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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 1.11 by root, Wed Dec 13 02:55:51 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; 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 ns->inbuf.buf = (unsigned char *) malloc (sizeof (unsigned char) * MAXSOCKBUF);
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 ); 121 memset (ns->inbuf.buf, 0, sizeof (unsigned char) * MAXSOCKBUF);
143 memset(&ns->lastmap,0,sizeof(struct Map)); 122 memset (&ns->lastmap, 0, sizeof (struct Map));
144 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));
145 memset(&ns->anims_sent,0,sizeof(ns->anims_sent)); 124 memset (&ns->anims_sent, 0, sizeof (ns->anims_sent));
146 memset(&ns->stats,0,sizeof(struct statsinfo)); 125 memset (&ns->stats, 0, sizeof (struct statsinfo));
147 /* 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
148 * 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
149 * face information. 128 * face information.
150 */ 129 */
151 ns->faces_sent[0] = NS_FACESENT_FACE; 130 ns->faces_sent[0] = NS_FACESENT_FACE;
152 131
153 ns->outputbuffer.start=0; 132 ns->outputbuffer.start = 0;
154 ns->outputbuffer.len=0; 133 ns->outputbuffer.len = 0;
155 ns->can_write=1; 134 ns->can_write = 1;
156 ns->password_fails = 0; 135 ns->password_fails = 0;
157 136
158 ns->current_map = 0; 137 ns->current_map = 0;
159 ns->current_x = 0; 138 ns->current_x = 0;
160 ns->current_y = 0; 139 ns->current_y = 0;
161 ns->client[0] = 0; 140 ns->client[0] = 0;
162 ns->buggy_mapscroll = 0; 141 ns->buggy_mapscroll = 0;
163 142
164 ns->sent_scroll=0; 143 ns->sent_scroll = 0;
165 ns->host=strdup_local(from_ip); 144 ns->host = strdup_local (from_ip);
166 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);
167 sl.buf=(unsigned char*)buf; 146 sl.buf = (unsigned char *) buf;
168 sl.len=strlen((char*)buf); 147 sl.len = strlen ((char *) buf);
169 Send_With_Handling(ns, &sl); 148 Send_With_Handling (ns, &sl);
170#ifdef CS_LOGSTATS 149#ifdef CS_LOGSTATS
171 if (socket_info.nconns>cst_tot.max_conn) 150 if (socket_info.nconns > cst_tot.max_conn)
172 cst_tot.max_conn = socket_info.nconns; 151 cst_tot.max_conn = socket_info.nconns;
173 if (socket_info.nconns>cst_lst.max_conn) 152 if (socket_info.nconns > cst_lst.max_conn)
174 cst_lst.max_conn = socket_info.nconns; 153 cst_lst.max_conn = socket_info.nconns;
175#endif 154#endif
176} 155}
177 156
178 157
179/** 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
180void init_ericserver(void) 160init_ericserver (void)
181{ 161{
182 struct sockaddr_in insock; 162 struct sockaddr_in insock;
183 struct protoent *protox; 163 struct protoent *protox;
184 struct linger linger_opt; 164 struct linger linger_opt;
185 165
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); 166 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 */
205 167
206 socket_info.timeout.tv_sec = 0; 168 socket_info.timeout.tv_sec = 0;
207 socket_info.timeout.tv_usec = 0; 169 socket_info.timeout.tv_usec = 0;
208 socket_info.nconns=0; 170 socket_info.nconns = 0;
209 171
210#ifdef CS_LOGSTATS 172#ifdef CS_LOGSTATS
211 memset(&cst_tot, 0, sizeof(CS_Stats)); 173 memset (&cst_tot, 0, sizeof (CS_Stats));
212 memset(&cst_lst, 0, sizeof(CS_Stats)); 174 memset (&cst_lst, 0, sizeof (CS_Stats));
213 cst_tot.time_start=time(NULL); 175 cst_tot.time_start = time (NULL);
214 cst_lst.time_start=time(NULL); 176 cst_lst.time_start = time (NULL);
215#endif 177#endif
216 178
217 LOG(llevDebug,"Initialize new client/server data\n"); 179 LOG (llevDebug, "Initialize new client/server data\n");
218 socket_info.nconns = 1; 180 socket_info.nconns = 1;
219 init_sockets = (NewSocket *) malloc(sizeof(NewSocket)); 181 init_sockets = (NewSocket *) malloc (sizeof (NewSocket));
220 init_sockets[0].faces_sent = NULL; /* unused */ 182 init_sockets[0].faces_sent = NULL; /* unused */
221 socket_info.allocated_sockets=1; 183 socket_info.allocated_sockets = 1;
222 184
223 protox = getprotobyname("tcp"); 185 protox = getprotobyname ("tcp");
224 if (protox==NULL) { 186 if (protox == NULL)
187 {
225 LOG(llevError,"init_ericserver: Error getting protox\n"); 188 LOG (llevError, "init_ericserver: Error getting protox\n");
226 return; 189 return;
227 } 190 }
191
228 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);
