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Comparing deliantra/server/socket/lowlevel.C (file contents):
Revision 1.20 by root, Thu Dec 14 21:46:34 2006 UTC vs.
Revision 1.50 by root, Thu Jul 12 19:36:58 2007 UTC

1/* 1/*
2 CrossFire, A Multiplayer game for X-windows 2 * This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
3 3 *
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.
19
20 The author can be reached via e-mail to mark@pyramid.com
21*/
22
23/**
24 * \file
25 * Low-level socket-related functions.
26 * 19 *
27 * \date 2003-12-02 20 * The authors can be reached via e-mail to <crossfire@schmorp.de>
28 *
29 * Contains some base functions that both the client and server
30 * can use. As such, depending what we are being compiled for will
31 * determine what we can include. the client is designed have
32 * CFCLIENT defined as part of its compile flags.
33 */ 21 */
34 22
35using namespace std; 23using namespace std;
36 24
37#include <global.h> 25#include <global.h>
38#include <newclient.h>
39#include <sproto.h> 26#include <sproto.h>
40#include <cstdarg> 27#include <cstdarg>
41 28
42#ifdef __linux__ 29#if HAVE_TCP_INFO
43# include <sys/types.h> 30# include <sys/types.h>
44# include <sys/socket.h> 31# include <sys/socket.h>
45# include <netinet/in.h> 32# include <netinet/in.h>
46# define TCP_HZ 1000 // sorry...
47# include <netinet/tcp.h> 33# include <netinet/tcp.h>
48#endif 34#endif
49 35
50// use a really low timeout, as it doesn't cost any bandwidth, and you can 36#define HAVE_SIOCOUTQ 1 //TODO configure.ac support
51// easily die in 20 seconds... 37#if HAVE_SIOCOUTQ
38# include <linux/sockios.h>
39#endif
40
41// disconnect a socket after this many seconds without an ack
52#define SOCKET_TIMEOUT1 10 42#define SOCKET_TIMEOUT 8.
53#define SOCKET_TIMEOUT2 20
54 43
44// force a packet when idle for more than this many seconds,
45// forcing an ack regularly.
46#define IDLE_PING 2.
47
55void 48void
56client_socket::flush () 49client::flush ()
57{ 50{
58#ifdef __linux__ 51 if (destroyed ())
52 return;
53
54# if HAVE_SIOCOUTQ
55 {
56 int value;
57
58 if (!ioctl (fd, SIOCOUTQ, &value))
59 outq = value;
60 }
61# endif
62
63#if HAVE_TCP_INFO
64 // check about once per second, spread evenly over all clients
65 // do this only when player is active
66 if (!((pticks + fd) & 7) && pl && pl->active)
67 {
59 // check time of last ack, and, if too old, kill connection 68 // check time of last ack, and, if too old, kill connection
60 struct tcp_info tcpi; 69 struct tcp_info tcpi;
61 socklen_t len = sizeof (tcpi); 70 socklen_t len = sizeof (tcpi);
62 71
63 if (!getsockopt (fd, IPPROTO_TCP, TCP_INFO, &tcpi, &len) && len == sizeof (tcpi)) 72 if (!getsockopt (fd, IPPROTO_TCP, TCP_INFO, &tcpi, &len) && len == sizeof (tcpi))
64 { 73 {
65 unsigned int diff = tcpi.tcpi_last_ack_recv - tcpi.tcpi_last_data_sent; 74 if (tcpi.tcpi_snd_mss)
75 mss = tcpi.tcpi_snd_mss;
66 76
67 if (tcpi.tcpi_unacked && SOCKET_TIMEOUT1 * TCP_HZ < diff && diff < 0x80000000UL // ack delayed for 20s 77 rtt = tcpi.tcpi_rtt;
68 && SOCKET_TIMEOUT2 * TCP_HZ < tcpi.tcpi_last_data_sent) // no data sent for 10s 78 rttvar = tcpi.tcpi_rttvar;
79
80 if (tcpi.tcpi_last_ack_recv > int (SOCKET_TIMEOUT * 1000))
69 { 81 {
82 send_msg (NDI_RED, "connection-timeout", "safety disconnect due to tcp/ip timeout (no packets received)");
83 write_outputbuffer ();
84
70 LOG (llevDebug, "Connection on fd %d closed due to ack timeout (%u/%u/%u)\n", fd, 85 LOG (llevDebug, "connection on fd %d closed due to ack timeout (%u/%u/%u)\n", fd,
71 (unsigned) tcpi.tcpi_last_ack_recv, (unsigned) tcpi.tcpi_last_data_sent, (unsigned) tcpi.tcpi_unacked); 86 (unsigned)tcpi.tcpi_last_ack_recv, (unsigned)tcpi.tcpi_last_data_sent, (unsigned)tcpi.tcpi_unacked);
72 status = Ns_Dead; 87 destroy ();
88 }
73 } 89 }
74 } 90 }
75#endif 91#endif
76 92
77 /** 93 /**
… …
79 * 95 *
80 * When the socket is clear to write, and we have backlogged data, this 96 * When the socket is clear to write, and we have backlogged data, this
81 * is called to write it out. 97 * is called to write it out.
