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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.6 by root, Wed Aug 30 16:30:37 2006 UTC vs.
Revision 1.13 by root, Thu Dec 14 01:12:35 2006 UTC

1/*
2 * static char *rcsid_init_c =
3 * "$Id: init.C,v 1.6 2006/08/30 16:30:37 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
… …
37 * The reading of data is handled in ericserver.c 32 * The reading of data is handled in ericserver.c
38 */ 33 */
39 34
40 35
41#include <global.h> 36#include <global.h>
42#ifndef __CEXTRACT__
43#include <sproto.h> 37#include <sproto.h>
44#endif
45#ifndef WIN32 /* ---win32 exclude include files */
46#include <sys/types.h> 38#include <sys/types.h>
47#include <sys/time.h> 39#include <sys/time.h>
48#include <sys/socket.h> 40#include <sys/socket.h>
49#include <netinet/in.h> 41#include <netinet/in.h>
50#include <netdb.h> 42#include <netdb.h>
51#endif /* win32 */
52 43
53#ifdef HAVE_UNISTD_H 44#ifdef HAVE_UNISTD_H
54#include <unistd.h> 45# include <unistd.h>
55#endif 46#endif
56 47
57#ifdef HAVE_ARPA_INET_H 48#ifdef HAVE_ARPA_INET_H
58#include <arpa/inet.h> 49# include <arpa/inet.h>
59#endif 50#endif
60#include <newserver.h> 51#include <newserver.h>
61 52
62Socket_Info socket_info; 53Socket_Info socket_info;
63NewSocket *init_sockets; 54NewSocket *init_sockets;
… …
65/** 56/**
66 * Initializes a connection. Really, it just sets up the data structure, 57 * Initializes a connection. Really, it just sets up the data structure,
67 * socket setup is handled elsewhere. We do send a version to the 58 * socket setup is handled elsewhere. We do send a version to the
68 * client. 59 * client.
69 */ 60 */
61void
70void InitConnection(NewSocket *ns, const char *from_ip) 62InitConnection (NewSocket *ns, const char *from_ip)
71{ 63{
72 SockList sl;
73 char buf[256];
74 int bufsize=65535; /*Supposed absolute upper limit */ 64 int bufsize = 65535; /*Supposed absolute upper limit */
75 int oldbufsize; 65 int oldbufsize;
76 int buflen=sizeof(int); 66 int buflen = sizeof (int);
77 67
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) { 68 if (fcntl (ns->fd, F_SETFL, O_NONBLOCK) == -1)
85 LOG(llevError,"InitConnection: Error on fcntl.\n"); 69 LOG (llevError, "InitConnection: Error on fcntl.\n");
86 }
87#endif /* end win32 */
88 70
89 if (getsockopt(ns->fd,SOL_SOCKET,SO_SNDBUF, (char*)&oldbufsize, (socklen_t*) &buflen)==-1) 71 if (getsockopt (ns->fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen) == -1)
90 oldbufsize=0; 72 oldbufsize = 0;
73
91 if (oldbufsize<bufsize) { 74 if (oldbufsize < bufsize)
75 if (setsockopt (ns->fd, SOL_SOCKET, SO_SNDBUF, (char *) &bufsize, sizeof (&bufsize)))
76 LOG (llevError, "InitConnection: setsockopt unable to set output buf size to %d\n", bufsize);
77
78 buflen = sizeof (oldbufsize);
79 getsockopt (ns->fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen);
92#ifdef ESRV_DEBUG 80#ifdef ESRV_DEBUG
93 LOG(llevDebug, "Default buffer size was %d bytes, will reset it to %d\n", oldbufsize, bufsize);
94#endif
95 if(setsockopt(ns->fd,SOL_SOCKET,SO_SNDBUF, (char*)&bufsize, sizeof(&bufsize))) {
96 LOG(llevError,"InitConnection: setsockopt unable to set output buf size to %d\n", bufsize);
97 }
98 }
99 buflen=sizeof(oldbufsize);
