1 | /* |
1 | /* |
2 | * CrossFire, A Multiplayer game for X-windows |
2 | * This file is part of Deliantra, the Roguelike Realtime MMORPG. |
3 | * |
3 | * |
4 | * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team |
4 | * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
5 | * Copyright (C) 1992 Frank Tore Johansen |
5 | * Copyright (©) 1992,2007 Frank Tore Johansen |
6 | * |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify |
7 | * Deliantra is free software: you can redistribute it and/or modify it under |
8 | * it under the terms of the GNU General Public License as published by |
8 | * the terms of the Affero GNU General Public License as published by the |
9 | * the Free Software Foundation; either version 2 of the License, or |
9 | * Free Software Foundation, either version 3 of the License, or (at your |
10 | * (at your option) any later version. |
10 | * option) any later version. |
11 | * |
11 | * |
12 | * This program is distributed in the hope that it will be useful, |
12 | * This program is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * GNU General Public License for more details. |
15 | * GNU General Public License for more details. |
16 | * |
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17 | * You should have received a copy of the GNU General Public License |
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18 | * along with this program; if not, write to the Free Software |
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19 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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20 | * |
16 | * |
21 | * The author can be reached via e-mail to mark@pyramid.com |
17 | * You should have received a copy of the Affero GNU General Public License |
22 | */ |
18 | * and the GNU General Public License along with this program. If not, see |
23 | |
19 | * <http://www.gnu.org/licenses/>. |
24 | /** |
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25 | * \file |
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26 | * Low-level socket-related functions. |
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27 | * |
20 | * |
28 | * \date 2003-12-02 |
21 | * The authors can be reached via e-mail to <support@deliantra.net> |
29 | * |
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30 | * Contains some base functions that both the client and server |
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31 | * can use. As such, depending what we are being compiled for will |
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32 | * determine what we can include. the client is designed have |
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33 | * CFCLIENT defined as part of its compile flags. |
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34 | */ |
22 | */ |
35 | |
23 | |
36 | using namespace std; |
24 | using namespace std; |
37 | |
25 | |
38 | #include <global.h> |
26 | #include <global.h> |
39 | #include <sproto.h> |
27 | #include <sproto.h> |
40 | #include <cstdarg> |
28 | #include <cstdarg> |
41 | |
29 | |
42 | #ifdef __linux__ |
30 | #if HAVE_TCP_INFO |
43 | # include <sys/types.h> |
31 | # include <sys/types.h> |
44 | # include <sys/socket.h> |
32 | # include <sys/socket.h> |
45 | # include <netinet/in.h> |
33 | # include <netinet/in.h> |
46 | # include <netinet/tcp.h> |
34 | # include <netinet/tcp.h> |
47 | #endif |
35 | #endif |
48 | |
36 | |
49 | // use a really low timeout, as it doesn't cost any bandwidth, and you can |
37 | // force a packet when idle for more than this many seconds, |
50 | // easily die in 20 seconds... |
38 | // forcing an ack regularly. |
51 | #define SOCKET_TIMEOUT1 10 * 1000 |
39 | #define IDLE_PING 2. |
52 | #define SOCKET_TIMEOUT2 20 * 1000 |
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53 | |
40 | |
54 | void |
41 | void |
55 | client::flush () |
42 | client::flush () |
56 | { |
43 | { |
57 | if (destroyed ()) |
44 | if (destroyed ()) |
58 | return; |
45 | return; |
59 | |
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60 | #ifdef __linux__ |
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61 | // check time of last ack, and, if too old, kill connection |
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62 | struct tcp_info tcpi; |