229 if (init_sockets[0].fd == -1) { 193 if (init_sockets[0].fd == -1)
194 {
230 LOG(llevError, "Cannot create socket: %s\n", strerror(errno)); 195 LOG (llevError, "Cannot create socket: %s\n", strerror (errno));
231 exit(-1); 196 exit (-1);
232 } 197 }
198
233 insock.sin_family = AF_INET; 199 insock.sin_family = AF_INET;
234 insock.sin_port = htons(settings.csport); 200 insock.sin_port = htons (settings.csport);
235 insock.sin_addr.s_addr = htonl(INADDR_ANY); 201 insock.sin_addr.s_addr = htonl (INADDR_ANY);
236 202
237 linger_opt.l_onoff = 0; 203 linger_opt.l_onoff = 0;
238 linger_opt.l_linger = 0; 204 linger_opt.l_linger = 0;
239 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)))
240 sizeof(struct linger))) {
241 LOG(llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror(errno)); 206 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno));
242 } 207
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 { 208 {
253#ifdef WIN32
254 char tmp = 1;
255#else
256 int tmp =1; 209 int tmp = 1;
257#endif
258 210
259 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)))
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)); 212 LOG (llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror (errno));
266 } 213 }
267#endif
268 214
269 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 {
270 LOG(llevError, "Cannot bind socket to port %d: %s\n", ntohs(insock.sin_port), strerror(errno)); 217 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); 218 close (init_sockets[0].fd);
276#endif /* win32 */
277 exit(-1); 219 exit (-1);
278 } 220 }
221
279 if (listen(init_sockets[0].fd,5) == (-1)) { 222 if (listen (init_sockets[0].fd, 5) == (-1))
223 {
280 LOG(llevError, "Cannot listen on socket: %s\n", strerror(errno)); 224 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); 225 close (init_sockets[0].fd);
286#endif /* win32 */
287 exit(-1); 226 exit (-1);
288 } 227 }
228
289 init_sockets[0].status=Ns_Add; 229 init_sockets[0].status = Ns_Add;
290 read_client_images(); 230 read_client_images ();
291} 231}
292 232
293 233
294/******************************************************************************* 234/*******************************************************************************
295 * 235 *
296 * Start of functions dealing with freeing of the data. 236 * Start of functions dealing with freeing of the data.
297 * 237 *
298 ******************************************************************************/ 238 ******************************************************************************/
299 239
300/** Free's all the memory that ericserver allocates. */ 240/** Free's all the memory that ericserver allocates. */
241void
301void free_all_newserver(void) 242free_all_newserver (void)
302{ 243{
303 LOG(llevDebug,"Freeing all new client/server information.\n"); 244 LOG (llevDebug, "Freeing all new client/server information.\n");
304 free_socket_images(); 245 free_socket_images ();
305 free(init_sockets); 246 free (init_sockets);
306} 247}
307 248
308/** 249/**
309 * Frees a socket. 250 * Frees a socket.
310 * 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
311 * 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
312 * update the list 253 * update the list
313 */ 254 */
314 255
256void
315void free_newsocket(NewSocket *ns) 257free_newsocket (NewSocket *ns)
316{ 258{
317#ifdef WIN32 /* ***win32: closesocket in windows style */ 259 close (ns->fd);
318 shutdown(ns->fd,SD_BOTH);
319 if (closesocket(ns->fd)) {
320#else
321 if (close(ns->fd)) {
322#endif /* win32 */
323 260
324#ifdef ESRV_DEBUG
325 LOG(llevDebug,"Error closing socket %d\n", ns->fd);
326#endif
327 }
328 if (ns->stats.range) 261 if (ns->stats.range)
329 free(ns->stats.range); 262 free (ns->stats.range);
263
330 if (ns->stats.title) 264 if (ns->stats.title)
331 free(ns->stats.title); 265 free (ns->stats.title);
332 if (ns->comment) 266
333 free(ns->comment);
334 free(ns->host); 267 free (ns->host);
335 free(ns->inbuf.buf); 268 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 cs_write_string (&pl->socket, "goodbye", 8);
342 free_newsocket(&pl->socket); 276 free_newsocket (&pl->socket);
343 free_player(pl); 277 free_player (pl);
344} 278}
345

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