citadel/citserver.c

   1 #include <stdlib.h>
   2 #include <unistd.h>
   3 #include <stdio.h>
   4 #include <fcntl.h>
   5 #include <signal.h>
   6 #include <time.h>
   7 #include <ctype.h>
   8 #include <string.h>
   9 #include <errno.h>
  10 #include <limits.h>
  11 #include <pthread.h>
  12 #include <syslog.h>
  13 #include <dlfcn.h>
  14 #include "citadel.h"
  15 #include "server.h"
  16 #include "sysdep_decls.h"
  17 #include "citserver.h"
  18 #include "config.h"
  19 #include "database.h"
  20 #include "housekeeping.h"
  21 #include "user_ops.h"
  22 #include "logging.h"
  23 #include "support.h"
  24 #include "msgbase.h"
  25 #include "locate_host.h"
  26 #include "room_ops.h"
  27 #include "file_ops.h"
  28 #include "dynloader.h"
  29
  30 struct CitContext *ContextList = NULL;
  31 int ScheduledShutdown = 0;
  32
  33 /*
  34  * Various things that need to be initialized at startup
  35  */
  36 void master_startup(void) {
  37         lprintf(7, "Opening databases\n");
  38         open_databases();
  39
  40         lprintf(7, "Checking floor reference counts\n");
  41         check_ref_counts();
  42         }
  43
  44 /*
  45  * Cleanup routine to be called when the server is shutting down.
  46  */
  47 void master_cleanup(void) {
  48         struct CleanupFunctionHook *fcn;
  49
  50         /* Cancel all running sessions */
  51         lprintf(7, "Cancelling running sessions...\n");
  52         while (ContextList != NULL) {
  53                 kill_session(ContextList->cs_pid);
  54                 }
  55
  56         /* Run any cleanup routines registered by loadable modules */
  57         for (fcn = CleanupHookTable; fcn != NULL; fcn = fcn->next) {
  58                 (*fcn->h_function_pointer)();
  59                 }
  60
  61         /* Close databases */
  62         lprintf(7, "Closing databases\n");
  63         close_databases();
  64
  65         /* Do system-dependent stuff */
  66         sysdep_master_cleanup();
  67
  68         /* Now go away. */
  69         lprintf(3, "citserver: exiting.\n");
  70         exit(0);
  71         }
  72
  73
  74 /*
  75  * Gracefully terminate the session and thread.
  76  * (This is called as a cleanup handler by the thread library.)
  77  *
  78  * All NON-system-dependent stuff is done in this function.
  79  * System-dependent session/thread cleanup is in cleanup() in sysdep.c
  80  */
  81 void cleanup_stuff(void *arg)
  82 {
  83         struct ExpressMessage *emptr;
  84
  85         lprintf(9, "cleanup_stuff() called\n");
  86
  87         lprintf(7, "Calling logout(%d)\n", CC->cs_pid);
  88         logout(CC);
  89
  90         rec_log(CL_TERMINATE,CC->curr_user);
  91         unlink(CC->temp);
  92         lprintf(3, "citserver[%3d]: ended.\n",CC->cs_pid);
  93
  94         /* Run any cleanup routines registered by loadable modules */
  95         PerformSessionHooks(EVT_STOP);
  96
  97         syslog(LOG_NOTICE,"session %d ended", CC->cs_pid);
  98
  99         /* Deallocate any unsent express messages */
 100         begin_critical_section(S_SESSION_TABLE);
 101         while (CC->FirstExpressMessage != NULL) {
 102                 emptr = CC->FirstExpressMessage;
 103                 CC->FirstExpressMessage = CC->FirstExpressMessage->next;
 104                 free(emptr);
 105                 }
 106         end_critical_section(S_SESSION_TABLE);
 107
 108         /* Deallocate any message list we might have in memory */
 109         if (CC->msglist != NULL) free(CC->msglist);
 110
 111         /* Now get rid of the session and context */
 112         lprintf(7, "cleanup_stuff() is calling RemoveContext(%d)\n", CC->cs_pid);
 113         RemoveContext(CC);
 114
 115         /* While we still have an extra thread with no user attached to it,
 116          * take the opportunity to do some housekeeping before exiting.
