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 /*
  54  * Various things that need to be initialized at startup
  55  */
  56 void master_startup() {
  57         lprintf(7, "Opening databases\n");
  58         open_databases();
  59
  60         lprintf(7, "Checking floor reference counts\n");
  61         check_ref_counts();
  62         }
  63
  64 /*
  65  * Cleanup routine to be called when the server is shutting down.
  66  */
  67 void master_cleanup() {
  68
  69         /* Cancel all running sessions */
  70         lprintf(7, "Cancelling running sessions...\n");
  71         while (ContextList != NULL) {
  72                 kill_session(ContextList->cs_pid);
  73                 }
  74
  75         /* Close databases */
  76         lprintf(7, "Closing databases\n");
  77         close_databases();
  78
  79         /* Do system-dependent stuff */
  80         sysdep_master_cleanup();
  81
  82         /* Now go away. */
  83         hook_cleanup();
  84         lprintf(3, "citserver: exiting.\n");
  85         exit(0);
  86         }
  87
  88
  89 /*
  90  * Gracefully terminate the session and thread.
  91  * (This is called as a cleanup handler by the thread library.)
  92  */
  93 void cleanup_stuff()
  94 {
  95         struct ExpressMessage *emptr;
  96
  97         lprintf(9, "cleanup_stuff() called\n");
  98
  99         lprintf(7, "Calling logout(%d)\n", CC->cs_pid);
 100         logout(CC);
 101
 102         rec_log(CL_TERMINATE,CC->curr_user);
 103         unlink(CC->temp);
 104         lprintf(3, "citserver[%3d]: ended.\n",CC->cs_pid);
 105         hook_end_session(CC->cs_pid);
 106         syslog(LOG_NOTICE,"session %d ended", CC->cs_pid);
 107
 108         /* Deallocate any unsent express messages */
 109         begin_critical_section(S_SESSION_TABLE);
 110         while (CC->FirstExpressMessage != NULL) {
 111                 emptr = CC->FirstExpressMessage;
 112                 CC->FirstExpressMessage = CC->FirstExpressMessage->next;
 113                 free(emptr);
 114                 }
 115         end_critical_section(S_SESSION_TABLE);
 116
 117         /* Now get rid of the session and context */
 118         lprintf(7, "cleanup_stuff() is calling RemoveContext(%d)\n", CC->cs_pid);
 119         RemoveContext(CC);
 120
 121         /* While we still have an extra thread with no user attached to it,
 122          * take the opportunity to do some housekeeping before exiting.
 123          */
 124         do_housekeeping();
 125         }
 126
 127
 128 /*
 129  * set_wtmpsupp()  -  alter the session listing
 130  */
 131 void set_wtmpsupp(char *newtext)
 132 {
 133         strncpy(CC->cs_room,newtext,19);
 134         CC->cs_room[19] = 0;
 135         time(&CC->cs_lastupdt);
 136         hook_room_name(CC->cs_pid, CC->cs_room);
 137         }
 138
 139
 140 /*
 141  * cmd_info()  -  tell the client about this server
 142  */
 143 void cmd_info(void) {
 144         cprintf("%d Server info:\n",LISTING_FOLLOWS);
 145         cprintf("%d\n",CC->cs_pid);
 146         cprintf("%s\n",config.c_nodename);
 147         cprintf("%s\n",config.c_humannode);
 148         cprintf("%s\n",config.c_fqdn);
 149         cprintf("%s\n",CITADEL);
 150         cprintf("%d\n",REV_LEVEL);
 151         cprintf("%s\n",config.c_bbs_city);
 152         cprintf("%s\n",config.c_sysadm);
 153         cprintf("%d\n",SERVER_TYPE);
 154         cprintf("%s\n",config.c_moreprompt);
 155         cprintf("1\n"); /* 1 = yes, this system supports floors */
 156         cprintf("000\n");
 157         }
 158
 159 void cmd_rchg(char *newroomname)
 160 {
 161    if ((newroomname) && (newroomname[0]))
 162    {
 163       bzero(CC->fake_roomname, 20);
 164       strncpy(CC->fake_roomname, newroomname, 19);
 165    }
 166    else
 167       CC->fake_roomname[0] = '\0';
 168    cprintf("%d\n",OK);
 169 }
 170
 171 void cmd_hchg(char *newhostname)
 172 {
 173    if ((newhostname) && (newhostname[0]))
 174    {
 175       bzero(CC->fake_hostname, 25);
 176       strncpy(CC->fake_hostname, newhostname, 24);
 177    }
 178    else
 179       CC->fake_hostname[0] = '\0';
 180    cprintf("%d\n",OK);
 181 }
 182
 183 void cmd_uchg(char *newusername)
 184 {
 185    if (CC->usersupp.axlevel < 6)
 186    {
 187       cprintf("%d You must be an Aide to use UCHG.\n",
 188                 ERROR+HIGHER_ACCESS_REQUIRED);
 189       return;
