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Comparing deliantra/server/include/client.h (file contents):
Revision 1.65 by root, Sat Jul 28 00:15:03 2007 UTC vs.
Revision 1.98 by root, Sun Apr 11 23:48:57 2010 UTC

1/* 1/*
2 * This file is part of Crossfire TRT, the Roguelike Realtime MORPG. 2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
3 * 3 *
4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team 4 * Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 * 5 *
8 * Crossfire TRT is free software: you can redistribute it and/or modify 6 * Deliantra is free software: you can redistribute it and/or modify it under
9 * it under the terms of the GNU General Public License as published by 7 * the terms of the Affero GNU General Public License as published by the
10 * the Free Software Foundation, either version 3 of the License, or 8 * Free Software Foundation, either version 3 of the License, or (at your
11 * (at your option) any later version. 9 * option) any later version.
12 * 10 *
13 * This program is distributed in the hope that it will be useful, 11 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details. 14 * GNU General Public License for more details.
17 * 15 *
18 * You should have received a copy of the GNU General Public License 16 * You should have received a copy of the Affero GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>. 17 * and the GNU General Public License along with this program. If not, see
18 * <http://www.gnu.org/licenses/>.
20 * 19 *
21 * The authors can be reached via e-mail to <crossfire@schmorp.de> 20 * The authors can be reached via e-mail to <support@deliantra.net>
22 */ 21 */
23 22
24#ifndef CLIENT_H 23#ifndef CLIENT_H
25#define CLIENT_H 24#define CLIENT_H
26
27#include <deque>
28#include <bitset>
29#include <tr1/unordered_set>
30 25
31#if HAVE_TCP_INFO 26#if HAVE_TCP_INFO
32# include <netinet/tcp.h> 27# include <netinet/tcp.h>
33#else 28#else
34 struct tcpi_info { 29 struct tcp_info {
35 // dummy 30 // dummy
36 char tcpi_state; 31 int tcpi_state;
37 char tcpi_ca_state; 32 int tcpi_ca_state;
38 char tcpi_retransmits; 33 int tcpi_retransmits;
39 char tcpi_probes; 34 int tcpi_probes;
40 char tcpi_backoff; 35 int tcpi_backoff;
41 char tcpi_options; 36 int tcpi_options;
42 char tcpi_snd_wscale; 37 int tcpi_snd_wscale;
43 char tcpi_rcv_wscale; 38 int tcpi_rcv_wscale;
44 char tcpi_rto; 39 int tcpi_rto;
45 char tcpi_ato; 40 int tcpi_ato;
46 char tcpi_snd_mss; 41 int tcpi_snd_mss;
47 char tcpi_rcv_mss; 42 int tcpi_rcv_mss;
48 char tcpi_unacked; 43 int tcpi_unacked;
49 char tcpi_sacked; 44 int tcpi_sacked;
50 char tcpi_lost; 45 int tcpi_lost;
51 char tcpi_retrans; 46 int tcpi_retrans;
52 char tcpi_fackets; 47 int tcpi_fackets;
53 char tcpi_last_data_sent; 48 int tcpi_last_data_sent;
54 char tcpi_last_ack_sent; 49 int tcpi_last_ack_sent;
55 char tcpi_last_data_recv; 50 int tcpi_last_data_recv;
56 char tcpi_last_ack_recv; 51 int tcpi_last_ack_recv;
57 char tcpi_pmtu; 52 int tcpi_pmtu;
58 char tcpi_rcv_ssthresh; 53 int tcpi_rcv_ssthresh;
59 char tcpi_rtt; 54 int tcpi_rtt;
60 char tcpi_rttvar; 55 int tcpi_rttvar;
61 char tcpi_snd_ssthresh; 56 int tcpi_snd_ssthresh;
62 char tcpi_snd_cwnd; 57 int tcpi_snd_cwnd;
63 char tcpi_advmss; 58 int tcpi_advmss;
64 char tcpi_reordering; 59 int tcpi_reordering;
65 }; 60 };
66#endif 61#endif
67 62
63//+GPL
64
68// (possibly) max. number of objects "per page" in the ground container 65// (possibly) max. number of objects "per page" in the ground container
69#define FLOORBOX_PAGESIZE 50 66#define FLOORBOX_PAGESIZE 50
70 67
71struct MapCell 68struct MapCell
72{ 69{
73 tag_t player; // this is, unfortunately, very wasteful of memory space, but pretty bandwidth-efficient 70 tag_t player; // this is, unfortunately, very wasteful of memory space, but pretty bandwidth-efficient
