1 | /* |
1 | /* |
2 | CrossFire, A Multiplayer game for X-windows |
2 | * This file is part of Crossfire TRT, the Roguelike Realtime MORPG. |
3 | |
3 | * |
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4 | * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team |
4 | Copyright (C) 1992 Frank Tore Johansen |
5 | * Copyright (©) 1992,2007 Frank Tore Johansen |
5 | |
6 | * |
6 | This program is free software; you can redistribute it and/or modify |
7 | * Crossfire TRT is free software: you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by |
8 | * it under the terms of the GNU General Public License as published by |
8 | the Free Software Foundation; either version 2 of the License, or |
9 | * the Free Software Foundation, either version 3 of the License, or |
9 | (at your option) any later version. |
10 | * (at your option) any later version. |
10 | |
11 | * |
11 | 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, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | GNU General Public License for more details. |
15 | * GNU General Public License for more details. |
15 | |
16 | * |
16 | 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 |
17 | along with this program; if not, write to the Free Software |
18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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19 | |
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20 | The author can be reached via e-mail to mark@pyramid.com |
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21 | */ |
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22 | |
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23 | /** |
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24 | * \file |
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25 | * Low-level socket-related functions. |
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26 | * |
19 | * |
27 | * \date 2003-12-02 |
20 | * The authors can be reached via e-mail to <crossfire@schmorp.de> |
28 | * |
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29 | * Contains some base functions that both the client and server |
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30 | * can use. As such, depending what we are being compiled for will |
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31 | * determine what we can include. the client is designed have |
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32 | * CFCLIENT defined as part of its compile flags. |
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33 | */ |
21 | */ |
34 | |
22 | |
35 | using namespace std; |
23 | using namespace std; |
36 | |
24 | |
37 | #include <global.h> |
25 | #include <global.h> |
38 | #include <sproto.h> |
26 | #include <sproto.h> |
39 | #include <cstdarg> |
27 | #include <cstdarg> |
40 | |
28 | |
41 | #ifdef __linux__ |
29 | #if HAVE_TCP_INFO |
42 | # include <sys/types.h> |
30 | # include <sys/types.h> |
43 | # include <sys/socket.h> |
31 | # include <sys/socket.h> |
44 | # include <netinet/in.h> |
32 | # include <netinet/in.h> |
45 | # define TCP_HZ 1000 // sorry... |
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46 | # include <netinet/tcp.h> |
33 | # include <netinet/tcp.h> |
47 | #endif |
34 | #endif |
48 | |
35 | |
49 | // use a really low timeout, as it doesn't cost any bandwidth, and you can |
36 | // force a packet when idle for more than this many seconds, |
50 | // easily die in 20 seconds... |
37 | // forcing an ack regularly. |
51 | #define SOCKET_TIMEOUT1 10 |
38 | #define IDLE_PING 2. |
52 | #define SOCKET_TIMEOUT2 20 |
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53 | |
39 | |
54 | void |
40 | void |
55 | client::flush () |
41 | client::flush () |
56 | { |
42 | { |
57 | #ifdef __linux__ |
43 | if (destroyed ()) |
58 | // check time of last ack, and, if too old, kill connection |
44 | return; |
59 | struct tcp_info tcpi; |
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60 | socklen_t len = sizeof (tcpi); |
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61 | |
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62 | if (!getsockopt (fd, IPPROTO_TCP, TCP_INFO, &tcpi, &len) && len == sizeof (tcpi)) |
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63 | { |
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64 | unsigned int diff = tcpi.tcpi_last_ack_recv - tcpi.tcpi_last_data_sent; |
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65 | |
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66 | rtt = tcpi.tcpi_rtt; |
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67 | rttvar = tcpi.tcpi_rttvar; |
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68 | |
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69 | if (tcpi.tcpi_unacked && SOCKET_TIMEOUT1 * TCP_HZ < diff && diff < 0x80000000UL // ack delayed for 20s |
