src/corosio/src/endpoint.cpp
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boost::corosio::detect_endpoint_format(std::__1::basic_string_view<char, std::__1::char_traits<char>>)
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boost::corosio::(anonymous namespace)::parse_port(std::__1::basic_string_view<char, std::__1::char_traits<char>>, unsigned short&)
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boost::corosio::parse_endpoint_impl(std::__1::basic_string_view<char, std::__1::char_traits<char>>, boost::corosio::endpoint&)
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boost::corosio::make_endpoint(std::__1::basic_string_view<char, std::__1::char_traits<char>>)
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| Line | Branch | TLA | Hits | Source Code |
|---|---|---|---|---|
| 1 | // | |||
| 2 | // Copyright (c) 2026 Vinnie Falco ([email protected]) | |||
| 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/cppalliance/corosio | |||
| 8 | // | |||
| 9 | ||||
| 10 | #include <boost/corosio/endpoint.hpp> | |||
| 11 | ||||
| 12 | #include <charconv> | |||
| 13 | ||||
| 14 | namespace boost::corosio { | |||
| 15 | ||||
| 16 | endpoint_format | |||
| 17 | 57x | detect_endpoint_format(std::string_view s) noexcept | ||
| 18 | { | |||
| 19 |
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57x | if (s.empty()) | |
| 20 | 1x | return endpoint_format::ipv4_no_port; | ||
| 21 | ||||
| 22 | // Bracketed IPv6 | |||
| 23 |
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56x | if (s[0] == '[') | |
| 24 | 20x | return endpoint_format::ipv6_bracketed; | ||
| 25 | ||||
| 26 | // Count colons | |||
| 27 | 36x | std::size_t colon_count = 0; | ||
| 28 |
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410x | for (char c : s) | |
| 29 | { | |||
| 30 |
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374x | if (c == ':') | |
| 31 | 36x | ++colon_count; | ||
| 32 | } | |||
| 33 | ||||
| 34 |
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36x | if (colon_count == 0) | |
| 35 | 10x | return endpoint_format::ipv4_no_port; | ||
| 36 |
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26x | if (colon_count == 1) | |
| 37 | 19x | return endpoint_format::ipv4_with_port; | ||
| 38 | 7x | return endpoint_format::ipv6_no_port; | ||
| 39 | 57x | } | ||
| 40 | ||||
| 41 | namespace { | |||
| 42 | ||||
| 43 | // Parse port number from string | |||
| 44 | // Returns true on success | |||
| 45 | bool | |||
| 46 | 27x | parse_port(std::string_view s, std::uint16_t& port) noexcept | ||
| 47 | { | |||
| 48 |
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27x | if (s.empty()) | |
| 49 | 4x | return false; | ||
| 50 | ||||
| 51 | // No leading zeros allowed (except "0" itself) | |||
| 52 |
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23x | if (s.size() > 1 && s[0] == '0') | |
| 53 | 2x | return false; | ||
| 54 | ||||
| 55 | 21x | unsigned long val = 0; | ||
| 56 |
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21x | auto [ptr, ec] = std::from_chars(s.data(), s.data() + s.size(), val); | |
| 57 |
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21x | if (ec != std::errc{} || ptr != s.data() + s.size()) | |
| 58 | 6x | return false; | ||
| 59 |
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15x | if (val > 65535) | |
| 60 | 4x | return false; | ||
| 61 | ||||
| 62 | 11x | port = static_cast<std::uint16_t>(val); | ||
| 63 | 11x | return true; | ||
| 64 | 27x | } | ||
| 65 | ||||
| 66 | } // namespace | |||
| 67 | ||||
| 68 | static std::error_code | |||
| 69 | 52x | parse_endpoint_impl(std::string_view s, endpoint& ep) noexcept | ||
| 70 | { | |||
| 71 |
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52x | if (s.empty()) | |
| 72 | 2x | return std::make_error_code(std::errc::invalid_argument); | ||
| 73 | ||||
| 74 | 50x | auto fmt = detect_endpoint_format(s); | ||
| 75 | ||||
| 76 |
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50x | switch (fmt) | |
| 77 | { | |||
| 78 | case endpoint_format::ipv4_no_port: | |||
