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 #include "control.h"
  32
  33 struct CitContext *ContextList = NULL;
  34 int ScheduledShutdown = 0;
  35
  36 /*
  37  * Various things that need to be initialized at startup
  38  */
  39 void master_startup(void) {
  40         lprintf(7, "Opening databases\n");
  41         open_databases();
  42
  43         lprintf(7, "Checking floor reference counts\n");
  44         check_ref_counts();
  45
  46         lprintf(7, "Creating base rooms (if necessary)\n");
  47         create_room(BASEROOM, 0, "", 0);
  48         create_room(AIDEROOM, 4, "", 0);
  49         create_room(config.c_twitroom, 0, "", 0);
  50         }
  51
  52 /*
  53  * Cleanup routine to be called when the server is shutting down.
  54  */
  55 void master_cleanup(void) {
  56         struct CleanupFunctionHook *fcn;
  57
  58         /* Cancel all running sessions */
  59         lprintf(7, "Cancelling running sessions...\n");
  60         while (ContextList != NULL) {
  61                 kill_session(ContextList->cs_pid);
  62                 }
  63
  64         /* Run any cleanup routines registered by loadable modules */
  65         for (fcn = CleanupHookTable; fcn != NULL; fcn = fcn->next) {
  66                 (*fcn->h_function_pointer)();
  67                 }
  68
  69         /* Close databases */
  70         lprintf(7, "Closing databases\n");
  71         close_databases();
  72
  73         /* Do system-dependent stuff */
  74         sysdep_master_cleanup();
  75
  76         /* Now go away. */
  77         lprintf(3, "citserver: exiting.\n");
  78         exit(0);
  79         }
  80
  81
  82 /*
  83  * Gracefully terminate the session and thread.
  84  * (This is called as a cleanup handler by the thread library.)
  85  *
  86  * All NON-system-dependent stuff is done in this function.
  87  * System-dependent session/thread cleanup is in cleanup() in sysdep.c
  88  */
  89 void cleanup_stuff(void *arg)
  90 {
  91         struct ExpressMessage *emptr;
  92
  93         lprintf(9, "cleanup_stuff() called\n");
  94
  95         lprintf(7, "Calling logout(%d)\n", CC->cs_pid);
  96         logout(CC);
  97
  98         rec_log(CL_TERMINATE,CC->curr_user);
  99         unlink(CC->temp);
 100         lprintf(3, "citserver[%3d]: ended.\n",CC->cs_pid);
 101
 102         /* Run any cleanup routines registered by loadable modules */
 103         PerformSessionHooks(EVT_STOP);
 104
 105         syslog(LOG_NOTICE,"session %d ended", CC->cs_pid);
 106
 107         /* Deallocate any unsent express messages */
 108         begin_critical_section(S_SESSION_TABLE);
 109         while (CC->FirstExpressMessage != NULL) {
 110                 emptr = CC->FirstExpressMessage;
 111                 CC->FirstExpressMessage = CC->FirstExpressMessage->next;
 112                 free(emptr);
 113                 }
 114         end_critical_section(S_SESSION_TABLE);
 115
 116         /* Deallocate any message list we might have in memory */
 117         if (CC->msglist != NULL) free(CC->msglist);
 118
 119         /* Purge any stale user/room relationships */
 120         PurgeStaleRelationships();
 121
 122         /* Now get rid of the session and context */
 123         lprintf(7, "cleanup_stuff() calling RemoveContext(%d)\n", CC->cs_pid);
 124         RemoveContext(CC);
 125
 126         /* While we still have an extra thread with no user attached to it,
 127          * take the opportunity to do some housekeeping before exiting.
