include/boost/corosio/native/detail/validate_fd.hpp
90.9% Lines (20/22)
100.0% List of functions (1/1)
66.7% Branches (16/24)
Functions (1)
Function
Calls
Lines
Branches
Blocks
boost::corosio::detail::validate_socket_fd(int, int, bool)
:39
272x
90.9%
66.7%
78.0%
| Line | Branch | TLA | Hits | Source Code |
|---|---|---|---|---|
| 1 | // | |||
| 2 | // Copyright (c) 2026 Steve Gerbino | |||
| 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 | #ifndef BOOST_COROSIO_NATIVE_DETAIL_VALIDATE_FD_HPP | |||
| 11 | #define BOOST_COROSIO_NATIVE_DETAIL_VALIDATE_FD_HPP | |||
| 12 | ||||
| 13 | #include <boost/corosio/detail/platform.hpp> | |||
| 14 | ||||
| 15 | #if BOOST_COROSIO_POSIX | |||
| 16 | ||||
| 17 | #include <boost/corosio/native/detail/make_err.hpp> | |||
| 18 | ||||
| 19 | #include <cerrno> | |||
| 20 | #include <system_error> | |||
| 21 | ||||
| 22 | #include <sys/socket.h> | |||
| 23 | ||||
| 24 | namespace boost::corosio::detail { | |||
| 25 | ||||
| 26 | /** Validate a caller-supplied socket fd for adoption. | |||
| 27 | ||||
| 28 | Non-mutating: interrogates the fd without changing any of its | |||
| 29 | flags, so a rejected fd goes back to the caller untouched. | |||
| 30 | ||||
| 31 | @param fd The descriptor to validate. | |||
| 32 | @param expected_type `SOCK_STREAM` or `SOCK_DGRAM`. | |||
| 33 | @param is_ip Accept `AF_INET`/`AF_INET6` when true, `AF_UNIX` | |||
| 34 | when false. | |||
| 35 | @return Empty on success; `EBADF`, `EAFNOSUPPORT`, `EPROTOTYPE`, | |||
| 36 | or the `errno` reported by the interrogating call. | |||
| 37 | */ | |||
| 38 | inline std::error_code | |||
| 39 | 272x | validate_socket_fd(int fd, int expected_type, bool is_ip) noexcept | ||
| 40 | { | |||
| 41 |
2/2✓ Branch 0 taken 258 times.
✓ Branch 1 taken 14 times.
|
272x | if (fd < 0) | |
| 42 | 14x | return make_err(EBADF); | ||
| 43 | ||||
| 44 | 258x | sockaddr_storage st{}; | ||
| 45 | 258x | socklen_t st_len = sizeof(st); | ||
| 46 |
2/4✓ Branch 0 taken 258 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 258 times.
|
258x | if (::getsockname(fd, reinterpret_cast<sockaddr*>(&st), &st_len) != 0) | |
| 47 | ✗ | return make_err(errno); | ||
| 48 |
2/2✓ Branch 0 taken 38 times.
✓ Branch 1 taken 220 times.
|
258x | if (is_ip) | |
| 49 | { | |||
| 50 |
4/4✓ Branch 0 taken 12 times.
✓ Branch 1 taken 26 times.
✓ Branch 2 taken 6 times.
✓ Branch 3 taken 6 times.
|
38x | if (st.ss_family != AF_INET && st.ss_family != AF_INET6) | |
| 51 | 6x | return make_err(EAFNOSUPPORT); | ||
| 52 | 32x | } | ||
| 53 |
2/2✓ Branch 0 taken 2 times.
✓ Branch 1 taken 218 times.
|
220x | else if (st.ss_family != AF_UNIX) | |
| 54 | { | |||
| 55 | 2x | return make_err(EAFNOSUPPORT); | ||
| 56 | } | |||
| 57 | ||||
| 58 | 250x | int sock_type = 0; | ||
| 59 | 250x | socklen_t opt_len = sizeof(sock_type); | ||
| 60 |
2/4✓ Branch 0 taken 250 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 250 times.
|
250x | if (::getsockopt(fd, SOL_SOCKET, SO_TYPE, | |
| 61 | 250x | &sock_type, &opt_len) != 0) | ||
| 62 | ✗ | return make_err(errno); | ||
| 63 |
2/2✓ Branch 0 taken 18 times.
✓ Branch 1 taken 232 times.
|
250x | if (sock_type != expected_type) | |
| 64 | 18x | return make_err(EPROTOTYPE); | ||
| 65 | ||||
| 66 | 232x | return {}; | ||
| 67 | 272x | } | ||
| 68 | ||||
| 69 | } // namespace boost::corosio::detail | |||
| 70 | ||||
| 71 | #endif // BOOST_COROSIO_POSIX | |||
| 72 | ||||
| 73 | #endif // BOOST_COROSIO_NATIVE_DETAIL_VALIDATE_FD_HPP | |||
| 74 |