sockaddr_in#

Dual-mode shortcut: with two arguments it behaves like pack_sockaddr_in; with one argument it behaves like unpack_sockaddr_in.

Synopsis#

my $sin            = sockaddr_in($port, $packed_ipv4);
my ($port, $addr)  = sockaddr_in($sockaddr);

What you get back#

The same values as the underlying pack_sockaddr_in or unpack_sockaddr_in, depending on argument count.

Examples#

## Packing

connect($sock, sockaddr_in(80, inet_aton("127.0.0.1"))) or die $!;

## Unpacking

my ($port, $ip) = sockaddr_in(getpeername($sock));

Edge cases#

  • The dispatch is on argument count, not argument type. Calling with a single two-element list-in-scalar oddity will still take the unpack branch.

  • Prefer the explicit pack_sockaddr_in / unpack_sockaddr_in in new code; this name exists for compatibility with older Perl idioms.

Differences from upstream#

Fully compatible with upstream Socket.

See also#

  • pack_sockaddr_in, unpack_sockaddr_in — the explicit forms.

  • sockaddr_in6 — IPv6 counterpart with the same dual behaviour.