 128          */
 129         do_housekeeping();
 130         }
 131
 132
 133 /*
 134  * set_wtmpsupp()  -  alter the session listing
 135  */
 136 void set_wtmpsupp(char *newtext)
 137 {
 138         strncpy(CC->cs_room,newtext,sizeof CC->cs_room);
 139         CC->cs_room[sizeof CC->cs_room - 1] = 0;
 140         time(&CC->cs_lastupdt);
 141
 142         /* Run any routines registered by loadable modules */
 143         PerformSessionHooks(EVT_NEWROOM);
 144         }
 145
 146
 147 /*
 148  * cmd_info()  -  tell the client about this server
 149  */
 150 void cmd_info(void) {
 151         cprintf("%d Server info:\n",LISTING_FOLLOWS);
 152         cprintf("%d\n",CC->cs_pid);
 153         cprintf("%s\n",config.c_nodename);
 154         cprintf("%s\n",config.c_humannode);
 155         cprintf("%s\n",config.c_fqdn);
 156         cprintf("%s\n",CITADEL);
 157         cprintf("%d\n",REV_LEVEL);
 158         cprintf("%s\n",config.c_bbs_city);
 159         cprintf("%s\n",config.c_sysadm);
 160         cprintf("%d\n",SERVER_TYPE);
 161         cprintf("%s\n",config.c_moreprompt);
 162         cprintf("1\n"); /* 1 = yes, this system supports floors */
 163         cprintf("000\n");
 164         }
 165
 166 void cmd_rchg(char *newroomname)
 167 {
 168    if ((newroomname) && (newroomname[0]))
 169    {
 170       bzero(CC->fake_roomname, ROOMNAMELEN);
 171       strncpy(CC->fake_roomname, newroomname, ROOMNAMELEN-1);
 172    }
 173    else
 174       CC->fake_roomname[0] = '\0';
 175    cprintf("%d\n",OK);
 176 }
 177
 178 void cmd_hchg(char *newhostname)
 179 {
 180    if ((newhostname) && (newhostname[0]))
 181    {
 182       bzero(CC->fake_hostname, 25);
 183       strncpy(CC->fake_hostname, newhostname, 24);
 184    }
 185    else
 186       CC->fake_hostname[0] = '\0';
 187    cprintf("%d\n",OK);
 188 }
 189
 190 void cmd_uchg(char *newusername)
 191 {
 192    if (CC->usersupp.axlevel < 6)
 193    {
 194       cprintf("%d You must be an Aide to use UCHG.\n",
 195                 ERROR+HIGHER_ACCESS_REQUIRED);
 196       return;
 197    }
 198    if ((newusername) && (newusername[0]))
 199    {
 200       CC->cs_flags &= ~CS_STEALTH;
 201       bzero(CC->fake_username, 32);
 202       if (strncasecmp(newusername, CC->curr_user, strlen(CC->curr_user)))
 203          strncpy(CC->fake_username, newusername, 31);
 204    }
 205    else
 206    {
 207       CC->fake_username[0] = '\0';
 208       CC->cs_flags |= CS_STEALTH;
 209    }
 210    cprintf("%d\n",OK);
 211 }
 212
 213 /*
 214  * returns an asterisk if there are any express messages waiting,
 215  * space otherwise.
 216  */
 217 char check_express(void) {
 218         if (CC->FirstExpressMessage == NULL) {
 219                 return(' ');
 220                 }
 221         else {
 222                 return('*');
 223                 }
 224         }
 225
 226 void cmd_time(void)
 227 {
 228    time_t tv;
 229
 230    tv = time(NULL);
 231
 232    cprintf("%d %ld\n", OK, tv);
 233 }
 234
 235 /*
 236  * check a hostname against the public_clients file
 237  */
 238 int is_public_client(char *where)
 239 {
 240         char buf[256];
 241         FILE *fp;
 242
 243         if (!strcasecmp(where,"localhost")) return(1);
 244         if (!strcasecmp(where,config.c_fqdn)) return(1);
 245
 246         fp = fopen("public_clients","r");
 247         if (fp == NULL) return(0);
 248
 249         while (fgets(buf,256,fp)!=NULL) {
 250                 while (isspace((buf[strlen(buf)-1])))
 251                         buf[strlen(buf)-1] = 0;
 252                 if (!strcasecmp(buf,where)) {
 253                         fclose(fp);
 254                         return(1);
 255                         }
 256                 }
 257
 258         fclose(fp);
 259         return(0);
 260         }
 261
 262
 263 /*
 264  * the client is identifying itself to the server
 265  */
 266 void cmd_iden(char *argbuf)
 267 {
 268         int dev_code;
 269         int cli_code;
 270         int rev_level;
 271         char desc[256];
 272         char from_host[256];
 273
 274         if (num_parms(argbuf)<4) {
 275                 cprintf("%d usage error\n",ERROR);
 276                 return;
 277                 }
 278
 279         dev_code = extract_int(argbuf,0);
 280         cli_code = extract_int(argbuf,1);
 281         rev_level = extract_int(argbuf,2);
 282         extract(desc,argbuf,3);
 283
 284         strncpy(from_host,config.c_fqdn,sizeof from_host);
 285         from_host[sizeof from_host - 1] = 0;
 286         if (num_parms(argbuf)>=5) extract(from_host,argbuf,4);
 287
 288         CC->cs_clientdev = dev_code;
 289         CC->cs_clienttyp = cli_code;
