1 | |
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2 | /* |
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3 | * static char *rcsid_loop_c = |
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4 | * "$Id: loop.C,v 1.6 2006/09/10 13:43:33 root Exp $"; |
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5 | */ |
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6 | |
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7 | /* |
1 | /* |
8 | CrossFire, A Multiplayer game for X-windows |
2 | CrossFire, A Multiplayer game for X-windows |
9 | |
3 | |
10 | Copyright (C) 2002-2003 Mark Wedel & The Crossfire Development Team |
4 | Copyright (C) 2002-2003 Mark Wedel & The Crossfire Development Team |
11 | Copyright (C) 1992 Frank Tore Johansen |
5 | Copyright (C) 1992 Frank Tore Johansen |
… | |
… | |
22 | |
16 | |
23 | You should have received a copy of the GNU General Public License |
17 | You should have received a copy of the GNU General Public License |
24 | along with this program; if not, write to the Free Software |
18 | along with this program; if not, write to the Free Software |
25 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
26 | |
20 | |
27 | The author can be reached via e-mail to crossfire-devel@real-time.com |
21 | The author can be reached via e-mail to <crossfire@schmorp.de> |
28 | */ |
22 | */ |
29 | |
23 | |
30 | /** |
24 | /** |
31 | * \file |
25 | * \file |
32 | * Main client/server loops. |
26 | * Main client/server loops. |
… | |
… | |
38 | * The reading of data is handled in ericserver.c |
32 | * The reading of data is handled in ericserver.c |
39 | */ |
33 | */ |
40 | |
34 | |
41 | |
35 | |
42 | #include <global.h> |
36 | #include <global.h> |
43 | #ifndef __CEXTRACT__ |
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44 | # include <sproto.h> |
37 | #include <sproto.h> |
45 | # include <sockproto.h> |
38 | #include <sockproto.h> |
46 | #endif |
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47 | |
39 | |
48 | #ifndef WIN32 /* ---win32 exclude unix headers */ |
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49 | # include <sys/types.h> |
40 | #include <sys/types.h> |
50 | # include <sys/time.h> |
41 | #include <sys/time.h> |
51 | # include <sys/socket.h> |
42 | #include <sys/socket.h> |
52 | # include <netinet/in.h> |
43 | #include <netinet/in.h> |
53 | # include <netdb.h> |
44 | #include <netdb.h> |
54 | #endif /* end win32 */ |
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55 | |
45 | |
56 | #ifdef HAVE_UNISTD_H |
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57 | # include <unistd.h> |
46 | #include <unistd.h> |
58 | #endif |
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59 | |
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60 | #ifdef HAVE_ARPA_INET_H |
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61 | # include <arpa/inet.h> |
47 | #include <arpa/inet.h> |
62 | #endif |
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63 | |
48 | |
64 | #include <loader.h> |
49 | #include <loader.h> |
65 | #include <newserver.h> |
50 | #include <newserver.h> |
66 | |
51 | |
67 | /***************************************************************************** |
52 | /***************************************************************************** |
… | |
… | |
75 | * before player joins, and those happen after the player has joined. |
60 | * before player joins, and those happen after the player has joined. |
76 | * As such, we have function types that might be called, so |
61 | * As such, we have function types that might be called, so |
77 | * we end up having 2 tables. |
62 | * we end up having 2 tables. |
78 | */ |
63 | */ |
79 | |
64 | |
80 | typedef void (*func_uint8_int_ns) (char *, int, NewSocket *); |
65 | enum { |
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66 | PF_PLAYER = 0x01, // must have valid player |
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67 | PF_IMMEDIATE = 0x02, // TODO: hack, can be executed immediately |
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68 | PF_PLAYING = 0x04, // must be in playing state |
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69 | }; |
81 | |
70 | |
82 | struct NsCmdMapping |
71 | struct pkt_type |
83 | { |
72 | { |
84 | const char *cmdname; |
73 | const char *name; |
85 | func_uint8_int_ns cmdproc; |
74 | void *cb; |
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75 | int flags; |
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76 | |
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77 | bool may_execute (client_socket *ns) |
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78 | { |
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79 | return (!(flags & PF_PLAYER) || ns->pl) |
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80 | && (!(flags & PF_PLAYING) || (ns->pl && ns->pl->state == ST_PLAYING)); |
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81 | } |
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82 | |
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83 | void execute (client_socket *ns, char *data, int datalen) |