82 */ 98 */
83 99
84 if (!outputbuffer.len || socket_ev.poll () & PE_W) 100 // write a nop to the socket at least every IDLE_NOP seconds.
101 if (!outputbuffer.len)
102 {
103 if (last_send + IDLE_PING <= NOW && pl && pl->active)
104 {
105 // this is a bit ugly, but map1/map1a seem to be the only
106 // nop'able commands and they are quite small.
107 packet sl (mapmode == Map1Cmd ? "map1" : "map1a");
108 send_packet (sl);
109 }
110 else
111 return;
112 }
113
114 if (socket_ev.poll () & PE_W)
85 return; 115 return;
86 116
117 last_send = NOW;
87 write_outputbuffer (); 118 write_outputbuffer ();
88} 119}
89 120
90void 121void
91client_socket::write_outputbuffer () 122client::write_outputbuffer ()
92{ 123{
93 while (outputbuffer.len) 124 while (outputbuffer.len)
94 { 125 {
95 int res = write (fd, outputbuffer.data + outputbuffer.start, 126 int res = write (fd, outputbuffer.data + outputbuffer.start,
96 min (outputbuffer.len, SOCKETBUFSIZE - outputbuffer.start)); 127 min (outputbuffer.len, SOCKETBUFSIZE - outputbuffer.start));
… …
101 /* wrap back to start of buffer */ 132 /* wrap back to start of buffer */
102 if (outputbuffer.start == SOCKETBUFSIZE) 133 if (outputbuffer.start == SOCKETBUFSIZE)
103 outputbuffer.start = 0; 134 outputbuffer.start = 0;
104 135
105 outputbuffer.len -= res; 136 outputbuffer.len -= res;
106#ifdef CS_LOGSTATS
107 cst_tot.obytes += res;
108 cst_lst.obytes += res;
109#endif
110 } 137 }
111 else if (res == 0) 138 else if (res == 0)
112 { 139 {
113 LOG (llevError, "socket write failed, connection closed.\n"); 140 LOG (llevError, "socket write failed, connection closed.\n");
114 status = Ns_Dead; 141 destroy ();
115 return; 142 return;
116 } 143 }
117 else if (errno == EINTR) 144 else if (errno == EINTR)
118 { 145 {
119 // just retry 146 // just retry
… …
126 return; 153 return;
127 } 154 }
128 else 155 else
129 { 156 {
130 LOG (llevError, "socket write failed: %s\n", strerror (errno)); 157 LOG (llevError, "socket write failed: %s\n", strerror (errno));
131 status = Ns_Dead; 158 destroy ();
132 return; 159 return;
133 } 160 }
134 } 161 }
135 162
136 socket_ev.poll (socket_ev.poll () & ~PE_W); 163 socket_ev.poll (socket_ev.poll () & ~PE_W);
137}
138
139/***********************************************************************
140 *
141 * packet functions/utilities
142 *
143 **********************************************************************/
144
145packet &packet::operator <<(const data &v)
146{
147 if (room () < v.len)
148 reset ();
149 else
150 {
151 if (v.len)
152 {
153 memcpy (cur, v.ptr, v.len);
154 cur += v.len;
155 }
156 }
157
158 return *this;
159}
160
161packet &packet::operator <<(const data8 &v)
162{
163 unsigned int len = min (v.len, 0x00FF);
164 return *this << uint8 (len) << data (v.ptr, len);
165}
166
167packet &packet::operator <<(const data16 &v)
168{
169 unsigned int len = min (v.len, 0xFFFF);
170 return *this << uint16 (len) << data (v.ptr, len);
171}
172
173packet &packet::operator <<(const char *v)
174{
175 return *this << data (v, strlen (v ? v : 0));
176}
177
178void
179packet::printf (const char *format, ...)