 190    }
 191    if ((newusername) && (newusername[0]))
 192    {
 193       CC->cs_flags &= ~CS_STEALTH;
 194       bzero(CC->fake_username, 32);
 195       if (struncmp(newusername, CC->curr_user, strlen(CC->curr_user)))
 196          strncpy(CC->fake_username, newusername, 31);
 197    }
 198    else
 199    {
 200       CC->fake_username[0] = '\0';
 201       CC->cs_flags |= CS_STEALTH;
 202    }
 203    cprintf("%d\n",OK);
 204 }
 205
 206 void cmd_time()
 207 {
 208    time_t tv;
 209
 210    tv = time(NULL);
 211
 212    cprintf("%d|%ld\n", OK, tv);
 213 }
 214
 215 /*
 216  * check a hostname against the public_clients file
 217  */
 218 int is_public_client(char *where)
 219 {
 220         char buf[256];
 221         FILE *fp;
 222
 223         if (!strucmp(where,"localhost")) return(1);
 224         if (!strucmp(where,config.c_fqdn)) return(1);
 225
 226         fp = fopen("public_clients","r");
 227         if (fp == NULL) return(0);
 228
 229         while (fgets(buf,256,fp)!=NULL) {
 230                 while (isspace((buf[strlen(buf)-1])))
 231                         buf[strlen(buf)-1] = 0;
 232                 if (!strucmp(buf,where)) {
 233                         fclose(fp);
 234                         return(1);
 235                         }
 236                 }
 237
 238         fclose(fp);
 239         return(0);
 240         }
 241
 242
 243 /*
 244  * the client is identifying itself to the server
 245  */
 246 void cmd_iden(char *argbuf)
 247 {
 248         int dev_code;
 249         int cli_code;
 250         int rev_level;
 251         char desc[256];
 252         char from_host[256];
 253
 254         if (num_parms(argbuf)<4) {
 255                 cprintf("%d usage error\n",ERROR);
 256                 return;
 257                 }
 258
 259         dev_code = extract_int(argbuf,0);
 260         cli_code = extract_int(argbuf,1);
 261         rev_level = extract_int(argbuf,2);
 262         extract(desc,argbuf,3);
 263
 264         strcpy(from_host,config.c_fqdn);
 265         if (num_parms(argbuf)>=5) extract(from_host,argbuf,4);
 266
 267         CC->cs_clientdev = dev_code;
 268         CC->cs_clienttyp = cli_code;
 269         CC->cs_clientver = rev_level;
 270         strncpy(CC->cs_clientname,desc,31);
 271         CC->cs_clientname[31] = 0;
 272
 273         if ((strlen(from_host)>0) &&
 274            (is_public_client(CC->cs_host))) {
 275                 strncpy(CC->cs_host,from_host,24);
 276                 CC->cs_host[24] = 0;
 277                 }
 278         set_wtmpsupp(CC->quickroom.QRname);
 279
 280         syslog(LOG_NOTICE,"client %d/%d/%01d.%02d (%s)\n",
 281                 dev_code,
 282                 cli_code,
 283                 (rev_level / 100),
 284                 (rev_level % 100),
 285                 desc);
 286                 cprintf("%d Ok\n",OK);
 287         }
 288
 289
 290 /*
 291  * enter or exit "stealth mode"
 292  */
 293 void cmd_stel(char *cmdbuf)
 294 {
 295         int requested_mode;
 296
 297         requested_mode = extract_int(cmdbuf,0);
 298         if (requested_mode !=0) requested_mode = 1;
 299
 300         if (!CC->logged_in) {
 301                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 302                 return;
 303                 }
 304
 305         if (CC->usersupp.axlevel < 6) {
 306                 cprintf("%d You must be an Aide to use stealth mode.\n",
 307                         ERROR+HIGHER_ACCESS_REQUIRED);
 308                 return;
 309                 }
 310
 311         if (CC->cs_flags & CS_STEALTH) {
 312                 if (requested_mode == 0)
 313                         CC->cs_flags = CC->cs_flags-CS_STEALTH;
 314                 }
 315         else {
 316                 if (requested_mode == 1)
 317                         CC->cs_flags = CC->cs_flags|CS_STEALTH;
 318                 }
 319
 320         set_wtmpsupp(CC->quickroom.QRname);
 321         cprintf("%d Ok\n",OK);
 322         }
 323
 324
 325
 326
 327 /*
 328  * display system messages or help
 329  */
 330 void cmd_mesg(char *mname)
 331 {
 332         FILE *mfp;
 333         char targ[256];
 334         char buf[256];
 335         char *dirs[2];
 336
 337         extract(buf,mname,0);
 338
 339
 340         dirs[0]=malloc(64);
 341         dirs[1]=malloc(64);
 342         strcpy(dirs[0],"messages");
 343         strcpy(dirs[1],"help");
