main/netmisc.h

   1 /* $Id: netmisc.h,v 1.6 2004-08-28 23:17:45 schaffner 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  */
  20
  21
  22 #ifndef _NETMISC_H
  23 #define _NETMISC_H
  24
  25 #include "multi.h"
  26 #include "network.h"
  27
  28 // Returns a checksum of a block of memory.
  29 extern ushort netmisc_calc_checksum(void *vptr, int len);
  30
  31 // Finds the difference between block1 and block2.  Fills in
  32 // diff_buffer and returns the size of diff_buffer.
  33 extern int netmisc_find_diff(void *block1, void *block2, int block_size, void *diff_buffer);
  34
  35 // Applies diff_buffer to block1 to create a new block1.  Returns the
  36 // final size of block1.
  37 extern int netmisc_apply_diff(void *block1, void *diff_buffer, int diff_size);
  38
  39 #ifdef WORDS_BIGENDIAN
  40
  41 // some mac only routines to deal with incorrectly aligned network structures
  42
  43 void receive_netplayer_info(ubyte *data, AllNetPlayers_info *info);
  44
  45 void receive_netplayers_packet(ubyte *data, AllNetPlayers_info *pinfo);
  46 void send_netplayers_packet(ubyte *server, ubyte *node);
  47 #define send_broadcast_netplayers_packet() \
  48         send_netplayers_packet(NULL, NULL)
  49
  50 void send_sequence_packet(sequence_packet seq, ubyte *server, ubyte *node, ubyte *net_address);
  51 #define send_internetwork_sequence_packet(seq, server, node) \
  52         send_sequence_packet(seq, server, node, NULL)
  53 #define send_broadcast_sequence_packet(seq) \
  54         send_sequence_packet(seq, NULL, NULL, NULL)
  55 void receive_sequence_packet(ubyte *data, sequence_packet *seq);
  56
  57 void send_netgame_packet(ubyte *server, ubyte *node, ubyte *net_address, int lite_flag);
  58 #define send_full_netgame_packet(server, node, net_address) \
  59         send_netgame_packet(server, node, net_address, 0)
  60 #define send_lite_netgame_packet(server, node, net_address) \
  61         send_netgame_packet(server, node, net_address, 1)
  62 #define send_internetwork_full_netgame_packet(server, node) \
  63         send_netgame_packet(server, node, NULL, 0)
  64 #define send_internetwork_lite_netgame_packet(server, node) \
  65         send_netgame_packet(server, node, NULL, 1)
  66 #define send_broadcast_full_netgame_packet() \
  67         send_netgame_packet(NULL, NULL, NULL, 0)
  68 #define send_broadcast_lite_netgame_packet() \
  69         send_netgame_packet(NULL, NULL, NULL, 1)
  70 void receive_netgame_packet(ubyte *data, netgame_info *netgame, int lite_flag);
  71 #define receive_full_netgame_packet(data, netgame) \
  72         receive_netgame_packet(data, netgame, 0)
  73 #define receive_lite_netgame_packet(data, netgame) \
  74         receive_netgame_packet(data, netgame, 1)
  75
  76 void swap_object(object *obj);
  77
  78 #else
  79
  80 #define receive_netplayers_packet(data, pinfo) \
  81         memcpy(pinfo, data, sizeof(AllNetPlayers_info))
  82 #define send_netplayers_packet(server, node) \
  83         ipx_send_internetwork_packet_data((ubyte *)&NetPlayers, sizeof(AllNetPlayers_info), server, node)
  84 #define send_broadcast_netplayers_packet() \
  85         ipx_send_broadcast_packet_data((ubyte *)&NetPlayers, sizeof(AllNetPlayers_info))
  86
  87 #define send_sequence_packet(seq, server, node, net_address) \
  88         ipx_send_packet_data((ubyte *)&seq, sizeof(sequence_packet), server, node, net_address)
  89 #define send_internetwork_sequence_packet(seq, server, node) \
  90         ipx_send_internetwork_packet_data((ubyte *)&seq, sizeof(sequence_packet), server, node)
  91 #define send_broadcast_sequence_packet(seq) \
  92         ipx_send_broadcast_packet_data((ubyte *)&seq, sizeof(sequence_packet))
  93
  94 #define send_full_netgame_packet(server, node, net_address) \
  95         ipx_send_packet_data((ubyte *)&Netgame, sizeof(netgame_info), server, node, net_address)
  96 #define send_lite_netgame_packet(server, node, net_address) \
  97         ipx_send_packet_data((ubyte *)&Netgame, sizeof(lite_info), server, node, net_address)
  98 #define send_internetwork_full_netgame_packet(server, node) \
  99         ipx_send_internetwork_packet_data((ubyte *)&Netgame, sizeof(netgame_info), server, node)
 100 #define send_internetwork_lite_netgame_packet(server, node) \
 101         ipx_send_internetwork_packet_data((ubyte *)&Netgame, sizeof(lite_info), server, node)
 102 #define send_broadcast_full_netgame_packet() \
 103         ipx_send_broadcast_packet_data((ubyte *)&Netgame, sizeof(netgame_info))
 104 #define send_broadcast_lite_netgame_packet() \
 105         ipx_send_broadcast_packet_data((ubyte *)&Netgame, sizeof(lite_info))
 106 #define receive_full_netgame_packet(data, netgame) \
 107         memcpy((ubyte *)(netgame), data, sizeof(netgame_info))
 108 #define receive_lite_netgame_packet(data, netgame) \
 109         memcpy((ubyte *)(netgame), data, sizeof(lite_info))
 110
 111 #define swap_object(obj)
 112
 113 #endif
 114
 115 #endif /* _NETMISC_H */