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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 1.11 by root, Wed Dec 13 02:55:51 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
… …
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; 64 SockList sl;
73 char buf[256]; 65 char buf[256];
74 int bufsize=65535; /*Supposed absolute upper limit */ 66 int bufsize = 65535; /*Supposed absolute upper limit */
75 int oldbufsize; 67 int oldbufsize;
76 int buflen=sizeof(int); 68 int buflen = sizeof (int);
77 69
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) { 70 if (fcntl (ns->fd, F_SETFL, O_NONBLOCK) == -1)
85 LOG(llevError,"InitConnection: Error on fcntl.\n"); 71 LOG (llevError, "InitConnection: Error on fcntl.\n");
86 }
87#endif /* end win32 */
88 72
89 if (getsockopt(ns->fd,SOL_SOCKET,SO_SNDBUF, (char*)&oldbufsize, (socklen_t*) &buflen)==-1) 73 if (getsockopt (ns->fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen) == -1)
90 oldbufsize=0; 74 oldbufsize = 0;
75
91 if (oldbufsize<bufsize) { 76 if (oldbufsize < bufsize)
77 if (setsockopt (ns->fd, SOL_SOCKET, SO_SNDBUF, (char *) &bufsize, sizeof (&bufsize)))
78 LOG (llevError, "InitConnection: setsockopt unable to set output buf size to %d\n", bufsize);
79
80 buflen = sizeof (oldbufsize);
81 getsockopt (ns->fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen);
92#ifdef ESRV_DEBUG 82#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); 83 LOG (llevDebug, "Socket buffer size now %d bytes\n", oldbufsize);
103#endif 84#endif
104 85
105 ns->faceset = 0; 86 ns->faceset = 0;
106 ns->facecache = 0; 87 ns->facecache = 0;
107 ns->image2 = 0; 88 ns->image2 = 0;
108 ns->sound = 0; 89 ns->sound = 0;
109 ns->exp64 = 0; 90 ns->exp64 = 0;
110 ns->monitor_spells = 0; 91 ns->monitor_spells = 0;
111 ns->mapmode = Map0Cmd; 92 ns->mapmode = Map0Cmd;
112 ns->darkness = 1; 93 ns->darkness = 1;
113 ns->status = Ns_Add; 94 ns->status = Ns_Add;
114 ns->comment = NULL;
115 ns->old_mode = (Old_Mode) 0;
116 ns->mapx = 11; 95 ns->mapx = 11;
117 ns->mapy = 11; 96 ns->mapy = 11;
118 ns->newmapcmd= 0; 97 ns->newmapcmd = 0;
119 ns->itemcmd = 1; /* Default is version item1 command*/ 98 ns->itemcmd = 1; /* Default is version item1 command */
120 ns->ext_mapinfos=0; /*extendedmapinfo datas*/ 99 ns->ext_mapinfos = 0; /*extendedmapinfo datas */
121 ns->EMI_smooth=0; 100 ns->EMI_smooth = 0;
122 ns->look_position = 0; 101 ns->look_position = 0;
123 ns->update_look = 0; 102 ns->update_look = 0;
124 ns->has_readable_type = 0; 103 ns->has_readable_type = 0;
125 ns->supported_readables = 0; 104 ns->supported_readables = 0;
126 ns->monitor_spells = 0; 105 ns->monitor_spells = 0;
127 ns->mapinfocmd = 0; 106 ns->mapinfocmd = 0;
128 ns->extcmd = 0; 107 ns->extcmd = 0;
108 ns->extmap = 0;
129 109
130 /* we should really do some checking here - if total clients overflows 110 /* 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 111 * we need to do something more intelligent, because client id's will start
132 * duplicating (not likely in normal cases, but malicous attacks that 112 * duplicating (not likely in normal cases, but malicous attacks that
133 * just open and close connections could get this total up. 113 * just open and close connections could get this total up.