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63 | socklen_t len = sizeof (tcpi); |
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64 | |
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65 | if (!getsockopt (fd, IPPROTO_TCP, TCP_INFO, &tcpi, &len) && len == sizeof (tcpi)) |
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66 | { |
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67 | unsigned int diff = tcpi.tcpi_last_ack_recv - tcpi.tcpi_last_data_sent; |
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68 | |
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69 | rtt = tcpi.tcpi_rtt; |
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70 | rttvar = tcpi.tcpi_rttvar; |
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71 | |
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72 | if (tcpi.tcpi_unacked && SOCKET_TIMEOUT1 < diff && diff < 0x80000000UL // ack delayed for 20s |
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73 | && SOCKET_TIMEOUT2 < tcpi.tcpi_last_data_sent) // no data sent for 10s |
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74 | { |
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75 | LOG (llevDebug, "Connection on fd %d closed due to ack timeout (%u/%u/%u)\n", fd, |
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76 | (unsigned) tcpi.tcpi_last_ack_recv, (unsigned) tcpi.tcpi_last_data_sent, (unsigned) tcpi.tcpi_unacked); |
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77 | destroy (); |
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78 | } |
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79 | } |
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80 | #endif |
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81 | |
46 | |
82 | /** |
47 | /** |
83 | * Writes data to socket. |
48 | * Writes data to socket. |
84 | * |
49 | * |
85 | * When the socket is clear to write, and we have backlogged data, this |
50 | * When the socket is clear to write, and we have backlogged data, this |
86 | * is called to write it out. |
51 | * is called to write it out. |
87 | */ |
52 | */ |
88 | |
53 | |
89 | if (!outputbuffer.len || socket_ev.poll () & PE_W) |
54 | // write a nop to the socket at least every IDLE_NOP seconds. |
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55 | if (!outputbuffer.len) |
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56 | { |
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57 | if (last_send + IDLE_PING <= NOW && pl && pl->active) |
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58 | { |
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59 | // this is a bit ugly, but map1/map1a seem to be the only |
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60 | // nop'able commands and they are quite small. |
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61 | packet sl (mapmode == Map1Cmd ? "map1" : "map1a"); |
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62 | send_packet (sl); |
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63 | } |
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64 | else |
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65 | return; |
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66 | } |
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67 | |
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68 | if (socket_ev.poll () & EV_WRITE) |
90 | return; |
69 | return; |
91 | |
70 | |
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71 | last_send = NOW; |
92 | write_outputbuffer (); |
72 | write_outputbuffer (); |
93 | } |
73 | } |
94 | |
74 | |
95 | void |
75 | void |
96 | client::write_outputbuffer () |
76 | client::write_outputbuffer () |
… | |
… | |
106 | /* wrap back to start of buffer */ |
86 | /* wrap back to start of buffer */ |
107 | if (outputbuffer.start == SOCKETBUFSIZE) |
87 | if (outputbuffer.start == SOCKETBUFSIZE) |
108 | outputbuffer.start = 0; |
88 | outputbuffer.start = 0; |
109 | |
89 | |
110 | outputbuffer.len -= res; |
90 | outputbuffer.len -= res; |
111 | #ifdef CS_LOGSTATS |
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112 | cst_tot.obytes += res; |
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113 | cst_lst.obytes += res; |
