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Comparing deliantra/server/socket/init.C (file contents):
Revision 1.5 by root, Tue Aug 29 08:01:38 2006 UTC vs.
Revision 1.12 by root, Thu Dec 14 00:01:35 2006 UTC

1/*
2 * static char *rcsid_init_c =
3 * "$Id: init.C,v 1.5 2006/08/29 08:01:38 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; 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;
129 ns->extmap = 0; 108 ns->extmap = 0;
130 109
131 /* we should really do some checking here - if total clients overflows 110 /* 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 111 * we need to do something more intelligent, because client id's will start
133 * duplicating (not likely in normal cases, but malicous attacks that 112 * duplicating (not likely in normal cases, but malicous attacks that
134 * just open and close connections could get this total up. 113 * just open and close connections could get this total up.
135 */ 114 */
136 ns->inbuf.len=0; 115 ns->inbuf_len = 0;
137 ns->inbuf.buf= (unsigned char*) malloc( sizeof( unsigned char ) * MAXSOCKBUF ); 116
138 /* Basic initialization. Needed because we do a check in 117 /* Basic initialization. Needed because we do a check in
139 * HandleClient for oldsocketmode without checking the 118 * HandleClient for oldsocketmode without checking the
140 * length of data. 119 * length of data.
141 */ 120 */
142 memset( ns->inbuf.buf, 0, sizeof( unsigned char ) * MAXSOCKBUF );
143 memset(&ns->lastmap,0,sizeof(struct Map)); 121 memset (&ns->lastmap, 0, sizeof (struct Map));
144 memset(ns->faces_sent, 0, ns->faces_sent_len*sizeof(*ns->faces_sent)); 122 memset (ns->faces_sent, 0, ns->faces_sent_len * sizeof (*ns->faces_sent));
145 memset(&ns->anims_sent,0,sizeof(ns->anims_sent)); 123 memset (&ns->anims_sent, 0, sizeof (ns->anims_sent));
146 memset(&ns->stats,0,sizeof(struct statsinfo)); 124 memset (&ns->stats, 0, sizeof (struct statsinfo));
147 /* Do this so we don't send a face command for the client for 125 /* 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 126 * this face. Face 0 is sent to the client to say clear
149 * face information. 127 * face information.
150 */ 128 */
151 ns->faces_sent[0] = NS_FACESENT_FACE; 129 ns->faces_sent[0] = NS_FACESENT_FACE;
152 130
153 ns->outputbuffer.start=0; 131 ns->outputbuffer.start = 0;
154 ns->outputbuffer.len=0; 132 ns->outputbuffer.len = 0;
155 ns->can_write=1; 133 ns->can_write = 1;
156 ns->password_fails = 0; 134 ns->password_fails = 0;
157 135
158 ns->current_map = 0; 136 ns->current_map = 0;
159 ns->current_x = 0; 137 ns->current_x = 0;
160 ns->current_y = 0; 138 ns->current_y = 0;
161 ns->client[0] = 0; 139 ns->client[0] = 0;
162 ns->buggy_mapscroll = 0; 140 ns->buggy_mapscroll = 0;
163 141
164 ns->sent_scroll=0; 142 ns->sent_scroll = 0;
165 ns->host=strdup_local(from_ip); 143 ns->host = strdup_local (from_ip);
166 sprintf((char*)buf, "version %d %d %s\n", VERSION_CS,VERSION_SC, VERSION_INFO); 144 sprintf ((char *) buf, "version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
167 sl.buf=(unsigned char*)buf; 145 sl.buf = (unsigned char *) buf;
168 sl.len=strlen((char*)buf); 146 sl.len = strlen ((char *) buf);
169 Send_With_Handling(ns, &sl); 147 Send_With_Handling (ns, &sl);
170#ifdef CS_LOGSTATS 148#ifdef CS_LOGSTATS
171 if (socket_info.nconns>cst_tot.max_conn) 149 if (socket_info.nconns > cst_tot.max_conn)
172 cst_tot.max_conn = socket_info.nconns; 150 cst_tot.max_conn = socket_info.nconns;
173 if (socket_info.nconns>cst_lst.max_conn) 151 if (socket_info.nconns > cst_lst.max_conn)
