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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 1.13 by root, Thu Dec 14 01:12:35 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
… …
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;
106 ns->extmap = 0;
129 107
130 /* we should really do some checking here - if total clients overflows 108 /* 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 109 * we need to do something more intelligent, because client id's will start
132 * duplicating (not likely in normal cases, but malicous attacks that 110 * duplicating (not likely in normal cases, but malicous attacks that
133 * just open and close connections could get this total up. 111 * just open and close connections could get this total up.
134 */ 112 */
135 ns->inbuf.len=0; 113 ns->inbuf_len = 0;
136 ns->inbuf.buf= (unsigned char*) malloc( sizeof( unsigned char ) * MAXSOCKBUF ); 114
137 /* Basic initialization. Needed because we do a check in 115 /* Basic initialization. Needed because we do a check in
138 * HandleClient for oldsocketmode without checking the 116 * HandleClient for oldsocketmode without checking the
139 * length of data. 117 * length of data.
140 */ 118 */
141 memset( ns->inbuf.buf, 0, sizeof( unsigned char ) * MAXSOCKBUF );
142 memset(&ns->lastmap,0,sizeof(struct Map)); 119 memset (&ns->lastmap, 0, sizeof (struct Map));
143 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));
144 memset(&ns->anims_sent,0,sizeof(ns->anims_sent)); 121 memset (&ns->anims_sent, 0, sizeof (ns->anims_sent));
145 memset(&ns->stats,0,sizeof(struct statsinfo)); 122 memset (&ns->stats, 0, sizeof (struct statsinfo));
146 /* 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
147 * 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
148 * face information. 125 * face information.
149 */ 126 */
150 ns->faces_sent[0] = NS_FACESENT_FACE; 127 ns->faces_sent[0] = NS_FACESENT_FACE;
151 128
152 ns->outputbuffer.start=0; 129 ns->outputbuffer.start = 0;
153 ns->outputbuffer.len=0; 130 ns->outputbuffer.len = 0;
154 ns->can_write=1; 131 ns->can_write = 1;
155 ns->password_fails = 0; 132 ns->password_fails = 0;
156 133
157 ns->current_map = 0; 134 ns->current_map = 0;
158 ns->current_x = 0; 135 ns->current_x = 0;
159 ns->current_y = 0; 136 ns->current_y = 0;
137 ns->client[0] = 0;
138 ns->buggy_mapscroll = 0;
160 139
161 ns->sent_scroll=0; 140 ns->sent_scroll = 0;
162 ns->host=strdup_local(from_ip); 141 ns->host = strdup_local (from_ip);
142
143 {
144 SockList sl (MAXSOCKBUF);
145
163 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);
164 sl.buf=(unsigned char*)buf;
165 sl.len=strlen((char*)buf);
166 Send_With_Handling(ns, &sl); 147 Send_With_Handling (ns, &sl);
148 sl.free ();
149 }
150
167#ifdef CS_LOGSTATS 151#ifdef CS_LOGSTATS
168 if (socket_info.nconns>cst_tot.max_conn) 152 if (socket_info.nconns > cst_tot.max_conn)
169 cst_tot.max_conn = socket_info.nconns; 153 cst_tot.max_conn = socket_info.nconns;
170 if (socket_info.nconns>cst_lst.max_conn) 154 if (socket_info.nconns > cst_lst.max_conn)
171 cst_lst.max_conn = socket_info.nconns; 155 cst_lst.max_conn = socket_info.nconns;
172#endif 156#endif
173} 157}
174 158
175 159
176/** 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
177void init_ericserver(void) 162init_ericserver (void)
178{ 163{
179 struct sockaddr_in insock; 164 struct sockaddr_in insock;
180 struct protoent *protox; 165 struct protoent *protox;
181 struct linger linger_opt; 166 struct linger linger_opt;
182 167
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
192#ifdef HAVE_SYSCONF
193 socket_info.max_filedescriptor = sysconf(_SC_OPEN_MAX); 168 socket_info.max_filedescriptor = sysconf (_SC_OPEN_MAX);
194#else
195# ifdef HAVE_GETDTABLESIZE
196 socket_info.max_filedescriptor = getdtablesize();
197# else
198 "Unable to find usable function to get max filedescriptors";
199# endif
200#endif
201#endif /* win32 */
202 169
203 socket_info.timeout.tv_sec = 0; 170 socket_info.timeout.tv_sec = 0;
204 socket_info.timeout.tv_usec = 0; 171 socket_info.timeout.tv_usec = 0;
205 socket_info.nconns=0; 172 socket_info.nconns = 0;
206 173
207#ifdef CS_LOGSTATS 174#ifdef CS_LOGSTATS
208 memset(&cst_tot, 0, sizeof(CS_Stats)); 175 memset (&cst_tot, 0, sizeof (CS_Stats));
209 memset(&cst_lst, 0, sizeof(CS_Stats)); 176 memset (&cst_lst, 0, sizeof (CS_Stats));
210 cst_tot.time_start=time(NULL); 177 cst_tot.time_start = time (NULL);
211 cst_lst.time_start=time(NULL); 178 cst_lst.time_start = time (NULL);
212#endif 179#endif
213 180
214 LOG(llevDebug,"Initialize new client/server data\n"); 181 LOG (llevDebug, "Initialize new client/server data\n");
215 socket_info.nconns = 1; 182 socket_info.nconns = 1;
216 init_sockets = (NewSocket *) malloc(sizeof(NewSocket)); 183 init_sockets = (NewSocket *) malloc (sizeof (NewSocket));
217 init_sockets[0].faces_sent = NULL; /* unused */ 184 init_sockets[0].faces_sent = NULL; /* unused */
218 socket_info.allocated_sockets=1; 185 socket_info.allocated_sockets = 1;
219 186
220 protox = getprotobyname("tcp"); 187 protox = getprotobyname ("tcp");
