main/netmisc.h

   1 /* $Id: netmisc.h,v 1.5 2003-10-10 09:36:35 btb Exp $ */
   2 /*
   3 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
   4 SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
   5 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
   6 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
   7 IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
   8 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
   9 FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
  10 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
  11 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
  12 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
  13 */
  14
  15 /*
  16  *
  17  * Header for netmisc.c
  18  *
  19  * Old Log:
  20  * Revision 1.1  1995/05/16  16:00:08  allender
  21  * Initial revision
  22  *
  23  * Revision 2.0  1995/02/27  11:30:18  john
  24  * New version 2.0, which has no anonymous unions, builds with
  25  * Watcom 10.0, and doesn't require parsing BITMAPS.TBL.
  26  *
  27  * Revision 1.2  1994/08/09  19:31:54  john
  28  * Networking changes.
  29  *
  30  * Revision 1.1  1994/08/08  11:18:40  john
  31  * Initial revision
  32  *
  33  *
  34  */
  35
  36
  37 #ifndef _NETMISC_H
  38 #define _NETMISC_H
  39
  40 #include "multi.h"
  41 #include "network.h"
  42
  43 // Returns a checksum of a block of memory.
  44 extern ushort netmisc_calc_checksum(void *vptr, int len);
  45
  46 // Finds the difference between block1 and block2.  Fills in
  47 // diff_buffer and returns the size of diff_buffer.
  48 extern int netmisc_find_diff(void *block1, void *block2, int block_size, void *diff_buffer);
  49
  50 // Applies diff_buffer to block1 to create a new block1.  Returns the
  51 // final size of block1.
  52 extern int netmisc_apply_diff(void *block1, void *diff_buffer, int diff_size);
  53
  54 #ifdef WORDS_BIGENDIAN
  55
  56 // some mac only routines to deal with incorrectly aligned network structures
  57
  58 void receive_netplayer_info(ubyte *data, AllNetPlayers_info *info);
  59
  60 void receive_netplayers_packet(ubyte *data, AllNetPlayers_info *pinfo);
  61 void send_netplayers_packet(ubyte *server, ubyte *node);
  62 #define send_broadcast_netplayers_packet() \
  63         send_netplayers_packet(NULL, NULL)
  64
  65 void send_sequence_packet(sequence_packet seq, ubyte *server, ubyte *node, ubyte *net_address);
  66 #define send_internetwork_sequence_packet(seq, server, node) \
  67         send_sequence_packet(seq, server, node, NULL)
  68 #define send_broadcast_sequence_packet(seq) \
  69         send_sequence_packet(seq, NULL, NULL, NULL)
  70 void receive_sequence_packet(ubyte *data, sequence_packet *seq);
  71
  72 void send_netgame_packet(ubyte *server, ubyte *node, ubyte *net_address, int lite_flag);
  73 #define send_full_netgame_packet(server, node, net_address) \
  74         send_netgame_packet(server, node, net_address, 0)
  75 #define send_lite_netgame_packet(server, node, net_address) \
  76         send_netgame_packet(server, node, net_address, 1)
  77 #define send_internetwork_full_netgame_packet(server, node) \
  78         send_netgame_packet(server, node, NULL, 0)
  79 #define send_internetwork_lite_netgame_packet(server, node) \
  80         send_netgame_packet(server, node, NULL, 1)
  81 #define send_broadcast_full_netgame_packet() \
  82         send_netgame_packet(NULL, NULL, NULL, 0)
  83 #define send_broadcast_lite_netgame_packet() \
  84         send_netgame_packet(NULL, NULL, NULL, 1)
  85 void receive_netgame_packet(ubyte *data, netgame_info *netgame, int lite_flag);
  86 #define receive_full_netgame_packet(data, netgame) \
  87         receive_netgame_packet(data, netgame, 0)
  88 #define receive_lite_netgame_packet(data, netgame) \
  89         receive_netgame_packet(data, netgame, 1)
  90
  91 void swap_object(object *obj);
  92
  93 #else
  94
  95 #define receive_netplayers_packet(data, pinfo) \
  96         memcpy(pinfo, data, sizeof(AllNetPlayers_info))
  97 #define send_netplayers_packet(server, node) \
  98         ipx_send_internetwork_packet_data((ubyte *)&NetPlayers, sizeof(AllNetPlayers_info), server, node)
  99 #define send_broadcast_netplayers_packet() \
 100         ipx_send_broadcast_packet_data((ubyte *)&NetPlayers, sizeof(AllNetPlayers_info))
 101
 102 #define send_sequence_packet(seq, server, node, net_address) \
 103         ipx_send_packet_data((ubyte *)&seq, sizeof(sequence_packet), server, node, net_address)
 104 #define send_internetwork_sequence_packet(seq, server, node) \
 105         ipx_send_internetwork_packet_data((ubyte *)&seq, sizeof(sequence_packet), server, node)
 106 #define send_broadcast_sequence_packet(seq) \
 107         ipx_send_broadcast_packet_data((ubyte *)&seq, sizeof(sequence_packet))
 108
 109 #define send_full_netgame_packet(server, node, net_address) \
 110         ipx_send_packet_data((ubyte *)&Netgame, sizeof(netgame_info), server, node, net_address)
 111 #define send_lite_netgame_packet(server, node, net_address) \
 112         ipx_send_packet_data((ubyte *)&Netgame, sizeof(lite_info), server, node, net_address)
 113 #define send_internetwork_full_netgame_packet(server, node) \
 114         ipx_send_internetwork_packet_data((ubyte *)&Netgame, sizeof(netgame_info), server, node)
 115 #define send_internetwork_lite_netgame_packet(server, node) \
 116         ipx_send_internetwork_packet_data((ubyte *)&Netgame, sizeof(lite_info), server, node)
 117 #define send_broadcast_full_netgame_packet() \
 118         ipx_send_broadcast_packet_data((ubyte *)&Netgame, sizeof(netgame_info))
 119 #define send_broadcast_lite_netgame_packet() \
 120         ipx_send_broadcast_packet_data((ubyte *)&Netgame, sizeof(lite_info))
 121 #define receive_full_netgame_packet(data, netgame) \
 122         memcpy((ubyte *)(netgame), data, sizeof(netgame_info))
 123 #define receive_lite_netgame_packet(data, netgame) \
 124         memcpy((ubyte *)(netgame), data, sizeof(lite_info))
 125
 126 #define swap_object(obj)
 127
 128 #endif
 129
 130 #endif /* _NETMISC_H */