134 */ 114 */
135 ns->inbuf.len=0; 115 ns->inbuf.len = 0;
136 ns->inbuf.buf= (unsigned char*) malloc( sizeof( unsigned char ) * MAXSOCKBUF ); 116 ns->inbuf.buf = (unsigned char *) malloc (sizeof (unsigned char) * MAXSOCKBUF);
137 /* Basic initialization. Needed because we do a check in 117 /* Basic initialization. Needed because we do a check in
138 * HandleClient for oldsocketmode without checking the 118 * HandleClient for oldsocketmode without checking the
139 * length of data. 119 * length of data.
140 */ 120 */
141 memset( ns->inbuf.buf, 0, sizeof( unsigned char ) * MAXSOCKBUF ); 121 memset (ns->inbuf.buf, 0, sizeof (unsigned char) * MAXSOCKBUF);
142 memset(&ns->lastmap,0,sizeof(struct Map)); 122 memset (&ns->lastmap, 0, sizeof (struct Map));
143 memset(ns->faces_sent, 0, ns->faces_sent_len*sizeof(*ns->faces_sent)); 123 memset (ns->faces_sent, 0, ns->faces_sent_len * sizeof (*ns->faces_sent));
144 memset(&ns->anims_sent,0,sizeof(ns->anims_sent)); 124 memset (&ns->anims_sent, 0, sizeof (ns->anims_sent));
145 memset(&ns->stats,0,sizeof(struct statsinfo)); 125 memset (&ns->stats, 0, sizeof (struct statsinfo));
146 /* Do this so we don't send a face command for the client for 126 /* 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 127 * this face. Face 0 is sent to the client to say clear
148 * face information. 128 * face information.
149 */ 129 */
150 ns->faces_sent[0] = NS_FACESENT_FACE; 130 ns->faces_sent[0] = NS_FACESENT_FACE;
151 131
152 ns->outputbuffer.start=0; 132 ns->outputbuffer.start = 0;
153 ns->outputbuffer.len=0; 133 ns->outputbuffer.len = 0;
154 ns->can_write=1; 134 ns->can_write = 1;
155 ns->password_fails = 0; 135 ns->password_fails = 0;
156 136
157 ns->current_map = 0; 137 ns->current_map = 0;
138 ns->current_x = 0;
139 ns->current_y = 0;
140 ns->client[0] = 0;
141 ns->buggy_mapscroll = 0;
158 142
159 ns->sent_scroll=0; 143 ns->sent_scroll = 0;
160 ns->host=strdup_local(from_ip); 144 ns->host = strdup_local (from_ip);
161 sprintf((char*)buf, "version %d %d %s\n", VERSION_CS,VERSION_SC, VERSION_INFO); 145 sprintf ((char *) buf, "version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
162 sl.buf=(unsigned char*)buf; 146 sl.buf = (unsigned char *) buf;
163 sl.len=strlen((char*)buf); 147 sl.len = strlen ((char *) buf);
164 Send_With_Handling(ns, &sl); 148 Send_With_Handling (ns, &sl);
165#ifdef CS_LOGSTATS 149#ifdef CS_LOGSTATS
166 if (socket_info.nconns>cst_tot.max_conn) 150 if (socket_info.nconns > cst_tot.max_conn)
167 cst_tot.max_conn = socket_info.nconns; 151 cst_tot.max_conn = socket_info.nconns;
168 if (socket_info.nconns>cst_lst.max_conn) 152 if (socket_info.nconns > cst_lst.max_conn)
169 cst_lst.max_conn = socket_info.nconns; 153 cst_lst.max_conn = socket_info.nconns;
170#endif 154#endif
171} 155}
172 156
173 157
174/** This sets up the socket and reads all the image information into memory. */ 158/** This sets up the socket and reads all the image information into memory. */
159void
175void init_ericserver(void) 160init_ericserver (void)
176{ 161{
177 struct sockaddr_in insock; 162 struct sockaddr_in insock;
178 struct protoent *protox; 163 struct protoent *protox;
