/*
* Copyright (c) 2009 Lukas Mejdrech
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup socket
* @{
*/
/** @file
* Socket application program interface (API).
* This is a part of the network application library.
* Based on the BSD socket interface.
*/
#ifndef __NET_SOCKET_H__
#define __NET_SOCKET_H__
#include "byteorder.h"
#include "in.h"
#include "inet.h"
#include "socket_codes.h"
#include "socket_errno.h"
/** @name Socket application programming interface
*/
/*@{*/
/** Creates a new socket.
* @param domain The socket protocol family. Input parameter.
* @param type Socket type. Input parameter.
* @param protocol Socket protocol. Input parameter.
* @returns The socket identifier on success.
* @returns EPFNOTSUPPORT if the protocol family is not supported.
* @returns ESOCKNOTSUPPORT if the socket type is not supported.
* @returns EPROTONOSUPPORT if the protocol is not supported.
* @returns ENOMEM if there is not enough memory left.
* @returns Other error codes as defined for the NET_SOCKET message.
*/
int socket( int domain, int type, int protocol );
/** Binds the socket to a port address.
* @param socket_id Socket identifier. Input parameter.
* @param my_addr The port address. Input parameter.
* @param addrlen The address length. Input parameter.
* @returns EOK on success.
* @returns ENOTSOCK if the socket is not found.
* @returns EBADMEM if the my_addr parameter is NULL.
* @returns NO_DATA if the addlen parameter is zero (0).
* @returns Other error codes as defined for the NET_SOCKET_BIND message.
*/
int bind( int socket_id, const struct sockaddr * my_addr, socklen_t addrlen );
/** Sets the number of connections waiting to be accepted.
* @param socket_id Socket identifier. Input parameter.
* @param backlog The maximum number of waiting sockets to be accepted. Input parameter.
* @returns EOK on success.
* @returns EINVAL if the backlog parameter is not positive (<=0).
* @returns ENOTSOCK if the socket is not found.
* @returns Other error codes as defined for the NET_SOCKET_LISTEN message.
*/
int listen( int socket_id, int backlog );
/** Accepts waiting socket.
* Blocks until such a socket exists.
* @param socket_id Socket identifier. Input parameter.
* @param cliaddr The remote client address. Output parameter.
* @param addrlen The address length. Input parameter.
* @returns EOK on success.
* @returns EBADMEM if the cliaddr or addrlen parameter is NULL.
* @returns EINVAL if the backlog parameter is not positive (<=0).
* @returns ENOTSOCK if the socket is not found.
* @returns Other error codes as defined for the NET_SOCKET_ACCEPT message.
*/
int accept( int socket_id, struct sockaddr * cliaddr, socklen_t * addrlen );
/** Connects socket to the remote server.
* @param socket_id Socket identifier. Input parameter.
* @param serv_addr The remote server address. Input parameter.
* @param addrlen The address length. Input parameter.
* @returns EOK on success.
* @returns EBADMEM if the serv_addr parameter is NULL.
* @returns NO_DATA if the addlen parameter is zero (0).
* @returns ENOTSOCK if the socket is not found.
* @returns Other error codes as defined for the NET_SOCKET_CONNECT message.
*/
int connect( int socket_id, const struct sockaddr * serv_addr, socklen_t addrlen );
/** Closes the socket.
* @param socket_id Socket identifier. Input parameter.
* @returns EOK on success.
* @returns ENOTSOCK if the socket is not found.
* @returns EINPROGRESS if there is another blocking function in progress.
* @returns Other error codes as defined for the NET_SOCKET_CLOSE message.
*/
int closesocket( int socket_id );
/** Sends data via the socket.
* @param socket_id Socket identifier. Input parameter.
* @param data The data to be sent. Input parameter.
* @param datalength The data length. Input parameter.
* @param flags Various send flags. Input parameter.
* @returns EOK on success.
