src/server/server.c

   1 /*
   2  * OpenDispense 2
   3  * UCC (University [of WA] Computer Club) Electronic Accounting System
   4  *
   5  * server.c - Client Server Code
   6  *
   7  * This file is licenced under the 3-clause BSD Licence. See the file
   8  * COPYING for full details.
   9  */
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12 #include "common.h"
  13 #include <sys/socket.h>
  14 #include <netinet/in.h>
  15 #include <arpa/inet.h>
  16 #include <unistd.h>
  17 #include <string.h>
  18 #include <limits.h>
  19 #include <stdarg.h>
  20 #include <signal.h>
  21
  22 #define DEBUG_TRACE_CLIENT      0
  23
  24 // Statistics
  25 #define MAX_CONNECTION_QUEUE    5
  26 #define INPUT_BUFFER_SIZE       256
  27 #define CLIENT_TIMEOUT  10      // Seconds
  28
  29 #define HASH_TYPE       SHA1
  30 #define HASH_LENGTH     20
  31
  32 #define MSG_STR_TOO_LONG        "499 Command too long (limit "EXPSTR(INPUT_BUFFER_SIZE)")\n"
  33
  34 // === TYPES ===
  35 typedef struct sClient
  36 {
  37          int    Socket; // Client socket ID
  38          int    ID;     // Client ID
  39
  40          int    bIsTrusted;     // Is the connection from a trusted host/port
  41
  42         char    *Username;
  43         char    Salt[9];
  44
  45          int    UID;
  46          int    EffectiveUID;
  47          int    bIsAuthed;
  48 }       tClient;
  49
  50 // === PROTOTYPES ===
  51 void    Server_Start(void);
  52 void    Server_Cleanup(void);
  53 void    Server_HandleClient(int Socket, int bTrusted);
  54 void    Server_ParseClientCommand(tClient *Client, char *CommandString);
  55 // --- Commands ---
  56 void    Server_Cmd_USER(tClient *Client, char *Args);
  57 void    Server_Cmd_PASS(tClient *Client, char *Args);
  58 void    Server_Cmd_AUTOAUTH(tClient *Client, char *Args);
  59 void    Server_Cmd_SETEUSER(tClient *Client, char *Args);
  60 void    Server_Cmd_ENUMITEMS(tClient *Client, char *Args);
  61 void    Server_Cmd_ITEMINFO(tClient *Client, char *Args);
  62 void    Server_Cmd_DISPENSE(tClient *Client, char *Args);
  63 void    Server_Cmd_GIVE(tClient *Client, char *Args);
  64 void    Server_Cmd_DONATE(tClient *Client, char *Args);
  65 void    Server_Cmd_ADD(tClient *Client, char *Args);
  66 void    Server_Cmd_SET(tClient *Client, char *Args);
  67 void    Server_Cmd_ENUMUSERS(tClient *Client, char *Args);
  68 void    Server_Cmd_USERINFO(tClient *Client, char *Args);
  69 void    _SendUserInfo(tClient *Client, int UserID);
  70 void    Server_Cmd_USERADD(tClient *Client, char *Args);
  71 void    Server_Cmd_USERFLAGS(tClient *Client, char *Args);
  72 // --- Helpers ---
  73 void    Debug(tClient *Client, const char *Format, ...);
  74  int    sendf(int Socket, const char *Format, ...);
  75  int    Server_int_ParseArgs(int bUseLongArg, char *ArgStr, ...);
  76  int    Server_int_ParseFlags(tClient *Client, const char *Str, int *Mask, int *Value);
  77
  78 // === CONSTANTS ===
  79 // - Commands
  80 const struct sClientCommand {
  81         const char      *Name;
  82         void    (*Function)(tClient *Client, char *Arguments);
  83 }       gaServer_Commands[] = {
  84         {"USER", Server_Cmd_USER},
  85         {"PASS", Server_Cmd_PASS},
  86         {"AUTOAUTH", Server_Cmd_AUTOAUTH},
  87         {"SETEUSER", Server_Cmd_SETEUSER},
  88         {"ENUM_ITEMS", Server_Cmd_ENUMITEMS},
  89         {"ITEM_INFO", Server_Cmd_ITEMINFO},
  90         {"DISPENSE", Server_Cmd_DISPENSE},
  91         {"GIVE", Server_Cmd_GIVE},
  92         {"DONATE", Server_Cmd_DONATE},
  93         {"ADD", Server_Cmd_ADD},
  94         {"SET", Server_Cmd_SET},
  95         {"ENUM_USERS", Server_Cmd_ENUMUSERS},
  96         {"USER_INFO", Server_Cmd_USERINFO},
  97         {"USER_ADD", Server_Cmd_USERADD},
  98         {"USER_FLAGS", Server_Cmd_USERFLAGS}
  99 };
 100 #define NUM_COMMANDS    ((int)(sizeof(gaServer_Commands)/sizeof(gaServer_Commands[0])))
 101
 102 // === GLOBALS ===
 103 // - Configuration
 104  int    giServer_Port = 11020;
 105  int    gbServer_RunInBackground = 0;
 106 char    *gsServer_LogFile = "/var/log/dispsrv.log";
 107 char    *gsServer_ErrorLog = "/var/log/dispsrv.err";
 108 // - State variables
 109  int    giServer_Socket;        // Server socket
 110  int    giServer_NextClientID = 1;      // Debug client ID
 111
 112
 113 // === CODE ===
 114 /**
 115  * \brief Open listenting socket and serve connections
 116  */
 117 void Server_Start(void)
 118 {
 119          int    client_socket;
 120         struct sockaddr_in      server_addr, client_addr;
 121
 122         atexit(Server_Cleanup);
 123         // Ignore SIGPIPE (stops crashes when the client exits early)
 124         signal(SIGPIPE, SIG_IGN);
 125
 126         // Create Server
 127         giServer_Socket = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
 128         if( giServer_Socket < 0 ) {
 129                 fprintf(stderr, "ERROR: Unable to create server socket\n");
 130                 return ;
 131         }
 132
 133         // Make listen address
 134         memset(&server_addr, 0, sizeof(server_addr));
 135         server_addr.sin_family = AF_INET;       // Internet Socket
 136         server_addr.sin_addr.s_addr = htonl(INADDR_ANY);        // Listen on all interfaces
 137         server_addr.sin_port = htons(giServer_Port);    // Port
 138
 139         // Bind
 140         if( bind(giServer_Socket, (struct sockaddr *) &server_addr, sizeof(server_addr)) < 0 ) {
 141                 fprintf(stderr, "ERROR: Unable to bind to 0.0.0.0:%i\n", giServer_Port);
