src/network/chat_api.cpp

   1 /*
   2  * Copyright (C) Volition, Inc. 2005.  All rights reserved.
   3  *
   4  * All source code herein is the property of Volition, Inc. You may not sell
   5  * or otherwise commercially exploit the source or things you created based on the
   6  * source.
   7  *
   8 */
   9
  10
  11 #ifdef PLAT_UNIX
  12 #include <sys/time.h>
  13 #include <sys/types.h>
  14 #include <sys/socket.h>
  15 #include <sys/ioctl.h>
  16 #include <netinet/in.h>
  17 #include <sys/select.h>
  18 #include <errno.h>
  19 #include <arpa/inet.h>
  20 #include <netdb.h>
  21
  22 #define WSAGetLastError()  (errno)
  23 #else
  24 #include <winsock.h>
  25 typedef int socklen_t;
  26 #endif
  27
  28 #include "pstypes.h"
  29 #include "chat_api.h"
  30
  31 #define MAXCHATBUFFER   500
  32
  33 static SOCKET Chatsock;
  34 static SOCKADDR_IN Chataddr;
  35 static int Socket_connecting = 0;
  36 static char Nick_name[33];
  37 static char Original_nick_name[33];
  38 static int Nick_variety = 0;
  39 static char szChat_channel[33] = "";
  40 static char Input_chat_buffer[MAXCHATBUFFER] = "";
  41 static char Chat_tracker_id[33];
  42 static char Getting_user_channel_info_for[33] = "";
  43 static char Getting_user_tracker_info_for[33] = "";
  44 static int Getting_user_channel_error = 0;
  45 static int Getting_user_tracker_error = 0;
  46 static char User_req_tracker_id[100] = ""; //These are oversized for saftey
  47 static char User_req_channel[100] = "";
  48 static char *User_list = NULL;
  49 static char *Chan_list = NULL;
  50 static int Socket_connected = 0;
  51 static int Chat_server_connected = 0;
  52 static int Joining_channel = 0;
  53 static int Joined_channel = 0;
  54 static int GettingChannelList = 0;
  55 static int GettingUserTID = 0;
  56 static int GettingUserChannel = 0;
  57
  58 static Chat_user *Firstuser,*Curruser;
  59 static Chat_command *Firstcommand,*Currcommand;
  60 static Chat_channel *Firstchannel,*Currchannel;
  61
  62 void ChatInit(void)
  63 {
  64         Socket_connecting = 0;
  65         SDL_zero(Nick_name);
  66         SDL_zero(Original_nick_name);
  67         Nick_variety = 0;
  68         SDL_zero(szChat_channel);
  69         SDL_zero(Input_chat_buffer);
  70         SDL_zero(Chat_tracker_id);
  71         SDL_zero(Getting_user_channel_info_for);
  72         SDL_zero(Getting_user_tracker_info_for);
  73         Getting_user_channel_error = 0;
  74         Getting_user_tracker_error = 0;
  75         SDL_zero(User_req_tracker_id);
  76         SDL_zero(User_req_channel);
  77         User_list = NULL;
  78         Chan_list = NULL;
  79         Socket_connected = 0;
  80         Chat_server_connected = 0;
  81         Joining_channel = 0;
  82         Joined_channel = 0;
  83         GettingChannelList = 0;
  84         GettingUserTID = 0;
  85         GettingUserChannel = 0;
  86
  87 }
  88
  89
  90 // Return codes:
  91 //-2 Already connected
  92 //-1 Failed to connect
  93 // 0 Connecting
  94 // 1 Connected
  95 // Call it once with the server IP address, and it will return immediately
  96 // with 0. Keep calling it until it returns something other than 0
  97 // note: the nickname may be changed if someone with that name already
  98 // exists (Scourge1 for instance)
  99 int ConnectToChatServer(char *serveraddr,char *nickname,char *trackerid)
 100 {
 101         short chat_port;
 102         char chat_server[50];
 103         char *p;
 104         unsigned long argp = 1;
 105         char signon_str[100];
 106
 107         //if(Socket_connected && ) return -2;
 108
 109         if(!Socket_connecting)
 110         {
 111                 unsigned long iaddr;
 112
 113                 SDL_strlcpy(Nick_name, nickname, sizeof(Nick_name));
 114                 SDL_strlcpy(Original_nick_name, nickname, sizeof(Original_nick_name));
 115                 SDL_strlcpy(Chat_tracker_id, trackerid, sizeof(Chat_tracker_id));
 116
 117                 Firstuser = NULL;
 118                 Firstcommand = NULL;
 119                 Chat_server_connected = 0;
 120                 FlushChatCommandQueue();
 121
 122                 p = strchr(serveraddr,':');
 123
 124                 if(NULL==p)
 125                 {
 126                         //AfxMessageBox("Invalid chat server, must be host.com:port (ie. irc.dal.net:6667)");
 127                         return -1;
 128                 }
 129                 SDL_strlcpy(chat_server, serveraddr, sizeof(chat_server));
 130                 chat_server[p-serveraddr]='\0';
 131                 chat_port = (short)atoi(p+1);
 132                 if(0==chat_port)
 133                 {
 134                         //AfxMessageBox("Invalid chat port, must be host.com:port (ie. irc.dal.net:6667)");
 135                         return -1;
 136                 }
 137
 138                 Chatsock = socket(AF_INET,SOCK_STREAM,0);
 139                 if(INVALID_SOCKET == Chatsock)
 140                 {
 141                         //AfxMessageBox("Unable to open socket!");
 142                         return -1;
 143                 }
 144
 145                 memset( &Chataddr, 0, sizeof(SOCKADDR_IN) );
 146                 Chataddr.sin_family = AF_INET;
 147                 Chataddr.sin_addr.s_addr = INADDR_ANY;
 148                 Chataddr.sin_port = 0;
 149
 150                 if (SOCKET_ERROR==bind(Chatsock, (SOCKADDR*)&Chataddr, sizeof (sockaddr)))
 151                 {
 152                         //AfxMessageBox("Unable to bind socket!");
 153                         return -1;
 154                 }
 155                 ioctlsocket(Chatsock,FIONBIO,&argp);
 156
 157                 // first try and resolve by name
 158                 iaddr = inet_addr( chat_server );
 159                 if ( iaddr == INADDR_NONE ) {
 160                         HOSTENT *he;
 161                         he = gethostbyname(chat_server);
 162                         if(!he)
 163                         {
 164                                 return 0;
 165                                 /*
 166                                 //AfxMessageBox("Unable to gethostbyname.\n");
 167
 168                                 // try and resolve by address
 169                                 unsigned int n_order = inet_addr(chat_server);
 170                                 he = gethostbyaddr((char*)&n_order,4,PF_INET);
 171
 172                                 if(!he){
 173                                         return -1;
 174                                 }
 175                                 */
 176                         }
 177                         memcpy(&iaddr, he->h_addr_list[0],4);
 178                 }
 179
 180                 memcpy(&Chataddr.sin_addr.s_addr, &iaddr,4); //&iaddr, 4);
 181
 182
 183                 // Chataddr.sin_addr.s_addr = inet_addr(chat_server);
 184
 185                 Chataddr.sin_port = htons( chat_port );
 186
 187                 if(SOCKET_ERROR == connect(Chatsock,(SOCKADDR *)&Chataddr,sizeof(SOCKADDR_IN)))
 188                 {
 189                         if(WSAEWOULDBLOCK == WSAGetLastError())
 190                         {
 191                                 Socket_connecting = 1;
 192                                 return 0;
 193                         }
 194                 }
 195                 else