 117          */
 118         do_housekeeping();
 119         }
 120
 121
 122 /*
 123  * set_wtmpsupp()  -  alter the session listing
 124  */
 125 void set_wtmpsupp(char *newtext)
 126 {
 127         strncpy(CC->cs_room,newtext,19);
 128         CC->cs_room[19] = 0;
 129         time(&CC->cs_lastupdt);
 130
 131         /* Run any routines registered by loadable modules */
 132         PerformSessionHooks(EVT_NEWROOM);
 133         }
 134
 135
 136 /*
 137  * cmd_info()  -  tell the client about this server
 138  */
 139 void cmd_info(void) {
 140         cprintf("%d Server info:\n",LISTING_FOLLOWS);
 141         cprintf("%d\n",CC->cs_pid);
 142         cprintf("%s\n",config.c_nodename);
 143         cprintf("%s\n",config.c_humannode);
 144         cprintf("%s\n",config.c_fqdn);
 145         cprintf("%s\n",CITADEL);
 146         cprintf("%d\n",REV_LEVEL);
 147         cprintf("%s\n",config.c_bbs_city);
 148         cprintf("%s\n",config.c_sysadm);
 149         cprintf("%d\n",SERVER_TYPE);
 150         cprintf("%s\n",config.c_moreprompt);
 151         cprintf("1\n"); /* 1 = yes, this system supports floors */
 152         cprintf("000\n");
 153         }
 154
 155 void cmd_rchg(char *newroomname)
 156 {
 157    if ((newroomname) && (newroomname[0]))
 158    {
 159       bzero(CC->fake_roomname, 20);
 160       strncpy(CC->fake_roomname, newroomname, 19);
 161    }
 162    else
 163       CC->fake_roomname[0] = '\0';
 164    cprintf("%d\n",OK);
 165 }
 166
 167 void cmd_hchg(char *newhostname)
 168 {
 169    if ((newhostname) && (newhostname[0]))
 170    {
 171       bzero(CC->fake_hostname, 25);
 172       strncpy(CC->fake_hostname, newhostname, 24);
 173    }
 174    else
 175       CC->fake_hostname[0] = '\0';
 176    cprintf("%d\n",OK);
 177 }
 178
 179 void cmd_uchg(char *newusername)
 180 {
 181    if (CC->usersupp.axlevel < 6)
 182    {
 183       cprintf("%d You must be an Aide to use UCHG.\n",
 184                 ERROR+HIGHER_ACCESS_REQUIRED);
 185       return;
 186    }
 187    if ((newusername) && (newusername[0]))
 188    {
 189       CC->cs_flags &= ~CS_STEALTH;
 190       bzero(CC->fake_username, 32);
 191       if (strncasecmp(newusername, CC->curr_user, strlen(CC->curr_user)))
 192          strncpy(CC->fake_username, newusername, 31);
 193    }
 194    else
 195    {
 196       CC->fake_username[0] = '\0';
 197       CC->cs_flags |= CS_STEALTH;
 198    }
 199    cprintf("%d\n",OK);
 200 }
 201
 202 /*
 203  * returns an asterisk if there are any express messages waiting,
 204  * space otherwise.
 205  */
 206 char check_express(void) {
 207         if (CC->FirstExpressMessage == NULL) {
 208                 return(' ');
 209                 }
 210         else {
 211                 return('*');
 212                 }
 213         }
 214
 215 void cmd_time(void)
 216 {
 217    time_t tv;
 218
 219    tv = time(NULL);
 220
 221    cprintf("%d %ld\n", OK, tv);
 222 }
 223
 224 /*
 225  * check a hostname against the public_clients file
 226  */
 227 int is_public_client(char *where)
 228 {
 229         char buf[256];
 230         FILE *fp;
 231
 232         if (!strcasecmp(where,"localhost")) return(1);
 233         if (!strcasecmp(where,config.c_fqdn)) return(1);
 234
 235         fp = fopen("public_clients","r");
 236         if (fp == NULL) return(0);
 237
 238         while (fgets(buf,256,fp)!=NULL) {
 239                 while (isspace((buf[strlen(buf)-1])))
 240                         buf[strlen(buf)-1] = 0;
 241                 if (!strcasecmp(buf,where)) {
 242                         fclose(fp);
 243                         return(1);
 244                         }
 245                 }
 246
 247         fclose(fp);
 248         return(0);
 249         }
 250
 251
 252 /*
 253  * the client is identifying itself to the server
 254  */
 255 void cmd_iden(char *argbuf)
 256 {
 257         int dev_code;
 258         int cli_code;
 259         int rev_level;
 260         char desc[256];
 261         char from_host[256];
 262
 263         if (num_parms(argbuf)<4) {
 264                 cprintf("%d usage error\n",ERROR);
 265                 return;
 266                 }
 267
 268         dev_code = extract_int(argbuf,0);
 269         cli_code = extract_int(argbuf,1);
 270         rev_level = extract_int(argbuf,2);
 271         extract(desc,argbuf,3);
 272
 273         strcpy(from_host,config.c_fqdn);
 274         if (num_parms(argbuf)>=5) extract(from_host,argbuf,4);
 275
