citadel/citserver.c

   1 /* $Id$ */
   2 #include <stdlib.h>
   3 #include <unistd.h>
   4 #include <stdio.h>
   5 #include <fcntl.h>
   6 #include <signal.h>
   7 #include <time.h>
   8 #include <ctype.h>
   9 #include <string.h>
  10 #include <errno.h>
  11 #include <limits.h>
  12 #include <pthread.h>
  13 #include <syslog.h>
  14 #include <dlfcn.h>
  15 #include "citadel.h"
  16 #include "server.h"
  17 #include "sysdep_decls.h"
  18 #include "citserver.h"
  19 #include "config.h"
  20 #include "database.h"
  21 #include "housekeeping.h"
  22 #include "user_ops.h"
  23 #include "logging.h"
  24 #include "support.h"
  25 #include "msgbase.h"
  26 #include "locate_host.h"
  27 #include "room_ops.h"
  28 #include "file_ops.h"
  29 #include "dynloader.h"
  30 #include "policy.h"
  31
  32 struct CitContext *ContextList = NULL;
  33 int ScheduledShutdown = 0;
  34
  35 /*
  36  * Various things that need to be initialized at startup
  37  */
  38 void master_startup(void) {
  39         lprintf(7, "Opening databases\n");
  40         open_databases();
  41
  42         lprintf(7, "Checking floor reference counts\n");
  43         check_ref_counts();
  44
  45         lprintf(7, "Creating base rooms (if necessary)\n");
  46         create_room(BASEROOM, 0, "", 0);
  47         create_room(AIDEROOM, 4, "", 0);
  48         create_room(config.c_twitroom, 0, "", 0);
  49         }
  50
  51 /*
  52  * Cleanup routine to be called when the server is shutting down.
  53  */
  54 void master_cleanup(void) {
  55         struct CleanupFunctionHook *fcn;
  56
  57         /* Cancel all running sessions */
  58         lprintf(7, "Cancelling running sessions...\n");
  59         while (ContextList != NULL) {
  60                 kill_session(ContextList->cs_pid);
  61                 }
  62
  63         /* Run any cleanup routines registered by loadable modules */
  64         for (fcn = CleanupHookTable; fcn != NULL; fcn = fcn->next) {
  65                 (*fcn->h_function_pointer)();
  66                 }
  67
  68         /* Close databases */
  69         lprintf(7, "Closing databases\n");
  70         close_databases();
  71
  72         /* Do system-dependent stuff */
  73         sysdep_master_cleanup();
  74
  75         /* Now go away. */
  76         lprintf(3, "citserver: exiting.\n");
  77         exit(0);
  78         }
  79
  80
  81 /*
  82  * Gracefully terminate the session and thread.
  83  * (This is called as a cleanup handler by the thread library.)
  84  *
  85  * All NON-system-dependent stuff is done in this function.
  86  * System-dependent session/thread cleanup is in cleanup() in sysdep.c
  87  */
  88 void cleanup_stuff(void *arg)
  89 {
  90         struct ExpressMessage *emptr;
  91
  92         lprintf(9, "cleanup_stuff() called\n");
  93
  94         lprintf(7, "Calling logout(%d)\n", CC->cs_pid);
  95         logout(CC);
  96
  97         rec_log(CL_TERMINATE,CC->curr_user);
  98         unlink(CC->temp);
  99         lprintf(3, "citserver[%3d]: ended.\n",CC->cs_pid);
 100
 101         /* Run any cleanup routines registered by loadable modules */
 102         PerformSessionHooks(EVT_STOP);
 103
 104         syslog(LOG_NOTICE,"session %d ended", CC->cs_pid);
 105
 106         /* Deallocate any unsent express messages */
 107         begin_critical_section(S_SESSION_TABLE);
 108         while (CC->FirstExpressMessage != NULL) {
 109                 emptr = CC->FirstExpressMessage;
 110                 CC->FirstExpressMessage = CC->FirstExpressMessage->next;
 111                 free(emptr);
 112                 }
 113         end_critical_section(S_SESSION_TABLE);
 114
 115         /* Deallocate any message list we might have in memory */
 116         if (CC->msglist != NULL) free(CC->msglist);
 117
 118         /* Purge any stale user/room relationships */
 119         PurgeStaleRelationships();
 120
 121         /* Now get rid of the session and context */
 122         lprintf(7, "cleanup_stuff() calling RemoveContext(%d)\n", CC->cs_pid);
 123         RemoveContext(CC);
 124
 125         /* While we still have an extra thread with no user attached to it,
 126          * take the opportunity to do some housekeeping before exiting.