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84 | { |
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85 | //TODO: only one format |
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86 | if (flags & PF_PLAYER) |
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87 | ((void (*)(char *, int, player * ))cb)((char *)data, datalen, ns->pl); |
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88 | else |
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89 | ((void (*)(char *, int, client_socket *))cb)((char *)data, datalen, ns); |
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90 | } |
86 | }; |
91 | }; |
87 | |
92 | |
88 | typedef void (*func_uint8_int_pl) (char *, int, player *); |
93 | // SocketCommand, PlayingCommand, should not exist with those ugly casts |
89 | struct PlCmdMapping |
94 | #define SC(cb) (void *)static_cast<void (*)(char *, int, client_socket *)>(cb), |
90 | { |
95 | #define PC(cb) (void *)static_cast<void (*)(char *, int, player *)>(cb), PF_PLAYER | |
91 | const char *cmdname; |
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92 | func_uint8_int_pl cmdproc; |
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93 | uint8 flag; |
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94 | }; |
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95 | |
96 | |
96 | /** |
97 | /** |
97 | * Dispatch table for the server. |
98 | * Dispatch table for the server. |
98 | * |
99 | */ |
99 | * CmdMapping is the dispatch table for the server, used in HandleClient, |
100 | static struct pkt_type packets[] = { |
100 | * which gets called when the client has input. All commands called here |
101 | {"ncom", PC(NewPlayerCmd) PF_PLAYING }, |
101 | * use the same parameter form (char* data, int len, int clientnum. |
102 | {"command", PC(PlayerCmd) PF_PLAYING }, |
102 | * We do implicit casts, because the data that is being passed is |
103 | |
103 | * unsigned (pretty much needs to be for binary data), however, most |
104 | {"examine", PC(ExamineCmd) PF_PLAYING | PF_IMMEDIATE }, |
104 | * of these treat it only as strings, so it makes things easier |
105 | {"apply", PC(ApplyCmd) PF_PLAYING | PF_IMMEDIATE }, |
105 | * to cast it here instead of a bunch of times in the function itself. |
106 | {"reply", PC(ReplyCmd) PF_IMMEDIATE }, |
106 | * flag is 1 if the player must be in the playing state to issue the |
107 | {"lookat", PC(LookAt) PF_PLAYING | PF_IMMEDIATE }, |
107 | * command, 0 if they can issue it at any time. |
108 | {"lock", PC(LockItem) PF_PLAYING | PF_IMMEDIATE }, |
108 | */ |
109 | {"mark", PC(MarkItem) PF_PLAYING | PF_IMMEDIATE }, |
109 | static struct PlCmdMapping plcommands[] = { |
110 | {"move", PC(MoveCmd) PF_PLAYING | PF_IMMEDIATE }, |
110 | {"examine", ExamineCmd, 1}, |
111 | {"ext", PC(ExtCmd) PF_IMMEDIATE }, /* CF+ */ |
111 | {"apply", ApplyCmd, 1}, |
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112 | {"move", MoveCmd, 1}, |
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113 | {"reply", ReplyCmd, 0}, |
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114 | {"command", PlayerCmd, 1}, |
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115 | {"ncom", (func_uint8_int_pl) NewPlayerCmd, 1}, |
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116 | {"lookat", LookAt, 1}, |
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117 | {"lock", (func_uint8_int_pl) LockItem, 1}, |
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118 | {"mark", (func_uint8_int_pl) MarkItem, 1}, |
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119 | {"mapredraw", MapRedrawCmd, 0}, /* Added: phil */ |
112 | {"mapredraw", PC(MapRedrawCmd) PF_IMMEDIATE }, /* Added: phil */ |
120 | {"mapinfo", MapInfoCmd, 2}, /* CF+ */ |
113 | {"mapinfo", PC(MapInfoCmd) PF_IMMEDIATE }, /* CF+ */ |
121 | {"ext", ExtCmd, 2}, /* CF+ */ |
114 | |
122 | {NULL, NULL, 0} /* terminator */ |
115 | {"addme", SC(AddMeCmd) PF_IMMEDIATE }, |
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116 | {"askface", SC(SendFaceCmd) 0 }, /* Added: phil */ |
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117 | {"requestinfo", SC(RequestInfo) 0 }, |
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118 | {"setfacemode", SC(SetFaceMode) PF_IMMEDIATE }, |
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119 | {"setsound", SC(SetSound) PF_IMMEDIATE }, |
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120 | {"setup", SC(SetUp) PF_IMMEDIATE }, |
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121 | {"version", SC(VersionCmd) PF_IMMEDIATE }, |
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122 | {"toggleextendedinfos", SC(ToggleExtendedInfos) PF_IMMEDIATE }, /*Added: tchize */ |
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123 | {"toggleextendedtext", SC(ToggleExtendedText) PF_IMMEDIATE }, /*Added: tchize */ |
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124 | {"asksmooth", SC(AskSmooth) 0 }, /*Added: tchize (smoothing technologies) */ |
123 | }; |
125 | }; |
124 | |
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125 | /** Face-related commands */ |
