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1 | // | ||
2 | // Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com) | ||
3 | // | ||
4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
6 | // | ||
7 | // Official repository: https://github.com/boostorg/url | ||
8 | // | ||
9 | |||
10 | |||
11 | #include <boost/url/detail/config.hpp> | ||
12 | #include <boost/url/ipv4_address.hpp> | ||
13 | #include <boost/url/detail/except.hpp> | ||
14 | #include <boost/url/grammar/parse.hpp> | ||
15 | #include <boost/url/rfc/ipv4_address_rule.hpp> | ||
16 | #include <cstring> | ||
17 | |||
18 | namespace boost { | ||
19 | namespace urls { | ||
20 | |||
21 | 19 | ipv4_address:: | |
22 | ipv4_address( | ||
23 | 19 | uint_type addr) noexcept | |
24 | 19 | : addr_(addr) | |
25 | { | ||
26 | 19 | } | |
27 | |||
28 | 141 | ipv4_address:: | |
29 | ipv4_address( | ||
30 | 141 | bytes_type const& bytes) noexcept | |
31 | { | ||
32 | 141 | addr_ = | |
33 | 141 | (static_cast<unsigned long>(bytes[0]) << 24) | | |
34 | 141 | (static_cast<unsigned long>(bytes[1]) << 16) | | |
35 | 141 | (static_cast<unsigned long>(bytes[2]) << 8) | | |
36 | 141 | (static_cast<unsigned long>(bytes[3])); | |
37 | 141 | } | |
38 | |||
39 | 27 | ipv4_address:: | |
40 | ipv4_address( | ||
41 | 27 | core::string_view s) | |
42 | : ipv4_address( | ||
43 | 27 | parse_ipv4_address(s | |
44 |
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27 | ).value(BOOST_URL_POS)) |
45 | { | ||
46 | 26 | } | |
47 | |||
48 | auto | ||
49 | 75 | ipv4_address:: | |
50 | to_bytes() const noexcept -> | ||
51 | bytes_type | ||
52 | { | ||
53 | bytes_type bytes; | ||
54 | 75 | bytes[0] = (addr_ >> 24) & 0xff; | |
55 | 75 | bytes[1] = (addr_ >> 16) & 0xff; | |
56 | 75 | bytes[2] = (addr_ >> 8) & 0xff; | |
57 | 75 | bytes[3] = addr_ & 0xff; | |
58 | 75 | return bytes; | |
59 | } | ||
60 | |||
61 | auto | ||
62 | 54 | ipv4_address:: | |
63 | to_uint() const noexcept -> | ||
64 | uint_type | ||
65 | { | ||
66 | 54 | return addr_; | |
67 | } | ||
68 | |||
69 | core::string_view | ||
70 | 19 | ipv4_address:: | |
71 | to_buffer( | ||
72 | char* dest, | ||
73 | std::size_t dest_size) const | ||
74 | { | ||
75 |
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19 | if(dest_size < max_str_len) |
76 | 1 | detail::throw_length_error(); | |
77 | 18 | auto n = print_impl(dest); | |
78 | 18 | return core::string_view(dest, n); | |
79 | } | ||
80 | |||
81 | bool | ||
82 | 4 | ipv4_address:: | |
83 | is_loopback() const noexcept | ||
84 | { | ||
85 | 4 | return (to_uint() & 0xFF000000) == | |
86 | 4 | 0x7F000000; | |
87 | } | ||
88 | |||
89 | bool | ||
90 | 7 | ipv4_address:: | |
91 | is_unspecified() const noexcept | ||
92 | { | ||
93 | 7 | return to_uint() == 0; | |
94 | } | ||
95 | |||
96 | bool | ||
97 | 4 | ipv4_address:: | |
98 | is_multicast() const noexcept | ||
99 | { | ||
100 | 4 | return (to_uint() & 0xF0000000) == | |
101 | 4 | 0xE0000000; | |
102 | } | ||
103 | |||
104 | std::size_t | ||
105 | 29 | ipv4_address:: | |
106 | print_impl( | ||
107 | char* dest) const noexcept | ||
108 | { | ||
109 | 29 | auto const start = dest; | |
110 | auto const write = | ||
111 | 116 | []( char*& dest, | |
112 | unsigned char v) | ||
113 | { | ||
114 |
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116 | if(v >= 100) |
115 | { | ||
116 | 33 | *dest++ = '0' + | |
117 | 33 | v / 100; | |
118 | 33 | v %= 100; | |
119 | 33 | *dest++ = '0' + | |
120 | 33 | v / 10; | |
121 | 33 | v %= 10; | |
122 | } | ||
123 |
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83 | else if(v >= 10) |
124 | { | ||
125 | 3 | *dest++ = '0' + | |
126 | 3 | v / 10; | |
127 | 3 | v %= 10; | |
128 | } | ||
129 | 116 | *dest++ = '0' + v; | |
130 | 116 | }; | |
131 | 29 | auto const v = to_uint(); | |
132 | 29 | write(dest, (v >> 24) & 0xff); | |
133 | 29 | *dest++ = '.'; | |
134 | 29 | write(dest, (v >> 16) & 0xff); | |
135 | 29 | *dest++ = '.'; | |
136 | 29 | write(dest, (v >> 8) & 0xff); | |
137 | 29 | *dest++ = '.'; | |
138 | 29 | write(dest, (v ) & 0xff); | |
139 | 29 | return dest - start; | |
140 | } | ||
141 | |||
142 | void | ||
143 | 2 | ipv4_address:: | |
144 | to_string_impl( | ||
145 | string_token::arg& t) const | ||
146 | { | ||
147 | char buf[max_str_len]; | ||
148 | 2 | auto const n = print_impl(buf); | |
149 |
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2 | char* dest = t.prepare(n); |
150 | 2 | std::memcpy(dest, buf, n); | |
151 | 2 | } | |
152 | |||
153 | //------------------------------------------------ | ||
154 | |||
155 | auto | ||
156 | 127 | parse_ipv4_address( | |
157 | core::string_view s) noexcept -> | ||
158 | system::result<ipv4_address> | ||
159 | { | ||
160 | return grammar::parse( | ||
161 | 127 | s, ipv4_address_rule); | |
162 | } | ||
163 | |||
164 | } // urls | ||
165 | } // boost | ||
166 | |||
167 |