 276         CC->cs_clientdev = dev_code;
 277         CC->cs_clienttyp = cli_code;
 278         CC->cs_clientver = rev_level;
 279         strncpy(CC->cs_clientname,desc,31);
 280         CC->cs_clientname[31] = 0;
 281
 282         if ((strlen(from_host)>0) &&
 283            (is_public_client(CC->cs_host))) {
 284                 strncpy(CC->cs_host,from_host,24);
 285                 CC->cs_host[24] = 0;
 286                 }
 287         set_wtmpsupp(CC->quickroom.QRname);
 288
 289         syslog(LOG_NOTICE,"client %d/%d/%01d.%02d (%s)\n",
 290                 dev_code,
 291                 cli_code,
 292                 (rev_level / 100),
 293                 (rev_level % 100),
 294                 desc);
 295                 cprintf("%d Ok\n",OK);
 296         }
 297
 298
 299 /*
 300  * enter or exit "stealth mode"
 301  */
 302 void cmd_stel(char *cmdbuf)
 303 {
 304         int requested_mode;
 305
 306         requested_mode = extract_int(cmdbuf,0);
 307         if (requested_mode !=0) requested_mode = 1;
 308
 309         if (!CC->logged_in) {
 310                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 311                 return;
 312                 }
 313
 314         if (CC->usersupp.axlevel < 6) {
 315                 cprintf("%d You must be an Aide to use stealth mode.\n",
 316                         ERROR+HIGHER_ACCESS_REQUIRED);
 317                 return;
 318                 }
 319
 320         if (CC->cs_flags & CS_STEALTH) {
 321                 if (requested_mode == 0)
 322                         CC->cs_flags = CC->cs_flags-CS_STEALTH;
 323                 }
 324         else {
 325                 if (requested_mode == 1)
 326                         CC->cs_flags = CC->cs_flags|CS_STEALTH;
 327                 }
 328
 329         set_wtmpsupp(CC->quickroom.QRname);
 330         cprintf("%d Ok\n",OK);
 331         }
 332
 333
 334
 335
 336 /*
 337  * display system messages or help
 338  */
 339 void cmd_mesg(char *mname)
 340 {
 341         FILE *mfp;
 342         char targ[256];
 343         char buf[256];
 344         char *dirs[2];
 345
 346         extract(buf,mname,0);
 347
 348
 349         dirs[0]=malloc(64);
 350         dirs[1]=malloc(64);
 351         strcpy(dirs[0],"messages");
 352         strcpy(dirs[1],"help");
 353         mesg_locate(targ,buf,2,dirs);
 354         free(dirs[0]);
 355         free(dirs[1]);
 356
 357
 358         if (strlen(targ)==0) {
 359                 cprintf("%d '%s' not found.\n",ERROR,mname);
 360                 return;
 361                 }
 362
 363         mfp = fopen(targ,"r");
 364         if (mfp==NULL) {
 365                 cprintf("%d Cannot open '%s': %s\n",
 366                         ERROR,targ,strerror(errno));
 367                 return;
 368                 }
 369         cprintf("%d %s\n",LISTING_FOLLOWS,buf);
 370
 371         while (fgets(buf,255,mfp)!=NULL) {
 372                 buf[strlen(buf)-1] = 0;
 373                 do_help_subst(buf);
 374                 cprintf("%s\n",buf);
 375                 }
 376
 377         fclose(mfp);
 378         cprintf("000\n");
 379         }
 380
 381
 382 /*
 383  * enter system messages or help
 384  */
 385 void cmd_emsg(char *mname)
 386 {
 387         FILE *mfp;
 388         char targ[256];
 389         char buf[256];
 390         char *dirs[2];
 391         int a;
 392
 393         if (CC->usersupp.axlevel < 6) {
 394                 cprintf("%d You must be an Aide to edit system messages.\n",
 395                         ERROR+HIGHER_ACCESS_REQUIRED);
 396                 return;
 397                 }
 398
 399         extract(buf,mname,0);
 400         for (a=0; a<strlen(buf); ++a) {         /* security measure */
 401                 if (buf[a] == '/') buf[a] = '.';
 402                 }
 403
 404         dirs[0]=malloc(64);
 405         dirs[1]=malloc(64);
 406         strcpy(dirs[0],"messages");
 407         strcpy(dirs[1],"help");
 408         mesg_locate(targ,buf,2,dirs);
 409         free(dirs[0]);
 410         free(dirs[1]);
 411
 412         if (strlen(targ)==0) {
 413                 sprintf(targ, "./help/%s", buf);
 414                 }
 415
 416         mfp = fopen(targ,"w");
 417         if (mfp==NULL) {
 418                 cprintf("%d Cannot open '%s': %s\n",
 419                         ERROR,targ,strerror(errno));
 420                 return;
 421                 }
 422         cprintf("%d %s\n", SEND_LISTING, targ);
 423
