citadel/citserver.c

   1 /* $Id$ */
   2 #include <stdlib.h>
   3 #include <unistd.h>
   4 #include <stdio.h>
   5 #include <fcntl.h>
   6 #include <signal.h>
   7 #include <time.h>
   8 #include <ctype.h>
   9 #include <string.h>
  10 #include <errno.h>
  11 #include <limits.h>
  12 #include <pthread.h>
  13 #include <syslog.h>
  14 #include <dlfcn.h>
  15 #include "citadel.h"
  16 #include "server.h"
  17 #include "sysdep_decls.h"
  18 #include "citserver.h"
  19 #include "config.h"
  20 #include "database.h"
  21 #include "housekeeping.h"
  22 #include "user_ops.h"
  23 #include "logging.h"
  24 #include "support.h"
  25 #include "msgbase.h"
  26 #include "locate_host.h"
  27 #include "room_ops.h"
  28 #include "file_ops.h"
  29 #include "dynloader.h"
  30 #include "policy.h"
  31 #include "control.h"
  32
  33 struct CitContext *ContextList = NULL;
  34 int ScheduledShutdown = 0;
  35
  36 /*
  37  * Various things that need to be initialized at startup
  38  */
  39 void master_startup(void) {
  40         lprintf(7, "Opening databases\n");
  41         open_databases();
  42
  43         lprintf(7, "Checking floor reference counts\n");
  44         check_ref_counts();
  45
  46         lprintf(7, "Creating base rooms (if necessary)\n");
  47         create_room(BASEROOM, 0, "", 0);
  48         create_room(AIDEROOM, 4, "", 0);
  49         create_room(config.c_twitroom, 0, "", 0);
  50         }
  51
  52 /*
  53  * Cleanup routine to be called when the server is shutting down.
  54  */
  55 void master_cleanup(void) {
  56         struct CleanupFunctionHook *fcn;
  57
  58         /* Cancel all running sessions */
  59         lprintf(7, "Cancelling running sessions...\n");
  60         while (ContextList != NULL) {
  61                 kill_session(ContextList->cs_pid);
  62                 }
  63
  64         /* Run any cleanup routines registered by loadable modules */
  65         for (fcn = CleanupHookTable; fcn != NULL; fcn = fcn->next) {
  66                 (*fcn->h_function_pointer)();
  67                 }
  68
  69         /* Close databases */
  70         lprintf(7, "Closing databases\n");
  71         close_databases();
  72
  73         /* Do system-dependent stuff */
  74         sysdep_master_cleanup();
  75
  76         /* Now go away. */
  77         lprintf(3, "citserver: exiting.\n");
  78         fflush(stdout); fflush(stderr);
  79         exit(0);
  80         }
  81
  82
  83 /*
  84  * Gracefully terminate the session and thread.
  85  * (This is called as a cleanup handler by the thread library.)
  86  *
  87  * All NON-system-dependent stuff is done in this function.
  88  * System-dependent session/thread cleanup is in cleanup() in sysdep.c
  89  */
  90 void cleanup_stuff(void *arg)
  91 {
  92         struct ExpressMessage *emptr;
  93
  94         lprintf(9, "cleanup_stuff() called\n");
  95
  96         lprintf(7, "Calling logout(%d)\n", CC->cs_pid);
  97         logout(CC);
  98
  99         rec_log(CL_TERMINATE,CC->curr_user);
 100         unlink(CC->temp);
 101         lprintf(3, "citserver[%3d]: ended.\n",CC->cs_pid);
 102
 103         /* Run any cleanup routines registered by loadable modules */
 104         PerformSessionHooks(EVT_STOP);
 105
 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         /* Deallocate any message list we might have in memory */
 118         if (CC->msglist != NULL) free(CC->msglist);
 119
 120         /* Purge any stale user/room relationships */
 121         PurgeStaleRelationships();
 122
 123         /* Now get rid of the session and context */
 124         lprintf(7, "cleanup_stuff() calling RemoveContext(%d)\n", CC->cs_pid);
 125         RemoveContext(CC);
 126
 127         /* While we still have an extra thread with no user attached to it,
 128          * take the opportunity to do some housekeeping before exiting.