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114 | #endif |
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115 | } |
91 | } |
116 | else if (res == 0) |
92 | else if (res == 0) |
117 | { |
93 | { |
118 | LOG (llevError, "socket write failed, connection closed.\n"); |
94 | LOG (llevError, "socket write failed, connection closed.\n"); |
119 | destroy (); |
95 | destroy (); |
… | |
… | |
124 | // just retry |
100 | // just retry |
125 | } |
101 | } |
126 | else if (errno == EAGAIN) |
102 | else if (errno == EAGAIN) |
127 | { |
103 | { |
128 | // delay till ready |
104 | // delay till ready |
129 | socket_ev.poll (socket_ev.poll () | PE_W); |
105 | socket_ev.poll (socket_ev.poll () | EV_WRITE); |
130 | socket_ev.start (); |
106 | socket_ev.start (); |
131 | return; |
107 | return; |
132 | } |
108 | } |
133 | else |
109 | else |
134 | { |
110 | { |
… | |
… | |
136 | destroy (); |
112 | destroy (); |
137 | return; |
113 | return; |
138 | } |
114 | } |
139 | } |
115 | } |
140 | |
116 | |
141 | socket_ev.poll (socket_ev.poll () & ~PE_W); |
117 | socket_ev.poll (socket_ev.poll () & ~EV_WRITE); |
142 | } |
118 | } |
143 | |
119 | |
144 | /****************************************************************************** |
120 | /****************************************************************************** |
145 | * |
121 | * |
146 | * Start of read routines. |
122 | * Start of read routines. |
… | |
… | |
157 | if (inbuf_len >= 2 + pkt_len) |
133 | if (inbuf_len >= 2 + pkt_len) |
158 | return 2 + pkt_len; |
134 | return 2 + pkt_len; |
159 | |
135 | |
160 | if (inbuf_len == sizeof (inbuf)) |
136 | if (inbuf_len == sizeof (inbuf)) |
161 | { |
137 | { |
162 | send_packet_printf ("drawinfo %d input buffer overflow - closing connection.", NDI_RED); |
138 | send_packet_printf ("drawinfo %d input buffer overflow - closing connection.", NDI_RED | NDI_REPLY); |
163 | destroy (); |
139 | destroy (); |
164 | return -1; |
140 | return -1; |
165 | } |
141 | } |
166 | } |
142 | } |
167 | |
143 | |
… | |
… | |
186 | |
162 | |
187 | /** |
163 | /** |
188 | * Dispatch table for the server. |
164 | * Dispatch table for the server. |
189 | */ |
165 | */ |
190 | static struct packet_type packets[] = { |
166 | static struct packet_type packets[] = { |
191 | {"ncom", PC(NewPlayerCmd) PF_PLAYING }, |
167 | {"ncom", PC(NewPlayerCmd) PF_PLAYING | PF_COMMAND6 }, |
192 | {"command", PC(PlayerCmd) PF_PLAYING }, |
168 | {"command", PC(PlayerCmd) PF_PLAYING | PF_COMMAND0 }, |
193 | |
169 | |
194 | {"examine", PC(ExamineCmd) PF_PLAYING }, |
170 | {"examine", PC(ExamineCmd) PF_PLAYING }, |
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171 | {"ex", PC(ExCmd) PF_PLAYING }, |
195 | {"apply", PC(ApplyCmd) PF_PLAYING }, |
172 | {"apply", PC(ApplyCmd) PF_PLAYING }, |
196 | {"lookat", PC(LookAt) PF_PLAYING }, |
173 | {"lookat", PC(LookAt) PF_PLAYING }, |
197 | {"lock", PC(LockItem) PF_PLAYING }, |
174 | {"lock", PC(LockItem) PF_PLAYING }, |
198 | {"mark", PC(MarkItem) PF_PLAYING }, |
175 | {"mark", PC(MarkItem) PF_PLAYING }, |
199 | {"move", PC(MoveCmd) PF_PLAYING }, |
176 | {"move", PC(MoveCmd) PF_PLAYING }, |
200 | {"ext", PC(ExtCmd) 0 }, /* CF+ */ |
177 | {"ext", PC(ExtCmd) 0 }, // CF+ |
201 | {"mapredraw", PC(MapRedrawCmd) 0 }, /* Added: phil */ |
178 | {"mapredraw", PC(MapRedrawCmd) 0 }, |
202 | {"mapinfo", PC(MapInfoCmd) 0 }, /* CF+ */ |
179 | {"mapinfo", PC(MapInfoCmd) 0 }, // CF+ |
203 | |
180 | |
204 | {"reply", SC(ReplyCmd) 0 }, |
181 | {"reply", SC(ReplyCmd) 0 }, |
205 | {"exti", SC(ExtiCmd) 0 }, /* CF+ */ |
182 | {"exti", SC(ExtiCmd) 0 }, // CF+ |
206 | {"addme", SC(AddMeCmd) 0 }, |
183 | {"addme", SC(AddMeCmd) 0 }, |
207 | {"askface", SC(SendFaceCmd) 0 }, /* Added: phil */ |
184 | {"askface", SC(AskFaceCmd) 0 }, |
208 | {"requestinfo", SC(RequestInfo) 0 }, |
185 | {"requestinfo", SC(RequestInfo) 0 }, |
209 | {"setfacemode", SC(SetFaceMode) 0 }, |
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210 | {"setsound", SC(SetSound) 0 }, |
186 | {"setsound", SC(SetSound) 0 }, |
211 | {"setup", SC(SetUp) 0 }, |
187 | {"setup", SC(SetUp) 0 }, |
212 | {"version", SC(VersionCmd) 0 }, |
188 | {"version", SC(VersionCmd) 0 }, |
213 | {"toggleextendedinfos", SC(ToggleExtendedInfos) 0 }, /*Added: tchize */ |
