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  1. #include "pd/net.h"
  2.  
  3. #include "brender/brender.h"
  4. #include "dr_types.h"
  5. #include "errors.h"
  6. #include "globvrpb.h"
  7. #include "harness/config.h"
  8. #include "harness/hooks.h"
  9. #include "harness/trace.h"
  10. #include "harness/winsock.h"
  11. #include "network.h"
  12. #include "pd/net.h"
  13. #include "pd/sys.h"
  14. #include <ctype.h>
  15. #include <stdlib.h>
  16. #include <string.h>
  17.  
  18. // dethrace: have switched out IPX implementation for IP
  19.  
  20. tU32 gNetwork_init_flags;
  21. tPD_net_game_info* gJoinable_games;
  22. int gMatts_PC;
  23. tU16 gSocket_number_pd_format;
  24. //_IPX_ELEMENT gListen_elements[16];
  25. char gLocal_ipx_addr_string[32];
  26. //_IPX_ELEMENT gSend_elements[16];
  27. struct sockaddr_in* gLocal_addr_ipx;
  28. char gReceive_buffer[512];
  29. tPD_net_player_info gRemote_net_player_info;
  30. struct sockaddr_in* gBroadcast_addr_ipx;
  31. tPD_net_player_info gLocal_net_player_info;
  32. char gSend_buffer[512];
  33. tIPX_netnum gNetworks[16];
  34. struct sockaddr_in* gRemote_addr_ipx;
  35. tU8* gSend_packet;
  36. // W32 gListen_segment;
  37. tU8* gSend_packet_ptr;
  38. // W32 gSend_segment;
  39. tU8* gListen_packet;
  40. tU8* gListen_packet_ptr;
  41. size_t gMsg_header_strlen;
  42. int gNumber_of_networks;
  43. int gNumber_of_hosts;
  44. //_IPX_HEADER gLast_received_IPX_header;
  45. tU16 gSocket_number_network_order;
  46. // unsigned short gECB_offset;
  47. tU16 gListen_selector;
  48. tU16 gSend_selector;
  49.  
  50. struct sockaddr_in gLocal_addr;
  51. struct sockaddr_in gRemote_addr;
  52. struct sockaddr_in gBroadcast_addr;
  53. struct sockaddr_in gLast_received_addr;
  54. int gSocket;
  55.  
  56. #define MESSAGE_HEADER_STR "CW95MSG"
  57. #define JOINABLE_GAMES_CAPACITY 16
  58.  
  59. // IDA: void __cdecl ClearupPDNetworkStuff()
  60. void ClearupPDNetworkStuff(void) {
  61.     LOG_TRACE("()");
  62.     NOT_IMPLEMENTED();
  63. }
  64.  
  65. // IDA: void __usercall MATTMessageCheck(char *pFunction_name@<EAX>, tNet_message *pMessage@<EDX>, int pAlleged_size@<EBX>)
  66. void MATTMessageCheck(char* pFunction_name, tNet_message* pMessage, int pAlleged_size) {
  67.     LOG_TRACE("(\"%s\", %p, %d)", pFunction_name, pMessage, pAlleged_size);
  68.     NOT_IMPLEMENTED();
  69. }
  70.  
  71. // IDA: int __usercall GetProfileText@<EAX>(char *pDest@<EAX>, int pDest_len@<EDX>, char *pFname@<EBX>, char *pKeyname@<ECX>)
  72. int GetProfileText(char* pDest, int pDest_len, char* pFname, char* pKeyname) {
  73.     //FILE* fp; // Pierre-Marie Baty -- unused variable
  74.     //char in_buf[256]; // Pierre-Marie Baty -- unused variable
  75.     //int i; // Pierre-Marie Baty -- unused variable
  76.     //int j; // Pierre-Marie Baty -- unused variable
  77.     //int len; // Pierre-Marie Baty -- unused variable
  78.     LOG_TRACE("(\"%s\", %d, \"%s\", \"%s\")", pDest, pDest_len, pFname, pKeyname);
  79.     NOT_IMPLEMENTED();
  80. }
  81.  
  82. // IDA: int __cdecl GetSocketNumberFromProfileFile()
  83. int GetSocketNumberFromProfileFile(void) {
  84.     //char str[256]; // Pierre-Marie Baty -- unused variable
  85.     //int sscanf_res; // Pierre-Marie Baty -- unused variable
  86.     //tU32 socknum; // Pierre-Marie Baty -- unused variable
  87.     LOG_TRACE("()");
  88.     NOT_IMPLEMENTED();
  89. }
  90.  