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70 | && SOCKET_TIMEOUT2 * TCP_HZ < tcpi.tcpi_last_data_sent) // no data sent for 10s |
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71 | { |
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72 | LOG (llevDebug, "Connection on fd %d closed due to ack timeout (%u/%u/%u)\n", fd, |
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73 | (unsigned) tcpi.tcpi_last_ack_recv, (unsigned) tcpi.tcpi_last_data_sent, (unsigned) tcpi.tcpi_unacked); |
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74 | destroy (); |
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75 | } |
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76 | } |
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77 | #endif |
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78 | |
45 | |
79 | /** |
46 | /** |
80 | * Writes data to socket. |
47 | * Writes data to socket. |
81 | * |
48 | * |
82 | * When the socket is clear to write, and we have backlogged data, this |
49 | * When the socket is clear to write, and we have backlogged data, this |
83 | * is called to write it out. |
50 | * is called to write it out. |
84 | */ |
51 | */ |
85 | |
52 | |
86 | if (!outputbuffer.len || socket_ev.poll () & PE_W) |
53 | // write a nop to the socket at least every IDLE_NOP seconds. |
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54 | if (!outputbuffer.len) |
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55 | { |
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56 | if (last_send + IDLE_PING <= NOW && pl && pl->active) |
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57 | { |
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58 | // this is a bit ugly, but map1/map1a seem to be the only |
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59 | // nop'able commands and they are quite small. |
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60 | packet sl (mapmode == Map1Cmd ? "map1" : "map1a"); |
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61 | send_packet (sl); |
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62 | } |
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63 | else |
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64 | return; |
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65 | } |
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66 | |
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67 | if (socket_ev.poll () & PE_W) |
87 | return; |
68 | return; |
88 | |
69 | |
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70 | last_send = NOW; |
89 | write_outputbuffer (); |
71 | write_outputbuffer (); |
90 | } |
72 | } |
91 | |
73 | |
92 | void |
74 | void |
93 | client::write_outputbuffer () |
75 | client::write_outputbuffer () |
… | |
… | |
103 | /* wrap back to start of buffer */ |
85 | /* wrap back to start of buffer */ |
104 | if (outputbuffer.start == SOCKETBUFSIZE) |
86 | if (outputbuffer.start == SOCKETBUFSIZE) |
105 | outputbuffer.start = 0; |
87 | outputbuffer.start = 0; |
106 | |
88 | |
107 | outputbuffer.len -= res; |
89 | outputbuffer.len -= res; |
108 | #ifdef CS_LOGSTATS |
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109 | cst_tot.obytes += res; |
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110 | cst_lst.obytes += res; |
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111 | #endif |
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112 | } |
90 | } |
113 | else if (res == 0) |
91 | else if (res == 0) |
114 | { |
92 | { |
115 | LOG (llevError, "socket write failed, connection closed.\n"); |
93 | LOG (llevError, "socket write failed, connection closed.\n"); |
116 | destroy (); |
94 | destroy (); |
… | |
… | |
154 | if (inbuf_len >= 2 + pkt_len) |
132 | if (inbuf_len >= 2 + pkt_len) |
155 | return 2 + pkt_len; |
133 | return 2 + pkt_len; |
156 | |
134 | |
157 | if (inbuf_len == sizeof (inbuf)) |
135 | if (inbuf_len == sizeof (inbuf)) |
158 | { |
136 | { |
159 | send_packet_printf ("drawinfo %d input buffer overflow - closing connection.", NDI_RED); |
137 | send_packet_printf ("drawinfo %d input buffer overflow - closing connection.", NDI_RED | NDI_REPLY); |
160 | destroy (); |
138 | destroy (); |
161 | return -1; |
139 | return -1; |
162 | } |
140 | } |
163 | } |
141 | } |
164 | |
142 | |
… | |
… | |
183 | |
161 | |
184 | /** |
162 | /** |
185 | * Dispatch table for the server. |
163 | * Dispatch table for the server. |
186 | */ |
164 | */ |
187 | static struct packet_type packets[] = { |
165 | static struct packet_type packets[] = { |
188 | {"ncom", PC(NewPlayerCmd) PF_PLAYING }, |
166 | {"ncom", PC(NewPlayerCmd) PF_PLAYING | PF_COMMAND6 }, |
189 | {"command", PC(PlayerCmd) PF_PLAYING }, |
167 | {"command", PC(PlayerCmd) PF_PLAYING | PF_COMMAND0 }, |