74 int count; /* This is really darkness in the map1 command */ 71 int count; /* This is really darkness in the map1 command */
75 faceidx faces[MAP_LAYERS]; 72 faceidx faces[MAP_LAYERS];
76 unsigned char stat_hp; // health of something in this space, or 0 73 unsigned char stat_hp; // health of something in this space, or 0
77 unsigned char flags; 74 unsigned char flags;
78 uint8_t smooth[MAP_LAYERS]; 75 uint8_t smooth[MAP_LAYERS];
… …
144{ 141{
145 tstamp stamp; 142 tstamp stamp;
146 const packet_type *handler; 143 const packet_type *handler;
147 char *data; 144 char *data;
148 int datalen; 145 int datalen;
149
150 ~command ()
151 {
152 sfree<char> (data, datalen + 1);
153 }
154}; 146};
147
148//-GPL
155 149
156/* how many times we are allowed to give the wrong password before being kicked. */ 150/* how many times we are allowed to give the wrong password before being kicked. */
157#define MAX_PASSWORD_FAILURES 5 151#define MAX_PASSWORD_FAILURES 5
158 152
159INTERFACE_CLASS (client) // should become player when newsocket is a baseclass of player 153INTERFACE_CLASS (client) // should become player when newsocket is a baseclass of player
… …
162 int ACC (RW, fd); 156 int ACC (RW, fd);
163 unsigned int inbuf_len; // number of bytes valid in inbuf 157 unsigned int inbuf_len; // number of bytes valid in inbuf
164 statsinfo stats; 158 statsinfo stats;
165 object_vector_index ACC (RO, active); 159 object_vector_index ACC (RO, active);
166 player_ptr ACC (RO, pl); 160 player_ptr ACC (RO, pl);
167
168 /* The following is the setup for a ring buffer for storing output
169 * data that the OS can't handle right away.
170 */
171 struct
172 {
173 char data[SOCKETBUFSIZE];
174 int start;
175 int len;
176 } outputbuffer;
177 161
178 char *ACC (RW, host); /* Which host it is connected from (ip address) */ 162 char *ACC (RW, host); /* Which host it is connected from (ip address) */
179 uint8 ACC (RW, state); /* Input state of the player (name, password, etc */ 163 uint8 ACC (RW, state); /* Input state of the player (name, password, etc */
180 164
181 sint8 ACC (RW, last_level); /* Last level we sent to client */ 165 sint8 ACC (RW, last_level); /* Last level we sent to client */
… …
189 living ACC (RO, last_stats); /* Last stats as sent to client */ 173 living ACC (RO, last_stats); /* Last stats as sent to client */
190 float ACC (RW, last_speed); /* Last speed as sent to client */ 174 float ACC (RW, last_speed); /* Last speed as sent to client */
191 sint16 ACC (RW, last_resist[NROFATTACKS]);/* last resist values sent to client */ 175 sint16 ACC (RW, last_resist[NROFATTACKS]);/* last resist values sent to client */
192 sint64 ACC (RW, last_skill_exp[NUM_SKILLS]);/* shadow register. if != exp. obj update client */ 176 sint64 ACC (RW, last_skill_exp[NUM_SKILLS]);/* shadow register. if != exp. obj update client */
193 177
194 bool ACC (RW, force_face0); // client workaround for buggy checksum calculation in gcfclient
195 bool ACC (RW, force_bad_checksum); // client workaround for buggy checksum calculation in gcfclient
196 bool ACC (RW, force_image_newmap); // client workaround for client not redrawing map on image upload
197 bool ACC (RW, enable_bg_scrub); // client workaround, gcfclient becomes unusable if you send it images
198
199 bool ACC (RW, afk); /* player is afk */ 178 bool ACC (RW, afk); /* player is afk */
200 bool ACC (RW, facecache); /* If true, client is caching images */
201 bool ACC (RW, sent_scroll); 179 bool ACC (RW, sent_scroll);
202 bool ACC (RW, sound); /* does the client want sound */ 180 bool ACC (RW, sound); /* does the client want sound */
203 bool ACC (RW, newmapcmd); /* Send newmap command when entering new map SMACFIGGEN */ 181 bool ACC (RW, newmapcmd); /* Send newmap command when entering new map SMACFIGGEN */
182