  91. // tU32 EthernetAddressToU32(SOCKADDR_IPX_* pAddr_ipx) {
  92. //     LOG_TRACE("(%p)", pAddr_ipx);
  93. //     NOT_IMPLEMENTED();
  94. // }
  95.  
  96. void NetNowIPXLocalTarget2String(char* pString, struct sockaddr_in* pSock_addr_ipx) {
  97.     LOG_TRACE("(\"%s\", %p)", pString, pSock_addr_ipx);
  98.  
  99.     char portbuf[10];
  100.  
  101.     inet_ntop(AF_INET, &pSock_addr_ipx->sin_addr, pString, 32);
  102.     sprintf(portbuf, ":%d", ntohs(pSock_addr_ipx->sin_port));
  103.     strcat(pString, portbuf);
  104. }
  105.  
  106. // IDA: int __usercall GetMessageTypeFromMessage@<EAX>(char *pMessage_str@<EAX>)
  107. int GetMessageTypeFromMessage(char* pMessage_str) {
  108.     char* real_msg;
  109.     int msg_type_int;
  110.     LOG_TRACE("(\"%s\")", pMessage_str);
  111.  
  112.     real_msg = &pMessage_str[4];
  113.     msg_type_int = 0;
  114.  
  115.     // FIXME: "CW95MSG" value is used in and depends on platform
  116.     if (strncmp(real_msg, MESSAGE_HEADER_STR, gMsg_header_strlen) == 0) {
  117.         if (isdigit(real_msg[gMsg_header_strlen])) {
  118.             msg_type_int = real_msg[gMsg_header_strlen] - '0';
  119.         }
  120.         if (msg_type_int != 0 && msg_type_int < 3) {
  121.             return msg_type_int;
  122.         }
  123.     }
  124.     return 999;
  125. }
  126.  
  127. int SameEthernetAddress(struct sockaddr_in* pAddr_ipx1, struct sockaddr_in* pAddr_ipx2) {
  128.     LOG_TRACE("(%p, %p)", pAddr_ipx1, pAddr_ipx2);
  129.  
  130.     return memcmp(pAddr_ipx1, pAddr_ipx2, sizeof(struct sockaddr_in)) == 0;
  131. }
  132.  
  133. /*SOCKADDR_IPX_* */ void* GetIPXAddrFromPlayerID(tPlayer_ID pPlayer_id) {
  134.     //int i; // Pierre-Marie Baty -- unused variable
  135.     //tU8* nodenum; // Pierre-Marie Baty -- unused variable
  136.     NOT_IMPLEMENTED();
  137. }
  138.  
  139. // IDA: void __usercall MakeMessageToSend(int pMessage_type@<EAX>)
  140. void MakeMessageToSend(int pMessage_type) {
  141.     LOG_TRACE("(%d)", pMessage_type);
  142.  
  143. #ifdef DETHRACE_FIX_BUGS
  144.     sprintf(gSend_buffer, "XXXX%s%1d", MESSAGE_HEADER_STR, pMessage_type);
  145. #else
  146.     sprintf(gSend_buffer, "XXXX%s%0.1d", MESSAGE_HEADER_STR, pMessage_type);
  147. #endif
  148. }
  149.  
  150. // IDA: int __cdecl ReceiveHostResponses()
  151. int ReceiveHostResponses(void) {
  152.     char str[256];
  153.     int i;
  154.     int already_registered;
  155.     LOG_TRACE("()");
  156.  
  157.     char addr_string[32];
  158.     unsigned int sa_len;
  159.     int wsa_error;
  160.  
  161.     sa_len = sizeof(gRemote_addr);
  162.     while (1) {
  163.         if (recvfrom(gSocket, gReceive_buffer, sizeof(gReceive_buffer), 0, (struct sockaddr*)&gRemote_addr, &sa_len) == -1) {
  164.             break;
  165.         }
  166.         NetNowIPXLocalTarget2String(addr_string, gRemote_addr_ipx);
  167.         dr_dprintf("ReceiveHostResponses(): Received string '%s' from %s", gReceive_buffer, addr_string);
  168.  
  169.         if (SameEthernetAddress(gLocal_addr_ipx, gRemote_addr_ipx)) {
  170.             dr_dprintf("*** Discounting the above 'cos we sent it ***");
  171.             continue;
  172.         }
  173.         if (GetMessageTypeFromMessage(gReceive_buffer) != 2) {
  174.             dr_dprintf("*** Discounting the above 'cos it's not a host reply ***");
  175.             continue;
  176.         }
  177.  