 142                 perror("Binding");
 143                 return ;
 144         }
 145
 146 #if 0
 147         if( gbServer_RunInBackground )
 148         {
 149                 int pid = fork();
 150                 if( pid == -1 ) {
 151                         fprintf(stderr, "ERROR: Unable to fork\n");
 152                         perror("fork background");
 153                         exit(-1);
 154                 }
 155                 if( pid != 0 ) {
 156                         // Parent, quit
 157                         exit(0);
 158                 }
 159                 // In child, sort out stdin/stdout
 160                 reopen(0, "/dev/null", O_READ);
 161                 reopen(1, gsServer_LogFile, O_CREAT|O_APPEND);
 162                 reopen(2, gsServer_ErrorLog, O_CREAT|O_APPEND);
 163         }
 164 #endif
 165
 166         // Listen
 167         if( listen(giServer_Socket, MAX_CONNECTION_QUEUE) < 0 ) {
 168                 fprintf(stderr, "ERROR: Unable to listen to socket\n");
 169                 perror("Listen");
 170                 return ;
 171         }
 172
 173         printf("Listening on 0.0.0.0:%i\n", giServer_Port);
 174
 175         // write pidfile
 176         {
 177                 FILE *fp = fopen("/var/run/dispsrv.pid", "w");
 178                 fprintf(fp, "%i", getpid());
 179                 fclose(fp);
 180         }
 181
 182         for(;;)
 183         {
 184                 uint    len = sizeof(client_addr);
 185                  int    bTrusted = 0;
 186
 187                 // Accept a connection
 188                 client_socket = accept(giServer_Socket, (struct sockaddr *) &client_addr, &len);
 189                 if(client_socket < 0) {
 190                         fprintf(stderr, "ERROR: Unable to accept client connection\n");
 191                         return ;
 192                 }
 193
 194                 // Set a timeout on the user conneciton
 195                 {
 196                         struct timeval tv;
 197                         tv.tv_sec = CLIENT_TIMEOUT;
 198                         tv.tv_usec = 0;
 199                         if( setsockopt(client_socket, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) )
 200                         {
 201                                 perror("setsockopt");
 202                                 return ;
 203                         }
 204                 }
 205
 206                 // Debug: Print the connection string
 207                 if(giDebugLevel >= 2) {
 208                         char    ipstr[INET_ADDRSTRLEN];
 209                         inet_ntop(AF_INET, &client_addr.sin_addr, ipstr, INET_ADDRSTRLEN);
 210                         printf("Client connection from %s:%i\n",
 211                                 ipstr, ntohs(client_addr.sin_port));
 212                 }
 213
 214                 // Doesn't matter what, localhost is trusted
 215                 if( ntohl( client_addr.sin_addr.s_addr ) == 0x7F000001 )
 216                         bTrusted = 1;
 217
 218                 // Trusted Connections
 219                 if( ntohs(client_addr.sin_port) < 1024 )
 220                 {
 221                         // TODO: Make this runtime configurable
 222                         switch( ntohl( client_addr.sin_addr.s_addr ) )
 223                         {
 224                         case 0x7F000001:        // 127.0.0.1    localhost
 225                 //      case 0x825F0D00:        // 130.95.13.0
 226                         case 0x825F0D07:        // 130.95.13.7  motsugo
 227                         case 0x825F0D11:        // 130.95.13.17 mermaid
 228                         case 0x825F0D12:        // 130.95.13.18 mussel
 229                         case 0x825F0D17:        // 130.95.13.23 martello
 230                         case 0x825F0D42:        // 130.95.13.66 heathred
 231                                 bTrusted = 1;
 232                                 break;
 233                         default:
 234                                 break;
 235                         }
 236                 }
 237
 238                 // TODO: Multithread this?
 239                 Server_HandleClient(client_socket, bTrusted);
 240
 241                 close(client_socket);
 242         }
 243 }
 244
 245 void Server_Cleanup(void)
 246 {
 247         printf("\nClose(%i)\n", giServer_Socket);
 248         close(giServer_Socket);
 249         unlink("/var/run/dispsrv");
 250 }
 251
 252 /**
 253  * \brief Reads from a client socket and parses the command strings
 254  * \param Socket        Client socket number/handle
 255  * \param bTrusted      Is the client trusted?
 256  */
 257 void Server_HandleClient(int Socket, int bTrusted)
 258 {
 259         char    inbuf[INPUT_BUFFER_SIZE];
 260         char    *buf = inbuf;
 261          int    remspace = INPUT_BUFFER_SIZE-1;
 262          int    bytes = -1;
 263         tClient clientInfo;
 264
 265         memset(&clientInfo, 0, sizeof(clientInfo));
 266
 267         // Initialise Client info
 268         clientInfo.Socket = Socket;
 269         clientInfo.ID = giServer_NextClientID ++;
 270         clientInfo.bIsTrusted = bTrusted;
 271         clientInfo.EffectiveUID = -1;
 272
 273         // Read from client
 274         /*
 275          * Notes:
 276          * - The `buf` and `remspace` variables allow a line to span several
 277          *   calls to recv(), if a line is not completed in one recv() call
 278          *   it is saved to the beginning of `inbuf` and `buf` is updated to
 279          *   the end of it.