204 bool ACC (RW, plugincmd); // extend the protocol through a plug-in */ 183 bool ACC (RW, plugincmd); // extend the protocol through a plug-in */
205 bool ACC (RW, mapinfocmd); // return map info and send map change info 184 bool ACC (RW, mapinfocmd); // return map info and send map change info
206 uint8_t ACC (RW, extcmd); // call into extensions/plugins 185 uint8_t ACC (RW, extcmd); // call into extensions/plugins
207 bool ACC (RW, extmap); // extend map comamnd with extra data 186 bool ACC (RW, need_delinv0); /* If true, we need to delinv 0 before sending new floorbox */
208 bool ACC (RW, buggy_mapscroll); // client crashes on large mapscrolls
209 bool ACC (RW, darkness); /* True if client wants darkness information */
210 bool ACC (RW, image2); /* Client wants image2/face2 commands */
211 uint8_t ACC (RW, fxix); // client implements fx and ix (face|image extended) commands
212 bool ACC (RW, update_look); /* If true, we need to send the look window */ 187 bool ACC (RW, update_look); /* If true, we need to send the look window */
188 bool ACC (RW, update_spells); // If true, we need to esrv_update_spells
213 bool ACC (RW, has_readable_type); /* If true client accept additional text information */ 189 bool ACC (RW, has_readable_type); /* If true client accept additional text information */
214 /* used to arrange text in books, scrolls, or scripted dialogs */ 190 /* used to arrange text in books, scrolls, or scripted dialogs */
215 bool ACC (RW, monitor_spells); /* Client wishes to be informed when their spell list changes */ 191 bool ACC (RW, monitor_spells); /* Client wishes to be informed when their spell list changes */
216 bool ACC (RW, ext_mapinfos); /* If true client accepts additional info on maps */
217 /* Below are flags for extedend infos to pass to client
218 * with S->C mapextended command */
219 bool ACC (RW, EMI_smooth); /* Send smooth in extendmapinfos */
220 bool ACC (RW, smoothing); // trt-style smoothing 192 bool ACC (RW, smoothing); // deliantra-style smoothing
221 bool ACC (RW, can_msg); // trt-style text messages
222 193
223 bool ACC (RW, force_newmap); // force a newmap before next map update 194 bool ACC (RW, force_newmap); // force a newmap before next map update
224 uint32 ACC (RW, supported_readables); /* each bit is a readable supported by client */
225 uint32 ACC (RW, cs_version), ACC (RW, sc_version); /* versions of the client */
226 uint16 ACC (RW, look_position); /* start of drawing of look window */ 195 uint16 ACC (RW, look_position); /* start of drawing of look window */
227 uint16 ACC (RW, mss); // likely tcp maximum segment size 196 uint16 ACC (RW, mss); // likely tcp maximum segment size
228 uint8 ACC (RW, mapmode); /* Type of map commands the client wants. */ 197 uint8 ACC (RW, mapmode); /* Type of map commands the client wants. */
229 uint8 ACC (RW, mapx), ACC (RW, mapy); /* How large a map the client wants */ 198 uint8 ACC (RW, mapx), ACC (RW, mapy); /* How large a map the client wants */
230 uint8 ACC (RW, itemcmd); /* What version of the 'item' protocol command to use */ 199 uint8 ACC (RW, itemcmd); /* What version of the 'item' protocol command to use */
231 200
232 maptile *ACC (RW, current_map); // CF+ last/current player map 201 maptile_ptr ACC (RW, current_map); // CF+ last/current player map
233 region *ACC (RW, current_region); // CF+ last/current player region 202 region_ptr ACC (RW, current_region); // CF+ last/current player region
234 int ACC (RW, current_x), ACC (RW, current_y); // CF+ last/current map position 203 int ACC (RW, current_x), ACC (RW, current_y); // CF+ last/current map position
235 shstr ACC (RW, version); // CF+ client name/version
236 uint8 ACC (RW, faceset); // CF+ selected faceset 204 uint8 ACC (RW, faceset); // CF+ selected faceset
237 205
238 tstamp ACC (RW, last_send); // last data send on socket. 206 tstamp ACC (RW, last_send); // last data send on socket.