 196                 {
 197                         //This should never happen, connect should always return WSAEWOULDBLOCK
 198                         Socket_connecting = 1;
 199                         Socket_connected = 1;
 200                         return 1;
 201                 }
 202         }
 203         else
 204         {
 205                 if(Chat_server_connected)
 206                 {
 207                         return 1;
 208                 }
 209
 210                 if(!Socket_connected)
 211                 {
 212                         //Do a few select to check for an error, or to see if we are writeable (connected)
 213                         fd_set write_fds,error_fds;
 214                         TIMEVAL timeout;
 215
 216                         timeout.tv_sec=0;
 217                         timeout.tv_usec=0;
 218
 219                         FD_ZERO(&write_fds);
 220                         FD_SET(Chatsock,&write_fds);
 221                         //Writable -- that means it's connected
 222                         if(select(0,NULL,&write_fds,NULL,&timeout))
 223                         {
 224                                 Socket_connected = 1;
 225                                 SDL_snprintf(signon_str, sizeof(signon_str), NOX("/USER %s %s %s :%s"), NOX("user"), NOX("user"), NOX("user"), Chat_tracker_id);
 226                                 SendChatString(signon_str,1);
 227                                 SDL_snprintf(signon_str, sizeof(signon_str), NOX("/NICK %s"), Nick_name);
 228                                 SendChatString(signon_str,1);
 229                                 return 0;
 230                                 //Now we are waiting for Chat_server_connected
 231                         }
 232                         FD_ZERO(&error_fds);
 233                         FD_SET(Chatsock,&error_fds);
 234                         //error -- that means it's not going to connect
 235                         if(select(0,NULL,NULL,&error_fds,&timeout))
 236                         {
 237                                 return -1;
 238                         }
 239                         return 0;
 240                 }
 241         }
 242
 243         return 0;
 244 }
 245
 246 // Call it to close the connection. It returns immediately
 247 void DisconnectFromChatServer()
 248 {
 249         if(!Socket_connected) return;
 250         SendChatString(NOX("/QUIT"),1);
 251         shutdown(Chatsock,2);
 252         closesocket(Chatsock);
 253         Socket_connecting = 0;
 254         Socket_connected = 0;
 255         Input_chat_buffer[0] = '\0';
 256         if(User_list)
 257         {
 258                 free(User_list);
 259                 User_list = NULL;
 260         }
 261         if(Chan_list)
 262         {
 263                 free(Chan_list);
 264                 Chan_list = NULL;
 265         }
 266
 267         Chat_server_connected = 0;
 268         Joining_channel = 0;
 269         Joined_channel = 0;
 270         RemoveAllChatUsers();
 271         FlushChatCommandQueue();
 272         return;
 273 }
 274
 275 // returns NULL if no line is there to print, otherwise returns a string to
 276 // print (all preformatted of course)
 277 char * GetChatText()
 278 {
 279
 280         if(!Socket_connected) return NULL;
 281
 282         //ChatGetString will do the formatting
 283         return ChatGetString();
 284
 285 }
 286
 287 // Send a string to be sent as chat, or scanned for messages (/msg <user>
 288 // string)
 289 const char * SendChatString(const char *line,int raw)
 290 {
 291         char szCmd[200];
 292         char szTarget[50];
 293         if(!Socket_connected) return NULL;
 294
 295         if(line[0]=='/')
 296         {
 297
 298                 //Start off by getting the command
 299                 SDL_strlcpy(szCmd, GetWordNum(0,line+1), sizeof(szCmd));
 300                 if(SDL_strcasecmp(szCmd,NOX("msg"))==0)
 301                 {
 302                         SDL_strlcpy(szTarget, GetWordNum(1,line+1), sizeof(szTarget));
 303                         SDL_snprintf(szCmd, sizeof(szCmd), NOX("PRIVMSG %s :%s\n\r"), szTarget, line+strlen(NOX("/msg "))+strlen(szTarget)+1);
 304                         send(Chatsock,szCmd,strlen(szCmd),0);
 305                         szCmd[strlen(szCmd)-2]='\0';
 306                         return ParseIRCMessage(szCmd,MSG_LOCAL);
 307
 308                 }
 309                 if(SDL_strcasecmp(szCmd,NOX("me"))==0)
 310                 {
 311                         SDL_snprintf(szCmd, sizeof(szCmd), NOX("PRIVMSG %s :\001ACTION %s\001\n\r"), szChat_channel, line+strlen(NOX("/me ")));
 312                         send(Chatsock,szCmd,strlen(szCmd),0);
 313                         szCmd[strlen(szCmd)-2]='\0';
 314                         return ParseIRCMessage(szCmd,MSG_LOCAL);
 315
 316                 }
 317                 if(SDL_strcasecmp(szCmd,NOX("xyz"))==0)
 318                 {
 319                         //Special command to send raw irc commands
 320                         SDL_snprintf(szCmd, sizeof(szCmd), "%s\n\r", line+strlen(NOX("/xyz ")));
 321                         send(Chatsock,szCmd,strlen(szCmd),0);
 322                         return NULL;
 323                 }
 324                 if(SDL_strcasecmp(szCmd,NOX("list"))==0)
 325                 {
 326                         SDL_snprintf(szCmd, sizeof(szCmd), "%s\n\r", line+1);
 327                         send(Chatsock,szCmd,strlen(szCmd),0);
 328                         return NULL;
 329                 }
 330                 if(raw)
 331                 {
 332                         SDL_snprintf(szCmd, sizeof(szCmd), "%s\n\r", line+1);
 333                         send(Chatsock,szCmd,strlen(szCmd),0);
 334                         return NULL;
 335                 }
 336                 return XSTR("Unrecognized command",634);
 337
 338         }
 339         else
 340         {
 341                 if(szChat_channel[0])
 342                 {
 343                         /*
 344                         CString sndstr;
 345                         sndstr.Format("PRIVMSG %s :%s\n\r",szChat_channel,line);
 346                         send(Chatsock,LPCSTR(sndstr),sndstr.GetLength(),0);
 347                         sndstr = sndstr.Left(sndstr.GetLength()-2);
 348                         return ParseIRCMessage((char *)LPCSTR(sndstr),MSG_LOCAL);
 349                         */
 350
 351                         SDL_snprintf(szCmd, sizeof(szCmd), NOX("PRIVMSG %s :%s\n\r"), szChat_channel, line);
 352                         send(Chatsock,szCmd,strlen(szCmd),0);
 353                         if(strlen(szCmd) >= 2){
 354                                 szCmd[strlen(szCmd)-2] = '\0';
 355                                 return ParseIRCMessage(szCmd,MSG_LOCAL);
 356                         }
 357
 358                         return NULL;
 359                 }
 360         }
 361
 362         return NULL;
 363 }
 364
 365
 366 // Returns a structure which contains a command and possible some data (like
 367 // a user joining or leaving) if one is waiting
 368 // This tells you if you need to add a user from the userlist, remove a user,
 369 // etc. Also for status messages, like if you get knocked
 370 // off the server for some reason.