 344         mesg_locate(targ,buf,2,dirs);
 345         free(dirs[0]);
 346         free(dirs[1]);
 347
 348
 349         if (strlen(targ)==0) {
 350                 cprintf("%d '%s' not found.\n",ERROR,mname);
 351                 return;
 352                 }
 353
 354         mfp = fopen(targ,"r");
 355         if (mfp==NULL) {
 356                 cprintf("%d Cannot open '%s': %s\n",
 357                         ERROR,targ,strerror(errno));
 358                 return;
 359                 }
 360         cprintf("%d %s\n",LISTING_FOLLOWS,buf);
 361
 362         while (fgets(buf,255,mfp)!=NULL) {
 363                 buf[strlen(buf)-1] = 0;
 364                 do_help_subst(buf);
 365                 cprintf("%s\n",buf);
 366                 }
 367
 368         fclose(mfp);
 369         cprintf("000\n");
 370         }
 371
 372
 373 /*
 374  * enter system messages or help
 375  */
 376 void cmd_emsg(char *mname)
 377 {
 378         FILE *mfp;
 379         char targ[256];
 380         char buf[256];
 381         char *dirs[2];
 382         int a;
 383
 384         if (CC->usersupp.axlevel < 6) {
 385                 cprintf("%d You must be an Aide to edit system messages.\n",
 386                         ERROR+HIGHER_ACCESS_REQUIRED);
 387                 return;
 388                 }
 389
 390         extract(buf,mname,0);
 391         for (a=0; a<strlen(buf); ++a) {         /* security measure */
 392                 if (buf[a] == '/') buf[a] = '.';
 393                 }
 394
 395         dirs[0]=malloc(64);
 396         dirs[1]=malloc(64);
 397         strcpy(dirs[0],"messages");
 398         strcpy(dirs[1],"help");
 399         mesg_locate(targ,buf,2,dirs);
 400         free(dirs[0]);
 401         free(dirs[1]);
 402
 403         if (strlen(targ)==0) {
 404                 sprintf(targ, "./help/%s", buf);
 405                 }
 406
 407         mfp = fopen(targ,"w");
 408         if (mfp==NULL) {
 409                 cprintf("%d Cannot open '%s': %s\n",
 410                         ERROR,targ,strerror(errno));
 411                 return;
 412                 }
 413         cprintf("%d %s\n", SEND_LISTING, targ);
 414
 415         while (client_gets(buf), strcmp(buf, "000")) {
 416                 fprintf(mfp, "%s\n", buf);
 417                 }
 418
 419         fclose(mfp);
 420         }
 421
 422
 423 /*
 424  * who's online
 425  */
 426 void cmd_rwho(void) {
 427         struct CitContext *cptr;
 428         int spoofed = 0;
 429         int aide;
 430         char un[40], room[40], host[40], flags[5];
 431
 432         aide = CC->usersupp.axlevel >= 6;
 433         cprintf("%d\n",LISTING_FOLLOWS);
 434
 435         for (cptr = ContextList; cptr != NULL; cptr = cptr->next)
 436         {
 437                 flags[0] = '\0';
 438                 spoofed = 0;
 439
 440                 if (cptr->cs_flags & CS_POSTING)
 441                    strcat(flags, "*");
 442                 else
 443                    strcat(flags, ".");
 444
 445                 if (cptr->fake_username[0])
 446                 {
 447                    strcpy(un, cptr->fake_username);
 448                    spoofed = 1;
 449                 }
 450                 else
 451                    strcpy(un, cptr->curr_user);
 452
 453                 if (cptr->fake_hostname[0])
 454                 {
 455                    strcpy(host, cptr->fake_hostname);
 456                    spoofed = 1;
 457                 }
 458                 else
 459                    strcpy(host, cptr->cs_host);
 460
 461                 if (cptr->fake_roomname[0])
 462                 {
 463                    strcpy(room, cptr->fake_roomname);
 464                    spoofed = 1;
 465                 }
 466                 else
 467                    strcpy(room, cptr->cs_room);
 468
 469
 470                 if ((aide) && (spoofed))
 471                    strcat(flags, "+");
 472
 473                 if ((cptr->cs_flags & CS_STEALTH) && (aide))
 474                    strcat(flags, "-");
 475
 476                 if (((cptr->cs_flags&CS_STEALTH)==0) || (aide))
 477                 {
 478                         cprintf("%d|%s|%s|%s|%s|%ld|%s|%s\n",
 479                                 cptr->cs_pid, un, room,
 480                                 host, cptr->cs_clientname,
 481                                 (long)(cptr->lastidle),