100 getsockopt(ns->fd,SOL_SOCKET,SO_SNDBUF, (char*)&oldbufsize, (socklen_t*) &buflen);
101#ifdef ESRV_DEBUG
102 LOG(llevDebug, "Socket buffer size now %d bytes\n", oldbufsize); 81 LOG (llevDebug, "Socket buffer size now %d bytes\n", oldbufsize);
103#endif 82#endif
104 83
105 ns->faceset = 0; 84 ns->faceset = 0;
106 ns->facecache = 0; 85 ns->facecache = 0;
107 ns->image2 = 0; 86 ns->image2 = 0;
108 ns->sound = 0; 87 ns->sound = 0;
109 ns->exp64 = 0; 88 ns->exp64 = 0;
110 ns->monitor_spells = 0; 89 ns->monitor_spells = 0;
111 ns->mapmode = Map0Cmd; 90 ns->mapmode = Map0Cmd;
112 ns->darkness = 1; 91 ns->darkness = 1;
113 ns->status = Ns_Add; 92 ns->status = Ns_Add;
114 ns->comment = NULL;
115 ns->old_mode = (Old_Mode) 0;
116 ns->mapx = 11; 93 ns->mapx = 11;
117 ns->mapy = 11; 94 ns->mapy = 11;
118 ns->newmapcmd= 0; 95 ns->newmapcmd = 0;
119 ns->itemcmd = 1; /* Default is version item1 command*/ 96 ns->itemcmd = 1; /* Default is version item1 command */
120 ns->ext_mapinfos=0; /*extendedmapinfo datas*/ 97 ns->ext_mapinfos = 0; /*extendedmapinfo datas */
121 ns->EMI_smooth=0; 98 ns->EMI_smooth = 0;
122 ns->look_position = 0; 99 ns->look_position = 0;
123 ns->update_look = 0; 100 ns->update_look = 0;
124 ns->has_readable_type = 0; 101 ns->has_readable_type = 0;
125 ns->supported_readables = 0; 102 ns->supported_readables = 0;
126 ns->monitor_spells = 0; 103 ns->monitor_spells = 0;
127 ns->mapinfocmd = 0; 104 ns->mapinfocmd = 0;
128 ns->extcmd = 0; 105 ns->extcmd = 0;
129 ns->extmap = 0; 106 ns->extmap = 0;
130 107
131 /* we should really do some checking here - if total clients overflows 108 /* 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 109 * we need to do something more intelligent, because client id's will start
133 * duplicating (not likely in normal cases, but malicous attacks that 110 * duplicating (not likely in normal cases, but malicous attacks that
134 * just open and close connections could get this total up. 111 * just open and close connections could get this total up.
135 */ 112 */
136 ns->inbuf.len=0; 113 ns->inbuf_len = 0;
137 ns->inbuf.buf= (unsigned char*) malloc( sizeof( unsigned char ) * MAXSOCKBUF ); 114
138 /* Basic initialization. Needed because we do a check in 115 /* Basic initialization. Needed because we do a check in
139 * HandleClient for oldsocketmode without checking the 116 * HandleClient for oldsocketmode without checking the
140 * length of data. 117 * length of data.
141 */ 118 */
142 memset( ns->inbuf.buf, 0, sizeof( unsigned char ) * MAXSOCKBUF );
143 memset(&ns->lastmap,0,sizeof(struct Map)); 119 memset (&ns->lastmap, 0, sizeof (struct Map));
144 memset(ns->faces_sent, 0, ns->faces_sent_len*sizeof(*ns->faces_sent)); 120 memset (ns->faces_sent, 0, ns->faces_sent_len * sizeof (*ns->faces_sent));
145 memset(&ns->anims_sent,0,sizeof(ns->anims_sent)); 121 memset (&ns->anims_sent, 0, sizeof (ns->anims_sent));
146 memset(&ns->stats,0,sizeof(struct statsinfo)); 122 memset (&ns->stats, 0, sizeof (struct statsinfo));
147 /* Do this so we don't send a face command for the client for 123 /* 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 124 * this face. Face 0 is sent to the client to say clear
149 * face information. 125 * face information.