174 cst_lst.max_conn = socket_info.nconns; 152 cst_lst.max_conn = socket_info.nconns;
175#endif 153#endif
176} 154}
177 155
178 156
179/** This sets up the socket and reads all the image information into memory. */ 157/** This sets up the socket and reads all the image information into memory. */
158void
180void init_ericserver(void) 159init_ericserver (void)
181{ 160{
182 struct sockaddr_in insock; 161 struct sockaddr_in insock;
183 struct protoent *protox; 162 struct protoent *protox;
184 struct linger linger_opt; 163 struct linger linger_opt;
185 164
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); 165 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 */
205 166
206 socket_info.timeout.tv_sec = 0; 167 socket_info.timeout.tv_sec = 0;
207 socket_info.timeout.tv_usec = 0; 168 socket_info.timeout.tv_usec = 0;
208 socket_info.nconns=0; 169 socket_info.nconns = 0;
209 170
210#ifdef CS_LOGSTATS 171#ifdef CS_LOGSTATS
211 memset(&cst_tot, 0, sizeof(CS_Stats)); 172 memset (&cst_tot, 0, sizeof (CS_Stats));
212 memset(&cst_lst, 0, sizeof(CS_Stats)); 173 memset (&cst_lst, 0, sizeof (CS_Stats));
213 cst_tot.time_start=time(NULL); 174 cst_tot.time_start = time (NULL);
214 cst_lst.time_start=time(NULL); 175 cst_lst.time_start = time (NULL);
215#endif 176#endif
216 177
217 LOG(llevDebug,"Initialize new client/server data\n"); 178 LOG (llevDebug, "Initialize new client/server data\n");
218 socket_info.nconns = 1; 179 socket_info.nconns = 1;
219 init_sockets = (NewSocket *) malloc(sizeof(NewSocket)); 180 init_sockets = (NewSocket *) malloc (sizeof (NewSocket));
220 init_sockets[0].faces_sent = NULL; /* unused */ 181 init_sockets[0].faces_sent = NULL; /* unused */
221 socket_info.allocated_sockets=1; 182 socket_info.allocated_sockets = 1;
222 183
223 protox = getprotobyname("tcp"); 184 protox = getprotobyname ("tcp");
224 if (protox==NULL) { 185 if (protox == NULL)
186 {
225 LOG(llevError,"init_ericserver: Error getting protox\n"); 187 LOG (llevError, "init_ericserver: Error getting protox\n");
226 return; 188 return;
227 } 189 }
190
228 init_sockets[0].fd = socket(PF_INET, SOCK_STREAM, protox->p_proto); 191 init_sockets[0].fd = socket (PF_INET, SOCK_STREAM, protox->p_proto);
229 if (init_sockets[0].fd == -1) { 192 if (init_sockets[0].fd == -1)
193 {
230 LOG(llevError, "Cannot create socket: %s\n", strerror_local(errno)); 194 LOG (llevError, "Cannot create socket: %s\n", strerror (errno));
231 exit(-1); 195 exit (-1);
232 } 196 }
197
233 insock.sin_family = AF_INET; 198 insock.sin_family = AF_INET;
234 insock.sin_port = htons(settings.csport); 199 insock.sin_port = htons (settings.csport);
235 insock.sin_addr.s_addr = htonl(INADDR_ANY); 200 insock.sin_addr.s_addr = htonl (INADDR_ANY);
236 201
237 linger_opt.l_onoff = 0; 202 linger_opt.l_onoff = 0;
238 linger_opt.l_linger = 0; 203 linger_opt.l_linger = 0;
239 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_LINGER,(char *) &linger_opt, 204 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_local(errno)); 205 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno));
242 } 206
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 { 207 {
253#ifdef WIN32
254 char tmp = 1;
255#else
256 int tmp =1; 208 int tmp = 1;
257#endif
258 209
259 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_REUSEADDR, &tmp, sizeof(tmp))) { 210 if (setsockopt (init_sockets[0].fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof (tmp)))
260 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(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_local(errno)); 211 LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno));
