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144 lines
6.9 KiB
144 lines
6.9 KiB
4 years ago
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/***************************************************************************/
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/* */
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/* Project: OpenSLP - OpenSource implementation of Service Location */
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/* Protocol */
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/* */
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/* File: slp_xcast.h */
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/* */
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/* Abstract: Functions used to multicast and broadcast SLP messages */
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/* */
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/*-------------------------------------------------------------------------*/
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/* */
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/* Please submit patches to http://www.openslp.org */
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/* */
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/*-------------------------------------------------------------------------*/
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/* */
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/* Copyright (C) 2000 Caldera Systems, Inc */
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/* All rights reserved. */
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/* */
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/* Redistribution and use in source and binary forms, with or without */
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/* modification, are permitted provided that the following conditions are */
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/* met: */
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/* */
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/* Redistributions of source code must retain the above copyright */
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/* notice, this list of conditions and the following disclaimer. */
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/* */
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/* Redistributions in binary form must reproduce the above copyright */
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/* notice, this list of conditions and the following disclaimer in */
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/* the documentation and/or other materials provided with the */
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/* distribution. */
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/* */
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/* Neither the name of Caldera Systems nor the names of its */
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/* contributors may be used to endorse or promote products derived */
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/* from this software without specific prior written permission. */
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/* */
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/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS */
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/* `AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT */
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/* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR */
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/* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE CALDERA */
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/* SYSTEMS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */
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/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */
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/* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, */
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/* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON */
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/* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */
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/* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE */
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/* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
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/* */
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/***************************************************************************/
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#ifndef SLP_XCAST_H_INCLUDED
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#define SLP_XCAST_H_INCLUDED
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#include "slp_iface.h"
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#include "slp_buffer.h"
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typedef struct _SLPXcastSockets
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{
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int sock_count;
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int sock[SLP_MAX_IFACES];
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struct sockaddr_in peeraddr[SLP_MAX_IFACES];
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}SLPXcastSockets;
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/*========================================================================*/
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int SLPBroadcastSend(const SLPIfaceInfo* ifaceinfo,
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SLPBuffer msg,
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SLPXcastSockets* socks);
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/* Description:
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* Broadcast a message.
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*
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* Parameters:
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* ifaceinfo (IN) Pointer to the SLPIfaceInfo structure that contains
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* information about the interfaces to send on
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* msg (IN) Buffer to send
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*
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* socks (OUT) Sockets used broadcast multicast. May be used to
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* recv() responses. MUST be close by caller using
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* SLPXcastSocketsClose()
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*
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* Returns:
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* Zero on sucess. Non-zero with errno set on error
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*========================================================================*/
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/*========================================================================*/
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int SLPMulticastSend(const SLPIfaceInfo* ifaceinfo,
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SLPBuffer msg,
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SLPXcastSockets* socks);
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/* Description:
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* Multicast a message.
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*
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* Parameters:
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* ifaceinfo (IN) Pointer to the SLPIfaceInfo structure that contains
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* information about the interfaces to send on
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* msg (IN) Buffer to send
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*
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* socks (OUT) Sockets used to multicast. May be used to recv()
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* responses. MUST be close by caller using
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* SLPXcastSocketsClose()
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*
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* Returns:
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* Zero on sucess. Non-zero with errno set on error
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*========================================================================*/
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/*=========================================================================*/
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int SLPXcastRecvMessage(const SLPXcastSockets* sockets,
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SLPBuffer* buf,
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struct sockaddr_in* peeraddr,
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struct timeval* timeout);
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/* Description:
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* Receives datagram messages from one of the sockets in the specified
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* SLPXcastsSockets structure
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*
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* Parameters:
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* sockets (IN) Pointer to the SOPXcastSockets structure that describes
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* which sockets to read messages from.
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* buf (OUT) Pointer to SLPBuffer that will contain the message upon
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* successful return.
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* peeraddr (OUT) Pointer to struc sockaddr_in that will contain the
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* address of the peer that sent the received message.
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* timeout (IN/OUT) pointer to the struct timeval that indicates how much
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* time to wait for a message to arrive
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*
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* Returns:
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* Zero on success, errno on failure.
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*========================================================================*/
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/*========================================================================*/
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int SLPXcastSocketsClose(SLPXcastSockets* socks);
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/* Description:
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* Closes sockets that were opened by calls to SLPMulticastSend() and
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* SLPBroadcastSend()
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*
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* Parameters:
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* socks (IN) Pointer to the SLPXcastSockets structure being close
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*
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* Returns:
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* Zero on sucess. Non-zero with errno set on error
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*========================================================================*/
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#endif
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