 280          */
 281         // TODO: Use select() instead (to give a timeout)
 282         while( (bytes = recv(Socket, buf, remspace, 0)) > 0 )
 283         {
 284                 char    *eol, *start;
 285                 buf[bytes] = '\0';      // Allow us to use stdlib string functions on it
 286
 287                 // Split by lines
 288                 start = inbuf;
 289                 while( (eol = strchr(start, '\n')) )
 290                 {
 291                         *eol = '\0';
 292
 293                         Server_ParseClientCommand(&clientInfo, start);
 294
 295                         start = eol + 1;
 296                 }
 297
 298                 // Check if there was an incomplete line
 299                 if( *start != '\0' ) {
 300                          int    tailBytes = bytes - (start-buf);
 301                         // Roll back in buffer
 302                         memcpy(inbuf, start, tailBytes);
 303                         remspace -= tailBytes;
 304                         if(remspace == 0) {
 305                                 send(Socket, MSG_STR_TOO_LONG, sizeof(MSG_STR_TOO_LONG), 0);
 306                                 buf = inbuf;
 307                                 remspace = INPUT_BUFFER_SIZE - 1;
 308                         }
 309                 }
 310                 else {
 311                         buf = inbuf;
 312                         remspace = INPUT_BUFFER_SIZE - 1;
 313                 }
 314         }
 315
 316         // Check for errors
 317         if( bytes < 0 ) {
 318                 fprintf(stderr, "ERROR: Unable to recieve from client on socket %i\n", Socket);
 319                 return ;
 320         }
 321
 322         if(giDebugLevel >= 2) {
 323                 printf("Client %i: Disconnected\n", clientInfo.ID);
 324         }
 325 }
 326
 327 /**
 328  * \brief Parses a client command and calls the required helper function
 329  * \param Client        Pointer to client state structure
 330  * \param CommandString Command from client (single line of the command)
 331  * \return Heap String to return to the client
 332  */
 333 void Server_ParseClientCommand(tClient *Client, char *CommandString)
 334 {
 335         char    *command, *args;
 336          int    i;
 337
 338         if( giDebugLevel >= 2 )
 339                 Debug(Client, "Server_ParseClientCommand: (CommandString = '%s')", CommandString);
 340
 341         if( Server_int_ParseArgs(1, CommandString, &command, &args, NULL) )
 342         {
 343                 if( command == NULL )   return ;
 344 //              printf("command=%s, args=%s\n", command, args);
 345                 // Is this an error? (just ignore for now)
 346                 //args = "";
 347         }
 348
 349
 350         // Find command
 351         for( i = 0; i < NUM_COMMANDS; i++ )
 352         {
 353                 if(strcmp(command, gaServer_Commands[i].Name) == 0) {
 354                         if( giDebugLevel >= 2 )
 355                                 Debug(Client, "CMD %s - \"%s\"", command, args);
 356                         gaServer_Commands[i].Function(Client, args);
 357                         return ;
 358                 }
 359         }
 360
 361         sendf(Client->Socket, "400 Unknown Command\n");
 362 }
 363
 364 // ---
 365 // Commands
 366 // ---
 367 /**
 368  * \brief Set client username
 369  *
 370  * Usage: USER <username>
 371  */
 372 void Server_Cmd_USER(tClient *Client, char *Args)
 373 {
 374         char    *username;
 375
 376         if( Server_int_ParseArgs(0, Args, &username, NULL) )
 377         {
 378                 sendf(Client->Socket, "407 USER takes 1 argument\n");
 379                 return ;
 380         }
 381
 382         // Debug!
 383         if( giDebugLevel )
 384                 Debug(Client, "Authenticating as '%s'", username);
 385
 386         // Save username
 387         if(Client->Username)
 388                 free(Client->Username);
 389         Client->Username = strdup(username);
 390
 391         #if USE_SALT
 392         // Create a salt (that changes if the username is changed)
 393         // Yes, I know, I'm a little paranoid, but who isn't?
 394         Client->Salt[0] = 0x21 + (rand()&0x3F);
 395         Client->Salt[1] = 0x21 + (rand()&0x3F);
 396         Client->Salt[2] = 0x21 + (rand()&0x3F);
 397         Client->Salt[3] = 0x21 + (rand()&0x3F);
 398         Client->Salt[4] = 0x21 + (rand()&0x3F);
 399         Client->Salt[5] = 0x21 + (rand()&0x3F);
 400         Client->Salt[6] = 0x21 + (rand()&0x3F);
 401         Client->Salt[7] = 0x21 + (rand()&0x3F);
 402
 403         // TODO: Also send hash type to use, (SHA1 or crypt according to [DAA])
 404         sendf(Client->Socket, "100 SALT %s\n", Client->Salt);
 405         #else
 406         sendf(Client->Socket, "100 User Set\n");
 407         #endif
 408 }
 409
 410 /**
 411  * \brief Authenticate as a user
 412  *
 413  * Usage: PASS <hash>
 414  */
 415 void Server_Cmd_PASS(tClient *Client, char *Args)
 416 {
 417         char    *passhash;
 418          int    flags;
 419
 420         if( Server_int_ParseArgs(0, Args, &passhash, NULL) )
 421         {
 422                 sendf(Client->Socket, "407 PASS takes 1 argument\n");
 423                 return ;
 424         }
 425
 426         // Pass on to cokebank
 427         Client->UID = Bank_GetUserAuth(Client->Salt, Client->Username, passhash);
 428
 429         if( Client->UID == -1 ) {
 430                 sendf(Client->Socket, "401 Auth Failure\n");
 431                 return ;
 432         }
 433
 434         flags = Bank_GetFlags(Client->UID);
 435         if( flags & USER_FLAG_DISABLED ) {
 436                 Client->UID = -1;
 437                 sendf(Client->Socket, "403 Account Disabled\n");
 438                 return ;
 439         }
 440         if( flags & USER_FLAG_INTERNAL ) {
 441                 Client->UID = -1;
 442                 sendf(Client->Socket, "403 Internal account\n");
 443                 return ;
 444         }
 445
 446         Client->bIsAuthed = 1;
 447         sendf(Client->Socket, "200 Auth OK\n");
 448 }
 449
 450 /**
 451  * \brief Authenticate as a user without a password
 452  *
 453  * Usage: AUTOAUTH <user>
 454  */
 455 void Server_Cmd_AUTOAUTH(tClient *Client, char *Args)
 456 {
 457         char    *username;
 458          int    userflags;
 459
 460         if( Server_int_ParseArgs(0, Args, &username, NULL) )
 461         {
 462                 sendf(Client->Socket, "407 AUTOAUTH takes 1 argument\n");
 463                 return ;
 464         }
 465
 466         // Check if trusted
 467         if( !Client->bIsTrusted ) {