150 */ 126 */
151 ns->faces_sent[0] = NS_FACESENT_FACE; 127 ns->faces_sent[0] = NS_FACESENT_FACE;
152 128
153 ns->outputbuffer.start=0; 129 ns->outputbuffer.start = 0;
154 ns->outputbuffer.len=0; 130 ns->outputbuffer.len = 0;
155 ns->can_write=1; 131 ns->can_write = 1;
156 ns->password_fails = 0; 132 ns->password_fails = 0;
157 133
158 ns->current_map = 0; 134 ns->current_map = 0;
159 ns->current_x = 0; 135 ns->current_x = 0;
160 ns->current_y = 0; 136 ns->current_y = 0;
161 ns->client[0] = 0; 137 ns->client[0] = 0;
162 ns->buggy_mapscroll = 0; 138 ns->buggy_mapscroll = 0;
163 139
164 ns->sent_scroll=0; 140 ns->sent_scroll = 0;
165 ns->host=strdup_local(from_ip); 141 ns->host = strdup_local (from_ip);
142
143 {
144 SockList sl (MAXSOCKBUF);
145
166 sprintf((char*)buf, "version %d %d %s\n", VERSION_CS,VERSION_SC, VERSION_INFO); 146 sl.printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
167 sl.buf=(unsigned char*)buf;
168 sl.len=strlen((char*)buf);
169 Send_With_Handling(ns, &sl); 147 Send_With_Handling (ns, &sl);
148 sl.free ();
149 }
150
170#ifdef CS_LOGSTATS 151#ifdef CS_LOGSTATS
171 if (socket_info.nconns>cst_tot.max_conn) 152 if (socket_info.nconns > cst_tot.max_conn)
172 cst_tot.max_conn = socket_info.nconns; 153 cst_tot.max_conn = socket_info.nconns;
173 if (socket_info.nconns>cst_lst.max_conn) 154 if (socket_info.nconns > cst_lst.max_conn)
174 cst_lst.max_conn = socket_info.nconns; 155 cst_lst.max_conn = socket_info.nconns;
175#endif 156#endif
176} 157}
177 158
178 159
179/** This sets up the socket and reads all the image information into memory. */ 160/** This sets up the socket and reads all the image information into memory. */
161void
180void init_ericserver(void) 162init_ericserver (void)
181{ 163{
182 struct sockaddr_in insock; 164 struct sockaddr_in insock;
183 struct protoent *protox; 165 struct protoent *protox;
184 struct linger linger_opt; 166 struct linger linger_opt;
185 167
186#ifdef WIN32 /* ***win32 - we init a windows socket */
187 WSADATA w;
188
189 socket_info.max_filedescriptor = 1; /* used in select, ignored in winsockets */
190 WSAStartup (0x0101,&w); /* this setup all socket stuff */
191 /* ill include no error tests here, winsocket 1.1 should always work */
192 /* except some old win95 versions without tcp/ip stack */
193#else /* non windows */
194
195#ifdef HAVE_SYSCONF
196 socket_info.max_filedescriptor = sysconf(_SC_OPEN_MAX); 168 socket_info.max_filedescriptor = sysconf (_SC_OPEN_MAX);
197#else
198# ifdef HAVE_GETDTABLESIZE
199 socket_info.max_filedescriptor = getdtablesize();
200# else
201 "Unable to find usable function to get max filedescriptors";
202# endif
203#endif
204#endif /* win32 */
205 169
206 socket_info.timeout.tv_sec = 0; 170 socket_info.timeout.tv_sec = 0;
207 socket_info.timeout.tv_usec = 0; 171 socket_info.timeout.tv_usec = 0;
208 socket_info.nconns=0; 172 socket_info.nconns = 0;
209 173
210#ifdef CS_LOGSTATS 174#ifdef CS_LOGSTATS
211 memset(&cst_tot, 0, sizeof(CS_Stats)); 175 memset (&cst_tot, 0, sizeof (CS_Stats));
212 memset(&cst_lst, 0, sizeof(CS_Stats)); 176 memset (&cst_lst, 0, sizeof (CS_Stats));
213 cst_tot.time_start=time(NULL); 177 cst_tot.time_start = time (NULL);
214 cst_lst.time_start=time(NULL); 178 cst_lst.time_start = time (NULL);
215#endif 179#endif
216 180
217 LOG(llevDebug,"Initialize new client/server data\n"); 181 LOG (llevDebug, "Initialize new client/server data\n");