  178.         dr_dprintf("*** It's a host reply! ***");
  179.         already_registered = 0;
  180.         for (i = 0; i < gNumber_of_hosts; i++) {
  181.             if (SameEthernetAddress(&gJoinable_games[i].addr_in, gRemote_addr_ipx)) {
  182.                 already_registered = 1;
  183.                 break;
  184.             }
  185.         }
  186.         if (already_registered) {
  187.             dr_dprintf("That game already registered");
  188.             gJoinable_games[i].last_response = PDGetTotalTime();
  189.         } else {
  190.             dr_dprintf("Adding joinable game to slot #%d", gNumber_of_hosts);
  191.             gJoinable_games[gNumber_of_hosts].addr_in = *gRemote_addr_ipx;
  192.             gJoinable_games[gNumber_of_hosts].last_response = PDGetTotalTime();
  193.             gNumber_of_hosts++;
  194.             dr_dprintf("Number of games found so far: %d", gNumber_of_hosts);
  195.         }
  196.         if (gNumber_of_hosts) {
  197.             dr_dprintf("Currently registered net games:");
  198.             for (i = 0; i < gNumber_of_hosts; i++) {
  199.                 NetNowIPXLocalTarget2String(str, &gJoinable_games[i].addr_in);
  200.                 dr_dprintf("%d: Host addr %s", i, str);
  201.             }
  202.         }
  203.     }
  204.     wsa_error = WSAGetLastError() != WSAEWOULDBLOCK;
  205.     if (wsa_error == 0) {
  206.         return 1;
  207.     }
  208.     dr_dprintf("ReceiveHostResponses(): Error on recvfrom() - WSAGetLastError=%d", wsa_error);
  209.     return 0;
  210. }
  211.  
  212. // IDA: int __cdecl BroadcastMessage()
  213. int BroadcastMessage(void) {
  214.     int i;
  215.     int errors;
  216.     char broadcast_addr_string[32];
  217.     //char* real_msg; // Pierre-Marie Baty -- unused variable
  218.     LOG_TRACE("()");
  219.  
  220.     errors = 0;
  221.     for (i = 0; i < gNumber_of_networks; i++) {
  222.         //*(_DWORD*)gBroadcast_addr_ipx->sa_netnum = gNetworks[i];
  223.         NetNowIPXLocalTarget2String(broadcast_addr_string, gBroadcast_addr_ipx);
  224.         dr_dprintf("Broadcasting on address '%s'", broadcast_addr_string);
  225.         if (sendto(gSocket, gSend_buffer, strlen(gSend_buffer) + 1, 0, (struct sockaddr*)&gBroadcast_addr, sizeof(gBroadcast_addr)) == -1) {
  226.             dr_dprintf("BroadcastMessage(): Error on sendto() - WSAGetLastError=%d", WSAGetLastError());
  227.             errors = 1;
  228.         }
  229.     }
  230.     return errors == 0;
  231. }
  232.  
  233. // IDA: int __cdecl PDNetInitialise()
  234. int PDNetInitialise(void) {
  235.     //tU32 timenow; // Pierre-Marie Baty -- unused variable
  236.     //char profile_string[32]; // Pierre-Marie Baty -- unused variable
  237.     //char key_name[32]; // Pierre-Marie Baty -- unused variable
  238.     //int sscanf_res; // Pierre-Marie Baty -- unused variable
  239.     //int i; // Pierre-Marie Baty -- unused variable
  240.     //tU32 netnum; // Pierre-Marie Baty -- unused variable
  241.     //char str[256]; // Pierre-Marie Baty -- unused variable
  242.     //int mess_num; // Pierre-Marie Baty -- unused variable
  243.  
  244.     struct linger so_linger;
  245.     unsigned int sa_len;
  246.     WSADATA wsadata;
  247.     LOG_TRACE("()");
  248.  
  249.     sa_len = sizeof(struct sockaddr_in);
  250.     dr_dprintf("PDNetInitialise()");
  251.     int ipx_socket_num = 12286;
  252.     // Dont bother to handle network.ini
  253.     // if (gWin32_should_load_network_ini) {
  254.     //     if (GetPrivateProfileStringA(
  255.     //             "Network",
  256.     //             "IPXSocket",
  257.     //             Default,
  258.     //             (LPSTR)ReturnedString,
  259.     //             0x20u,
  260.     //             gNetwork_profile_fname)) {
  261.     //         v11 = sscanf(ReturnedString, "%x", &v9);
  262.     //         if (v11) {
  263.     //             if (v11 != -1) {
  264.     //                 dr_dprintf("New IPX socket %4.4x", v9);
  265.     //                 ipx_socket_num = sub_454930(v9);
  266.     //             }
  267.     //         }
  268.     //     }
  269.     // }
  270.     gLocal_addr_ipx = &gLocal_addr;
  271.     gRemote_addr_ipx = &gRemote_addr;
  272.     gBroadcast_addr_ipx = &gBroadcast_addr;
  273.     memset(&gLocal_addr, 0, sizeof(struct sockaddr_in));
  274.     memset(&gRemote_addr, 0, sizeof(struct sockaddr_in));
  275.     memset(&gBroadcast_addr, 0, sizeof(struct sockaddr_in));
  276.  