 371 Chat_command *GetChatCommand()
 372 {
 373         if(!Socket_connected) return NULL;
 374         return GetChatCommandFromQueue();
 375 }
 376
 377 // This function returns a list of users in the current channel, in one
 378 // string, separated by spaces, terminated by a null
 379 // (Spaces aren't allowed as part of a nickname)
 380 char *GetChatUserList()
 381 {
 382         int iuser_list_length = 0;;
 383         if(User_list)
 384         {
 385                 free(User_list);
 386                 User_list = NULL;
 387         }
 388         if(!Socket_connected) return NULL;
 389
 390         Curruser = Firstuser;
 391         while(Curruser)
 392         {
 393                 iuser_list_length += strlen(Curruser->nick_name)+1;
 394                 Curruser = Curruser->next;
 395         }
 396         Curruser = Firstuser;
 397         User_list = (char *)malloc(iuser_list_length+1);
 398         User_list[0] = '\0';
 399         while(Curruser)
 400         {
 401                 strcat(User_list,Curruser->nick_name);
 402                 strcat(User_list," ");
 403                 Curruser = Curruser->next;
 404         }
 405
 406         return User_list;
 407 }
 408
 409 // Call this to set/join a channel. Since we can't be sure that we will be
 410 // able to join that channel, check it for completion
 411 // You can't be in more than one channel at a time with this API, so you
 412 // leave the current channel before trying to join
 413 // a new one. Because of this if the join fails, make sure you try to join
 414 // another channel, or the user wont be able to chat
 415 //-1 Failed to join
 416 // 0 joining
 417 // 1 successfully joined
 418 int SetNewChatChannel(char *channel)
 419 {
 420         char partstr[100];
 421         if(!Socket_connected) return -1;
 422         if(Joining_channel==1)
 423         {
 424                 if(Joined_channel==1)
 425                 {
 426                         //We made it in!
 427                         Joining_channel = 0;
 428                         return 1;
 429                 }
 430                 else if(Joined_channel==-1)
 431                 {
 432                         //Error -- we got a message that the channel was invite only, or we were banned or something
 433                         Joining_channel = 0;
 434                         SDL_zero(szChat_channel);
 435                         return -1;
 436                 }
 437         }
 438         else
 439         {
 440                 if(szChat_channel[0])
 441                 {
 442                         SDL_snprintf(partstr, sizeof(partstr), NOX("/PART %s"), szChat_channel);
 443                         SendChatString(partstr,1);
 444                 }
 445                 SDL_strlcpy(szChat_channel, channel, sizeof(szChat_channel));
 446                 SDL_snprintf(partstr, sizeof(partstr), NOX("/JOIN %s"), szChat_channel);
 447                 SendChatString(partstr,1);
 448                 Joining_channel = 1;
 449                 Joined_channel = 0;
 450         }
 451
 452         return 0;
 453 }
 454
 455
 456 char *ChatGetString(void)
 457 {
 458         fd_set read_fds;
 459         TIMEVAL timeout;
 460         char ch[2];
 461         char *p;
 462         int bytesread;
 463         static char return_string[MAXCHATBUFFER];
 464
 465         timeout.tv_sec=0;
 466         timeout.tv_usec=0;
 467
 468         FD_ZERO(&read_fds);
 469         FD_SET(Chatsock,&read_fds);
 470         //Writable -- that means it's connected
 471         while(select(0,&read_fds,NULL,NULL,&timeout))
 472         {
 473                 bytesread = recv(Chatsock,ch,1,0);
 474                 if(bytesread)
 475                 {
 476                         ch[1] = '\0';
 477
 478                         if((ch[0] == 0x0a)||(ch[0]==0x0d))
 479                         {
 480                                 if(Input_chat_buffer[0]=='\0')
 481                                 {
 482                                         //Blank line, ignore it
 483                                         return NULL;
 484                                 }
 485                                 SDL_strlcpy(return_string, Input_chat_buffer, sizeof(return_string));
 486                                 Input_chat_buffer[0] = '\0';
 487
 488                                 p = ParseIRCMessage(return_string,MSG_REMOTE);
 489
 490                                 return p;
 491                         }
 492                         SDL_assert(strlen(Input_chat_buffer) < MAXCHATBUFFER-1);
 493                         SDL_strlcat(Input_chat_buffer, ch, sizeof(Input_chat_buffer));
 494                 }
 495                 else
 496                 {
 497                         //Select said we had read data, but 0 bytes read means disconnected
 498                         AddChatCommandToQueue(CC_DISCONNECTED,NULL,0);
 499                         return NULL;
 500                 }
 501
 502         }
 503         return NULL;
 504 }
 505
 506
 507 const char * GetWordNum(int num, const char * l_String)
 508 {
 509         static char strreturn[600];
 510         static char ptokstr[600];
 511         char seps[10] = NOX(" \n\r\t");
 512         char *token,*strstart;
 513
 514         strstart = ptokstr;
 515
 516         SDL_strlcpy(ptokstr, l_String, sizeof(ptokstr));
 517
 518         token=strtok(ptokstr,seps);
 519
 520         for(int i=0;i!=num;i++)
 521         {
 522                 token=strtok(NULL,seps);
 523         }
 524         if(token)
 525         {
 526                 SDL_strlcpy(strreturn, token, sizeof(strreturn));
 527         }
 528         else
 529         {
 530                 return "";
 531         }
 532         //check for the ':' char....
 533         if(token[0]==':')
 534         {
 535                 //Its not pretty, but it works, return the rest of the string
 536                 SDL_strlcpy(strreturn, l_String+((token-strstart)+1), sizeof(strreturn));
 537         }
 538
 539         //return the appropriate response.