 129          */
 130         do_housekeeping();
 131         }
 132
 133
 134 /*
 135  * set_wtmpsupp()  -  alter the session listing
 136  */
 137 void set_wtmpsupp(char *newtext)
 138 {
 139         strncpy(CC->cs_room,newtext,sizeof CC->cs_room);
 140         CC->cs_room[sizeof CC->cs_room - 1] = 0;
 141         time(&CC->cs_lastupdt);
 142
 143         /* Run any routines registered by loadable modules */
 144         PerformSessionHooks(EVT_NEWROOM);
 145         }
 146
 147
 148 /*
 149  * call set_wtmpsupp() with the name of the current room, modified a bit...
 150  */
 151 void set_wtmpsupp_to_current_room() {
 152         if (CC->quickroom.QRflags & QR_PRIVATE) {
 153                 set_wtmpsupp("<private room>");
 154                 }
 155         else if (CC->quickroom.QRflags & QR_MAILBOX) {
 156                 set_wtmpsupp(&CC->quickroom.QRname[11]);
 157                 }
 158         else {
 159                 set_wtmpsupp(CC->quickroom.QRname);
 160                 }
 161         }
 162
 163
 164
 165 /*
 166  * cmd_info()  -  tell the client about this server
 167  */
 168 void cmd_info(void) {
 169         cprintf("%d Server info:\n",LISTING_FOLLOWS);
 170         cprintf("%d\n",CC->cs_pid);
 171         cprintf("%s\n",config.c_nodename);
 172         cprintf("%s\n",config.c_humannode);
 173         cprintf("%s\n",config.c_fqdn);
 174         cprintf("%s\n",CITADEL);
 175         cprintf("%d\n",REV_LEVEL);
 176         cprintf("%s\n",config.c_bbs_city);
 177         cprintf("%s\n",config.c_sysadm);
 178         cprintf("%d\n",SERVER_TYPE);
 179         cprintf("%s\n",config.c_moreprompt);
 180         cprintf("1\n"); /* 1 = yes, this system supports floors */
 181         cprintf("000\n");
 182         }
 183
 184 void cmd_rchg(char *newroomname)
 185 {
 186    if ((newroomname) && (newroomname[0]))
 187    {
 188       bzero(CC->fake_roomname, ROOMNAMELEN);
 189       strncpy(CC->fake_roomname, newroomname, ROOMNAMELEN-1);
 190    }
 191    else
 192       strcpy(CC->fake_roomname, "");
 193    cprintf("%d OK\n",OK);
 194 }
 195
 196 void cmd_hchg(char *newhostname)
 197 {
 198    if ((newhostname) && (newhostname[0]))
 199    {
 200       bzero(CC->fake_hostname, 25);
 201       strncpy(CC->fake_hostname, newhostname, 24);
 202    }
 203    else
 204       strcpy(CC->fake_hostname, "");
 205    cprintf("%d OK\n",OK);
 206 }
 207
 208 void cmd_uchg(char *newusername)
 209 {
 210    if (CC->usersupp.axlevel < 6)
 211    {
 212       cprintf("%d You must be an Aide to use UCHG.\n",
 213                 ERROR+HIGHER_ACCESS_REQUIRED);
 214       return;
 215    }
 216    if ((newusername) && (newusername[0]))
 217    {
 218       CC->cs_flags &= ~CS_STEALTH;
 219       bzero(CC->fake_username, 32);
 220       if (strncasecmp(newusername, CC->curr_user, strlen(CC->curr_user)))
 221          strncpy(CC->fake_username, newusername, 31);
 222    }
 223    else
 224    {
 225       CC->fake_username[0] = '\0';
 226       CC->cs_flags |= CS_STEALTH;
 227    }
 228    cprintf("%d\n",OK);
 229 }
 230
 231 /*
 232  * returns an asterisk if there are any express messages waiting,
 233  * space otherwise.