 424         while (client_gets(buf), strcmp(buf, "000")) {
 425                 fprintf(mfp, "%s\n", buf);
 426                 }
 427
 428         fclose(mfp);
 429         }
 430
 431
 432 /*
 433  * who's online
 434  */
 435 void cmd_rwho(void) {
 436         struct CitContext *cptr;
 437         int spoofed = 0;
 438         int aide;
 439         char un[40], room[40], host[40], flags[5];
 440
 441         aide = CC->usersupp.axlevel >= 6;
 442         cprintf("%d\n",LISTING_FOLLOWS);
 443
 444         for (cptr = ContextList; cptr != NULL; cptr = cptr->next)
 445         {
 446                 flags[0] = '\0';
 447                 spoofed = 0;
 448
 449                 if (cptr->cs_flags & CS_POSTING)
 450                    strcat(flags, "*");
 451                 else
 452                    strcat(flags, ".");
 453
 454                 if (cptr->fake_username[0])
 455                 {
 456                    strcpy(un, cptr->fake_username);
 457                    spoofed = 1;
 458                 }
 459                 else
 460                    strcpy(un, cptr->curr_user);
 461
 462                 if (cptr->fake_hostname[0])
 463                 {
 464                    strcpy(host, cptr->fake_hostname);
 465                    spoofed = 1;
 466                 }
 467                 else
 468                    strcpy(host, cptr->cs_host);
 469
 470                 if (cptr->fake_roomname[0])
 471                 {
 472                    strcpy(room, cptr->fake_roomname);
 473                    spoofed = 1;
 474                 }
 475                 else
 476                    strcpy(room, cptr->cs_room);
 477
 478
 479                 if ((aide) && (spoofed))
 480                    strcat(flags, "+");
 481
 482                 if ((cptr->cs_flags & CS_STEALTH) && (aide))
 483                    strcat(flags, "-");
 484
 485                 if (((cptr->cs_flags&CS_STEALTH)==0) || (aide))
 486                 {
 487                         cprintf("%d|%s|%s|%s|%s|%ld|%s|%s\n",
 488                                 cptr->cs_pid, un, room,
 489                                 host, cptr->cs_clientname,
 490                                 (long)(cptr->lastidle),
 491                                 cptr->lastcmdname, flags);
 492                 }
 493                 if ((spoofed) && (aide))
 494                 {
 495                         cprintf("%d|%s|%s|%s|%s|%ld|%s|%s\n",
 496                                 cptr->cs_pid, cptr->curr_user, cptr->cs_room,
 497                                 cptr->cs_host, cptr->cs_clientname,
 498                                 (long)(cptr->lastidle),
 499                                 cptr->lastcmdname, flags);
 500
 501                 }
 502         }
 503         cprintf("000\n");
 504         }
 505
 506
 507 /*
 508  * Terminate another running session
 509  */
 510 void cmd_term(char *cmdbuf)
 511 {
 512         int session_num;
 513         struct CitContext *ccptr;
 514
 515         if (!CC->logged_in) {
 516                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 517                 return;
 518                 }
 519
 520         if (CC->usersupp.axlevel < 6) {
 521                 cprintf("%d You must be an Aide to terminate sessions.\n",
 522                         ERROR+HIGHER_ACCESS_REQUIRED);
 523                 return;
 524                 }
 525
 526         session_num = extract_int(cmdbuf, 0);
 527         if (session_num == CC->cs_pid) {
 528                 cprintf("%d You can't kill your own session.\n", ERROR);
 529                 return;
 530                 }
 531
 532         for (ccptr = ContextList; ccptr != NULL; ccptr = ccptr->next) {
 533                 if (session_num == ccptr->cs_pid) {
 534                         kill_session(ccptr->cs_pid);
 535                         cprintf("%d Session terminated.\n", OK);
 536                         return;
 537                         }
 538                 }
 539
 540         cprintf("%d No such session.\n", ERROR);
 541         }
 542
 543
 544
 545
 546
 547 /*
 548  * get the paginator prompt
 549  */
 550 void cmd_more(void) {
 551         cprintf("%d %s\n",OK,config.c_moreprompt);
 552         }
 553
 554 /*
 555  * echo
 556  */
 557 void cmd_echo(char *etext)
 558 {
 559         cprintf("%d %s\n",OK,etext);
 560         }
 561
 562
 563
 564 /*
 565  * identify as internal program
 566  */
 567 void cmd_ipgm(char *argbuf)
 568 {
 569         int secret;
 570
