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Comparing deliantra/server/socket/loop.C (file contents):
Revision 1.1 by elmex, Sun Aug 13 17:16:06 2006 UTC vs.
Revision 1.9 by root, Tue Dec 12 20:53:03 2006 UTC

1
2/*
3 * static char *rcsid_loop_c =
4 * "$Id: loop.C,v 1.1 2006/08/13 17:16:06 elmex Exp $";
5 */
6
7/* 1/*
8 CrossFire, A Multiplayer game for X-windows 2 CrossFire, A Multiplayer game for X-windows
9 3
10 Copyright (C) 2002-2003 Mark Wedel & The Crossfire Development Team 4 Copyright (C) 2002-2003 Mark Wedel & The Crossfire Development Team
11 Copyright (C) 1992 Frank Tore Johansen 5 Copyright (C) 1992 Frank Tore Johansen
… …
22 16
23 You should have received a copy of the GNU General Public License 17 You should have received a copy of the GNU General Public License
24 along with this program; if not, write to the Free Software 18 along with this program; if not, write to the Free Software
25 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 20
27 The author can be reached via e-mail to crossfire-devel@real-time.com 21 The author can be reached via e-mail to <crossfire@schmorp.de>
28*/ 22*/
29 23
30/** 24/**
31 * \file 25 * \file
32 * Main client/server loops. 26 * Main client/server loops.
… …
39 */ 33 */
40 34
41 35
42#include <global.h> 36#include <global.h>
43#ifndef __CEXTRACT__ 37#ifndef __CEXTRACT__
44#include <sproto.h> 38# include <sproto.h>
45#include <sockproto.h> 39# include <sockproto.h>
46#endif 40#endif
47 41
48#ifndef WIN32 /* ---win32 exclude unix headers */
49#include <sys/types.h> 42#include <sys/types.h>
50#include <sys/time.h> 43#include <sys/time.h>
51#include <sys/socket.h> 44#include <sys/socket.h>
52#include <netinet/in.h> 45#include <netinet/in.h>
53#include <netdb.h> 46#include <netdb.h>
54#endif /* end win32 */
55 47
56#ifdef HAVE_UNISTD_H 48#ifdef HAVE_UNISTD_H
57#include <unistd.h> 49# include <unistd.h>
58#endif 50#endif
59 51
60#ifdef HAVE_ARPA_INET_H 52#ifdef HAVE_ARPA_INET_H
61#include <arpa/inet.h> 53# include <arpa/inet.h>
62#endif 54#endif
63 55
64#include <loader.h> 56#include <loader.h>
65#include <newserver.h> 57#include <newserver.h>
66 58
… …
75 * before player joins, and those happen after the player has joined. 67 * before player joins, and those happen after the player has joined.
76 * As such, we have function types that might be called, so 68 * As such, we have function types that might be called, so
77 * we end up having 2 tables. 69 * we end up having 2 tables.
78 */ 70 */
79 71
80typedef void (*func_uint8_int_ns) (char*, int, NewSocket *); 72typedef void (*func_uint8_int_ns) (char *, int, NewSocket *);
81 73
82struct NsCmdMapping { 74struct NsCmdMapping
75{
83 const char *cmdname; 76 const char *cmdname;
84 func_uint8_int_ns cmdproc; 77 func_uint8_int_ns cmdproc;
85}; 78};
86 79
87typedef void (*func_uint8_int_pl)(char*, int, player *); 80typedef void (*func_uint8_int_pl) (char *, int, player *);
88struct PlCmdMapping { 81struct PlCmdMapping
82{
89 const char *cmdname; 83 const char *cmdname;
90 func_uint8_int_pl cmdproc; 84 func_uint8_int_pl cmdproc;
91 uint8 flag; 85 uint8 flag;
92}; 86};
93 87
94/** 88/**
95 * Dispatch table for the server. 89 * Dispatch table for the server.
96 * 90 *
… …
103 * to cast it here instead of a bunch of times in the function itself. 97 * to cast it here instead of a bunch of times in the function itself.
104 * flag is 1 if the player must be in the playing state to issue the 98 * flag is 1 if the player must be in the playing state to issue the
105 * command, 0 if they can issue it at any time. 99 * command, 0 if they can issue it at any time.