218 socket_info.nconns = 1; 182 socket_info.nconns = 1;
219 init_sockets = (NewSocket *) malloc(sizeof(NewSocket)); 183 init_sockets = (NewSocket *) malloc (sizeof (NewSocket));
220 init_sockets[0].faces_sent = NULL; /* unused */ 184 init_sockets[0].faces_sent = NULL; /* unused */
221 socket_info.allocated_sockets=1; 185 socket_info.allocated_sockets = 1;
222 186
223 protox = getprotobyname("tcp"); 187 protox = getprotobyname ("tcp");
224 if (protox==NULL) { 188 if (protox == NULL)
189 {
225 LOG(llevError,"init_ericserver: Error getting protox\n"); 190 LOG (llevError, "init_ericserver: Error getting protox\n");
226 return; 191 return;
227 } 192 }
193
228 init_sockets[0].fd = socket(PF_INET, SOCK_STREAM, protox->p_proto); 194 init_sockets[0].fd = socket (PF_INET, SOCK_STREAM, protox->p_proto);
229 if (init_sockets[0].fd == -1) { 195 if (init_sockets[0].fd == -1)
196 {
230 LOG(llevError, "Cannot create socket: %s\n", strerror(errno)); 197 LOG (llevError, "Cannot create socket: %s\n", strerror (errno));
231 exit(-1); 198 exit (-1);
232 } 199 }
200
233 insock.sin_family = AF_INET; 201 insock.sin_family = AF_INET;
234 insock.sin_port = htons(settings.csport); 202 insock.sin_port = htons (settings.csport);
235 insock.sin_addr.s_addr = htonl(INADDR_ANY); 203 insock.sin_addr.s_addr = htonl (INADDR_ANY);
236 204
237 linger_opt.l_onoff = 0; 205 linger_opt.l_onoff = 0;
238 linger_opt.l_linger = 0; 206 linger_opt.l_linger = 0;
239 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_LINGER,(char *) &linger_opt, 207 if (setsockopt (init_sockets[0].fd, SOL_SOCKET, SO_LINGER, (char *) &linger_opt, sizeof (struct linger)))
240 sizeof(struct linger))) {
241 LOG(llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror(errno)); 208 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno));
242 } 209
243/* Would be nice to have an autoconf check for this. It appears that
244 * these functions are both using the same calling syntax, just one
245 * of them needs extra valus passed.
246 */
247#if defined(__osf__) || defined(hpux) || defined(sgi) || defined(NeXT) || \
248 defined(__sun__) || defined(__linux__) || defined(SVR4) || \
249 defined(__FreeBSD__) || defined(__OpenBSD__) || \
250 defined(WIN32) /* ---win32 add this here */ || \
251 defined(__GNU__) /* HURD */
252 { 210 {
253#ifdef WIN32
254 char tmp = 1;
255#else
256 int tmp =1; 211 int tmp = 1;
257#endif
258 212
259 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_REUSEADDR, &tmp, sizeof(tmp))) { 213 if (setsockopt (init_sockets[0].fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof (tmp)))
260 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror(errno));
261 }
262 }
263#else
264 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_REUSEADDR,(char *)NULL,0)) {
265 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror(errno)); 214 LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno));
266 } 215 }
267#endif
268 216
269 if (bind(init_sockets[0].fd,(struct sockaddr *)&insock,sizeof(insock)) == (-1)) { 217 if (bind (init_sockets[0].fd, (struct sockaddr *) &insock, sizeof (insock)) == (-1))
218 {
270 LOG(llevError, "Cannot bind socket to port %d: %s\n", ntohs(insock.sin_port), strerror(errno)); 219 LOG (llevError, "Cannot bind socket to port %d: %s\n", ntohs (insock.sin_port), strerror (errno));
271#ifdef WIN32 /* ***win32: close() -> closesocket() */
272 shutdown(init_sockets[0].fd,SD_BOTH);
273 closesocket(init_sockets[0].fd);
