| 1 | |
1 | |
| 2 | /* |
2 | /* |
| 3 | * static char *rcsid_loop_c = |
3 | * static char *rcsid_loop_c = |
| 4 | * "$Id: loop.C,v 1.4 2006/08/30 16:30:37 root Exp $"; |
4 | * "$Id: loop.C,v 1.5 2006/09/09 21:48:29 root Exp $"; |
| 5 | */ |
5 | */ |
| 6 | |
6 | |
| 7 | /* |
7 | /* |
| 8 | CrossFire, A Multiplayer game for X-windows |
8 | CrossFire, A Multiplayer game for X-windows |
| 9 | |
9 | |
| … | |
… | |
| 169 | else if (!strcmp(buf,"spell_paths")) send_spell_paths(ns, params); |
169 | else if (!strcmp(buf,"spell_paths")) send_spell_paths(ns, params); |
| 170 | else Write_String_To_Socket(ns, bigbuf, len); |
170 | else Write_String_To_Socket(ns, bigbuf, len); |
| 171 | } |
171 | } |
| 172 | |
172 | |
| 173 | /** |
173 | /** |
| 174 | * Handles old socket format. |
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| 175 | */ |
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| 176 | void Handle_Oldsocket(NewSocket *ns) |
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| 177 | { |
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| 178 | int stat,i; |
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| 179 | CommFunc command; |
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| 180 | char buf[MAX_BUF],*cp; |
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| 181 | object ob; |
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| 182 | player pl; |
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| 183 | |
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| 184 | /* This is not the most efficient block, but keeps the code simpler - |
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| 185 | * we basically read a byte at a time until we get a newline, error, |
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| 186 | * or no more characters to read. |
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| 187 | */ |
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| 188 | do { |
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| 189 | /* hack to disable old socket mode without creating too many conflicts */ |
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| 190 | if (1 || ns->inbuf.len >= MAXSOCKBUF-1) { |
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| 191 | ns->status = Ns_Dead; |
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| 192 | LOG(llevDebug, "Old input socket sent too much data without newline\n"); |
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| 193 | return; |
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| 194 | } |
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| 195 | #ifdef WIN32 /* ***win32: change oldsocket read() to recv() */ |
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| 196 | stat = recv(ns->fd, ns->inbuf.buf + ns->inbuf.len, 1,0); |
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| 197 | |
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| 198 | if (stat==-1 && WSAGetLastError() !=WSAEWOULDBLOCK) { |
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| 199 | #else |
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| 200 | do { |
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| 201 | stat = read(ns->fd, ns->inbuf.buf + ns->inbuf.len, 1); |
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| 202 | } while ((stat<0) && (errno == EINTR)); |
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| 203 | |
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| 204 | if (stat<0 && errno != EAGAIN && errno !=EWOULDBLOCK) { |
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| 205 | #endif |
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| 206 | LOG(llevError, "Cannot read from socket: %s\n", strerror(errno)); |
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| 207 | ns->status = Ns_Dead; |
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| 208 | return; |
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| 209 | } |
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| 210 | if (stat == 0) return; |
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| 211 | } while (ns->inbuf.buf[ns->inbuf.len++]!='\n'); |
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| 212 | |
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| 213 | ns->inbuf.buf[ns->inbuf.len]=0; |
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| 214 | |
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| 215 | cp = strchr((const char*)ns->inbuf.buf, ' '); |
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| 216 | if (cp) { |
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| 217 | /* Replace the space with a null, skip any more spaces */ |
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| 218 | *cp++=0; |
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| 219 | while (isspace(*cp)) cp++; |
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| 220 | } |
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| 221 | |
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| 222 | /* Strip off all spaces and control characters from end of line */ |
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| 223 | for (i=ns->inbuf.len-1; i>=0; i--) { |
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| 224 | if (ns->inbuf.buf[i]<=32) ns->inbuf.buf[i]=0; |
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| 225 | else break; |
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| 226 | } |
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| 227 | ns->inbuf.len=0; /* reset for next read */ |
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| 228 | |
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| 229 | /* If just a return, don't do anything */ |
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| 230 | if (ns->inbuf.buf[0] == 0) return; |
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| 231 | if (!strcasecmp((const char*)ns->inbuf.buf,"quit")) { |
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| 232 | ns->status = Ns_Dead; |
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| 233 | return; |
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| 234 | } |
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| 235 | if (!strcasecmp((const char*)ns->inbuf.buf, "listen")) { |
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| 236 | if (cp) { |
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| 237 | char *buf="Socket switched to listen mode\n"; |
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| 238 | |
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| 239 | free(ns->comment); |
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| 240 | ns->comment = strdup_local(cp); |
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| 241 | ns->old_mode = Old_Listen; |
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| 242 | cs_write_string(ns, buf, strlen(buf)); |
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| 243 | } else { |
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| 244 | char *buf="Need to supply a comment/url to listen\n"; |
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| 245 | cs_write_string(ns, buf, strlen(buf)); |
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| 246 | } |
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| 247 | return; |
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| 248 | } |
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| 249 | if (!strcasecmp((const char*)ns->inbuf.buf, "name")) { |
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| 250 | char *cp1=NULL; |
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| 251 | if (cp) cp1= strchr(cp, ' '); |
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| 252 | if (cp1) { |
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| 253 | *cp1++ = 0; |
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| 254 | while (isspace(*cp1)) cp1++; |
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| 255 | } |
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| 256 | if (!cp || !cp1) { |
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| 257 | char *buf="Need to provide a name/password to name\n"; |
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| 258 | cs_write_string(ns, buf, strlen(buf)); |