190 | |
168 | |
191 | {"examine", PC(ExamineCmd) PF_PLAYING }, |
169 | {"examine", PC(ExamineCmd) PF_PLAYING }, |
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170 | {"ex", PC(ExCmd) PF_PLAYING }, |
192 | {"apply", PC(ApplyCmd) PF_PLAYING }, |
171 | {"apply", PC(ApplyCmd) PF_PLAYING }, |
193 | {"reply", PC(ReplyCmd) PF_IMMEDIATE }, |
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194 | {"lookat", PC(LookAt) PF_PLAYING }, |
172 | {"lookat", PC(LookAt) PF_PLAYING }, |
195 | {"lock", PC(LockItem) PF_PLAYING }, |
173 | {"lock", PC(LockItem) PF_PLAYING }, |
196 | {"mark", PC(MarkItem) PF_PLAYING }, |
174 | {"mark", PC(MarkItem) PF_PLAYING }, |
197 | {"move", PC(MoveCmd) PF_PLAYING }, |
175 | {"move", PC(MoveCmd) PF_PLAYING }, |
198 | {"exti", PC(ExtCmd) PF_IMMEDIATE }, /* CF+ */ |
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199 | {"ext", PC(ExtCmd) 0 }, /* CF+ */ |
176 | {"ext", PC(ExtCmd) 0 }, // CF+ |
200 | {"mapredraw", PC(MapRedrawCmd) PF_IMMEDIATE }, /* Added: phil */ |
177 | {"mapredraw", PC(MapRedrawCmd) 0 }, |
201 | {"mapinfo", PC(MapInfoCmd) 0 }, /* CF+ */ |
178 | {"mapinfo", PC(MapInfoCmd) 0 }, // CF+ |
202 | |
179 | |
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180 | {"reply", SC(ReplyCmd) 0 }, |
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181 | {"exti", SC(ExtiCmd) 0 }, // CF+ |
203 | {"addme", SC(AddMeCmd) PF_IMMEDIATE }, |
182 | {"addme", SC(AddMeCmd) 0 }, |
204 | {"askface", SC(SendFaceCmd) PF_IMMEDIATE }, /* Added: phil */ |
183 | {"askface", SC(AskFaceCmd) 0 }, |
205 | {"requestinfo", SC(RequestInfo) PF_IMMEDIATE }, |
184 | {"requestinfo", SC(RequestInfo) 0 }, |
206 | {"setfacemode", SC(SetFaceMode) PF_IMMEDIATE }, |
185 | {"setfacemode", SC(SetFaceMode) 0 }, |
207 | {"setsound", SC(SetSound) PF_IMMEDIATE }, |
186 | {"setsound", SC(SetSound) 0 }, |
208 | {"setup", SC(SetUp) PF_IMMEDIATE }, |
187 | {"setup", SC(SetUp) 0 }, |
209 | {"version", SC(VersionCmd) PF_IMMEDIATE }, |
188 | {"version", SC(VersionCmd) 0 }, |
210 | {"toggleextendedinfos", SC(ToggleExtendedInfos) PF_IMMEDIATE }, /*Added: tchize */ |
189 | {"toggleextendedinfos", SC(ToggleExtendedInfos) 0 }, /*Added: tchize */ |
211 | {"toggleextendedtext", SC(ToggleExtendedText) PF_IMMEDIATE }, /*Added: tchize */ |
190 | {"toggleextendedtext", SC(ToggleExtendedText) 0 }, /*Added: tchize */ |
212 | {"asksmooth", SC(AskSmooth) PF_IMMEDIATE }, /*Added: tchize (smoothing technologies) */ |
191 | {"asksmooth", SC(AskSmooth) 0 }, /*Added: tchize (smoothing technologies) */ |
213 | }; |
192 | }; |
214 | |
193 | |
215 | bool |
194 | bool |
216 | client::may_execute (const packet_type *pkt) const |
195 | client::may_execute (const packet_type *pkt) const |
217 | { |
196 | { |
218 | return (!(pkt->flags & PF_PLAYER) || pl) |
197 | return (!(pkt->flags & PF_PLAYER) || pl) |
219 | && (!(pkt->flags & PF_PLAYING) || (pl && pl->state == ST_PLAYING)); |
198 | && (!(pkt->flags & PF_PLAYING) || state == ST_PLAYING); |
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199 | } |
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200 | |
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201 | // HACK: some commands currently should be executed |
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202 | // even when the player is frozen. this hack detects |
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203 | // those commands. it should be folded into may_execute, |
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204 | // but kept seperate to emphasise the hack aspect, i.e. |
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205 | // do it better, then remove. |
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206 | static bool |
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207 | always_immediate (const client *ns, const packet_type *pkt, const char *data, int len) |
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208 | { |
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209 | if (!(pkt->flags & (PF_COMMAND0 | PF_COMMAND6))) |
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210 | return false; |
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211 | |
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212 | if (!ns->pl || !ns->pl->ob || !ns->pl->ob->map) |
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213 | return false; |
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214 | |
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215 | if (pkt->flags & PF_COMMAND6) |
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216 | { |
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217 | data += 6; |
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218 | len -= 6; |
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219 | } |