 127          */
 128         do_housekeeping();
 129         }
 130
 131
 132 /*
 133  * set_wtmpsupp()  -  alter the session listing
 134  */
 135 void set_wtmpsupp(char *newtext)
 136 {
 137         strncpy(CC->cs_room,newtext,sizeof CC->cs_room);
 138         CC->cs_room[sizeof CC->cs_room - 1] = 0;
 139         time(&CC->cs_lastupdt);
 140
 141         /* Run any routines registered by loadable modules */
 142         PerformSessionHooks(EVT_NEWROOM);
 143         }
 144
 145
 146 /*
 147  * cmd_info()  -  tell the client about this server
 148  */
 149 void cmd_info(void) {
 150         cprintf("%d Server info:\n",LISTING_FOLLOWS);
 151         cprintf("%d\n",CC->cs_pid);
 152         cprintf("%s\n",config.c_nodename);
 153         cprintf("%s\n",config.c_humannode);
 154         cprintf("%s\n",config.c_fqdn);
 155         cprintf("%s\n",CITADEL);
 156         cprintf("%d\n",REV_LEVEL);
 157         cprintf("%s\n",config.c_bbs_city);
 158         cprintf("%s\n",config.c_sysadm);
 159         cprintf("%d\n",SERVER_TYPE);
 160         cprintf("%s\n",config.c_moreprompt);
 161         cprintf("1\n"); /* 1 = yes, this system supports floors */
 162         cprintf("000\n");
 163         }
 164
 165 void cmd_rchg(char *newroomname)
 166 {
 167    if ((newroomname) && (newroomname[0]))
 168    {
 169       bzero(CC->fake_roomname, ROOMNAMELEN);
 170       strncpy(CC->fake_roomname, newroomname, ROOMNAMELEN-1);
 171    }
 172    else
 173       CC->fake_roomname[0] = '\0';
 174    cprintf("%d\n",OK);
 175 }
 176
 177 void cmd_hchg(char *newhostname)
 178 {
 179    if ((newhostname) && (newhostname[0]))
 180    {
 181       bzero(CC->fake_hostname, 25);
 182       strncpy(CC->fake_hostname, newhostname, 24);
 183    }
 184    else
 185       CC->fake_hostname[0] = '\0';
 186    cprintf("%d\n",OK);
 187 }
 188
 189 void cmd_uchg(char *newusername)
 190 {
 191    if (CC->usersupp.axlevel < 6)
 192    {
 193       cprintf("%d You must be an Aide to use UCHG.\n",
 194                 ERROR+HIGHER_ACCESS_REQUIRED);
 195       return;
 196    }
 197    if ((newusername) && (newusername[0]))
 198    {
 199       CC->cs_flags &= ~CS_STEALTH;
 200       bzero(CC->fake_username, 32);
 201       if (strncasecmp(newusername, CC->curr_user, strlen(CC->curr_user)))
 202          strncpy(CC->fake_username, newusername, 31);
 203    }
 204    else
 205    {
 206       CC->fake_username[0] = '\0';
 207       CC->cs_flags |= CS_STEALTH;
 208    }
 209    cprintf("%d\n",OK);
 210 }
 211
 212 /*
 213  * returns an asterisk if there are any express messages waiting,
 214  * space otherwise.
 215  */
 216 char check_express(void) {
 217         if (CC->FirstExpressMessage == NULL) {
 218                 return(' ');
 219                 }
 220         else {
 221                 return('*');
 222                 }
 223         }
 224
 225 void cmd_time(void)
 226 {
 227    time_t tv;
 228
 229    tv = time(NULL);
 230
 231    cprintf("%d %ld\n", OK, tv);
 232 }
 233
 234 /*
 235  * check a hostname against the public_clients file
 236  */
 237 int is_public_client(char *where)
 238 {
 239         char buf[256];
 240         FILE *fp;
 241
 242         if (!strcasecmp(where,"localhost")) return(1);
 243         if (!strcasecmp(where,config.c_fqdn)) return(1);
 244
 245         fp = fopen("public_clients","r");
 246         if (fp == NULL) return(0);
 247
 248         while (fgets(buf,256,fp)!=NULL) {
 249                 while (isspace((buf[strlen(buf)-1])))
 250                         buf[strlen(buf)-1] = 0;
 251                 if (!strcasecmp(buf,where)) {
 252                         fclose(fp);
 253                         return(1);
 254                         }
 255                 }
 256
 257         fclose(fp);
 258         return(0);
 259         }
 260
 261
 262 /*
 263  * the client is identifying itself to the server
 264  */
 265 void cmd_iden(char *argbuf)
 266 {
 267         int dev_code;
 268         int cli_code;
 269         int rev_level;
 270         char desc[256];
 271         char from_host[256];
 272
 273         if (num_parms(argbuf)<4) {
 274                 cprintf("%d usage error\n",ERROR);
 275                 return;
 276                 }
 277
 278         dev_code = extract_int(argbuf,0);
 279         cli_code = extract_int(argbuf,1);
 280         rev_level = extract_int(argbuf,2);
 281         extract(desc,argbuf,3);
 282
 283         strncpy(from_host,config.c_fqdn,sizeof from_host);
 284         from_host[sizeof from_host - 1] = 0;
