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 <pthread.h>
  11 #include <syslog.h>
  12 #include "citadel.h"
  13 #include "server.h"
  14 #include "proto.h"
  15
  16 struct config config;
  17
  18 struct CitContext *ContextList = NULL;
  19 int ScheduledShutdown = 0;
  20
  21
  22 /*
  23  * record an entry in the call log
  24  */
  25 void rec_log(unsigned int lrtype, char *name)
  26 {
  27         struct calllog record;
  28         int file,file2,a,b;
  29
  30
  31         time(&record.CLtime);
  32         record.CLflags = lrtype;
  33         strncpy(record.CLfullname,name,29);
  34
  35         begin_critical_section(S_CALLLOG);
  36         file=open("calllog.pos",O_RDWR);
  37
  38         read(file,&a,sizeof(int));
  39         b=a; ++a; if (a>=CALLLOG) a=0;
  40         lseek(file,0L,0);
  41         write(file,&a,sizeof(int));
  42
  43         file2=open("calllog",O_RDWR);
  44         lseek(file2,(long)(b*sizeof(struct calllog)),0);
  45         write(file2,(char *)&record,sizeof(struct calllog));
  46         close(file2);
  47
  48         close(file);
  49         end_critical_section(S_CALLLOG);
  50         }
  51
  52 /*
  53  * Cleanup routine to be called when the server is shutting down.
  54  */
  55 void master_cleanup(void) {
  56
  57         /* Cancel all running sessions */
  58         lprintf(7, "Cancelling running sessions...\n");
  59         while (ContextList != NULL) {
  60                 kill_session(ContextList->cs_pid);
  61                 }
  62
  63         /* Do system-dependent stuff */
  64         sysdep_master_cleanup();
  65
  66         /* Now go away. */
  67         hook_cleanup();
  68         lprintf(3, "citserver: exiting.\n");
  69         exit(0);
  70         }
  71
  72
  73 /*
  74  * Gracefully terminate the session and thread.
  75  * (This is called as a cleanup handler by the thread library.)
  76  */
  77 void cleanup_stuff()
  78 {
  79         struct ExpressMessage *emptr;
  80
  81         lprintf(9, "cleanup_stuff() called\n");
  82
  83         lprintf(7, "Calling logout(%d)\n", CC->cs_pid);
  84         logout(CC);
  85
  86         rec_log(CL_TERMINATE,CC->curr_user);
  87         unlink(CC->temp);
  88         lprintf(3, "citserver[%3d]: ended.\n",CC->cs_pid);
  89         hook_end_session(CC->cs_pid);
  90         syslog(LOG_NOTICE,"session %d ended", CC->cs_pid);
  91
  92         /* Deallocate any unsent express messages */
  93         begin_critical_section(S_SESSION_TABLE);
  94         while (CC->FirstExpressMessage != NULL) {
  95                 emptr = CC->FirstExpressMessage;
  96                 CC->FirstExpressMessage = CC->FirstExpressMessage->next;
  97                 free(emptr);
  98                 }
  99         end_critical_section(S_SESSION_TABLE);
 100
 101         /* Now get rid of the session and context */
 102         lprintf(7, "cleanup_stuff() is calling RemoveContext(%d)\n", CC->cs_pid);
 103         RemoveContext(CC);
 104
 105         /* While we still have an extra thread with no user attached to it,
 106          * take the opportunity to do some housekeeping before exiting.