 468                 if(giDebugLevel)
 469                         Debug(Client, "Untrusted client attempting to AUTOAUTH");
 470                 sendf(Client->Socket, "401 Untrusted\n");
 471                 return ;
 472         }
 473
 474         // Get UID
 475         Client->UID = Bank_GetAcctByName( username );
 476         if( Client->UID < 0 ) {
 477                 if(giDebugLevel)
 478                         Debug(Client, "Unknown user '%s'", username);
 479                 sendf(Client->Socket, "403 Auth Failure\n");
 480                 return ;
 481         }
 482
 483         userflags = Bank_GetFlags(Client->UID);
 484         // You can't be an internal account
 485         if( userflags & USER_FLAG_INTERNAL ) {
 486                 if(giDebugLevel)
 487                         Debug(Client, "Autoauth as '%s', not allowed", username);
 488                 Client->UID = -1;
 489                 sendf(Client->Socket, "403 Account is internal\n");
 490                 return ;
 491         }
 492
 493         // Disabled accounts
 494         if( userflags & USER_FLAG_DISABLED ) {
 495                 Client->UID = -1;
 496                 sendf(Client->Socket, "403 Account disabled\n");
 497                 return ;
 498         }
 499
 500         Client->bIsAuthed = 1;
 501
 502         if(giDebugLevel)
 503                 Debug(Client, "Auto authenticated as '%s' (%i)", username, Client->UID);
 504
 505         sendf(Client->Socket, "200 Auth OK\n");
 506 }
 507
 508 /**
 509  * \brief Set effective user
 510  */
 511 void Server_Cmd_SETEUSER(tClient *Client, char *Args)
 512 {
 513         char    *username;
 514          int    eUserFlags, userFlags;
 515
 516         if( Server_int_ParseArgs(0, Args, &username, NULL) )
 517         {
 518                 sendf(Client->Socket, "407 SETEUSER takes 1 argument\n");
 519                 return ;
 520         }
 521
 522         if( !strlen(Args) ) {
 523                 sendf(Client->Socket, "407 SETEUSER expects an argument\n");
 524                 return ;
 525         }
 526
 527         // Check user permissions
 528         userFlags = Bank_GetFlags(Client->UID);
 529         if( !(userFlags & (USER_FLAG_COKE|USER_FLAG_ADMIN)) ) {
 530                 sendf(Client->Socket, "403 Not in coke\n");
 531                 return ;
 532         }
 533
 534         // Set id
 535         Client->EffectiveUID = Bank_GetAcctByName(username);
 536         if( Client->EffectiveUID == -1 ) {
 537                 sendf(Client->Socket, "404 User not found\n");
 538                 return ;
 539         }
 540
 541         // You can't be an internal account
 542         if( !(userFlags & USER_FLAG_ADMIN) )
 543         {
 544                 eUserFlags = Bank_GetFlags(Client->EffectiveUID);
 545                 if( eUserFlags & USER_FLAG_INTERNAL ) {
 546                         Client->EffectiveUID = -1;
 547                         sendf(Client->Socket, "404 User not found\n");
 548                         return ;
 549                 }
 550                 // Disabled only avaliable to admins
 551                 if( eUserFlags & USER_FLAG_DISABLED ) {
 552                         Client->EffectiveUID = -1;
 553                         sendf(Client->Socket, "403 Account disabled\n");
 554                         return ;
 555                 }
 556         }
 557
 558         sendf(Client->Socket, "200 User set\n");
 559 }
 560
 561 /**
 562  * \brief Send an item status to the client
 563  * \param Client        Who to?
 564  * \param Item  Item to send
 565  */
 566 void Server_int_SendItem(tClient *Client, tItem *Item)
 567 {
 568         char    *status = "avail";
 569
 570         if( Item->Handler->CanDispense )
 571         {
 572                 switch(Item->Handler->CanDispense(Client->UID, Item->ID))
 573                 {
 574                 case  0:        status = "avail";       break;
 575                 case  1:        status = "sold";        break;
 576                 default:
 577                 case -1:        status = "error";       break;
 578                 }
 579         }
 580
 581         sendf(Client->Socket,
 582                 "202 Item %s:%i %s %i %s\n",
 583                 Item->Handler->Name, Item->ID, status, Item->Price, Item->Name
 584                 );
 585 }
 586
 587 /**
 588  * \brief Enumerate the items that the server knows about
 589  */
 590 void Server_Cmd_ENUMITEMS(tClient *Client, char *Args)
 591 {
 592          int    i, count;
 593
 594         if( Args != NULL && strlen(Args) ) {
 595                 sendf(Client->Socket, "407 ENUM_ITEMS takes no arguments\n");
 596                 return ;
 597         }
 598
 599         // Count shown items
 600         count = 0;
 601         for( i = 0; i < giNumItems; i ++ ) {
 602                 if( gaItems[i].bHidden )        continue;
 603                 count ++;
 604         }
 605
 606         sendf(Client->Socket, "201 Items %i\n", count);
 607
 608         for( i = 0; i < giNumItems; i ++ ) {
 609                 if( gaItems[i].bHidden )        continue;
 610                 Server_int_SendItem( Client, &gaItems[i] );
 611         }
 612
 613         sendf(Client->Socket, "200 List end\n");
 614 }
 615
 616 tItem *_GetItemFromString(char *String)
 617 {
 618         tHandler        *handler;
 619         char    *type = String;
 620         char    *colon = strchr(String, ':');
 621          int    num, i;
 622
 623         if( !colon ) {
 624                 return NULL;
 625         }
 626
 627         num = atoi(colon+1);
 628         *colon = '\0';
 629
 630         // Find handler
 631         handler = NULL;
 632         for( i = 0; i < giNumHandlers; i ++ )
 633         {
 634                 if( strcmp(gaHandlers[i]->Name, type) == 0) {
 635                         handler = gaHandlers[i];
 636                         break;
 637                 }
 638         }
 639         if( !handler ) {
 640                 return NULL;
 641         }
 642
 643         // Find item
 644         for( i = 0; i < giNumItems; i ++ )
 645         {
 646                 if( gaItems[i].Handler != handler )     continue;
 647                 if( gaItems[i].ID != num )      continue;
 648                 return &gaItems[i];
 649         }
 650         return NULL;
 651 }
 652
 653 /**
 654  * \brief Fetch information on a specific item
 655  */
 656 void Server_Cmd_ITEMINFO(tClient *Client, char *Args)
 657 {
 658         tItem   *item;
 659         char    *itemname;
 660
 661         if( Server_int_ParseArgs(0, Args, &itemname, NULL) ) {
 662                 sendf(Client->Socket, "407 ITEMINFO takes 1 argument\n");