 285         if (num_parms(argbuf)>=5) extract(from_host,argbuf,4);
 286
 287         CC->cs_clientdev = dev_code;
 288         CC->cs_clienttyp = cli_code;
 289         CC->cs_clientver = rev_level;
 290         strncpy(CC->cs_clientname,desc,31);
 291         CC->cs_clientname[31] = 0;
 292
 293         if ((strlen(from_host)>0) &&
 294            (is_public_client(CC->cs_host))) {
 295                 strncpy(CC->cs_host,from_host,24);
 296                 CC->cs_host[24] = 0;
 297                 }
 298         set_wtmpsupp(CC->quickroom.QRname);
 299
 300         syslog(LOG_NOTICE,"client %d/%d/%01d.%02d (%s)\n",
 301                 dev_code,
 302                 cli_code,
 303                 (rev_level / 100),
 304                 (rev_level % 100),
 305                 desc);
 306                 cprintf("%d Ok\n",OK);
 307         }
 308
 309
 310 /*
 311  * enter or exit "stealth mode"
 312  */
 313 void cmd_stel(char *cmdbuf)
 314 {
 315         int requested_mode;
 316
 317         requested_mode = extract_int(cmdbuf,0);
 318         if (requested_mode !=0) requested_mode = 1;
 319
 320         if (!CC->logged_in) {
 321                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 322                 return;
 323                 }
 324
 325         if (CC->usersupp.axlevel < 6) {
 326                 cprintf("%d You must be an Aide to use stealth mode.\n",
 327                         ERROR+HIGHER_ACCESS_REQUIRED);
 328                 return;
 329                 }
 330
 331         if (CC->cs_flags & CS_STEALTH) {
 332                 if (requested_mode == 0)
 333                         CC->cs_flags = CC->cs_flags-CS_STEALTH;
 334                 }
 335         else {
 336                 if (requested_mode == 1)
 337                         CC->cs_flags = CC->cs_flags|CS_STEALTH;
 338                 }
 339
 340         set_wtmpsupp(CC->quickroom.QRname);
 341         cprintf("%d Ok\n",OK);
 342         }
 343
 344
 345
 346
 347 /*
 348  * display system messages or help
 349  */
 350 void cmd_mesg(char *mname)
 351 {
 352         FILE *mfp;
 353         char targ[256];
 354         char buf[256];
 355         char *dirs[2];
 356
 357         extract(buf,mname,0);
 358
 359
 360         dirs[0]=malloc(64);
 361         dirs[1]=malloc(64);
 362         strcpy(dirs[0],"messages");
 363         strcpy(dirs[1],"help");
 364         mesg_locate(targ,buf,2,dirs);
 365         free(dirs[0]);
 366         free(dirs[1]);
 367
 368
 369         if (strlen(targ)==0) {
 370                 cprintf("%d '%s' not found.\n",ERROR,mname);
 371                 return;
 372                 }
 373
 374         mfp = fopen(targ,"r");
 375         if (mfp==NULL) {
 376                 cprintf("%d Cannot open '%s': %s\n",
 377                         ERROR,targ,strerror(errno));
 378                 return;
 379                 }
 380         cprintf("%d %s\n",LISTING_FOLLOWS,buf);
 381
 382         while (fgets(buf,255,mfp)!=NULL) {
 383                 buf[strlen(buf)-1] = 0;
 384                 do_help_subst(buf);
 385                 cprintf("%s\n",buf);
 386                 }
 387
 388         fclose(mfp);
 389         cprintf("000\n");
 390         }
 391
 392
 393 /*
 394  * enter system messages or help
 395  */
 396 void cmd_emsg(char *mname)
 397 {
 398         FILE *mfp;
 399         char targ[256];
 400         char buf[256];
 401         char *dirs[2];
 402         int a;
 403
 404         if (CC->usersupp.axlevel < 6) {
 405                 cprintf("%d You must be an Aide to edit system messages.\n",
 406                         ERROR+HIGHER_ACCESS_REQUIRED);
 407                 return;
 408                 }
 409
 410         extract(buf,mname,0);
 411         for (a=0; a<strlen(buf); ++a) {         /* security measure */
 412                 if (buf[a] == '/') buf[a] = '.';
 413                 }
 414
 415         dirs[0]=malloc(64);
 416         dirs[1]=malloc(64);
 417         strcpy(dirs[0],"messages");
 418         strcpy(dirs[1],"help");
 419         mesg_locate(targ,buf,2,dirs);
 420         free(dirs[0]);
 421         free(dirs[1]);
 422
 423         if (strlen(targ)==0) {
 424                 sprintf(targ, "./help/%s", buf);
 425                 }
 426
 427         mfp = fopen(targ,"w");
 428         if (mfp==NULL) {
 429                 cprintf("%d Cannot open '%s': %s\n",
 430                         ERROR,targ,strerror(errno));
 431                 return;
 432                 }
 433         cprintf("%d %s\n", SEND_LISTING, targ);
