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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.2 by root, Thu Aug 17 20:23:32 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 1.2 2006/08/17 20:23:32 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;
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;
158 ns->current_x = 0; 147 ns->current_x = 0;
159 ns->current_y = 0; 148 ns->current_y = 0;
149 ns->client[0] = 0;
150 ns->buggy_mapscroll = 0;
160 151
161 ns->sent_scroll=0; 152 ns->sent_scroll = 0;
162 ns->host=strdup_local(from_ip); 153 ns->host = strdup_local (from_ip);
163 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);
164 sl.buf=(unsigned char*)buf; 155 sl.buf = (unsigned char *) buf;
165 sl.len=strlen((char*)buf); 156 sl.len = strlen ((char *) buf);
166 Send_With_Handling(ns, &sl); 157 Send_With_Handling (ns, &sl);
167#ifdef CS_LOGSTATS 158#ifdef CS_LOGSTATS
168 if (socket_info.nconns>cst_tot.max_conn) 159 if (socket_info.nconns > cst_tot.max_conn)
169 cst_tot.max_conn = socket_info.nconns; 160 cst_tot.max_conn = socket_info.nconns;
170 if (socket_info.nconns>cst_lst.max_conn) 161 if (socket_info.nconns > cst_lst.max_conn)
171 cst_lst.max_conn = socket_info.nconns; 162 cst_lst.max_conn = socket_info.nconns;
172#endif 163#endif
173} 164}
174 165
175 166
176/** 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
177void init_ericserver(void) 169init_ericserver (void)
178{ 170{
179 struct sockaddr_in insock; 171 struct sockaddr_in insock;
180 struct protoent *protox; 172 struct protoent *protox;
181 struct linger linger_opt; 173 struct linger linger_opt;
182
183#ifdef WIN32 /* ***win32 - we init a windows socket */
184 WSADATA w;
185
186 socket_info.max_filedescriptor = 1; /* used in select, ignored in winsockets */
187 WSAStartup (0x0101,&w); /* this setup all socket stuff */
188 /* ill include no error tests here, winsocket 1.1 should always work */
189 /* except some old win95 versions without tcp/ip stack */
190#else /* non windows */
191 174
192#ifdef HAVE_SYSCONF 175#ifdef HAVE_SYSCONF
193 socket_info.max_filedescriptor = sysconf(_SC_OPEN_MAX); 176 socket_info.max_filedescriptor = sysconf (_SC_OPEN_MAX);
194#else 177#else
195# ifdef HAVE_GETDTABLESIZE 178# ifdef HAVE_GETDTABLESIZE
196 socket_info.max_filedescriptor = getdtablesize(); 179 socket_info.max_filedescriptor = getdtablesize ();
197# else 180# else
198 "Unable to find usable function to get max filedescriptors"; 181 "Unable to find usable function to get max filedescriptors";
199# endif 182# endif
200#endif 183#endif
201#endif /* win32 */
202 184
203 socket_info.timeout.tv_sec = 0; 185 socket_info.timeout.tv_sec = 0;
204 socket_info.timeout.tv_usec = 0; 186 socket_info.timeout.tv_usec = 0;
205 socket_info.nconns=0; 187 socket_info.nconns = 0;
206 188
207#ifdef CS_LOGSTATS 189#ifdef CS_LOGSTATS
208 memset(&cst_tot, 0, sizeof(CS_Stats)); 190 memset (&cst_tot, 0, sizeof (CS_Stats));
209 memset(&cst_lst, 0, sizeof(CS_Stats)); 191 memset (&cst_lst, 0, sizeof (CS_Stats));
210 cst_tot.time_start=time(NULL); 192 cst_tot.time_start = time (NULL);
211 cst_lst.time_start=time(NULL); 193 cst_lst.time_start = time (NULL);
212#endif 194#endif
213 195
214 LOG(llevDebug,"Initialize new client/server data\n"); 196 LOG (llevDebug, "Initialize new client/server data\n");
215 socket_info.nconns = 1; 197 socket_info.nconns = 1;
216 init_sockets = (NewSocket *) malloc(sizeof(NewSocket)); 198 init_sockets = (NewSocket *) malloc (sizeof (NewSocket));
217 init_sockets[0].faces_sent = NULL; /* unused */ 199 init_sockets[0].faces_sent = NULL; /* unused */
218 socket_info.allocated_sockets=1; 200 socket_info.allocated_sockets = 1;
219 201
220 protox = getprotobyname("tcp"); 202 protox = getprotobyname ("tcp");
221 if (protox==NULL) { 203 if (protox == NULL)
204 {
222 LOG(llevError,"init_ericserver: Error getting protox\n"); 205 LOG (llevError, "init_ericserver: Error getting protox\n");
223 return; 206 return;
224 } 207 }
225 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);
226 if (init_sockets[0].fd == -1) { 209 if (init_sockets[0].fd == -1)
210 {
227 LOG(llevError, "Cannot create socket: %s\n", strerror_local(errno)); 211 LOG (llevError, "Cannot create socket: %s\n", strerror (errno));
228 exit(-1); 212 exit (-1);
229 } 213 }
230 insock.sin_family = AF_INET; 214 insock.sin_family = AF_INET;
231 insock.sin_port = htons(settings.csport); 215 insock.sin_port = htons (settings.csport);
232 insock.sin_addr.s_addr = htonl(INADDR_ANY); 216 insock.sin_addr.s_addr = htonl (INADDR_ANY);
233 217
234 linger_opt.l_onoff = 0; 218 linger_opt.l_onoff = 0;
235 linger_opt.l_linger = 0; 219 linger_opt.l_linger = 0;
236 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)))
237 sizeof(struct linger))) { 221 {
238 LOG(llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror_local(errno)); 222 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno));
239 } 223 }
224
240/* 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
241 * these functions are both using the same calling syntax, just one 226 * these functions are both using the same calling syntax, just one
242 * of them needs extra valus passed. 227 * of them needs extra valus passed.
