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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.3 by root, Fri Aug 18 02:06:58 2006 UTC vs.
Revision 1.10 by pippijn, Mon Dec 11 19:46:47 2006 UTC

1/*
2 * static char *rcsid_init_c =
3 * "$Id: init.C,v 1.3 2006/08/18 02:06:58 root Exp $";
4 */
5
6/* 1/*
7 CrossFire, A Multiplayer game for X-windows 2 CrossFire, A Multiplayer game for X-windows
8 3
9 Copyright (C) 2001 Mark Wedel 4 Copyright (C) 2001 Mark Wedel
10 Copyright (C) 1992 Frank Tore Johansen 5 Copyright (C) 1992 Frank Tore Johansen
… …
21 16
22 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
23 along with this program; if not, write to the Free Software 18 along with this program; if not, write to the Free Software
24 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 20
26 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>
27*/ 22*/
28 23
29/** 24/**
30 * \file 25 * \file
31 * Socket general functions 26 * Socket general functions
… …
38 */ 33 */
39 34
40 35
41#include <global.h> 36#include <global.h>
42#ifndef __CEXTRACT__ 37#ifndef __CEXTRACT__
43#include <sproto.h> 38# include <sproto.h>
44#endif 39#endif
45#ifndef WIN32 /* ---win32 exclude include files */
46#include <sys/types.h> 40#include <sys/types.h>
47#include <sys/time.h> 41#include <sys/time.h>
48#include <sys/socket.h> 42#include <sys/socket.h>
49#include <netinet/in.h> 43#include <netinet/in.h>
50#include <netdb.h> 44#include <netdb.h>
51#endif /* win32 */
52 45
53#ifdef HAVE_UNISTD_H 46#ifdef HAVE_UNISTD_H
54#include <unistd.h> 47# include <unistd.h>
55#endif 48#endif
56 49
57#ifdef HAVE_ARPA_INET_H 50#ifdef HAVE_ARPA_INET_H
58#include <arpa/inet.h> 51# include <arpa/inet.h>
59#endif 52#endif
60#include <newserver.h> 53#include <newserver.h>
61 54
62Socket_Info socket_info; 55Socket_Info socket_info;
63NewSocket *init_sockets; 56NewSocket *init_sockets;
… …
65/** 58/**
66 * Initializes a connection. Really, it just sets up the data structure, 59 * Initializes a connection. Really, it just sets up the data structure,
67 * socket setup is handled elsewhere. We do send a version to the 60 * socket setup is handled elsewhere. We do send a version to the
68 * client. 61 * client.
69 */ 62 */
63void
70void InitConnection(NewSocket *ns, const char *from_ip) 64InitConnection (NewSocket * ns, const char *from_ip)
71{ 65{
72 SockList sl; 66 SockList sl;
73 char buf[256]; 67 char buf[256];
74 int bufsize=65535; /*Supposed absolute upper limit */ 68 int bufsize = 65535; /*Supposed absolute upper limit */
75 int oldbufsize; 69 int oldbufsize;
76 int buflen=sizeof(int); 70 int buflen = sizeof (int);
77 71
78#ifdef WIN32 /* ***WIN32 SOCKET: init win32 non blocking socket */
79 int temp = 1;
80
81 if(ioctlsocket(ns->fd, FIONBIO , &temp) == -1)
82 LOG(llevError,"InitConnection: Error on ioctlsocket.\n");
83#else
84 if (fcntl(ns->fd, F_SETFL, O_NONBLOCK)==-1) { 72 if (fcntl (ns->fd, F_SETFL, O_NONBLOCK) == -1)
73 {
85 LOG(llevError,"InitConnection: Error on fcntl.\n"); 74 LOG (llevError, "InitConnection: Error on fcntl.\n");
86 } 75 }
87#endif /* end win32 */
88 76
89 if (getsockopt(ns->fd,SOL_SOCKET,SO_SNDBUF, (char*)&oldbufsize, (socklen_t*) &buflen)==-1) 77 if (getsockopt (ns->fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen) == -1)
90 oldbufsize=0; 78 oldbufsize = 0;
91 if (oldbufsize<bufsize) { 79 if (oldbufsize < bufsize)
80 {
92#ifdef ESRV_DEBUG 81#ifdef ESRV_DEBUG