 540         return strreturn;
 541 }
 542
 543 int AddChatUser(const char *nickname)
 544 {
 545         Curruser = Firstuser;
 546         while(Curruser)
 547         {
 548                 if(SDL_strcasecmp(nickname,Curruser->nick_name)==0) return 0;
 549                 Curruser = Curruser->next;
 550         }
 551
 552         Curruser = Firstuser;
 553         if(Firstuser==NULL)
 554         {
 555                 Firstuser = (Chat_user *)malloc(sizeof(Chat_user));
 556                 SDL_assert(Firstuser);
 557                 SDL_strlcpy(Firstuser->nick_name, nickname, sizeof(Firstuser->nick_name));
 558                 Firstuser->next = NULL;
 559                 AddChatCommandToQueue(CC_USER_JOINING,nickname,strlen(nickname)+1);
 560                 return 1;
 561         }
 562         else
 563         {
 564                 while(Curruser->next)
 565                 {
 566                         Curruser = Curruser->next;
 567                 }
 568                 Curruser->next = (Chat_user *)malloc(sizeof(Chat_user));
 569                 Curruser = Curruser->next;
 570                 SDL_assert(Curruser);
 571                 SDL_strlcpy(Curruser->nick_name, nickname, sizeof(Curruser->nick_name));
 572                 Curruser->next = NULL;
 573                 AddChatCommandToQueue(CC_USER_JOINING,nickname,strlen(nickname)+1);
 574                 return 1;
 575         }
 576
 577 }
 578
 579 int RemoveChatUser(char *nickname)
 580 {
 581         Chat_user *prv_user = NULL;
 582
 583         Curruser = Firstuser;
 584         while(Curruser)
 585         {
 586                 if(SDL_strcasecmp(nickname,Curruser->nick_name)==0)
 587                 {
 588                         if(prv_user)
 589                         {
 590                                 prv_user->next = Curruser->next;
 591
 592                         }
 593                         else
 594                         {
 595                                 Firstuser = Curruser->next;
 596                         }
 597                         AddChatCommandToQueue(CC_USER_LEAVING,Curruser->nick_name,strlen(Curruser->nick_name)+1);
 598                         free(Curruser);
 599                         return 1;
 600                 }
 601                 prv_user = Curruser;
 602                 Curruser = Curruser->next;
 603         }
 604         return 0;
 605
 606 }
 607
 608 void RemoveAllChatUsers(void)
 609 {
 610         Chat_user *tmp_user = NULL;
 611         Curruser = Firstuser;
 612         while(Curruser)
 613         {
 614                 tmp_user = Curruser->next;
 615                 AddChatCommandToQueue(CC_USER_LEAVING,Curruser->nick_name,strlen(Curruser->nick_name)+1);
 616                 free(Curruser);
 617                 Curruser = tmp_user;
 618         }
 619         Firstuser = NULL;
 620 }
 621
 622
 623 char * ParseIRCMessage(char *Line, int iMode)
 624 {
 625         char szRemLine[MAXLOCALSTRING] ="";
 626         const char *pszTempStr;
 627         char szPrefix[MAXLOCALSTRING] = "";
 628         char szHackPrefix[MAXLOCALSTRING] = "";
 629         char szTarget[MAXLOCALSTRING] = "";
 630         char szNick[MAXLOCALSTRING] = "";
 631         char szCmd[MAXLOCALSTRING] = "";
 632         char szCTCPCmd[MAXLOCALSTRING] = "";
 633
 634         static char szResponse[MAXLOCALSTRING] = "";
 635
 636         int iNickLen;
 637         int iPrefixLen = 0;     // JAS: Get rid of optimized warning
 638
 639         if(strlen(Line)>=MAXLOCALSTRING)
 640         {
 641                 return NULL;
 642         }
 643         //Nick included....
 644         if(iMode==MSG_REMOTE)
 645         {
 646                 SDL_strlcpy(szRemLine, Line, sizeof(szRemLine));
 647                 //Start by getting the prefix
 648                 if(Line[0]==':')
 649                 {
 650                         //
 651                         pszTempStr=GetWordNum(0,Line+1);
 652                         SDL_strlcpy(szPrefix, pszTempStr, sizeof(szPrefix));
 653                         SDL_strlcpy(szHackPrefix, pszTempStr, sizeof(szHackPrefix));
 654                         SDL_strlcpy(szRemLine, Line+1+strlen(szPrefix), sizeof(szRemLine));
 655                 }
 656                 //Next, get the Nick
 657                 pszTempStr=strtok(szHackPrefix,"!");
 658                 if(pszTempStr)
 659                 {
 660                         SDL_strlcpy(szNick, pszTempStr, sizeof(szNick));
 661                 }
 662                 else
 663                 {
 664                         SDL_strlcpy(szNick, szPrefix, sizeof(szNick));
 665                 }
 666                 //strcpy(NewMsg.Nickname,szNick);
 667                 iNickLen=strlen(szNick);
 668                 iPrefixLen=strlen(szPrefix);
 669         }
 670         else if(iMode==MSG_LOCAL)
 671         {
 672                 SDL_strlcpy(szRemLine, Line, sizeof(szRemLine));
 673                 SDL_strlcpy(szNick, Nick_name, sizeof(szNick));
 674                 SDL_strlcpy(szPrefix, Nick_name, sizeof(szPrefix));
 675                 //strcpy(NewMsg.Nickname,szNick);
 676                 iNickLen=-2;
 677                 iPrefixLen=-2;
 678         }
 679         //Next is the command
 680         pszTempStr=GetWordNum(0,szRemLine);
 681         if(pszTempStr[0])
 682         {
 683                 SDL_strlcpy(szCmd, pszTempStr, sizeof(szCmd));
 684         }
 685         else
 686         {
 687                 //Shouldn't ever happen, but we can't be sure of what the host will send us.
 688                 return NULL;
 689         }
 690
 691         //Move the szRemLine string up
 692         SDL_strlcpy(szRemLine, Line+iPrefixLen+strlen(szCmd)+2, sizeof(szRemLine));
 693         //Now parse the commands!
 694         //printf("%s",szCmd);
 695         if(SDL_strcasecmp(szCmd,NOX("PRIVMSG"))==0)
 696         {
 697                 pszTempStr=GetWordNum(0,szRemLine);
 698                 SDL_strlcpy(szTarget, pszTempStr, sizeof(szTarget));
 699                 SDL_strlcpy(szRemLine, Line+iPrefixLen+strlen(szCmd)+strlen(szTarget)+4, sizeof(szRemLine));
 700                 if(szRemLine[0]==':')
 701                 {
 702                         SDL_strlcpy(szCTCPCmd, GetWordNum(0,szRemLine+1), sizeof(szCTCPCmd));
 703                         if(szCTCPCmd[strlen(szCTCPCmd)-1]==0x01) szCTCPCmd[strlen(szCTCPCmd)-1]=0x00;
 704
 705                 }
 706                 else
 707                 {
 708                         SDL_strlcpy(szCTCPCmd, GetWordNum(0,szRemLine), sizeof(szCTCPCmd));
 709                         if(szCTCPCmd[strlen(szCTCPCmd)-1]==0x01) szCTCPCmd[strlen(szCTCPCmd)-1]=0x00;
 710                 }
 711                 if(szCTCPCmd[0]==0x01)
 712                 {
 713                         //Handle ctcp message
 714                         SDL_strlcpy(szRemLine, Line+iPrefixLen+strlen(szCmd)+strlen(szTarget)+strlen(szCTCPCmd)+6, sizeof(szRemLine));
 715                         szRemLine[strlen(szRemLine)-1]='\0';//null out the ending 0x01
 716                         if(SDL_strcasecmp(szCTCPCmd+1,NOX("ACTION"))==0)
 717                         {
 718                                 //Posture
 719                                 SDL_snprintf(szResponse, sizeof(szResponse), "* %s %s", szNick, szRemLine);
 720                                 return szResponse;
 721                         }
 722                         if(iMode==MSG_LOCAL)
 723                         {
 724                                 SDL_strlcpy(szHackPrefix, Line+iPrefixLen+strlen(szCmd)+strlen(szTarget)+4, sizeof(szHackPrefix));
 725                                 szRemLine[strlen(szRemLine)-1]='\0';
 726                                 SDL_snprintf(szResponse, sizeof(szResponse), NOX("** CTCP %s %s %s"), szTarget, szCTCPCmd+1, szRemLine);
 727                                 return szResponse;
 728                         }
 729                         if(SDL_strcasecmp(szCTCPCmd+1,NOX("PING"))==0)
 730                         {
 731                                 SDL_snprintf(szResponse, sizeof(szResponse), NOX("/NOTICE %s :\001PING %s\001"), szNick, szRemLine);//Don't need the trailing \001 because szremline has it.
