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/* Socket-specific operations
Copyright (C) 1995 Free Software Foundation, Inc.
Written by Miles Bader <miles@gnu.ai.mit.edu>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "sock.h"
#include "connq.h"
#include "socket_S.h"
/* Connect two sockets */
error_t
S_socket_connect2 (struct sock_user *user1, struct sock_user *user2)
{
if (!user1 || !user2)
return EOPNOTSUPP;
return sock_connect (user1->sock, user2->sock);
}
/* Make sure we have a queue to listen on. */
static error_t
ensure_connq (struct sock *sock)
{
error_t err = 0;
mutex_lock (&sock->lock);
if (!sock->connq)
err = connq_create (0, &sock->connq);
mutex_unlock (&sock->lock);
return err;
}
/* Return a new connection from a socket previously listened. */
error_t
S_socket_accept (struct sock_user *user,
mach_port_t *port, mach_msg_type_name_t *port_type,
mach_port_t *peer_addr, mach_msg_type_name_t *peer_addr_type)
{
error_t err;
if (!user)
return EOPNOTSUPP;
err = ensure_connq (sock);
if (!err)
{
struct connq_request *req;
struct sock *peer_sock;
err =
connq_listen (sock->connq, sock->flags & SOCK_NONBLOCK,
&req, &peer_sock);
if (!err)
{
struct sock *conn_sock;
err = sock_clone (sock, &conn_sock);
if (!err)
{
err = sock_connect (conn_sock, peer_sock);
if (!err)
{
err = sock_create_port (conn_sock, port, port_type);
if (!err)
{
*addr = ports_get_right (peer_sock->addr);
*addr_type = MACH_MSG_MAKE_SEND;
}
else
/* TEAR DOWN THE CONNECTION XXX */;
}
if (err)
sock_free (conn_sock);
}
/* Communicate any error (or success) to the connecting thread. */
connq_request_complete (req, err);
}
}
return err;
}
/* Prepare a socket of appropriate type for future accept operations. */
error_t
S_socket_listen (struct sock_user *user, int queue_limit)
{
error_t err;
if (!user)
return EOPNOTSUPP;
err = ensure_connq (sock);
if (!err)
err = connq_set_length (sock->connq, queue_limit);
return err;
}
error_t
S_socket_connect (struct sock_user *user, struct addr *addr)
{
struct sock *peer;
if (! user)
return EOPNOTSUPP;
if (! addr)
return EADDRNOTAVAIL;
err = addr_get_sock (addr, &peer);
if (err)
return err;
return sock_connect (user->sock, peer);
}
error_t
S_socket_bind (struct sock_user *user, struct addr *addr)
{
if (! user)
return EOPNOTSUPP;
if (! addr)
return EADDRNOTAVAIL;
return sock_bind (user->sock, addr);
}
error_t
S_socket_shutdown (struct sock_user *user, int what)
{
if (! user)
return EOPNOTSUPP;
sock_shutdown (user->sock,
(what != 1 ? SOCK_SHUTDOWN_READ : 0)
| (what != 0 ? SOCK_SHUTDOWN_WRITE : 0));
return 0;
}
error_t
S_socket_name (struct sock_user *user,
mach_port_t *addr_port, mach_msg_type_name_t *addr_port_type)
{
if (!user)
return EOPNOTSUPP;
*addr_port_type = MACH_MSG_MAKE_SEND;
return sock_get_addr_port (user->sock, &addr_port);
}
error_t
S_socket_peername (struct sock_user *user,
mach_port_t *addr_port,
mach_msg_type_name_t *addr_port_type)
{
if (!user)
return EOPNOTSUPP;
*addr_port_type = MACH_MSG_MAKE_SEND;
return sock_get_peer_addr_port (user->sock, &addr_port);
}
/* Stubs for currently unsupported rpcs. */
error_t
S_socket_getopt (struct sock_user *user,
int level, int opt,
char **value, unsigned *value_len)
{
return EOPNOTSUPP;
}
error_t
S_socket_setopt (struct sock_user *user,
int level, int opt,
char *value, unsigned value_len)
{
return EOPNOTSUPP;
}
error_t
S_socket_send (struct sock_user *user,
mach_port_t addr, int flags,
char *data, unsigned data_len,
mach_port_t *ports, unsigned num_ports,
char *control, unsigned control_len,
int *amount)
{
return EOPNOTSUPP;
}
error_t
S_socket_recv (struct sock_user *user,
mach_port_t *addr, int flags,
char **data, unsigned *data_len,
mach_port_t **ports, mach_msg_type_name_t *ports_type,
unsigned *num_ports,
char **control, unsigned *control_len,
int *out_flags, int amount)
{
return EOPNOTSUPP;
}
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