 663                 return ;
 664         }
 665         item = _GetItemFromString(Args);
 666
 667         if( !item ) {
 668                 sendf(Client->Socket, "406 Bad Item ID\n");
 669                 return ;
 670         }
 671
 672         Server_int_SendItem( Client, item );
 673 }
 674
 675 void Server_Cmd_DISPENSE(tClient *Client, char *Args)
 676 {
 677         tItem   *item;
 678          int    ret;
 679          int    uid;
 680         char    *itemname;
 681
 682         if( Server_int_ParseArgs(0, Args, &itemname, NULL) ) {
 683                 sendf(Client->Socket, "407 DISPENSE takes only 1 argument\n");
 684                 return ;
 685         }
 686
 687         if( !Client->bIsAuthed ) {
 688                 sendf(Client->Socket, "401 Not Authenticated\n");
 689                 return ;
 690         }
 691
 692         item = _GetItemFromString(itemname);
 693         if( !item ) {
 694                 sendf(Client->Socket, "406 Bad Item ID\n");
 695                 return ;
 696         }
 697
 698         if( Client->EffectiveUID != -1 ) {
 699                 uid = Client->EffectiveUID;
 700         }
 701         else {
 702                 uid = Client->UID;
 703         }
 704
 705         switch( ret = DispenseItem( Client->UID, uid, item ) )
 706         {
 707         case 0: sendf(Client->Socket, "200 Dispense OK\n");     return ;
 708         case 1: sendf(Client->Socket, "501 Unable to dispense\n");      return ;
 709         case 2: sendf(Client->Socket, "402 Poor You\n");        return ;
 710         default:
 711                 sendf(Client->Socket, "500 Dispense Error\n");
 712                 return ;
 713         }
 714 }
 715
 716 void Server_Cmd_GIVE(tClient *Client, char *Args)
 717 {
 718         char    *recipient, *ammount, *reason;
 719          int    uid, iAmmount;
 720          int    thisUid;
 721
 722         // Parse arguments
 723         if( Server_int_ParseArgs(1, Args, &recipient, &ammount, &reason, NULL) ) {
 724                 sendf(Client->Socket, "407 GIVE takes only 3 arguments\n");
 725                 return ;
 726         }
 727         // Check for authed
 728         if( !Client->bIsAuthed ) {
 729                 sendf(Client->Socket, "401 Not Authenticated\n");
 730                 return ;
 731         }
 732
 733         // Get recipient
 734         uid = Bank_GetAcctByName(recipient);
 735         if( uid == -1 ) {
 736                 sendf(Client->Socket, "404 Invalid target user\n");
 737                 return ;
 738         }
 739
 740         // You can't alter an internal account
 741 //      if( Bank_GetFlags(uid) & USER_FLAG_INTERNAL ) {
 742 //              sendf(Client->Socket, "404 Invalid target user\n");
 743 //              return ;
 744 //      }
 745
 746         // Parse ammount
 747         iAmmount = atoi(ammount);
 748         if( iAmmount <= 0 ) {
 749                 sendf(Client->Socket, "407 Invalid Argument, ammount must be > zero\n");
 750                 return ;
 751         }
 752
 753         if( Client->EffectiveUID != -1 ) {
 754                 thisUid = Client->EffectiveUID;
 755         }
 756         else {
 757                 thisUid = Client->UID;
 758         }
 759
 760         // Do give
 761         switch( DispenseGive(Client->UID, thisUid, uid, iAmmount, reason) )
 762         {
 763         case 0:
 764                 sendf(Client->Socket, "200 Give OK\n");
 765                 return ;
 766         case 2:
 767                 sendf(Client->Socket, "402 Poor You\n");
 768                 return ;
 769         default:
 770                 sendf(Client->Socket, "500 Unknown error\n");
 771                 return ;
 772         }
 773 }
 774
 775 void Server_Cmd_DONATE(tClient *Client, char *Args)
 776 {
 777         char    *ammount, *reason;
 778          int    iAmmount;
 779          int    thisUid;
 780
 781         // Parse arguments
 782         if( Server_int_ParseArgs(1, Args, &ammount, &reason, NULL) ) {
 783                 sendf(Client->Socket, "407 DONATE takes 2 arguments\n");
 784                 return ;
 785         }
 786
 787         if( !Client->bIsAuthed ) {
 788                 sendf(Client->Socket, "401 Not Authenticated\n");
 789                 return ;
 790         }
 791
 792         // Parse ammount
 793         iAmmount = atoi(ammount);
 794         if( iAmmount <= 0 ) {
 795                 sendf(Client->Socket, "407 Invalid Argument, ammount must be > zero\n");
 796                 return ;
 797         }
 798
 799         // Handle effective users
 800         if( Client->EffectiveUID != -1 ) {
 801                 thisUid = Client->EffectiveUID;
 802         }
 803         else {
 804                 thisUid = Client->UID;
 805         }
 806
 807         // Do give
 808         switch( DispenseDonate(Client->UID, thisUid, iAmmount, reason) )
 809         {
 810         case 0:
 811                 sendf(Client->Socket, "200 Give OK\n");
 812                 return ;
 813         case 2:
 814                 sendf(Client->Socket, "402 Poor You\n");
 815                 return ;
 816         default:
 817                 sendf(Client->Socket, "500 Unknown error\n");
 818                 return ;
 819         }
 820 }
 821
 822 void Server_Cmd_ADD(tClient *Client, char *Args)
 823 {
 824         char    *user, *ammount, *reason;
 825          int    uid, iAmmount;
 826
 827         // Parse arguments
 828         if( Server_int_ParseArgs(1, Args, &user, &ammount, &reason, NULL) ) {
 829                 sendf(Client->Socket, "407 ADD takes 3 arguments\n");
 830                 return ;
 831         }
 832
 833         if( !Client->bIsAuthed ) {
 834                 sendf(Client->Socket, "401 Not Authenticated\n");
 835                 return ;
 836         }
 837
 838         // Check user permissions
 839         if( !(Bank_GetFlags(Client->UID) & (USER_FLAG_COKE|USER_FLAG_ADMIN))  ) {
 840                 sendf(Client->Socket, "403 Not in coke\n");
 841                 return ;
 842         }
 843
 844         // Get recipient
 845         uid = Bank_GetAcctByName(user);
 846         if( uid == -1 ) {
 847                 sendf(Client->Socket, "404 Invalid user\n");
 848                 return ;
 849         }
 850
 851         // You can't alter an internal account
 852         if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) )
 853         {
 854                 if( Bank_GetFlags(uid) & USER_FLAG_INTERNAL ) {
 855                         sendf(Client->Socket, "404 Invalid user\n");
 856                         return ;
 857                 }
 858                 // TODO: Maybe disallow changes to disabled?