 107          */
 108         do_housekeeping();
 109         }
 110
 111
 112 /*
 113  * set_wtmpsupp()  -  alter the session listing
 114  */
 115 void set_wtmpsupp(char *newtext)
 116 {
 117         strncpy(CC->cs_room,newtext,19);
 118         CC->cs_room[19] = 0;
 119         time(&CC->cs_lastupdt);
 120         hook_room_name(CC->cs_pid, CC->cs_room);
 121         }
 122
 123
 124 /*
 125  * cmd_info()  -  tell the client about this server
 126  */
 127 void cmd_info(void) {
 128         cprintf("%d Server info:\n",LISTING_FOLLOWS);
 129         cprintf("%d\n",CC->cs_pid);
 130         cprintf("%s\n",config.c_nodename);
 131         cprintf("%s\n",config.c_humannode);
 132         cprintf("%s\n",config.c_fqdn);
 133         cprintf("%s\n",CITADEL);
 134         cprintf("%d\n",REV_LEVEL);
 135         cprintf("%s\n",config.c_bbs_city);
 136         cprintf("%s\n",config.c_sysadm);
 137         cprintf("%d\n",SERVER_TYPE);
 138         cprintf("%s\n",config.c_moreprompt);
 139         cprintf("1\n"); /* 1 = yes, this system supports floors */
 140         cprintf("000\n");
 141         }
 142
 143 void cmd_rchg(char *newroomname)
 144 {
 145    if ((newroomname) && (newroomname[0]))
 146    {
 147       bzero(CC->fake_roomname, 20);
 148       strncpy(CC->fake_roomname, newroomname, 19);
 149    }
 150    else
 151       CC->fake_roomname[0] = '\0';
 152    cprintf("%d\n",OK);
 153 }
 154
 155 void cmd_hchg(char *newhostname)
 156 {
 157    if ((newhostname) && (newhostname[0]))
 158    {
 159       bzero(CC->fake_hostname, 25);
 160       strncpy(CC->fake_hostname, newhostname, 24);
 161    }
 162    else
 163       CC->fake_hostname[0] = '\0';
 164    cprintf("%d\n",OK);
 165 }
 166
 167 void cmd_uchg(char *newusername)
 168 {
 169    if (CC->usersupp.axlevel < 6)
 170    {
 171       cprintf("%d You must be an Aide to use UCHG.\n",
 172                 ERROR+HIGHER_ACCESS_REQUIRED);
 173       return;
 174    }
 175    if ((newusername) && (newusername[0]))
 176    {
 177       CC->cs_flags &= ~CS_STEALTH;
 178       bzero(CC->fake_username, 32);
 179       if (struncmp(newusername, CC->curr_user, strlen(CC->curr_user)))
 180          strncpy(CC->fake_username, newusername, 31);
 181    }
 182    else
 183    {
 184       CC->fake_username[0] = '\0';
 185       CC->cs_flags |= CS_STEALTH;
 186    }
 187    cprintf("%d\n",OK);
 188 }
 189
 190 void cmd_time()
 191 {
 192    time_t tv;
 193
 194    tv = time(NULL);
 195
 196    cprintf("%d|%ld\n", OK, tv);
 197 }
 198
 199 /*
 200  * check a hostname against the public_clients file
 201  */
 202 int is_public_client(char *where)
 203 {
 204         char buf[256];
 205         FILE *fp;
 206
 207         if (!strucmp(where,"localhost")) return(1);
 208         if (!strucmp(where,config.c_fqdn)) return(1);
 209
 210         fp = fopen("public_clients","r");
 211         if (fp == NULL) return(0);
 212
 213         while (fgets(buf,256,fp)!=NULL) {
 214                 while (isspace((buf[strlen(buf)-1])))
 215                         buf[strlen(buf)-1] = 0;
 216                 if (!strucmp(buf,where)) {
 217                         fclose(fp);
 218                         return(1);
 219                         }
 220                 }
 221
 222         fclose(fp);
 223         return(0);
 224         }
 225
 226
 227 /*
 228  * the client is identifying itself to the server
 229  */
 230 void cmd_iden(char *argbuf)
 231 {
 232         int dev_code;
 233         int cli_code;
 234         int rev_level;
 235         char desc[256];
 236         char from_host[256];
 237
 238         if (num_parms(argbuf)<4) {
 239                 cprintf("%d usage error\n",ERROR);
 240                 return;
 241                 }
 242
 243         dev_code = extract_int(argbuf,0);
 244         cli_code = extract_int(argbuf,1);
 245         rev_level = extract_int(argbuf,2);
 246         extract(desc,argbuf,3);
 247
 248         strcpy(from_host,config.c_fqdn);
 249         if (num_parms(argbuf)>=5) extract(from_host,argbuf,4);
 250
 251         CC->cs_clientdev = dev_code;
 252         CC->cs_clienttyp = cli_code;
 253         CC->cs_clientver = rev_level;
 254         strncpy(CC->cs_clientname,desc,31);
 255         CC->cs_clientname[31] = 0;
 256
 257         if ((strlen(from_host)>0) &&
 258            (is_public_client(CC->cs_host))) {
 259                 strncpy(CC->cs_host,from_host,24);
 260                 CC->cs_host[24] = 0;
