/***************************************************************************/
/* */
/* Project: OpenSLP - OpenSource implementation of Service Location */
/* Protocol Version 2 */
/* */
/* File: slpd_socket.c */
/* */
/* Abstract: Socket specific functions implementation */
/* */
/* WARNING: NOT thread safe! */
/*-------------------------------------------------------------------------*/
/* */
/* Please submit patches to http://www.openslp.org */
/* */
/*-------------------------------------------------------------------------*/
/* */
/* Copyright (C) 2000 Caldera Systems, Inc */
/* 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. */
/* */
/* Neither the name of Caldera Systems nor the names of its */
/* contributors may be used to endorse or promote products derived */
/* from this software without specific prior written permission. */
/* */
/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS */
/* `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 CALDERA */
/* SYSTEMS OR CONTRIBUTORS 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. */
/* */
/***************************************************************************/
#ifndef SLPD_SOCKET_H_INCLUDED
#define SLPD_SOCKET_H_INCLUDED
#include "slpd.h"
/*=========================================================================*/
/* common code includes */
/*=========================================================================*/
#include "slp_buffer.h"
/*=========================================================================*/
/* Misc constants */
/*=========================================================================*/
#define SLPD_SMALLEST_MESSAGE 18 /* 18 bytes is smallest SLPv2 msg */
/*=========================================================================*/
/* Values representing a type or state of a socket */
/*=========================================================================*/
#define SOCKET_PENDING_IO 100
#define SOCKET_LISTEN 0
#define SOCKET_CLOSE 1
#define DATAGRAM_UNICAST 2
#define DATAGRAM_MULTICAST 3
#define DATAGRAM_BROADCAST 4
#define STREAM_CONNECT_IDLE 5
#define STREAM_CONNECT_BLOCK 6 + SOCKET_PENDING_IO
#define STREAM_CONNECT_CLOSE 7 + SOCKET_PENDING_IO
#define STREAM_READ 8 + SOCKET_PENDING_IO
#define STREAM_READ_FIRST 9 + SOCKET_PENDING_IO
#define STREAM_WRITE 10 + SOCKET_PENDING_IO
#define STREAM_WRITE_FIRST 11 + SOCKET_PENDING_IO
#define STREAM_WRITE_WAIT 12 + SOCKET_PENDING_IO
#ifdef _WIN32
#define CloseSocket(Arg) closesocket(Arg)
#else
#define CloseSocket(Arg) close(Arg)
#endif
/*=========================================================================*/
typedef struct _SLPDSocket
/* Structure representing a socket */
/*=========================================================================*/
{
SLPListItem listitem;
int fd;
time_t age; /* in seconds */
int state;
struct sockaddr_in ifaddr; /* address of interface */
struct sockaddr_in peeraddr;
/* Incoming socket stuff */
SLPBuffer recvbuf;
SLPBuffer sendbuf;
/* Outgoing socket stuff */
int reconns;
SLPList sendlist;
}SLPDSocket;
/*==========================================================================*/
SLPDSocket* SLPDSocketCreateConnected(struct in_addr* addr);
/* */
/* addr - (IN) the address of the peer to connect to */
/* */
/* Returns: A connected socket or a socket in the process of being connected*/
/* if the socket was connected the SLPDSocket->state will be set */
/* to writable. If the connect would block, SLPDSocket->state will*/
/* be set to connect. Return NULL on error */
/*==========================================================================*/
/*==========================================================================*/
SLPDSocket* SLPDSocketCreateListen(struct in_addr* peeraddr);
/* */
/* peeraddr - (IN) the address of the peer to connect to */
/* */
/* type (IN) DATAGRAM_UNICAST, DATAGRAM_MULTICAST, DATAGRAM_BROADCAST */
/* */
/* Returns: A listening socket. SLPDSocket->state will be set to */
/* SOCKET_LISTEN. Returns NULL on error */
/*==========================================================================*/
/*==========================================================================*/
SLPDSocket* SLPDSocketCreateDatagram(struct in_addr* peeraddr, int type);
/* peeraddr - (IN) the address of the peer to connect to */
/* */
/* type - (IN) the type of socket to create DATAGRAM_UNICAST, */
/* DATAGRAM_MULTICAST, or DATAGRAM_BROADCAST */
/* Returns: A datagram socket SLPDSocket->state will be set to */
/* DATAGRAM_UNICAST, DATAGRAM_MULTICAST, or DATAGRAM_BROADCAST */
/*==========================================================================*/
/*==========================================================================*/
SLPDSocket* SLPDSocketCreateBoundDatagram(struct in_addr* myaddr,
struct in_addr* peeraddr,
int type);
/* myaddr - (IN) the address of the interface to join mcast on */
/* */
/* peeraddr - (IN) the address of the peer to connect to */
/* */
/* type (IN) DATAGRAM_UNICAST, DATAGRAM_MULTICAST, DATAGRAM_BROADCAST */
/* */
/* Returns: A datagram socket SLPDSocket->state will be set to */
/* DATAGRAM_UNICAST, DATAGRAM_MULTICAST, or DATAGRAM_BROADCAST */
/*==========================================================================*/
/*=========================================================================*/
SLPDSocket* SLPDSocketAlloc();
/* Allocate memory for a new SLPDSocket. */
/* */
/* Returns: pointer to a newly allocated SLPDSocket, or NULL if out of */
/* memory. */
/*=========================================================================*/
/*=========================================================================*/
void SLPDSocketFree(SLPDSocket* sock);
/* Frees memory associated with the specified SLPDSocket */
/* */
/* sock (IN) pointer to the socket to free */
/*=========================================================================*/
#endif
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