 290         CC->cs_clientver = rev_level;
 291         strncpy(CC->cs_clientname,desc,31);
 292         CC->cs_clientname[31] = 0;
 293
 294         if ((strlen(from_host)>0) &&
 295            (is_public_client(CC->cs_host))) {
 296                 strncpy(CC->cs_host,from_host,24);
 297                 CC->cs_host[24] = 0;
 298                 }
 299         set_wtmpsupp(CC->quickroom.QRname);
 300
 301         syslog(LOG_NOTICE,"client %d/%d/%01d.%02d (%s)\n",
 302                 dev_code,
 303                 cli_code,
 304                 (rev_level / 100),
 305                 (rev_level % 100),
 306                 desc);
 307                 cprintf("%d Ok\n",OK);
 308         }
 309
 310
 311 /*
 312  * enter or exit "stealth mode"
 313  */
 314 void cmd_stel(char *cmdbuf)
 315 {
 316         int requested_mode;
 317
 318         requested_mode = extract_int(cmdbuf,0);
 319         if (requested_mode !=0) requested_mode = 1;
 320
 321         if (!CC->logged_in) {
 322                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 323                 return;
 324                 }
 325
 326         if (CC->usersupp.axlevel < 6) {
 327                 cprintf("%d You must be an Aide to use stealth mode.\n",
 328                         ERROR+HIGHER_ACCESS_REQUIRED);
 329                 return;
 330                 }
 331
 332         if (CC->cs_flags & CS_STEALTH) {
 333                 if (requested_mode == 0)
 334                         CC->cs_flags = CC->cs_flags-CS_STEALTH;
 335                 }
 336         else {
 337                 if (requested_mode == 1)
 338                         CC->cs_flags = CC->cs_flags|CS_STEALTH;
 339                 }
 340
 341         set_wtmpsupp(CC->quickroom.QRname);
 342         cprintf("%d Ok\n",OK);
 343         }
 344
 345
 346
 347
 348 /*
 349  * display system messages or help
 350  */
 351 void cmd_mesg(char *mname)
 352 {
 353         FILE *mfp;
 354         char targ[256];
 355         char buf[256];
 356         char *dirs[2];
 357
 358         extract(buf,mname,0);
 359
 360
 361         dirs[0]=malloc(64);
 362         dirs[1]=malloc(64);
 363         strcpy(dirs[0],"messages");
 364         strcpy(dirs[1],"help");
 365         mesg_locate(targ,buf,2,dirs);
 366         free(dirs[0]);
 367         free(dirs[1]);
 368
 369
 370         if (strlen(targ)==0) {
 371                 cprintf("%d '%s' not found.\n",ERROR,mname);
 372                 return;
 373                 }
 374
 375         mfp = fopen(targ,"r");
 376         if (mfp==NULL) {
 377                 cprintf("%d Cannot open '%s': %s\n",
 378                         ERROR,targ,strerror(errno));
 379                 return;
 380                 }
 381         cprintf("%d %s\n",LISTING_FOLLOWS,buf);
 382
 383         while (fgets(buf,255,mfp)!=NULL) {
 384                 buf[strlen(buf)-1] = 0;
 385                 do_help_subst(buf);
 386                 cprintf("%s\n",buf);
 387                 }
 388
 389         fclose(mfp);
 390         cprintf("000\n");
 391         }
 392
 393
 394 /*
 395  * enter system messages or help
 396  */
 397 void cmd_emsg(char *mname)
 398 {
 399         FILE *mfp;
 400         char targ[256];
 401         char buf[256];
 402         char *dirs[2];
 403         int a;
 404
 405         if (CC->usersupp.axlevel < 6) {
 406                 cprintf("%d You must be an Aide to edit system messages.\n",
 407                         ERROR+HIGHER_ACCESS_REQUIRED);
 408                 return;
 409                 }
 410
 411         extract(buf,mname,0);
 412         for (a=0; a<strlen(buf); ++a) {         /* security measure */
 413                 if (buf[a] == '/') buf[a] = '.';
 414                 }
 415
 416         dirs[0]=malloc(64);
 417         dirs[1]=malloc(64);
 418         strcpy(dirs[0],"messages");
 419         strcpy(dirs[1],"help");
 420         mesg_locate(targ,buf,2,dirs);
 421         free(dirs[0]);
 422         free(dirs[1]);
 423
 424         if (strlen(targ)==0) {
 425                 sprintf(targ, "./help/%s", buf);
 426                 }
 427
 428         mfp = fopen(targ,"w");
 429         if (mfp==NULL) {
 430                 cprintf("%d Cannot open '%s': %s\n",
 431                         ERROR,targ,strerror(errno));
 432                 return;
 433                 }
 434         cprintf("%d %s\n", SEND_LISTING, targ);
 435
 436         while (client_gets(buf), strcmp(buf, "000")) {
 437                 fprintf(mfp, "%s\n", buf);
 438                 }
 439
 440         fclose(mfp);
 441         }
 442
 443
 444 /*
 445  * who's online
 446  */
 447 void cmd_rwho(void) {
 448         struct CitContext *cptr;