| 79 | { | |||
| 80 | 9x | auto [ec, addr] = make_ipv4_address(s); | ||
| 81 |
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9x | if (ec) | |
| 82 | 7x | return ec; | ||
| 83 | 2x | ep = endpoint(addr, 0); | ||
| 84 | 2x | return {}; | ||
| 85 | } | |||
| 86 | ||||
| 87 | case endpoint_format::ipv4_with_port: | |||
| 88 | { | |||
| 89 | // Find the colon separating address and port | |||
| 90 | 18x | auto colon_pos = s.rfind(':'); | ||
| 91 |
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18x | if (colon_pos == std::string_view::npos) | |
| 92 | ✗ | return std::make_error_code(std::errc::invalid_argument); | ||
| 93 | ||||
| 94 |
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18x | auto addr_str = s.substr(0, colon_pos); | |
| 95 |
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18x | auto port_str = s.substr(colon_pos + 1); | |
| 96 | ||||
| 97 | 25x | auto [ec, addr] = make_ipv4_address(addr_str); | ||
| 98 |
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18x | if (ec) | |
| 99 | 1x | return ec; | ||
| 100 | ||||
| 101 | std::uint16_t port; | |||
| 102 |
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17x | if (!parse_port(port_str, port)) | |
| 103 | 10x | return std::make_error_code(std::errc::invalid_argument); | ||
| 104 | ||||
| 105 | 7x | ep = endpoint(addr, port); | ||
| 106 | 7x | return {}; | ||
| 107 | } | |||
| 108 | ||||
| 109 | case endpoint_format::ipv6_no_port: | |||
| 110 | { | |||
| 111 | 5x | auto [ec, addr] = make_ipv6_address(s); | ||
| 112 |
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5x | if (ec) | |
| 113 | 1x | return ec; | ||
| 114 | 4x | ep = endpoint(addr, 0); | ||
| 115 | 4x | return {}; | ||
| 116 | } | |||
| 117 | ||||
| 118 | case endpoint_format::ipv6_bracketed: | |||
| 119 | { | |||
| 120 | // Must start with '[' and contain ']' | |||
| 121 |
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18x | if (s.size() < 2 || s[0] != '[') | |
| 122 | 2x | return std::make_error_code(std::errc::invalid_argument); | ||
| 123 | ||||
| 124 | 16x | auto close_bracket = s.find(']'); | ||
| 125 |
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16x | if (close_bracket == std::string_view::npos) | |
| 126 | 2x | return std::make_error_code(std::errc::invalid_argument); | ||
| 127 | ||||
| 128 |
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14x | auto addr_str = s.substr(1, close_bracket - 1); | |
| 129 | ||||
| 130 | 20x | auto [ec, addr] = make_ipv6_address(addr_str); | ||
| 131 |
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14x | if (ec) | |
| 132 | 2x | return ec; | ||
| 133 | ||||
| 134 | 12x | std::uint16_t port = 0; | ||
| 135 |
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12x | if (close_bracket + 1 < s.size()) | |
| 136 | { | |||
| 137 | // There's something after ']' | |||
| 138 |
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10x | if (s[close_bracket + 1] != ':') | |
| 139 | ✗ | return std::make_error_code(std::errc::invalid_argument); | ||
| 140 | ||||
| 141 |
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10x | auto port_str = s.substr(close_bracket + 2); | |
| 142 |
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10x | if (!parse_port(port_str, port)) | |
| 143 | 6x | return std::make_error_code(std::errc::invalid_argument); | ||
| 144 | 4x | } | ||
| 145 | ||||
| 146 | 6x | ep = endpoint(addr, port); | ||
| 147 | 6x | return {}; | ||
| 148 | } | |||
| 149 | ||||
| 150 | default: | |||
| 151 | ✗ | return std::make_error_code(std::errc::invalid_argument); | ||
| 152 | } | |||
| 153 | 52x | } | ||
| 154 | ||||
| 155 | capy::io_result<endpoint> | |||
| 156 | 52x | make_endpoint(std::string_view s) noexcept | ||
| 157 | { | |||
| 158 | 52x | endpoint ep; | ||
| 159 |
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52x | if (auto ec = parse_endpoint_impl(s, ep)) | |
| 160 | 33x | return {ec, endpoint{}}; | ||
| 161 | 19x | return {std::error_code{}, ep}; | ||
| 162 | 52x | } | ||
| 163 | ||||
| 164 | } // namespace boost::corosio | |||
| 165 |