You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
180 lines
10 KiB
180 lines
10 KiB
4 years ago
|
/***************************************************************************/
|
||
|
|
/* */
|
||
|
|
/* 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
|