 449         int spoofed = 0;
 450         int aide;
 451         char un[40], room[40], host[40], flags[5];
 452
 453         aide = CC->usersupp.axlevel >= 6;
 454         cprintf("%d\n",LISTING_FOLLOWS);
 455
 456         for (cptr = ContextList; cptr != NULL; cptr = cptr->next)
 457         {
 458                 flags[0] = '\0';
 459                 spoofed = 0;
 460
 461                 if (cptr->cs_flags & CS_POSTING)
 462                    strcat(flags, "*");
 463                 else
 464                    strcat(flags, ".");
 465
 466                 if (cptr->fake_username[0])
 467                 {
 468                    strcpy(un, cptr->fake_username);
 469                    spoofed = 1;
 470                 }
 471                 else
 472                    strcpy(un, cptr->curr_user);
 473
 474                 if (cptr->fake_hostname[0])
 475                 {
 476                    strcpy(host, cptr->fake_hostname);
 477                    spoofed = 1;
 478                 }
 479                 else
 480                    strcpy(host, cptr->cs_host);
 481
 482                 if (cptr->fake_roomname[0])
 483                 {
 484                    strcpy(room, cptr->fake_roomname);
 485                    spoofed = 1;
 486                 }
 487                 else
 488                    strcpy(room, cptr->cs_room);
 489
 490
 491                 if ((aide) && (spoofed))
 492                    strcat(flags, "+");
 493
 494                 if ((cptr->cs_flags & CS_STEALTH) && (aide))
 495                    strcat(flags, "-");
 496
 497                 if (((cptr->cs_flags&CS_STEALTH)==0) || (aide))
 498                 {
 499                         cprintf("%d|%s|%s|%s|%s|%ld|%s|%s\n",
 500                                 cptr->cs_pid, un, room,
 501                                 host, cptr->cs_clientname,
 502                                 (long)(cptr->lastidle),
 503                                 cptr->lastcmdname, flags);
 504                 }
 505                 if ((spoofed) && (aide))
 506                 {
 507                         cprintf("%d|%s|%s|%s|%s|%ld|%s|%s\n",
 508                                 cptr->cs_pid, cptr->curr_user, cptr->cs_room,
 509                                 cptr->cs_host, cptr->cs_clientname,
 510                                 (long)(cptr->lastidle),
 511                                 cptr->lastcmdname, flags);
 512
 513                 }
 514         }
 515         cprintf("000\n");
 516         }
 517
 518
 519 /*
 520  * Terminate another running session
 521  */
 522 void cmd_term(char *cmdbuf)
 523 {
 524         int session_num;
 525         struct CitContext *ccptr;
 526
 527         if (!CC->logged_in) {
 528                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 529                 return;
 530                 }
 531
 532         if (CC->usersupp.axlevel < 6) {
 533                 cprintf("%d You must be an Aide to terminate sessions.\n",
 534                         ERROR+HIGHER_ACCESS_REQUIRED);
 535                 return;
 536                 }
 537
 538         session_num = extract_int(cmdbuf, 0);
 539         if (session_num == CC->cs_pid) {
 540                 cprintf("%d You can't kill your own session.\n", ERROR);
 541                 return;
 542                 }
 543
 544         for (ccptr = ContextList; ccptr != NULL; ccptr = ccptr->next) {
 545                 if (session_num == ccptr->cs_pid) {
 546                         kill_session(ccptr->cs_pid);
 547                         cprintf("%d Session terminated.\n", OK);
 548                         return;
 549                         }
 550                 }
 551
 552         cprintf("%d No such session.\n", ERROR);
 553         }
 554
 555
 556
 557
 558
 559 /*
 560  * get the paginator prompt
 561  */
 562 void cmd_more(void) {
 563         cprintf("%d %s\n",OK,config.c_moreprompt);
 564         }
 565
 566 /*
 567  * echo
 568  */
 569 void cmd_echo(char *etext)
 570 {
 571         cprintf("%d %s\n",OK,etext);
 572         }
 573
 574
 575
 576 /*
 577  * identify as internal program
 578  */
 579 void cmd_ipgm(char *argbuf)
 580 {
 581         int secret;
 582
 583         secret = extract_int(argbuf, 0);
 584         if (secret == config.c_ipgm_secret) {
 585                 CC->internal_pgm = 1;
 586                 strcpy(CC->curr_user, "<internal program>");
 587                 CC->cs_flags = CC->cs_flags|CS_STEALTH;
 588                 cprintf("%d Authenticated as an internal program.\n",OK);
 589                 }
 590         else {
 591                 cprintf("%d Authentication failed.\n",ERROR);
