/* Create a new socket of type TYPE in domain DOMAIN, using
protocol PROTOCOL. If PROTOCOL is zero, one is chosen automatically.
Returns a file descriptor for the new socket, or -1 for errors. */
int
__socket (int domain, int type, int protocol)
{
error_t err;
socket_t sock, server;
/* Find the socket server for DOMAIN. */
server = _hurd_socket_server (domain, 0);
if (server == MACH_PORT_NULL)
return -1;
err = __socket_create (server, type, protocol, &sock);
if (err == MACH_SEND_INVALID_DEST || err == MIG_SERVER_DIED
|| err == MIG_BAD_ID || err == EOPNOTSUPP)
{
/* On the first use of the socket server during the operation,
allow for the old server port dying. */
server = _hurd_socket_server (domain, 1);
if (server == MACH_PORT_NULL)
return -1;
err = __socket_create (server, type, protocol, &sock);
}
/* These errors all mean that the server node doesn't support the
socket.defs protocol, which we'll take to mean that the protocol
isn't supported. */
if (err == MACH_SEND_INVALID_DEST || err == MIG_SERVER_DIED
|| err == MIG_BAD_ID || err == EOPNOTSUPP)
err = EAFNOSUPPORT;
if (err)
return __hurd_fail (err);
return _hurd_intern_fd (sock, O_IGNORE_CTTY, 1);
}
/* Create two new sockets, of type TYPE in domain DOMAIN and using
protocol PROTOCOL, which are connected to each other, and put file
descriptors for them in FDS[0] and FDS[1]. If PROTOCOL is zero,
one will be chosen automatically. Returns 0 on success, -1 for errors. */
int
__socketpair (int domain, int type, int protocol, int fds[2])
{
error_t err;
socket_t server, sock1, sock2;
int d1, d2;
if (fds == NULL)
return __hurd_fail (EINVAL);
/* Find the domain's socket server. */
server = _hurd_socket_server (domain, 0);
if (server == MACH_PORT_NULL)
return -1;
/* Create two sockets and connect them together. */
err = __socket_create (server, type, protocol, &sock1);
if (err == MACH_SEND_INVALID_DEST || err == MIG_SERVER_DIED
|| err == MIG_BAD_ID || err == EOPNOTSUPP)
{
/* On the first use of the socket server during the operation,
allow for the old server port dying. */
server = _hurd_socket_server (domain, 1);
if (server == MACH_PORT_NULL)
return -1;
err = __socket_create (server, type, protocol, &sock1);
}
if (err)
return __hurd_fail (err);
if (err = __socket_create (server, type, protocol, &sock2))
{
__mach_port_deallocate (__mach_task_self (), sock1);
return __hurd_fail (err);
}
if (err = __socket_connect2 (sock1, sock2))
{
__mach_port_deallocate (__mach_task_self (), sock1);
__mach_port_deallocate (__mach_task_self (), sock2);
return __hurd_fail (err);
}
/* Put the sockets into file descriptors. */
d1 = _hurd_intern_fd (sock1, O_IGNORE_CTTY, 1);
if (d1 < 0)
{
__mach_port_deallocate (__mach_task_self (), sock2);
return -1;
}
d2 = _hurd_intern_fd (sock2, O_IGNORE_CTTY, 1);
if (d2 < 0)
{
err = errno;
(void) close (d1);
return __hurd_fail (err);
}
fds[0] = d1;
fds[1] = d2;
return 0;
}