 261                 }
 262         set_wtmpsupp(CC->quickroom.QRname);
 263
 264         syslog(LOG_NOTICE,"client %d/%d/%01d.%02d (%s)\n",
 265                 dev_code,
 266                 cli_code,
 267                 (rev_level / 100),
 268                 (rev_level % 100),
 269                 desc);
 270                 cprintf("%d Ok\n",OK);
 271         }
 272
 273
 274 /*
 275  * enter or exit "stealth mode"
 276  */
 277 void cmd_stel(char *cmdbuf)
 278 {
 279         int requested_mode;
 280
 281         requested_mode = extract_int(cmdbuf,0);
 282         if (requested_mode !=0) requested_mode = 1;
 283
 284         if (!CC->logged_in) {
 285                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 286                 return;
 287                 }
 288
 289         if (CC->usersupp.axlevel < 6) {
 290                 cprintf("%d You must be an Aide to use stealth mode.\n",
 291                         ERROR+HIGHER_ACCESS_REQUIRED);
 292                 return;
 293                 }
 294
 295         if (CC->cs_flags & CS_STEALTH) {
 296                 if (requested_mode == 0)
 297                         CC->cs_flags = CC->cs_flags-CS_STEALTH;
 298                 }
 299         else {
 300                 if (requested_mode == 1)
 301                         CC->cs_flags = CC->cs_flags|CS_STEALTH;
 302                 }
 303
 304         set_wtmpsupp(CC->quickroom.QRname);
 305         cprintf("%d Ok\n",OK);
 306         }
 307
 308
 309
 310
 311 /*
 312  * display system messages or help
 313  */
 314 void cmd_mesg(char *mname)
 315 {
 316         FILE *mfp;
 317         char targ[256];
 318         char buf[256];
 319         char *dirs[2];
 320
 321         extract(buf,mname,0);
 322
 323
 324         dirs[0]=malloc(64);
 325         dirs[1]=malloc(64);
 326         strcpy(dirs[0],"messages");
 327         strcpy(dirs[1],"help");
 328         mesg_locate(targ,buf,2,dirs);
 329         free(dirs[0]);
 330         free(dirs[1]);
 331
 332
 333         if (strlen(targ)==0) {
 334                 cprintf("%d '%s' not found.\n",ERROR,mname);
 335                 return;
 336                 }
 337
 338         mfp = fopen(targ,"r");
 339         if (mfp==NULL) {
 340                 cprintf("%d Cannot open '%s': %s\n",
 341                         ERROR,targ,strerror(errno));
 342                 return;
 343                 }
 344         cprintf("%d %s\n",LISTING_FOLLOWS,buf);
 345
 346         while (fgets(buf,255,mfp)!=NULL) {
 347                 buf[strlen(buf)-1] = 0;
 348                 do_help_subst(buf);
 349                 cprintf("%s\n",buf);
 350                 }
 351
 352         fclose(mfp);
 353         cprintf("000\n");
 354         }
 355
 356
 357 /*
 358  * enter system messages or help
 359  */
 360 void cmd_emsg(char *mname)
 361 {
 362         FILE *mfp;
 363         char targ[256];
 364         char buf[256];
 365         char *dirs[2];
 366         int a;
 367
 368         if (CC->usersupp.axlevel < 6) {
 369                 cprintf("%d You must be an Aide to edit system messages.\n",
 370                         ERROR+HIGHER_ACCESS_REQUIRED);
 371                 return;
 372                 }
 373
 374         extract(buf,mname,0);
 375         for (a=0; a<strlen(buf); ++a) {         /* security measure */
 376                 if (buf[a] == '/') buf[a] = '.';
 377                 }
 378
 379         dirs[0]=malloc(64);
 380         dirs[1]=malloc(64);
 381         strcpy(dirs[0],"messages");
 382         strcpy(dirs[1],"help");
 383         mesg_locate(targ,buf,2,dirs);
 384         free(dirs[0]);
 385         free(dirs[1]);
 386
 387         if (strlen(targ)==0) {
 388                 sprintf(targ, "./help/%s", buf);
 389                 }
 390
 391         mfp = fopen(targ,"w");
 392         if (mfp==NULL) {
 393                 cprintf("%d Cannot open '%s': %s\n",
 394                         ERROR,targ,strerror(errno));
 395                 return;
 396                 }
 397         cprintf("%d %s\n", SEND_LISTING, targ);
 398
 399         while (client_gets(buf), strcmp(buf, "000")) {
 400                 fprintf(mfp, "%s\n", buf);
 401                 }
 402
 403         fclose(mfp);
 404         }
 405
 406
 407 /*
 408  * who's online
 409  */
 410 void cmd_rwho(void) {
 411         struct CitContext *cptr;
 412         int spoofed = 0;
 413         int aide;
 414         char un[40], room[40], host[40], flags[5];
 415