106 */ 100 */
107static struct PlCmdMapping plcommands[] = { 101static struct PlCmdMapping plcommands[] = {
108 { "examine", ExamineCmd, 1}, 102 {"examine", ExamineCmd, 1},
109 { "apply", ApplyCmd, 1}, 103 {"apply", ApplyCmd, 1},
110 { "move", MoveCmd, 1}, 104 {"move", MoveCmd, 1},
111 { "reply", ReplyCmd, 0}, 105 {"reply", ReplyCmd, 0},
112 { "command", PlayerCmd, 1}, 106 {"command", PlayerCmd, 1},
113 { "ncom", (func_uint8_int_pl)NewPlayerCmd, 1}, 107 {"ncom", (func_uint8_int_pl) NewPlayerCmd, 1},
114 { "lookat", LookAt, 1}, 108 {"lookat", LookAt, 1},
115 { "lock", (func_uint8_int_pl)LockItem, 1}, 109 {"lock", (func_uint8_int_pl) LockItem, 1},
116 { "mark", (func_uint8_int_pl)MarkItem, 1}, 110 {"mark", (func_uint8_int_pl) MarkItem, 1},
117 { "mapredraw", MapRedrawCmd, 0}, /* Added: phil */ 111 {"mapredraw", MapRedrawCmd, 0}, /* Added: phil */
118 { "mapinfo", MapInfoCmd, 2}, /* CF+ */ 112 {"mapinfo", MapInfoCmd, 2}, /* CF+ */
119 { "ext", ExtCmd, 2}, /* CF+ */ 113 {"ext", ExtCmd, 2}, /* CF+ */
120 { NULL, NULL, 0} /* terminator */ 114 {NULL, NULL, 0} /* terminator */
121}; 115};
122 116
123/** Face-related commands */ 117/** Face-related commands */
124static struct NsCmdMapping nscommands[] = { 118static struct NsCmdMapping nscommands[] = {
125 { "addme", AddMeCmd }, 119 {"addme", AddMeCmd},
126 { "askface", SendFaceCmd}, /* Added: phil */ 120 {"askface", SendFaceCmd}, /* Added: phil */
127 { "requestinfo", RequestInfo}, 121 {"requestinfo", RequestInfo},
128 { "setfacemode", SetFaceMode}, 122 {"setfacemode", SetFaceMode},
129 { "setsound", SetSound}, 123 {"setsound", SetSound},
130 { "setup", SetUp}, 124 {"setup", SetUp},
131 { "version", VersionCmd }, 125 {"version", VersionCmd},
132 { "toggleextendedinfos", ToggleExtendedInfos}, /*Added: tchize*/ 126 {"toggleextendedinfos", ToggleExtendedInfos}, /*Added: tchize */
133 { "toggleextendedtext", ToggleExtendedText}, /*Added: tchize*/ 127 {"toggleextendedtext", ToggleExtendedText}, /*Added: tchize */
134 { "asksmooth", AskSmooth}, /*Added: tchize (smoothing technologies)*/ 128 {"asksmooth", AskSmooth}, /*Added: tchize (smoothing technologies) */
135 { NULL, NULL} /* terminator (I, II & III)*/ 129 {NULL, NULL} /* terminator (I, II & III) */
136}; 130};
137 131
138/** 132/**
139 * RequestInfo is sort of a meta command. There is some specific 133 * RequestInfo is sort of a meta command. There is some specific
140 * request of information, but we call other functions to provide 134 * request of information, but we call other functions to provide
141 * that information. 135 * that information.
142 */ 136 */
137void
143void RequestInfo(char *buf, int len, NewSocket *ns) 138RequestInfo (char *buf, int len, NewSocket * ns)
144{ 139{
145 char *params=NULL, *cp; 140 char *params = NULL, *cp;
141
146 /* No match */ 142 /* No match */
147 char bigbuf[MAX_BUF]; 143 char bigbuf[MAX_BUF];
148 int slen; 144 int slen;
149 145
150 /* Set up replyinfo before we modify any of the buffers - this is used 146 /* Set up replyinfo before we modify any of the buffers - this is used
151 * if we don't find a match. 147 * if we don't find a match.
152 */ 148 */
153 strcpy(bigbuf,"replyinfo "); 149 strcpy (bigbuf, "replyinfo ");
154 slen = strlen(bigbuf); 150 slen = strlen (bigbuf);
155 safe_strcat(bigbuf, buf, &slen, MAX_BUF); 151 safe_strcat (bigbuf, buf, &slen, MAX_BUF);
156 152
157 /* find the first space, make it null, and update the 153 /* find the first space, make it null, and update the
158 * params pointer. 154 * params pointer.
159 */ 155 */
160 for (cp = buf; *cp != '\0'; cp++) 156 for (cp = buf; *cp != '\0'; cp++)
161 if (*cp==' ') { 157 if (*cp == ' ')
158 {
162 *cp = '\0'; 159 *cp = '\0';
163 params = cp + 1; 160 params = cp + 1;
164 break; 161 break;
165 } 162 }
166 if (!strcmp(buf, "image_info")) send_image_info(ns, params); 163 if (!strcmp (buf, "image_info"))
167 else if (!strcmp(buf,"image_sums")) send_image_sums(ns, params); 164 send_image_info (ns, params);
168 else if (!strcmp(buf,"skill_info")) send_skill_info(ns, params); 165 else if (!strcmp (buf, "image_sums"))
169 else if (!strcmp(buf,"spell_paths")) send_spell_paths(ns, params); 166 send_image_sums (ns, params);
167 else if (!strcmp (buf, "skill_info"))
168 send_skill_info (ns, params);
169 else if (!strcmp (buf, "spell_paths"))
170 send_spell_paths (ns, params);
171 else
170 else Write_String_To_Socket(ns, bigbuf, len); 172 Write_String_To_Socket (ns, bigbuf, len);
171} 173}
172
173/**
174 * Handles old socket format.
175 */
176void Handle_Oldsocket(NewSocket *ns)
177{
178 int stat,i;
179 CommFunc command;
180 char buf[MAX_BUF],*cp;
181 object ob;
182 player pl;
183
184 /* This is not the most efficient block, but keeps the code simpler -
185 * we basically read a byte at a time until we get a newline, error,
186 * or no more characters to read.