 732                                 SendChatString(szResponse,1);
 733                                 return NULL;
 734                         }
 735                         if(SDL_strcasecmp(szCTCPCmd+1,NOX("VERSION"))==0)
 736                         {
 737                                 //reply with a notice version & copyright
 738                                 //sprintf(szTempLine,"NOTICE %s :\001VERSION Copyright(c)\001\n",szNick);
 739
 740                                 return NULL;
 741                         }
 742                         SDL_strlcpy(szRemLine, 1 + GetWordNum(0,Line+iPrefixLen+strlen(szCmd)+strlen(szTarget)+4), sizeof(szRemLine));
 743                         szRemLine[strlen(szRemLine)-1]='\0';
 744                         SDL_snprintf(szResponse, sizeof(szResponse), NOX("** CTCP Message from %s (%s)"), szNick, szRemLine);
 745                         return szResponse;
 746
 747                 }
 748                 //differentiate between channel and private
 749                 if(szTarget[0]=='#')
 750                 {
 751                         pszTempStr=GetWordNum(0,szRemLine);
 752                         SDL_snprintf(szResponse, sizeof(szResponse), "[%s] %s", szNick, pszTempStr);
 753                         return szResponse;
 754                 }
 755                 else
 756                 {
 757                         if(iMode == MSG_LOCAL)
 758                         {
 759                                 pszTempStr=GetWordNum(0,szRemLine);
 760                                 SDL_snprintf(szResponse, sizeof(szResponse), NOX("Private Message to <%s>: %s"), szNick, pszTempStr);
 761                         }
 762                         else
 763                         {
 764                                 pszTempStr=GetWordNum(0,szRemLine);
 765                                 SDL_snprintf(szResponse, sizeof(szResponse), NOX("Private Message from <%s>: %s"), szNick, pszTempStr);
 766                         }
 767                         return szResponse;
 768                 }
 769
 770         }
 771         //don't handle any other messages locally.
 772         if(iMode==MSG_LOCAL)
 773         {
 774                 return NULL;
 775         }
 776
 777         if(SDL_strcasecmp(szCmd,NOX("NOTICE"))==0)
 778         {
 779
 780
 781                 pszTempStr=GetWordNum(0,szRemLine);
 782                 SDL_strlcpy(szTarget, pszTempStr, sizeof(szTarget));
 783                 SDL_strlcpy(szRemLine, Line+iPrefixLen+strlen(szCmd)+strlen(szTarget)+4, sizeof(szRemLine));
 784                 if(szRemLine[0]==':')
 785                 {
 786                         SDL_strlcpy(szCTCPCmd, GetWordNum(0,szRemLine+1), sizeof(szCTCPCmd));
 787                         if(szCTCPCmd[strlen(szCTCPCmd)-1]==0x01) szCTCPCmd[strlen(szCTCPCmd)-1]=0x00;
 788
 789                 }
 790                 else
 791                 {
 792                         SDL_strlcpy(szCTCPCmd, GetWordNum(0,szRemLine), sizeof(szCTCPCmd));
 793                         if(szCTCPCmd[strlen(szCTCPCmd)-1]==0x01) szCTCPCmd[strlen(szCTCPCmd)-1]=0x00;
 794                 }
 795                 if(szCTCPCmd[0]==0x01)
 796                 {
 797                         //Handle ctcp message
 798                         SDL_strlcpy(szRemLine, Line+iPrefixLen+strlen(szCmd)+strlen(szTarget)+strlen(szCTCPCmd)+6, sizeof(szRemLine));
 799                         szRemLine[strlen(szRemLine)-1]='\0';//null out the ending 0x01
 800                         if(SDL_strcasecmp(szCTCPCmd+1,NOX("PING"))==0)
 801                         {
 802                                 //This is a ping response, figure out time and print
 803                                 //sprintf(NewMsg.Message,"** Ping Response from %s: %ums",szNick,ulping);
 804                                 return NULL;
 805                         }
 806
 807                         //Default message
 808                         SDL_strlcpy(szRemLine, 1 + GetWordNum(0,Line+iPrefixLen+strlen(szCmd)+strlen(szTarget)+4), sizeof(szRemLine));
 809                         szRemLine[strlen(szRemLine)-1]='\0';
 810                         SDL_snprintf(szResponse, sizeof(szResponse), XSTR("** CTCP Message from %s (%s)",635), szNick, szRemLine);
 811                         return szResponse;
 812
 813                 }
 814                 SDL_snprintf(szResponse, sizeof(szResponse), "%s", szRemLine);
 815                 return NULL;
 816         }
 817         if(SDL_strcasecmp(szCmd,NOX("JOIN"))==0)
 818         {
 819                 //see if it is me!
 820                 if(SDL_strcasecmp(Nick_name,szNick)==0)
 821                 {
 822                         //Yup, it's me!
 823                         //if(strcmpi(szChat_channel,GetWordNum(0,szRemLine))==0)
 824                         //{
 825                                 Joined_channel = 1;
 826                                 if(SDL_strcasecmp(szChat_channel,NOX("#autoselect"))==0)
 827                                 {
 828                                         SDL_strlcpy(szChat_channel, GetWordNum(0,szRemLine), sizeof(szChat_channel));
 829                                         AddChatCommandToQueue(CC_YOURCHANNEL,szChat_channel,strlen(szChat_channel)+1);
 830
 831                                 }
 832                                 //CC_YOURCHANNEL
 833                         //}
 834                 }
 835                                 AddChatUser(szNick);
 836
 837
 838                 pszTempStr=GetWordNum(0,szRemLine);
 839                 SDL_strlcpy(szTarget, pszTempStr, sizeof(szTarget));
 840                 //strcpy(szRemLine,Line+iPrefixLen+strlen(szCmd)+strlen(szTarget)+3);
 841
 842                 //strcpy(NewMsg.Channel,szTarget);
 843
 844                 AddChatUser(szNick);
 845                 SDL_snprintf(szResponse, sizeof(szResponse), XSTR("** %s has joined %s",636), szNick, szTarget);
 846                 return NULL;//szResponse;
 847                 //Add them to the userlist too!