 592                 }
 593         }
 594
 595
 596 /*
 597  * Shut down the server
 598  */
 599 void cmd_down(void) {
 600         if (!CC->logged_in) {
 601                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 602                 return;
 603                 }
 604
 605         if (CC->usersupp.axlevel < 6) {
 606                 cprintf("%d You must be an Aide to shut down the server.\n",
 607                         ERROR+HIGHER_ACCESS_REQUIRED);
 608                 return;
 609                 }
 610
 611         cprintf("%d Shutting down server.  Goodbye.\n", OK);
 612         master_cleanup();
 613         }
 614
 615 /*
 616  * Schedule or cancel a server shutdown
 617  */
 618 void cmd_scdn(char *argbuf)
 619 {
 620         int new_state;
 621
 622         if (!CC->logged_in) {
 623                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 624                 return;
 625                 }
 626
 627         if (CC->usersupp.axlevel < 6) {
 628                 cprintf("%d You must be an Aide to schedule a shutdown.\n",
 629                         ERROR+HIGHER_ACCESS_REQUIRED);
 630                 return;
 631                 }
 632
 633         new_state = extract_int(argbuf, 0);
 634         if ((new_state == 0) || (new_state == 1)) {
 635                 ScheduledShutdown = new_state;
 636                 }
 637         cprintf("%d %d\n", OK, ScheduledShutdown);
 638         }
 639
 640
 641 /*
 642  * main context loop
 643  */
 644 void *context_loop(struct CitContext *con)
 645 {
 646         char cmdbuf[256];
 647         int session_num;
 648
 649         /*
 650          * Wedge our way into the context table.
 651          */
 652         InitMyContext(con);
 653
 654         /*
 655          * Initialize some variables specific to our context.
 656          */
 657         CC->logged_in = 0;
 658         CC->internal_pgm = 0;
 659         CC->download_fp = NULL;
 660         CC->upload_fp = NULL;
 661         CC->cs_pid = con->client_socket;        /* not necessarily portable */
 662         CC->FirstExpressMessage = NULL;
 663         CC->msglist = NULL;
 664         CC->num_msgs = 0;
 665         time(&CC->lastcmd);
 666         time(&CC->lastidle);
 667         strcpy(CC->lastcmdname, "    ");
 668         strcpy(CC->cs_clientname, "(unknown)");
 669         strcpy(CC->curr_user,"");
 670         strcpy(CC->net_node,"");
 671         sprintf(CC->temp,"/tmp/CitServer.%d.%d", getpid(), CC->cs_pid);
 672         strcpy(CC->cs_room, "");
 673         strncpy(CC->cs_host, config.c_fqdn, sizeof CC->cs_host);
 674         CC->cs_host[sizeof CC->cs_host - 1] = 0;
 675         locate_host(CC->cs_host);
 676         CC->cs_flags = 0;
 677         CC->upload_type = UPL_FILE;
 678         CC->dl_is_net = 0;
 679
 680         session_num = session_count();
 681         CC->nologin = 0;
 682         if ((config.c_maxsessions > 0)&&(session_num >= config.c_maxsessions))
 683                 CC->nologin = 1;
 684
 685         if (CC->nologin==1) {
 686            cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 687                 ERROR+MAX_SESSIONS_EXCEEDED,
 688                 config.c_nodename,config.c_maxsessions);
 689                 }
 690         else {
 691            cprintf("%d %s Citadel/UX server ready.\n",OK,config.c_nodename);
 692                 }
 693
 694         lprintf(3, "citserver[%3d]: started.\n", CC->cs_pid);
 695
 696         /* Run any session startup routines registered by loadable modules */
 697         PerformSessionHooks(EVT_START);
 698
 699         rec_log(CL_CONNECT, "");
 700
 701         do {
 702                 time(&CC->lastcmd);
 703                 bzero(cmdbuf, sizeof cmdbuf); /* Clear it, just in case */
 704                 if (client_gets(cmdbuf) < 1) cleanup(EXIT_NULL);
 705                 lprintf(5, "citserver[%3d]: %s\n", CC->cs_pid, cmdbuf);
 706
 707                 /*
 708                  * Let other clients see the last command we executed, but
 709                  * exclude NOOP because that would be boring.
 710                  */
 711                 if (strncasecmp(cmdbuf, "NOOP", 4)) {
 712                         strcpy(CC->lastcmdname, "    ");
 713                         strncpy(CC->lastcmdname, cmdbuf, 4);
 714                         time(&CC->lastidle);
 715                         }
 716
 717                 if ((strncasecmp(cmdbuf, "ENT0", 4)) && (strncasecmp(cmdbuf, "MESG", 4)) && (strncasecmp(cmdbuf, "MSGS", 4)))
 718                 {
 719                    CC->cs_flags &= ~CS_POSTING;
 720                 }
 721
 722 /*
 723  * This loop recognizes all server commands.