239 207
208 float ACC (RW, socket_timeout); /* after how many seconds of no ack do we declare dead */
240 int ACC (RW, rate_avail); // current rate balance 209 int ACC (RW, rate_avail); // current rate balance
241 int ACC (RW, max_rate); // max. # of bytes to send per tick 210 int ACC (RW, max_rate); // max. # of bytes to send per tick
242 faceidx ACC (RW, scrub_idx); // which face to send next 211 faceidx ACC (RW, scrub_idx); // which face to send next
243 int ACC (RW, bg_scrub); // how many ticks till the next background face send 212 int ACC (RW, bg_scrub); // how many ticks till the next background face send
244 213
245 struct tcp_info tcpi; 214 struct tcp_info tcpi;
246 tstamp next_rate_adjust; 215 tstamp next_rate_adjust;
216
217 unordered_vector<char *> mapinfo_queue;
218 void mapinfo_queue_clear ();
219 void mapinfo_queue_run ();
220 bool mapinfo_try (char *buf);
221
222 struct ixsend {
223 int16_t pri; // unused
224 faceidx idx;
225 uint32_t ofs; // if != 0, need to send remaining bytes of partial_face
226 };
227 std::vector<ixsend, slice_allocator<ixsend> > ixface; // which faces to send to the client using ix
228
229 std::vector<faceidx, slice_allocator<faceidx> > fxface; // which faces to send using fx
230 MTH void flush_fx (); // send fx if required
231
232 void do_destroy ();
233 void gather_callbacks (AV *&callbacks, event_type event) const;
234
235 iow socket_ev; void socket_cb (iow &w, int revents);
236
237 std::deque< command, slice_allocator<command> > cmd_queue;
238
239 // large structures at the end please
240 struct Map lastmap;
241 std::bitset<MAXANIMNUM> anims_sent;
242 std::bitset<MAX_FACES> faces_sent;
243 std::bitset<FT_NUM> fx_want;
244
245 // if we get an incomplete packet, this is used to hold the data.
246 // we add 2 byte for the header, one for the trailing 0 byte
247 uint8 inbuf[MAXSOCKBUF + 2 + 1];
248
249 enum { MSG_BUF_SIZE = 80, MSG_BUF_COUNT = 10 };
250 struct msg_buf
251 {
252 tick_t expire;
253 int len;
254 int count;
255 char msg[MSG_BUF_SIZE];
256 } msgbuf[MSG_BUF_COUNT];
257
258 MTH bool msg_suppressed (const_utf8_string msg);
259
260 /* The following is the setup for a ring buffer for storing output
261 * data that the OS can't handle right away.
262 * TODO: this member is enourmously large - optimise?
263 */
264 struct
265 {
266 char data[SOCKETBUFSIZE];
267 int start;
268 int len;
269 } outputbuffer;
270
271 bool may_execute (const packet_type *pkt) const;
272 void execute (const packet_type *pkt, char *data, int datalen);
273
274 void queue_command (packet_type *handler, char *data, int datalen);
275 MTH bool handle_command ();
276 // resets movement state
277 MTH void reset_state ();
278 // resets variable data used to send stat diffs
279 MTH void reset_stats ();
280
281 MTH bool handle_packet ();
282 int next_packet (); // returns length of packet or 0
283 void skip_packet (int len); // we have processed the packet, skip it
284
285 MTH void flush ();
286 MTH void write_outputbuffer ();
287 MTH int outputbuffer_len () const { return outputbuffer.len; }
288 void send (void *buf_, int len);
289
290 void send_packet (const_octet_string buf);
291 void send_packet (const_octet_string buf, int len);
292 void send_packet_printf (const_utf8_string format, ...) attribute ((format (printf, 2, 3)));
293 void send_packet (packet &sl);
294
295 void send_drawinfo (const_utf8_string msg, int flags = NDI_BLACK);
296
297 MTH void send_face (faceidx facenum, int pri = 0);
298 MTH void send_faces (object *ob);
299 MTH void send_animation (short anim_num);
300 void send_msg (int color, const_utf8_string type, const_utf8_string msg);