187 */
188 do {
189 /* hack to disable old socket mode without creating too many conflicts */
190 if (1 || ns->inbuf.len >= MAXSOCKBUF-1) {
191 ns->status = Ns_Dead;
192 LOG(llevDebug, "Old input socket sent too much data without newline\n");
193 return;
194 }
195#ifdef WIN32 /* ***win32: change oldsocket read() to recv() */
196 stat = recv(ns->fd, ns->inbuf.buf + ns->inbuf.len, 1,0);
197
198 if (stat==-1 && WSAGetLastError() !=WSAEWOULDBLOCK) {
199#else
200 do {
201 stat = read(ns->fd, ns->inbuf.buf + ns->inbuf.len, 1);
202 } while ((stat<0) && (errno == EINTR));
203
204 if (stat<0 && errno != EAGAIN && errno !=EWOULDBLOCK) {
205#endif
206 LOG(llevError, "Cannot read from socket: %s\n", strerror_local(errno));
207 ns->status = Ns_Dead;
208 return;
209 }
210 if (stat == 0) return;
211 } while (ns->inbuf.buf[ns->inbuf.len++]!='\n');
212
213 ns->inbuf.buf[ns->inbuf.len]=0;
214
215 cp = strchr((const char*)ns->inbuf.buf, ' ');
216 if (cp) {
217 /* Replace the space with a null, skip any more spaces */
218 *cp++=0;
219 while (isspace(*cp)) cp++;
220 }
221
222 /* Strip off all spaces and control characters from end of line */
223 for (i=ns->inbuf.len-1; i>=0; i--) {
224 if (ns->inbuf.buf[i]<=32) ns->inbuf.buf[i]=0;
225 else break;
226 }
227 ns->inbuf.len=0; /* reset for next read */
228
229 /* If just a return, don't do anything */
230 if (ns->inbuf.buf[0] == 0) return;
231 if (!strcasecmp((const char*)ns->inbuf.buf,"quit")) {
232 ns->status = Ns_Dead;
233 return;
234 }
235 if (!strcasecmp((const char*)ns->inbuf.buf, "listen")) {
236 if (cp) {
237 char *buf="Socket switched to listen mode\n";
238
239 free(ns->comment);
240 ns->comment = strdup_local(cp);
241 ns->old_mode = Old_Listen;
242 cs_write_string(ns, buf, strlen(buf));
243 } else {
244 char *buf="Need to supply a comment/url to listen\n";
245 cs_write_string(ns, buf, strlen(buf));
246 }
247 return;
248 }
249 if (!strcasecmp((const char*)ns->inbuf.buf, "name")) {
250 char *cp1=NULL;
251 if (cp) cp1= strchr(cp, ' ');
252 if (cp1) {
253 *cp1++ = 0;
254 while (isspace(*cp1)) cp1++;
255 }
256 if (!cp || !cp1) {
257 char *buf="Need to provide a name/password to name\n";
258 cs_write_string(ns, buf, strlen(buf));
259 return;
260 }
261
262 if (verify_player(cp, cp1)==0) {
263 char *buf="Welcome back\n";
264 free(ns->comment);
265 ns->comment = strdup_local(cp);
266 ns->old_mode = Old_Player;
267 cs_write_string(ns, buf, strlen(buf));
268 }
269 else if (verify_player(cp, cp1)==2) {
270 ns->password_fails++;
271 if (ns->password_fails >= MAX_PASSWORD_FAILURES) {
272 char *buf="You failed to log in too many times, you will now be kicked.\n";
273 LOG(llevInfo, "A player connecting from %s in oldsocketmode has been dropped for password failure\n",
274 ns->host);
275 cs_write_string(ns, buf, strlen(buf));
276 ns->status = Ns_Dead;
277 }
278 else {
279 char *buf="Could not login you in. Check your name and password.\n";
280 cs_write_string(ns, buf, strlen(buf));
281 }
282 }
283 else {
284 char *buf="Could not login you in. Check your name and password.\n";
285 cs_write_string(ns, buf, strlen(buf));
286 }
287 return;
288 }
289
290 command = find_oldsocket_command((char*)ns->inbuf.buf);
291 if (!command && ns->old_mode==Old_Player) {
292 command = find_oldsocket_command2((char*)ns->inbuf.buf);
293 }
294 if (!command) {
295 snprintf(buf, sizeof(buf), "Could not find command: %s\n", ns->inbuf.buf);
296 cs_write_string(ns, buf, strlen(buf));
297 return;
298 }
299
300 /* This is a bit of a hack, but works. Basically, we make some
301 * fake object and player pointers and give at it.
302 * This works as long as the functions we are calling don't need
303 * to do anything to the object structure (ie, they are only
304 * outputting information and not actually updating anything much.)
305 */
306 ob.contr = &pl;
307 pl.ob = &ob;
308 ob.type = PLAYER;
309 pl.listening = 10;
310 pl.socket = *ns;
311 pl.outputs_count = 1;
312 ob.name = ns->comment;
313
314 command(&ob, cp);
315}
316
317 174
318/** 175/**
319 * Handle client input. 176 * Handle client input.
320 * 177 *
321 * HandleClient is actually not named really well - we only get here once 178 * HandleClient is actually not named really well - we only get here once
… …
323 * sock is the output socket information. pl is the player associated 180 * sock is the output socket information. pl is the player associated
324 * with this socket, null if no player (one of the init_sockets for just 181 * with this socket, null if no player (one of the init_sockets for just
325 * starting a connection) 182 * starting a connection)
326 */ 183 */
327 184
185void
328void HandleClient(NewSocket *ns, player *pl) 186HandleClient (NewSocket * ns, player *pl)
329{ 187{
330 int len=0,i,cnt; 188 int len = 0, i, cnt;
331 char *data; 189 char *data;
332 190
333 /* Loop through this - maybe we have several complete packets here. */ 191 /* Loop through this - maybe we have several complete packets here. */
334 // limit to a few commands only, though, as to not monopolise the server 192 // limit to a few commands only, though, as to not monopolise the server
335 for (cnt = 16; cnt--; ) { 193 for (cnt = 16; cnt--;)
194 {
336 /* If it is a player, and they don't have any speed left, we 195 /* If it is a player, and they don't have any speed left, we
337 * return, and will read in the data when they do have time. 196 * return, and will read in the data when they do have time.