* @returns ENOTSOCK if the socket is not found.
* @returns EBADMEM if the data parameter is NULL.
* @returns NO_DATA if the datalength parameter is zero (0).
* @returns Other error codes as defined for the NET_SOCKET_SEND message.
*/
int send( int socket_id, void * data, size_t datalength, int flags );
/** Sends data via the socket to the remote address.
* Binds the socket to a free port if not already connected/bound.
* @param socket_id Socket identifier. Input parameter.
* @param data The data to be sent. Input parameter.
* @param datalength The data length. Input parameter.
* @param flags Various send flags. Input parameter.
* @param toaddr The destination address. Input parameter.
* @param addrlen The address length. Input parameter.
* @returns EOK on success.
* @returns ENOTSOCK if the socket is not found.
* @returns EBADMEM if the data or toaddr parameter is NULL.
* @returns NO_DATA if the datalength or the addrlen parameter is zero (0).
* @returns Other error codes as defined for the NET_SOCKET_SENDTO message.
*/
int sendto( int socket_id, const void * data, size_t datalength, int flags, const struct sockaddr * toaddr, socklen_t addrlen );
/** Receives data via the socket.
* @param socket_id Socket identifier. Input parameter.
* @param data The data buffer to be filled. Output parameter.
* @param datalength The data length. Input parameter.
* @param flags Various receive flags. Input parameter.
* @returns EOK on success.
* @returns ENOTSOCK if the socket is not found.
* @returns EBADMEM if the data parameter is NULL.
* @returns NO_DATA if the datalength parameter is zero (0).
* @returns Other error codes as defined for the NET_SOCKET_RECV message.
*/
int recv( int socket_id, void * data, size_t datalength, int flags );
/** Receives data via the socket.
* @param socket_id Socket identifier. Input parameter.
* @param data The data buffer to be filled. Output parameter.
* @param datalength The data length. Input parameter.
* @param flags Various receive flags. Input parameter.
* @param fromaddr The source address. Output parameter.
* @param addrlen The address length. The maximum address length is read. The actual address length is set. Input/output parameter.
* @returns EOK on success.
* @returns ENOTSOCK if the socket is not found.
* @returns EBADMEM if the data or fromaddr parameter is NULL.
* @returns NO_DATA if the datalength or addrlen parameter is zero (0).
* @returns Other error codes as defined for the NET_SOCKET_RECVFROM message.
*/
int recvfrom( int socket_id, void * data, size_t datalength, int flags, struct sockaddr * fromaddr, socklen_t * addrlen );
/** Gets socket option.
* @param socket_id Socket identifier. Input parameter.
* @param level The socket options level. Input parameter.
* @param optname The socket option to be get. Input parameter.
* @param value The value buffer to be filled. Output parameter.
* @param optlen The value buffer length. The maximum length is read. The actual length is set. Input/output parameter.
* @returns EOK on success.
* @returns ENOTSOCK if the socket is not found.
* @returns EBADMEM if the value or optlen parameter is NULL.
* @returns NO_DATA if the optlen parameter is zero (0).
* @returns Other error codes as defined for the NET_SOCKET_GETSOCKOPT message.
*/
int getsockopt( int socket_id, int level, int optname, void * value, size_t * optlen );
/** Sets socket option.
* @param socket_id Socket identifier. Input parameter.
* @param level The socket options level. Input parameter.
* @param optname The socket option to be set. Input parameter.
* @param value The value to be set. Input parameter.
* @param optlen The value length. Input parameter.
* @returns EOK on success.
* @returns ENOTSOCK if the socket is not found.
* @returns EBADMEM if the value parameter is NULL.
* @returns NO_DATA if the optlen parameter is zero (0).
* @returns Other error codes as defined for the NET_SOCKET_SETSOCKOPT message.
*/
int setsockopt( int socket_id, int level, int optname, const void * value, size_t optlen );
/*@}*/
#endif
/** @}
*/