInet64StreamSocket(const TInet64StreamSocket& parent, SOCKET fd)
: TStreamSocket(fd)
, AF(parent.AF)
{
}
public:
TInet64StreamSocket(int af = {}) {
CreateSocket(af);
}
std::shared_ptr<ISockAddr> MakeAddress(const TString& address, int port) {
if (!address) {
if (AF == AF_INET6) {
return std::make_shared<TSockAddrInet6>("::", port);
} else {
return std::make_shared<TSockAddrInet>(INADDR_ANY, port);
}
}
if (NHttp::IsIPv6(address)) {
return std::make_shared<TSockAddrInet6>(address.data(), port);
} else if (NHttp::IsIPv4(address)) {
return std::make_shared<TSockAddrInet>(address.data(), port);
}
struct addrinfo hints = {
.ai_flags = AI_PASSIVE,
.ai_family = AF,
.ai_socktype = SOCK_STREAM,
};
struct addrinfo* gai_res = nullptr;
int gai_ret = getaddrinfo(address.data(), nullptr, &hints, &gai_res);
std::shared_ptr<ISockAddr> result;
if (gai_ret == 0 && gai_res->ai_addr) {
switch (gai_res->ai_addr->sa_family) {
case AF_INET6: {
std::shared_ptr<TSockAddrInet6> resultIp6 = std::make_shared<TSockAddrInet6>();
if (resultIp6->Size() >= gai_res->ai_addrlen) {
memcpy(resultIp6->SockAddr(), gai_res->ai_addr, gai_res->ai_addrlen);
resultIp6->SetPort(port);
result = std::move(resultIp6);
}
}
break;
case AF_INET: {
std::shared_ptr<TSockAddrInet> resultIp4 = std::make_shared<TSockAddrInet>();
if (resultIp4->Size() >= gai_res->ai_addrlen) {
memcpy(resultIp4->SockAddr(), gai_res->ai_addr, gai_res->ai_addrlen);
resultIp4->SetPort(port);
result = std::move(resultIp4);
}
}
break;
}
}
if (gai_res) {
freeaddrinfo(gai_res);
}
if (result) {
return result;
}
throw yexception() << "Unable to resolve address " << address;
}
static int GuessAddressFamily(const TString& address) {
if (!address) {
return 0;
}
if (NHttp::IsIPv6(address)) {
return AF_INET6;
} else if (NHttp::IsIPv4(address)) {
return AF_INET;
}
struct addrinfo hints = {
.ai_flags = AI_PASSIVE,
.ai_family = 0,
.ai_socktype = SOCK_STREAM,
};
int result = 0;
struct addrinfo* gai_res = nullptr;
int gai_ret = getaddrinfo(address.data(), nullptr, &hints, &gai_res);
if (gai_ret == 0 && gai_res->ai_addr) {
switch (gai_res->ai_addr->sa_family) {
case AF_INET:
case AF_INET6:
result = gai_res->ai_addr->sa_family;
break;
}
}
if (gai_res) {
freeaddrinfo(gai_res);
}
return result;
}
static std::shared_ptr<ISockAddr> MakeAddress(const sockaddr_storage& storage) {
std::shared_ptr<ISockAddr> addr;
switch (storage.ss_family) {
case AF_INET:
addr = std::make_shared<TSockAddrInet>();
break;
case AF_INET6:
addr = std::make_shared<TSockAddrInet6>();
break;
}
if (addr) {
memcpy(addr->SockAddr(), &storage, addr->Size());
}
return addr;
}
std::optional<TInet64StreamSocket> Accept(std::shared_ptr<ISockAddr>& acceptedAddr) {
sockaddr_storage addrStorage = {};
socklen_t addrLen = sizeof(addrStorage);
SOCKET s = accept((SOCKET)*this, reinterpret_cast<sockaddr*>(&addrStorage), &addrLen);
if (s == INVALID_SOCKET) {
return {};
}
acceptedAddr = MakeAddress(addrStorage);
return TInet64StreamSocket(*this, s);
}
protected:
int AF = AF_UNSPEC;
void CreateSocket(int af) {
SOCKET s;
if (af == 0) {
s = socket(AF = AF_INET6, SOCK_STREAM, 0);
if (s < 0) {
s = socket(AF = AF_INET, SOCK_STREAM, 0);
}
} else {
s = socket(AF = af, SOCK_STREAM, 0);
}
if (AF == AF_INET6) {
SetSockOpt(s, SOL_SOCKET, IPV6_V6ONLY, (int)false);
}
TSocketHolder sock(s);
sock.Swap(*this);
}
};
|