338 */ 197 */
339 if (pl && pl->state==ST_PLAYING && pl->ob != NULL && pl->ob->speed_left < 0) { 198 if (pl && pl->state == ST_PLAYING && pl->ob != NULL && pl->ob->speed_left < 0)
199 {
340 return; 200 return;
341 } 201 }
342 202
343 if (ns->status == Ns_Old) {
344 Handle_Oldsocket(ns);
345 return;
346 }
347 i=SockList_ReadPacket(ns->fd, &ns->inbuf, MAXSOCKBUF-1); 203 i = SockList_ReadPacket (ns->fd, &ns->inbuf, MAXSOCKBUF - 1);
348 /* Special hack - let the user switch to old mode if in the Ns_Add
349 * phase. Don't demand they add in the special length bytes
350 */
351 if (ns->status == Ns_Add) {
352 if (!strncasecmp((const char*)ns->inbuf.buf,"oldsocketmode", 13)) {
353 ns->status = Ns_Old;
354 ns->inbuf.len=0;
355 cs_write_string(ns, "Switched to old socket mode\n", 28);
356 LOG(llevDebug,"Switched socket to old socket mode\n");
357 return;
358 }
359 }
360 204
361 if (i<0) { 205 if (i < 0)
206 {
362#ifdef ESRV_DEBUG 207#ifdef ESRV_DEBUG
363 LOG(llevDebug,"HandleClient: Read error on connection player %s\n", (pl?pl->ob->name:"None")); 208 LOG (llevDebug, "HandleClient: Read error on connection player %s\n", (pl ? pl->ob->name : "None"));
364#endif 209#endif
365 /* Caller will take care of cleaning this up */ 210 /* Caller will take care of cleaning this up */
366 ns->status =Ns_Dead; 211 ns->status = Ns_Dead;
367 return; 212 return;
368 } 213 }
369 /* Still dont have a full packet */ 214 /* Still dont have a full packet */
370 if (i==0) return; 215 if (i == 0)
216 return;
371 217
372// //D//TODO//temporarily log long commands 218// //D//TODO//temporarily log long commands
373// if (ns->inbuf.len >= 40 && pl && pl->ob) 219// if (ns->inbuf.len >= 40 && pl && pl->ob)
374// LOG (llevDebug, "HandleClient: long comamnd from <%s,%s> %d<%s>\n", pl->ob->name, ns->host, ns->inbuf.len, ns->inbuf.buf + 2); 220// LOG (llevDebug, "HandleClient: long comamnd from <%s,%s> %d<%s>\n", pl->ob->name, ns->host, ns->inbuf.len, ns->inbuf.buf + 2);
375 221
376 /* First, break out beginning word. There are at least 222 /* First, break out beginning word. There are at least
377 * a few commands that do not have any paremeters. If 223 * a few commands that do not have any paremeters. If
378 * we get such a command, don't worry about trying 224 * we get such a command, don't worry about trying
379 * to break it up. 225 * to break it up.
380 */ 226 */
381 data = (char *)strchr((char*)ns->inbuf.buf +2, ' '); 227 data = (char *) strchr ((char *) ns->inbuf.buf + 2, ' ');
382 if (data) { 228 if (data)
229 {
383 *data='\0'; 230 *data = '\0';
384 data++; 231 data++;
385 len = ns->inbuf.len - (data - (char*)ns->inbuf.buf); 232 len = ns->inbuf.len - (data - (char *) ns->inbuf.buf);
386 } 233 }
387 else len=0; 234 else
235 len = 0;
388 236
389 ns->inbuf.buf[ns->inbuf.len]='\0'; /* Terminate buffer - useful for string data */ 237 ns->inbuf.buf[ns->inbuf.len] = '\0'; /* Terminate buffer - useful for string data */
390 for (i=0; nscommands[i].cmdname !=NULL; i++) { 238 for (i = 0; nscommands[i].cmdname != NULL; i++)
239 {
391 if (strcmp((char*)ns->inbuf.buf+2,nscommands[i].cmdname)==0) { 240 if (strcmp ((char *) ns->inbuf.buf + 2, nscommands[i].cmdname) == 0)
241 {
392 nscommands[i].cmdproc((char*)data,len,ns); 242 nscommands[i].cmdproc ((char *) data, len, ns);
393 ns->inbuf.len=0; 243 ns->inbuf.len = 0;
394 return;//D// not doing this causes random memory corruption 244 return; //D// not doing this causes random memory corruption
395 goto next_packet; 245 goto next_packet;
396 } 246 }
397 } 247 }
398 /* Player must be in the playing state or the flag on the 248 /* Player must be in the playing state or the flag on the
399 * the command must be zero for the user to use the command - 249 * the command must be zero for the user to use the command -
400 * otherwise, a player cam save, be in the play_again state, and 250 * otherwise, a player cam save, be in the play_again state, and
401 * the map they were on gets swapped out, yet things that try to look 251 * the map they were on gets swapped out, yet things that try to look
402 * at the map causes a crash. If the command is valid, but 252 * at the map causes a crash. If the command is valid, but
403 * one they can't use, we still swallow it up. 253 * one they can't use, we still swallow it up.
