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.\"
.\" SPDX-License-Identifier: BSD-2-Clause
.\"
.\" Copyright (c) 2025 Chelsio Communications, Inc.
.\" Written by: John Baldwin <jhb@FreeBSD.org>
.\"
.Dd July 31, 2025
.Dt FREEBSD::ADDRINFO_UP 3
.Os
.Sh NAME
.Nm freebsd::addrinfo_up
.Nd std::unique_ptr specialization for lists of socket addresses
.Sh LIBRARY
.Lb libutil++
.Sh SYNOPSIS
.In libutil++.hh
.Ft using addrinfo_up = std::unique_ptr<addrinfo, freeaddrinfo_deleter>;
.Sh DESCRIPTION
This class is a specialization of
.Vt std::unique_ptr
for socket addresses returned by
.Xr getaddrinfo 3 .
When a list of socket addresses managed by an instance of this class is
disposed,
.Xr freeaddrinfo 3
is invoked to dispose of the list.
.Sh EXAMPLES
.Bd -literal -offset indent
freebsd::addrinfo_up
resolve_address(const char *address, const char *port)
{
struct addrinfo hints, *ai;
int error;
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
error = getaddrinfo(address, port, &hints, &ai);
if (error != 0)
return {};
return freebsd::addrinfo_up(ai);
}
.Ed
.Sh SEE ALSO
.Xr getaddrinfo 3
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