 724  */
 725
 726                 if (!strncasecmp(cmdbuf,"NOOP",4)) {
 727                         cprintf("%d%cok\n",OK,check_express());
 728                         }
 729
 730                 else if (!strncasecmp(cmdbuf,"QUIT",4)) {
 731                         cprintf("%d Goodbye.\n",OK);
 732                         }
 733
 734                 else if (!strncasecmp(cmdbuf,"LOUT",4)) {
 735                         if (CC->logged_in) logout(CC);
 736                         cprintf("%d logged out.\n",OK);
 737                         }
 738
 739                 else if (!strncasecmp(cmdbuf,"USER",4)) {
 740                         cmd_user(&cmdbuf[5]);
 741                         }
 742
 743                 else if (!strncasecmp(cmdbuf,"PASS",4)) {
 744                         cmd_pass(&cmdbuf[5]);
 745                         }
 746
 747                 else if (!strncasecmp(cmdbuf,"NEWU",4)) {
 748                         cmd_newu(&cmdbuf[5]);
 749                         }
 750
 751                 else if (!strncasecmp(cmdbuf,"SETP",4)) {
 752                         cmd_setp(&cmdbuf[5]);
 753                         }
 754
 755                 else if (!strncasecmp(cmdbuf,"LRMS",4)) {
 756                         cmd_lrms(&cmdbuf[5]);
 757                         }
 758
 759                 else if (!strncasecmp(cmdbuf,"LKRA",4)) {
 760                         cmd_lkra(&cmdbuf[5]);
 761                         }
 762
 763                 else if (!strncasecmp(cmdbuf,"LKRN",4)) {
 764                         cmd_lkrn(&cmdbuf[5]);
 765                         }
 766
 767                 else if (!strncasecmp(cmdbuf,"LKRO",4)) {
 768                         cmd_lkro(&cmdbuf[5]);
 769                         }
 770
 771                 else if (!strncasecmp(cmdbuf,"LZRM",4)) {
 772                         cmd_lzrm(&cmdbuf[5]);
 773                         }
 774
 775                 else if (!strncasecmp(cmdbuf,"GETU",4)) {
 776                         cmd_getu();
 777                         }
 778
 779                 else if (!strncasecmp(cmdbuf,"SETU",4)) {
 780                         cmd_setu(&cmdbuf[5]);
 781                         }
 782
 783                 else if (!strncasecmp(cmdbuf,"GOTO",4)) {
 784                         cmd_goto(&cmdbuf[5]);
 785                         }
 786
 787                 else if (!strncasecmp(cmdbuf,"MSGS",4)) {
 788                         cmd_msgs(&cmdbuf[5]);
 789                         }
 790
 791                 else if (!strncasecmp(cmdbuf,"WHOK",4)) {
 792                         cmd_whok();
 793                         }
 794
 795                 else if (!strncasecmp(cmdbuf,"RDIR",4)) {
 796                         cmd_rdir();
 797                         }
 798
 799                 else if (!strncasecmp(cmdbuf,"MSG0",4)) {
 800                         cmd_msg0(&cmdbuf[5]);
 801                         }
 802
 803                 else if (!strncasecmp(cmdbuf,"MSG2",4)) {
 804                         cmd_msg2(&cmdbuf[5]);
 805                         }
 806
 807                 else if (!strncasecmp(cmdbuf,"MSG3",4)) {
 808                         cmd_msg3(&cmdbuf[5]);
 809                         }
 810
 811                 else if (!strncasecmp(cmdbuf,"INFO",4)) {
 812                         cmd_info();
 813                         }
 814
 815                 else if (!strncasecmp(cmdbuf,"SLRP",4)) {
 816                         cmd_slrp(&cmdbuf[5]);
 817                         }
 818
 819                 else if (!strncasecmp(cmdbuf,"INVT",4)) {
 820                         cmd_invt_kick(&cmdbuf[5],1);
 821                         }
 822
 823                 else if (!strncasecmp(cmdbuf,"KICK",4)) {
 824                         cmd_invt_kick(&cmdbuf[5],0);
 825                         }
 826
 827                 else if (!strncasecmp(cmdbuf,"GETR",4)) {
 828                         cmd_getr();
 829                         }
 830
 831                 else if (!strncasecmp(cmdbuf,"SETR",4)) {
 832                         cmd_setr(&cmdbuf[5]);
 833                         }
 834
 835                 else if (!strncasecmp(cmdbuf,"GETA",4)) {
 836                         cmd_geta();
 837                         }
 838
 839                 else if (!strncasecmp(cmdbuf,"SETA",4)) {
 840                         cmd_seta(&cmdbuf[5]);
 841                         }
 842
 843                 else if (!strncasecmp(cmdbuf,"ENT0",4)) {