 434
 435         while (client_gets(buf), strcmp(buf, "000")) {
 436                 fprintf(mfp, "%s\n", buf);
 437                 }
 438
 439         fclose(mfp);
 440         }
 441
 442
 443 /*
 444  * who's online
 445  */
 446 void cmd_rwho(void) {
 447         struct CitContext *cptr;
 448         int spoofed = 0;
 449         int aide;
 450         char un[40], room[40], host[40], flags[5];
 451
 452         aide = CC->usersupp.axlevel >= 6;
 453         cprintf("%d\n",LISTING_FOLLOWS);
 454
 455         for (cptr = ContextList; cptr != NULL; cptr = cptr->next)
 456         {
 457                 flags[0] = '\0';
 458                 spoofed = 0;
 459
 460                 if (cptr->cs_flags & CS_POSTING)
 461                    strcat(flags, "*");
 462                 else
 463                    strcat(flags, ".");
 464
 465                 if (cptr->fake_username[0])
 466                 {
 467                    strcpy(un, cptr->fake_username);
 468                    spoofed = 1;
 469                 }
 470                 else
 471                    strcpy(un, cptr->curr_user);
 472
 473                 if (cptr->fake_hostname[0])
 474                 {
 475                    strcpy(host, cptr->fake_hostname);
 476                    spoofed = 1;
 477                 }
 478                 else
 479                    strcpy(host, cptr->cs_host);
 480
 481                 if (cptr->fake_roomname[0])
 482                 {
 483                    strcpy(room, cptr->fake_roomname);
 484                    spoofed = 1;
 485                 }
 486                 else
 487                    strcpy(room, cptr->cs_room);
 488
 489
 490                 if ((aide) && (spoofed))
 491                    strcat(flags, "+");
 492
 493                 if ((cptr->cs_flags & CS_STEALTH) && (aide))
 494                    strcat(flags, "-");
 495
 496                 if (((cptr->cs_flags&CS_STEALTH)==0) || (aide))
 497                 {
 498                         cprintf("%d|%s|%s|%s|%s|%ld|%s|%s\n",
 499                                 cptr->cs_pid, un, room,
 500                                 host, cptr->cs_clientname,
 501                                 (long)(cptr->lastidle),
 502                                 cptr->lastcmdname, flags);
 503                 }
 504                 if ((spoofed) && (aide))
 505                 {
 506                         cprintf("%d|%s|%s|%s|%s|%ld|%s|%s\n",
 507                                 cptr->cs_pid, cptr->curr_user, cptr->cs_room,
 508                                 cptr->cs_host, cptr->cs_clientname,
 509                                 (long)(cptr->lastidle),
 510                                 cptr->lastcmdname, flags);
 511
 512                 }
 513         }
 514         cprintf("000\n");
 515         }
 516
 517
 518 /*
 519  * Terminate another running session
 520  */
 521 void cmd_term(char *cmdbuf)
 522 {
 523         int session_num;
 524         struct CitContext *ccptr;
 525
 526         if (!CC->logged_in) {
 527                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 528                 return;
 529                 }
 530
 531         if (CC->usersupp.axlevel < 6) {
 532                 cprintf("%d You must be an Aide to terminate sessions.\n",
 533                         ERROR+HIGHER_ACCESS_REQUIRED);
 534                 return;
 535                 }
 536
 537         session_num = extract_int(cmdbuf, 0);
 538         if (session_num == CC->cs_pid) {
 539                 cprintf("%d You can't kill your own session.\n", ERROR);
 540                 return;
 541                 }
 542
 543         for (ccptr = ContextList; ccptr != NULL; ccptr = ccptr->next) {
 544                 if (session_num == ccptr->cs_pid) {
 545                         kill_session(ccptr->cs_pid);
 546                         cprintf("%d Session terminated.\n", OK);
 547                         return;
 548                         }
 549                 }
 550
 551         cprintf("%d No such session.\n", ERROR);
 552         }
 553
 554
 555
 556
 557
 558 /*
 559  * get the paginator prompt
 560  */
 561 void cmd_more(void) {
 562         cprintf("%d %s\n",OK,config.c_moreprompt);
 563         }
 564
 565 /*
 566  * echo
 567  */
 568 void cmd_echo(char *etext)
 569 {
 570         cprintf("%d %s\n",OK,etext);
 571         }
 572
 573
 574
 575 /*
 576  * identify as internal program
 577  */
 578 void cmd_ipgm(char *argbuf)
 579 {
 580         int secret;
 581