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220 | |
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221 | if (len > 4 && !strncmp (data, "say " , 4)) |
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222 | return true; |
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223 | if (len > 5 && !strncmp (data, "chat ", 5)) |
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224 | return true; |
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225 | |
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226 | return false; |
220 | } |
227 | } |
221 | |
228 | |
222 | void |
229 | void |
223 | client::execute (const packet_type *pkt, char *data, int datalen) |
230 | client::execute (const packet_type *pkt, char *data, int datalen) |
224 | { |
231 | { |
225 | if (may_execute (pkt)) |
232 | if (may_execute (pkt) || always_immediate (this, pkt, data, datalen)) |
226 | { |
233 | { |
227 | //TODO: only one format |
234 | //TODO: only one format |
228 | if (pkt->flags & PF_PLAYER) |
235 | if (pkt->flags & PF_PLAYER) |
229 | ((void (*)(char *, int, player *))pkt->cb)((char *)data, datalen, pl); |
236 | ((void (*)(char *, int, player *))pkt->cb)((char *)data, datalen, pl); |
230 | else |
237 | else |
231 | ((void (*)(char *, int, client *))pkt->cb)((char *)data, datalen, this); |
238 | ((void (*)(char *, int, client *))pkt->cb)((char *)data, datalen, this); |
232 | } |
239 | } |
233 | else |
240 | else |
234 | send_packet_printf ("drawinfo %d ERROR: you cannot execute '%s' now.", NDI_RED, pkt->name); |
241 | send_packet_printf ("drawinfo %d ERROR: you cannot execute '%s' now.", NDI_RED | NDI_REPLY, pkt->name); |
235 | } |
242 | } |
236 | |
243 | |
237 | bool |
244 | bool |
238 | client::handle_packet () |
245 | client::handle_packet () |
239 | { |
246 | { |
… | |
… | |
271 | } |
278 | } |
272 | |
279 | |
273 | for (packet_type *pkt = packets; pkt < packets + (sizeof (packets) / sizeof (packets[0])); ++pkt) |
280 | for (packet_type *pkt = packets; pkt < packets + (sizeof (packets) / sizeof (packets[0])); ++pkt) |
274 | if (!strcmp ((char *)inbuf + 2, pkt->name)) |
281 | if (!strcmp ((char *)inbuf + 2, pkt->name)) |
275 | { |
282 | { |
276 | if (pkt->flags & PF_IMMEDIATE) |
283 | if (pkt->flags & PF_PLAYER && !always_immediate (this, pkt, data, datalen)) |
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284 | queue_command (pkt, data, datalen); |
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285 | else |
277 | execute (pkt, data, datalen); |
286 | execute (pkt, data, datalen); |
278 | else |
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279 | queue_command (pkt, data, datalen); |
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280 | |
287 | |
281 | goto next_packet; |
288 | goto next_packet; |
282 | } |
289 | } |
283 | |
290 | |
284 | /* If we get here, we didn't find a valid command. Logging |
291 | // If we get here, we didn't find a valid command. |
285 | * this might be questionable, because a broken client/malicious |
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286 | * user could certainly send a whole bunch of invalid commands. |
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287 | */ |
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288 | send_packet_printf ("drawinfo %d ERROR: command '%s' not supported.", NDI_RED, (char *)inbuf + 2); |
292 | send_packet_printf ("drawinfo %d ERROR: command '%s' not supported.", NDI_RED | NDI_REPLY, (char *)inbuf + 2); |
289 | next_packet: |
293 | next_packet: |
290 | skip_packet (pkt_len); |
294 | skip_packet (pkt_len); |
291 | |
295 | |
292 | // input buffer has space again |
296 | // input buffer has space again |
293 | socket_ev.poll (socket_ev.poll () | PE_R); |
297 | socket_ev.poll (socket_ev.poll () | PE_R); |
… | |
… | |
298 | // callback called when socket is either readable or writable |
302 | // callback called when socket is either readable or writable |
299 | void |
303 | void |
300 | client::socket_cb (iow &w, int got) |
304 | client::socket_cb (iow &w, int got) |
301 | { |
305 | { |
302 | //TODO remove when we have better socket cleanup logic |
306 | //TODO remove when we have better socket cleanup logic |
303 | if (status == Ns_Dead) |
307 | if (destroyed ()) |
304 | { |
308 | { |
305 | socket_ev.poll (0); |
309 | socket_ev.poll (0); |
306 | return; |
310 | return; |
307 | } |
311 | } |
308 | |
312 | |
… | |
… | |
347 | } |
351 | } |
348 | else |
352 | else |
349 | { |
353 | { |
350 | inbuf_len += amount; |
354 | inbuf_len += amount; |
351 | |
355 | |
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 (); |
356 | cmd_ev.start (); |
356 | } |
357 | } |
357 | } |
358 | } |
358 | } |
359 | } |
359 | |
360 | |
360 | // called whenever we have additional commands to process |