 416         aide = CC->usersupp.axlevel >= 6;
 417         cprintf("%d\n",LISTING_FOLLOWS);
 418
 419         for (cptr = ContextList; cptr != NULL; cptr = cptr->next)
 420         {
 421                 flags[0] = '\0';
 422                 spoofed = 0;
 423
 424                 if (cptr->cs_flags & CS_POSTING)
 425                    strcat(flags, "*");
 426                 else
 427                    strcat(flags, ".");
 428
 429                 if (cptr->fake_username[0])
 430                 {
 431                    strcpy(un, cptr->fake_username);
 432                    spoofed = 1;
 433                 }
 434                 else
 435                    strcpy(un, cptr->curr_user);
 436
 437                 if (cptr->fake_hostname[0])
 438                 {
 439                    strcpy(host, cptr->fake_hostname);
 440                    spoofed = 1;
 441                 }
 442                 else
 443                    strcpy(host, cptr->cs_host);
 444
 445                 if (cptr->fake_roomname[0])
 446                 {
 447                    strcpy(room, cptr->fake_roomname);
 448                    spoofed = 1;
 449                 }
 450                 else
 451                    strcpy(room, cptr->cs_room);
 452
 453
 454                 if ((aide) && (spoofed))
 455                    strcat(flags, "+");
 456
 457                 if ((cptr->cs_flags & CS_STEALTH) && (aide))
 458                    strcat(flags, "-");
 459
 460                 if (((cptr->cs_flags&CS_STEALTH)==0) || (aide))
 461                 {
 462                         cprintf("%d|%s|%s|%s|%s|%ld|%s|%s\n",
 463                                 cptr->cs_pid, un, room,
 464                                 host, cptr->cs_clientname,
 465                                 (long)(cptr->lastidle),
 466                                 cptr->lastcmdname, flags);
 467                 }
 468                 if ((spoofed) && (aide))
 469                 {
 470                         cprintf("%d|%s|%s|%s|%s|%ld|%s|%s\n",
 471                                 cptr->cs_pid, cptr->curr_user, cptr->cs_room,
 472                                 cptr->cs_host, cptr->cs_clientname,
 473                                 (long)(cptr->lastidle),
 474                                 cptr->lastcmdname, flags);
 475
 476                 }
 477         }
 478         cprintf("000\n");
 479         }
 480
 481
 482 /*
 483  * Terminate another running session
 484  */
 485 void cmd_term(char *cmdbuf)
 486 {
 487         int session_num;
 488         struct CitContext *ccptr;
 489
 490         if (!CC->logged_in) {
 491                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 492                 return;
 493                 }
 494
 495         if (CC->usersupp.axlevel < 6) {
 496                 cprintf("%d You must be an Aide to terminate sessions.\n",
 497                         ERROR+HIGHER_ACCESS_REQUIRED);
 498                 return;
 499                 }
 500
 501         session_num = extract_int(cmdbuf, 0);
 502         if (session_num == CC->cs_pid) {
 503                 cprintf("%d You can't kill your own session.\n", ERROR);
 504                 return;
 505                 }
 506
 507         for (ccptr = ContextList; ccptr != NULL; ccptr = ccptr->next) {
 508                 if (session_num == ccptr->cs_pid) {
 509                         kill_session(ccptr->cs_pid);
 510                         cprintf("%d Session terminated.\n", OK);
 511                         return;
 512                         }
 513                 }
 514
 515         cprintf("%d No such session.\n", ERROR);
 516         }
 517
 518
 519
 520
 521
 522 /*
 523  * get the paginator prompt
 524  */
 525 void cmd_more(void) {
 526         cprintf("%d %s\n",OK,config.c_moreprompt);
 527         }
 528
 529 /*
 530  * echo
 531  */
 532 void cmd_echo(char *etext)
 533 {
 534         cprintf("%d %s\n",OK,etext);
 535         }
 536
 537
 538
 539 /*
 540  * identify as internal program
 541  */
 542 void cmd_ipgm(char *argbuf)
 543 {
 544         int secret;
 545
 546         secret = extract_int(argbuf, 0);
 547         if (secret == config.c_ipgm_secret) {
 548                 CC->internal_pgm = 1;
 549                 strcpy(CC->curr_user, "<internal program>");
 550                 CC->cs_flags = CC->cs_flags|CS_STEALTH;
 551                 cprintf("%d Authenticated as an internal program.\n",OK);
 552                 }