 582         secret = extract_int(argbuf, 0);
 583         if (secret == config.c_ipgm_secret) {
 584                 CC->internal_pgm = 1;
 585                 strcpy(CC->curr_user, "<internal program>");
 586                 CC->cs_flags = CC->cs_flags|CS_STEALTH;
 587                 cprintf("%d Authenticated as an internal program.\n",OK);
 588                 }
 589         else {
 590                 cprintf("%d Authentication failed.\n",ERROR);
 591                 }
 592         }
 593
 594
 595 /*
 596  * Shut down the server
 597  */
 598 void cmd_down(void) {
 599         if (!CC->logged_in) {
 600                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 601                 return;
 602                 }
 603
 604         if (CC->usersupp.axlevel < 6) {
 605                 cprintf("%d You must be an Aide to shut down the server.\n",
 606                         ERROR+HIGHER_ACCESS_REQUIRED);
 607                 return;
 608                 }
 609
 610         cprintf("%d Shutting down server.  Goodbye.\n", OK);
 611         master_cleanup();
 612         }
 613
 614 /*
 615  * Schedule or cancel a server shutdown
 616  */
 617 void cmd_scdn(char *argbuf)
 618 {
 619         int new_state;
 620
 621         if (!CC->logged_in) {
 622                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 623                 return;
 624                 }
 625
 626         if (CC->usersupp.axlevel < 6) {
 627                 cprintf("%d You must be an Aide to schedule a shutdown.\n",
 628                         ERROR+HIGHER_ACCESS_REQUIRED);
 629                 return;
 630                 }
 631
 632         new_state = extract_int(argbuf, 0);
 633         if ((new_state == 0) || (new_state == 1)) {
 634                 ScheduledShutdown = new_state;
 635                 }
 636         cprintf("%d %d\n", OK, ScheduledShutdown);
 637         }
 638
 639
 640 /*
 641  * main context loop
 642  */
 643 void *context_loop(struct CitContext *con)
 644 {
 645         char cmdbuf[256];
 646         int session_num;
 647
 648         /*
 649          * Wedge our way into the context table.
 650          */
 651         InitMyContext(con);
 652
 653         /*
 654          * Initialize some variables specific to our context.
 655          */
 656         CC->logged_in = 0;
 657         CC->internal_pgm = 0;
 658         CC->download_fp = NULL;
 659         CC->upload_fp = NULL;
 660         CC->cs_pid = con->client_socket;        /* not necessarily portable */
 661         CC->FirstExpressMessage = NULL;
 662         CC->msglist = NULL;
 663         CC->num_msgs = 0;
 664         time(&CC->lastcmd);
 665         time(&CC->lastidle);
 666         strcpy(CC->lastcmdname, "    ");
 667         strcpy(CC->cs_clientname, "(unknown)");
 668         strcpy(CC->curr_user,"");
 669         strcpy(CC->net_node,"");
 670         sprintf(CC->temp,"/tmp/CitServer.%d.%d", getpid(), CC->cs_pid);
 671         strcpy(CC->cs_room, "");
 672         strncpy(CC->cs_host, config.c_fqdn, sizeof CC->cs_host);
 673         CC->cs_host[sizeof CC->cs_host - 1] = 0;
 674         locate_host(CC->cs_host);
 675         CC->cs_flags = 0;
 676         CC->upload_type = UPL_FILE;
 677         CC->dl_is_net = 0;
 678
 679         session_num = session_count();
 680         CC->nologin = 0;
 681         if ((config.c_maxsessions > 0)&&(session_num >= config.c_maxsessions))
 682                 CC->nologin = 1;
 683
 684         if (CC->nologin==1) {
 685            cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 686                 ERROR+MAX_SESSIONS_EXCEEDED,
 687                 config.c_nodename,config.c_maxsessions);
 688                 }
 689         else {
 690            cprintf("%d %s Citadel/UX server ready.\n",OK,config.c_nodename);
 691                 }
 692
 693         lprintf(3, "citserver[%3d]: started.\n", CC->cs_pid);
 694
 695         /* Run any session startup routines registered by loadable modules */
 696         PerformSessionHooks(EVT_START);
 697
 698         rec_log(CL_CONNECT, "");
 699
 700         do {
 701                 time(&CC->lastcmd);
 702                 bzero(cmdbuf, sizeof cmdbuf); /* Clear it, just in case */
 703                 if (client_gets(cmdbuf) < 1) cleanup(EXIT_NULL);
 704                 lprintf(5, "citserver[%3d]: %s\n", CC->cs_pid, cmdbuf);
 705
 706                 /*
 707                  * Let other clients see the last command we executed, but
 708                  * exclude NOOP because that would be boring.