 859         }
 860
 861         // Parse ammount
 862         iAmmount = atoi(ammount);
 863         if( iAmmount == 0 && ammount[0] != '0' ) {
 864                 sendf(Client->Socket, "407 Invalid Argument\n");
 865                 return ;
 866         }
 867
 868         // Do give
 869         switch( DispenseAdd(Client->UID, uid, iAmmount, reason) )
 870         {
 871         case 0:
 872                 sendf(Client->Socket, "200 Add OK\n");
 873                 return ;
 874         case 2:
 875                 sendf(Client->Socket, "402 Poor Guy\n");
 876                 return ;
 877         default:
 878                 sendf(Client->Socket, "500 Unknown error\n");
 879                 return ;
 880         }
 881 }
 882
 883 void Server_Cmd_SET(tClient *Client, char *Args)
 884 {
 885         char    *user, *ammount, *reason;
 886          int    uid, iAmmount;
 887
 888         // Parse arguments
 889         if( Server_int_ParseArgs(1, Args, &user, &ammount, &reason, NULL) ) {
 890                 sendf(Client->Socket, "407 SET takes 3 arguments\n");
 891                 return ;
 892         }
 893
 894         if( !Client->bIsAuthed ) {
 895                 sendf(Client->Socket, "401 Not Authenticated\n");
 896                 return ;
 897         }
 898
 899         // Check user permissions
 900         if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN)  ) {
 901                 sendf(Client->Socket, "403 Not an admin\n");
 902                 return ;
 903         }
 904
 905         // Get recipient
 906         uid = Bank_GetAcctByName(user);
 907         if( uid == -1 ) {
 908                 sendf(Client->Socket, "404 Invalid user\n");
 909                 return ;
 910         }
 911
 912         // Parse ammount
 913         iAmmount = atoi(ammount);
 914         if( iAmmount == 0 && ammount[0] != '0' ) {
 915                 sendf(Client->Socket, "407 Invalid Argument\n");
 916                 return ;
 917         }
 918
 919         // Do give
 920         switch( DispenseSet(Client->UID, uid, iAmmount, reason) )
 921         {
 922         case 0:
 923                 sendf(Client->Socket, "200 Add OK\n");
 924                 return ;
 925         case 2:
 926                 sendf(Client->Socket, "402 Poor Guy\n");
 927                 return ;
 928         default:
 929                 sendf(Client->Socket, "500 Unknown error\n");
 930                 return ;
 931         }
 932 }
 933
 934 void Server_Cmd_ENUMUSERS(tClient *Client, char *Args)
 935 {
 936          int    i, numRet = 0;
 937         tAcctIterator   *it;
 938          int    maxBal = INT_MAX, minBal = INT_MIN;
 939          int    flagMask = 0, flagVal = 0;
 940          int    sort = BANK_ITFLAG_SORT_NAME;
 941         time_t  lastSeenAfter=0, lastSeenBefore=0;
 942
 943          int    flags;  // Iterator flags
 944          int    balValue;       // Balance value for iterator
 945         time_t  timeValue;      // Time value for iterator
 946
 947         // Parse arguments
 948         if( Args && strlen(Args) )
 949         {
 950                 char    *space = Args, *type, *val;
 951                 do
 952                 {
 953                         type = space;
 954                         while(*type == ' ')     type ++;
 955                         // Get next space
 956                         space = strchr(space, ' ');
 957                         if(space)       *space = '\0';
 958
 959                         // Get type
 960                         val = strchr(type, ':');
 961                         if( val ) {
 962                                 *val = '\0';
 963                                 val ++;
 964
 965                                 // Types
 966                                 // - Minium Balance
 967                                 if( strcmp(type, "min_balance") == 0 ) {
 968                                         minBal = atoi(val);
 969                                 }
 970                                 // - Maximum Balance
 971                                 else if( strcmp(type, "max_balance") == 0 ) {
 972                                         maxBal = atoi(val);
 973                                 }
 974                                 // - Flags
 975                                 else if( strcmp(type, "flags") == 0 ) {
 976                                         if( Server_int_ParseFlags(Client, val, &flagMask, &flagVal) )
 977                                                 return ;
 978                                 }
 979                                 // - Last seen before timestamp
 980                                 else if( strcmp(type, "last_seen_before") == 0 ) {
 981                                         lastSeenAfter = atoll(val);
 982                                 }
 983                                 // - Last seen after timestamp
 984                                 else if( strcmp(type, "last_seen_after") == 0 ) {
 985                                         lastSeenAfter = atoll(val);
 986                                 }
 987                                 // - Sorting
 988                                 else if( strcmp(type, "sort") == 0 ) {
 989                                         char    *dash = strchr(val, '-');
 990                                         if( dash ) {
 991                                                 *dash = '\0';
 992                                                 dash ++;
 993                                         }
 994                                         if( strcmp(val, "name") == 0 ) {
 995                                                 sort = BANK_ITFLAG_SORT_NAME;
 996                                         }
 997                                         else if( strcmp(val, "balance") == 0 ) {
 998                                                 sort = BANK_ITFLAG_SORT_BAL;
 999                                         }
1000                                         else if( strcmp(val, "lastseen") == 0 ) {
1001                                                 sort = BANK_ITFLAG_SORT_LASTSEEN;
1002                                         }
1003                                         else {
1004                                                 sendf(Client->Socket, "407 Unknown sort field ('%s')\n", val);
1005                                                 return ;
1006                                         }
1007                                         // Handle sort direction
1008                                         if( dash ) {
1009                                                 if( strcmp(dash, "desc") == 0 ) {
1010                                                         sort |= BANK_ITFLAG_REVSORT;
1011                                                 }
1012                                                 else {
1013                                                         sendf(Client->Socket, "407 Unknown sort direction '%s'\n", dash);
1014                                                         return ;
1015                                                 }
1016                                                 dash[-1] = '-';
1017                                         }
1018                                 }
1019                                 else {
