aboutsummaryrefslogtreecommitdiffstats
path: root/lib/asio/ip/icmp.hpp
blob: 92e1953f301e3f2670800880d6e2c0b5432de971 (plain)
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
//
// ip/icmp.hpp
// ~~~~~~~~~~~
//
// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//

#ifndef ASIO_IP_ICMP_HPP
#define ASIO_IP_ICMP_HPP

#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)

#include "asio/detail/config.hpp"
#include "asio/detail/socket_types.hpp"
#include "asio/basic_raw_socket.hpp"
#include "asio/ip/basic_endpoint.hpp"
#include "asio/ip/basic_resolver.hpp"
#include "asio/ip/basic_resolver_iterator.hpp"
#include "asio/ip/basic_resolver_query.hpp"

#include "asio/detail/push_options.hpp"

namespace asio {
namespace ip {

/// Encapsulates the flags needed for ICMP.
/**
 * The asio::ip::icmp class contains flags necessary for ICMP sockets.
 *
 * @par Thread Safety
 * @e Distinct @e objects: Safe.@n
 * @e Shared @e objects: Safe.
 *
 * @par Concepts:
 * Protocol, InternetProtocol.
 */
class icmp
{
public:
  /// The type of a ICMP endpoint.
  typedef basic_endpoint<icmp> endpoint;

  /// Construct to represent the IPv4 ICMP protocol.
  static icmp v4()
  {
    return icmp(ASIO_OS_DEF(IPPROTO_ICMP),
        ASIO_OS_DEF(AF_INET));
  }

  /// Construct to represent the IPv6 ICMP protocol.
  static icmp v6()
  {
    return icmp(ASIO_OS_DEF(IPPROTO_ICMPV6),
        ASIO_OS_DEF(AF_INET6));
  }

  /// Obtain an identifier for the type of the protocol.
  int type() const
  {
    return ASIO_OS_DEF(SOCK_RAW);
  }

  /// Obtain an identifier for the protocol.
  int protocol() const
  {
    return protocol_;
  }

  /// Obtain an identifier for the protocol family.
  int family() const
  {
    return family_;
  }

  /// The ICMP socket type.
  typedef basic_raw_socket<icmp> socket;

  /// The ICMP resolver type.
  typedef basic_resolver<icmp> resolver;

  /// Compare two protocols for equality.
  friend bool operator==(const icmp& p1, const icmp& p2)
  {
    return p1.protocol_ == p2.protocol_ && p1.family_ == p2.family_;
  }

  /// Compare two protocols for inequality.
  friend bool operator!=(const icmp& p1, const icmp& p2)
  {
    return p1.protocol_ != p2.protocol_ || p1.family_ != p2.family_;
  }

private:
  // Construct with a specific family.
  explicit icmp(int protocol_id, int protocol_family)
    : protocol_(protocol_id),
      family_(protocol_family)
  {
  }

  int protocol_;
  int family_;
};

} // namespace ip
} // namespace asio

#include "asio/detail/pop_options.hpp"

#endif // ASIO_IP_ICMP_HPP