  277.     // gLocal_addr_ipx->sa_family = AF_IPX;
  278.     // gRemote_addr_ipx->sa_family = AF_IPX;
  279.     // gBroadcast_addr_ipx->sa_family = AF_IPX;
  280.     // gLocal_addr_ipx->sa_socket = ipx_socket_num;
  281.     // gRemote_addr_ipx->sa_socket = ipx_socket_num;
  282.     // gBroadcast_addr_ipx->sa_socket = ipx_socket_num;
  283.  
  284.     // // IPX broadcast
  285.     // gBroadcast_addr_ipx->sa_nodenum[0] = -1;
  286.     // gBroadcast_addr_ipx->sa_nodenum[1] = -1;
  287.     // gBroadcast_addr_ipx->sa_nodenum[2] = -1;
  288.     // gBroadcast_addr_ipx->sa_nodenum[3] = -1;
  289.     // gBroadcast_addr_ipx->sa_nodenum[4] = -1;
  290.     // gBroadcast_addr_ipx->sa_nodenum[5] = -1;
  291.  
  292.     gLocal_addr.sin_family = AF_INET;
  293.     gLocal_addr.sin_port = htons(12286);
  294.     gLocal_addr.sin_addr.s_addr = INADDR_ANY;
  295.     gRemote_addr.sin_family = AF_INET;
  296.     gRemote_addr.sin_port = htons(12286);
  297.     gBroadcast_addr.sin_family = AF_INET;
  298.     gBroadcast_addr.sin_port = htons(12286);
  299.  
  300.     // original code was using MAKEWORD(1, 1)
  301.     if (WSAStartup(MAKEWORD(2, 2), &wsadata) == -1) {
  302.         dr_dprintf("PDNetInitialise(): WSAStartup() failed");
  303.         return -1;
  304.     }
  305.  
  306.     // gSocket = socket(6, 2, 1000);
  307.     gSocket = socket(AF_INET, SOCK_DGRAM, 0);
  308.     if (gSocket == -1) {
  309.         dr_dprintf("PDNetInitialise(): Failed to create socket - WSAGetLastError=%d", WSAGetLastError());
  310.         WSACleanup();
  311.         return -1;
  312.     }
  313.     int broadcast = 1;
  314.     setsockopt(gSocket, SOL_SOCKET, SO_BROADCAST, (void *) &broadcast, sizeof(broadcast)); // Pierre-Marie Baty -- added portable type cast
  315.     so_linger.l_onoff = 1;
  316.     so_linger.l_linger = 0;
  317.     setsockopt(gSocket, SOL_SOCKET, SO_LINGER, (void *) &so_linger, sizeof(so_linger)); // Pierre-Marie Baty -- added portable type cast
  318.  
  319.     unsigned long nobio = 1;
  320.     if (ioctlsocket(gSocket, FIONBIO, &nobio) == -1) {
  321.         dr_dprintf("Error on ioctlsocket() - WSAGetLastError=%d", WSAGetLastError());
  322.         closesocket(gSocket);
  323.         WSACleanup();
  324.         return -1;
  325.     }
  326.  
  327.     if (harness_game_config.no_bind == 0) {
  328.         if (bind(gSocket, (struct sockaddr*)&gLocal_addr, sizeof(gLocal_addr)) == -1) {
  329.             dr_dprintf("Error on bind() - WSAGetLastError=%d", WSAGetLastError());
  330.             closesocket(gSocket);
  331.             WSACleanup();
  332.             return -1;
  333.         }
  334.     }
  335.  
  336.     int res = getsockname(gSocket, (struct sockaddr*)&gLocal_addr, &sa_len);
  337.     NetNowIPXLocalTarget2String(gLocal_ipx_addr_string, gLocal_addr_ipx);
  338.     // gNetworks[0] = *(tIPX_netnum*)gLocal_addr_ipx->sa_netnum;
  339.     gNumber_of_networks = 1;
  340.  