 571         secret = extract_int(argbuf, 0);
 572         if (secret == config.c_ipgm_secret) {
 573                 CC->internal_pgm = 1;
 574                 strcpy(CC->curr_user, "<internal program>");
 575                 CC->cs_flags = CC->cs_flags|CS_STEALTH;
 576                 cprintf("%d Authenticated as an internal program.\n",OK);
 577                 }
 578         else {
 579                 cprintf("%d Authentication failed.\n",ERROR);
 580                 }
 581         }
 582
 583
 584 /*
 585  * Shut down the server
 586  */
 587 void cmd_down(void) {
 588         if (!CC->logged_in) {
 589                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 590                 return;
 591                 }
 592
 593         if (CC->usersupp.axlevel < 6) {
 594                 cprintf("%d You must be an Aide to shut down the server.\n",
 595                         ERROR+HIGHER_ACCESS_REQUIRED);
 596                 return;
 597                 }
 598
 599         cprintf("%d Shutting down server.  Goodbye.\n", OK);
 600         master_cleanup();
 601         }
 602
 603 /*
 604  * Schedule or cancel a server shutdown
 605  */
 606 void cmd_scdn(char *argbuf)
 607 {
 608         int new_state;
 609
 610         if (!CC->logged_in) {
 611                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 612                 return;
 613                 }
 614
 615         if (CC->usersupp.axlevel < 6) {
 616                 cprintf("%d You must be an Aide to schedule a shutdown.\n",
 617                         ERROR+HIGHER_ACCESS_REQUIRED);
 618                 return;
 619                 }
 620
 621         new_state = extract_int(argbuf, 0);
 622         if ((new_state == 0) || (new_state == 1)) {
 623                 ScheduledShutdown = new_state;
 624                 }
 625         cprintf("%d %d\n", OK, ScheduledShutdown);
 626         }
 627
 628
 629 /*
 630  * main context loop
 631  */
 632 void *context_loop(struct CitContext *con)
 633 {
 634         char cmdbuf[256];
 635         int session_num;
 636
 637         /*
 638          * Wedge our way into the context table.
 639          */
 640         InitMyContext(con);
 641
 642         /*
 643          * Initialize some variables specific to our context.
 644          */
 645         CC->curr_rm = (-1);
 646         CC->logged_in = 0;
 647         CC->internal_pgm = 0;
 648         CC->download_fp = NULL;
 649         CC->upload_fp = NULL;
 650         CC->cs_pid = con->client_socket;        /* not necessarily portable */
 651         CC->FirstExpressMessage = NULL;
 652         CC->msglist = NULL;
 653         CC->num_msgs = 0;
 654         time(&CC->lastcmd);
 655         time(&CC->lastidle);
 656         strcpy(CC->lastcmdname, "    ");
 657         strcpy(CC->cs_clientname, "(unknown)");
 658         strcpy(CC->curr_user,"");
 659         strcpy(CC->net_node,"");
 660         sprintf(CC->temp,"/tmp/CitServer.%d.%d", getpid(), CC->cs_pid);
 661         strcpy(CC->cs_room, "");
 662         strcpy(CC->cs_host, config.c_fqdn);
 663         locate_host(CC->cs_host);
 664         CC->cs_flags = 0;
 665         CC->upload_type = UPL_FILE;
 666         CC->dl_is_net = 0;
 667
 668         session_num = session_count();
 669         CC->nologin = 0;
 670         if ((config.c_maxsessions > 0)&&(session_num >= config.c_maxsessions))
 671                 CC->nologin = 1;
 672
 673         if (CC->nologin==1) {
 674            cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 675                 ERROR+MAX_SESSIONS_EXCEEDED,
 676                 config.c_nodename,config.c_maxsessions);
 677                 }
 678         else {
 679            cprintf("%d %s Citadel/UX server ready.\n",OK,config.c_nodename);
 680                 }
 681
 682         lprintf(3, "citserver[%3d]: started.\n", CC->cs_pid);
 683
 684         /* Run any session startup routines registered by loadable modules */
 685         PerformSessionHooks(EVT_START);
 686
 687         rec_log(CL_CONNECT, "");
 688
 689         do {
 690                 time(&CC->lastcmd);
 691                 if (client_gets(cmdbuf) < 1) cleanup(EXIT_NULL);
 692                 lprintf(5, "citserver[%3d]: %s\n", CC->cs_pid, cmdbuf);
 693                 /* hook_command_received(CC->cs_pid, cmdbuf); FIX */
 694
 695                 /*
 696                  * Let other clients see the last command we executed, but
 697                  * exclude NOOP because that would be boring.