 553         else {
 554                 cprintf("%d Authentication failed.\n",ERROR);
 555                 }
 556         }
 557
 558
 559 /*
 560  * Shut down the server
 561  */
 562 void cmd_down(void) {
 563         if (!CC->logged_in) {
 564                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 565                 return;
 566                 }
 567
 568         if (CC->usersupp.axlevel < 6) {
 569                 cprintf("%d You must be an Aide to shut down the server.\n",
 570                         ERROR+HIGHER_ACCESS_REQUIRED);
 571                 return;
 572                 }
 573
 574         cprintf("%d Shutting down server.  Goodbye.\n", OK);
 575         master_cleanup();
 576         }
 577
 578 /*
 579  * Shut down the server
 580  */
 581 void cmd_scdn(char *argbuf)
 582 {
 583         int new_state;
 584
 585         if (!CC->logged_in) {
 586                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 587                 return;
 588                 }
 589
 590         if (CC->usersupp.axlevel < 6) {
 591                 cprintf("%d You must be an Aide to schedule a shutdown.\n",
 592                         ERROR+HIGHER_ACCESS_REQUIRED);
 593                 return;
 594                 }
 595
 596         new_state = extract_int(argbuf, 0);
 597         if ((new_state == 0) || (new_state == 1)) {
 598                 ScheduledShutdown = new_state;
 599                 }
 600         cprintf("%d %d\n", OK, ScheduledShutdown);
 601         }
 602
 603 /*
 604  * main context loop
 605  */
 606 void *context_loop(struct CitContext *con)
 607 {
 608         char cmdbuf[256];
 609         int session_num;
 610
 611         /*
 612          * Wedge our way into the context table.
 613          */
 614         InitMyContext(con);
 615
 616         /*
 617          * Initialize some variables specific to our context.
 618          */
 619         CC->curr_rm = (-1);
 620         CC->logged_in = 0;
 621         CC->internal_pgm = 0;
 622         CC->download_fp = NULL;
 623         CC->upload_fp = NULL;
 624         CC->cs_pid = con->client_socket;        /* not necessarily portable */
 625         CC->FirstExpressMessage = NULL;
 626         time(&CC->lastcmd);
 627         time(&CC->lastidle);
 628         strcpy(CC->lastcmdname, "    ");
 629         strcpy(CC->cs_clientname, "(unknown)");
 630         strcpy(CC->curr_user,"");
 631         strcpy(CC->net_node,"");
 632         sprintf(CC->temp,"/tmp/CitServer.%d.%d", getpid(), CC->cs_pid);
 633         strcpy(CC->cs_room, "");
 634         strcpy(CC->cs_host, config.c_fqdn);
 635         locate_host(CC->cs_host);
 636         CC->cs_flags = 0;
 637         CC->upload_type = UPL_FILE;
 638         CC->dl_is_net = 0;
 639
 640         session_num = session_count();
 641         CC->nologin = 0;
 642         if ((config.c_maxsessions > 0)&&(session_num >= config.c_maxsessions))
 643                 CC->nologin = 1;
 644
 645         if (CC->nologin==1) {
 646            cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 647                 ERROR+MAX_SESSIONS_EXCEEDED,
 648                 config.c_nodename,config.c_maxsessions);
 649                 }
 650         else {
 651            cprintf("%d %s Citadel/UX server ready.\n",OK,config.c_nodename);
 652                 }
 653
 654         lprintf(3, "citserver[%3d]: started.\n", CC->cs_pid);
 655         hook_start_session(CC->cs_pid);
 656
 657         do {
 658                 time(&CC->lastcmd);
 659                 if (client_gets(cmdbuf) < 1) cleanup(EXIT_NULL);
 660                 lprintf(5, "citserver[%3d]: %s\n", CC->cs_pid, cmdbuf);
 661                 hook_command_received(CC->cs_pid, cmdbuf);
 662
 663                 /*
 664                  * Let other clients see the last command we executed, but
 665                  * exclude NOOP because that would be boring.
 666                  */
 667                 if (struncmp(cmdbuf, "NOOP", 4)) {
 668                         strcpy(CC->lastcmdname, "    ");
 669                         strncpy(CC->lastcmdname, cmdbuf, 4);
 670                         time(&CC->lastidle);
 671                         }
 672
 673                 if ((struncmp(cmdbuf, "ENT0", 4)) && (struncmp(cmdbuf, "MESG", 4)) && (struncmp(cmdbuf, "MSGS", 4)))
 674                 {
 675                    CC->cs_flags &= ~CS_POSTING;
 676                 }
 677
 678 /*
 679  * This loop recognizes all server commands.