404 */ 254 */
255 if (pl)
405 if (pl) for (i=0; plcommands[i].cmdname !=NULL; i++) { 256 for (i = 0; plcommands[i].cmdname != NULL; i++)
257 {
406 if (strcmp((char*)ns->inbuf.buf+2,plcommands[i].cmdname)==0) { 258 if (strcmp ((char *) ns->inbuf.buf + 2, plcommands[i].cmdname) == 0)
259 {
407 if (pl->state == ST_PLAYING || !(plcommands[i].flag & 1)) 260 if (pl->state == ST_PLAYING || !(plcommands[i].flag & 1))
408 plcommands[i].cmdproc((char*)data,len,pl); 261 plcommands[i].cmdproc ((char *) data, len, pl);
409 ns->inbuf.len=0; 262 ns->inbuf.len = 0;
410 //D// not doing this causes random memory corruption 263 //D// not doing this causes random memory corruption
411 if (plcommands[i].flag & 2) 264 if (plcommands[i].flag & 2)
412 goto next_packet; 265 goto next_packet;
413 return; 266 return;
414 } 267 }
415 } 268 }
416 /* If we get here, we didn't find a valid command. Logging 269 /* If we get here, we didn't find a valid command. Logging
417 * this might be questionable, because a broken client/malicious 270 * this might be questionable, because a broken client/malicious
418 * user could certainly send a whole bunch of invalid commands. 271 * user could certainly send a whole bunch of invalid commands.
419 */ 272 */
420 LOG(llevDebug,"Bad command from client (%s)\n",ns->inbuf.buf+2); 273 LOG (llevDebug, "Bad command from client (%s)\n", ns->inbuf.buf + 2);
421 next_packet: 274 next_packet:
422 ; 275 ;
423 } 276 }
424} 277}
425 278
426 279
427/***************************************************************************** 280/*****************************************************************************
… …
430 * sending. 283 * sending.
431 * 284 *
432 ******************************************************************************/ 285 ******************************************************************************/
433 286
434#ifdef WATCHDOG 287#ifdef WATCHDOG
288
435/** 289/**
436 * Tell watchdog that we are still alive 290 * Tell watchdog that we are still alive
437 * 291 *
438 * I put the function here since we should hopefully already be getting 292 * I put the function here since we should hopefully already be getting
439 * all the needed include files for socket support 293 * all the needed include files for socket support
440 */ 294 */
441 295
296void
442void watchdog(void) 297watchdog (void)
443{ 298{
444 static int fd=-1; 299 static int fd = -1;
445 static struct sockaddr_in insock; 300 static struct sockaddr_in insock;
446 301
447 if (fd==-1) 302 if (fd == -1)
448 { 303 {
449 struct protoent *protoent; 304 struct protoent *protoent;
450 305
451 if ((protoent=getprotobyname("udp"))==NULL || 306 if ((protoent = getprotobyname ("udp")) == NULL || (fd = socket (PF_INET, SOCK_DGRAM, protoent->p_proto)) == -1)
452 (fd=socket(PF_INET, SOCK_DGRAM, protoent->p_proto))==-1)
453 { 307 {
454 return; 308 return;
455 } 309 }
456 insock.sin_family=AF_INET; 310 insock.sin_family = AF_INET;
457 insock.sin_port=htons((unsigned short)13325); 311 insock.sin_port = htons ((unsigned short) 13325);
458 insock.sin_addr.s_addr=inet_addr("127.0.0.1"); 312 insock.sin_addr.s_addr = inet_addr ("127.0.0.1");
459 } 313 }
460 sendto(fd,(void *)&fd,1,0,(struct sockaddr *)&insock,sizeof(insock)); 314 sendto (fd, (void *) &fd, 1, 0, (struct sockaddr *) &insock, sizeof (insock));
461} 315}
462#endif 316#endif
463 317
464extern unsigned long todtick; 318void
465
466/** Waits for new connection */
467static void block_until_new_connection(void)
468{
469
470 struct timeval Timeout;
471 fd_set readfs;
472 int cycles;
473
474 LOG(llevInfo, "Waiting for connections...\n");
475
476 cycles=1;
477 do {
478 /* Every minutes is a bit often for updates - especially if nothing is going
479 * on. This slows it down to every 6 minutes.
480 */
481 cycles++;
482 if (cycles%2 == 0)
483 tick_the_clock();
484
485 FD_ZERO(&readfs);
486 FD_SET((uint32)init_sockets[0].fd, &readfs);
487
488 /* If fastclock is set, we need to seriously slow down the updates
489 * to the metaserver as well as watchdog. Do same for flush_old_maps() -
490 * that is time sensitive, so there is no good reason to call it 2000 times
491 * a second.
