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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 1.14 by root, Thu Dec 14 01:21:58 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 packet sl;
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 }
149
170#ifdef CS_LOGSTATS 150#ifdef CS_LOGSTATS
171 if (socket_info.nconns>cst_tot.max_conn) 151 if (socket_info.nconns > cst_tot.max_conn)
172 cst_tot.max_conn = socket_info.nconns; 152 cst_tot.max_conn = socket_info.nconns;
173 if (socket_info.nconns>cst_lst.max_conn) 153 if (socket_info.nconns > cst_lst.max_conn)
174 cst_lst.max_conn = socket_info.nconns; 154 cst_lst.max_conn = socket_info.nconns;
175#endif 155#endif
176} 156}
177 157
178 158
179/** This sets up the socket and reads all the image information into memory. */ 159/** This sets up the socket and reads all the image information into memory. */
160void
180void init_ericserver(void) 161init_ericserver (void)
181{ 162{
182 struct sockaddr_in insock; 163 struct sockaddr_in insock;
183 struct protoent *protox; 164 struct protoent *protox;
184 struct linger linger_opt; 165 struct linger linger_opt;
185 166
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); 167 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 */
205 168
206 socket_info.timeout.tv_sec = 0; 169 socket_info.timeout.tv_sec = 0;
207 socket_info.timeout.tv_usec = 0; 170 socket_info.timeout.tv_usec = 0;
208 socket_info.nconns=0; 171 socket_info.nconns = 0;
209 172
210#ifdef CS_LOGSTATS 173#ifdef CS_LOGSTATS
211 memset(&cst_tot, 0, sizeof(CS_Stats)); 174 memset (&cst_tot, 0, sizeof (CS_Stats));
212 memset(&cst_lst, 0, sizeof(CS_Stats)); 175 memset (&cst_lst, 0, sizeof (CS_Stats));
213 cst_tot.time_start=time(NULL); 176 cst_tot.time_start = time (NULL);
214 cst_lst.time_start=time(NULL); 177 cst_lst.time_start = time (NULL);
215#endif 178#endif
216 179
217 LOG(llevDebug,"Initialize new client/server data\n"); 180 LOG (llevDebug, "Initialize new client/server data\n");
218 socket_info.nconns = 1; 181 socket_info.nconns = 1;
219 init_sockets = (NewSocket *) malloc(sizeof(NewSocket)); 182 init_sockets = (NewSocket *) malloc (sizeof (NewSocket));
220 init_sockets[0].faces_sent = NULL; /* unused */ 183 init_sockets[0].faces_sent = NULL; /* unused */
221 socket_info.allocated_sockets=1; 184 socket_info.allocated_sockets = 1;
222 185
223 protox = getprotobyname("tcp"); 186 protox = getprotobyname ("tcp");
224 if (protox==NULL) { 187 if (protox == NULL)
188 {
225 LOG(llevError,"init_ericserver: Error getting protox\n"); 189 LOG (llevError, "init_ericserver: Error getting protox\n");
226 return; 190 return;
227 } 191 }
192
228 init_sockets[0].fd = socket(PF_INET, SOCK_STREAM, protox->p_proto); 193 init_sockets[0].fd = socket (PF_INET, SOCK_STREAM, protox->p_proto);
229 if (init_sockets[0].fd == -1) { 194 if (init_sockets[0].fd == -1)
195 {
230 LOG(llevError, "Cannot create socket: %s\n", strerror(errno)); 196 LOG (llevError, "Cannot create socket: %s\n", strerror (errno));
231 exit(-1); 197 exit (-1);
232 } 198 }
199
233 insock.sin_family = AF_INET; 200 insock.sin_family = AF_INET;
234 insock.sin_port = htons(settings.csport); 201 insock.sin_port = htons (settings.csport);
235 insock.sin_addr.s_addr = htonl(INADDR_ANY); 202 insock.sin_addr.s_addr = htonl (INADDR_ANY);
236 203
237 linger_opt.l_onoff = 0; 204 linger_opt.l_onoff = 0;
238 linger_opt.l_linger = 0; 205 linger_opt.l_linger = 0;
239 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_LINGER,(char *) &linger_opt, 206 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)); 207 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno));
242 } 208
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 { 209 {
253#ifdef WIN32
254 char tmp = 1;