 680  */
 681
 682                 if (!struncmp(cmdbuf,"NOOP",4)) {
 683                         cprintf("%d%cok\n",OK,check_express());
 684                         }
 685
 686                 else if (!struncmp(cmdbuf,"QUIT",4)) {
 687                         cprintf("%d Goodbye.\n",OK);
 688                         }
 689
 690                 else if (!struncmp(cmdbuf,"LOUT",4)) {
 691                         if (CC->logged_in) logout(CC);
 692                         cprintf("%d logged out.\n",OK);
 693                         }
 694
 695                 else if (!struncmp(cmdbuf,"USER",4)) {
 696                         cmd_user(&cmdbuf[5]);
 697                         }
 698
 699                 else if (!struncmp(cmdbuf,"PASS",4)) {
 700                         cmd_pass(&cmdbuf[5]);
 701                         }
 702
 703                 else if (!struncmp(cmdbuf,"NEWU",4)) {
 704                         cmd_newu(&cmdbuf[5]);
 705                         }
 706
 707                 else if (!struncmp(cmdbuf,"SETP",4)) {
 708                         cmd_setp(&cmdbuf[5]);
 709                         }
 710
 711                 else if (!struncmp(cmdbuf,"LRMS",4)) {
 712                         cmd_lrms(&cmdbuf[5]);
 713                         }
 714
 715                 else if (!struncmp(cmdbuf,"LKRA",4)) {
 716                         cmd_lkra(&cmdbuf[5]);
 717                         }
 718
 719                 else if (!struncmp(cmdbuf,"LKRN",4)) {
 720                         cmd_lkrn(&cmdbuf[5]);
 721                         }
 722
 723                 else if (!struncmp(cmdbuf,"LKRO",4)) {
 724                         cmd_lkro(&cmdbuf[5]);
 725                         }
 726
 727                 else if (!struncmp(cmdbuf,"LZRM",4)) {
 728                         cmd_lzrm(&cmdbuf[5]);
 729                         }
 730
 731                 else if (!struncmp(cmdbuf,"GETU",4)) {
 732                         cmd_getu();
 733                         }
 734
 735                 else if (!struncmp(cmdbuf,"SETU",4)) {
 736                         cmd_setu(&cmdbuf[5]);
 737                         }
 738
 739                 else if (!struncmp(cmdbuf,"GOTO",4)) {
 740                         cmd_goto(&cmdbuf[5]);
 741                         }
 742
 743                 else if (!struncmp(cmdbuf,"MSGS",4)) {
 744                         cmd_msgs(&cmdbuf[5]);
 745                         }
 746
 747                 else if (!struncmp(cmdbuf,"WHOK",4)) {
 748                         cmd_whok();
 749                         }
 750
 751                 else if (!struncmp(cmdbuf,"RDIR",4)) {
 752                         cmd_rdir();
 753                         }
 754
 755                 else if (!struncmp(cmdbuf,"MSG0",4)) {
 756                         cmd_msg0(&cmdbuf[5]);
 757                         }
 758
 759                 else if (!struncmp(cmdbuf,"MSG2",4)) {
 760                         cmd_msg2(&cmdbuf[5]);
 761                         }
 762
 763                 else if (!struncmp(cmdbuf,"MSG3",4)) {
 764                         cmd_msg3(&cmdbuf[5]);
 765                         }
 766
 767                 else if (!struncmp(cmdbuf,"INFO",4)) {
 768                         cmd_info();
 769                         }
 770
 771                 else if (!struncmp(cmdbuf,"SLRP",4)) {
 772                         cmd_slrp(&cmdbuf[5]);
 773                         }
 774
 775                 else if (!struncmp(cmdbuf,"INVT",4)) {
 776                         cmd_invt_kick(&cmdbuf[5],1);
 777                         }
 778
 779                 else if (!struncmp(cmdbuf,"KICK",4)) {
 780                         cmd_invt_kick(&cmdbuf[5],0);
 781                         }
 782
 783                 else if (!struncmp(cmdbuf,"GETR",4)) {
 784                         cmd_getr();
 785                         }
 786
 787                 else if (!struncmp(cmdbuf,"SETR",4)) {
 788                         cmd_setr(&cmdbuf[5]);
 789                         }
 790
 791                 else if (!struncmp(cmdbuf,"GETA",4)) {
 792                         cmd_geta();
 793                         }
 794
 795                 else if (!struncmp(cmdbuf,"SETA",4)) {