93 LOG(llevDebug, "Default buffer size was %d bytes, will reset it to %d\n", oldbufsize, bufsize); 82 LOG (llevDebug, "Default buffer size was %d bytes, will reset it to %d\n", oldbufsize, bufsize);
94#endif 83#endif
95 if(setsockopt(ns->fd,SOL_SOCKET,SO_SNDBUF, (char*)&bufsize, sizeof(&bufsize))) { 84 if (setsockopt (ns->fd, SOL_SOCKET, SO_SNDBUF, (char *) &bufsize, sizeof (&bufsize)))
85 {
96 LOG(llevError,"InitConnection: setsockopt unable to set output buf size to %d\n", bufsize); 86 LOG (llevError, "InitConnection: setsockopt unable to set output buf size to %d\n", bufsize);
97 } 87 }
98 } 88 }
99 buflen=sizeof(oldbufsize); 89 buflen = sizeof (oldbufsize);
100 getsockopt(ns->fd,SOL_SOCKET,SO_SNDBUF, (char*)&oldbufsize, (socklen_t*) &buflen); 90 getsockopt (ns->fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen);
101#ifdef ESRV_DEBUG 91#ifdef ESRV_DEBUG
102 LOG(llevDebug, "Socket buffer size now %d bytes\n", oldbufsize); 92 LOG (llevDebug, "Socket buffer size now %d bytes\n", oldbufsize);
103#endif 93#endif
104 94
105 ns->faceset = 0; 95 ns->faceset = 0;
106 ns->facecache = 0; 96 ns->facecache = 0;
107 ns->image2 = 0; 97 ns->image2 = 0;
108 ns->sound = 0; 98 ns->sound = 0;
109 ns->exp64 = 0; 99 ns->exp64 = 0;
110 ns->monitor_spells = 0; 100 ns->monitor_spells = 0;
111 ns->mapmode = Map0Cmd; 101 ns->mapmode = Map0Cmd;
112 ns->darkness = 1; 102 ns->darkness = 1;
113 ns->status = Ns_Add; 103 ns->status = Ns_Add;
114 ns->comment = NULL;
115 ns->old_mode = (Old_Mode) 0;
116 ns->mapx = 11; 104 ns->mapx = 11;
117 ns->mapy = 11; 105 ns->mapy = 11;
118 ns->newmapcmd= 0; 106 ns->newmapcmd = 0;
119 ns->itemcmd = 1; /* Default is version item1 command*/ 107 ns->itemcmd = 1; /* Default is version item1 command */
120 ns->ext_mapinfos=0; /*extendedmapinfo datas*/ 108 ns->ext_mapinfos = 0; /*extendedmapinfo datas */
121 ns->EMI_smooth=0; 109 ns->EMI_smooth = 0;
122 ns->look_position = 0; 110 ns->look_position = 0;
123 ns->update_look = 0; 111 ns->update_look = 0;
124 ns->has_readable_type = 0; 112 ns->has_readable_type = 0;
125 ns->supported_readables = 0; 113 ns->supported_readables = 0;
126 ns->monitor_spells = 0; 114 ns->monitor_spells = 0;
127 ns->mapinfocmd = 0; 115 ns->mapinfocmd = 0;
128 ns->extcmd = 0; 116 ns->extcmd = 0;
129 ns->extmap = 0; 117 ns->extmap = 0;
130 118
131 /* we should really do some checking here - if total clients overflows 119 /* we should really do some checking here - if total clients overflows
132 * we need to do something more intelligent, because client id's will start 120 * we need to do something more intelligent, because client id's will start
133 * duplicating (not likely in normal cases, but malicous attacks that 121 * duplicating (not likely in normal cases, but malicous attacks that
134 * just open and close connections could get this total up. 122 * just open and close connections could get this total up.
135 */ 123 */
136 ns->inbuf.len=0; 124 ns->inbuf.len = 0;
137 ns->inbuf.buf= (unsigned char*) malloc( sizeof( unsigned char ) * MAXSOCKBUF ); 125 ns->inbuf.buf = (unsigned char *) malloc (sizeof (unsigned char) * MAXSOCKBUF);
138 /* Basic initialization. Needed because we do a check in 126 /* Basic initialization. Needed because we do a check in
139 * HandleClient for oldsocketmode without checking the 127 * HandleClient for oldsocketmode without checking the
140 * length of data. 128 * length of data.