361 | // called whenever we have additional commands to process |
361 | void |
362 | void |
362 | client::cmd_cb (iw &w) |
363 | client::cmd_cb (iw &w) |
363 | { |
364 | { |
364 | if (handle_packet () || handle_command ()) |
365 | if (handle_packet ()) |
365 | w.start (); |
366 | w.start (); |
366 | else |
367 | else |
367 | flush (); |
368 | flush (); |
368 | } |
369 | } |
369 | |
370 | |
… | |
… | |
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 (status == Ns_Dead || !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 |
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395 | // as lots of code in the callchain might still access the map etc. |
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396 | shutdown (fd, SHUT_RDWR); |
396 | return; |
397 | return; |
397 | } |
398 | } |
398 | |
399 | |
399 | int avail, end; |
400 | int avail, end; |
400 | |
401 | |
… | |
… | |
425 | * shortcut function. |
426 | * shortcut function. |
426 | */ |
427 | */ |
427 | void |
428 | void |
428 | client::send_packet (packet &sl) |
429 | client::send_packet (packet &sl) |
429 | { |
430 | { |
430 | if (status == Ns_Dead) |
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 | |
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482 | // returns true when the message needs special (read: perl) treatment |
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483 | static bool |
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484 | msg_is_special (const char *msg) |
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485 | { |
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486 | return msg [strcspn (msg, "<[&\n")]; |
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487 | } |
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488 | |
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489 | void |
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490 | client::send_msg (int color, const char *type, const char *msg) |
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491 | { |
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492 | if (!msg || !type) // it can happen (for example, missing attack messages cause this) |
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493 | { |
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494 | LOG (logBacktrace | llevError, "send_msg(%d,%p,%p) called with NULL msg or type.\n", color, type, msg); |
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495 | return; |
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496 | } |
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497 | |
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498 | int len = strlen (msg); |
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499 | |
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500 | if (msg_is_special (msg) || (type [0] == 'c' && type [1] == '/') || len > (MAXSOCKBUF - 128)) |
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501 | cfperl_send_msg (this, color, type, msg); |
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502 | else if (can_msg) |
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503 | send_packet_printf ("msg %d %s %s", color & NDI_CLIENT_MASK, type, msg); |
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504 | else if (color < 0) |
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505 | return; // client cannot handle this |
|
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506 | else |
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507 | send_packet_printf ("drawinfo %d %s", color & NDI_COLOR_MASK, msg); |
|
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508 | } |
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509 | |
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510 | void |
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511 | client::send_drawinfo (const char *msg, int flags) |
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512 | { |
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513 | send_msg (flags, "log", msg); |
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514 | } |
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515 | |
481 | /*********************************************************************** |
516 | /*********************************************************************** |
482 | * |
517 | * |
483 | * packet functions/utilities |
518 | * packet functions/utilities |
484 | * |
519 | * |
485 | **********************************************************************/ |
520 | **********************************************************************/ |
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521 | |
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522 | packet::packet (const char *name) |
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523 | { |