 698                  */
 699                 if (strncasecmp(cmdbuf, "NOOP", 4)) {
 700                         strcpy(CC->lastcmdname, "    ");
 701                         strncpy(CC->lastcmdname, cmdbuf, 4);
 702                         time(&CC->lastidle);
 703                         }
 704
 705                 if ((strncasecmp(cmdbuf, "ENT0", 4)) && (strncasecmp(cmdbuf, "MESG", 4)) && (strncasecmp(cmdbuf, "MSGS", 4)))
 706                 {
 707                    CC->cs_flags &= ~CS_POSTING;
 708                 }
 709
 710 /*
 711  * This loop recognizes all server commands.
 712  */
 713
 714                 if (!strncasecmp(cmdbuf,"NOOP",4)) {
 715                         cprintf("%d%cok\n",OK,check_express());
 716                         }
 717
 718                 else if (!strncasecmp(cmdbuf,"QUIT",4)) {
 719                         cprintf("%d Goodbye.\n",OK);
 720                         }
 721
 722                 else if (!strncasecmp(cmdbuf,"LOUT",4)) {
 723                         if (CC->logged_in) logout(CC);
 724                         cprintf("%d logged out.\n",OK);
 725                         }
 726
 727                 else if (!strncasecmp(cmdbuf,"USER",4)) {
 728                         cmd_user(&cmdbuf[5]);
 729                         }
 730
 731                 else if (!strncasecmp(cmdbuf,"PASS",4)) {
 732                         cmd_pass(&cmdbuf[5]);
 733                         }
 734
 735                 else if (!strncasecmp(cmdbuf,"NEWU",4)) {
 736                         cmd_newu(&cmdbuf[5]);
 737                         }
 738
 739                 else if (!strncasecmp(cmdbuf,"SETP",4)) {
 740                         cmd_setp(&cmdbuf[5]);
 741                         }
 742
 743                 else if (!strncasecmp(cmdbuf,"LRMS",4)) {
 744                         cmd_lrms(&cmdbuf[5]);
 745                         }
 746
 747                 else if (!strncasecmp(cmdbuf,"LKRA",4)) {
 748                         cmd_lkra(&cmdbuf[5]);
 749                         }
 750
 751                 else if (!strncasecmp(cmdbuf,"LKRN",4)) {
 752                         cmd_lkrn(&cmdbuf[5]);
 753                         }
 754
 755                 else if (!strncasecmp(cmdbuf,"LKRO",4)) {
 756                         cmd_lkro(&cmdbuf[5]);
 757                         }
 758
 759                 else if (!strncasecmp(cmdbuf,"LZRM",4)) {
 760                         cmd_lzrm(&cmdbuf[5]);
 761                         }
 762
 763                 else if (!strncasecmp(cmdbuf,"GETU",4)) {
 764                         cmd_getu();
 765                         }
 766
 767                 else if (!strncasecmp(cmdbuf,"SETU",4)) {
 768                         cmd_setu(&cmdbuf[5]);
 769                         }
 770
 771                 else if (!strncasecmp(cmdbuf,"GOTO",4)) {
 772                         cmd_goto(&cmdbuf[5]);
 773                         }
 774
 775                 else if (!strncasecmp(cmdbuf,"MSGS",4)) {
 776                         cmd_msgs(&cmdbuf[5]);
 777                         }
 778
 779                 else if (!strncasecmp(cmdbuf,"WHOK",4)) {
 780                         cmd_whok();
 781                         }
 782
 783                 else if (!strncasecmp(cmdbuf,"RDIR",4)) {
 784                         cmd_rdir();
 785                         }
 786
 787                 else if (!strncasecmp(cmdbuf,"MSG0",4)) {
 788                         cmd_msg0(&cmdbuf[5]);
 789                         }
 790
 791                 else if (!strncasecmp(cmdbuf,"MSG2",4)) {
 792                         cmd_msg2(&cmdbuf[5]);
 793                         }
 794
 795                 else if (!strncasecmp(cmdbuf,"MSG3",4)) {
 796                         cmd_msg3(&cmdbuf[5]);
 797                         }
 798
 799                 else if (!strncasecmp(cmdbuf,"INFO",4)) {
 800                         cmd_info();
 801                         }
 802
 803                 else if (!strncasecmp(cmdbuf,"SLRP",4)) {
 804                         cmd_slrp(&cmdbuf[5]);
 805                         }
 806
 807                 else if (!strncasecmp(cmdbuf,"INVT",4)) {
 808                         cmd_invt_kick(&cmdbuf[5],1);
 809                         }
 810
 811                 else if (!strncasecmp(cmdbuf,"KICK",4)) {
 812                         cmd_invt_kick(&cmdbuf[5],0);
 813                         }
 814
 815                 else if (!strncasecmp(cmdbuf,"GETR",4)) {
 816                         cmd_getr();