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126 | static struct NsCmdMapping nscommands[] = { |
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127 | {"addme", AddMeCmd}, |
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128 | {"askface", SendFaceCmd}, /* Added: phil */ |
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129 | {"requestinfo", RequestInfo}, |
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130 | {"setfacemode", SetFaceMode}, |
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131 | {"setsound", SetSound}, |
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132 | {"setup", SetUp}, |
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133 | {"version", VersionCmd}, |
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134 | {"toggleextendedinfos", ToggleExtendedInfos}, /*Added: tchize */ |
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135 | {"toggleextendedtext", ToggleExtendedText}, /*Added: tchize */ |
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136 | {"asksmooth", AskSmooth}, /*Added: tchize (smoothing technologies) */ |
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137 | {NULL, NULL} /* terminator (I, II & III) */ |
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138 | }; |
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139 | |
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140 | /** |
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141 | * RequestInfo is sort of a meta command. There is some specific |
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142 | * request of information, but we call other functions to provide |
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143 | * that information. |
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144 | */ |
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145 | void |
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146 | RequestInfo (char *buf, int len, NewSocket * ns) |
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147 | { |
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148 | char *params = NULL, *cp; |
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149 | |
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150 | /* No match */ |
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151 | char bigbuf[MAX_BUF]; |
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152 | int slen; |
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153 | |
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154 | /* Set up replyinfo before we modify any of the buffers - this is used |
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155 | * if we don't find a match. |
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156 | */ |
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157 | strcpy (bigbuf, "replyinfo "); |
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158 | slen = strlen (bigbuf); |
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159 | safe_strcat (bigbuf, buf, &slen, MAX_BUF); |
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160 | |
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161 | /* find the first space, make it null, and update the |
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162 | * params pointer. |
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163 | */ |
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164 | for (cp = buf; *cp != '\0'; cp++) |
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165 | if (*cp == ' ') |
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166 | { |
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167 | *cp = '\0'; |
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168 | params = cp + 1; |
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169 | break; |
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170 | } |
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171 | if (!strcmp (buf, "image_info")) |
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172 | send_image_info (ns, params); |
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173 | else if (!strcmp (buf, "image_sums")) |
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174 | send_image_sums (ns, params); |
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175 | else if (!strcmp (buf, "skill_info")) |
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176 | send_skill_info (ns, params); |
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177 | else if (!strcmp (buf, "spell_paths")) |
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178 | send_spell_paths (ns, params); |
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179 | else |
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180 | Write_String_To_Socket (ns, bigbuf, len); |
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181 | } |
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182 | |
126 | |
183 | /** |
127 | /** |
184 | * Handle client input. |
128 | * Handle client input. |
185 | * |
129 | * |
186 | * HandleClient is actually not named really well - we only get here once |