221 if (protox==NULL) { 188 if (protox == NULL)
189 {
222 LOG(llevError,"init_ericserver: Error getting protox\n"); 190 LOG (llevError, "init_ericserver: Error getting protox\n");
223 return; 191 return;
224 } 192 }
193
225 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);
226 if (init_sockets[0].fd == -1) { 195 if (init_sockets[0].fd == -1)
196 {
227 LOG(llevError, "Cannot create socket: %s\n", strerror_local(errno)); 197 LOG (llevError, "Cannot create socket: %s\n", strerror (errno));
228 exit(-1); 198 exit (-1);
229 } 199 }
200
230 insock.sin_family = AF_INET; 201 insock.sin_family = AF_INET;
231 insock.sin_port = htons(settings.csport); 202 insock.sin_port = htons (settings.csport);
232 insock.sin_addr.s_addr = htonl(INADDR_ANY); 203 insock.sin_addr.s_addr = htonl (INADDR_ANY);
233 204
234 linger_opt.l_onoff = 0; 205 linger_opt.l_onoff = 0;
235 linger_opt.l_linger = 0; 206 linger_opt.l_linger = 0;
236 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)))
237 sizeof(struct linger))) {
238 LOG(llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror_local(errno)); 208 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno));
239 } 209
240/* 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
242 * of them needs extra valus passed.
243 */
244#if defined(__osf__) || defined(hpux) || defined(sgi) || defined(NeXT) || \
245 defined(__sun__) || defined(__linux__) || defined(SVR4) || \
246 defined(__FreeBSD__) || defined(__OpenBSD__) || \
247 defined(WIN32) /* ---win32 add this here */ || \
248 defined(__GNU__) /* HURD */
249 { 210 {
250#ifdef WIN32
251 char tmp = 1; 211 int tmp = 1;
252#else
253 int tmp =1;
254#endif
255 212
256 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)))
257 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(errno)); 214 LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno));
258 }
259 } 215 }
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
265 216
266 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 {
267 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));
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); 220 close (init_sockets[0].fd);
273#endif /* win32 */ 221 exit (-1);
274 exit(-1);
275 } 222 }
223
276 if (listen(init_sockets[0].fd,5) == (-1)) { 224 if (listen (init_sockets[0].fd, 5) == (-1))
225 {
277 LOG(llevError, "Cannot listen on socket: %s\n", strerror_local(errno)); 226 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); 227 close (init_sockets[0].fd);
283#endif /* win32 */ 228 exit (-1);
284 exit(-1);
285 } 229 }
230
286 init_sockets[0].status=Ns_Add; 231 init_sockets[0].status = Ns_Add;
287 read_client_images(); 232 read_client_images ();
288} 233}
289 234
290 235
291/******************************************************************************* 236/*******************************************************************************
292 * 237 *
293 * Start of functions dealing with freeing of the data. 238 * Start of functions dealing with freeing of the data.
294 * 239 *
295 ******************************************************************************/ 240 ******************************************************************************/
296 241
297/** Free's all the memory that ericserver allocates. */ 242/** Free's all the memory that ericserver allocates. */
243void
298void free_all_newserver(void) 244free_all_newserver (void)
299{ 245{
300 LOG(llevDebug,"Freeing all new client/server information.\n"); 246 LOG (llevDebug, "Freeing all new client/server information.\n");
301 free_socket_images(); 247 free_socket_images ();
302 free(init_sockets); 248 free (init_sockets);
303} 249}
304 250
305/** 251/**
306 * Frees a socket. 252 * Frees a socket.
307 * 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
308 * 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
309 * update the list 255 * update the list
310 */ 256 */
311 257
258void
312void free_newsocket(NewSocket *ns) 259free_newsocket (NewSocket *ns)
313{ 260{
314#ifdef WIN32 /* ***win32: closesocket in windows style */ 261 close (ns->fd);
315 shutdown(ns->fd,SD_BOTH);
316 if (closesocket(ns->fd)) {
317#else
318 if (close(ns->fd)) {
319#endif /* win32 */
320 262
321#ifdef ESRV_DEBUG
322 LOG(llevDebug,"Error closing socket %d\n", ns->fd);
323#endif
324 }
325 if (ns->stats.range) 263 if (ns->stats.range)
326 free(ns->stats.range); 264 free (ns->stats.range);
265
327 if (ns->stats.title) 266 if (ns->stats.title)
328 free(ns->stats.title); 267 free (ns->stats.title);
329 if (ns->comment) 268
330 free(ns->comment);
331 free(ns->host); 269 free (ns->host);
332 free(ns->inbuf.buf);
333} 270}
334 271
335/** Sends the 'goodbye' command to the player, and closes connection. */ 272/** Sends the 'goodbye' command to the player, and closes connection. */
273void
336void final_free_player(player *pl) 274final_free_player (player *pl)
337{ 275{
338 cs_write_string(&pl->socket, "goodbye", 8); 276 pl->socket.send_packet ("goodbye");
339 free_newsocket(&pl->socket); 277 free_newsocket (&pl->socket);
340 free_player(pl); 278 free_player (pl);
341} 279}
342 280

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