180{
181 int size = room ();
182
183 va_list ap;
184 va_start (ap, format);
185 int len = vsnprintf ((char *)cur, size, format, ap);
186 va_end (ap);
187
188 if (len >= size)
189 return reset ();
190
191 cur += len;
192} 164}
193 165
194/****************************************************************************** 166/******************************************************************************
195 * 167 *
196 * Start of read routines. 168 * Start of read routines.
197 * 169 *
198 ******************************************************************************/ 170 ******************************************************************************/
199 171
200int 172int
201client_socket::read_packet () 173client::next_packet ()
202{ 174{
203 for (;;)
204 {
205 if (inbuf_len >= 2) 175 if (inbuf_len >= 2)
206 { 176 {
207 unsigned int pkt_len = (inbuf [0] << 8) | inbuf [1]; 177 int pkt_len = (inbuf [0] << 8) | inbuf [1];
208 178
209 if (inbuf_len >= 2 + pkt_len) 179 if (inbuf_len >= 2 + pkt_len)
210 return pkt_len + 2; 180 return 2 + pkt_len;
181
182 if (inbuf_len == sizeof (inbuf))
211 } 183 {
184 send_packet_printf ("drawinfo %d input buffer overflow - closing connection.", NDI_RED);
185 destroy ();
186 return -1;
187 }
188 }
189
190 return 0;
191}
192
193void
194client::skip_packet (int len)
195{
196 inbuf_len -= len;
197 memmove (inbuf, inbuf + len, inbuf_len);
198}
199
200/*****************************************************************************
201 * Start of command dispatch area.
202 * The commands here are protocol commands.
203 ****************************************************************************/
204
205// SocketCommand, PlayingCommand, should not exist with those ugly casts
206#define SC(cb) (void *)static_cast<void (*)(char *, int, client *)>(cb),
207#define PC(cb) (void *)static_cast<void (*)(char *, int, player *)>(cb), PF_PLAYER |
208
209/**
210 * Dispatch table for the server.
211 */
212static struct packet_type packets[] = {
213 {"ncom", PC(NewPlayerCmd) PF_PLAYING | PF_COMMAND6 },
214 {"command", PC(PlayerCmd) PF_PLAYING | PF_COMMAND0 },
215
216 {"examine", PC(ExamineCmd) PF_PLAYING },
217 {"ex", PC(ExCmd) PF_PLAYING },
218 {"apply", PC(ApplyCmd) PF_PLAYING },
219 {"lookat", PC(LookAt) PF_PLAYING },
220 {"lock", PC(LockItem) PF_PLAYING },
221 {"mark", PC(MarkItem) PF_PLAYING },
222 {"move", PC(MoveCmd) PF_PLAYING },
223 {"ext", PC(ExtCmd) 0 }, // CF+
224 {"mapredraw", PC(MapRedrawCmd) 0 },
225 {"mapinfo", PC(MapInfoCmd) 0 }, // CF+
226
227 {"reply", SC(ReplyCmd) 0 },
228 {"exti", SC(ExtiCmd) 0 }, // CF+
229 {"addme", SC(AddMeCmd) 0 },
230 {"askface", SC(AskFaceCmd) 0 },
231 {"requestinfo", SC(RequestInfo) 0 },
232 {"setfacemode", SC(SetFaceMode) 0 },
233 {"setsound", SC(SetSound) 0 },
234 {"setup", SC(SetUp) 0 },
235 {"version", SC(VersionCmd) 0 },
236 {"toggleextendedinfos", SC(ToggleExtendedInfos) 0 }, /*Added: tchize */
237 {"toggleextendedtext", SC(ToggleExtendedText) 0 }, /*Added: tchize */
238 {"asksmooth", SC(AskSmooth) 0 }, /*Added: tchize (smoothing technologies) */
239};
240
241bool
242client::may_execute (const packet_type *pkt) const
243{
244 return (!(pkt->flags & PF_PLAYER) || pl)
245 && (!(pkt->flags & PF_PLAYING) || state == ST_PLAYING);
246}
247
248// HACK: some commands currently should be executed
249// even when the player is frozen. this hack detects
250// those commands. it should be folded into may_execute,
251// but kept seperate to emphasise the hack aspect, i.e.