1020                                         sendf(Client->Socket, "407 Unknown argument to ENUM_USERS '%s:%s'\n", type, val);
1021                                         return ;
1022                                 }
1023
1024                                 val[-1] = ':';
1025                         }
1026                         else {
1027                                 sendf(Client->Socket, "407 Unknown argument to ENUM_USERS '%s'\n", type);
1028                                 return ;
1029                         }
1030
1031                         // Eat whitespace
1032                         if( space ) {
1033                                 *space = ' ';   // Repair (to be nice)
1034                                 space ++;
1035                                 while(*space == ' ')    space ++;
1036                         }
1037                 }       while(space);
1038         }
1039
1040         // Create iterator
1041         if( maxBal != INT_MAX ) {
1042                 flags = sort|BANK_ITFLAG_MAXBALANCE;
1043                 balValue = maxBal;
1044         }
1045         else if( minBal != INT_MIN ) {
1046                 flags = sort|BANK_ITFLAG_MINBALANCE;
1047                 balValue = minBal;
1048         }
1049         else {
1050                 flags = sort;
1051                 balValue = 0;
1052         }
1053         if( lastSeenBefore ) {
1054                 timeValue = lastSeenBefore;
1055                 flags |= BANK_ITFLAG_SEENBEFORE;
1056         }
1057         else if( lastSeenAfter ) {
1058                 timeValue = lastSeenAfter;
1059                 flags |= BANK_ITFLAG_SEENAFTER;
1060         }
1061         else {
1062                 timeValue = 0;
1063         }
1064         it = Bank_Iterator(flagMask, flagVal, flags, balValue, timeValue);
1065
1066         // Get return number
1067         while( (i = Bank_IteratorNext(it)) != -1 )
1068         {
1069                 int bal = Bank_GetBalance(i);
1070
1071                 if( bal == INT_MIN )    continue;
1072
1073                 if( bal < minBal )      continue;
1074                 if( bal > maxBal )      continue;
1075
1076                 numRet ++;
1077         }
1078
1079         Bank_DelIterator(it);
1080
1081         // Send count
1082         sendf(Client->Socket, "201 Users %i\n", numRet);
1083
1084
1085         // Create iterator
1086         it = Bank_Iterator(flagMask, flagVal, flags, balValue, timeValue);
1087
1088         while( (i = Bank_IteratorNext(it)) != -1 )
1089         {
1090                 int bal = Bank_GetBalance(i);
1091
1092                 if( bal == INT_MIN )    continue;
1093
1094                 if( bal < minBal )      continue;
1095                 if( bal > maxBal )      continue;
1096
1097                 _SendUserInfo(Client, i);
1098         }
1099
1100         Bank_DelIterator(it);
1101
1102         sendf(Client->Socket, "200 List End\n");
1103 }
1104
1105 void Server_Cmd_USERINFO(tClient *Client, char *Args)
1106 {
1107          int    uid;
1108         char    *user;
1109
1110         // Parse arguments
1111         if( Server_int_ParseArgs(0, Args, &user, NULL) ) {
1112                 sendf(Client->Socket, "407 USER_INFO takes 1 argument\n");
1113                 return ;
1114         }
1115
1116         if( giDebugLevel )      Debug(Client, "User Info '%s'", user);
1117
1118         // Get recipient
1119         uid = Bank_GetAcctByName(user);
1120
1121         if( giDebugLevel >= 2 ) Debug(Client, "uid = %i", uid);
1122         if( uid == -1 ) {
1123                 sendf(Client->Socket, "404 Invalid user\n");
1124                 return ;
1125         }
1126
1127         _SendUserInfo(Client, uid);
1128 }
1129
1130 void _SendUserInfo(tClient *Client, int UserID)
1131 {
1132         char    *type, *disabled="", *door="";
1133          int    flags = Bank_GetFlags(UserID);
1134
1135         if( flags & USER_FLAG_INTERNAL ) {
1136                 type = "internal";
1137         }
1138         else if( flags & USER_FLAG_COKE ) {
1139                 if( flags & USER_FLAG_ADMIN )
1140                         type = "coke,admin";
1141                 else
1142                         type = "coke";
1143         }
1144         else if( flags & USER_FLAG_ADMIN ) {
1145                 type = "admin";
1146         }
1147         else {
1148                 type = "user";
1149         }
1150
1151         if( flags & USER_FLAG_DISABLED )
1152                 disabled = ",disabled";
1153         if( flags & USER_FLAG_DOORGROUP )
1154                 door = ",door";
1155
1156         // TODO: User flags/type
1157         sendf(
1158                 Client->Socket, "202 User %s %i %s%s%s\n",
1159                 Bank_GetAcctName(UserID), Bank_GetBalance(UserID),
1160                 type, disabled, door
1161                 );
1162 }
1163
1164 void Server_Cmd_USERADD(tClient *Client, char *Args)
1165 {
1166         char    *username;
1167
1168         // Parse arguments
1169         if( Server_int_ParseArgs(0, Args, &username, NULL) ) {
1170                 sendf(Client->Socket, "407 USER_ADD takes 1 argument\n");
1171                 return ;
1172         }
1173
1174         // Check permissions
1175         if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) ) {
1176                 sendf(Client->Socket, "403 Not a coke admin\n");
1177                 return ;
1178         }
1179
1180         // Try to create user
1181         if( Bank_CreateAcct(username) == -1 ) {
1182                 sendf(Client->Socket, "404 User exists\n");
1183                 return ;
1184         }
1185
1186         {
1187                 char    *thisName = Bank_GetAcctName(Client->UID);
1188                 Log_Info("Account '%s' created by '%s'", username, thisName);
1189                 free(thisName);
1190         }
1191
1192         sendf(Client->Socket, "200 User Added\n");
1193 }
1194
1195 void Server_Cmd_USERFLAGS(tClient *Client, char *Args)
1196 {
1197         char    *username, *flags;
1198          int    mask=0, value=0;
1199          int    uid;
1200
1201         // Parse arguments
1202         if( Server_int_ParseArgs(0, Args, &username, &flags, NULL) ) {
1203                 sendf(Client->Socket, "407 USER_FLAGS takes 2 arguments\n");
1204                 return ;
1205         }
1206
1207         // Check permissions
1208         if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) ) {
1209                 sendf(Client->Socket, "403 Not a coke admin\n");
1210                 return ;
1211         }
1212
1213         // Get UID
1214         uid = Bank_GetAcctByName(username);
1215         if( uid == -1 ) {
1216                 sendf(Client->Socket, "404 User '%s' not found\n", username);
1217                 return ;
1218         }
1219
1220         // Parse flags
1221         if( Server_int_ParseFlags(Client, flags, &mask, &value) )
1222                 return ;
1223
1224         if( giDebugLevel )
1225                 Debug(Client, "Set %i(%s) flags to %x (masked %x)\n",
1226                         uid, username, mask, value);
1227
1228         // Apply flags
1229         Bank_SetFlags(uid, mask, value);
1230
1231         // Return OK
1232         sendf(Client->Socket, "200 User Updated\n");
1233 }
1234
1235 // --- INTERNAL HELPERS ---
1236 void Debug(tClient *Client, const char *Format, ...)