492 */
493 if (settings.fastclock > 0) {
494#ifdef WATCHDOG
495 if (cycles % 120000 == 0) {
496 watchdog();
497 flush_old_maps();
498 }
499#endif
500 if (cycles == 720000) {
501 metaserver_update();
502 cycles=1;
503 }
504 Timeout.tv_sec=0;
505 Timeout.tv_usec=50;
506 } else {
507 Timeout.tv_sec=60;
508 Timeout.tv_usec=0;
509 if (cycles == 7) {
510 metaserver_update();
511 cycles=1;
512 }
513 flush_old_maps();
514 }
515 }
516 while (select(socket_info.max_filedescriptor, &readfs, NULL, NULL, &Timeout)==0);
517
518 reset_sleep(); /* Or the game would go too fast */
519}
520
521void flush_sockets(void) 319flush_sockets (void)
522{ 320{
523 player *pl; 321 player *pl;
524 322
525 for (pl = first_player; pl != NULL; pl = pl->next) 323 for (pl = first_player; pl != NULL; pl = pl->next)
526 if (pl->socket.status != Ns_Dead) 324 if (pl->socket.status != Ns_Dead)
… …
532 * 330 *
533 * A bit of this code is grabbed out of socket.c 331 * A bit of this code is grabbed out of socket.c
534 * There are 2 lists we need to look through - init_sockets is a list 332 * There are 2 lists we need to look through - init_sockets is a list
535 * 333 *
536 */ 334 */
335void
537void doeric_server(void) 336doeric_server (void)
538{ 337{
539 int i, pollret; 338 int i, pollret;
540 fd_set tmp_read, tmp_exceptions, tmp_write; 339 fd_set tmp_read, tmp_exceptions, tmp_write;
541 struct sockaddr_in addr; 340 struct sockaddr_in addr;
542 socklen_t addrlen=sizeof(struct sockaddr); 341 socklen_t addrlen = sizeof (struct sockaddr);
543 player *pl, *next; 342 player *pl, *next;
544 343
545#ifdef CS_LOGSTATS 344#ifdef CS_LOGSTATS
546 if ((time(NULL)-cst_lst.time_start)>=CS_LOGTIME) 345 if ((time (NULL) - cst_lst.time_start) >= CS_LOGTIME)
547 write_cs_stats(); 346 write_cs_stats ();
548#endif 347#endif
549 348
550 FD_ZERO(&tmp_read); 349 FD_ZERO (&tmp_read);
551 FD_ZERO(&tmp_write); 350 FD_ZERO (&tmp_write);
552 FD_ZERO(&tmp_exceptions); 351 FD_ZERO (&tmp_exceptions);
553 352
554 for(i=0;i<socket_info.allocated_sockets;i++) { 353 for (i = 0; i < socket_info.allocated_sockets; i++)
354 {
555 if (init_sockets[i].status == Ns_Dead) { 355 if (init_sockets[i].status == Ns_Dead)
356 {
556 free_newsocket(&init_sockets[i]); 357 free_newsocket (&init_sockets[i]);
557 init_sockets[i].status = Ns_Avail; 358 init_sockets[i].status = Ns_Avail;
558 socket_info.nconns--; 359 socket_info.nconns--;
360 }
559 } else if (init_sockets[i].status != Ns_Avail){ 361 else if (init_sockets[i].status != Ns_Avail)
362 {
560 FD_SET((uint32)init_sockets[i].fd, &tmp_read); 363 FD_SET ((uint32) init_sockets[i].fd, &tmp_read);
561 FD_SET((uint32)init_sockets[i].fd, &tmp_write); 364 FD_SET ((uint32) init_sockets[i].fd, &tmp_write);
562 FD_SET((uint32)init_sockets[i].fd, &tmp_exceptions); 365 FD_SET ((uint32) init_sockets[i].fd, &tmp_exceptions);
563 } 366 }
564 } 367 }
565 368
566 /* Go through the players. Let the loop set the next pl value, 369 /* Go through the players. Let the loop set the next pl value,
567 * since we may remove some 370 * since we may remove some
568 */ 371 */
569 for (pl=first_player; pl!=NULL; ) { 372 for (pl = first_player; pl != NULL;)
373 {
570 if (pl->socket.status == Ns_Dead) { 374 if (pl->socket.status == Ns_Dead)
375 {
571 player *npl=pl->next; 376 player *npl = pl->next;
572 377
573 save_player(pl->ob, 0); 378 save_player (pl->ob, 0);
574 if(!QUERY_FLAG(pl->ob,FLAG_REMOVED)) { 379 if (!QUERY_FLAG (pl->ob, FLAG_REMOVED))
380 {
575 terminate_all_pets(pl->ob); 381 terminate_all_pets (pl->ob);
576 remove_ob(pl->ob); 382 pl->ob->remove ();
577 } 383 }
578 leave(pl,1); 384 leave (pl, 1);
579 final_free_player(pl); 385 final_free_player (pl);
580 pl=npl; 386 pl = npl;
581 } 387 }
582 else { 388 else
389 {
583 FD_SET((uint32)pl->socket.fd, &tmp_read); 390 FD_SET ((uint32) pl->socket.fd, &tmp_read);
584 FD_SET((uint32)pl->socket.fd, &tmp_write); 391 FD_SET ((uint32) pl->socket.fd, &tmp_write);
585 FD_SET((uint32)pl->socket.fd, &tmp_exceptions); 392 FD_SET ((uint32) pl->socket.fd, &tmp_exceptions);
586 pl=pl->next; 393 pl = pl->next;
587 } 394 }
395 }
396
397 /* Reset timeout each time, since some OS's will change the values on
398 * the return from select.