130 | * HandleClient is actually not named really well - we only get here once |
… | |
… | |
189 | * with this socket, null if no player (one of the init_sockets for just |
133 | * with this socket, null if no player (one of the init_sockets for just |
190 | * starting a connection) |
134 | * starting a connection) |
191 | */ |
135 | */ |
192 | |
136 | |
193 | void |
137 | void |
194 | HandleClient (NewSocket * ns, player *pl) |
138 | HandleClient (client_socket *ns, player *pl) |
195 | { |
139 | { |
196 | int len = 0, i, cnt; |
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197 | char *data; |
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198 | |
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199 | /* Loop through this - maybe we have several complete packets here. */ |
140 | /* Loop through this - maybe we have several complete packets here. */ |
200 | // limit to a few commands only, though, as to not monopolise the server |
141 | // limit to a few commands only, though, as to not monopolise the server |
201 | for (cnt = 16; cnt--;) |
142 | for (int repeat = 16; repeat--;) |
202 | { |
143 | { |
203 | /* If it is a player, and they don't have any speed left, we |
144 | /* If it is a player, and they don't have any speed left, we |
204 | * return, and will read in the data when they do have time. |
145 | * return, and will read in the data when they do have time. |
205 | */ |
146 | */ |
206 | if (pl && pl->state == ST_PLAYING && pl->ob != NULL && pl->ob->speed_left < 0) |
147 | if (pl && pl->state == ST_PLAYING && pl->ob && pl->ob->speed_left < 0) |
207 | { |
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208 | return; |
148 | return; |
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149 | |
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150 | int pkt_len = ns->read_packet (); |
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151 | |
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152 | if (pkt_len < 0) |
209 | } |
153 | { |
210 | |
154 | LOG (llevError, "read error on player %s\n", &pl->ob->name); |
211 | i = SockList_ReadPacket (ns->fd, &ns->inbuf, MAXSOCKBUF - 1); |
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212 | |
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213 | if (i < 0) |
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214 | { |
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215 | #ifdef ESRV_DEBUG |
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216 | LOG (llevDebug, "HandleClient: Read error on connection player %s\n", (pl ? pl->ob->name : "None")); |
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217 | #endif |
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218 | /* Caller will take care of cleaning this up */ |
155 | /* Caller will take care of cleaning this up */ |
219 | ns->status = Ns_Dead; |
156 | ns->status = Ns_Dead; |
220 | return; |
157 | return; |
221 | } |
158 | } |
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159 | else if (pkt_len == 0) |
222 | /* Still dont have a full packet */ |
160 | /* Still dont have a full packet */ |
223 | if (i == 0) |
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224 | return; |
161 | return; |
225 | |
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226 | // //D//TODO//temporarily log long commands |
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227 | // if (ns->inbuf.len >= 40 && pl && pl->ob) |
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228 | // LOG (llevDebug, "HandleClient: long comamnd from <%s,%s> %d<%s>\n", pl->ob->name, ns->host, ns->inbuf.len, ns->inbuf.buf + 2); |
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229 | |
162 | |
230 | /* First, break out beginning word. There are at least |
163 | /* First, break out beginning word. There are at least |
231 | * a few commands that do not have any paremeters. If |
164 | * a few commands that do not have any paremeters. If |
232 | * we get such a command, don't worry about trying |
165 | * we get such a command, don't worry about trying |
233 | * to break it up. |
166 | * to break it up. |
234 | */ |
167 | */ |
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168 | int datalen; |
235 | data = (char *) strchr ((char *) ns->inbuf.buf + 2, ' '); |
169 | char *data = strchr ((char *)ns->inbuf + 2, ' '); |
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170 | |
236 | if (data) |
171 | if (data) |
237 | { |
172 | { |
238 | *data = '\0'; |
173 | *data++ = 0; |
239 | data++; |
174 | datalen = pkt_len - (data - (char *)ns->inbuf); |
240 | len = ns->inbuf.len - (data - (char *) ns->inbuf.buf); |
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241 | } |
175 | } |
242 | else |
176 | else |
243 | len = 0; |
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244 | |
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245 | ns->inbuf.buf[ns->inbuf.len] = '\0'; /* Terminate buffer - useful for string data */ |
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246 | for (i = 0; nscommands[i].cmdname != NULL; i++) |
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247 | { |