 844                         cmd_ent0(&cmdbuf[5]);
 845                         }
 846
 847                 else if (!strncasecmp(cmdbuf,"ENT3",4)) {
 848                         cmd_ent3(&cmdbuf[5]);
 849                         }
 850
 851                 else if (!strncasecmp(cmdbuf,"RINF",4)) {
 852                         cmd_rinf();
 853                         }
 854
 855                 else if (!strncasecmp(cmdbuf,"DELE",4)) {
 856                         cmd_dele(&cmdbuf[5]);
 857                         }
 858
 859                 else if (!strncasecmp(cmdbuf,"KILL",4)) {
 860                         cmd_kill(&cmdbuf[5]);
 861                         }
 862
 863                 else if (!strncasecmp(cmdbuf,"CRE8",4)) {
 864                         cmd_cre8(&cmdbuf[5]);
 865                         }
 866
 867                 else if (!strncasecmp(cmdbuf,"MOVE",4)) {
 868                         cmd_move(&cmdbuf[5]);
 869                         }
 870
 871                 else if (!strncasecmp(cmdbuf,"FORG",4)) {
 872                         cmd_forg();
 873                         }
 874
 875                 else if (!strncasecmp(cmdbuf,"MESG",4)) {
 876                         cmd_mesg(&cmdbuf[5]);
 877                         }
 878
 879                 else if (!strncasecmp(cmdbuf,"EMSG",4)) {
 880                         cmd_emsg(&cmdbuf[5]);
 881                         }
 882
 883                 else if (!strncasecmp(cmdbuf,"GNUR",4)) {
 884                         cmd_gnur();
 885                         }
 886
 887                 else if (!strncasecmp(cmdbuf,"GREG",4)) {
 888                         cmd_greg(&cmdbuf[5]);
 889                         }
 890
 891                 else if (!strncasecmp(cmdbuf,"VALI",4)) {
 892                         cmd_vali(&cmdbuf[5]);
 893                         }
 894
 895                 else if (!strncasecmp(cmdbuf,"EINF",4)) {
 896                         cmd_einf(&cmdbuf[5]);
 897                         }
 898
 899                 else if (!strncasecmp(cmdbuf,"LIST",4)) {
 900                         cmd_list();
 901                         }
 902
 903                 else if (!strncasecmp(cmdbuf,"REGI",4)) {
 904                         cmd_regi();
 905                         }
 906
 907                 else if (!strncasecmp(cmdbuf,"CHEK",4)) {
 908                         cmd_chek();
 909                         }
 910
 911                 else if (!strncasecmp(cmdbuf,"DELF",4)) {
 912                         cmd_delf(&cmdbuf[5]);
 913                         }
 914
 915                 else if (!strncasecmp(cmdbuf,"MOVF",4)) {
 916                         cmd_movf(&cmdbuf[5]);
 917                         }
 918
 919                 else if (!strncasecmp(cmdbuf,"NETF",4)) {
 920                         cmd_netf(&cmdbuf[5]);
 921                         }
 922
 923                 else if (!strncasecmp(cmdbuf,"RWHO",4)) {
 924                         cmd_rwho();
 925                         }
 926
 927                 else if (!strncasecmp(cmdbuf,"OPEN",4)) {
 928                         cmd_open(&cmdbuf[5]);
 929                         }
 930
 931                 else if (!strncasecmp(cmdbuf,"CLOS",4)) {
 932                         cmd_clos();
 933                         }
 934
 935                 else if (!strncasecmp(cmdbuf,"UOPN",4)) {
 936                         cmd_uopn(&cmdbuf[5]);
 937                         }
 938
 939                 else if (!strncasecmp(cmdbuf,"UCLS",4)) {
 940                         cmd_ucls(&cmdbuf[5]);
 941                         }
 942
 943                 else if (!strncasecmp(cmdbuf,"READ",4)) {
 944                         cmd_read(&cmdbuf[5]);
 945                         }
 946
 947                 else if (!strncasecmp(cmdbuf,"WRIT",4)) {
 948                         cmd_writ(&cmdbuf[5]);
 949                         }
 950
 951                 else if (!strncasecmp(cmdbuf,"QUSR",4)) {
 952                         cmd_qusr(&cmdbuf[5]);
 953                         }
 954
 955                 else if (!strncasecmp(cmdbuf,"ECHO",4)) {
 956                         cmd_echo(&cmdbuf[5]);
 957                         }
 958
 959                 else if (!strncasecmp(cmdbuf,"OIMG",4)) {
 960                         cmd_oimg(&cmdbuf[5]);
 961                         }
 962
 963                 else if (!strncasecmp(cmdbuf,"MORE",4)) {
 964                         cmd_more();