 796                         cmd_seta(&cmdbuf[5]);
 797                         }
 798
 799                 else if (!struncmp(cmdbuf,"ENT0",4)) {
 800                         cmd_ent0(&cmdbuf[5]);
 801                         }
 802
 803                 else if (!struncmp(cmdbuf,"ENT3",4)) {
 804                         cmd_ent3(&cmdbuf[5]);
 805                         }
 806
 807                 else if (!struncmp(cmdbuf,"RINF",4)) {
 808                         cmd_rinf();
 809                         }
 810
 811                 else if (!struncmp(cmdbuf,"DELE",4)) {
 812                         cmd_dele(&cmdbuf[5]);
 813                         }
 814
 815                 else if (!struncmp(cmdbuf,"KILL",4)) {
 816                         cmd_kill(&cmdbuf[5]);
 817                         }
 818
 819                 else if (!struncmp(cmdbuf,"CRE8",4)) {
 820                         cmd_cre8(&cmdbuf[5]);
 821                         }
 822
 823                 else if (!struncmp(cmdbuf,"MOVE",4)) {
 824                         cmd_move(&cmdbuf[5]);
 825                         }
 826
 827                 else if (!struncmp(cmdbuf,"FORG",4)) {
 828                         cmd_forg();
 829                         }
 830
 831                 else if (!struncmp(cmdbuf,"MESG",4)) {
 832                         cmd_mesg(&cmdbuf[5]);
 833                         }
 834
 835                 else if (!struncmp(cmdbuf,"EMSG",4)) {
 836                         cmd_emsg(&cmdbuf[5]);
 837                         }
 838
 839                 else if (!struncmp(cmdbuf,"GNUR",4)) {
 840                         cmd_gnur();
 841                         }
 842
 843                 else if (!struncmp(cmdbuf,"GREG",4)) {
 844                         cmd_greg(&cmdbuf[5]);
 845                         }
 846
 847                 else if (!struncmp(cmdbuf,"VALI",4)) {
 848                         cmd_vali(&cmdbuf[5]);
 849                         }
 850
 851                 else if (!struncmp(cmdbuf,"EINF",4)) {
 852                         cmd_einf(&cmdbuf[5]);
 853                         }
 854
 855                 else if (!struncmp(cmdbuf,"LIST",4)) {
 856                         cmd_list();
 857                         }
 858
 859                 else if (!struncmp(cmdbuf,"REGI",4)) {
 860                         cmd_regi();
 861                         }
 862
 863                 else if (!struncmp(cmdbuf,"CHEK",4)) {
 864                         cmd_chek();
 865                         }
 866
 867                 else if (!struncmp(cmdbuf,"DELF",4)) {
 868                         cmd_delf(&cmdbuf[5]);
 869                         }
 870
 871                 else if (!struncmp(cmdbuf,"MOVF",4)) {
 872                         cmd_movf(&cmdbuf[5]);
 873                         }
 874
 875                 else if (!struncmp(cmdbuf,"NETF",4)) {
 876                         cmd_netf(&cmdbuf[5]);
 877                         }
 878
 879                 else if (!struncmp(cmdbuf,"RWHO",4)) {
 880                         cmd_rwho();
 881                         }
 882
 883                 else if (!struncmp(cmdbuf,"OPEN",4)) {
 884                         cmd_open(&cmdbuf[5]);
 885                         }
 886
 887                 else if (!struncmp(cmdbuf,"CLOS",4)) {
 888                         cmd_clos();
 889                         }
 890
 891                 else if (!struncmp(cmdbuf,"UOPN",4)) {
 892                         cmd_uopn(&cmdbuf[5]);
 893                         }
 894
 895                 else if (!struncmp(cmdbuf,"UCLS",4)) {
 896                         cmd_ucls(&cmdbuf[5]);
 897                         }
 898
 899                 else if (!struncmp(cmdbuf,"READ",4)) {
 900                         cmd_read(&cmdbuf[5]);
 901                         }
 902
 903                 else if (!struncmp(cmdbuf,"WRIT",4)) {
 904                         cmd_writ(&cmdbuf[5]);
 905                         }
 906
 907                 else if (!struncmp(cmdbuf,"QUSR",4)) {
 908                         cmd_qusr(&cmdbuf[5]);
 909                         }
 910
 911                 else if (!struncmp(cmdbuf,"ECHO",4)) {
 912                         cmd_echo(&cmdbuf[5]);
 913                         }