301
302 MTH void play_sound (faceidx sound, int dx = 0, int dy = 0);
303 // called when something under the player changes
304 MTH void floorbox_update () { update_look = 1; }
305 // called when the player has been moved
306 MTH void floorbox_reset () { look_position = 0; floorbox_update (); }
307
308 MTH void tick (); // called every server tick to do housekeeping etc.
309
310 MTH static client *create (int fd, const char *peername);
311 MTH static void clock ();
312 MTH static void flush_sockets ();
313
314protected:
315 client (int fd, const char *from_ip);
316 ~client ();
317};
318
247#if FOR_PERL 319#if FOR_PERL
248 // unfortunately, this emans that we *require* tcp_info now...
249 ACC (RW, tcpi.tcpi_state); 320 ACC (RW, tcpi.tcpi_state);
250 ACC (RW, tcpi.tcpi_ca_state); 321 ACC (RW, tcpi.tcpi_ca_state);
251 ACC (RW, tcpi.tcpi_retransmits); 322 ACC (RW, tcpi.tcpi_retransmits);
252 ACC (RW, tcpi.tcpi_probes); 323 ACC (RW, tcpi.tcpi_probes);
253 ACC (RW, tcpi.tcpi_backoff); 324 ACC (RW, tcpi.tcpi_backoff);
… …
275 ACC (RW, tcpi.tcpi_snd_cwnd); 346 ACC (RW, tcpi.tcpi_snd_cwnd);
276 ACC (RW, tcpi.tcpi_advmss); 347 ACC (RW, tcpi.tcpi_advmss);
277 ACC (RW, tcpi.tcpi_reordering); 348 ACC (RW, tcpi.tcpi_reordering);
278#endif 349#endif
279 350
280 struct ixsend { 351//+GPL
281 int16_t pri; // unused
282 faceidx idx;
283 uint32_t ofs; // if != 0, need to send remaining bytes of partial_face
284 };
285 std::vector<ixsend, slice_allocator<ixsend> > ixface; // which faces to send to the client using ix
286
287 std::vector<faceidx, slice_allocator<faceidx> > fxface; // which faces to send using fx
288 MTH void flush_fx (); // send fx if required
289
290 void do_destroy ();
291 void gather_callbacks (AV *&callbacks, event_type event) const;
292
293 iow socket_ev; void socket_cb (iow &w, int got);
294 iw cmd_ev; void cmd_cb (iw &w);
295
296 std::deque< command, slice_allocator<command> > cmd_queue;
297
298 // large structures at the end please
299 struct Map lastmap;
300 std::bitset<MAXANIMNUM> anims_sent;
301 std::bitset<MAX_FACES> faces_sent;
302 std::bitset<FT_NUM> fx_want;
303
304 // if we get an incomplete packet, this is used to hold the data.
