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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.1 by elmex, Sun Aug 13 17:16:05 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 1.1 2006/08/13 17:16:05 elmex 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;
117 ns->extmap = 0;
129 118
130 /* we should really do some checking here - if total clients overflows 119 /* we should really do some checking here - if total clients overflows
131 * 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
132 * duplicating (not likely in normal cases, but malicous attacks that 121 * duplicating (not likely in normal cases, but malicous attacks that
133 * just open and close connections could get this total up. 122 * just open and close connections could get this total up.
134 */ 123 */
135 ns->inbuf.len=0; 124 ns->inbuf.len = 0;
136 ns->inbuf.buf= (unsigned char*) malloc( sizeof( unsigned char ) * MAXSOCKBUF ); 125 ns->inbuf.buf = (unsigned char *) malloc (sizeof (unsigned char) * MAXSOCKBUF);
137 /* Basic initialization. Needed because we do a check in 126 /* Basic initialization. Needed because we do a check in
138 * HandleClient for oldsocketmode without checking the 127 * HandleClient for oldsocketmode without checking the
139 * length of data. 128 * length of data.
140 */ 129 */
141 memset( ns->inbuf.buf, 0, sizeof( unsigned char ) * MAXSOCKBUF ); 130 memset (ns->inbuf.buf, 0, sizeof (unsigned char) * MAXSOCKBUF);
142 memset(&ns->lastmap,0,sizeof(struct Map)); 131 memset (&ns->lastmap, 0, sizeof (struct Map));
143 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));
144 memset(&ns->anims_sent,0,sizeof(ns->anims_sent)); 133 memset (&ns->anims_sent, 0, sizeof (ns->anims_sent));
145 memset(&ns->stats,0,sizeof(struct statsinfo)); 134 memset (&ns->stats, 0, sizeof (struct statsinfo));
146 /* 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
147 * 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
148 * face information. 137 * face information.
149 */ 138 */
150 ns->faces_sent[0] = NS_FACESENT_FACE; 139 ns->faces_sent[0] = NS_FACESENT_FACE;
151 140
152 ns->outputbuffer.start=0; 141 ns->outputbuffer.start = 0;
153 ns->outputbuffer.len=0; 142 ns->outputbuffer.len = 0;
154 ns->can_write=1; 143 ns->can_write = 1;
155 ns->password_fails = 0; 144 ns->password_fails = 0;
156 145
157 ns->current_map = 0; 146 ns->current_map = 0;
147 ns->current_x = 0;
148 ns->current_y = 0;
149 ns->client[0] = 0;
150 ns->buggy_mapscroll = 0;
158 151
159 ns->sent_scroll=0; 152 ns->sent_scroll = 0;
160 ns->host=strdup_local(from_ip); 153 ns->host = strdup_local (from_ip);
161 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);
162 sl.buf=(unsigned char*)buf; 155 sl.buf = (unsigned char *) buf;
163 sl.len=strlen((char*)buf); 156 sl.len = strlen ((char *) buf);
164 Send_With_Handling(ns, &sl); 157 Send_With_Handling (ns, &sl);
165#ifdef CS_LOGSTATS 158#ifdef CS_LOGSTATS
166 if (socket_info.nconns>cst_tot.max_conn) 159 if (socket_info.nconns > cst_tot.max_conn)
167 cst_tot.max_conn = socket_info.nconns; 160 cst_tot.max_conn = socket_info.nconns;
168 if (socket_info.nconns>cst_lst.max_conn) 161 if (socket_info.nconns > cst_lst.max_conn)
169 cst_lst.max_conn = socket_info.nconns; 162 cst_lst.max_conn = socket_info.nconns;
170#endif 163#endif
171} 164}
172 165
173 166
174/** 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
175void init_ericserver(void) 169init_ericserver (void)
176{ 170{
177 struct sockaddr_in insock; 171 struct sockaddr_in insock;
178 struct protoent *protox; 172 struct protoent *protox;
179 struct linger linger_opt; 173 struct linger linger_opt;