 482                                 cptr->lastcmdname, flags);
 483                 }
 484                 if ((spoofed) && (aide))
 485                 {
 486                         cprintf("%d|%s|%s|%s|%s|%ld|%s|%s\n",
 487                                 cptr->cs_pid, cptr->curr_user, cptr->cs_room,
 488                                 cptr->cs_host, cptr->cs_clientname,
 489                                 (long)(cptr->lastidle),
 490                                 cptr->lastcmdname, flags);
 491
 492                 }
 493         }
 494         cprintf("000\n");
 495         }
 496
 497
 498 /*
 499  * Terminate another running session
 500  */
 501 void cmd_term(char *cmdbuf)
 502 {
 503         int session_num;
 504         struct CitContext *ccptr;
 505
 506         if (!CC->logged_in) {
 507                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 508                 return;
 509                 }
 510
 511         if (CC->usersupp.axlevel < 6) {
 512                 cprintf("%d You must be an Aide to terminate sessions.\n",
 513                         ERROR+HIGHER_ACCESS_REQUIRED);
 514                 return;
 515                 }
 516
 517         session_num = extract_int(cmdbuf, 0);
 518         if (session_num == CC->cs_pid) {
 519                 cprintf("%d You can't kill your own session.\n", ERROR);
 520                 return;
 521                 }
 522
 523         for (ccptr = ContextList; ccptr != NULL; ccptr = ccptr->next) {
 524                 if (session_num == ccptr->cs_pid) {
 525                         kill_session(ccptr->cs_pid);
 526                         cprintf("%d Session terminated.\n", OK);
 527                         return;
 528                         }
 529                 }
 530
 531         cprintf("%d No such session.\n", ERROR);
 532         }
 533
 534
 535
 536
 537
 538 /*
 539  * get the paginator prompt
 540  */
 541 void cmd_more(void) {
 542         cprintf("%d %s\n",OK,config.c_moreprompt);
 543         }
 544
 545 /*
 546  * echo
 547  */
 548 void cmd_echo(char *etext)
 549 {
 550         cprintf("%d %s\n",OK,etext);
 551         }
 552
 553
 554
 555 /*
 556  * identify as internal program
 557  */
 558 void cmd_ipgm(char *argbuf)
 559 {
 560         int secret;
 561
 562         secret = extract_int(argbuf, 0);
 563         if (secret == config.c_ipgm_secret) {
 564                 CC->internal_pgm = 1;
 565                 strcpy(CC->curr_user, "<internal program>");
 566                 CC->cs_flags = CC->cs_flags|CS_STEALTH;
 567                 cprintf("%d Authenticated as an internal program.\n",OK);
 568                 }
 569         else {
 570                 cprintf("%d Authentication failed.\n",ERROR);
 571                 }
 572         }
 573
 574
 575 /*
 576  * Shut down the server
 577  */
 578 void cmd_down(void) {
 579         if (!CC->logged_in) {
 580                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 581                 return;
 582                 }
 583
 584         if (CC->usersupp.axlevel < 6) {
 585                 cprintf("%d You must be an Aide to shut down the server.\n",
 586                         ERROR+HIGHER_ACCESS_REQUIRED);
 587                 return;
 588                 }
 589
 590         cprintf("%d Shutting down server.  Goodbye.\n", OK);
 591         master_cleanup();
 592         }
 593
 594 /*
 595  * Shut down the server
 596  */
 597 void cmd_scdn(char *argbuf)
 598 {
 599         int new_state;
 600
 601         if (!CC->logged_in) {
 602                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 603                 return;
 604                 }
 605
 606         if (CC->usersupp.axlevel < 6) {
 607                 cprintf("%d You must be an Aide to schedule a shutdown.\n",
 608                         ERROR+HIGHER_ACCESS_REQUIRED);
 609                 return;
 610                 }
 611
 612         new_state = extract_int(argbuf, 0);
 613         if ((new_state == 0) || (new_state == 1)) {
 614                 ScheduledShutdown = new_state;
 615                 }
 616         cprintf("%d %d\n", OK, ScheduledShutdown);
 617         }
 618
 619 /*
 620  * main context loop
 621  */
 622 void *context_loop(struct CitContext *con)
 623 {
 624         char cmdbuf[256];
 625         int session_num;
 626
 627         /*
 628          * Wedge our way into the context table.