399 */
400 socket_info.timeout.tv_sec = 0;
401 socket_info.timeout.tv_usec = 0;
402
403 pollret = select (socket_info.max_filedescriptor, &tmp_read, &tmp_write, &tmp_exceptions, &socket_info.timeout);
404
405 if (pollret == -1)
406 {
407 LOG (llevError, "select failed: %s\n", strerror (errno));
408 return;
409 }
410
411 /* We need to do some of the processing below regardless */
412
413/* if (!pollret) return;*/
414
415 /* Following adds a new connection */
416 if (pollret && FD_ISSET (init_sockets[0].fd, &tmp_read))
417 {
418 int newsocknum = 0;
419
420#ifdef ESRV_DEBUG
421 LOG (llevDebug, "doeric_server: New Connection\n");
422#endif
423 /* If this is the case, all sockets currently in used */
424 if (socket_info.allocated_sockets <= socket_info.nconns)
425 {
426 init_sockets = (NewSocket *) realloc (init_sockets, sizeof (NewSocket) * (socket_info.nconns + 1));
427 if (!init_sockets)
428 fatal (OUT_OF_MEMORY);
429 newsocknum = socket_info.allocated_sockets;
430 socket_info.allocated_sockets++;
431 init_sockets[newsocknum].faces_sent_len = nrofpixmaps;
432 init_sockets[newsocknum].faces_sent = (uint8 *) malloc (nrofpixmaps * sizeof (*init_sockets[newsocknum].faces_sent));
433 if (!init_sockets[newsocknum].faces_sent)
434 fatal (OUT_OF_MEMORY);
435 init_sockets[newsocknum].status = Ns_Avail;
436 }
437 else
438 {
439 int j;
440
441 for (j = 1; j < socket_info.allocated_sockets; j++)
442 if (init_sockets[j].status == Ns_Avail)
443 {
444 newsocknum = j;
445 break;
446 }
447 }
448 init_sockets[newsocknum].fd = accept (init_sockets[0].fd, (struct sockaddr *) &addr, &addrlen);
449 if (init_sockets[newsocknum].fd == -1)
450 {
451 LOG (llevError, "accept failed: %s\n", strerror (errno));
452 }
453 else
454 {
455 char buf[MAX_BUF];
456 long ip;
457 NewSocket *ns;
458
459 ns = &init_sockets[newsocknum];
460
461 ip = ntohl (addr.sin_addr.s_addr);
462 sprintf (buf, "%ld.%ld.%ld.%ld", (ip >> 24) & 255, (ip >> 16) & 255, (ip >> 8) & 255, ip & 255);
463
464 if (checkbanned (NULL, buf))
465 {
466 LOG (llevInfo, "Banned host tried to connect: [%s]\n", buf);
467 close (init_sockets[newsocknum].fd);
468 init_sockets[newsocknum].fd = -1;
469 }
470 else
471 {
472 InitConnection (ns, buf);
473 socket_info.nconns++;
474 }
475 }
476 }
477
478 /* Check for any exceptions/input on the sockets */
479 if (pollret)
480 for (i = 1; i < socket_info.allocated_sockets; i++)
481 {
482 if (init_sockets[i].status == Ns_Avail)
483 continue;
484 if (FD_ISSET (init_sockets[i].fd, &tmp_exceptions))
485 {
486 free_newsocket (&init_sockets[i]);
487 init_sockets[i].status = Ns_Avail;
488 socket_info.nconns--;
489 continue;
490 }
491 if (FD_ISSET (init_sockets[i].fd, &tmp_read))
492 {
493 HandleClient (&init_sockets[i], NULL);
494 }
495 if (FD_ISSET (init_sockets[i].fd, &tmp_write))
496 {
497 init_sockets[i].can_write = 1;
498 }
588 } 499 }
589 500
501 /* This does roughly the same thing, but for the players now */
502 for (pl = first_player; pl != NULL; pl = next)
503 {
504
505 next = pl->next;
506 if (pl->socket.status == Ns_Dead)
507 continue;
508
509 if (FD_ISSET (pl->socket.fd, &tmp_write))
510 {
511 if (!pl->socket.can_write)
512 {
590#if 0 513#if 0
591 // the event system and plugins require the server ti run at all times.
592 // since its primarily cf.schmorp.de we are interested in, and
593 // that is supposed to run all the time anyway, its globally disabled
594 // until we can use Event.
595 if (socket_info.nconns==1 && first_player==NULL)
596 block_until_new_connection();
597#endif
598
599 /* Reset timeout each time, since some OS's will change the values on
600 * the return from select.
601 */
602 socket_info.timeout.tv_sec = 0;
603 socket_info.timeout.tv_usec = 0;
604
605 pollret= select(socket_info.max_filedescriptor, &tmp_read, &tmp_write,
606 &tmp_exceptions, &socket_info.timeout);
607
608 if (pollret==-1) {
609 LOG(llevError, "select failed: %s\n", strerror_local(errno));
610 return;
611 }
612
613 /* We need to do some of the processing below regardless */
614/* if (!pollret) return;*/
615
616 /* Following adds a new connection */
617 if (pollret && FD_ISSET(init_sockets[0].fd, &tmp_read)) {
618 int newsocknum=0;
619
620#ifdef ESRV_DEBUG
621 LOG(llevDebug,"doeric_server: New Connection\n");
622#endif
623 /* If this is the case, all sockets currently in used */
624 if (socket_info.allocated_sockets <= socket_info.nconns) {
625 init_sockets = (NewSocket *) realloc(init_sockets,sizeof(NewSocket)*(socket_info.nconns+1));
626 if (!init_sockets) fatal(OUT_OF_MEMORY);
627 newsocknum = socket_info.allocated_sockets;
628 socket_info.allocated_sockets++;
629 init_sockets[newsocknum].faces_sent_len = nrofpixmaps;
630 init_sockets[newsocknum].faces_sent = (uint8*) malloc(nrofpixmaps*sizeof(*init_sockets[newsocknum].faces_sent));
631 if (!init_sockets[newsocknum].faces_sent) fatal(OUT_OF_MEMORY);
632 init_sockets[newsocknum].status = Ns_Avail;
633 }
634 else {
635 int j;
636
637 for (j=1; j<socket_info.allocated_sockets; j++)
638 if (init_sockets[j].status == Ns_Avail) {
639 newsocknum=j;
640 break;
641 }
642 }
643 init_sockets[newsocknum].fd=accept(init_sockets[0].fd, (struct sockaddr *)&addr, &addrlen);