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248 | if (strcmp ((char *) ns->inbuf.buf + 2, nscommands[i].cmdname) == 0) |
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249 | { |
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250 | nscommands[i].cmdproc ((char *) data, len, ns); |
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251 | ns->inbuf.len = 0; |
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252 | return; //D// not doing this causes random memory corruption |
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253 | goto next_packet; |
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254 | } |
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255 | } |
177 | { |
256 | /* Player must be in the playing state or the flag on the |
178 | data = (char *)ns->inbuf + 2; // better read garbage than segfault |
257 | * the command must be zero for the user to use the command - |
179 | datalen = 0; |
258 | * otherwise, a player cam save, be in the play_again state, and |
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259 | * the map they were on gets swapped out, yet things that try to look |
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260 | * at the map causes a crash. If the command is valid, but |
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261 | * one they can't use, we still swallow it up. |
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262 | */ |
180 | } |
263 | if (pl) |
181 | |
264 | for (i = 0; plcommands[i].cmdname != NULL; i++) |
182 | ns->inbuf [pkt_len] = 0; /* Terminate buffer - useful for string data */ |
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183 | |
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184 | for (pkt_type *pkt = packets; pkt < packets + (sizeof (packets) / sizeof (packets[0])); ++pkt) |
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185 | if (!strcmp ((char *)ns->inbuf + 2, pkt->name)) |
265 | { |
186 | { |
266 | if (strcmp ((char *) ns->inbuf.buf + 2, plcommands[i].cmdname) == 0) |
187 | if (pkt->may_execute (ns)) |
267 | { |
188 | { |
268 | if (pl->state == ST_PLAYING || !(plcommands[i].flag & 1)) |
189 | pkt->execute (ns, data, datalen); |
269 | plcommands[i].cmdproc ((char *) data, len, pl); |
190 | ns->skip_packet (pkt_len); |
270 | ns->inbuf.len = 0; |
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271 | //D// not doing this causes random memory corruption |
191 | //D//TODO not doing this causes random memory corruption |
272 | if (plcommands[i].flag & 2) |
192 | if (pkt->flags & PF_IMMEDIATE) |
273 | goto next_packet; |
193 | goto next_packet; |
274 | return; |
194 | return; |
275 | } |
195 | } |
276 | } |
196 | } |
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197 | |
277 | /* If we get here, we didn't find a valid command. Logging |
198 | /* If we get here, we didn't find a valid command. Logging |
278 | * this might be questionable, because a broken client/malicious |
199 | * this might be questionable, because a broken client/malicious |
279 | * user could certainly send a whole bunch of invalid commands. |
200 | * user could certainly send a whole bunch of invalid commands. |
280 | */ |
201 | */ |
281 | LOG (llevDebug, "Bad command from client (%s)\n", ns->inbuf.buf + 2); |
202 | LOG (llevDebug, "Bad command from client (%s)\n", ns->inbuf + 2); |
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203 | ns->skip_packet (pkt_len); |
282 | next_packet: |
204 | next_packet: |
283 | ; |
205 | ; |
284 | } |
206 | } |
285 | } |
207 | } |
286 | |
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287 | |
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288 | /***************************************************************************** |
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289 | * |
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290 | * Low level socket looping - select calls and watchdog udp packet |
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291 | * sending. |
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292 | * |
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293 | ******************************************************************************/ |
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294 | |
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295 | #ifdef WATCHDOG |
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296 | |
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297 | /** |
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298 | * Tell watchdog that we are still alive |
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299 | * |
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300 | * I put the function here since we should hopefully already be getting |
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301 | * all the needed include files for socket support |
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302 | */ |
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303 | |
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304 | void |
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305 | watchdog (void) |