274#else
275 close(init_sockets[0].fd); 220 close (init_sockets[0].fd);
276#endif /* win32 */
277 exit(-1); 221 exit (-1);
278 } 222 }
223
279 if (listen(init_sockets[0].fd,5) == (-1)) { 224 if (listen (init_sockets[0].fd, 5) == (-1))
225 {
280 LOG(llevError, "Cannot listen on socket: %s\n", strerror(errno)); 226 LOG (llevError, "Cannot listen on socket: %s\n", strerror (errno));
281#ifdef WIN32 /* ***win32: close() -> closesocket() */
282 shutdown(init_sockets[0].fd,SD_BOTH);
283 closesocket(init_sockets[0].fd);
284#else
285 close(init_sockets[0].fd); 227 close (init_sockets[0].fd);
286#endif /* win32 */
287 exit(-1); 228 exit (-1);
288 } 229 }
230
289 init_sockets[0].status=Ns_Add; 231 init_sockets[0].status = Ns_Add;
290 read_client_images(); 232 read_client_images ();
291} 233}
292 234
293 235
294/******************************************************************************* 236/*******************************************************************************
295 * 237 *
296 * Start of functions dealing with freeing of the data. 238 * Start of functions dealing with freeing of the data.
297 * 239 *
298 ******************************************************************************/ 240 ******************************************************************************/
299 241
300/** Free's all the memory that ericserver allocates. */ 242/** Free's all the memory that ericserver allocates. */
243void
301void free_all_newserver(void) 244free_all_newserver (void)
302{ 245{
303 LOG(llevDebug,"Freeing all new client/server information.\n"); 246 LOG (llevDebug, "Freeing all new client/server information.\n");
304 free_socket_images(); 247 free_socket_images ();
305 free(init_sockets); 248 free (init_sockets);
306} 249}
307 250
308/** 251/**
309 * Frees a socket. 252 * Frees a socket.
310 * Basically, all we need to do here is free all data structures that 253 * Basically, all we need to do here is free all data structures that
311 * might be associated with the socket. It is up to the caller to 254 * might be associated with the socket. It is up to the caller to
312 * update the list 255 * update the list
313 */ 256 */
314 257
258void
315void free_newsocket(NewSocket *ns) 259free_newsocket (NewSocket *ns)
316{ 260{
317#ifdef WIN32 /* ***win32: closesocket in windows style */ 261 close (ns->fd);
318 shutdown(ns->fd,SD_BOTH);
319 if (closesocket(ns->fd)) {
320#else
321 if (close(ns->fd)) {
322#endif /* win32 */
323 262
324#ifdef ESRV_DEBUG
325 LOG(llevDebug,"Error closing socket %d\n", ns->fd);
326#endif
327 }
328 if (ns->stats.range) 263 if (ns->stats.range)
329 free(ns->stats.range); 264 free (ns->stats.range);
265
330 if (ns->stats.title) 266 if (ns->stats.title)
331 free(ns->stats.title); 267 free (ns->stats.title);
332 if (ns->comment) 268
333 free(ns->comment);
334 free(ns->host); 269 free (ns->host);
335 free(ns->inbuf.buf);
336} 270}
337 271
338/** Sends the 'goodbye' command to the player, and closes connection. */ 272/** Sends the 'goodbye' command to the player, and closes connection. */
273void
339void final_free_player(player *pl) 274final_free_player (player *pl)
340{ 275{
341 cs_write_string(&pl->socket, "goodbye", 8); 276 pl->socket.send_packet ("goodbye");
342 free_newsocket(&pl->socket); 277 free_newsocket (&pl->socket);
343 free_player(pl); 278 free_player (pl);
344} 279}
345 280

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