 817                         }
 818
 819                 else if (!strncasecmp(cmdbuf,"SETR",4)) {
 820                         cmd_setr(&cmdbuf[5]);
 821                         }
 822
 823                 else if (!strncasecmp(cmdbuf,"GETA",4)) {
 824                         cmd_geta();
 825                         }
 826
 827                 else if (!strncasecmp(cmdbuf,"SETA",4)) {
 828                         cmd_seta(&cmdbuf[5]);
 829                         }
 830
 831                 else if (!strncasecmp(cmdbuf,"ENT0",4)) {
 832                         cmd_ent0(&cmdbuf[5]);
 833                         }
 834
 835                 else if (!strncasecmp(cmdbuf,"ENT3",4)) {
 836                         cmd_ent3(&cmdbuf[5]);
 837                         }
 838
 839                 else if (!strncasecmp(cmdbuf,"RINF",4)) {
 840                         cmd_rinf();
 841                         }
 842
 843                 else if (!strncasecmp(cmdbuf,"DELE",4)) {
 844                         cmd_dele(&cmdbuf[5]);
 845                         }
 846
 847                 else if (!strncasecmp(cmdbuf,"KILL",4)) {
 848                         cmd_kill(&cmdbuf[5]);
 849                         }
 850
 851                 else if (!strncasecmp(cmdbuf,"CRE8",4)) {
 852                         cmd_cre8(&cmdbuf[5]);
 853                         }
 854
 855                 else if (!strncasecmp(cmdbuf,"MOVE",4)) {
 856                         cmd_move(&cmdbuf[5]);
 857                         }
 858
 859                 else if (!strncasecmp(cmdbuf,"FORG",4)) {
 860                         cmd_forg();
 861                         }
 862
 863                 else if (!strncasecmp(cmdbuf,"MESG",4)) {
 864                         cmd_mesg(&cmdbuf[5]);
 865                         }
 866
 867                 else if (!strncasecmp(cmdbuf,"EMSG",4)) {
 868                         cmd_emsg(&cmdbuf[5]);
 869                         }
 870
 871                 else if (!strncasecmp(cmdbuf,"GNUR",4)) {
 872                         cmd_gnur();
 873                         }
 874
 875                 else if (!strncasecmp(cmdbuf,"GREG",4)) {
 876                         cmd_greg(&cmdbuf[5]);
 877                         }
 878
 879                 else if (!strncasecmp(cmdbuf,"VALI",4)) {
 880                         cmd_vali(&cmdbuf[5]);
 881                         }
 882
 883                 else if (!strncasecmp(cmdbuf,"EINF",4)) {
 884                         cmd_einf(&cmdbuf[5]);
 885                         }
 886
 887                 else if (!strncasecmp(cmdbuf,"LIST",4)) {
 888                         cmd_list();
 889                         }
 890
 891                 else if (!strncasecmp(cmdbuf,"REGI",4)) {
 892                         cmd_regi();
 893                         }
 894
 895                 else if (!strncasecmp(cmdbuf,"CHEK",4)) {
 896                         cmd_chek();
 897                         }
 898
 899                 else if (!strncasecmp(cmdbuf,"DELF",4)) {
 900                         cmd_delf(&cmdbuf[5]);
 901                         }
 902
 903                 else if (!strncasecmp(cmdbuf,"MOVF",4)) {
 904                         cmd_movf(&cmdbuf[5]);
 905                         }
 906
 907                 else if (!strncasecmp(cmdbuf,"NETF",4)) {
 908                         cmd_netf(&cmdbuf[5]);
 909                         }
 910
 911                 else if (!strncasecmp(cmdbuf,"RWHO",4)) {
 912                         cmd_rwho();
 913                         }
 914
 915                 else if (!strncasecmp(cmdbuf,"OPEN",4)) {
 916                         cmd_open(&cmdbuf[5]);
 917                         }
 918
 919                 else if (!strncasecmp(cmdbuf,"CLOS",4)) {
 920                         cmd_clos();
 921                         }
 922
 923                 else if (!strncasecmp(cmdbuf,"UOPN",4)) {
 924                         cmd_uopn(&cmdbuf[5]);
 925                         }
 926
 927                 else if (!strncasecmp(cmdbuf,"UCLS",4)) {
 928                         cmd_ucls(&cmdbuf[5]);
 929                         }
 930
 931                 else if (!strncasecmp(cmdbuf,"READ",4)) {
 932                         cmd_read(&cmdbuf[5]);
 933                         }
 934
 935                 else if (!strncasecmp(cmdbuf,"WRIT",4)) {
 936                         cmd_writ(&cmdbuf[5]);
 937                         }
 938
 939                 else if (!strncasecmp(cmdbuf,"QUSR",4)) {