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524 | reset (); |
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525 | |
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526 | int len = strlen (name); |
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527 | memcpy (cur, name, len); cur += len; |
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528 | *cur++ = ' '; |
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529 | } |
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530 | |
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531 | packet &packet::operator <<(const ber32 v) |
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532 | { |
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533 | enum { maxlen = 32 / 7 + 1}; |
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534 | uint8 buf[maxlen]; |
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535 | uint8 *p = buf + maxlen; |
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536 | uint32 val = v.val; |
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537 | |
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538 | *--p = val & 0x7F; |
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539 | |
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540 | while (val > 0x7F) |
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541 | { |
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542 | val >>= 7; |
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543 | *--p = (val & 0x7F) | 0x80; |
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544 | } |
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545 | |
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546 | return *this << data (p, buf + maxlen - p); |
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|
547 | } |
486 | |
548 | |
487 | packet &packet::operator <<(const data &v) |
549 | packet &packet::operator <<(const data &v) |
488 | { |
550 | { |
489 | if (room () < v.len) |
551 | if (room () < v.len) |
490 | reset (); |
552 | reset (); |
… | |
… | |
528 | return reset (); |
590 | return reset (); |
529 | |
591 | |
530 | cur += len; |
592 | cur += len; |
531 | } |
593 | } |
532 | |
594 | |
533 | /****************************************************************************** |
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534 | * |
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535 | * statistics logging functions. |
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536 | * |
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537 | ******************************************************************************/ |
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538 | |
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539 | #ifdef CS_LOGSTATS |
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540 | |
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|
541 | /* cst_tot is for the life of the server, cst_last is for the last series of |
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542 | * stats |
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543 | */ |
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|
544 | CS_Stats cst_tot, cst_lst; |
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545 | |
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546 | /** |
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547 | * Writes out the gathered stats. We clear cst_lst. |
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|
548 | */ |
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549 | void |
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550 | write_cs_stats (void) |
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|
551 | { |
|
|
552 | time_t now = time (NULL); |
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553 | |
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554 | /* If no connections recently, don't both to log anything */ |
|
|
555 | if (cst_lst.ibytes == 0 && cst_lst.obytes == 0) |
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|
556 | return; |
|
|
557 | |
|
|
558 | /* CSSTAT is put in so scripts can easily find the line */ |
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559 | LOG (llevInfo, "CSSTAT: %.16s tot %d %d %d %d inc %d %d %d %d\n", |
|
|
560 | ctime (&now), cst_tot.ibytes, cst_tot.obytes, cst_tot.max_conn, |
|
|
561 | now - cst_tot.time_start, cst_lst.ibytes, cst_lst.obytes, cst_lst.max_conn, now - cst_lst.time_start); |
|
|
562 | cst_lst.ibytes = 0; |
|
|
563 | cst_lst.obytes = 0; |
|
|
564 | cst_lst.time_start = now; |
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|
565 | } |
|
|
566 | #endif |
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567 | |
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|