 709                  */
 710                 if (strncasecmp(cmdbuf, "NOOP", 4)) {
 711                         strcpy(CC->lastcmdname, "    ");
 712                         strncpy(CC->lastcmdname, cmdbuf, 4);
 713                         time(&CC->lastidle);
 714                         }
 715
 716                 if ((strncasecmp(cmdbuf, "ENT0", 4)) && (strncasecmp(cmdbuf, "MESG", 4)) && (strncasecmp(cmdbuf, "MSGS", 4)))
 717                 {
 718                    CC->cs_flags &= ~CS_POSTING;
 719                 }
 720
 721 /*
 722  * This loop recognizes all server commands.
 723  */
 724
 725                 if (!strncasecmp(cmdbuf,"NOOP",4)) {
 726                         cprintf("%d%cok\n",OK,check_express());
 727                         }
 728
 729                 else if (!strncasecmp(cmdbuf,"QUIT",4)) {
 730                         cprintf("%d Goodbye.\n",OK);
 731                         }
 732
 733                 else if (!strncasecmp(cmdbuf,"LOUT",4)) {
 734                         if (CC->logged_in) logout(CC);
 735                         cprintf("%d logged out.\n",OK);
 736                         }
 737
 738                 else if (!strncasecmp(cmdbuf,"USER",4)) {
 739                         cmd_user(&cmdbuf[5]);
 740                         }
 741
 742                 else if (!strncasecmp(cmdbuf,"PASS",4)) {
 743                         cmd_pass(&cmdbuf[5]);
 744                         }
 745
 746                 else if (!strncasecmp(cmdbuf,"NEWU",4)) {
 747                         cmd_newu(&cmdbuf[5]);
 748                         }
 749
 750                 else if (!strncasecmp(cmdbuf,"SETP",4)) {
 751                         cmd_setp(&cmdbuf[5]);
 752                         }
 753
 754                 else if (!strncasecmp(cmdbuf,"LRMS",4)) {
 755                         cmd_lrms(&cmdbuf[5]);
 756                         }
 757
 758                 else if (!strncasecmp(cmdbuf,"LKRA",4)) {
 759                         cmd_lkra(&cmdbuf[5]);
 760                         }
 761
 762                 else if (!strncasecmp(cmdbuf,"LKRN",4)) {
 763                         cmd_lkrn(&cmdbuf[5]);
 764                         }
 765
 766                 else if (!strncasecmp(cmdbuf,"LKRO",4)) {
 767                         cmd_lkro(&cmdbuf[5]);
 768                         }
 769
 770                 else if (!strncasecmp(cmdbuf,"LZRM",4)) {
 771                         cmd_lzrm(&cmdbuf[5]);
 772                         }
 773
 774                 else if (!strncasecmp(cmdbuf,"GETU",4)) {
 775                         cmd_getu();
 776                         }
 777
 778                 else if (!strncasecmp(cmdbuf,"SETU",4)) {
 779                         cmd_setu(&cmdbuf[5]);
 780                         }
 781
 782                 else if (!strncasecmp(cmdbuf,"GOTO",4)) {
 783                         cmd_goto(&cmdbuf[5]);
 784                         }
 785
 786                 else if (!strncasecmp(cmdbuf,"MSGS",4)) {
 787                         cmd_msgs(&cmdbuf[5]);
 788                         }
 789
 790                 else if (!strncasecmp(cmdbuf,"WHOK",4)) {
 791                         cmd_whok();
 792                         }
 793
 794                 else if (!strncasecmp(cmdbuf,"RDIR",4)) {
 795                         cmd_rdir();
 796                         }
 797
 798                 else if (!strncasecmp(cmdbuf,"MSG0",4)) {
 799                         cmd_msg0(&cmdbuf[5]);
 800                         }
 801
 802                 else if (!strncasecmp(cmdbuf,"MSG2",4)) {
 803                         cmd_msg2(&cmdbuf[5]);
 804                         }
 805
 806                 else if (!strncasecmp(cmdbuf,"MSG3",4)) {
 807                         cmd_msg3(&cmdbuf[5]);
 808                         }
 809
 810                 else if (!strncasecmp(cmdbuf,"INFO",4)) {
 811                         cmd_info();
 812                         }
 813
 814                 else if (!strncasecmp(cmdbuf,"SLRP",4)) {
 815                         cmd_slrp(&cmdbuf[5]);
 816                         }
 817
 818                 else if (!strncasecmp(cmdbuf,"INVT",4)) {
 819                         cmd_invt_kick(&cmdbuf[5],1);
 820                         }
 821
 822                 else if (!strncasecmp(cmdbuf,"KICK",4)) {
 823                         cmd_invt_kick(&cmdbuf[5],0);
 824                         }
 825
 826                 else if (!strncasecmp(cmdbuf,"GETR",4)) {
 827                         cmd_getr();
 828                         }
 829
 830                 else if (!strncasecmp(cmdbuf,"SETR",4)) {