252// do it better, then remove.
253static bool
254always_immediate (const client *ns, const packet_type *pkt, const char *data, int len)
255{
256 if (!(pkt->flags & (PF_COMMAND0 | PF_COMMAND6)))
257 return false;
258
259 if (!ns->pl || !ns->pl->ob || !ns->pl->ob->map)
260 return false;
261
262 if (pkt->flags & PF_COMMAND6)
263 {
264 data += 6;
265 len -= 6;
266 }
267
268 if (len > 4 && !strncmp (data, "say " , 4))
269 return true;
270 if (len > 5 && !strncmp (data, "chat ", 5))
271 return true;
272
273 return false;
274}
275
276void
277client::execute (const packet_type *pkt, char *data, int datalen)
278{
279 if (may_execute (pkt) || always_immediate (this, pkt, data, datalen))
280 {
281 //TODO: only one format
282 if (pkt->flags & PF_PLAYER)
283 ((void (*)(char *, int, player *))pkt->cb)((char *)data, datalen, pl);
284 else
285 ((void (*)(char *, int, client *))pkt->cb)((char *)data, datalen, this);
286 }
287 else
288 send_packet_printf ("drawinfo %d ERROR: you cannot execute '%s' now.", NDI_RED, pkt->name);
289}
290
291bool
292client::handle_packet ()
293{
294 int pkt_len = next_packet ();
295
296 if (!pkt_len)
297 return false;
298 else if (pkt_len < 0)
299 {
300 LOG (llevError, "read error on player %s\n",
301 pl && pl->ob ? &pl->ob->name : "[anonymous]");
302 destroy ();
303 return false;
304 }
305
306 inbuf [pkt_len] = 0; /* Terminate buffer - useful for string data */
307
308 /* First, break out beginning word. There are at least
309 * a few commands that do not have any paremeters. If
310 * we get such a command, don't worry about trying
311 * to break it up.
312 */
313 int datalen;
314 char *data = strchr ((char *)inbuf + 2, ' ');
315
316 if (data)
317 {
318 *data++ = 0;
319 datalen = pkt_len - (data - (char *)inbuf);
320 }
321 else
322 {
323 data = (char *)inbuf + 2; // better read garbage than segfault
324 datalen = 0;
325 }
326
327 for (packet_type *pkt = packets; pkt < packets + (sizeof (packets) / sizeof (packets[0])); ++pkt)
328 if (!strcmp ((char *)inbuf + 2, pkt->name))
329 {
330 if (pkt->flags & PF_PLAYER && !always_immediate (this, pkt, data, datalen))
331 queue_command (pkt, data, datalen);
332 else
333 execute (pkt, data, datalen);
334
335 goto next_packet;
336 }
337
338 // If we get here, we didn't find a valid command.
339 send_packet_printf ("drawinfo %d ERROR: command '%s' not supported.", NDI_RED, (char *)inbuf + 2);
340next_packet:
341 skip_packet (pkt_len);
342
343 // input buffer has space again
344 socket_ev.poll (socket_ev.poll () | PE_R);
345
346 return true;
347}
348
349// callback called when socket is either readable or writable
350void
351client::socket_cb (iow &w, int got)
352{
353 //TODO remove when we have better socket cleanup logic
354 if (destroyed ())
355 {
356 socket_ev.poll (0);
357 return;
358 }
359
360 if (got & PE_W)
361 {
362 write_outputbuffer ();
363
364 if (!outputbuffer.len)
365 socket_ev.poll (socket_ev.poll () & ~PE_W);
366 }
367
368 if (got & PE_R)
369 {
370 //TODO: rate-limit tcp connection in better ways, important
212 371
213 int amount = sizeof (inbuf) - inbuf_len; 372 int amount = sizeof (inbuf) - inbuf_len;
214 373
215 if (amount <= 0) 374 if (!amount)
216 { 375 {
217 LOG (llevError, "packet too large");//TODO 376 // input buffer full
377 socket_ev.poll (socket_ev.poll () & ~PE_R);
218 return -1; 378 return;
219 } 379 }
220 380
221 amount = read (fd, inbuf + inbuf_len, amount); 381 amount = read (fd, inbuf + inbuf_len, amount);
222 382
223 if (!amount) 383 if (!amount)
224 { 384 {
225 status = Ns_Dead; 385 destroy ();
226 return -1; 386 return;
227 } 387 }
228 else if (amount < 0) 388 else if (amount < 0)
229 { 389 {
230 if (errno != EAGAIN && errno != EINTR) 390 if (errno != EAGAIN && errno != EINTR)
231 { 391 {
232 LOG (llevError, "read error: %s\n", strerror (errno)); 392 LOG (llevError, "read error: %s\n", strerror (errno));