 234  */
 235 char check_express(void) {
 236         if (CC->FirstExpressMessage == NULL) {
 237                 return(' ');
 238                 }
 239         else {
 240                 return('*');
 241                 }
 242         }
 243
 244 void cmd_time(void)
 245 {
 246    time_t tv;
 247
 248    tv = time(NULL);
 249
 250    cprintf("%d %ld\n", OK, tv);
 251 }
 252
 253 /*
 254  * check a hostname against the public_clients file
 255  */
 256 int is_public_client(char *where)
 257 {
 258         char buf[256];
 259         FILE *fp;
 260
 261         if (!strcasecmp(where,"localhost")) return(1);
 262         if (!strcasecmp(where,config.c_fqdn)) return(1);
 263
 264         fp = fopen("public_clients","r");
 265         if (fp == NULL) return(0);
 266
 267         while (fgets(buf,256,fp)!=NULL) {
 268                 while (isspace((buf[strlen(buf)-1])))
 269                         buf[strlen(buf)-1] = 0;
 270                 if (!strcasecmp(buf,where)) {
 271                         fclose(fp);
 272                         return(1);
 273                         }
 274                 }
 275
 276         fclose(fp);
 277         return(0);
 278         }
 279
 280
 281 /*
 282  * the client is identifying itself to the server
 283  */
 284 void cmd_iden(char *argbuf)
 285 {
 286         int dev_code;
 287         int cli_code;
 288         int rev_level;
 289         char desc[256];
 290         char from_host[256];
 291
 292         if (num_parms(argbuf)<4) {
 293                 cprintf("%d usage error\n",ERROR);
 294                 return;
 295                 }
 296
 297         dev_code = extract_int(argbuf,0);
 298         cli_code = extract_int(argbuf,1);
 299         rev_level = extract_int(argbuf,2);
 300         extract(desc,argbuf,3);
 301
 302         strncpy(from_host,config.c_fqdn,sizeof from_host);
 303         from_host[sizeof from_host - 1] = 0;
 304         if (num_parms(argbuf)>=5) extract(from_host,argbuf,4);
 305
 306         CC->cs_clientdev = dev_code;
 307         CC->cs_clienttyp = cli_code;
 308         CC->cs_clientver = rev_level;
 309         strncpy(CC->cs_clientname,desc,31);
 310         CC->cs_clientname[31] = 0;
 311
 312         if ((strlen(from_host)>0) &&
 313            (is_public_client(CC->cs_host))) {
 314                 strncpy(CC->cs_host,from_host,24);
 315                 CC->cs_host[24] = 0;
 316                 }
 317         set_wtmpsupp_to_current_room();
 318
 319         syslog(LOG_NOTICE,"client %d/%d/%01d.%02d (%s)\n",
 320                 dev_code,
 321                 cli_code,
 322                 (rev_level / 100),
 323                 (rev_level % 100),
 324                 desc);
 325                 cprintf("%d Ok\n",OK);
 326         }
 327
 328
 329 /*
 330  * enter or exit "stealth mode"
 331  */
 332 void cmd_stel(char *cmdbuf)
 333 {
 334         int requested_mode;
 335
 336         requested_mode = extract_int(cmdbuf,0);
 337         if (requested_mode !=0) requested_mode = 1;
 338
 339         if (!CC->logged_in) {
 340                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 341                 return;
 342                 }
 343
 344         if (CC->usersupp.axlevel < 6) {
 345                 cprintf("%d You must be an Aide to use stealth mode.\n",
 346                         ERROR+HIGHER_ACCESS_REQUIRED);
 347                 return;
 348                 }
 349
 350         if (CC->cs_flags & CS_STEALTH) {
 351                 if (requested_mode == 0)
 352                         CC->cs_flags = CC->cs_flags-CS_STEALTH;
 353                 }
 354         else {
 355                 if (requested_mode == 1)
 356                         CC->cs_flags = CC->cs_flags|CS_STEALTH;
 357                 }
 358
 359         set_wtmpsupp_to_current_room();
 360         cprintf("%d Ok\n",OK);
 361         }
 362
 363
 364
 365
 366 /*
 367  * display system messages or help
 368  */
 369 void cmd_mesg(char *mname)
 370 {
 371         FILE *mfp;
 372         char targ[256];
 373         char buf[256];
 374         char *dirs[2];
 375
 376         extract(buf,mname,0);
 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
 388         if (strlen(targ)==0) {
