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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 1.13 by root, Thu Dec 14 01:12:35 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
… …
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;
137 ns->client[0] = 0;
138 ns->buggy_mapscroll = 0;
161 139
162 ns->sent_scroll=0; 140 ns->sent_scroll = 0;
163 ns->host=strdup_local(from_ip); 141 ns->host = strdup_local (from_ip);
142
143 {
144 SockList sl (MAXSOCKBUF);
145
164 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);
165 sl.buf=(unsigned char*)buf;
166 sl.len=strlen((char*)buf);
167 Send_With_Handling(ns, &sl); 147 Send_With_Handling (ns, &sl);
148 sl.free ();
149 }
150
168#ifdef CS_LOGSTATS 151#ifdef CS_LOGSTATS
169 if (socket_info.nconns>cst_tot.max_conn) 152 if (socket_info.nconns > cst_tot.max_conn)
170 cst_tot.max_conn = socket_info.nconns; 153 cst_tot.max_conn = socket_info.nconns;
171 if (socket_info.nconns>cst_lst.max_conn) 154 if (socket_info.nconns > cst_lst.max_conn)
172 cst_lst.max_conn = socket_info.nconns; 155 cst_lst.max_conn = socket_info.nconns;
173#endif 156#endif
174} 157}
175 158
176 159
177/** 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
178void init_ericserver(void) 162init_ericserver (void)
179{ 163{
180 struct sockaddr_in insock; 164 struct sockaddr_in insock;
181 struct protoent *protox; 165 struct protoent *protox;
182 struct linger linger_opt; 166 struct linger linger_opt;
183 167
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
193#ifdef HAVE_SYSCONF
194 socket_info.max_filedescriptor = sysconf(_SC_OPEN_MAX); 168 socket_info.max_filedescriptor = sysconf (_SC_OPEN_MAX);
195#else
196# ifdef HAVE_GETDTABLESIZE
197 socket_info.max_filedescriptor = getdtablesize();
198# else
199 "Unable to find usable function to get max filedescriptors";
200# endif
201#endif
202#endif /* win32 */
203 169
204 socket_info.timeout.tv_sec = 0; 170 socket_info.timeout.tv_sec = 0;
205 socket_info.timeout.tv_usec = 0; 171 socket_info.timeout.tv_usec = 0;
206 socket_info.nconns=0; 172 socket_info.nconns = 0;
207 173
208#ifdef CS_LOGSTATS 174#ifdef CS_LOGSTATS
209 memset(&cst_tot, 0, sizeof(CS_Stats)); 175 memset (&cst_tot, 0, sizeof (CS_Stats));
210 memset(&cst_lst, 0, sizeof(CS_Stats)); 176 memset (&cst_lst, 0, sizeof (CS_Stats));
211 cst_tot.time_start=time(NULL); 177 cst_tot.time_start = time (NULL);
212 cst_lst.time_start=time(NULL); 178 cst_lst.time_start = time (NULL);
213#endif 179#endif
214 180
215 LOG(llevDebug,"Initialize new client/server data\n"); 181 LOG (llevDebug, "Initialize new client/server data\n");
216 socket_info.nconns = 1; 182 socket_info.nconns = 1;
217 init_sockets = (NewSocket *) malloc(sizeof(NewSocket)); 183 init_sockets = (NewSocket *) malloc (sizeof (NewSocket));
218 init_sockets[0].faces_sent = NULL; /* unused */ 184 init_sockets[0].faces_sent = NULL; /* unused */
219 socket_info.allocated_sockets=1; 185 socket_info.allocated_sockets = 1;
220 186
221 protox = getprotobyname("tcp"); 187 protox = getprotobyname ("tcp");
222 if (protox==NULL) { 188 if (protox == NULL)
189 {
223 LOG(llevError,"init_ericserver: Error getting protox\n"); 190 LOG (llevError, "init_ericserver: Error getting protox\n");
224 return; 191 return;
225 } 192 }
193
226 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);
227 if (init_sockets[0].fd == -1) { 195 if (init_sockets[0].fd == -1)
196 {
228 LOG(llevError, "Cannot create socket: %s\n", strerror_local(errno)); 197 LOG (llevError, "Cannot create socket: %s\n", strerror (errno));
229 exit(-1); 198 exit (-1);
230 } 199 }
200
231 insock.sin_family = AF_INET; 201 insock.sin_family = AF_INET;
232 insock.sin_port = htons(settings.csport); 202 insock.sin_port = htons (settings.csport);
233 insock.sin_addr.s_addr = htonl(INADDR_ANY); 203 insock.sin_addr.s_addr = htonl (INADDR_ANY);
234 204
235 linger_opt.l_onoff = 0; 205 linger_opt.l_onoff = 0;
236 linger_opt.l_linger = 0; 206 linger_opt.l_linger = 0;
237 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)))
238 sizeof(struct linger))) {
239 LOG(llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror_local(errno)); 208 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno));
240 } 209
241/* 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
243 * of them needs extra valus passed.