 629          */
 630         InitMyContext(con);
 631
 632         /*
 633          * Initialize some variables specific to our context.
 634          */
 635         CC->curr_rm = (-1);
 636         CC->logged_in = 0;
 637         CC->internal_pgm = 0;
 638         CC->download_fp = NULL;
 639         CC->upload_fp = NULL;
 640         CC->cs_pid = con->client_socket;        /* not necessarily portable */
 641         CC->FirstExpressMessage = NULL;
 642         time(&CC->lastcmd);
 643         time(&CC->lastidle);
 644         strcpy(CC->lastcmdname, "    ");
 645         strcpy(CC->cs_clientname, "(unknown)");
 646         strcpy(CC->curr_user,"");
 647         strcpy(CC->net_node,"");
 648         sprintf(CC->temp,"/tmp/CitServer.%d.%d", getpid(), CC->cs_pid);
 649         strcpy(CC->cs_room, "");
 650         strcpy(CC->cs_host, config.c_fqdn);
 651         locate_host(CC->cs_host);
 652         CC->cs_flags = 0;
 653         CC->upload_type = UPL_FILE;
 654         CC->dl_is_net = 0;
 655
 656         session_num = session_count();
 657         CC->nologin = 0;
 658         if ((config.c_maxsessions > 0)&&(session_num >= config.c_maxsessions))
 659                 CC->nologin = 1;
 660
 661         if (CC->nologin==1) {
 662            cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 663                 ERROR+MAX_SESSIONS_EXCEEDED,
 664                 config.c_nodename,config.c_maxsessions);
 665                 }
 666         else {
 667            cprintf("%d %s Citadel/UX server ready.\n",OK,config.c_nodename);
 668                 }
 669
 670         lprintf(3, "citserver[%3d]: started.\n", CC->cs_pid);
 671         hook_start_session(CC->cs_pid);
 672
 673         do {
 674                 time(&CC->lastcmd);
 675                 if (client_gets(cmdbuf) < 1) cleanup(EXIT_NULL);
 676                 lprintf(5, "citserver[%3d]: %s\n", CC->cs_pid, cmdbuf);
 677                 hook_command_received(CC->cs_pid, cmdbuf);
 678
 679                 /*
 680                  * Let other clients see the last command we executed, but
 681                  * exclude NOOP because that would be boring.
 682                  */
 683                 if (struncmp(cmdbuf, "NOOP", 4)) {
 684                         strcpy(CC->lastcmdname, "    ");
 685                         strncpy(CC->lastcmdname, cmdbuf, 4);
 686                         time(&CC->lastidle);
 687                         }
 688
 689                 if ((struncmp(cmdbuf, "ENT0", 4)) && (struncmp(cmdbuf, "MESG", 4)) && (struncmp(cmdbuf, "MSGS", 4)))
 690                 {
 691                    CC->cs_flags &= ~CS_POSTING;
 692                 }
 693
 694 /*
 695  * This loop recognizes all server commands.