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306 | { |
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307 | static int fd = -1; |
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308 | static struct sockaddr_in insock; |
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309 | |
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310 | if (fd == -1) |
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311 | { |
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312 | struct protoent *protoent; |
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313 | |
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314 | if ((protoent = getprotobyname ("udp")) == NULL || (fd = socket (PF_INET, SOCK_DGRAM, protoent->p_proto)) == -1) |
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315 | { |
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316 | return; |
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317 | } |
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318 | insock.sin_family = AF_INET; |
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319 | insock.sin_port = htons ((unsigned short) 13325); |
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320 | insock.sin_addr.s_addr = inet_addr ("127.0.0.1"); |
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321 | } |
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322 | sendto (fd, (void *) &fd, 1, 0, (struct sockaddr *) &insock, sizeof (insock)); |
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323 | } |
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324 | #endif |
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325 | |
208 | |
326 | void |
209 | void |
327 | flush_sockets (void) |
210 | flush_sockets (void) |
328 | { |
211 | { |
329 | player *pl; |
212 | for (sockvec::iterator i = client_sockets.begin (); i != client_sockets.end (); ++i) |
330 | |
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331 | for (pl = first_player; pl != NULL; pl = pl->next) |
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332 | if (pl->socket.status != Ns_Dead) |
213 | if ((*i)->status != Ns_Dead) |
333 | Socket_Flush (&pl->socket); |
214 | (*i)->flush (); |
334 | } |
215 | } |
335 | |
216 | |
336 | /** |
217 | /** |
337 | * This checks the sockets for input and exceptions, does the right thing. |
218 | * This checks the sockets for input, does the right thing. |
338 | * |
219 | * |
339 | * A bit of this code is grabbed out of socket.c |
220 | * A bit of this code is grabbed out of socket.c |
340 | * There are 2 lists we need to look through - init_sockets is a list |
221 | * There are 2 lists we need to look through - init_sockets is a list |
341 | * |
222 | * |
342 | */ |
223 | */ |
343 | void |
224 | void |
344 | doeric_server (void) |
225 | doeric_server (void) |
345 | { |
226 | { |
346 | int i, pollret; |
227 | int i, pollret; |
347 | fd_set tmp_read, tmp_exceptions, tmp_write; |
228 | fd_set tmp_read; |
348 | struct sockaddr_in addr; |
229 | struct sockaddr_in addr; |
349 | socklen_t addrlen = sizeof (struct sockaddr); |
230 | socklen_t addrlen = sizeof (struct sockaddr); |
350 | player *pl, *next; |
231 | player *pl, *next; |
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232 | int maxfd = 0; |
351 | |
233 | |
352 | #ifdef CS_LOGSTATS |
234 | #ifdef CS_LOGSTATS |
353 | if ((time (NULL) - cst_lst.time_start) >= CS_LOGTIME) |
235 | if ((time (NULL) - cst_lst.time_start) >= CS_LOGTIME) |
354 | write_cs_stats (); |
236 | write_cs_stats (); |
355 | #endif |
237 | #endif |
356 | |
238 | |
357 | FD_ZERO (&tmp_read); |
|
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358 | FD_ZERO (&tmp_write); |
|
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359 | FD_ZERO (&tmp_exceptions); |
|
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360 | |
|
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361 | for (i = 0; i < socket_info.allocated_sockets; i++) |
|
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362 | { |
|
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363 | if (init_sockets[i].status == Ns_Dead) |
|
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364 | { |
|
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365 | free_newsocket (&init_sockets[i]); |
|
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366 | init_sockets[i].status = Ns_Avail; |
|
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367 | socket_info.nconns--; |
|
|
368 | } |
|
|
369 | else if (init_sockets[i].status != Ns_Avail) |
|
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370 | { |
|
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371 | FD_SET ((uint32) init_sockets[i].fd, &tmp_read); |
|
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372 | FD_SET ((uint32) init_sockets[i].fd, &tmp_write); |
|
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373 | FD_SET ((uint32) init_sockets[i].fd, &tmp_exceptions); |
|
|
374 | } |
|
|
375 | } |
|
|
376 | |
|
|
377 | /* Go through the players. Let the loop set the next pl value, |
239 | /* Go through the players. Let the loop set the next pl value, |