 848         }
 849         if(SDL_strcasecmp(szCmd,NOX("PART"))==0)
 850         {
 851                 pszTempStr=GetWordNum(0,szRemLine);
 852                 SDL_strlcpy(szTarget, pszTempStr, sizeof(szTarget));
 853                 SDL_strlcpy(szRemLine, Line+iPrefixLen+strlen(szCmd)+strlen(szTarget)+3, sizeof(szRemLine));
 854                 //see if it is me!
 855                 if(SDL_strcasecmp(Nick_name,szNick)==0)
 856                 {
 857                         //Yup, it's me!
 858                         //szChat_channel[0]=NULL;
 859                         RemoveAllChatUsers();
 860                 }
 861
 862                 RemoveChatUser(szNick);
 863                 return NULL;
 864                 //Remove them to the userlist too!
 865         }
 866         if(SDL_strcasecmp(szCmd,NOX("KICK"))==0)
 867         {
 868                 pszTempStr=GetWordNum(0,szRemLine);
 869                 SDL_strlcpy(szTarget, pszTempStr, sizeof(szTarget));
 870                 pszTempStr=GetWordNum(1,szRemLine);
 871                 SDL_strlcpy(szHackPrefix, pszTempStr, sizeof(szHackPrefix));
 872                 pszTempStr=GetWordNum(2,szRemLine);
 873                 //see if it is me!
 874                 if(SDL_strcasecmp(Nick_name,GetWordNum(1,szRemLine))==0)
 875                 {
 876                         //Yup, it's me!
 877                         szChat_channel[0]='\0';
 878                         //bNewStatus=1;
 879                         AddChatCommandToQueue(CC_KICKED,NULL,0);
 880                         RemoveAllChatUsers();
 881                 }
 882                 SDL_snprintf(szResponse, sizeof(szResponse), XSTR("*** %s has kicked %s from channel %s (%s)",637), szNick, szHackPrefix, szTarget, pszTempStr);
 883                 //Remove them to the userlist too!
 884                 RemoveChatUser(szNick);
 885                 return szResponse;
 886
 887         }
 888         if(SDL_strcasecmp(szCmd,NOX("NICK"))==0)
 889         {
 890       //see if it is me!
 891                 if(SDL_strcasecmp(Nick_name,szNick)==0)
 892                 {
 893                         //Yup, it's me!
 894                         SDL_strlcpy(Nick_name, GetWordNum(0,szRemLine), sizeof(Nick_name));
 895                 }
 896                 char nicks[70];
 897                 SDL_snprintf(nicks, sizeof(nicks), "%s %s", szNick, GetWordNum(0,szRemLine));
 898                 AddChatCommandToQueue(CC_NICKCHANGED,nicks,strlen(nicks)+1);
 899                 RemoveChatUser(szNick);
 900                 AddChatUser(GetWordNum(0,szRemLine));
 901           SDL_snprintf(szResponse, sizeof(szResponse), XSTR("*** %s is now known as %s",638), szNick, GetWordNum(0,szRemLine));
 902                 return szResponse;
 903         }
 904         if(SDL_strcasecmp(szCmd,NOX("PING"))==0)
 905         {
 906                 //respond with pong (GetWordNum(0,szRemLine))
 907                 SDL_snprintf(szResponse, sizeof(szResponse), NOX("/PONG :%s"), GetWordNum(0,szRemLine));
 908                 SendChatString(szResponse,1);
 909                 return NULL;
 910         }
 911         if(SDL_strcasecmp(szCmd,NOX("MODE"))==0)
 912         {
 913                 //Channel Mode info
 914                 return NULL;
 915         }
 916
 917
 918         if(SDL_strcasecmp(szCmd,"401")==0)
 919         {
 920                 //This is whois user info, we can get their tracker info from here.  -5
 921                 char szWhoisUser[33];
 922                 SDL_strlcpy(szWhoisUser, GetWordNum(1,szRemLine), sizeof(szWhoisUser));
 923                 Getting_user_tracker_error = 1;
 924                 Getting_user_channel_error = 1;
 925
 926                 SDL_snprintf(szResponse, sizeof(szResponse), XSTR("**Error: %s is not online!",639), szWhoisUser);
 927                 return szResponse;
 928
 929         }
 930         if(SDL_strcasecmp(szCmd,"311")==0)
 931         {
 932                 char szWhoisUser[33];
 933                 SDL_strlcpy(szWhoisUser, GetWordNum(1,szRemLine), sizeof(szWhoisUser));
 934                 //This is whois user info, we can get their tracker info from here.  -5
 935                 //if(strcmpi(Getting_user_tracker_info_for,szWhoisUser)==0)
 936                 //{
 937                         SDL_strlcpy(User_req_tracker_id, GetWordNum(5,szRemLine), sizeof(User_req_tracker_id));
 938                 //}
 939                 return NULL;
 940         }
 941         if(SDL_strcasecmp(szCmd,"319")==0)
 942         {
 943                 char szWhoisUser[33];
 944                 SDL_strlcpy(szWhoisUser, GetWordNum(1,szRemLine), sizeof(szWhoisUser));
 945                 //This is whois channel info -- what channel they are on                -2
 946                 //if(strcmpi(Getting_user_channel_info_for,szWhoisUser)==0)
 947                 //{
 948                         SDL_strlcpy(User_req_channel, GetWordNum(2,szRemLine), sizeof(User_req_channel));
 949                 //}
 950                 return NULL;
 951         }
 952
 953         //End of whois and we didn't get a channel means they aren't in a channel.
 954         if(SDL_strcasecmp(szCmd,"318")==0)
 955         {
 956                 if(!*User_req_channel)
 957                 {
 958                         User_req_channel[0] = '*';
 959                 }
 960         }
 961
 962
 963         if(SDL_strcasecmp(szCmd,"321")==0)
 964         {
 965                 //start of channel list
 966                 FlushChannelList();
 967                 GettingChannelList = 1;
 968                 return NULL;
 969         }
 970         if(SDL_strcasecmp(szCmd,"322")==0)
 971         {
 972                 //channel list data
 973                 if(GettingChannelList == 1)
 974                 {
 975                         char channel_list_name[33];
 976                         char sztopic[200];
 977                         SDL_strlcpy(sztopic, GetWordNum(3,szRemLine), sizeof(sztopic));
 978                         SDL_strlcpy(channel_list_name, GetWordNum(1,szRemLine), sizeof(channel_list_name));
 979                         AddChannel(channel_list_name,(short)atoi(GetWordNum(2,szRemLine)),sztopic);
 980                 }
 981                 return NULL;
 982         }
 983         if(SDL_strcasecmp(szCmd,"323")==0)
 984         {
 985                 //end of channel list
 986                 GettingChannelList = 2;
 987                 return NULL;
 988         }
 989         if(SDL_strcasecmp(szCmd,"324")==0)
 990         {
 991                 //Channel Mode info
 992                 return NULL;
 993         }
 994
 995         if(SDL_strcasecmp(szCmd,"332")==0)
 996                 {
 997                 //Channel Topic, update status bar.