393 destroy ();
233 return -1; 394 return;
234 } 395 }
235 396
236 return 0; 397 // should not be here, normally
398 }
399 else
237 } 400 {
238
239 inbuf_len += amount; 401 inbuf_len += amount;
240 402
241 cst_tot.ibytes += amount; 403 cmd_ev.start ();
242 cst_lst.ibytes += amount; 404 }
243 } 405 }
244} 406}
245 407
408// called whenever we have additional commands to process
246void 409void
247client_socket::skip_packet (int len) 410client::cmd_cb (iw &w)
248{ 411{
249 inbuf_len -= len; 412 if (handle_packet ())
250 memmove (inbuf, inbuf + len, inbuf_len); 413 w.start ();
414 else
415 flush ();
251} 416}
252 417
253/******************************************************************************* 418/*******************************************************************************
254 * 419 *
255 * Start of write related routines. 420 * Start of write related routines.
… …
261 * 426 *
262 * ns is the socket we are adding the data to, buf is the start of the 427 * ns is the socket we are adding the data to, buf is the start of the
263 * data, and len is the number of bytes to add. 428 * data, and len is the number of bytes to add.
264 */ 429 */
265void 430void
266client_socket::send (void *buf_, int len) 431client::send (void *buf_, int len)
267{ 432{
268 char *buf = (char *)buf_; 433 char *buf = (char *)buf_;
269 char *pos = buf;
270 int amt = 0;
271 434
272 if (status == Ns_Dead || !buf) 435 if (destroyed () || !buf)
273 {
274 LOG (llevDebug, "Write_To_Socket called with dead socket\n");
275 return; 436 return;
276 }
277 437
278 if ((len + outputbuffer.len) > SOCKETBUFSIZE) 438 if (len + outputbuffer.len > SOCKETBUFSIZE)
279 { 439 {
280 LOG (llevDebug, "Socket on fd %d has overrun internal buffer - marking as dead\n", fd); 440 LOG (llevDebug, "socket on fd %d has overrun internal buffer - marking as dead\n", fd);
281 status = Ns_Dead; 441 // shutdown the socket, this is safer than destroying it immediately
442 // as lots of code in the callchain might still access the map etc.
443 shutdown (fd, SHUT_RDWR);
282 return; 444 return;
283 } 445 }
284 446
285 int avail, end; 447 int avail, end;
286 448
… …
304 } 466 }
305 467
306 outputbuffer.len += len; 468 outputbuffer.len += len;
307} 469}
308 470
309void
310client_socket::socket_cb (iow &w, int got)
311{
312 write_outputbuffer ();
313
314 if (!outputbuffer.len)
315 socket_ev.poll (socket_ev.poll () & ~PE_W);
316}
317
318/** 471/**
319 * Takes a string of data, and writes it out to the socket. A very handy 472 * Takes a string of data, and writes it out to the socket. A very handy
320 * shortcut function. 473 * shortcut function.
321 */ 474 */
322void 475void
323client_socket::send_packet (packet &sl) 476client::send_packet (packet &sl)
324{ 477{
325 if (status == Ns_Dead) 478 if (destroyed ())
326 return; 479 return;
327 480
328 if (sl.length () >= MAXSOCKBUF) 481 if (sl.length () >= MAXSOCKBUF)
329 { 482 {
330 LOG (llevError, "Trying to send a buffer beyond properly size, len =%d\n", sl.length ()); 483 LOG (llevError, "Trying to send a buffer beyond properly size, len =%d\n", sl.length ());
… …
344 497
345 send (sl.buf_, sl.length () + sl.hdrlen); 498 send (sl.buf_, sl.length () + sl.hdrlen);
346} 499}
347 500
348void 501void
349client_socket::send_packet (const char *buf, int len) 502client::send_packet (const char *buf, int len)
350{ 503{
351 packet sl; 504 packet sl;
352 505
353 sl << data (buf, len); 506 sl << data (buf, len);
354 send_packet (sl); 507 send_packet (sl);
355} 508}
356 509
357void 510void
358client_socket::send_packet (const char *buf) 511client::send_packet (const char *buf)
359{ 512{
360 send_packet (buf, strlen (buf)); 513 send_packet (buf, strlen (buf));
361} 514}
362 515
516void
517client::send_packet_printf (const char *format, ...)