244 */
245#if defined(__osf__) || defined(hpux) || defined(sgi) || defined(NeXT) || \
246 defined(__sun__) || defined(__linux__) || defined(SVR4) || \
247 defined(__FreeBSD__) || defined(__OpenBSD__) || \
248 defined(WIN32) /* ---win32 add this here */ || \
249 defined(__GNU__) /* HURD */
250 { 210 {
251#ifdef WIN32
252 char tmp = 1; 211 int tmp = 1;
253#else
254 int tmp =1;
255#endif
256 212
257 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)))
258 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(errno)); 214 LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno));
259 }
260 } 215 }
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
266 216
267 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 {
268 LOG(llevError, "Cannot bind socket to port %d: %s\n", ntohs(insock.sin_port), strerror_local(errno)); 219 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); 220 close (init_sockets[0].fd);
274#endif /* win32 */ 221 exit (-1);
275 exit(-1);
276 } 222 }
223
277 if (listen(init_sockets[0].fd,5) == (-1)) { 224 if (listen (init_sockets[0].fd, 5) == (-1))
225 {
278 LOG(llevError, "Cannot listen on socket: %s\n", strerror_local(errno)); 226 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); 227 close (init_sockets[0].fd);
284#endif /* win32 */ 228 exit (-1);
285 exit(-1);
286 } 229 }
230
287 init_sockets[0].status=Ns_Add; 231 init_sockets[0].status = Ns_Add;
288 read_client_images(); 232 read_client_images ();
289} 233}
290 234
291 235
292/******************************************************************************* 236/*******************************************************************************
293 * 237 *
294 * Start of functions dealing with freeing of the data. 238 * Start of functions dealing with freeing of the data.
295 * 239 *
296 ******************************************************************************/ 240 ******************************************************************************/
297 241
298/** Free's all the memory that ericserver allocates. */ 242/** Free's all the memory that ericserver allocates. */
243void
299void free_all_newserver(void) 244free_all_newserver (void)
300{ 245{
301 LOG(llevDebug,"Freeing all new client/server information.\n"); 246 LOG (llevDebug, "Freeing all new client/server information.\n");
302 free_socket_images(); 247 free_socket_images ();
303 free(init_sockets); 248 free (init_sockets);
304} 249}
305 250
306/** 251/**
307 * Frees a socket. 252 * Frees a socket.
308 * 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
309 * 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
310 * update the list 255 * update the list
311 */ 256 */
312 257
258void
313void free_newsocket(NewSocket *ns) 259free_newsocket (NewSocket *ns)
314{ 260{
315#ifdef WIN32 /* ***win32: closesocket in windows style */ 261 close (ns->fd);
316 shutdown(ns->fd,SD_BOTH);
317 if (closesocket(ns->fd)) {
318#else
319 if (close(ns->fd)) {
320#endif /* win32 */
321 262
322#ifdef ESRV_DEBUG
323 LOG(llevDebug,"Error closing socket %d\n", ns->fd);
324#endif
325 }
326 if (ns->stats.range) 263 if (ns->stats.range)
327 free(ns->stats.range); 264 free (ns->stats.range);
265
328 if (ns->stats.title) 266 if (ns->stats.title)
329 free(ns->stats.title); 267 free (ns->stats.title);
330 if (ns->comment) 268
331 free(ns->comment);
332 free(ns->host); 269 free (ns->host);
333 free(ns->inbuf.buf);
334} 270}
335 271
336/** Sends the 'goodbye' command to the player, and closes connection. */ 272/** Sends the 'goodbye' command to the player, and closes connection. */
273void
337void final_free_player(player *pl) 274final_free_player (player *pl)
338{ 275{
339 cs_write_string(&pl->socket, "goodbye", 8); 276 pl->socket.send_packet ("goodbye");
340 free_newsocket(&pl->socket); 277 free_newsocket (&pl->socket);
341 free_player(pl); 278 free_player (pl);
342} 279}
343 280

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