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214 | {"toggleextendedtext", SC(ToggleExtendedText) 0 }, /*Added: tchize */ |
189 | {"toggleextendedtext", SC(ToggleExtendedText) 0 }, /*Added: tchize */ |
215 | {"asksmooth", SC(AskSmooth) 0 }, /*Added: tchize (smoothing technologies) */ |
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216 | }; |
190 | }; |
217 | |
191 | |
218 | bool |
192 | bool |
219 | client::may_execute (const packet_type *pkt) const |
193 | client::may_execute (const packet_type *pkt) const |
220 | { |
194 | { |
221 | return (!(pkt->flags & PF_PLAYER) || pl) |
195 | return (!(pkt->flags & PF_PLAYER) || pl) |
222 | && (!(pkt->flags & PF_PLAYING) || state == ST_PLAYING); |
196 | && (!(pkt->flags & PF_PLAYING) || state == ST_PLAYING); |
223 | } |
197 | } |
224 | |
198 | |
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199 | // HACK: some commands currently should be executed |
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200 | // even when the player is frozen. this hack detects |
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201 | // those commands. it should be folded into may_execute, |
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202 | // but kept seperate to emphasise the hack aspect, i.e. |
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203 | // do it better, then remove. |
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204 | static bool |
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205 | always_immediate (const client *ns, const packet_type *pkt, const char *data, int len) |
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206 | { |
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207 | if (!(pkt->flags & (PF_COMMAND0 | PF_COMMAND6))) |
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208 | return false; |
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209 | |
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210 | if (!ns->pl || !ns->pl->ob || !ns->pl->ob->map) |
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211 | return false; |
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212 | |
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213 | if (pkt->flags & PF_COMMAND6) |
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214 | { |
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215 | data += 6; |
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216 | len -= 6; |
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217 | } |
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218 | |
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219 | if (len > 4 && data [ 3] == ' ' && !strncmp (data, "say " , 4)) return true; |
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220 | if (len > 5 && data [ 4] == ' ' && !strncmp (data, "chat " , 5)) return true; |
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221 | if (len > 6 && data [ 5] == ' ' && !strncmp (data, "shout " , 6)) return true; |
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222 | if (len > 8 && data [ 7] == ' ' && !strncmp (data, "suicide " , 8)) return true; |
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223 | if (len > 18 && data [17] == ' ' && !strncmp (data, "accept-invitation ", 18)) return true; |
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224 | |
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225 | if (len == 7 && !strcmp (data, "suicide")) return true; |
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226 | |
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227 | return false; |
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228 | } |
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229 | |
225 | void |
230 | void |
226 | client::execute (const packet_type *pkt, char *data, int datalen) |
231 | client::execute (const packet_type *pkt, char *data, int datalen) |
227 | { |
232 | { |
228 | if (may_execute (pkt)) |
233 | if (may_execute (pkt) || always_immediate (this, pkt, data, datalen)) |
229 | { |
234 | { |
230 | //TODO: only one format |
235 | //TODO: only one format |
231 | if (pkt->flags & PF_PLAYER) |
236 | if (pkt->flags & PF_PLAYER) |
232 | ((void (*)(char *, int, player *))pkt->cb)((char *)data, datalen, pl); |
