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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 1.12 by root, Thu Dec 14 00:01:35 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; 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
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 );
142 memset(&ns->lastmap,0,sizeof(struct Map)); 121 memset (&ns->lastmap, 0, sizeof (struct Map));
143 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));
144 memset(&ns->anims_sent,0,sizeof(ns->anims_sent)); 123 memset (&ns->anims_sent, 0, sizeof (ns->anims_sent));
145 memset(&ns->stats,0,sizeof(struct statsinfo)); 124 memset (&ns->stats, 0, sizeof (struct statsinfo));
146 /* 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
147 * 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
148 * face information. 127 * face information.
149 */ 128 */
150 ns->faces_sent[0] = NS_FACESENT_FACE; 129 ns->faces_sent[0] = NS_FACESENT_FACE;
151 130
152 ns->outputbuffer.start=0; 131 ns->outputbuffer.start = 0;
153 ns->outputbuffer.len=0; 132 ns->outputbuffer.len = 0;
154 ns->can_write=1; 133 ns->can_write = 1;
155 ns->password_fails = 0; 134 ns->password_fails = 0;
156 135
157 ns->current_map = 0; 136 ns->current_map = 0;
158 ns->current_x = 0; 137 ns->current_x = 0;
159 ns->current_y = 0; 138 ns->current_y = 0;
139 ns->client[0] = 0;
140 ns->buggy_mapscroll = 0;
160 141
161 ns->sent_scroll=0; 142 ns->sent_scroll = 0;
162 ns->host=strdup_local(from_ip); 143 ns->host = strdup_local (from_ip);
163 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);
164 sl.buf=(unsigned char*)buf; 145 sl.buf = (unsigned char *) buf;
165 sl.len=strlen((char*)buf); 146 sl.len = strlen ((char *) buf);
166 Send_With_Handling(ns, &sl); 147 Send_With_Handling (ns, &sl);
167#ifdef CS_LOGSTATS 148#ifdef CS_LOGSTATS
168 if (socket_info.nconns>cst_tot.max_conn) 149 if (socket_info.nconns > cst_tot.max_conn)
169 cst_tot.max_conn = socket_info.nconns; 150 cst_tot.max_conn = socket_info.nconns;
170 if (socket_info.nconns>cst_lst.max_conn) 151 if (socket_info.nconns > cst_lst.max_conn)
171 cst_lst.max_conn = socket_info.nconns; 152 cst_lst.max_conn = socket_info.nconns;
172#endif 153#endif
173} 154}
174 155
175 156
176/** 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
177void init_ericserver(void) 159init_ericserver (void)
178{ 160{
179 struct sockaddr_in insock; 161 struct sockaddr_in insock;
180 struct protoent *protox; 162 struct protoent *protox;
181 struct linger linger_opt; 163 struct linger linger_opt;
182 164
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); 165 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 */
202 166
203 socket_info.timeout.tv_sec = 0; 167 socket_info.timeout.tv_sec = 0;
204 socket_info.timeout.tv_usec = 0; 168 socket_info.timeout.tv_usec = 0;
205 socket_info.nconns=0; 169 socket_info.nconns = 0;
206 170
207#ifdef CS_LOGSTATS 171#ifdef CS_LOGSTATS
208 memset(&cst_tot, 0, sizeof(CS_Stats)); 172 memset (&cst_tot, 0, sizeof (CS_Stats));
209 memset(&cst_lst, 0, sizeof(CS_Stats)); 173 memset (&cst_lst, 0, sizeof (CS_Stats));
210 cst_tot.time_start=time(NULL); 174 cst_tot.time_start = time (NULL);
211 cst_lst.time_start=time(NULL); 175 cst_lst.time_start = time (NULL);
212#endif 176#endif
213 177
214 LOG(llevDebug,"Initialize new client/server data\n"); 178 LOG (llevDebug, "Initialize new client/server data\n");
215 socket_info.nconns = 1; 179 socket_info.nconns = 1;
216 init_sockets = (NewSocket *) malloc(sizeof(NewSocket)); 180 init_sockets = (NewSocket *) malloc (sizeof (NewSocket));
217 init_sockets[0].faces_sent = NULL; /* unused */ 181 init_sockets[0].faces_sent = NULL; /* unused */
218 socket_info.allocated_sockets=1; 182 socket_info.allocated_sockets = 1;
219 183
220 protox = getprotobyname("tcp"); 184 protox = getprotobyname ("tcp");
221 if (protox==NULL) { 185 if (protox == NULL)
186 {
222 LOG(llevError,"init_ericserver: Error getting protox\n"); 187 LOG (llevError, "init_ericserver: Error getting protox\n");
223 return; 188 return;
224 } 189 }
190
225 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);
226 if (init_sockets[0].fd == -1) { 192 if (init_sockets[0].fd == -1)
193 {
227 LOG(llevError, "Cannot create socket: %s\n", strerror_local(errno)); 194 LOG (llevError, "Cannot create socket: %s\n", strerror (errno));