518{
519 packet sl;
520
521 va_list ap;
522 va_start (ap, format);
523 sl.vprintf (format, ap);
524 va_end (ap);
525
526 send_packet (sl);
527}
528
529// returns true when the message needs special (read: perl) treatment
530static bool
531msg_is_special (const char *msg)
532{
533 return msg [strcspn (msg, "<[&\n")];
534}
535
536void
537client::send_msg (int color, const char *type, const char *msg)
538{
539 if (msg_is_special (msg))
540 cfperl_send_msg (this, color, type, msg);
541 else if (can_msg)
542 send_packet_printf ("msg %d %s %s", color, type, msg);
543 else if (color < 0)
544 return; // client cannot handle this
545 else
546 send_packet_printf ("drawinfo %d %s", color, msg);
547}
548
549void
550client::send_drawinfo (const char *msg, int flags)
551{
552 send_msg (flags, "log", msg);
553}
554
363/****************************************************************************** 555/***********************************************************************
364 * 556 *
365 * statistics logging functions. 557 * packet functions/utilities
366 * 558 *
367 ******************************************************************************/ 559 **********************************************************************/
368 560
369#ifdef CS_LOGSTATS 561packet::packet (const char *name)
370
371/* cst_tot is for the life of the server, cst_last is for the last series of
372 * stats
373 */
374CS_Stats cst_tot, cst_lst;
375
376/**
377 * Writes out the gathered stats. We clear cst_lst.
378 */
379void
380write_cs_stats (void)
381{ 562{
382 time_t now = time (NULL); 563 reset ();
383 564
384 /* If no connections recently, don't both to log anything */ 565 int len = strlen (name);
385 if (cst_lst.ibytes == 0 && cst_lst.obytes == 0) 566 memcpy (cur, name, len); cur += len;
386 return; 567 *cur++ = ' ';
387
388 /* CSSTAT is put in so scripts can easily find the line */
389 LOG (llevInfo, "CSSTAT: %.16s tot %d %d %d %d inc %d %d %d %d\n",
390 ctime (&now), cst_tot.ibytes, cst_tot.obytes, cst_tot.max_conn,
391 now - cst_tot.time_start, cst_lst.ibytes, cst_lst.obytes, cst_lst.max_conn, now - cst_lst.time_start);
392 cst_lst.ibytes = 0;
393 cst_lst.obytes = 0;
394 cst_lst.time_start = now;
395} 568}
396#endif
397 569
570packet &packet::operator <<(const ber32 v)
571{
572 enum { maxlen = 32 / 7 + 1};
573 uint8 buf[maxlen];
574 uint8 *p = buf + maxlen;
575 uint32 val = v.val;
576
577 *--p = val & 0x7F;
578
579 while (val > 0x7F)
580 {
581 val >>= 7;
582 *--p = (val & 0x7F) | 0x80;
583 }
584
585 return *this << data (p, buf + maxlen - p);
586}
587
588packet &packet::operator <<(const data &v)
589{
590 if (room () < v.len)
591 reset ();
592 else
593 {
594 if (v.len)
595 {
596 memcpy (cur, v.ptr, v.len);
597 cur += v.len;
598 }
599 }
600
601 return *this;
602}
603
604packet &packet::operator <<(const data8 &v)
605{
606 unsigned int len = min (v.len, 0x00FF);
607 return *this << uint8 (len) << data (v.ptr, len);
608}
609
610packet &packet::operator <<(const data16 &v)
611{
612 unsigned int len = min (v.len, 0xFFFF);
613 return *this << uint16 (len) << data (v.ptr, len);
614}
615
616packet &packet::operator <<(const char *v)
617{
618 return *this << data (v, strlen (v ? v : 0));
619}
620
621void
622packet::vprintf (const char *format, va_list ap)
623{
624 int size = room ();
625
626 int len = vsnprintf ((char *)cur, size, format, ap);
627
628 if (len >= size)
629 return reset ();
630
631 cur += len;
632}
633

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