  341.     // if (gWin32_should_load_network_ini) {
  342.     //     for (i = 1; i <= 15; ++i) {
  343.     //         sprintf(KeyName, "%s%d", "Network", i);
  344.     //         if (GetPrivateProfileStringA(
  345.     //                 "Network",
  346.     //                 KeyName,
  347.     //                 Default,
  348.     //                 (LPSTR)ReturnedString,
  349.     //                 0x20u,
  350.     //                 gNetwork_profile_fname)) {
  351.     //             v11 = sscanf(ReturnedString, "%x", &network_nbr);
  352.     //             if (v11) {
  353.     //                 if (v11 != -1) {
  354.     //                     dr_dprintf("Found network number '%x' in INI file", network_nbr);
  355.     //                     gNetworks[gNumber_of_networks].bNetwork[0] = HIBYTE(network_nbr);
  356.     //                     gNetworks[gNumber_of_networks].bNetwork[1] = (network_nbr & 0xFF0000u) >> 16;
  357.     //                     gNetworks[gNumber_of_networks].bNetwork[2] = BYTE1(network_nbr);
  358.     //                     gNetworks[gNumber_of_networks].bNetwork[3] = network_nbr;
  359.     //                     if (gNetworks[gNumber_of_networks].bNetwork[0] != gLocal_addr_ipx->sa_netnum[0]
  360.     //                         || gNetworks[gNumber_of_networks].bNetwork[1] != gLocal_addr_ipx->sa_netnum[1]
  361.     //                         || gNetworks[gNumber_of_networks].bNetwork[2] != gLocal_addr_ipx->sa_netnum[2]
  362.     //                         || gNetworks[gNumber_of_networks].bNetwork[3] != gLocal_addr_ipx->sa_netnum[3]) {
  363.     //                         ++gNumber_of_networks;
  364.     //                     }
  365.     //                 }
  366.     //             }
  367.     //         }
  368.     //     }
  369.     //     dr_dprintf("Total networks = %d", gNumber_of_networks);
  370.     // }
  371.     // byte_536440 = *gLocal_addr_ipx;
  372.  
  373.     dr_dprintf("Socket bound OK; local address is '%s'", gLocal_ipx_addr_string);
  374.     gMsg_header_strlen = 7;
  375.     if (strstr(gLocal_ipx_addr_string, "00a0240f9fac")) {
  376.         gMatts_PC = 1;
  377.     }
  378.     return 0;
  379. }
  380.  
  381. // IDA: int __cdecl PDNetShutdown()
  382. int PDNetShutdown(void) {
  383.     LOG_TRACE("()");
  384.  
  385.     dr_dprintf("PDNetShutdown()");
  386.     if (gSocket != -1) {
  387.         closesocket(gSocket);
  388.     }
  389.     gSocket = -1;
  390.     return 0;
  391. }
  392.  
  393. // IDA: void __cdecl PDNetStartProducingJoinList()
  394. void PDNetStartProducingJoinList(void) {
  395.     LOG_TRACE("()");
  396.  
  397.     dr_dprintf("PDNetStartProducingJoinList()");
  398.     gNumber_of_hosts = 0;
  399.     gJoinable_games = BrMemAllocate(sizeof(tPD_net_game_info) * JOINABLE_GAMES_CAPACITY, 0x80u);
  400.     if (gJoinable_games == NULL) {
  401.         PDFatalError("Can't allocate memory for joinable games");
  402.     }
  403. }
  404.  
  405. // IDA: void __cdecl PDNetEndJoinList()
  406. void PDNetEndJoinList(void) {
  407.     LOG_TRACE("()");
  408.  
  409.     dr_dprintf("PDNetEndJoinList()");
  410.     if (gJoinable_games) {
  411.         BrMemFree(gJoinable_games);
  412.     }
  413.     gJoinable_games = NULL;
  414. }
  415.  
  416. // IDA: int __usercall PDNetGetNextJoinGame@<EAX>(tNet_game_details *pGame@<EAX>, int pIndex@<EDX>)
  417. int PDNetGetNextJoinGame(tNet_game_details* pGame, int pIndex) {
  418.     static tU32 next_broadcast_time = 0;
  419.     int i;
  420.     int j;
  421.     int number_of_hosts_has_changed;
  422.     //char str[256]; // Pierre-Marie Baty -- unused variable
  423.     LOG_TRACE9("(%p, %d)", pGame, pIndex);
  424.  