141 */ 129 */
142 memset( ns->inbuf.buf, 0, sizeof( unsigned char ) * MAXSOCKBUF ); 130 memset (ns->inbuf.buf, 0, sizeof (unsigned char) * MAXSOCKBUF);
143 memset(&ns->lastmap,0,sizeof(struct Map)); 131 memset (&ns->lastmap, 0, sizeof (struct Map));
144 memset(ns->faces_sent, 0, ns->faces_sent_len*sizeof(*ns->faces_sent)); 132 memset (ns->faces_sent, 0, ns->faces_sent_len * sizeof (*ns->faces_sent));
145 memset(&ns->anims_sent,0,sizeof(ns->anims_sent)); 133 memset (&ns->anims_sent, 0, sizeof (ns->anims_sent));
146 memset(&ns->stats,0,sizeof(struct statsinfo)); 134 memset (&ns->stats, 0, sizeof (struct statsinfo));
147 /* Do this so we don't send a face command for the client for 135 /* Do this so we don't send a face command for the client for
148 * this face. Face 0 is sent to the client to say clear 136 * this face. Face 0 is sent to the client to say clear
149 * face information. 137 * face information.
150 */ 138 */
151 ns->faces_sent[0] = NS_FACESENT_FACE; 139 ns->faces_sent[0] = NS_FACESENT_FACE;
152 140
153 ns->outputbuffer.start=0; 141 ns->outputbuffer.start = 0;
154 ns->outputbuffer.len=0; 142 ns->outputbuffer.len = 0;
155 ns->can_write=1; 143 ns->can_write = 1;
156 ns->password_fails = 0; 144 ns->password_fails = 0;
157 145
158 ns->current_map = 0; 146 ns->current_map = 0;
159 ns->current_x = 0; 147 ns->current_x = 0;
160 ns->current_y = 0; 148 ns->current_y = 0;
149 ns->client[0] = 0;
150 ns->buggy_mapscroll = 0;
161 151
162 ns->sent_scroll=0; 152 ns->sent_scroll = 0;
163 ns->host=strdup_local(from_ip); 153 ns->host = strdup_local (from_ip);
164 sprintf((char*)buf, "version %d %d %s\n", VERSION_CS,VERSION_SC, VERSION_INFO); 154 sprintf ((char *) buf, "version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
165 sl.buf=(unsigned char*)buf; 155 sl.buf = (unsigned char *) buf;
166 sl.len=strlen((char*)buf); 156 sl.len = strlen ((char *) buf);
167 Send_With_Handling(ns, &sl); 157 Send_With_Handling (ns, &sl);
168#ifdef CS_LOGSTATS 158#ifdef CS_LOGSTATS
169 if (socket_info.nconns>cst_tot.max_conn) 159 if (socket_info.nconns > cst_tot.max_conn)
170 cst_tot.max_conn = socket_info.nconns; 160 cst_tot.max_conn = socket_info.nconns;
171 if (socket_info.nconns>cst_lst.max_conn) 161 if (socket_info.nconns > cst_lst.max_conn)
172 cst_lst.max_conn = socket_info.nconns; 162 cst_lst.max_conn = socket_info.nconns;
173#endif 163#endif
174} 164}
175 165
176 166
177/** This sets up the socket and reads all the image information into memory. */ 167/** This sets up the socket and reads all the image information into memory. */
168void
178void init_ericserver(void) 169init_ericserver (void)
179{ 170{
180 struct sockaddr_in insock; 171 struct sockaddr_in insock;
181 struct protoent *protox; 172 struct protoent *protox;
182 struct linger linger_opt; 173 struct linger linger_opt;
183
184#ifdef WIN32 /* ***win32 - we init a windows socket */
185 WSADATA w;
186
187 socket_info.max_filedescriptor = 1; /* used in select, ignored in winsockets */
188 WSAStartup (0x0101,&w); /* this setup all socket stuff */
189 /* ill include no error tests here, winsocket 1.1 should always work */
190 /* except some old win95 versions without tcp/ip stack */
191#else /* non windows */
192 174
193#ifdef HAVE_SYSCONF 175#ifdef HAVE_SYSCONF
194 socket_info.max_filedescriptor = sysconf(_SC_OPEN_MAX); 176 socket_info.max_filedescriptor = sysconf (_SC_OPEN_MAX);
195#else 177#else
196# ifdef HAVE_GETDTABLESIZE 178# ifdef HAVE_GETDTABLESIZE
197 socket_info.max_filedescriptor = getdtablesize(); 179 socket_info.max_filedescriptor = getdtablesize ();
198# else 180# else
199 "Unable to find usable function to get max filedescriptors"; 181 "Unable to find usable function to get max filedescriptors";
200# endif 182# endif
201#endif 183#endif
202#endif /* win32 */
203 184
204 socket_info.timeout.tv_sec = 0; 185 socket_info.timeout.tv_sec = 0;
205 socket_info.timeout.tv_usec = 0; 186 socket_info.timeout.tv_usec = 0;
206 socket_info.nconns=0; 187 socket_info.nconns = 0;
207 188
208#ifdef CS_LOGSTATS 189#ifdef CS_LOGSTATS