179 struct linger linger_opt; 164 struct linger linger_opt;
180 165
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
190#ifdef HAVE_SYSCONF
191 socket_info.max_filedescriptor = sysconf(_SC_OPEN_MAX); 166 socket_info.max_filedescriptor = sysconf (_SC_OPEN_MAX);
192#else
193# ifdef HAVE_GETDTABLESIZE
194 socket_info.max_filedescriptor = getdtablesize();
195# else
196 "Unable to find usable function to get max filedescriptors";
197# endif
198#endif
199#endif /* win32 */
200 167
201 socket_info.timeout.tv_sec = 0; 168 socket_info.timeout.tv_sec = 0;
202 socket_info.timeout.tv_usec = 0; 169 socket_info.timeout.tv_usec = 0;
203 socket_info.nconns=0; 170 socket_info.nconns = 0;
204 171
205#ifdef CS_LOGSTATS 172#ifdef CS_LOGSTATS
206 memset(&cst_tot, 0, sizeof(CS_Stats)); 173 memset (&cst_tot, 0, sizeof (CS_Stats));
207 memset(&cst_lst, 0, sizeof(CS_Stats)); 174 memset (&cst_lst, 0, sizeof (CS_Stats));
208 cst_tot.time_start=time(NULL); 175 cst_tot.time_start = time (NULL);
209 cst_lst.time_start=time(NULL); 176 cst_lst.time_start = time (NULL);
210#endif 177#endif
211 178
212 LOG(llevDebug,"Initialize new client/server data\n"); 179 LOG (llevDebug, "Initialize new client/server data\n");
213 socket_info.nconns = 1; 180 socket_info.nconns = 1;
214 init_sockets = (NewSocket *) malloc(sizeof(NewSocket)); 181 init_sockets = (NewSocket *) malloc (sizeof (NewSocket));
215 init_sockets[0].faces_sent = NULL; /* unused */ 182 init_sockets[0].faces_sent = NULL; /* unused */
216 socket_info.allocated_sockets=1; 183 socket_info.allocated_sockets = 1;
217 184
218 protox = getprotobyname("tcp"); 185 protox = getprotobyname ("tcp");
219 if (protox==NULL) { 186 if (protox == NULL)
187 {
220 LOG(llevError,"init_ericserver: Error getting protox\n"); 188 LOG (llevError, "init_ericserver: Error getting protox\n");
221 return; 189 return;
222 } 190 }
191
223 init_sockets[0].fd = socket(PF_INET, SOCK_STREAM, protox->p_proto); 192 init_sockets[0].fd = socket (PF_INET, SOCK_STREAM, protox->p_proto);
224 if (init_sockets[0].fd == -1) { 193 if (init_sockets[0].fd == -1)
194 {
225 LOG(llevError, "Cannot create socket: %s\n", strerror_local(errno)); 195 LOG (llevError, "Cannot create socket: %s\n", strerror (errno));
226 exit(-1); 196 exit (-1);
227 } 197 }
198
228 insock.sin_family = AF_INET; 199 insock.sin_family = AF_INET;
229 insock.sin_port = htons(settings.csport); 200 insock.sin_port = htons (settings.csport);
230 insock.sin_addr.s_addr = htonl(INADDR_ANY); 201 insock.sin_addr.s_addr = htonl (INADDR_ANY);
231 202
232 linger_opt.l_onoff = 0; 203 linger_opt.l_onoff = 0;
233 linger_opt.l_linger = 0; 204 linger_opt.l_linger = 0;
234 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_LINGER,(char *) &linger_opt, 205 if (setsockopt (init_sockets[0].fd, SOL_SOCKET, SO_LINGER, (char *) &linger_opt, sizeof (struct linger)))
235 sizeof(struct linger))) {
236 LOG(llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror_local(errno)); 206 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno));
237 } 207
238/* 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
240 * of them needs extra valus passed.