  425.     dr_dprintf("PDNetGetNextJoinGame(): pIndex is %d", pIndex);
  426.     if (pIndex == 0) {
  427.         do {
  428.             number_of_hosts_has_changed = 0;
  429.             for (i = 0; i < gNumber_of_hosts; i++) {
  430.                 if (gJoinable_games[i].last_response + 10000 < (tU32) PDGetTotalTime()) { // Pierre-Marie Baty -- added type cast
  431.                     number_of_hosts_has_changed = 1;
  432.                     for (j = i; j < gNumber_of_hosts - 1; j++) {
  433.                         memcpy(&gJoinable_games[j], &gJoinable_games[j + 1], sizeof(tPD_net_game_info));
  434.                     }
  435.                 }
  436.             }
  437.             if (number_of_hosts_has_changed) {
  438.                 gNumber_of_hosts--;
  439.             }
  440.         } while (number_of_hosts_has_changed);
  441.         if ((tU32) PDGetTotalTime() > next_broadcast_time) { // Pierre-Marie Baty -- added type cast
  442.             next_broadcast_time = PDGetTotalTime() + 3000;
  443.             MakeMessageToSend(1);
  444.             if (BroadcastMessage() == 0) {
  445.                 dr_dprintf("PDNetGetNextJoinGame(): Error on BroadcastMessage()");
  446.             }
  447.         }
  448.     }
  449.     ReceiveHostResponses();
  450.     if (gNumber_of_hosts <= pIndex) {
  451.         return 0;
  452.     }
  453.     dr_dprintf("PDNetGetNextJoinGame(): Adding game.");
  454.     memcpy(&pGame->pd_net_info.addr_in, &gJoinable_games[pIndex].addr_in, sizeof(pGame->pd_net_info.addr_in));
  455.     return 1;
  456. }
  457.  
  458. // IDA: void __usercall PDNetDisposeGameDetails(tNet_game_details *pDetails@<EAX>)
  459. void PDNetDisposeGameDetails(tNet_game_details* pDetails) {
  460.     LOG_TRACE("(%p)", pDetails);
  461.     NOT_IMPLEMENTED();
  462. }
  463.  
  464. // IDA: int __usercall PDNetHostGame@<EAX>(tNet_game_details *pDetails@<EAX>, char *pHost_name@<EDX>, void **pHost_address@<EBX>)
  465. int PDNetHostGame(tNet_game_details* pDetails, char* pHost_name, void** pHost_address) {
  466.     LOG_TRACE("(%p, \"%s\", %p)", pDetails, pHost_name, pHost_address);
  467.  
  468.     dr_dprintf("PDNetHostGame()");
  469.     *pHost_address = &gLocal_addr;
  470.     return 1;
  471. }
  472.  
  473. // IDA: int __usercall PDNetJoinGame@<EAX>(tNet_game_details *pDetails@<EAX>, char *pPlayer_name@<EDX>)
  474. int PDNetJoinGame(tNet_game_details* pDetails, char* pPlayer_name) {
  475.     LOG_TRACE("(%p, \"%s\")", pDetails, pPlayer_name);
  476.  
  477.     dr_dprintf("PDNetJoinGame()");
  478.     return 0;
  479. }
  480.  
  481. // IDA: void __usercall PDNetLeaveGame(tNet_game_details *pDetails@<EAX>)
  482. void PDNetLeaveGame(tNet_game_details* pDetails) {
  483.     LOG_TRACE("(%p)", pDetails);
  484.  
  485.     dr_dprintf("PDNetLeaveGame()");
  486. }
  487.  
  488. // IDA: void __usercall PDNetHostFinishGame(tNet_game_details *pDetails@<EAX>)
  489. void PDNetHostFinishGame(tNet_game_details* pDetails) {
  490.     LOG_TRACE("(%p)", pDetails);
  491.  
  492.     dr_dprintf("PDNetHostFinishGame()");
  493. }
  494.  
  495. // IDA: tU32 __usercall PDNetExtractGameID@<EAX>(tNet_game_details *pDetails@<EAX>)
  496. tU32 PDNetExtractGameID(tNet_game_details* pDetails) {
  497.     LOG_TRACE("(%p)", pDetails);
  498.  
  499.     dr_dprintf("PDNetExtractGameID()");
  500.     return ntohs(pDetails->pd_net_info.addr_in.sin_port); // PDGetTotalTime();
  501. }
  502.  
  503. // IDA: tPlayer_ID __usercall PDNetExtractPlayerID@<EAX>(tNet_game_details *pDetails@<EAX>)
  504. tPlayer_ID PDNetExtractPlayerID(tNet_game_details* pDetails) {
  505.     LOG_TRACE("(%p)", pDetails);
  506.  
  507.     dr_dprintf("PDNetExtractPlayerID()");
  508.     return ntohs(gLocal_addr_ipx->sin_port);
  509. }
  510.  