228 exit(-1); 195 exit (-1);
229 } 196 }
197
230 insock.sin_family = AF_INET; 198 insock.sin_family = AF_INET;
231 insock.sin_port = htons(settings.csport); 199 insock.sin_port = htons (settings.csport);
232 insock.sin_addr.s_addr = htonl(INADDR_ANY); 200 insock.sin_addr.s_addr = htonl (INADDR_ANY);
233 201
234 linger_opt.l_onoff = 0; 202 linger_opt.l_onoff = 0;
235 linger_opt.l_linger = 0; 203 linger_opt.l_linger = 0;
236 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)))
237 sizeof(struct linger))) {
238 LOG(llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror_local(errno)); 205 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno));
239 } 206
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 { 207 {
250#ifdef WIN32
251 char tmp = 1; 208 int tmp = 1;
252#else
253 int tmp =1;
254#endif
255 209
256 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)))
257 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(errno)); 211 LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno));
258 }
259 } 212 }
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
265 213
266 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 {
267 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));
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); 217 close (init_sockets[0].fd);
273#endif /* win32 */ 218 exit (-1);
274 exit(-1);
275 } 219 }
220
276 if (listen(init_sockets[0].fd,5) == (-1)) { 221 if (listen (init_sockets[0].fd, 5) == (-1))
222 {
277 LOG(llevError, "Cannot listen on socket: %s\n", strerror_local(errno)); 223 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); 224 close (init_sockets[0].fd);
283#endif /* win32 */ 225 exit (-1);
284 exit(-1);
285 } 226 }
227
286 init_sockets[0].status=Ns_Add; 228 init_sockets[0].status = Ns_Add;
287 read_client_images(); 229 read_client_images ();
288} 230}
289 231
290 232
291/******************************************************************************* 233/*******************************************************************************
292 * 234 *
293 * Start of functions dealing with freeing of the data. 235 * Start of functions dealing with freeing of the data.
294 * 236 *
295 ******************************************************************************/ 237 ******************************************************************************/
296 238
297/** Free's all the memory that ericserver allocates. */ 239/** Free's all the memory that ericserver allocates. */
240void
298void free_all_newserver(void) 241free_all_newserver (void)
299{ 242{
300 LOG(llevDebug,"Freeing all new client/server information.\n"); 243 LOG (llevDebug, "Freeing all new client/server information.\n");
301 free_socket_images(); 244 free_socket_images ();
302 free(init_sockets); 245 free (init_sockets);
303} 246}
304 247
305/** 248/**
306 * Frees a socket. 249 * Frees a socket.
307 * 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
308 * 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
309 * update the list 252 * update the list
310 */ 253 */
311 254
255void
312void free_newsocket(NewSocket *ns) 256free_newsocket (NewSocket *ns)
313{ 257{
314#ifdef WIN32 /* ***win32: closesocket in windows style */ 258 close (ns->fd);
315 shutdown(ns->fd,SD_BOTH);
316 if (closesocket(ns->fd)) {
317#else
318 if (close(ns->fd)) {
319#endif /* win32 */
320 259
321#ifdef ESRV_DEBUG
322 LOG(llevDebug,"Error closing socket %d\n", ns->fd);
323#endif
324 }
325 if (ns->stats.range) 260 if (ns->stats.range)
326 free(ns->stats.range); 261 free (ns->stats.range);
262
327 if (ns->stats.title) 263 if (ns->stats.title)
328 free(ns->stats.title); 264 free (ns->stats.title);
329 if (ns->comment) 265
330 free(ns->comment);
331 free(ns->host); 266 free (ns->host);
332 free(ns->inbuf.buf);
333} 267}
334 268
335/** Sends the 'goodbye' command to the player, and closes connection. */ 269/** Sends the 'goodbye' command to the player, and closes connection. */
270void
336void final_free_player(player *pl) 271final_free_player (player *pl)
337{ 272{
338 cs_write_string(&pl->socket, "goodbye", 8); 273 cs_write_string (&pl->socket, "goodbye", 8);
339 free_newsocket(&pl->socket); 274 free_newsocket (&pl->socket);
340 free_player(pl); 275 free_player (pl);
341} 276}
342

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