241 */
242#if defined(__osf__) || defined(hpux) || defined(sgi) || defined(NeXT) || \
243 defined(__sun__) || defined(__linux__) || defined(SVR4) || \
244 defined(__FreeBSD__) || defined(__OpenBSD__) || \
245 defined(WIN32) /* ---win32 add this here */ || \
246 defined(__GNU__) /* HURD */
247 { 208 {
248#ifdef WIN32
249 char tmp = 1; 209 int tmp = 1;
250#else
251 int tmp =1;
252#endif
253 210
254 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_REUSEADDR, &tmp, sizeof(tmp))) { 211 if (setsockopt (init_sockets[0].fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof (tmp)))
255 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(errno)); 212 LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno));
256 }
257 } 213 }
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
263 214
264 if (bind(init_sockets[0].fd,(struct sockaddr *)&insock,sizeof(insock)) == (-1)) { 215 if (bind (init_sockets[0].fd, (struct sockaddr *) &insock, sizeof (insock)) == (-1))
216 {
265 LOG(llevError, "Cannot bind socket to port %d: %s\n", ntohs(insock.sin_port), strerror_local(errno)); 217 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); 218 close (init_sockets[0].fd);
271#endif /* win32 */ 219 exit (-1);
272 exit(-1);
273 } 220 }
221
274 if (listen(init_sockets[0].fd,5) == (-1)) { 222 if (listen (init_sockets[0].fd, 5) == (-1))
223 {
275 LOG(llevError, "Cannot listen on socket: %s\n", strerror_local(errno)); 224 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); 225 close (init_sockets[0].fd);
281#endif /* win32 */ 226 exit (-1);
282 exit(-1);
283 } 227 }
228
284 init_sockets[0].status=Ns_Add; 229 init_sockets[0].status = Ns_Add;
285 read_client_images(); 230 read_client_images ();
286} 231}
287 232
288 233
289/******************************************************************************* 234/*******************************************************************************
290 * 235 *
291 * Start of functions dealing with freeing of the data. 236 * Start of functions dealing with freeing of the data.
292 * 237 *
293 ******************************************************************************/ 238 ******************************************************************************/
294 239
295/** Free's all the memory that ericserver allocates. */ 240/** Free's all the memory that ericserver allocates. */
241void
296void free_all_newserver(void) 242free_all_newserver (void)
297{ 243{
298 LOG(llevDebug,"Freeing all new client/server information.\n"); 244 LOG (llevDebug, "Freeing all new client/server information.\n");
299 free_socket_images(); 245 free_socket_images ();
300 free(init_sockets); 246 free (init_sockets);
301} 247}
302 248
303/** 249/**
304 * Frees a socket. 250 * Frees a socket.
305 * Basically, all we need to do here is free all data structures that 251 * 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 252 * might be associated with the socket. It is up to the caller to
307 * update the list 253 * update the list
308 */ 254 */
309 255
256void
310void free_newsocket(NewSocket *ns) 257free_newsocket (NewSocket *ns)
311{ 258{
312#ifdef WIN32 /* ***win32: closesocket in windows style */ 259 close (ns->fd);
313 shutdown(ns->fd,SD_BOTH);
314 if (closesocket(ns->fd)) {
315#else
316 if (close(ns->fd)) {
317#endif /* win32 */
318 260
319#ifdef ESRV_DEBUG
320 LOG(llevDebug,"Error closing socket %d\n", ns->fd);
321#endif
322 }
323 if (ns->stats.range) 261 if (ns->stats.range)
324 free(ns->stats.range); 262 free (ns->stats.range);
263
325 if (ns->stats.title) 264 if (ns->stats.title)
326 free(ns->stats.title); 265 free (ns->stats.title);
327 if (ns->comment) 266
328 free(ns->comment);
329 free(ns->host); 267 free (ns->host);
330 free(ns->inbuf.buf); 268 free (ns->inbuf.buf);
331} 269}
332 270
333/** Sends the 'goodbye' command to the player, and closes connection. */ 271/** Sends the 'goodbye' command to the player, and closes connection. */
272void
334void final_free_player(player *pl) 273final_free_player (player *pl)
335{ 274{
336 cs_write_string(&pl->socket, "goodbye", 8); 275 cs_write_string (&pl->socket, "goodbye", 8);
337 free_newsocket(&pl->socket); 276 free_newsocket (&pl->socket);
338 free_player(pl); 277 free_player (pl);
339} 278}
340

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