  511. // IDA: void __usercall PDNetObtainSystemUserName(char *pName@<EAX>, int pMax_length@<EDX>)
  512. void PDNetObtainSystemUserName(char* pName, int pMax_length) {
  513.     int result;
  514.     char* found;
  515.     dr_dprintf("PDNetObtainSystemUserName()");
  516.  
  517.     result = gethostname(pName, pMax_length);
  518.     if (result == 0) {
  519.     }
  520.  
  521.     while (1) {
  522.         found = strpbrk(pName, "_=(){}[]<>!$%^&*/:@~;'#,?\\|`\"");
  523.         if (found == NULL) {
  524.             break;
  525.         }
  526.         *found = '-';
  527.     }
  528. }
  529.  
  530. // IDA: int __usercall PDNetSendMessageToPlayer@<EAX>(tNet_game_details *pDetails@<EAX>, tNet_message *pMessage@<EDX>, tPlayer_ID pPlayer@<EBX>)
  531. int PDNetSendMessageToPlayer(tNet_game_details* pDetails, tNet_message* pMessage, tPlayer_ID pPlayer) {
  532.     //char str[256]; // Pierre-Marie Baty -- unused variable
  533.     // SOCKADDR_IPX_* remote_addr_ipx;
  534.     LOG_TRACE("(%p, %p, %d)", pDetails, pMessage, pPlayer);
  535.     NOT_IMPLEMENTED();
  536. }
  537.  
  538. // IDA: int __usercall PDNetSendMessageToAllPlayers@<EAX>(tNet_game_details *pDetails@<EAX>, tNet_message *pMessage@<EDX>)
  539. int PDNetSendMessageToAllPlayers(tNet_game_details* pDetails, tNet_message* pMessage) {
  540.     //char str[256]; // Pierre-Marie Baty -- unused variable
  541.     int i;
  542.     LOG_TRACE("(%p, %p)", pDetails, pMessage);
  543.  
  544.     for (i = 0; i < gNumber_of_net_players; ++i) {
  545.         if (i == gThis_net_player_index) {
  546.             continue;
  547.         }
  548.         if (sendto(gSocket, (const char*)pMessage, pMessage->overall_size, 0, (struct sockaddr*)&gNet_players[i].pd_net_info.addr_in, sizeof(gNet_players[i].pd_net_info.addr_in)) == -1) {
  549.             dr_dprintf("PDNetSendMessageToAllPlayers(): Error on sendto() - WSAGetLastError=%d", WSAGetLastError());
  550.             NetDisposeMessage(pDetails, pMessage);
  551.             return 1;
  552.         }
  553.     }
  554.     NetDisposeMessage(pDetails, pMessage);
  555.     return 0;
  556. }
  557.  
  558. // IDA: tNet_message* __usercall PDNetGetNextMessage@<EAX>(tNet_game_details *pDetails@<EAX>, void **pSender_address@<EDX>)
  559. tNet_message* PDNetGetNextMessage(tNet_game_details* pDetails, void** pSender_address) {
  560.     char* receive_buffer;
  561.     char str[256];
  562.     int msg_type;
  563.     LOG_TRACE("(%p, %p)", pDetails, pSender_address);
  564.  
  565.     char addr_str[32];
  566.     unsigned int sa_len;
  567.     int res;
  568.     tNet_message* msg;
  569.  
  570.     sa_len = sizeof(gRemote_addr);
  571.     msg = NetAllocateMessage(512);
  572.     receive_buffer = (char*)msg;
  573.     res = recvfrom(gSocket, receive_buffer, 512, 0, (struct sockaddr*)&gRemote_addr, &sa_len);
  574.     res = res != -1;
  575.     if (res == 0) {
  576.         res = WSAGetLastError() != WSAEWOULDBLOCK;
  577.         if (res) {
  578.             sprintf(str, "PDNetGetNextMessage(): Error on recvfrom() - WSAGetLastError=%d", res);
  579.             PDFatalError(str);
  580.         }
  581.     } else {
  582.         NetNowIPXLocalTarget2String(addr_str, gRemote_addr_ipx);
  583.         if (!SameEthernetAddress(gLocal_addr_ipx, gRemote_addr_ipx)) {
  584.             msg_type = GetMessageTypeFromMessage(receive_buffer);
  585.             switch (msg_type) {
  586.             case 1:
  587.                 if (gNet_mode == eNet_mode_host) {
  588.                     dr_dprintf("PDNetGetNextMessage(): Received '%s' from '%s', replying to joiner", receive_buffer, addr_str);
  589.                     MakeMessageToSend(2);
  590.                     if (sendto(gSocket, gSend_buffer, strlen(gSend_buffer) + 1, 0, (struct sockaddr*)&gRemote_addr, sizeof(gRemote_addr)) == -1) {
  591.                         dr_dprintf("PDNetGetNextMessage(): Error on sendto() - WSAGetLastError=%d", WSAGetLastError());
  592.                     }
  593.                 }
  594.                 break;
  595.             case 2:
  596.                 // no-op
  597.                 break;
  598.             default:
  599.                 dr_dprintf("PDNetGetNextMessage(): res is %d, received message type %d from '%s', passing up", res, msg->contents.header.type, addr_str);
  600.                 memcpy(&gLast_received_addr, gRemote_addr_ipx, sizeof(gLast_received_addr));
  601.                 *pSender_address = &gLast_received_addr;
  602.                 return msg;
  603.             }
  604.         }
  605.     }
  606.     msg->guarantee_number = 0;
  607.     NetDisposeMessage(pDetails, msg);
  608.     return 0;
  609. }
  610.  
