unpack_sockaddr_un

Extract the filesystem path from a packed sockaddr_un.

Synopsis

my ($path) = unpack_sockaddr_un($sockaddr);

What you get back

The sun_path field as a string, trimmed at the first NUL byte, or undef if the input is too short to be a sockaddr_un.

Examples

my ($path) = unpack_sockaddr_un(getsockname($sock));
print "listening on $path\n";

Edge cases

• Abstract Linux-namespace sockets have a leading NUL; the result is truncated at that first NUL, so callers that need the full abstract name must unpack the raw bytes themselves.

• Input shorter than 3 bytes yields undef.

Differences from upstream

Fully compatible with upstream Socket.

See also

• pack_sockaddr_un — reverse direction.