180
181#ifdef WIN32 /* ***win32 - we init a windows socket */
182 WSADATA w;
183
184 socket_info.max_filedescriptor = 1; /* used in select, ignored in winsockets */
185 WSAStartup (0x0101,&w); /* this setup all socket stuff */
186 /* ill include no error tests here, winsocket 1.1 should always work */
187 /* except some old win95 versions without tcp/ip stack */
188#else /* non windows */
189 174
190#ifdef HAVE_SYSCONF 175#ifdef HAVE_SYSCONF
191 socket_info.max_filedescriptor = sysconf(_SC_OPEN_MAX); 176 socket_info.max_filedescriptor = sysconf (_SC_OPEN_MAX);
192#else 177#else
193# ifdef HAVE_GETDTABLESIZE 178# ifdef HAVE_GETDTABLESIZE
194 socket_info.max_filedescriptor = getdtablesize(); 179 socket_info.max_filedescriptor = getdtablesize ();
195# else 180# else
196 "Unable to find usable function to get max filedescriptors"; 181 "Unable to find usable function to get max filedescriptors";
197# endif 182# endif
198#endif 183#endif
199#endif /* win32 */
200 184
201 socket_info.timeout.tv_sec = 0; 185 socket_info.timeout.tv_sec = 0;
202 socket_info.timeout.tv_usec = 0; 186 socket_info.timeout.tv_usec = 0;
203 socket_info.nconns=0; 187 socket_info.nconns = 0;
204 188
205#ifdef CS_LOGSTATS 189#ifdef CS_LOGSTATS
206 memset(&cst_tot, 0, sizeof(CS_Stats)); 190 memset (&cst_tot, 0, sizeof (CS_Stats));
207 memset(&cst_lst, 0, sizeof(CS_Stats)); 191 memset (&cst_lst, 0, sizeof (CS_Stats));
208 cst_tot.time_start=time(NULL); 192 cst_tot.time_start = time (NULL);
209 cst_lst.time_start=time(NULL); 193 cst_lst.time_start = time (NULL);
210#endif 194#endif
211 195
212 LOG(llevDebug,"Initialize new client/server data\n"); 196 LOG (llevDebug, "Initialize new client/server data\n");
213 socket_info.nconns = 1; 197 socket_info.nconns = 1;
214 init_sockets = (NewSocket *) malloc(sizeof(NewSocket)); 198 init_sockets = (NewSocket *) malloc (sizeof (NewSocket));
215 init_sockets[0].faces_sent = NULL; /* unused */ 199 init_sockets[0].faces_sent = NULL; /* unused */
216 socket_info.allocated_sockets=1; 200 socket_info.allocated_sockets = 1;
217 201
218 protox = getprotobyname("tcp"); 202 protox = getprotobyname ("tcp");
219 if (protox==NULL) { 203 if (protox == NULL)
204 {
220 LOG(llevError,"init_ericserver: Error getting protox\n"); 205 LOG (llevError, "init_ericserver: Error getting protox\n");
221 return; 206 return;
222 } 207 }
223 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);
224 if (init_sockets[0].fd == -1) { 209 if (init_sockets[0].fd == -1)
210 {
225 LOG(llevError, "Cannot create socket: %s\n", strerror_local(errno)); 211 LOG (llevError, "Cannot create socket: %s\n", strerror (errno));
226 exit(-1); 212 exit (-1);
227 } 213 }
228 insock.sin_family = AF_INET; 214 insock.sin_family = AF_INET;
229 insock.sin_port = htons(settings.csport); 215 insock.sin_port = htons (settings.csport);
230 insock.sin_addr.s_addr = htonl(INADDR_ANY); 216 insock.sin_addr.s_addr = htonl (INADDR_ANY);
231 217
232 linger_opt.l_onoff = 0; 218 linger_opt.l_onoff = 0;
233 linger_opt.l_linger = 0; 219 linger_opt.l_linger = 0;
234 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)))
235 sizeof(struct linger))) { 221 {
236 LOG(llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror_local(errno)); 222 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno));
237 } 223 }
224
238/* 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
239 * these functions are both using the same calling syntax, just one 226 * these functions are both using the same calling syntax, just one
240 * of them needs extra valus passed. 227 * of them needs extra valus passed.