 831                         cmd_setr(&cmdbuf[5]);
 832                         }
 833
 834                 else if (!strncasecmp(cmdbuf,"GETA",4)) {
 835                         cmd_geta();
 836                         }
 837
 838                 else if (!strncasecmp(cmdbuf,"SETA",4)) {
 839                         cmd_seta(&cmdbuf[5]);
 840                         }
 841
 842                 else if (!strncasecmp(cmdbuf,"ENT0",4)) {
 843                         cmd_ent0(&cmdbuf[5]);
 844                         }
 845
 846                 else if (!strncasecmp(cmdbuf,"ENT3",4)) {
 847                         cmd_ent3(&cmdbuf[5]);
 848                         }
 849
 850                 else if (!strncasecmp(cmdbuf,"RINF",4)) {
 851                         cmd_rinf();
 852                         }
 853
 854                 else if (!strncasecmp(cmdbuf,"DELE",4)) {
 855                         cmd_dele(&cmdbuf[5]);
 856                         }
 857
 858                 else if (!strncasecmp(cmdbuf,"KILL",4)) {
 859                         cmd_kill(&cmdbuf[5]);
 860                         }
 861
 862                 else if (!strncasecmp(cmdbuf,"CRE8",4)) {
 863                         cmd_cre8(&cmdbuf[5]);
 864                         }
 865
 866                 else if (!strncasecmp(cmdbuf,"MOVE",4)) {
 867                         cmd_move(&cmdbuf[5]);
 868                         }
 869
 870                 else if (!strncasecmp(cmdbuf,"FORG",4)) {
 871                         cmd_forg();
 872                         }
 873
 874                 else if (!strncasecmp(cmdbuf,"MESG",4)) {
 875                         cmd_mesg(&cmdbuf[5]);
 876                         }
 877
 878                 else if (!strncasecmp(cmdbuf,"EMSG",4)) {
 879                         cmd_emsg(&cmdbuf[5]);
 880                         }
 881
 882                 else if (!strncasecmp(cmdbuf,"GNUR",4)) {
 883                         cmd_gnur();
 884                         }
 885
 886                 else if (!strncasecmp(cmdbuf,"GREG",4)) {
 887                         cmd_greg(&cmdbuf[5]);
 888                         }
 889
 890                 else if (!strncasecmp(cmdbuf,"VALI",4)) {
 891                         cmd_vali(&cmdbuf[5]);
 892                         }
 893
 894                 else if (!strncasecmp(cmdbuf,"EINF",4)) {
 895                         cmd_einf(&cmdbuf[5]);
 896                         }
 897
 898                 else if (!strncasecmp(cmdbuf,"LIST",4)) {
 899                         cmd_list();
 900                         }
 901
 902                 else if (!strncasecmp(cmdbuf,"REGI",4)) {
 903                         cmd_regi();
 904                         }
 905
 906                 else if (!strncasecmp(cmdbuf,"CHEK",4)) {
 907                         cmd_chek();
 908                         }
 909
 910                 else if (!strncasecmp(cmdbuf,"DELF",4)) {
 911                         cmd_delf(&cmdbuf[5]);
 912                         }
 913
 914                 else if (!strncasecmp(cmdbuf,"MOVF",4)) {
 915                         cmd_movf(&cmdbuf[5]);
 916                         }
 917
 918                 else if (!strncasecmp(cmdbuf,"NETF",4)) {
 919                         cmd_netf(&cmdbuf[5]);
 920                         }
 921
 922                 else if (!strncasecmp(cmdbuf,"RWHO",4)) {
 923                         cmd_rwho();
 924                         }
 925
 926                 else if (!strncasecmp(cmdbuf,"OPEN",4)) {
 927                         cmd_open(&cmdbuf[5]);
 928                         }
 929
 930                 else if (!strncasecmp(cmdbuf,"CLOS",4)) {
 931                         cmd_clos();
 932                         }
 933
 934                 else if (!strncasecmp(cmdbuf,"UOPN",4)) {
 935                         cmd_uopn(&cmdbuf[5]);
 936                         }
 937
 938                 else if (!strncasecmp(cmdbuf,"UCLS",4)) {
 939                         cmd_ucls(&cmdbuf[5]);
 940                         }
 941
 942                 else if (!strncasecmp(cmdbuf,"READ",4)) {
 943                         cmd_read(&cmdbuf[5]);
 944                         }
 945
 946                 else if (!strncasecmp(cmdbuf,"WRIT",4)) {
 947                         cmd_writ(&cmdbuf[5]);
 948                         }
 949
 950                 else if (!strncasecmp(cmdbuf,"QUSR",4)) {
 951                         cmd_qusr(&cmdbuf[5]);
 952                         }
 953
 954                 else if (!strncasecmp(cmdbuf,"ECHO",4)) {
 955                         cmd_echo(&cmdbuf[5]);
