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use Socket;
$proto = getprotobyname('udp'); socket(Socket_Handle, PF_INET, SOCK_DGRAM, $proto); $iaddr = gethostbyname('hishost.com'); $port = getservbyname('time', 'udp'); $sin = sockaddr_in($port, $iaddr); send(Socket_Handle, 0, 0, $sin);
$proto = getprotobyname('tcp'); socket(Socket_Handle, PF_INET, SOCK_STREAM, $proto); $port = getservbyname('smtp'); $sin = sockaddr_in($port,inet_aton("127.1")); $sin = sockaddr_in(7,inet_aton("localhost")); $sin = sockaddr_in(7,INADDR_LOOPBACK); connect(Socket_Handle,$sin);
($port, $iaddr) = sockaddr_in(getpeername(Socket_Handle)); $peer_host = gethostbyaddr($iaddr, AF_INET); $peer_addr = inet_ntoa($iaddr);
$proto = getprotobyname('tcp'); socket(Socket_Handle, PF_UNIX, SOCK_STREAM, $proto); unlink('/tmp/usock'); $sun = sockaddr_un('/tmp/usock'); connect(Socket_Handle,$sun);
In addition, some structure manipulation functions are available:
inet_aton())
and
translates it into a string of the form 'd.d.d.d' where the 'd's are
numbers less than 256 (the normal readable four dotted number notation for
internet addresses).
Returns the 4-byte wildcard ip address which specifies any of the hosts ip
addresses. (A particular machine can have more than one ip address, each
address corresponding to a particular network interface. This wildcard
address allows you to bind to all of them simultaneously.) Normally
equivalent to inet_aton('0.0.0.0').
Returns the 4-byte 'this-lan' ip broadcast address. This can be useful for
some protocols to solicit information from all servers on the same LAN
cable. Normally equivalent to inet_aton('255.255.255.255').
Returns the 4-byte loopback address. Normally equivalent to
inet_aton('localhost').
Returns the 4-byte 'invalid' ip address. Normally equivalent to
inet_aton('255.255.255.255').
pack_sockaddr_in()
and unpack_sockaddr_in()
explicitly.
inet_aton()).
Returns the sockaddr_in structure with those
arguments packed in with AF_INET filled in. For internet domain sockets,
this structure is normally what you need for the arguments in
bind(),
connect(),
and send(),
and
is also returned by getpeername(),
getsockname()
and recv().
pack_sockaddr_in())
and returns an array of two elements: the
port and the 4-byte ip-address. Will croak if the structure does not have
AF_INET in the right place.
pack_sockaddr_un()
and unpack_sockaddr_un()
explicitly. These are only supported if your system has <sys/un.h>.
bind(),
connect(),
and send(),
and
is also returned by getpeername(),
getsockname()
and recv().
pack_sockaddr_un())
and returns the pathname. Will croak if
the structure does not have AF_UNIX in the right place.