main/netmisc.h

   1 /*
   2 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
   3 SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
   4 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
   5 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
   6 IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
   7 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
   8 FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
   9 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
  10 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
  11 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
  12 */
  13
  14 /*
  15  *
  16  * Header for netmisc.c
  17  *
  18  */
  19
  20
  21 #ifndef _NETMISC_H
  22 #define _NETMISC_H
  23
  24 #include "multi.h"
  25 #include "network.h"
  26
  27 // Returns a checksum of a block of memory.
  28 extern ushort netmisc_calc_checksum(void *vptr, int len);
  29
  30 // Finds the difference between block1 and block2.  Fills in
  31 // diff_buffer and returns the size of diff_buffer.
  32 extern int netmisc_find_diff(void *block1, void *block2, int block_size, void *diff_buffer);
  33
  34 // Applies diff_buffer to block1 to create a new block1.  Returns the
  35 // final size of block1.
  36 extern int netmisc_apply_diff(void *block1, void *diff_buffer, int diff_size);
  37
  38 #ifdef WORDS_BIGENDIAN
  39
  40 // some mac only routines to deal with incorrectly aligned network structures
  41
  42 void receive_netplayer_info(ubyte *data, AllNetPlayers_info *info);
  43
  44 void receive_netplayers_packet(ubyte *data, AllNetPlayers_info *pinfo);
  45 void send_netplayers_packet(ubyte *server, ubyte *node);
  46 #define send_broadcast_netplayers_packet() \
  47         send_netplayers_packet(NULL, NULL)
  48
  49 void send_sequence_packet(sequence_packet seq, ubyte *server, ubyte *node, ubyte *net_address);
  50 #define send_internetwork_sequence_packet(seq, server, node) \
  51         send_sequence_packet(seq, server, node, NULL)
  52 #define send_broadcast_sequence_packet(seq) \
  53         send_sequence_packet(seq, NULL, NULL, NULL)
  54 void receive_sequence_packet(ubyte *data, sequence_packet *seq);
  55
  56 void send_netgame_packet(ubyte *server, ubyte *node, ubyte *net_address, int lite_flag);
  57 #define send_full_netgame_packet(server, node, net_address) \
  58         send_netgame_packet(server, node, net_address, 0)
  59 #define send_lite_netgame_packet(server, node, net_address) \
  60         send_netgame_packet(server, node, net_address, 1)
  61 #define send_internetwork_full_netgame_packet(server, node) \
  62         send_netgame_packet(server, node, NULL, 0)
  63 #define send_internetwork_lite_netgame_packet(server, node) \
  64         send_netgame_packet(server, node, NULL, 1)
  65 #define send_broadcast_full_netgame_packet() \
  66         send_netgame_packet(NULL, NULL, NULL, 0)
  67 #define send_broadcast_lite_netgame_packet() \
  68         send_netgame_packet(NULL, NULL, NULL, 1)
  69 void receive_netgame_packet(ubyte *data, netgame_info *netgame, int lite_flag);
  70 #define receive_full_netgame_packet(data, netgame) \
  71         receive_netgame_packet(data, netgame, 0)
  72 #define receive_lite_netgame_packet(data, netgame) \
  73         receive_netgame_packet(data, netgame, 1)
  74
  75 void swap_object(object *obj);
  76
  77 #else
  78
  79 #define receive_netplayers_packet(data, pinfo) \
  80         memcpy(pinfo, data, sizeof(AllNetPlayers_info))
  81 #define send_netplayers_packet(server, node) \
  82         ipx_send_internetwork_packet_data((ubyte *)&NetPlayers, sizeof(AllNetPlayers_info), server, node)
  83 #define send_broadcast_netplayers_packet() \
  84         ipx_send_broadcast_packet_data((ubyte *)&NetPlayers, sizeof(AllNetPlayers_info))
  85
  86 #define send_sequence_packet(seq, server, node, net_address) \
  87         ipx_send_packet_data((ubyte *)&seq, sizeof(sequence_packet), server, node, net_address)
  88 #define send_internetwork_sequence_packet(seq, server, node) \
  89         ipx_send_internetwork_packet_data((ubyte *)&seq, sizeof(sequence_packet), server, node)
  90 #define send_broadcast_sequence_packet(seq) \
  91         ipx_send_broadcast_packet_data((ubyte *)&seq, sizeof(sequence_packet))
  92
  93 #define send_full_netgame_packet(server, node, net_address) \
  94         ipx_send_packet_data((ubyte *)&Netgame, sizeof(netgame_info), server, node, net_address)
  95 #define send_lite_netgame_packet(server, node, net_address) \
  96         ipx_send_packet_data((ubyte *)&Netgame, sizeof(lite_info), server, node, net_address)
  97 #define send_internetwork_full_netgame_packet(server, node) \
  98         ipx_send_internetwork_packet_data((ubyte *)&Netgame, sizeof(netgame_info), server, node)
  99 #define send_internetwork_lite_netgame_packet(server, node) \
 100         ipx_send_internetwork_packet_data((ubyte *)&Netgame, sizeof(lite_info), server, node)
 101 #define send_broadcast_full_netgame_packet() \
 102         ipx_send_broadcast_packet_data((ubyte *)&Netgame, sizeof(netgame_info))
 103 #define send_broadcast_lite_netgame_packet() \
 104         ipx_send_broadcast_packet_data((ubyte *)&Netgame, sizeof(lite_info))
 105 #define receive_full_netgame_packet(data, netgame) \
 106         memcpy((ubyte *)(netgame), data, sizeof(netgame_info))
 107 #define receive_lite_netgame_packet(data, netgame) \
 108         memcpy((ubyte *)(netgame), data, sizeof(lite_info))
 109
 110 #define swap_object(obj)
 111
 112 #endif
 113
 114 #endif /* _NETMISC_H */