 914
 915                 else if (!struncmp(cmdbuf,"OIMG",4)) {
 916                         cmd_oimg(&cmdbuf[5]);
 917                         }
 918
 919                 else if (!struncmp(cmdbuf,"MORE",4)) {
 920                         cmd_more();
 921                         }
 922
 923                 else if (!struncmp(cmdbuf,"NETP",4)) {
 924                         cmd_netp(&cmdbuf[5]);
 925                         }
 926
 927                 else if (!struncmp(cmdbuf,"NDOP",4)) {
 928                         cmd_ndop(&cmdbuf[5]);
 929                         }
 930
 931                 else if (!struncmp(cmdbuf,"NUOP",4)) {
 932                         cmd_nuop(&cmdbuf[5]);
 933                         }
 934
 935                 else if (!struncmp(cmdbuf,"LFLR",4)) {
 936                         cmd_lflr();
 937                         }
 938
 939                 else if (!struncmp(cmdbuf,"CFLR",4)) {
 940                         cmd_cflr(&cmdbuf[5]);
 941                         }
 942
 943                 else if (!struncmp(cmdbuf,"KFLR",4)) {
 944                         cmd_kflr(&cmdbuf[5]);
 945                         }
 946
 947                 else if (!struncmp(cmdbuf,"EFLR",4)) {
 948                         cmd_eflr(&cmdbuf[5]);
 949                         }
 950
 951                 else if (!struncmp(cmdbuf,"IDEN",4)) {
 952                         cmd_iden(&cmdbuf[5]);
 953                         }
 954
 955                 else if (!struncmp(cmdbuf,"IPGM",4)) {
 956                         cmd_ipgm(&cmdbuf[5]);
 957                         }
 958
 959                 else if (!struncmp(cmdbuf,"CHAT",4)) {
 960                         cmd_chat(&cmdbuf[5]);
 961                         }
 962
 963                 else if (!struncmp(cmdbuf,"PEXP",4)) {
 964                         cmd_pexp();
 965                         }
 966
 967                 else if (!struncmp(cmdbuf,"SEXP",4)) {
 968                         cmd_sexp(&cmdbuf[5]);
 969                         }
 970
 971                 else if (!struncmp(cmdbuf,"EBIO",4)) {
 972                         cmd_ebio();
 973                         }
 974
 975                 else if (!struncmp(cmdbuf,"RBIO",4)) {
 976                         cmd_rbio(&cmdbuf[5]);
 977                         }
 978
 979                 else if (!struncmp(cmdbuf,"LBIO",4)) {
 980                         cmd_lbio();
 981                         }
 982
 983                 else if (!struncmp(cmdbuf,"STEL",4)) {
 984                         cmd_stel(&cmdbuf[5]);
 985                         }
 986
 987                 else if (!struncmp(cmdbuf,"TERM",4)) {
 988                         cmd_term(&cmdbuf[5]);
 989                         }
 990
 991                 else if (!struncmp(cmdbuf,"DOWN",4)) {
 992                         cmd_down();
 993                         }
 994
 995                 else if (!struncmp(cmdbuf,"SCDN",4)) {
 996                         cmd_scdn(&cmdbuf[5]);
 997                         }
 998
 999                 else if (!struncmp(cmdbuf, "NSET", 4)) {
1000                         cmd_nset(&cmdbuf[5]);
1001                         }
1002
1003                 else if (!struncmp(cmdbuf, "UIMG", 4)) {
1004                         cmd_uimg(&cmdbuf[5]);
1005                         }
1006                 else if (!struncmp(cmdbuf, "UCHG", 4)) {
1007                         cmd_uchg(&cmdbuf[5]);
1008                         }
1009                 else if (!struncmp(cmdbuf, "TIME", 4)) {
1010                         cmd_time(&cmdbuf[5]);
1011                         }
1012                 else if (!struncmp(cmdbuf, "HCHG", 4)) {
1013                         cmd_hchg(&cmdbuf[5]);
1014                         }
1015                 else if (!struncmp(cmdbuf, "RCHG", 4)) {
1016                         cmd_rchg(&cmdbuf[5]);
1017                         }
1018                 else {
1019                         cprintf("%d Unrecognized or unsupported command.\n",
1020                                 ERROR);
1021                         }
1022
1023                 } while(struncmp(cmdbuf,"QUIT",4));
1024
1025         cleanup(EXIT_NORMAL);
1026         return(NULL);
1027         }