209 memset(&cst_tot, 0, sizeof(CS_Stats)); 190 memset (&cst_tot, 0, sizeof (CS_Stats));
210 memset(&cst_lst, 0, sizeof(CS_Stats)); 191 memset (&cst_lst, 0, sizeof (CS_Stats));
211 cst_tot.time_start=time(NULL); 192 cst_tot.time_start = time (NULL);
212 cst_lst.time_start=time(NULL); 193 cst_lst.time_start = time (NULL);
213#endif 194#endif
214 195
215 LOG(llevDebug,"Initialize new client/server data\n"); 196 LOG (llevDebug, "Initialize new client/server data\n");
216 socket_info.nconns = 1; 197 socket_info.nconns = 1;
217 init_sockets = (NewSocket *) malloc(sizeof(NewSocket)); 198 init_sockets = (NewSocket *) malloc (sizeof (NewSocket));
218 init_sockets[0].faces_sent = NULL; /* unused */ 199 init_sockets[0].faces_sent = NULL; /* unused */
219 socket_info.allocated_sockets=1; 200 socket_info.allocated_sockets = 1;
220 201
221 protox = getprotobyname("tcp"); 202 protox = getprotobyname ("tcp");
222 if (protox==NULL) { 203 if (protox == NULL)
204 {
223 LOG(llevError,"init_ericserver: Error getting protox\n"); 205 LOG (llevError, "init_ericserver: Error getting protox\n");
224 return; 206 return;
225 } 207 }
226 init_sockets[0].fd = socket(PF_INET, SOCK_STREAM, protox->p_proto); 208 init_sockets[0].fd = socket (PF_INET, SOCK_STREAM, protox->p_proto);
227 if (init_sockets[0].fd == -1) { 209 if (init_sockets[0].fd == -1)
210 {
228 LOG(llevError, "Cannot create socket: %s\n", strerror_local(errno)); 211 LOG (llevError, "Cannot create socket: %s\n", strerror (errno));
229 exit(-1); 212 exit (-1);
230 } 213 }
231 insock.sin_family = AF_INET; 214 insock.sin_family = AF_INET;
232 insock.sin_port = htons(settings.csport); 215 insock.sin_port = htons (settings.csport);
233 insock.sin_addr.s_addr = htonl(INADDR_ANY); 216 insock.sin_addr.s_addr = htonl (INADDR_ANY);
234 217
235 linger_opt.l_onoff = 0; 218 linger_opt.l_onoff = 0;
236 linger_opt.l_linger = 0; 219 linger_opt.l_linger = 0;
237 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_LINGER,(char *) &linger_opt, 220 if (setsockopt (init_sockets[0].fd, SOL_SOCKET, SO_LINGER, (char *) &linger_opt, sizeof (struct linger)))
238 sizeof(struct linger))) { 221 {
239 LOG(llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror_local(errno)); 222 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno));
240 } 223 }
224
241/* Would be nice to have an autoconf check for this. It appears that 225/* Would be nice to have an autoconf check for this. It appears that
242 * these functions are both using the same calling syntax, just one 226 * these functions are both using the same calling syntax, just one
243 * of them needs extra valus passed. 227 * of them needs extra valus passed.
244 */ 228 */
245#if defined(__osf__) || defined(hpux) || defined(sgi) || defined(NeXT) || \ 229#if defined(__osf__) || defined(hpux) || defined(sgi) || defined(NeXT) || \
246 defined(__sun__) || defined(__linux__) || defined(SVR4) || \ 230 defined(__sun__) || defined(__linux__) || defined(SVR4) || \
247 defined(__FreeBSD__) || defined(__OpenBSD__) || \ 231 defined(__FreeBSD__) || defined(__OpenBSD__) || \
248 defined(WIN32) /* ---win32 add this here */ || \ 232 defined(WIN32) /* ---win32 add this here */ || \
249 defined(__GNU__) /* HURD */ 233 defined(__GNU__) /* HURD */
234 {
235 int tmp = 1;
236
237 if (setsockopt (init_sockets[0].fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof (tmp)))
250 { 238 {
251#ifdef WIN32 239 LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno));
252 char tmp = 1; 240 }
241 }
253#else 242#else
254 int tmp =1;
255#endif
256
257 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_REUSEADDR, &tmp, sizeof(tmp))) { 243 if (setsockopt (init_sockets[0].fd, SOL_SOCKET, SO_REUSEADDR, (char *) NULL, 0))
244 {
258 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(errno)); 245 LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno));
259 }
260 } 246 }
261#else
262 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_REUSEADDR,(char *)NULL,0)) {
263 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(errno));
264 }
265#endif 247#endif
266 248