378 | * since we may remove some |
240 | * since we may remove some |
379 | */ |
241 | */ |
|
|
242 | //TODO: must be handled cleanly elsewhere |
380 | for (pl = first_player; pl != NULL;) |
243 | for (pl = first_player; pl; ) |
381 | { |
244 | { |
|
|
245 | player *npl = pl->next; |
|
|
246 | |
|
|
247 | //TODO: must be handled cleanly elsewhere |
382 | if (pl->socket.status == Ns_Dead) |
248 | if (pl->socket->status == Ns_Dead) |
383 | { |
249 | { |
384 | player *npl = pl->next; |
|
|
385 | |
|
|
386 | save_player (pl->ob, 0); |
250 | save_player (pl->ob, 0); |
|
|
251 | |
387 | if (!QUERY_FLAG (pl->ob, FLAG_REMOVED)) |
252 | if (!QUERY_FLAG (pl->ob, FLAG_REMOVED)) |
388 | { |
253 | { |
389 | terminate_all_pets (pl->ob); |
254 | terminate_all_pets (pl->ob); |
390 | remove_ob (pl->ob); |
255 | pl->ob->remove (); |
391 | } |
256 | } |
|
|
257 | |
392 | leave (pl, 1); |
258 | leave (pl, 1); |
393 | final_free_player (pl); |
259 | final_free_player (pl); |
|
|
260 | } |
|
|
261 | |
394 | pl = npl; |
262 | pl = npl; |
|
|
263 | } |
|
|
264 | |
|
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265 | FD_ZERO (&tmp_read); |
|
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266 | |
|
|
267 | for (sockvec::iterator i = client_sockets.begin (); i != client_sockets.end (); ) |
|
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268 | { |
|
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269 | client_socket *s = *i; |
|
|
270 | |
|
|
271 | if (s->status == Ns_Dead) |
|
|
272 | { |
|
|
273 | client_sockets.erase (i); |
|
|
274 | delete s; |
395 | } |
275 | } |
396 | else |
276 | else |
397 | { |
277 | { |
|
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278 | if (s->fd > maxfd) maxfd = s->fd; |
|
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279 | |
398 | FD_SET ((uint32) pl->socket.fd, &tmp_read); |
280 | FD_SET (s->fd, &tmp_read); |
399 | FD_SET ((uint32) pl->socket.fd, &tmp_write); |
|
|
400 | FD_SET ((uint32) pl->socket.fd, &tmp_exceptions); |
|
|
401 | pl = pl->next; |
|
|
402 | } |
|
|
403 | } |
|
|
404 | |
281 | |
405 | /* Reset timeout each time, since some OS's will change the values on |
282 | ++i; |
406 | * the return from select. |
283 | } |
407 | */ |
284 | } |
|
|
285 | |
|
|
286 | struct timeval timeout; |
|
|
287 | |
408 | socket_info.timeout.tv_sec = 0; |
288 | timeout.tv_sec = 0; |
409 | socket_info.timeout.tv_usec = 0; |
289 | timeout.tv_usec = 0; |
410 | |
290 | |
411 | pollret = select (socket_info.max_filedescriptor, &tmp_read, &tmp_write, &tmp_exceptions, &socket_info.timeout); |
291 | pollret = select (maxfd + 1, |
|
|
292 | &tmp_read, 0, 0, |
|
|
293 | &timeout); |
412 | |
294 | |
413 | if (pollret == -1) |
295 | if (pollret == -1) |
414 | { |
296 | { |
415 | LOG (llevError, "select failed: %s\n", strerror (errno)); |
297 | LOG (llevError, "select failed: %s\n", strerror (errno)); |
416 | return; |
298 | return; |
417 | } |
299 | } |
418 | |
300 | |
419 | /* We need to do some of the processing below regardless */ |
301 | /* We need to do some of the processing below regardless */ |
420 | |
302 | |
421 | /* if (!pollret) return;*/ |
303 | /* Check for any input on the sockets */ |
422 | |
304 | for (sockvec::iterator i = client_sockets.begin (); i != client_sockets.end (); ++i) |
423 | /* Following adds a new connection */ |
|
|
424 | if (pollret && FD_ISSET (init_sockets[0].fd, &tmp_read)) |
|
|
425 | { |
305 | { |
426 | int newsocknum = 0; |
306 | client_socket *s = *i; |
|
|
307 | player *pl = s->pl; |
427 | |
308 | |
428 | #ifdef ESRV_DEBUG |
309 | //TODO: disassociate handleclient from socket readin |
429 | LOG (llevDebug, "doeric_server: New Connection\n"); |
310 | if (s->inbuf_len || FD_ISSET (s->fd, &tmp_read)) |
430 | #endif |
311 | HandleClient (s, pl); |
431 | /* If this is the case, all sockets currently in used */ |
312 | |
432 | if (socket_info.allocated_sockets <= socket_info.nconns) |
313 | //TODO: should not be done here, either |
433 | { |
314 | if (s->status != Ns_Dead && pl) |
434 | init_sockets = (NewSocket *) realloc (init_sockets, sizeof (NewSocket) * (socket_info.nconns + 1)); |
|
|
435 | if (!init_sockets) |
|
|
436 | fatal (OUT_OF_MEMORY); |
|
|
437 | newsocknum = socket_info.allocated_sockets; |
|
|
438 | socket_info.allocated_sockets++; |
|
|
439 | init_sockets[newsocknum].faces_sent_len = nrofpixmaps; |
|
|
440 | init_sockets[newsocknum].faces_sent = (uint8 *) malloc (nrofpixmaps * sizeof (*init_sockets[newsocknum].faces_sent)); |
|
|
441 | if (!init_sockets[newsocknum].faces_sent) |
|
|
442 | fatal (OUT_OF_MEMORY); |
|
|
443 | init_sockets[newsocknum].status = Ns_Avail; |
|
|
444 | } |
315 | { |
445 | else |
316 | /* Update the players stats once per tick. More efficient than |
446 | { |
317 | * sending them whenever they change, and probably just as useful |
447 | int j; |
|
|
448 | |
|
|
449 | for (j = 1; j < socket_info.allocated_sockets; j++) |
|
|
450 | if (init_sockets[j].status == Ns_Avail) |
|
|
451 | { |
318 | */ |
452 | newsocknum = j; |
319 | esrv_update_stats (pl); |
453 | break; |
320 | if (pl->last_weight != -1 && pl->last_weight != WEIGHT (pl->ob)) |
