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