 696  */
 697
 698                 if (!struncmp(cmdbuf,"NOOP",4)) {
 699                         cprintf("%d%cok\n",OK,check_express());
 700                         }
 701
 702                 else if (!struncmp(cmdbuf,"QUIT",4)) {
 703                         cprintf("%d Goodbye.\n",OK);
 704                         }
 705
 706                 else if (!struncmp(cmdbuf,"LOUT",4)) {
 707                         if (CC->logged_in) logout(CC);
 708                         cprintf("%d logged out.\n",OK);
 709                         }
 710
 711                 else if (!struncmp(cmdbuf,"USER",4)) {
 712                         cmd_user(&cmdbuf[5]);
 713                         }
 714
 715                 else if (!struncmp(cmdbuf,"PASS",4)) {
 716                         cmd_pass(&cmdbuf[5]);
 717                         }
 718
 719                 else if (!struncmp(cmdbuf,"NEWU",4)) {
 720                         cmd_newu(&cmdbuf[5]);
 721                         }
 722
 723                 else if (!struncmp(cmdbuf,"SETP",4)) {
 724                         cmd_setp(&cmdbuf[5]);
 725                         }
 726
 727                 else if (!struncmp(cmdbuf,"LRMS",4)) {
 728                         cmd_lrms(&cmdbuf[5]);
 729                         }
 730
 731                 else if (!struncmp(cmdbuf,"LKRA",4)) {
 732                         cmd_lkra(&cmdbuf[5]);
 733                         }
 734
 735                 else if (!struncmp(cmdbuf,"LKRN",4)) {
 736                         cmd_lkrn(&cmdbuf[5]);
 737                         }
 738
 739                 else if (!struncmp(cmdbuf,"LKRO",4)) {
 740                         cmd_lkro(&cmdbuf[5]);
 741                         }
 742
 743                 else if (!struncmp(cmdbuf,"LZRM",4)) {
 744                         cmd_lzrm(&cmdbuf[5]);
 745                         }
 746
 747                 else if (!struncmp(cmdbuf,"GETU",4)) {
 748                         cmd_getu();
 749                         }
 750
 751                 else if (!struncmp(cmdbuf,"SETU",4)) {
 752                         cmd_setu(&cmdbuf[5]);
 753                         }
 754
 755                 else if (!struncmp(cmdbuf,"GOTO",4)) {
 756                         cmd_goto(&cmdbuf[5]);
 757                         }
 758
 759                 else if (!struncmp(cmdbuf,"MSGS",4)) {
 760                         cmd_msgs(&cmdbuf[5]);
 761                         }
 762
 763                 else if (!struncmp(cmdbuf,"WHOK",4)) {
 764                         cmd_whok();
 765                         }
 766
 767                 else if (!struncmp(cmdbuf,"RDIR",4)) {
 768                         cmd_rdir();
 769                         }
 770
 771                 else if (!struncmp(cmdbuf,"MSG0",4)) {
 772                         cmd_msg0(&cmdbuf[5]);
 773                         }
 774
 775                 else if (!struncmp(cmdbuf,"MSG2",4)) {
 776                         cmd_msg2(&cmdbuf[5]);
 777                         }
 778
 779                 else if (!struncmp(cmdbuf,"MSG3",4)) {
 780                         cmd_msg3(&cmdbuf[5]);
 781                         }
 782
 783                 else if (!struncmp(cmdbuf,"INFO",4)) {
 784                         cmd_info();
 785                         }
 786
 787                 else if (!struncmp(cmdbuf,"SLRP",4)) {
 788                         cmd_slrp(&cmdbuf[5]);
 789                         }
 790
 791                 else if (!struncmp(cmdbuf,"INVT",4)) {
 792                         cmd_invt_kick(&cmdbuf[5],1);
 793                         }
 794
 795                 else if (!struncmp(cmdbuf,"KICK",4)) {
 796                         cmd_invt_kick(&cmdbuf[5],0);
 797                         }
 798
 799                 else if (!struncmp(cmdbuf,"GETR",4)) {
 800                         cmd_getr();
 801                         }
 802
 803                 else if (!struncmp(cmdbuf,"SETR",4)) {
 804                         cmd_setr(&cmdbuf[5]);
 805                         }
 806
 807                 else if (!struncmp(cmdbuf,"GETA",4)) {
 808                         cmd_geta();
 809                         }
 810
 811                 else if (!struncmp(cmdbuf,"SETA",4)) {