237 | ((void (*)(char *, int, player *))pkt->cb)((char *)data, datalen, pl); |
233 | else |
238 | else |
234 | ((void (*)(char *, int, client *))pkt->cb)((char *)data, datalen, this); |
239 | ((void (*)(char *, int, client *))pkt->cb)((char *)data, datalen, this); |
235 | } |
240 | } |
236 | else |
241 | else |
237 | send_packet_printf ("drawinfo %d ERROR: you cannot execute '%s' now.", NDI_RED, pkt->name); |
242 | send_packet_printf ("drawinfo %d ERROR: you cannot execute '%s' now.", NDI_RED | NDI_REPLY, pkt->name); |
238 | } |
243 | } |
239 | |
244 | |
240 | bool |
245 | bool |
241 | client::handle_packet () |
246 | client::handle_packet () |
242 | { |
247 | { |
… | |
… | |
250 | pl && pl->ob ? &pl->ob->name : "[anonymous]"); |
255 | pl && pl->ob ? &pl->ob->name : "[anonymous]"); |
251 | destroy (); |
256 | destroy (); |
252 | return false; |
257 | return false; |
253 | } |
258 | } |
254 | |
259 | |
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260 | uint8_t save_byte = inbuf [pkt_len]; // rather ugly |
255 | inbuf [pkt_len] = 0; /* Terminate buffer - useful for string data */ |
261 | inbuf [pkt_len] = 0; /* temporarily terminate buffer - useful for string data */ |
256 | |
262 | |
257 | /* First, break out beginning word. There are at least |
263 | /* First, break out beginning word. There are at least |
258 | * a few commands that do not have any paremeters. If |
264 | * a few commands that do not have any paremeters. If |
259 | * we get such a command, don't worry about trying |
265 | * we get such a command, don't worry about trying |
260 | * to break it up. |
266 | * to break it up. |
… | |
… | |
274 | } |
280 | } |
275 | |
281 | |
276 | for (packet_type *pkt = packets; pkt < packets + (sizeof (packets) / sizeof (packets[0])); ++pkt) |
282 | for (packet_type *pkt = packets; pkt < packets + (sizeof (packets) / sizeof (packets[0])); ++pkt) |
277 | if (!strcmp ((char *)inbuf + 2, pkt->name)) |
283 | if (!strcmp ((char *)inbuf + 2, pkt->name)) |
278 | { |
284 | { |
279 | if (pkt->flags & PF_PLAYER) |
285 | if (pkt->flags & PF_PLAYER && !always_immediate (this, pkt, data, datalen)) |
280 | queue_command (pkt, data, datalen); |
286 | queue_command (pkt, data, datalen); |
281 | else |
287 | else |
282 | execute (pkt, data, datalen); |
288 | execute (pkt, data, datalen); |
283 | |
289 | |
284 | goto next_packet; |
290 | goto next_packet; |
285 | } |
291 | } |
286 | |
292 | |
287 | // If we get here, we didn't find a valid command. |
293 | // If we get here, we didn't find a valid command. |
288 | send_packet_printf ("drawinfo %d ERROR: command '%s' not supported.", NDI_RED, (char *)inbuf + 2); |
294 | send_packet_printf ("drawinfo %d ERROR: command '%s' not supported.", NDI_RED | NDI_REPLY, (char *)inbuf + 2); |
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295 | |
289 | next_packet: |
296 | next_packet: |
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297 | inbuf [pkt_len] = save_byte; // rather ugly |
290 | skip_packet (pkt_len); |
298 | skip_packet (pkt_len); |
291 | |
299 | |
292 | // input buffer has space again |
300 | // input buffer has space again |
293 | socket_ev.poll (socket_ev.poll () | PE_R); |
301 | socket_ev.poll (socket_ev.poll () | EV_READ); |
294 | |
302 | |
295 | return true; |
303 | return true; |
296 | } |
304 | } |
297 | |
305 | |
298 | // callback called when socket is either readable or writable |
306 | // callback called when socket is either readable or writable |
299 | void |
307 | void |
300 | client::socket_cb (iow &w, int got) |
308 | client::socket_cb (iow &w, int revents) |
301 | { |
309 | { |
302 | //TODO remove when we have better socket cleanup logic |
310 | //TODO remove when we have better socket cleanup logic |
303 | if (destroyed ()) |
311 | if (destroyed ()) |
304 | { |
312 | { |
305 | socket_ev.poll (0); |
313 | socket_ev.poll (0); |
306 | return; |
314 | return; |
307 | } |
315 | } |
308 | |
316 | |
309 | if (got & PE_W) |
317 | if (revents & EV_WRITE) |
310 | { |
318 | { |
311 | write_outputbuffer (); |
319 | write_outputbuffer (); |
312 | |
320 | |
313 | if (!outputbuffer.len) |
321 | if (!outputbuffer.len) |
314 | socket_ev.poll (socket_ev.poll () & ~PE_W); |
322 | socket_ev.poll (socket_ev.poll () & ~EV_WRITE); |
315 | } |
323 | } |
316 | |
324 | |