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| 259 | return; |
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| 260 | } |
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| 261 | |
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| 262 | if (verify_player(cp, cp1)==0) { |
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| 263 | char *buf="Welcome back\n"; |
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| 264 | free(ns->comment); |
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| 265 | ns->comment = strdup_local(cp); |
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| 266 | ns->old_mode = Old_Player; |
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| 267 | cs_write_string(ns, buf, strlen(buf)); |
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| 268 | } |
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| 269 | else if (verify_player(cp, cp1)==2) { |
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| 270 | ns->password_fails++; |
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| 271 | if (ns->password_fails >= MAX_PASSWORD_FAILURES) { |
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| 272 | char *buf="You failed to log in too many times, you will now be kicked.\n"; |
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| 273 | LOG(llevInfo, "A player connecting from %s in oldsocketmode has been dropped for password failure\n", |
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| 274 | ns->host); |
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| 275 | cs_write_string(ns, buf, strlen(buf)); |
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| 276 | ns->status = Ns_Dead; |
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| 277 | } |
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| 278 | else { |
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| 279 | char *buf="Could not login you in. Check your name and password.\n"; |
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| 280 | cs_write_string(ns, buf, strlen(buf)); |
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| 281 | } |
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| 282 | } |
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| 283 | else { |
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| 284 | char *buf="Could not login you in. Check your name and password.\n"; |
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| 285 | cs_write_string(ns, buf, strlen(buf)); |
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| 286 | } |
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| 287 | return; |
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| 288 | } |
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| 289 | |
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| 290 | command = find_oldsocket_command((char*)ns->inbuf.buf); |
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| 291 | if (!command && ns->old_mode==Old_Player) { |
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| 292 | command = find_oldsocket_command2((char*)ns->inbuf.buf); |
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| 293 | } |
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| 294 | if (!command) { |
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| 295 | snprintf(buf, sizeof(buf), "Could not find command: %s\n", ns->inbuf.buf); |
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| 296 | cs_write_string(ns, buf, strlen(buf)); |
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| 297 | return; |
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| 298 | } |
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| 299 | |
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| 300 | /* This is a bit of a hack, but works. Basically, we make some |
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| 301 | * fake object and player pointers and give at it. |
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| 302 | * This works as long as the functions we are calling don't need |
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| 303 | * to do anything to the object structure (ie, they are only |
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| 304 | * outputting information and not actually updating anything much.) |
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| 305 | */ |
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| 306 | ob.contr = &pl; |
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| 307 | pl.ob = &ob; |
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| 308 | ob.type = PLAYER; |
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| 309 | pl.listening = 10; |
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| 310 | pl.socket = *ns; |
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| 311 | pl.outputs_count = 1; |
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| 312 | ob.name = ns->comment; |
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| 313 | |
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| 314 | command(&ob, cp); |
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| 315 | } |
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| 316 | |
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| 317 | |
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| 318 | /** |
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| 319 | * Handle client input. |
174 | * Handle client input. |
| 320 | * |
175 | * |
| 321 | * HandleClient is actually not named really well - we only get here once |
176 | * HandleClient is actually not named really well - we only get here once |
| 322 | * there is input, so we don't do exception or other stuff here. |
177 | * there is input, so we don't do exception or other stuff here. |
| 323 | * sock is the output socket information. pl is the player associated |
178 | * sock is the output socket information. pl is the player associated |
| … | |
… | |
| 338 | */ |
193 | */ |
| 339 | if (pl && pl->state==ST_PLAYING && pl->ob != NULL && pl->ob->speed_left < 0) { |
194 | if (pl && pl->state==ST_PLAYING && pl->ob != NULL && pl->ob->speed_left < 0) { |
| 340 | return; |
195 | return; |
| 341 | } |
196 | } |
| 342 | |
197 | |
| 343 | if (ns->status == Ns_Old) { |
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| 344 | Handle_Oldsocket(ns); |
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| 345 | return; |
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| 346 | } |
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| 347 | i=SockList_ReadPacket(ns->fd, &ns->inbuf, MAXSOCKBUF-1); |
198 | i=SockList_ReadPacket(ns->fd, &ns->inbuf, MAXSOCKBUF-1); |
| 348 | /* Special hack - let the user switch to old mode if in the Ns_Add |
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| 349 | * phase. Don't demand they add in the special length bytes |
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| 350 | */ |
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| 351 | if (ns->status == Ns_Add) { |
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| 352 | if (!strncasecmp((const char*)ns->inbuf.buf,"oldsocketmode", 13)) { |
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| 353 | ns->status = Ns_Old; |
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| 354 | ns->inbuf.len=0; |
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| 355 | cs_write_string(ns, "Switched to old socket mode\n", 28); |
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| 356 | LOG(llevDebug,"Switched socket to old socket mode\n"); |
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| 357 | return; |
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| 358 | } |
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| 359 | } |
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| 360 | |
199 | |
| 361 | if (i<0) { |
200 | if (i<0) { |
| 362 | #ifdef ESRV_DEBUG |
201 | #ifdef ESRV_DEBUG |
| 363 | LOG(llevDebug,"HandleClient: Read error on connection player %s\n", (pl?pl->ob->name:"None")); |
202 | LOG(llevDebug,"HandleClient: Read error on connection player %s\n", (pl?pl->ob->name:"None")); |
| 364 | #endif |
203 | #endif |