 812                         cmd_seta(&cmdbuf[5]);
 813                         }
 814
 815                 else if (!struncmp(cmdbuf,"ENT0",4)) {
 816                         cmd_ent0(&cmdbuf[5]);
 817                         }
 818
 819                 else if (!struncmp(cmdbuf,"ENT3",4)) {
 820                         cmd_ent3(&cmdbuf[5]);
 821                         }
 822
 823                 else if (!struncmp(cmdbuf,"RINF",4)) {
 824                         cmd_rinf();
 825                         }
 826
 827                 else if (!struncmp(cmdbuf,"DELE",4)) {
 828                         cmd_dele(&cmdbuf[5]);
 829                         }
 830
 831                 else if (!struncmp(cmdbuf,"KILL",4)) {
 832                         cmd_kill(&cmdbuf[5]);
 833                         }
 834
 835                 else if (!struncmp(cmdbuf,"CRE8",4)) {
 836                         cmd_cre8(&cmdbuf[5]);
 837                         }
 838
 839                 else if (!struncmp(cmdbuf,"MOVE",4)) {
 840                         cmd_move(&cmdbuf[5]);
 841                         }
 842
 843                 else if (!struncmp(cmdbuf,"FORG",4)) {
 844                         cmd_forg();
 845                         }
 846
 847                 else if (!struncmp(cmdbuf,"MESG",4)) {
 848                         cmd_mesg(&cmdbuf[5]);
 849                         }
 850
 851                 else if (!struncmp(cmdbuf,"EMSG",4)) {
 852                         cmd_emsg(&cmdbuf[5]);
 853                         }
 854
 855                 else if (!struncmp(cmdbuf,"GNUR",4)) {
 856                         cmd_gnur();
 857                         }
 858
 859                 else if (!struncmp(cmdbuf,"GREG",4)) {
 860                         cmd_greg(&cmdbuf[5]);
 861                         }
 862
 863                 else if (!struncmp(cmdbuf,"VALI",4)) {
 864                         cmd_vali(&cmdbuf[5]);
 865                         }
 866
 867                 else if (!struncmp(cmdbuf,"EINF",4)) {
 868                         cmd_einf(&cmdbuf[5]);
 869                         }
 870
 871                 else if (!struncmp(cmdbuf,"LIST",4)) {
 872                         cmd_list();
 873                         }
 874
 875                 else if (!struncmp(cmdbuf,"REGI",4)) {
 876                         cmd_regi();
 877                         }
 878
 879                 else if (!struncmp(cmdbuf,"CHEK",4)) {
 880                         cmd_chek();
 881                         }
 882
 883                 else if (!struncmp(cmdbuf,"DELF",4)) {
 884                         cmd_delf(&cmdbuf[5]);
 885                         }
 886
 887                 else if (!struncmp(cmdbuf,"MOVF",4)) {
 888                         cmd_movf(&cmdbuf[5]);
 889                         }
 890
 891                 else if (!struncmp(cmdbuf,"NETF",4)) {
 892                         cmd_netf(&cmdbuf[5]);
 893                         }
 894
 895                 else if (!struncmp(cmdbuf,"RWHO",4)) {
 896                         cmd_rwho();
 897                         }
 898
 899                 else if (!struncmp(cmdbuf,"OPEN",4)) {
 900                         cmd_open(&cmdbuf[5]);
 901                         }
 902
 903                 else if (!struncmp(cmdbuf,"CLOS",4)) {
 904                         cmd_clos();
 905                         }
 906
 907                 else if (!struncmp(cmdbuf,"UOPN",4)) {
 908                         cmd_uopn(&cmdbuf[5]);
 909                         }
 910
 911                 else if (!struncmp(cmdbuf,"UCLS",4)) {
 912                         cmd_ucls(&cmdbuf[5]);
 913                         }
 914
 915                 else if (!struncmp(cmdbuf,"READ",4)) {
 916                         cmd_read(&cmdbuf[5]);
 917                         }
 918
 919                 else if (!struncmp(cmdbuf,"WRIT",4)) {
 920                         cmd_writ(&cmdbuf[5]);
 921                         }
 922
 923                 else if (!struncmp(cmdbuf,"QUSR",4)) {
 924                         cmd_qusr(&cmdbuf[5]);
 925                         }
 926
 927                 else if (!struncmp(cmdbuf,"ECHO",4)) {
 928                         cmd_echo(&cmdbuf[5]);
 929                         }