  611. // IDA: tNet_message* __usercall PDNetAllocateMessage@<EAX>(tU32 pSize@<EAX>, tS32 pSize_decider@<EDX>)
  612. tNet_message* PDNetAllocateMessage(tU32 pSize, tS32 pSize_decider) {
  613.     LOG_TRACE("(%d, %d)", pSize, pSize_decider);
  614.     NOT_IMPLEMENTED();
  615. }
  616.  
  617. // IDA: void __usercall PDNetDisposeMessage(tNet_game_details *pDetails@<EAX>, tNet_message *pMessage@<EDX>)
  618. void PDNetDisposeMessage(tNet_game_details* pDetails, tNet_message* pMessage) {
  619.     LOG_TRACE("(%p, %p)", pDetails, pMessage);
  620.     NOT_IMPLEMENTED();
  621. }
  622.  
  623. // IDA: void __usercall PDNetSetPlayerSystemInfo(tNet_game_player_info *pPlayer@<EAX>, void *pSender_address@<EDX>)
  624. void PDNetSetPlayerSystemInfo(tNet_game_player_info* pPlayer, void* pSender_address) {
  625.     LOG_TRACE("(%p, %p)", pPlayer, pSender_address);
  626.  
  627.     dr_dprintf("PDNetSetPlayerSystemInfo()");
  628.     memcpy(&pPlayer->pd_net_info, pSender_address, sizeof(pPlayer->pd_net_info));
  629. }
  630.  
  631. // IDA: void __usercall PDNetDisposePlayer(tNet_game_player_info *pPlayer@<EAX>)
  632. void PDNetDisposePlayer(tNet_game_player_info* pPlayer) {
  633.     LOG_TRACE("(%p)", pPlayer);
  634.     NOT_IMPLEMENTED();
  635. }
  636.  
  637. // IDA: int __usercall PDNetSendMessageToAddress@<EAX>(tNet_game_details *pDetails@<EAX>, tNet_message *pMessage@<EDX>, void *pAddress@<EBX>)
  638. int PDNetSendMessageToAddress(tNet_game_details* pDetails, tNet_message* pMessage, void* pAddress) {
  639.     char str[256];
  640.     LOG_TRACE("(%p, %p, %p)", pDetails, pMessage, pAddress);
  641.  
  642.     NetNowIPXLocalTarget2String(str, (struct sockaddr_in*)pAddress);
  643.     if (pDetails->pd_net_info.addr_in.sin_port == 0) {
  644.         int i = 0;
  645.     }
  646.  
  647.     if (sendto(gSocket, (const char*)pMessage, pMessage->overall_size, 0, (const struct sockaddr*)pAddress, sizeof(struct sockaddr)) == -1) {
  648.         dr_dprintf("PDNetSendMessageToAddress(): Error on sendto() - WSAGetLastError=%d", WSAGetLastError());
  649.         NetDisposeMessage(pDetails, pMessage);
  650.         return 1;
  651.     }
  652.  
  653.     NetDisposeMessage(pDetails, pMessage);
  654.     return 0;
  655. }
  656.  
  657. // IDA: int __usercall PDNetInitClient@<EAX>(tNet_game_details *pDetails@<EAX>)
  658. int PDNetInitClient(tNet_game_details* pDetails) {
  659.     LOG_TRACE("(%p)", pDetails);
  660.     NOT_IMPLEMENTED();
  661. }
  662.  
  663. // IDA: int __cdecl PDNetGetHeaderSize()
  664. int PDNetGetHeaderSize(void) {
  665.     LOG_TRACE("()");
  666.  
  667.     return 0;
  668. }
  669.