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