 998                 if(SDL_strcasecmp(szChat_channel,szTarget)==0)
 999                 {
1000                         //strncpy(szChanTopic,GetWordNum(2,szRemLine),70);
1001                 }
1002                 //sprintf(NewMsg.Message,"*** %s has changed the topic to: %s",szNick,GetWordNum(2,szRemLine));
1003
1004                 return NULL;
1005         }
1006         if(SDL_strcasecmp(szCmd,NOX("TOPIC"))==0)
1007         {
1008                 //Channel Topic, update status bar.
1009                 if(SDL_strcasecmp(szChat_channel,szTarget)==0)
1010                 {
1011                         //strncpy(szChanTopic,GetWordNum(1,szRemLine),70);
1012                 }
1013                 //sprintf(NewMsg.Message,"*** %s has changed the topic to: %s",szNick,GetWordNum(1,szRemLine));
1014                 return NULL;
1015         }
1016         if(SDL_strcasecmp(szCmd,NOX("QUIT"))==0)
1017         {
1018                 //Remove the user!
1019                 RemoveChatUser(szNick);
1020                 return NULL;
1021         }
1022         if(SDL_strcasecmp(szCmd,"376")==0) //end of motd, trigger autojoin...
1023         {
1024                 if (!Chat_server_connected)
1025                 {
1026                         Chat_server_connected=1;
1027                 }
1028
1029                 // end of motd
1030                 SDL_strlcpy(szResponse, PXO_CHAT_END_OF_MOTD_PREFIX, sizeof(szResponse));
1031                 return szResponse;
1032         }
1033         if((SDL_strcasecmp(szCmd,"377")==0)||
1034                 (SDL_strcasecmp(szCmd,"372")==0)||
1035                 (SDL_strcasecmp(szCmd,"372")==0)
1036
1037                 )
1038         {
1039                 //Stip the message, and display it.
1040                 pszTempStr=GetWordNum(3,Line);
1041                 SDL_strlcpy(szResponse, PXO_CHAT_MOTD_PREFIX, sizeof(szResponse));
1042                 SDL_strlcat(szResponse, pszTempStr, sizeof(szResponse));
1043                 return szResponse;
1044         }
1045         //Ignore these messages
1046         if(((SDL_strcasecmp(szCmd,"366")==0))||
1047                 (SDL_strcasecmp(szCmd,"333")==0) || //Who set the topic
1048                  (SDL_strcasecmp(szCmd,"329")==0))    //Time Channel created
1049                  /*
1050                  (SDL_strcasecmp(szCmd,"305")==0) ||
1051                  (SDL_strcasecmp(szCmd,"306")==0) ||
1052                  (SDL_strcasecmp(szCmd,"311")==0) || //WHOIS stuff
1053                  (SDL_strcasecmp(szCmd,"312")==0) ||
1054                  (SDL_strcasecmp(szCmd,"313")==0) ||
1055                  (SDL_strcasecmp(szCmd,"317")==0) ||
1056                  (SDL_strcasecmp(szCmd,"318")==0) ||
1057                  (SDL_strcasecmp(szCmd,"319")==0) ||
1058                  */
1059
1060         {
1061                 return NULL;
1062         }
1063         if(SDL_strcasecmp(szCmd,"353")==0)
1064         {
1065
1066                 //Names in the channel.
1067                 pszTempStr = GetWordNum(3,Line+iPrefixLen+strlen(szCmd)+2);
1068                 SDL_strlcpy(szRemLine, pszTempStr, sizeof(szRemLine));
1069                 pszTempStr = strtok(szRemLine," ");
1070
1071                 while(pszTempStr)
1072                 {
1073                         if(pszTempStr[0]=='@')
1074                         {
1075                                 AddChatUser(pszTempStr+1);
1076                         }
1077                         else if(pszTempStr[0]=='+')
1078                         {
1079                                 AddChatUser(pszTempStr+1);
1080                         }
1081                         else
1082                         {
1083                                 AddChatUser(pszTempStr);
1084                         }
1085                         pszTempStr=strtok(NULL," ");
1086                 }
1087                 return NULL;
1088         }
1089         //MOTD Codes
1090         if((SDL_strcasecmp(szCmd,"001")==0)||
1091            (SDL_strcasecmp(szCmd,"002")==0)||
1092            (SDL_strcasecmp(szCmd,"003")==0)||
1093            (SDL_strcasecmp(szCmd,"004")==0)||
1094            (SDL_strcasecmp(szCmd,"251")==0)||
1095            (SDL_strcasecmp(szCmd,"254")==0)||
1096            (SDL_strcasecmp(szCmd,"255")==0)||
1097            (SDL_strcasecmp(szCmd,"265")==0)||
1098            (SDL_strcasecmp(szCmd,"375")==0)||
1099            (SDL_strcasecmp(szCmd,"372")==0)||
1100            (SDL_strcasecmp(szCmd,"375")==0)
1101            )
1102         {
1103                 // Stip the message, and display it.