305 // we add 2 byte for the header, one for the trailing 0 byte
306 uint8 inbuf[MAXSOCKBUF + 2 + 1];
307
308 enum { MSG_BUF_SIZE = 80, MSG_BUF_COUNT = 10 };
309 struct msg_buf
310 {
311 tick_t expire;
312 int len;
313 int count;
314 char msg[MSG_BUF_SIZE];
315 } msgbuf[MSG_BUF_COUNT];
316
317 MTH bool msg_suppressed (const char *msg);
318
319 bool may_execute (const packet_type *pkt) const;
320 void execute (const packet_type *pkt, char *data, int datalen);
321
322 void queue_command (packet_type *handler, char *data, int datalen);
323 MTH bool handle_command ();
324 // resets movement state
325 MTH void reset_state ();
326 // resets variable data used to send stat diffs
327 MTH void reset_stats ();
328
329 MTH bool handle_packet ();
330 int next_packet (); // returns length of packet or 0
331 void skip_packet (int len); // we have processed the packet, skip it
332
333 MTH void flush ();
334 MTH void write_outputbuffer ();
335 MTH int outputbuffer_len () const { return outputbuffer.len; }
336 void send (void *buf_, int len);
337
338 void send_packet (const char *buf);
339 void send_packet (const char *buf, int len);
340 void send_packet_printf (const char *format, ...);
341 void send_packet (packet &sl);
342
343 void send_drawinfo (const char *msg, int flags = NDI_BLACK);
344
345 MTH void send_face (faceidx facenum, int pri = 0);
346 MTH void send_image (faceidx facenum);
347 MTH void send_faces (object *ob);
348 MTH void send_animation (short anim_num);
349 void send_msg (int color, const char *type, const char *msg);
350
351 MTH void play_sound (faceidx sound, int dx = 0, int dy = 0);
352 // called when something under the player changes
353 MTH void floorbox_update () { update_look = 1; }
354 // called when the player has been moved
355 MTH void floorbox_reset () { look_position = 0; floorbox_update (); }
356
357 MTH void tick (); // called every server tick to do housekeeping etc.
358
359 MTH static client *create (int fd, const char *peername);
360
361protected:
362 client (int fd, const char *from_ip);
363 ~client ();
364};
365 352
366#define CLIENT_SUPPORT_READABLES(__sockPtr,__type)\ 353#define CLIENT_SUPPORT_READABLES(__sockPtr,__type)\
367 ( ((__type)>0) &&\ 354 ( ((__type)>0) &&\
368 ((__sockPtr)->has_readable_type) && \ 355 ((__sockPtr)->has_readable_type) && \
369 ((__sockPtr)->supported_readables & (1<<(__type))) ) 356 ((__sockPtr)->supported_readables & (1<<(__type))) )
370 357
371/* Constants in the form EMI_ is for extended map infos.
372 * Even if the client select the additionnal infos it wants
373 * on the map, there may exist cases where this whole info
374 * is not given in one buch but in separate bunches. This
375 * is done performance reasons (imagine some info related to
376 * a visible object and another info related to a 4 square
377 * width and height area). At the begin of an extended info packet
378 * is a bit field. A bit is activated for each extended info
379 * present in the data
380 */
381
382/* Meanings:
383 * EMI_NOREDRAW Take extended infos into account but don't redraw,
384 * some additionnal datas will follow in a new packet
385 * EMI_SMOOTH Datas about smoothing
386 */
387#define EMI_NOREDRAW 0x01
388#define EMI_SMOOTH 0x02
389
390/* this last one says the bitfield continue un next byte
391 * There may be several on contiguous bytes. So there is 7
392 * actual bits used per byte, and the number of bytes
393 * is not fixed in protocol
394 */
395#define EMI_HASMOREBITS 0x80
396
397#define FACE_TYPES 1 358#define FACE_TYPES 1
398#define PNG_FACE_INDEX 0 359#define PNG_FACE_INDEX 0
399 360
400#define VERSION_CS 1023 /* version >= 1023 understand setup cmd */ 361//-GPL
401#define VERSION_SC 1026
402//#define VERSION_SC 1027 // requestinfo image_info and image_sums, makes extending faces on the fly impossible
403#define VERSION_INFO "Crossfire TRT Server"
404 362
405typedef object_vector<client, &client::active> sockvec; 363typedef object_vector<client, &client::active> sockvec;
406 364
407extern sockvec clients; 365extern sockvec clients;
408 366
409#define for_all_clients(var) \ 367#define for_all_clients(var) \
410 for (int _i = 0; _i < clients.size (); ++_i) \ 368 for (int _i = 0; _i < clients.size (); ++_i) \
411 statementvar (client *, var, clients [_i]) 369 statementvar (client *, var, clients [_i])
412 370
371// returns true when the message needs special (read: perl) treatment
372static inline bool
373msg_is_special (const_any_string msg, bool nl_special = true)
374{
375 return msg [strcspn (msg, nl_special ? "<&\n" : "<&")];
376}
377
413#endif 378#endif
414 379

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