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