317 | if (got & PE_R) |
325 | if (revents & EV_READ) |
318 | { |
326 | { |
319 | //TODO: rate-limit tcp connection in better ways, important |
327 | //TODO: rate-limit tcp connection in better ways, important |
320 | |
328 | |
321 | int amount = sizeof (inbuf) - inbuf_len; |
329 | int amount = sizeof (inbuf) - inbuf_len; |
322 | |
330 | |
323 | if (!amount) |
331 | if (!amount) |
324 | { |
332 | { |
325 | // input buffer full |
333 | // input buffer full |
326 | socket_ev.poll (socket_ev.poll () & ~PE_R); |
334 | socket_ev.poll (socket_ev.poll () & ~EV_READ); |
327 | return; |
335 | return; |
328 | } |
336 | } |
329 | |
337 | |
330 | amount = read (fd, inbuf + inbuf_len, amount); |
338 | amount = read (fd, inbuf + inbuf_len, amount); |
331 | |
339 | |
… | |
… | |
347 | } |
355 | } |
348 | else |
356 | else |
349 | { |
357 | { |
350 | inbuf_len += amount; |
358 | inbuf_len += amount; |
351 | |
359 | |
352 | cst_tot.ibytes += amount; |
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353 | cst_lst.ibytes += amount; |
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354 | |
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355 | cmd_ev.start (); |
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356 | } |
|
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357 | } |
|
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358 | } |
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359 | |
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360 | // called whenever we have additional commands to process |
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361 | void |
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362 | client::cmd_cb (iw &w) |
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363 | { |
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364 | if (handle_packet ()) |
360 | if (handle_packet ()) |
365 | w.start (); |
361 | { |
366 | else |
362 | while (handle_packet ()) |
367 | flush (); |
363 | ; |
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364 | |
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365 | flush (); |
|
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366 | } |
|
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367 | } |
|
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368 | } |
368 | } |
369 | } |
369 | |
370 | |
370 | /******************************************************************************* |
371 | /******************************************************************************* |
371 | * |
372 | * |
372 | * Start of write related routines. |
373 | * Start of write related routines. |
… | |
… | |
381 | */ |
382 | */ |
382 | void |
383 | void |
383 | client::send (void *buf_, int len) |
384 | client::send (void *buf_, int len) |
384 | { |
385 | { |
385 | char *buf = (char *)buf_; |
386 | char *buf = (char *)buf_; |
386 | char *pos = buf; |
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387 | int amt = 0; |
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388 | |
387 | |
389 | if (destroyed () || !buf) |
388 | if (destroyed () || !buf) |
390 | return; |
389 | return; |
391 | |
390 | |
392 | if (len + outputbuffer.len > SOCKETBUFSIZE) |
391 | if (len + outputbuffer.len > SOCKETBUFSIZE) |
393 | { |
392 | { |
394 | LOG (llevDebug, "socket on fd %d has overrun internal buffer - marking as dead\n", fd); |
393 | LOG (llevDebug, "socket on fd %d has overrun internal buffer - marking as dead\n", fd); |
395 | destroy (); |
394 | // shutdown the socket, this is safer than destroying it immediately |
|
|
395 | // as lots of code in the callchain might still access the map etc. |
|
|
396 | shutdown (fd, SHUT_RDWR); |
396 | return; |
397 | return; |
397 | } |
398 | } |
398 | |
399 | |
399 | int avail, end; |
400 | int avail, end; |
400 | |
401 | |
… | |
… | |
428 | client::send_packet (packet &sl) |
429 | client::send_packet (packet &sl) |
429 | { |
430 | { |
430 | if (destroyed ()) |
431 | if (destroyed ()) |
431 | return; |
432 | return; |
432 | |
433 | |
433 | if (sl.length () >= MAXSOCKBUF) |
434 | if (sl.length () > MAXSOCKBUF) |
434 | { |
435 | { |
435 | LOG (llevError, "Trying to send a buffer beyond properly size, len =%d\n", sl.length ()); |
436 | LOG (llevError, "Trying to send a buffer beyond properly size, len =%d\n", sl.length ()); |