267 if (bind(init_sockets[0].fd,(struct sockaddr *)&insock,sizeof(insock)) == (-1)) { 249 if (bind (init_sockets[0].fd, (struct sockaddr *) &insock, sizeof (insock)) == (-1))
250 {
268 LOG(llevError, "Cannot bind socket to port %d: %s\n", ntohs(insock.sin_port), strerror_local(errno)); 251 LOG (llevError, "Cannot bind socket to port %d: %s\n", ntohs (insock.sin_port), strerror (errno));
269#ifdef WIN32 /* ***win32: close() -> closesocket() */
270 shutdown(init_sockets[0].fd,SD_BOTH);
271 closesocket(init_sockets[0].fd);
272#else
273 close(init_sockets[0].fd); 252 close (init_sockets[0].fd);
274#endif /* win32 */ 253 exit (-1);
275 exit(-1);
276 } 254 }
277 if (listen(init_sockets[0].fd,5) == (-1)) { 255 if (listen (init_sockets[0].fd, 5) == (-1))
256 {
278 LOG(llevError, "Cannot listen on socket: %s\n", strerror_local(errno)); 257 LOG (llevError, "Cannot listen on socket: %s\n", strerror (errno));
279#ifdef WIN32 /* ***win32: close() -> closesocket() */
280 shutdown(init_sockets[0].fd,SD_BOTH);
281 closesocket(init_sockets[0].fd);
282#else
283 close(init_sockets[0].fd); 258 close (init_sockets[0].fd);
284#endif /* win32 */ 259 exit (-1);
285 exit(-1);
286 } 260 }
287 init_sockets[0].status=Ns_Add; 261 init_sockets[0].status = Ns_Add;
288 read_client_images(); 262 read_client_images ();
289} 263}
290 264
291 265
292/******************************************************************************* 266/*******************************************************************************
293 * 267 *
294 * Start of functions dealing with freeing of the data. 268 * Start of functions dealing with freeing of the data.
295 * 269 *
296 ******************************************************************************/ 270 ******************************************************************************/
297 271
298/** Free's all the memory that ericserver allocates. */ 272/** Free's all the memory that ericserver allocates. */
273void
299void free_all_newserver(void) 274free_all_newserver (void)
300{ 275{
301 LOG(llevDebug,"Freeing all new client/server information.\n"); 276 LOG (llevDebug, "Freeing all new client/server information.\n");
302 free_socket_images(); 277 free_socket_images ();
303 free(init_sockets); 278 free (init_sockets);
304} 279}
305 280
306/** 281/**
307 * Frees a socket. 282 * Frees a socket.
308 * Basically, all we need to do here is free all data structures that 283 * Basically, all we need to do here is free all data structures that
309 * might be associated with the socket. It is up to the caller to 284 * might be associated with the socket. It is up to the caller to
310 * update the list 285 * update the list
311 */ 286 */
312 287
288void
313void free_newsocket(NewSocket *ns) 289free_newsocket (NewSocket * ns)
314{ 290{
315#ifdef WIN32 /* ***win32: closesocket in windows style */
316 shutdown(ns->fd,SD_BOTH);
317 if (closesocket(ns->fd)) {
318#else
319 if (close(ns->fd)) { 291 if (close (ns->fd))
320#endif /* win32 */ 292 {
321 293
322#ifdef ESRV_DEBUG 294#ifdef ESRV_DEBUG
323 LOG(llevDebug,"Error closing socket %d\n", ns->fd); 295 LOG (llevDebug, "Error closing socket %d\n", ns->fd);
324#endif 296#endif
325 } 297 }
298
326 if (ns->stats.range) 299 if (ns->stats.range)
327 free(ns->stats.range); 300 free (ns->stats.range);
301
328 if (ns->stats.title) 302 if (ns->stats.title)
329 free(ns->stats.title); 303 free (ns->stats.title);
330 if (ns->comment) 304
331 free(ns->comment);
332 free(ns->host); 305 free (ns->host);
333 free(ns->inbuf.buf); 306 free (ns->inbuf.buf);
334} 307}
335 308
336/** Sends the 'goodbye' command to the player, and closes connection. */ 309/** Sends the 'goodbye' command to the player, and closes connection. */
310void
337void final_free_player(player *pl) 311final_free_player (player *pl)
338{ 312{
339 cs_write_string(&pl->socket, "goodbye", 8); 313 cs_write_string (&pl->socket, "goodbye", 8);
340 free_newsocket(&pl->socket); 314 free_newsocket (&pl->socket);
341 free_player(pl); 315 free_player (pl);
342} 316}
343

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