243 */ 228 */
244#if defined(__osf__) || defined(hpux) || defined(sgi) || defined(NeXT) || \ 229#if defined(__osf__) || defined(hpux) || defined(sgi) || defined(NeXT) || \
245 defined(__sun__) || defined(__linux__) || defined(SVR4) || \ 230 defined(__sun__) || defined(__linux__) || defined(SVR4) || \
246 defined(__FreeBSD__) || defined(__OpenBSD__) || \ 231 defined(__FreeBSD__) || defined(__OpenBSD__) || \
247 defined(WIN32) /* ---win32 add this here */ || \ 232 defined(WIN32) /* ---win32 add this here */ || \
248 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)))
249 { 238 {
250#ifdef WIN32 239 LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno));
251 char tmp = 1; 240 }
241 }
252#else 242#else
253 int tmp =1;
254#endif
255
256 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 {
257 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(errno)); 245 LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno));
258 }
259 } 246 }
260#else
261 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_REUSEADDR,(char *)NULL,0)) {
262 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(errno));
263 }
264#endif 247#endif
265 248
266 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 {
267 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));
268#ifdef WIN32 /* ***win32: close() -> closesocket() */
269 shutdown(init_sockets[0].fd,SD_BOTH);
270 closesocket(init_sockets[0].fd);
271#else
272 close(init_sockets[0].fd); 252 close (init_sockets[0].fd);
273#endif /* win32 */ 253 exit (-1);
274 exit(-1);
275 } 254 }
276 if (listen(init_sockets[0].fd,5) == (-1)) { 255 if (listen (init_sockets[0].fd, 5) == (-1))
256 {
277 LOG(llevError, "Cannot listen on socket: %s\n", strerror_local(errno)); 257 LOG (llevError, "Cannot listen on socket: %s\n", strerror (errno));
278#ifdef WIN32 /* ***win32: close() -> closesocket() */
279 shutdown(init_sockets[0].fd,SD_BOTH);
280 closesocket(init_sockets[0].fd);
281#else
282 close(init_sockets[0].fd); 258 close (init_sockets[0].fd);
283#endif /* win32 */ 259 exit (-1);
284 exit(-1);
285 } 260 }
286 init_sockets[0].status=Ns_Add; 261 init_sockets[0].status = Ns_Add;
287 read_client_images(); 262 read_client_images ();
288} 263}
289 264
290 265
291/******************************************************************************* 266/*******************************************************************************
292 * 267 *
293 * Start of functions dealing with freeing of the data. 268 * Start of functions dealing with freeing of the data.
294 * 269 *
295 ******************************************************************************/ 270 ******************************************************************************/
296 271
297/** Free's all the memory that ericserver allocates. */ 272/** Free's all the memory that ericserver allocates. */
273void
298void free_all_newserver(void) 274free_all_newserver (void)
299{ 275{
300 LOG(llevDebug,"Freeing all new client/server information.\n"); 276 LOG (llevDebug, "Freeing all new client/server information.\n");
301 free_socket_images(); 277 free_socket_images ();
302 free(init_sockets); 278 free (init_sockets);
303} 279}
304 280
305/** 281/**
306 * Frees a socket. 282 * Frees a socket.
307 * 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
308 * 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
309 * update the list 285 * update the list
310 */ 286 */
311 287
288void
312void free_newsocket(NewSocket *ns) 289free_newsocket (NewSocket * ns)
313{ 290{
314#ifdef WIN32 /* ***win32: closesocket in windows style */
315 shutdown(ns->fd,SD_BOTH);
316 if (closesocket(ns->fd)) {
317#else
318 if (close(ns->fd)) { 291 if (close (ns->fd))
319#endif /* win32 */ 292 {
320 293
321#ifdef ESRV_DEBUG 294#ifdef ESRV_DEBUG
322 LOG(llevDebug,"Error closing socket %d\n", ns->fd); 295 LOG (llevDebug, "Error closing socket %d\n", ns->fd);
323#endif 296#endif
324 } 297 }
298
325 if (ns->stats.range) 299 if (ns->stats.range)
326 free(ns->stats.range); 300 free (ns->stats.range);
301
327 if (ns->stats.title) 302 if (ns->stats.title)
328 free(ns->stats.title); 303 free (ns->stats.title);
329 if (ns->comment) 304
330 free(ns->comment);
331 free(ns->host); 305 free (ns->host);
332 free(ns->inbuf.buf); 306 free (ns->inbuf.buf);
333} 307}
334 308
335/** Sends the 'goodbye' command to the player, and closes connection. */ 309/** Sends the 'goodbye' command to the player, and closes connection. */
310void
336void final_free_player(player *pl) 311final_free_player (player *pl)
337{ 312{
338 cs_write_string(&pl->socket, "goodbye", 8); 313 cs_write_string (&pl->socket, "goodbye", 8);
339 free_newsocket(&pl->socket); 314 free_newsocket (&pl->socket);
340 free_player(pl); 315 free_player (pl);
341} 316}
342

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