241 */ 228 */
242#if defined(__osf__) || defined(hpux) || defined(sgi) || defined(NeXT) || \ 229#if defined(__osf__) || defined(hpux) || defined(sgi) || defined(NeXT) || \
243 defined(__sun__) || defined(__linux__) || defined(SVR4) || \ 230 defined(__sun__) || defined(__linux__) || defined(SVR4) || \
244 defined(__FreeBSD__) || defined(__OpenBSD__) || \ 231 defined(__FreeBSD__) || defined(__OpenBSD__) || \
245 defined(WIN32) /* ---win32 add this here */ || \ 232 defined(WIN32) /* ---win32 add this here */ || \
246 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)))
247 { 238 {
248#ifdef WIN32 239 LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno));
249 char tmp = 1; 240 }
241 }
250#else 242#else
251 int tmp =1;
252#endif
253
254 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 {
255 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(errno)); 245 LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno));
256 }
257 } 246 }
258#else
259 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_REUSEADDR,(char *)NULL,0)) {
260 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(errno));
261 }
262#endif 247#endif
263 248
264 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 {
265 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));
266#ifdef WIN32 /* ***win32: close() -> closesocket() */
267 shutdown(init_sockets[0].fd,SD_BOTH);
268 closesocket(init_sockets[0].fd);
269#else
270 close(init_sockets[0].fd); 252 close (init_sockets[0].fd);
271#endif /* win32 */ 253 exit (-1);
272 exit(-1);
273 } 254 }
274 if (listen(init_sockets[0].fd,5) == (-1)) { 255 if (listen (init_sockets[0].fd, 5) == (-1))
256 {
275 LOG(llevError, "Cannot listen on socket: %s\n", strerror_local(errno)); 257 LOG (llevError, "Cannot listen on socket: %s\n", strerror (errno));
276#ifdef WIN32 /* ***win32: close() -> closesocket() */
277 shutdown(init_sockets[0].fd,SD_BOTH);
278 closesocket(init_sockets[0].fd);
279#else
280 close(init_sockets[0].fd); 258 close (init_sockets[0].fd);
281#endif /* win32 */ 259 exit (-1);
282 exit(-1);
283 } 260 }
284 init_sockets[0].status=Ns_Add; 261 init_sockets[0].status = Ns_Add;
285 read_client_images(); 262 read_client_images ();
286} 263}
287 264
288 265
289/******************************************************************************* 266/*******************************************************************************
290 * 267 *
291 * Start of functions dealing with freeing of the data. 268 * Start of functions dealing with freeing of the data.
292 * 269 *
293 ******************************************************************************/ 270 ******************************************************************************/
294 271
295/** Free's all the memory that ericserver allocates. */ 272/** Free's all the memory that ericserver allocates. */
273void
296void free_all_newserver(void) 274free_all_newserver (void)
297{ 275{
298 LOG(llevDebug,"Freeing all new client/server information.\n"); 276 LOG (llevDebug, "Freeing all new client/server information.\n");
299 free_socket_images(); 277 free_socket_images ();
300 free(init_sockets); 278 free (init_sockets);
301} 279}
302 280
303/** 281/**
304 * Frees a socket. 282 * Frees a socket.
305 * 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
306 * 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
307 * update the list 285 * update the list
308 */ 286 */
309 287
288void
310void free_newsocket(NewSocket *ns) 289free_newsocket (NewSocket * ns)
311{ 290{
312#ifdef WIN32 /* ***win32: closesocket in windows style */
313 shutdown(ns->fd,SD_BOTH);
314 if (closesocket(ns->fd)) {
315#else
316 if (close(ns->fd)) { 291 if (close (ns->fd))
317#endif /* win32 */ 292 {
318 293
319#ifdef ESRV_DEBUG 294#ifdef ESRV_DEBUG
320 LOG(llevDebug,"Error closing socket %d\n", ns->fd); 295 LOG (llevDebug, "Error closing socket %d\n", ns->fd);
321#endif 296#endif
322 } 297 }
298
323 if (ns->stats.range) 299 if (ns->stats.range)
324 free(ns->stats.range); 300 free (ns->stats.range);
301
325 if (ns->stats.title) 302 if (ns->stats.title)
326 free(ns->stats.title); 303 free (ns->stats.title);
327 if (ns->comment) 304
328 free(ns->comment);
329 free(ns->host); 305 free (ns->host);
330 free(ns->inbuf.buf); 306 free (ns->inbuf.buf);
331} 307}
332 308
333/** Sends the 'goodbye' command to the player, and closes connection. */ 309/** Sends the 'goodbye' command to the player, and closes connection. */
310void
334void final_free_player(player *pl) 311final_free_player (player *pl)
335{ 312{
336 cs_write_string(&pl->socket, "goodbye", 8); 313 cs_write_string (&pl->socket, "goodbye", 8);
337 free_newsocket(&pl->socket); 314 free_newsocket (&pl->socket);
338 free_player(pl); 315 free_player (pl);
339} 316}
340

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