255#else
256 int tmp =1; 210 int tmp = 1;
257#endif
258 211
259 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_REUSEADDR, &tmp, sizeof(tmp))) { 212 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)); 213 LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno));
266 } 214 }
267#endif
268 215
269 if (bind(init_sockets[0].fd,(struct sockaddr *)&insock,sizeof(insock)) == (-1)) { 216 if (bind (init_sockets[0].fd, (struct sockaddr *) &insock, sizeof (insock)) == (-1))
217 {
270 LOG(llevError, "Cannot bind socket to port %d: %s\n", ntohs(insock.sin_port), strerror(errno)); 218 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); 219 close (init_sockets[0].fd);
276#endif /* win32 */
277 exit(-1); 220 exit (-1);
278 } 221 }
222
279 if (listen(init_sockets[0].fd,5) == (-1)) { 223 if (listen (init_sockets[0].fd, 5) == (-1))
224 {
280 LOG(llevError, "Cannot listen on socket: %s\n", strerror(errno)); 225 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); 226 close (init_sockets[0].fd);
286#endif /* win32 */
287 exit(-1); 227 exit (-1);
288 } 228 }
229
289 init_sockets[0].status=Ns_Add; 230 init_sockets[0].status = Ns_Add;
290 read_client_images(); 231 read_client_images ();
291} 232}
292 233
293 234
294/******************************************************************************* 235/*******************************************************************************
295 * 236 *
296 * Start of functions dealing with freeing of the data. 237 * Start of functions dealing with freeing of the data.
297 * 238 *
298 ******************************************************************************/ 239 ******************************************************************************/
299 240
300/** Free's all the memory that ericserver allocates. */ 241/** Free's all the memory that ericserver allocates. */
242void
301void free_all_newserver(void) 243free_all_newserver (void)
302{ 244{
303 LOG(llevDebug,"Freeing all new client/server information.\n"); 245 LOG (llevDebug, "Freeing all new client/server information.\n");
304 free_socket_images(); 246 free_socket_images ();
305 free(init_sockets); 247 free (init_sockets);
306} 248}
307 249
308/** 250/**
309 * Frees a socket. 251 * Frees a socket.
310 * Basically, all we need to do here is free all data structures that 252 * 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 253 * might be associated with the socket. It is up to the caller to
312 * update the list 254 * update the list
313 */ 255 */
314 256
257void
315void free_newsocket(NewSocket *ns) 258free_newsocket (NewSocket *ns)
316{ 259{
317#ifdef WIN32 /* ***win32: closesocket in windows style */ 260 close (ns->fd);
318 shutdown(ns->fd,SD_BOTH);
319 if (closesocket(ns->fd)) {
320#else
321 if (close(ns->fd)) {
322#endif /* win32 */
323 261
324#ifdef ESRV_DEBUG
325 LOG(llevDebug,"Error closing socket %d\n", ns->fd);
326#endif
327 }
328 if (ns->stats.range) 262 if (ns->stats.range)
329 free(ns->stats.range); 263 free (ns->stats.range);
264
330 if (ns->stats.title) 265 if (ns->stats.title)
331 free(ns->stats.title); 266 free (ns->stats.title);
332 if (ns->comment) 267
333 free(ns->comment);
334 free(ns->host); 268 free (ns->host);
335 free(ns->inbuf.buf);
336} 269}
337 270
338/** Sends the 'goodbye' command to the player, and closes connection. */ 271/** Sends the 'goodbye' command to the player, and closes connection. */
272void
339void final_free_player(player *pl) 273final_free_player (player *pl)
340{ 274{
341 cs_write_string(&pl->socket, "goodbye", 8); 275 pl->socket.send_packet ("goodbye");
342 free_newsocket(&pl->socket); 276 free_newsocket (&pl->socket);
343 free_player(pl); 277 free_player (pl);
344} 278}
345 279

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