63bd5be0 |
1 | /* FCE Ultra - NES/Famicom Emulator |
2 | * |
3 | * Copyright notice for this file: |
4 | * Copyright (C) 2001 LULU |
5 | * Copyright (C) 2002 Ben Parnell |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify |
8 | * it under the terms of the GNU General Public License as published by |
9 | * the Free Software Foundation; either version 2 of the License, or |
10 | * (at your option) any later version. |
11 | * |
12 | * This program is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * GNU General Public License for more details. |
16 | * |
17 | * You should have received a copy of the GNU General Public License |
18 | * along with this program; if not, write to the Free Software |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
20 | */ |
21 | |
22 | #include "sdl.h" |
23 | #include <SDL/SDL_net.h> |
24 | #include "sdl-netplay.h" |
25 | |
26 | char *netplayhost=0; |
27 | |
28 | static int tonowait; |
29 | |
30 | int Port=0xFCE; |
31 | int FDnetplay=0; |
32 | |
33 | |
34 | static SDLNet_SocketSet socketset = NULL; |
35 | static TCPsocket tcpsock = NULL, servsock = NULL; |
36 | |
37 | void cleanup(void) |
38 | { |
39 | if (tcpsock != NULL) { |
40 | SDLNet_TCP_DelSocket(socketset, tcpsock); |
41 | SDLNet_TCP_Close(tcpsock); |
42 | tcpsock = NULL; |
43 | } |
44 | if (servsock != NULL) { |
45 | SDLNet_TCP_DelSocket(socketset, servsock); |
46 | SDLNet_TCP_Close(servsock); |
47 | servsock = NULL; |
48 | } |
49 | if (socketset != NULL) { |
50 | SDLNet_FreeSocketSet(socketset); |
51 | socketset = NULL; |
52 | } |
53 | } |
54 | |
55 | int FCEUD_NetworkConnect(void) |
56 | { |
57 | IPaddress serverIP; |
58 | |
59 | tonowait=0; |
60 | |
61 | if (netplay == 2) { |
62 | /* client */ |
63 | printf("connecting to %s\n", netplayhost); |
64 | |
65 | SDLNet_ResolveHost(&serverIP, netplayhost, Port); |
66 | if (serverIP.host == INADDR_NONE) { |
67 | fprintf(stderr, "Couldn't connected to %s\n", netplayhost); |
68 | return -1; |
69 | } else { |
70 | tcpsock = SDLNet_TCP_Open(&serverIP); |
71 | if (tcpsock == NULL) { |
72 | fprintf(stderr, "Couldn't connected to %s\n", netplayhost); |
73 | return -1; |
74 | } |
75 | } |
76 | printf("connected to %s\n", netplayhost); |
77 | |
78 | socketset = SDLNet_AllocSocketSet(1); |
79 | if (socketset == NULL) { |
80 | fprintf(stderr, "Couldn't create socket set: %s\n", |
81 | SDLNet_GetError()); |
82 | return -1; |
83 | } |
84 | SDLNet_TCP_AddSocket(socketset, tcpsock); |
85 | |
86 | return 1; |
87 | } else { |
88 | /* server */ |
89 | |
90 | SDLNet_ResolveHost(&serverIP, NULL, Port); |
91 | printf("Server IP: %x, %d\n", serverIP.host, serverIP.port); |
92 | servsock = SDLNet_TCP_Open(&serverIP); |
93 | if (servsock == NULL) { |
94 | cleanup(); |
95 | fprintf(stderr, "Couldn't create server socket: %s\n", |
96 | SDLNet_GetError()); |
97 | return -1; |
98 | } |
99 | |
100 | socketset = SDLNet_AllocSocketSet(2); |
101 | if (socketset == NULL) { |
102 | fprintf(stderr, "Couldn't create socket set: %s\n", |
103 | SDLNet_GetError()); |
104 | return -1; |
105 | } |
106 | SDLNet_TCP_AddSocket(socketset, servsock); |
107 | |
108 | if (SDLNet_CheckSockets(socketset, ~0)) { |
109 | tcpsock = SDLNet_TCP_Accept(servsock); |
110 | if (tcpsock == NULL) { |
111 | return -1; |
112 | } |
113 | SDLNet_TCP_AddSocket(socketset, tcpsock); |
114 | |
115 | printf("OK, connected\n"); |
116 | return 1; |
117 | } |
118 | } |
119 | |
120 | return -1; |
121 | } |
122 | |
123 | void FCEUD_NetworkClose(void) |
124 | { |
125 | cleanup(); |
126 | } |
127 | |
128 | int FCEUD_NetworkRecvData(uint8 *data, uint32 len, int block) |
129 | { |
130 | if(block) |
131 | { |
132 | if(SDLNet_TCP_Recv(tcpsock, (void *) data, len)!=len) |
133 | { |
134 | cleanup(); |
135 | return(0); |
136 | } |
137 | switch(SDLNet_CheckSockets(socketset,0)) |
138 | { |
139 | case -1:return(0); |
140 | case 0:NoWaiting&=~2;tonowait=0;break; |
141 | default:if(tonowait>=3) |
142 | NoWaiting|=2; |
143 | else tonowait++; |
144 | break; |
145 | } |
146 | return(1); |
147 | } |
148 | else |
149 | { |
150 | int t=SDLNet_CheckSockets(socketset,0); |
151 | if(t<0) return(0); |
152 | if(!t) return(-1); |
153 | return(SDLNet_TCP_Recv(tcpsock, (void *) data, len)==len); |
154 | } |
155 | } |
156 | |
157 | /* 0 on failure, 1 on success. This function should always block. */ |
158 | int FCEUD_NetworkSendData(uint8 *Value, uint32 len) |
159 | { |
160 | if (tcpsock) |
161 | return(SDLNet_TCP_Send(tcpsock, (void *) Value, len)==len); |
162 | return 0; |
163 | } |