 956                         }
 957
 958                 else if (!strncasecmp(cmdbuf,"OIMG",4)) {
 959                         cmd_oimg(&cmdbuf[5]);
 960                         }
 961
 962                 else if (!strncasecmp(cmdbuf,"MORE",4)) {
 963                         cmd_more();
 964                         }
 965
 966                 else if (!strncasecmp(cmdbuf,"NETP",4)) {
 967                         cmd_netp(&cmdbuf[5]);
 968                         }
 969
 970                 else if (!strncasecmp(cmdbuf,"NDOP",4)) {
 971                         cmd_ndop(&cmdbuf[5]);
 972                         }
 973
 974                 else if (!strncasecmp(cmdbuf,"NUOP",4)) {
 975                         cmd_nuop(&cmdbuf[5]);
 976                         }
 977
 978                 else if (!strncasecmp(cmdbuf,"LFLR",4)) {
 979                         cmd_lflr();
 980                         }
 981
 982                 else if (!strncasecmp(cmdbuf,"CFLR",4)) {
 983                         cmd_cflr(&cmdbuf[5]);
 984                         }
 985
 986                 else if (!strncasecmp(cmdbuf,"KFLR",4)) {
 987                         cmd_kflr(&cmdbuf[5]);
 988                         }
 989
 990                 else if (!strncasecmp(cmdbuf,"EFLR",4)) {
 991                         cmd_eflr(&cmdbuf[5]);
 992                         }
 993
 994                 else if (!strncasecmp(cmdbuf,"IDEN",4)) {
 995                         cmd_iden(&cmdbuf[5]);
 996                         }
 997
 998                 else if (!strncasecmp(cmdbuf,"IPGM",4)) {
 999                         cmd_ipgm(&cmdbuf[5]);
1000                         }
1001
1002                 else if (!strncasecmp(cmdbuf,"EBIO",4)) {
1003                         cmd_ebio();
1004                         }
1005
1006                 else if (!strncasecmp(cmdbuf,"RBIO",4)) {
1007                         cmd_rbio(&cmdbuf[5]);
1008                         }
1009
1010                 else if (!strncasecmp(cmdbuf,"LBIO",4)) {
1011                         cmd_lbio();
1012                         }
1013
1014                 else if (!strncasecmp(cmdbuf,"STEL",4)) {
1015                         cmd_stel(&cmdbuf[5]);
1016                         }
1017
1018                 else if (!strncasecmp(cmdbuf,"TERM",4)) {
1019                         cmd_term(&cmdbuf[5]);
1020                         }
1021
1022                 else if (!strncasecmp(cmdbuf,"DOWN",4)) {
1023                         cmd_down();
1024                         }
1025
1026                 else if (!strncasecmp(cmdbuf,"SCDN",4)) {
1027                         cmd_scdn(&cmdbuf[5]);
1028                         }
1029
1030                 else if (!strncasecmp(cmdbuf, "NSET", 4)) {
1031                         cmd_nset(&cmdbuf[5]);
1032                         }
1033
1034                 else if (!strncasecmp(cmdbuf, "UIMG", 4)) {
1035                         cmd_uimg(&cmdbuf[5]);
1036                         }
1037
1038                 else if (!strncasecmp(cmdbuf, "UCHG", 4)) {
1039                         cmd_uchg(&cmdbuf[5]);
1040                         }
1041
1042                 else if (!strncasecmp(cmdbuf, "TIME", 4)) {
1043                         cmd_time();
1044                         }
1045
1046                 else if (!strncasecmp(cmdbuf, "HCHG", 4)) {
1047                         cmd_hchg(&cmdbuf[5]);
1048                         }
1049
1050                 else if (!strncasecmp(cmdbuf, "RCHG", 4)) {
1051                         cmd_rchg(&cmdbuf[5]);
1052                         }
1053
1054                 else if (!strncasecmp(cmdbuf, "AGUP", 4)) {
1055                         cmd_agup(&cmdbuf[5]);
1056                         }
1057
1058                 else if (!strncasecmp(cmdbuf, "ASUP", 4)) {
1059                         cmd_asup(&cmdbuf[5]);
1060                         }
1061
1062                 else if (!strncasecmp(cmdbuf, "GPEX", 4)) {
1063                         cmd_gpex(&cmdbuf[5]);
1064                         }
1065
1066                 else if (!strncasecmp(cmdbuf, "SPEX", 4)) {
1067                         cmd_spex(&cmdbuf[5]);
1068                         }
1069
1070                 else if (!DLoader_Exec_Cmd(cmdbuf))
1071                         {
1072                            cprintf("%d Unrecognized or unsupported command.\n",
1073                                     ERROR);
1074                         }
1075
1076                 } while(strncasecmp(cmdbuf, "QUIT", 4));
1077
1078         cleanup(EXIT_NORMAL);
1079         return(NULL);
1080         }