454 | } |
|
|
455 | } |
|
|
456 | init_sockets[newsocknum].fd = accept (init_sockets[0].fd, (struct sockaddr *) &addr, &addrlen); |
|
|
457 | if (init_sockets[newsocknum].fd == -1) |
|
|
458 | { |
|
|
459 | LOG (llevError, "accept failed: %s\n", strerror (errno)); |
|
|
460 | } |
|
|
461 | else |
|
|
462 | { |
|
|
463 | char buf[MAX_BUF]; |
|
|
464 | long ip; |
|
|
465 | NewSocket *ns; |
|
|
466 | |
|
|
467 | ns = &init_sockets[newsocknum]; |
|
|
468 | |
|
|
469 | ip = ntohl (addr.sin_addr.s_addr); |
|
|
470 | sprintf (buf, "%ld.%ld.%ld.%ld", (ip >> 24) & 255, (ip >> 16) & 255, (ip >> 8) & 255, ip & 255); |
|
|
471 | |
|
|
472 | if (checkbanned (NULL, buf)) |
|
|
473 | { |
321 | { |
474 | LOG (llevInfo, "Banned host tried to connect: [%s]\n", buf); |
322 | esrv_update_item (UPD_WEIGHT, pl->ob, pl->ob); |
475 | close (init_sockets[newsocknum].fd); |
323 | if (pl->last_weight != WEIGHT (pl->ob)) |
476 | init_sockets[newsocknum].fd = -1; |
324 | LOG (llevError, "esrv_update_item(UPD_WEIGHT) did not set player weight: is %lu, should be %lu\n", |
|
|
325 | (unsigned long) pl->last_weight, WEIGHT (pl->ob)); |
477 | } |
326 | } |
478 | else |
|
|
479 | { |
|
|
480 | InitConnection (ns, buf); |
|
|
481 | socket_info.nconns++; |
|
|
482 | } |
|
|
483 | } |
|
|
484 | } |
|
|
485 | |
327 | |
486 | /* Check for any exceptions/input on the sockets */ |
328 | /* draw_client_map does sanity checking that map is |
487 | if (pollret) |
329 | * valid, so don't do it here. |
488 | for (i = 1; i < socket_info.allocated_sockets; i++) |
|
|
489 | { |
|
|
490 | if (init_sockets[i].status == Ns_Avail) |
|
|
491 | continue; |
|
|
492 | if (FD_ISSET (init_sockets[i].fd, &tmp_exceptions)) |
|
|
493 | { |
|
|
494 | free_newsocket (&init_sockets[i]); |
|
|
495 | init_sockets[i].status = Ns_Avail; |
|
|
496 | socket_info.nconns--; |
|
|
497 | continue; |
|
|
498 | } |
|
|
499 | if (FD_ISSET (init_sockets[i].fd, &tmp_read)) |
|
|
500 | { |
|
|
501 | HandleClient (&init_sockets[i], NULL); |
|
|
502 | } |
|
|
503 | if (FD_ISSET (init_sockets[i].fd, &tmp_write)) |
|
|
504 | { |
|
|
505 | init_sockets[i].can_write = 1; |
|
|
506 | } |
|
|
507 | } |
|
|
508 | |
|
|
509 | /* This does roughly the same thing, but for the players now */ |
|
|
510 | for (pl = first_player; pl != NULL; pl = next) |
|
|
511 | { |
|
|
512 | |
|
|
513 | next = pl->next; |
|
|
514 | if (pl->socket.status == Ns_Dead) |
|
|
515 | continue; |
|
|
516 | |
|
|
517 | if (FD_ISSET (pl->socket.fd, &tmp_write)) |
|
|
518 | { |
|
|
519 | if (!pl->socket.can_write) |
|
|
520 | { |
|
|
521 | #if 0 |
|
|
522 | LOG (llevDebug, "Player %s socket now write enabled\n", pl->ob->name); |
|
|
523 | #endif |
|
|
524 | pl->socket.can_write = 1; |
|
|
525 | write_socket_buffer (&pl->socket); |
|
|
526 | } |
|
|
527 | /* if we get an error on the write_socket buffer, no reason to |
|
|
528 | * continue on this socket. |
|
|
529 | */ |
330 | */ |
530 | if (pl->socket.status == Ns_Dead) |
|
|
531 | continue; |
|
|
532 | } |
|
|
533 | else |
|
|
534 | pl->socket.can_write = 0; |
|
|
535 | |
|
|
536 | if (FD_ISSET (pl->socket.fd, &tmp_exceptions)) |
|
|
537 | { |
|
|
538 | save_player (pl->ob, 0); |
|
|
539 | if (!QUERY_FLAG (pl->ob, FLAG_REMOVED)) |
|
|
540 | { |
|
|
541 | terminate_all_pets (pl->ob); |
|
|
542 | remove_ob (pl->ob); |
|
|
543 | } |
|
|
544 | leave (pl, 1); |
|
|
545 | final_free_player (pl); |
|
|
546 | } |
|
|
547 | else |
|
|
548 | { |
|
|
549 | HandleClient (&pl->socket, pl); |
|
|
550 | /* If the player has left the game, then the socket status |
|
|
551 | * will be set to this be the leave function. We don't |
|
|
552 | * need to call leave again, as it has already been called |
|
|
553 | * once. |
|
|
554 | */ |
|
|
555 | if (pl->socket.status == Ns_Dead) |
|
|
556 | { |
|
|
557 | save_player (pl->ob, 0); |
|
|
558 | if (!QUERY_FLAG (pl->ob, FLAG_REMOVED)) |
|
|
559 | { |
|
|
560 | terminate_all_pets (pl->ob); |
|
|
561 | remove_ob (pl->ob); |
|
|
562 | } |
|
|
563 | leave (pl, 1); |
|
|
564 | final_free_player (pl); |
|
|
565 | } |
|
|
566 | else |
|
|
567 | { |
|
|
568 | |
|
|
569 | /* Update the players stats once per tick. More efficient than |
|
|
570 | * sending them whenever they change, and probably just as useful |
|
|
571 | */ |
|
|
572 | esrv_update_stats (pl); |
|
|
573 | if (pl->last_weight != -1 && pl->last_weight != WEIGHT (pl->ob)) |
|
|
574 | { |
|
|
575 | esrv_update_item (UPD_WEIGHT, pl->ob, pl->ob); |
|
|
576 | if (pl->last_weight != WEIGHT (pl->ob)) |
|
|
577 | LOG (llevError, "esrv_update_item(UPD_WEIGHT) did not set player weight: is %lu, should be %lu\n", |
|
|
578 | (unsigned long) pl->last_weight, WEIGHT (pl->ob)); |
|
|
579 | } |
|
|
580 | /* draw_client_map does sanity checking that map is |
|
|
581 | * valid, so don't do it here. |
|
|
582 | */ |
|
|
583 | draw_client_map (pl->ob); |
331 | draw_client_map (pl->ob); |
584 | if (pl->socket.update_look) |
332 | if (s->update_look) |
585 | esrv_draw_look (pl->ob); |
333 | esrv_draw_look (pl->ob); |
586 | } |
|
|
587 | } |
334 | } |
588 | } |
335 | } |
589 | } |
336 | } |
|
|
337 | |