 940                         cmd_qusr(&cmdbuf[5]);
 941                         }
 942
 943                 else if (!strncasecmp(cmdbuf,"ECHO",4)) {
 944                         cmd_echo(&cmdbuf[5]);
 945                         }
 946
 947                 else if (!strncasecmp(cmdbuf,"OIMG",4)) {
 948                         cmd_oimg(&cmdbuf[5]);
 949                         }
 950
 951                 else if (!strncasecmp(cmdbuf,"MORE",4)) {
 952                         cmd_more();
 953                         }
 954
 955                 else if (!strncasecmp(cmdbuf,"NETP",4)) {
 956                         cmd_netp(&cmdbuf[5]);
 957                         }
 958
 959                 else if (!strncasecmp(cmdbuf,"NDOP",4)) {
 960                         cmd_ndop(&cmdbuf[5]);
 961                         }
 962
 963                 else if (!strncasecmp(cmdbuf,"NUOP",4)) {
 964                         cmd_nuop(&cmdbuf[5]);
 965                         }
 966
 967                 else if (!strncasecmp(cmdbuf,"LFLR",4)) {
 968                         cmd_lflr();
 969                         }
 970
 971                 else if (!strncasecmp(cmdbuf,"CFLR",4)) {
 972                         cmd_cflr(&cmdbuf[5]);
 973                         }
 974
 975                 else if (!strncasecmp(cmdbuf,"KFLR",4)) {
 976                         cmd_kflr(&cmdbuf[5]);
 977                         }
 978
 979                 else if (!strncasecmp(cmdbuf,"EFLR",4)) {
 980                         cmd_eflr(&cmdbuf[5]);
 981                         }
 982
 983                 else if (!strncasecmp(cmdbuf,"IDEN",4)) {
 984                         cmd_iden(&cmdbuf[5]);
 985                         }
 986
 987                 else if (!strncasecmp(cmdbuf,"IPGM",4)) {
 988                         cmd_ipgm(&cmdbuf[5]);
 989                         }
 990
 991                 else if (!strncasecmp(cmdbuf,"EBIO",4)) {
 992                         cmd_ebio();
 993                         }
 994
 995                 else if (!strncasecmp(cmdbuf,"RBIO",4)) {
 996                         cmd_rbio(&cmdbuf[5]);
 997                         }
 998
 999                 else if (!strncasecmp(cmdbuf,"LBIO",4)) {
1000                         cmd_lbio();
1001                         }
1002
1003                 else if (!strncasecmp(cmdbuf,"STEL",4)) {
1004                         cmd_stel(&cmdbuf[5]);
1005                         }
1006
1007                 else if (!strncasecmp(cmdbuf,"TERM",4)) {
1008                         cmd_term(&cmdbuf[5]);
1009                         }
1010
1011                 else if (!strncasecmp(cmdbuf,"DOWN",4)) {
1012                         cmd_down();
1013                         }
1014
1015                 else if (!strncasecmp(cmdbuf,"SCDN",4)) {
1016                         cmd_scdn(&cmdbuf[5]);
1017                         }
1018
1019                 else if (!strncasecmp(cmdbuf, "NSET", 4)) {
1020                         cmd_nset(&cmdbuf[5]);
1021                         }
1022
1023                 else if (!strncasecmp(cmdbuf, "UIMG", 4)) {
1024                         cmd_uimg(&cmdbuf[5]);
1025                         }
1026
1027                 else if (!strncasecmp(cmdbuf, "UCHG", 4)) {
1028                         cmd_uchg(&cmdbuf[5]);
1029                         }
1030
1031                 else if (!strncasecmp(cmdbuf, "TIME", 4)) {
1032                         cmd_time();
1033                         }
1034
1035                 else if (!strncasecmp(cmdbuf, "HCHG", 4)) {
1036                         cmd_hchg(&cmdbuf[5]);
1037                         }
1038
1039                 else if (!strncasecmp(cmdbuf, "RCHG", 4)) {
1040                         cmd_rchg(&cmdbuf[5]);
1041                         }
1042
1043                 else if (!strncasecmp(cmdbuf, "AGUP", 4)) {
1044                         cmd_agup(&cmdbuf[5]);
1045                         }
1046
1047                 else if (!strncasecmp(cmdbuf, "ASUP", 4)) {
1048                         cmd_asup(&cmdbuf[5]);
1049                         }
1050
1051                 else if (!DLoader_Exec_Cmd(cmdbuf))
1052                         {
1053                            cprintf("%d Unrecognized or unsupported command.\n",
1054                                     ERROR);
1055                         }
1056
1057                 } while(strncasecmp(cmdbuf, "QUIT", 4));
1058
1059         cleanup(EXIT_NORMAL);
1060         return(NULL);
1061         }