644 if (init_sockets[newsocknum].fd==-1) {
645 LOG(llevError, "accept failed: %s\n", strerror_local(errno));
646 }
647 else {
648 char buf[MAX_BUF];
649 long ip;
650 NewSocket *ns;
651
652 ns = &init_sockets[newsocknum];
653
654 ip = ntohl(addr.sin_addr.s_addr);
655 sprintf(buf, "%ld.%ld.%ld.%ld", (ip>>24)&255, (ip>>16)&255, (ip>>8)&255, ip&255);
656
657 if (checkbanned(NULL, buf)) {
658 LOG(llevInfo, "Banned host tried to connect: [%s]\n", buf);
659 close(init_sockets[newsocknum].fd);
660 init_sockets[newsocknum].fd = -1;
661 }
662 else {
663 InitConnection(ns, buf);
664 socket_info.nconns++;
665 }
666 }
667 }
668
669 /* Check for any exceptions/input on the sockets */
670 if (pollret) for(i=1;i<socket_info.allocated_sockets;i++) {
671 if (init_sockets[i].status == Ns_Avail) continue;
672 if (FD_ISSET(init_sockets[i].fd,&tmp_exceptions)) {
673 free_newsocket(&init_sockets[i]);
674 init_sockets[i].status = Ns_Avail;
675 socket_info.nconns--;
676 continue;
677 }
678 if (FD_ISSET(init_sockets[i].fd, &tmp_read)) {
679 HandleClient(&init_sockets[i], NULL);
680 }
681 if (FD_ISSET(init_sockets[i].fd, &tmp_write)) {
682 init_sockets[i].can_write=1;
683 }
684 }
685
686 /* This does roughly the same thing, but for the players now */
687 for (pl=first_player; pl!=NULL; pl=next) {
688
689 next=pl->next;
690 if (pl->socket.status==Ns_Dead) continue;
691
692 if (FD_ISSET(pl->socket.fd,&tmp_write)) {
693 if (!pl->socket.can_write) {
694#if 0
695 LOG(llevDebug,"Player %s socket now write enabled\n", pl->ob->name); 514 LOG (llevDebug, "Player %s socket now write enabled\n", pl->ob->name);
696#endif 515#endif
697 pl->socket.can_write=1; 516 pl->socket.can_write = 1;
698 write_socket_buffer(&pl->socket); 517 write_socket_buffer (&pl->socket);
699 } 518 }
700 /* if we get an error on the write_socket buffer, no reason to 519 /* if we get an error on the write_socket buffer, no reason to
701 * continue on this socket. 520 * continue on this socket.
702 */ 521 */
703 if (pl->socket.status==Ns_Dead) continue; 522 if (pl->socket.status == Ns_Dead)
704 } 523 continue;
524 }
525 else
705 else pl->socket.can_write=0; 526 pl->socket.can_write = 0;
706 527
707 if (FD_ISSET(pl->socket.fd,&tmp_exceptions)) { 528 if (FD_ISSET (pl->socket.fd, &tmp_exceptions))
529 {
708 save_player(pl->ob, 0); 530 save_player (pl->ob, 0);
709 if(!QUERY_FLAG(pl->ob,FLAG_REMOVED)) { 531 if (!QUERY_FLAG (pl->ob, FLAG_REMOVED))
532 {
710 terminate_all_pets(pl->ob); 533 terminate_all_pets (pl->ob);
711 remove_ob(pl->ob); 534 pl->ob->remove ();
712 } 535 }
713 leave(pl,1); 536 leave (pl, 1);
714 final_free_player(pl); 537 final_free_player (pl);
715 } 538 }
716 else { 539 else
540 {
717 HandleClient(&pl->socket, pl); 541 HandleClient (&pl->socket, pl);
718 /* If the player has left the game, then the socket status 542 /* If the player has left the game, then the socket status
719 * will be set to this be the leave function. We don't 543 * will be set to this be the leave function. We don't
720 * need to call leave again, as it has already been called 544 * need to call leave again, as it has already been called
721 * once. 545 * once.
722 */ 546 */
723 if (pl->socket.status==Ns_Dead) { 547 if (pl->socket.status == Ns_Dead)
724 save_player(pl->ob, 0); 548 {
549 save_player (pl->ob, 0);
725 if(!QUERY_FLAG(pl->ob,FLAG_REMOVED)) { 550 if (!QUERY_FLAG (pl->ob, FLAG_REMOVED))
551 {
726 terminate_all_pets(pl->ob); 552 terminate_all_pets (pl->ob);
727 remove_ob(pl->ob); 553 pl->ob->remove ();
728 } 554 }
729 leave(pl,1); 555 leave (pl, 1);
730 final_free_player(pl); 556 final_free_player (pl);
731 } else { 557 }
558 else
559 {
732 560
733 /* Update the players stats once per tick. More efficient than 561 /* Update the players stats once per tick. More efficient than
734 * sending them whenever they change, and probably just as useful 562 * sending them whenever they change, and probably just as useful
735 */ 563 */
736 esrv_update_stats(pl); 564 esrv_update_stats (pl);
737 if (pl->last_weight != -1 && pl->last_weight != WEIGHT(pl->ob)) { 565 if (pl->last_weight != -1 && pl->last_weight != WEIGHT (pl->ob))
566 {
738 esrv_update_item(UPD_WEIGHT, pl->ob, pl->ob); 567 esrv_update_item (UPD_WEIGHT, pl->ob, pl->ob);
739 if(pl->last_weight != WEIGHT(pl->ob)) 568 if (pl->last_weight != WEIGHT (pl->ob))
740 LOG(llevError, "esrv_update_item(UPD_WEIGHT) did not set player weight: is %lu, should be %lu\n", (unsigned long)pl->last_weight, WEIGHT(pl->ob)); 569 LOG (llevError, "esrv_update_item(UPD_WEIGHT) did not set player weight: is %lu, should be %lu\n",
741 } 570 (unsigned long) pl->last_weight, WEIGHT (pl->ob));
571 }
742 /* draw_client_map does sanity checking that map is 572 /* draw_client_map does sanity checking that map is
743 * valid, so don't do it here. 573 * valid, so don't do it here.
744 */ 574 */
745 draw_client_map(pl->ob); 575 draw_client_map (pl->ob);
746 if (pl->socket.update_look) esrv_draw_look(pl->ob); 576 if (pl->socket.update_look)
747 } 577 esrv_draw_look (pl->ob);
748 } 578 }
579 }
749 } 580 }
750} 581}

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