436 | /* Almost certainly we've overflowed a buffer, so quit now to make |
437 | /* Almost certainly we've overflowed a buffer, so quit now to make |
437 | * it easier to debug. |
438 | * it easier to debug. |
438 | */ |
439 | */ |
… | |
… | |
476 | va_end (ap); |
477 | va_end (ap); |
477 | |
478 | |
478 | send_packet (sl); |
479 | send_packet (sl); |
479 | } |
480 | } |
480 | |
481 | |
|
|
482 | void |
|
|
483 | client::send_msg (int color, const char *type, const char *msg) |
|
|
484 | { |
|
|
485 | if (!msg || !type) // it can happen (for example, missing attack messages cause this) |
|
|
486 | { |
|
|
487 | LOG (logBacktrace | llevError, "send_msg(%d,%p,%p) called with NULL msg or type.\n", color, type, msg); |
|
|
488 | return; |
|
|
489 | } |
|
|
490 | |
|
|
491 | int len = strlen (msg); |
|
|
492 | |
|
|
493 | if (!(color & NDI_VERBATIM) |
|
|
494 | && (msg_is_special (msg) |
|
|
495 | || (type [0] == 'c' && type [1] == '/') || len > (MAXSOCKBUF - 128))) |
|
|
496 | cfperl_send_msg (this, color, type, msg); |
|
|
497 | else |
|
|
498 | send_packet_printf ("msg %d %s %s", color & NDI_CLIENT_MASK, type, msg); |
|
|
499 | } |
|
|
500 | |
|
|
501 | void |
|
|
502 | client::send_drawinfo (const char *msg, int flags) |
|
|
503 | { |
|
|
504 | send_msg (flags, "log", msg); |
|
|
505 | } |
|
|
506 | |
481 | /*********************************************************************** |
507 | /*********************************************************************** |
482 | * |
508 | * |
483 | * packet functions/utilities |
509 | * packet functions/utilities |
484 | * |
510 | * |
485 | **********************************************************************/ |
511 | **********************************************************************/ |
… | |
… | |
491 | int len = strlen (name); |
517 | int len = strlen (name); |
492 | memcpy (cur, name, len); cur += len; |
518 | memcpy (cur, name, len); cur += len; |
493 | *cur++ = ' '; |
519 | *cur++ = ' '; |
494 | } |
520 | } |
495 | |
521 | |
|
|
522 | packet &packet::operator <<(const ber32 v) |
|
|
523 | { |
|
|
524 | enum { maxlen = 32 / 7 + 1}; |
|
|
525 | uint8 buf[maxlen]; |
|
|
526 | uint8 *p = buf + maxlen; |
|
|
527 | uint32 val = v.val; |
|
|
528 | |
|
|
529 | *--p = val & 0x7F; |
|
|
530 | |
|
|
531 | while (val > 0x7F) |
|
|
532 | { |
|
|
533 | val >>= 7; |
|
|
534 | *--p = (val & 0x7F) | 0x80; |
|
|
535 | } |
|
|
536 | |
|
|
537 | return *this << data (p, buf + maxlen - p); |
|
|
538 | } |
|
|
539 | |
496 | packet &packet::operator <<(const data &v) |
540 | packet &packet::operator <<(const data &v) |
497 | { |
541 | { |
498 | if (room () < v.len) |
542 | if (room () < v.len) |
499 | reset (); |
543 | reset (); |
500 | else |
544 | else |
… | |
… | |
537 | return reset (); |
581 | return reset (); |
538 | |
582 | |
539 | cur += len; |
583 | cur += len; |
540 | } |
584 | } |
541 | |
585 | |
542 | /****************************************************************************** |
|
|
543 | * |
|
|
544 | * statistics logging functions. |
|
|
545 | * |
|
|
546 | ******************************************************************************/ |
|
|
547 | |
|
|
548 | #ifdef CS_LOGSTATS |
|
|
549 | |
|
|
550 | /* cst_tot is for the life of the server, cst_last is for the last series of |
|
|
551 | * stats |
|
|
552 | */ |
|
|
553 | CS_Stats cst_tot, cst_lst; |
|
|
554 | |
|
|
555 | /** |
|
|
556 | * Writes out the gathered stats. We clear cst_lst. |
|
|
557 | */ |
|
|
558 | void |
|
|
559 | write_cs_stats (void) |
|
|
560 | { |
|
|
561 | time_t now = time (NULL); |
|
|
562 | |
|
|
563 | /* If no connections recently, don't both to log anything */ |
|
|
564 | if (cst_lst.ibytes == 0 && cst_lst.obytes == 0) |
|
|
565 | return; |
|
|
566 | |
|
|
567 | /* CSSTAT is put in so scripts can easily find the line */ |
|
|
568 | LOG (llevInfo, "CSSTAT: %.16s tot %d %d %d %d inc %d %d %d %d\n", |
|
|
569 | ctime (&now), cst_tot.ibytes, cst_tot.obytes, cst_tot.max_conn, |
|
|
570 | now - cst_tot.time_start, cst_lst.ibytes, cst_lst.obytes, cst_lst.max_conn, now - cst_lst.time_start); |
|
|
571 | cst_lst.ibytes = 0; |
|
|
572 | cst_lst.obytes = 0; |
|
|
573 | cst_lst.time_start = now; |
|
|
574 | } |
|
|
575 | #endif |
|
|
576 | |
|
|