 965                         }
 966
 967                 else if (!strncasecmp(cmdbuf,"NETP",4)) {
 968                         cmd_netp(&cmdbuf[5]);
 969                         }
 970
 971                 else if (!strncasecmp(cmdbuf,"NDOP",4)) {
 972                         cmd_ndop(&cmdbuf[5]);
 973                         }
 974
 975                 else if (!strncasecmp(cmdbuf,"NUOP",4)) {
 976                         cmd_nuop(&cmdbuf[5]);
 977                         }
 978
 979                 else if (!strncasecmp(cmdbuf,"LFLR",4)) {
 980                         cmd_lflr();
 981                         }
 982
 983                 else if (!strncasecmp(cmdbuf,"CFLR",4)) {
 984                         cmd_cflr(&cmdbuf[5]);
 985                         }
 986
 987                 else if (!strncasecmp(cmdbuf,"KFLR",4)) {
 988                         cmd_kflr(&cmdbuf[5]);
 989                         }
 990
 991                 else if (!strncasecmp(cmdbuf,"EFLR",4)) {
 992                         cmd_eflr(&cmdbuf[5]);
 993                         }
 994
 995                 else if (!strncasecmp(cmdbuf,"IDEN",4)) {
 996                         cmd_iden(&cmdbuf[5]);
 997                         }
 998
 999                 else if (!strncasecmp(cmdbuf,"IPGM",4)) {
1000                         cmd_ipgm(&cmdbuf[5]);
1001                         }
1002
1003                 else if (!strncasecmp(cmdbuf,"EBIO",4)) {
1004                         cmd_ebio();
1005                         }
1006
1007                 else if (!strncasecmp(cmdbuf,"RBIO",4)) {
1008                         cmd_rbio(&cmdbuf[5]);
1009                         }
1010
1011                 else if (!strncasecmp(cmdbuf,"LBIO",4)) {
1012                         cmd_lbio();
1013                         }
1014
1015                 else if (!strncasecmp(cmdbuf,"STEL",4)) {
1016                         cmd_stel(&cmdbuf[5]);
1017                         }
1018
1019                 else if (!strncasecmp(cmdbuf,"TERM",4)) {
1020                         cmd_term(&cmdbuf[5]);
1021                         }
1022
1023                 else if (!strncasecmp(cmdbuf,"DOWN",4)) {
1024                         cmd_down();
1025                         }
1026
1027                 else if (!strncasecmp(cmdbuf,"SCDN",4)) {
1028                         cmd_scdn(&cmdbuf[5]);
1029                         }
1030
1031                 else if (!strncasecmp(cmdbuf, "NSET", 4)) {
1032                         cmd_nset(&cmdbuf[5]);
1033                         }
1034
1035                 else if (!strncasecmp(cmdbuf, "UIMG", 4)) {
1036                         cmd_uimg(&cmdbuf[5]);
1037                         }
1038
1039                 else if (!strncasecmp(cmdbuf, "UCHG", 4)) {
1040                         cmd_uchg(&cmdbuf[5]);
1041                         }
1042
1043                 else if (!strncasecmp(cmdbuf, "TIME", 4)) {
1044                         cmd_time();
1045                         }
1046
1047                 else if (!strncasecmp(cmdbuf, "HCHG", 4)) {
1048                         cmd_hchg(&cmdbuf[5]);
1049                         }
1050
1051                 else if (!strncasecmp(cmdbuf, "RCHG", 4)) {
1052                         cmd_rchg(&cmdbuf[5]);
1053                         }
1054
1055                 else if (!strncasecmp(cmdbuf, "AGUP", 4)) {
1056                         cmd_agup(&cmdbuf[5]);
1057                         }
1058
1059                 else if (!strncasecmp(cmdbuf, "ASUP", 4)) {
1060                         cmd_asup(&cmdbuf[5]);
1061                         }
1062
1063                 else if (!strncasecmp(cmdbuf, "GPEX", 4)) {
1064                         cmd_gpex(&cmdbuf[5]);
1065                         }
1066
1067                 else if (!strncasecmp(cmdbuf, "SPEX", 4)) {
1068                         cmd_spex(&cmdbuf[5]);
1069                         }
1070
1071                 else if (!strncasecmp(cmdbuf, "CONF", 4)) {
1072                         cmd_conf(&cmdbuf[5]);
1073                         }
1074
1075                 else if (!DLoader_Exec_Cmd(cmdbuf))
1076                         {
1077                            cprintf("%d Unrecognized or unsupported command.\n",
1078                                     ERROR);
1079                         }
1080
1081                 } while(strncasecmp(cmdbuf, "QUIT", 4));
1082
1083         cleanup(EXIT_NORMAL);
1084         return(NULL);
1085         }