1104                 // pszTempStr = GetWordNum(3, Line);
1105                 // strcpy(szResponse, PXO_CHAT_MOTD_PREFIX);
1106                 // strcat(szResponse, pszTempStr);
1107                 return NULL;
1108                 // return szResponse;
1109         }
1110         if(SDL_strcasecmp(szCmd,"432")==0)
1111         {
1112                 //Channel Mode info
1113                 SDL_strlcpy(szResponse, XSTR("Your nickname contains invalid characters",640), sizeof(szResponse));
1114                 AddChatCommandToQueue(CC_DISCONNECTED,NULL,0);
1115                 return szResponse;
1116         }
1117         if(SDL_strcasecmp(szCmd,"433")==0)
1118         {
1119                 //Channel Mode info
1120                 char new_nick[33];
1121                 SDL_snprintf(new_nick, sizeof(new_nick), "%s%d", Original_nick_name, Nick_variety);
1122                 SDL_strlcpy(Nick_name, new_nick, sizeof(Nick_name));
1123                 Nick_variety++;
1124                 SDL_snprintf(szResponse, sizeof(szResponse), NOX("/NICK %s"), new_nick);
1125                 SendChatString(szResponse,1);
1126                 return NULL;
1127         }
1128         //Default print
1129         SDL_strlcpy(szResponse, Line, sizeof(szResponse));
1130         //return szResponse;
1131         return NULL;
1132
1133 }
1134
1135
1136 void AddChatCommandToQueue(int command,const void *data,int len)
1137 {
1138         Currcommand = Firstcommand;
1139         if(Firstcommand==NULL)
1140         {
1141                 Firstcommand = (Chat_command *)malloc(sizeof(Chat_command));
1142                 SDL_assert(Firstcommand);
1143                 Firstcommand->next = NULL;
1144                 Currcommand = Firstcommand;
1145         }
1146         else
1147         {
1148                 while(Currcommand->next)
1149                 {
1150                         Currcommand = Currcommand->next;
1151                 }
1152                 Currcommand->next = (Chat_command *)malloc(sizeof(Chat_command));
1153                 SDL_assert(Currcommand->next);
1154                 Currcommand = Currcommand->next;
1155         }
1156         Currcommand->command = (short)command;
1157         if(len&&data) memcpy(&Currcommand->data,data,len);
1158         Currcommand->next = NULL;
1159         return;
1160 }
1161
1162 Chat_command *GetChatCommandFromQueue(void)
1163 {
1164         static Chat_command response_cmd;
1165         Chat_command *tmp_cmd;
1166         if(!Firstcommand) return NULL;
1167         Currcommand = Firstcommand;
1168         memcpy(&response_cmd,Currcommand,sizeof(Chat_command));
1169         tmp_cmd = Currcommand->next;
1170         free(Firstcommand);
1171         Firstcommand = tmp_cmd;
1172         return &response_cmd;
1173 }
1174
1175 void FlushChatCommandQueue(void)
1176 {
1177         Chat_command *tmp_cmd;
1178         Currcommand = Firstcommand;
1179
1180         while(Currcommand)
1181         {
1182                 tmp_cmd = Currcommand->next;
1183                 free(Currcommand);
1184                 Currcommand = tmp_cmd;
1185         }
1186         Firstcommand = NULL;
1187 }
1188
1189
1190 void FlushChannelList(void)
1191 {
1192         Chat_channel *tmp_chan;
1193         Currchannel = Firstchannel;
1194
1195         while(Currchannel)
1196         {
1197                 tmp_chan = Currchannel->next;
1198                 free(Currchannel);
1199                 Currchannel = tmp_chan;
1200         }
1201         Firstchannel = NULL;
1202
1203
1204 }
1205 char *GetChannelList(void)
1206 {
1207         int ichan_list_length = 0;
1208         char sznumusers[10];
1209
1210         if(GettingChannelList != 2) return NULL;
1211         if(!Socket_connected) return NULL;
1212
1213         if(Chan_list)
1214         {
1215                 free(Chan_list);
1216                 Chan_list = NULL;
1217         }
1218
1219
1220         Currchannel = Firstchannel;
1221         while(Currchannel)
1222         {
1223                 ichan_list_length += strlen(Currchannel->topic)+1+strlen(Currchannel->channel_name)+1+5;//1 for the space, and 4 for the number of users 0000-9999 + space
1224                 Currchannel = Currchannel->next;
1225         }
1226         Currchannel = Firstchannel;
1227         Chan_list = (char *)malloc(ichan_list_length+1);
1228         Chan_list[0] = '\0';
1229         while(Currchannel)
1230         {
1231                 strcat(Chan_list,"$");
1232                 strcat(Chan_list,Currchannel->channel_name);
1233                 strcat(Chan_list," ");
1234                 sprintf(sznumusers,"%d ",Currchannel->users);
1235                 strcat(Chan_list,sznumusers);
1236                 strcat(Chan_list,Currchannel->topic);//fgets
1237                 strcat(Chan_list," ");
1238                 Currchannel = Currchannel->next;
1239         }
1240         FlushChannelList();
1241         GettingChannelList = 0;
1242         return Chan_list;
1243 }
1244
1245 void AddChannel(char *channel,unsigned short numusers,char *topic)
1246 {
1247         Currchannel = Firstchannel;
1248         if(Firstchannel==NULL)
1249         {
1250                 Firstchannel = (Chat_channel *)malloc(sizeof(Chat_channel));
1251                 SDL_assert(Firstchannel);
1252                 SDL_strlcpy(Firstchannel->channel_name, channel, sizeof(Firstchannel->channel_name));
1253                 SDL_strlcpy(Firstchannel->topic, topic, sizeof(Firstchannel->topic));
1254                 Firstchannel->users = numusers;
1255                 Firstchannel->next = NULL;
1256                 Currchannel = Firstchannel;
1257         }
1258         else
1259         {
1260                 while(Currchannel->next)
1261                 {
1262                         Currchannel = Currchannel->next;
1263                 }
1264                 Currchannel->next = (Chat_channel *)malloc(sizeof(Chat_channel));
1265                 SDL_assert(Currchannel->next);
1266                 Currchannel = Currchannel->next;
1267                 SDL_strlcpy(Currchannel->channel_name, channel, sizeof(Currchannel->channel_name));
1268                 SDL_strlcpy(Currchannel->topic, topic, sizeof(Currchannel->topic));
1269                 Currchannel->users = numusers;
1270         }
1271         Currchannel->next = NULL;
1272         return;
1273 }
1274
1275
1276 char *GetTrackerIdByUser(char *nickname)
1277 {
1278         char szWhoisCmd[100];
1279
1280
1281         if(GettingUserTID)
1282         {
1283                 if(Getting_user_tracker_error)
1284                 {
1285                         Getting_user_tracker_error = 0;
1286                         GettingUserTID = 0;
1287                         return (char *)-1;
1288                 }
1289
1290                 if(*User_req_tracker_id)
1291                 {
1292                         GettingUserTID = 0;
1293                         return User_req_tracker_id;
1294                 }
1295         }
1296         else
1297         {
1298                 SDL_strlcpy(Getting_user_tracker_info_for, nickname, sizeof(Getting_user_tracker_info_for));
1299                 SDL_snprintf(szWhoisCmd, sizeof(szWhoisCmd), NOX("/WHOIS %s"), nickname);
1300                 User_req_tracker_id[0] = '\0';
1301                 SendChatString(szWhoisCmd,1);
1302                 GettingUserTID = 1;
1303         }
1304         return NULL;
1305 }
1306
1307 char *GetChannelByUser(char *nickname)
1308 {
1309         char szWhoisCmd[100];
1310
1311         if(GettingUserChannel)
1312         {
1313                 if(Getting_user_channel_error)
1314                 {
1315                         Getting_user_channel_error = 0;
1316                         GettingUserChannel = 0;
1317                         return (char *)-1;
1318                 }
1319                 if(*User_req_channel)
1320                 {
1321                         GettingUserChannel = 0;
1322                         return User_req_channel;
1323                 }
1324         }
1325         else
1326         {
1327                 SDL_strlcpy(Getting_user_channel_info_for, nickname, sizeof(Getting_user_channel_info_for));
1328                 User_req_channel[0] = '\0';
1329                 SDL_snprintf(szWhoisCmd, sizeof(szWhoisCmd), NOX("/WHOIS %s"), nickname);
1330                 SendChatString(szWhoisCmd,1);
1331                 GettingUserChannel = 1;
1332         }
1333         return NULL;
1334 }
1335