1237 {
1238         va_list args;
1239         //printf("%010i [%i] ", (int)time(NULL), Client->ID);
1240         printf("[%i] ", Client->ID);
1241         va_start(args, Format);
1242         vprintf(Format, args);
1243         va_end(args);
1244         printf("\n");
1245 }
1246
1247 int sendf(int Socket, const char *Format, ...)
1248 {
1249         va_list args;
1250          int    len;
1251
1252         va_start(args, Format);
1253         len = vsnprintf(NULL, 0, Format, args);
1254         va_end(args);
1255
1256         {
1257                 char    buf[len+1];
1258                 va_start(args, Format);
1259                 vsnprintf(buf, len+1, Format, args);
1260                 va_end(args);
1261
1262                 #if DEBUG_TRACE_CLIENT
1263                 printf("sendf: %s", buf);
1264                 #endif
1265
1266                 return send(Socket, buf, len, 0);
1267         }
1268 }
1269
1270 // Takes a series of char *'s in
1271 /**
1272  * \brief Parse space-separated entries into
1273  */
1274 int Server_int_ParseArgs(int bUseLongLast, char *ArgStr, ...)
1275 {
1276         va_list args;
1277         char    savedChar;
1278         char    **dest;
1279         va_start(args, ArgStr);
1280
1281         // Check for null
1282         if( !ArgStr )
1283         {
1284                 while( (dest = va_arg(args, char **)) )
1285                         *dest = NULL;
1286                 va_end(args);
1287                 return 1;
1288         }
1289
1290         savedChar = *ArgStr;
1291
1292         while( (dest = va_arg(args, char **)) )
1293         {
1294                 // Trim leading spaces
1295                 while( *ArgStr == ' ' || *ArgStr == '\t' )
1296                         ArgStr ++;
1297
1298                 // ... oops, not enough arguments
1299                 if( *ArgStr == '\0' )
1300                 {
1301                         // NULL unset arguments
1302                         do {
1303                                 *dest = NULL;
1304                         }       while( (dest = va_arg(args, char **)) );
1305                 va_end(args);
1306                         return -1;
1307                 }
1308
1309                 if( *ArgStr == '"' )
1310                 {
1311                         ArgStr ++;
1312                         *dest = ArgStr;
1313                         // Read until quote
1314                         while( *ArgStr && *ArgStr != '"' )
1315                                 ArgStr ++;
1316                 }
1317                 else
1318                 {
1319                         // Set destination
1320                         *dest = ArgStr;
1321                         // Read until a space
1322                         while( *ArgStr && *ArgStr != ' ' && *ArgStr != '\t' )
1323                                 ArgStr ++;
1324                 }
1325                 savedChar = *ArgStr;    // savedChar is used to un-mangle the last string
1326                 *ArgStr = '\0';
1327                 ArgStr ++;
1328         }
1329         va_end(args);
1330
1331         // Oops, extra arguments, and greedy not set
1332         if( (savedChar == ' ' || savedChar == '\t') && !bUseLongLast ) {
1333                 return -1;
1334         }
1335
1336         // Un-mangle last
1337         if(bUseLongLast) {
1338                 ArgStr --;
1339                 *ArgStr = savedChar;
1340         }
1341
1342         return 0;       // Success!
1343 }
1344
1345 int Server_int_ParseFlags(tClient *Client, const char *Str, int *Mask, int *Value)
1346 {
1347         struct {
1348                 const char      *Name;
1349                  int    Mask;
1350                  int    Value;
1351         }       cFLAGS[] = {
1352                  {"disabled", USER_FLAG_DISABLED, USER_FLAG_DISABLED}
1353                 ,{"door", USER_FLAG_DOORGROUP, USER_FLAG_DOORGROUP}
1354                 ,{"coke", USER_FLAG_COKE, USER_FLAG_COKE}
1355                 ,{"admin", USER_FLAG_ADMIN, USER_FLAG_ADMIN}
1356                 ,{"internal", USER_FLAG_INTERNAL, USER_FLAG_INTERNAL}
1357         };
1358         const int       ciNumFlags = sizeof(cFLAGS)/sizeof(cFLAGS[0]);
1359
1360         char    *space;
1361
1362         *Mask = 0;
1363         *Value = 0;
1364
1365         do {
1366                  int    bRemove = 0;
1367                  int    i;
1368                  int    len;
1369
1370                 while( *Str == ' ' )    Str ++; // Eat whitespace
1371                 space = strchr(Str, ',');       // Find the end of the flag
1372                 if(space)
1373                         len = space - Str;
1374                 else
1375                         len = strlen(Str);
1376
1377                 // Check for inversion/removal
1378                 if( *Str == '!' || *Str == '-' ) {
1379                         bRemove = 1;
1380                         Str ++;
1381                 }
1382                 else if( *Str == '+' ) {
1383                         Str ++;
1384                 }
1385
1386                 // Check flag values
1387                 for( i = 0; i < ciNumFlags; i ++ )
1388                 {
1389                         if( strncmp(Str, cFLAGS[i].Name, len) == 0 ) {
1390                                 *Mask |= cFLAGS[i].Mask;
1391                                 *Value &= ~cFLAGS[i].Mask;
1392                                 if( !bRemove )
1393                                         *Value |= cFLAGS[i].Value;
1394                                 break;
1395                         }
1396                 }
1397
1398                 // Error check
1399                 if( i == ciNumFlags ) {
1400                         char    val[len+1];
1401                         strncpy(val, Str, len+1);
1402                         sendf(Client->Socket, "407 Unknown flag value '%s'\n", val);
1403                         return -1;
1404                 }
1405
1406                 Str = space + 1;
1407         } while(space);
1408
1409         return 0;
1410 }