 930
 931                 else if (!struncmp(cmdbuf,"OIMG",4)) {
 932                         cmd_oimg(&cmdbuf[5]);
 933                         }
 934
 935                 else if (!struncmp(cmdbuf,"MORE",4)) {
 936                         cmd_more();
 937                         }
 938
 939                 else if (!struncmp(cmdbuf,"NETP",4)) {
 940                         cmd_netp(&cmdbuf[5]);
 941                         }
 942
 943                 else if (!struncmp(cmdbuf,"NDOP",4)) {
 944                         cmd_ndop(&cmdbuf[5]);
 945                         }
 946
 947                 else if (!struncmp(cmdbuf,"NUOP",4)) {
 948                         cmd_nuop(&cmdbuf[5]);
 949                         }
 950
 951                 else if (!struncmp(cmdbuf,"LFLR",4)) {
 952                         cmd_lflr();
 953                         }
 954
 955                 else if (!struncmp(cmdbuf,"CFLR",4)) {
 956                         cmd_cflr(&cmdbuf[5]);
 957                         }
 958
 959                 else if (!struncmp(cmdbuf,"KFLR",4)) {
 960                         cmd_kflr(&cmdbuf[5]);
 961                         }
 962
 963                 else if (!struncmp(cmdbuf,"EFLR",4)) {
 964                         cmd_eflr(&cmdbuf[5]);
 965                         }
 966
 967                 else if (!struncmp(cmdbuf,"IDEN",4)) {
 968                         cmd_iden(&cmdbuf[5]);
 969                         }
 970
 971                 else if (!struncmp(cmdbuf,"IPGM",4)) {
 972                         cmd_ipgm(&cmdbuf[5]);
 973                         }
 974
 975                 else if (!struncmp(cmdbuf,"CHAT",4)) {
 976                         cmd_chat(&cmdbuf[5]);
 977                         }
 978
 979                 else if (!struncmp(cmdbuf,"PEXP",4)) {
 980                         cmd_pexp();
 981                         }
 982
 983                 else if (!struncmp(cmdbuf,"SEXP",4)) {
 984                         cmd_sexp(&cmdbuf[5]);
 985                         }
 986
 987                 else if (!struncmp(cmdbuf,"EBIO",4)) {
 988                         cmd_ebio();
 989                         }
 990
 991                 else if (!struncmp(cmdbuf,"RBIO",4)) {
 992                         cmd_rbio(&cmdbuf[5]);
 993                         }
 994
 995                 else if (!struncmp(cmdbuf,"LBIO",4)) {
 996                         cmd_lbio();
 997                         }
 998
 999                 else if (!struncmp(cmdbuf,"STEL",4)) {
1000                         cmd_stel(&cmdbuf[5]);
1001                         }
1002
1003                 else if (!struncmp(cmdbuf,"TERM",4)) {
1004                         cmd_term(&cmdbuf[5]);
1005                         }
1006
1007                 else if (!struncmp(cmdbuf,"DOWN",4)) {
1008                         cmd_down();
1009                         }
1010
1011                 else if (!struncmp(cmdbuf,"SCDN",4)) {
1012                         cmd_scdn(&cmdbuf[5]);
1013                         }
1014
1015                 else if (!struncmp(cmdbuf, "NSET", 4)) {
1016                         cmd_nset(&cmdbuf[5]);
1017                         }
1018
1019                 else if (!struncmp(cmdbuf, "UIMG", 4)) {
1020                         cmd_uimg(&cmdbuf[5]);
1021                         }
1022                 else if (!struncmp(cmdbuf, "UCHG", 4)) {
1023                         cmd_uchg(&cmdbuf[5]);
1024                         }
1025                 else if (!struncmp(cmdbuf, "TIME", 4)) {
1026                         cmd_time(&cmdbuf[5]);
1027                         }
1028                 else if (!struncmp(cmdbuf, "HCHG", 4)) {
1029                         cmd_hchg(&cmdbuf[5]);
1030                         }
1031                 else if (!struncmp(cmdbuf, "RCHG", 4)) {
1032                         cmd_rchg(&cmdbuf[5]);
1033                         }
1034                 else {
1035                         cprintf("%d Unrecognized or unsupported command.\n",
1036                                 ERROR);
1037                         }
1038
1039                 } while(struncmp(cmdbuf,"QUIT",4));
1040
1041         cleanup(EXIT_NORMAL);
1042         return(NULL);
1043         }