266 } 212 }
267#endif
268 213
269 if (bind(init_sockets[0].fd,(struct sockaddr *)&insock,sizeof(insock)) == (-1)) { 214 if (bind (init_sockets[0].fd, (struct sockaddr *) &insock, sizeof (insock)) == (-1))
215 {
270 LOG(llevError, "Cannot bind socket to port %d: %s\n", ntohs(insock.sin_port), strerror_local(errno)); 216 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); 217 close (init_sockets[0].fd);
276#endif /* win32 */
277 exit(-1); 218 exit (-1);
278 } 219 }
220
279 if (listen(init_sockets[0].fd,5) == (-1)) { 221 if (listen (init_sockets[0].fd, 5) == (-1))
222 {
280 LOG(llevError, "Cannot listen on socket: %s\n", strerror_local(errno)); 223 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); 224 close (init_sockets[0].fd);
286#endif /* win32 */
287 exit(-1); 225 exit (-1);
288 } 226 }
227
289 init_sockets[0].status=Ns_Add; 228 init_sockets[0].status = Ns_Add;
290 read_client_images(); 229 read_client_images ();
291} 230}
292 231
293 232
294/******************************************************************************* 233/*******************************************************************************
295 * 234 *
296 * Start of functions dealing with freeing of the data. 235 * Start of functions dealing with freeing of the data.
297 * 236 *
298 ******************************************************************************/ 237 ******************************************************************************/
299 238
300/** Free's all the memory that ericserver allocates. */ 239/** Free's all the memory that ericserver allocates. */
240void
301void free_all_newserver(void) 241free_all_newserver (void)
302{ 242{
303 LOG(llevDebug,"Freeing all new client/server information.\n"); 243 LOG (llevDebug, "Freeing all new client/server information.\n");
304 free_socket_images(); 244 free_socket_images ();
305 free(init_sockets); 245 free (init_sockets);
306} 246}
307 247
308/** 248/**
309 * Frees a socket. 249 * Frees a socket.
310 * Basically, all we need to do here is free all data structures that 250 * 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 251 * might be associated with the socket. It is up to the caller to
312 * update the list 252 * update the list
313 */ 253 */
314 254
255void
315void free_newsocket(NewSocket *ns) 256free_newsocket (NewSocket *ns)
316{ 257{
317#ifdef WIN32 /* ***win32: closesocket in windows style */ 258 close (ns->fd);
318 shutdown(ns->fd,SD_BOTH);
319 if (closesocket(ns->fd)) {
320#else
321 if (close(ns->fd)) {
322#endif /* win32 */
323 259
324#ifdef ESRV_DEBUG
325 LOG(llevDebug,"Error closing socket %d\n", ns->fd);
326#endif
327 }
328 if (ns->stats.range) 260 if (ns->stats.range)
329 free(ns->stats.range); 261 free (ns->stats.range);
262
330 if (ns->stats.title) 263 if (ns->stats.title)
331 free(ns->stats.title); 264 free (ns->stats.title);
332 if (ns->comment) 265
333 free(ns->comment);
334 free(ns->host); 266 free (ns->host);
335 free(ns->inbuf.buf);
336} 267}
337 268
338/** Sends the 'goodbye' command to the player, and closes connection. */ 269/** Sends the 'goodbye' command to the player, and closes connection. */
270void
339void final_free_player(player *pl) 271final_free_player (player *pl)
340{ 272{
341 cs_write_string(&pl->socket, "goodbye", 8); 273 cs_write_string (&pl->socket, "goodbye", 8);
342 free_newsocket(&pl->socket); 274 free_newsocket (&pl->socket);
343 free_player(pl); 275 free_player (pl);
344} 276}
345

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