 389                 cprintf("%d '%s' not found.\n",ERROR,mname);
 390                 return;
 391                 }
 392
 393         mfp = fopen(targ,"r");
 394         if (mfp==NULL) {
 395                 cprintf("%d Cannot open '%s': %s\n",
 396                         ERROR,targ,strerror(errno));
 397                 return;
 398                 }
 399         cprintf("%d %s\n",LISTING_FOLLOWS,buf);
 400
 401         while (fgets(buf,255,mfp)!=NULL) {
 402                 buf[strlen(buf)-1] = 0;
 403                 do_help_subst(buf);
 404                 cprintf("%s\n",buf);
 405                 }
 406
 407         fclose(mfp);
 408         cprintf("000\n");
 409         }
 410
 411
 412 /*
 413  * enter system messages or help
 414  */
 415 void cmd_emsg(char *mname)
 416 {
 417         FILE *mfp;
 418         char targ[256];
 419         char buf[256];
 420         char *dirs[2];
 421         int a;
 422
 423         if (CC->usersupp.axlevel < 6) {
 424                 cprintf("%d You must be an Aide to edit system messages.\n",
 425                         ERROR+HIGHER_ACCESS_REQUIRED);
 426                 return;
 427                 }
 428
 429         extract(buf,mname,0);
 430         for (a=0; a<strlen(buf); ++a) {         /* security measure */
 431                 if (buf[a] == '/') buf[a] = '.';
 432                 }
 433
 434         dirs[0]=malloc(64);
 435         dirs[1]=malloc(64);
 436         strcpy(dirs[0],"messages");
 437         strcpy(dirs[1],"help");
 438         mesg_locate(targ,buf,2,dirs);
 439         free(dirs[0]);
 440         free(dirs[1]);
 441
 442         if (strlen(targ)==0) {
 443                 snprintf(targ, sizeof targ, "./help/%s", buf);
 444                 }
 445
 446         mfp = fopen(targ,"w");
 447         if (mfp==NULL) {
 448                 cprintf("%d Cannot open '%s': %s\n",
 449                         ERROR,targ,strerror(errno));
 450                 return;
 451                 }
 452         cprintf("%d %s\n", SEND_LISTING, targ);
 453
 454         while (client_gets(buf), strcmp(buf, "000")) {
 455                 fprintf(mfp, "%s\n", buf);
 456                 }
 457
 458         fclose(mfp);
 459         }
 460
 461
 462 /*
 463  * who's online
 464  */
 465 void cmd_rwho(void) {
 466         struct CitContext *cptr;
 467         int spoofed = 0;
 468         int aide;
 469         char un[40], room[40], host[40], flags[5];
 470
 471         aide = CC->usersupp.axlevel >= 6;
 472         cprintf("%d\n",LISTING_FOLLOWS);
 473
 474         for (cptr = ContextList; cptr != NULL; cptr = cptr->next)
 475         {
 476                 flags[0] = '\0';
 477                 spoofed = 0;
 478
 479                 if (cptr->cs_flags & CS_POSTING)
 480                    strcat(flags, "*");
 481                 else
 482                    strcat(flags, ".");
 483
 484                 if (cptr->fake_username[0])
 485                 {
 486                    strcpy(un, cptr->fake_username);
 487                    spoofed = 1;
 488                 }
 489                 else
 490                    strcpy(un, cptr->curr_user);
 491
 492                 if (cptr->fake_hostname[0])
 493                 {
 494                    strcpy(host, cptr->fake_hostname);
 495                    spoofed = 1;
 496                 }
 497                 else
 498                    strcpy(host, cptr->cs_host);
 499
 500                 if (cptr->fake_roomname[0])
 501                 {
 502                    strcpy(room, cptr->fake_roomname);
 503                    spoofed = 1;
 504                 }
 505                 else
 506                    strcpy(room, cptr->cs_room);
 507
 508
 509                 if ((aide) && (spoofed))
 510                    strcat(flags, "+");
 511
 512                 if ((cptr->cs_flags & CS_STEALTH) && (aide))
 513                    strcat(flags, "-");
 514
 515                 if (((cptr->cs_flags&CS_STEALTH)==0) || (aide))
 516                 {
 517                         cprintf("%d|%s|%s|%s|%s|%ld|%s|%s\n",
 518                                 cptr->cs_pid, un, room,
 519                                 host, cptr->cs_clientname,
 520                                 (long)(cptr->lastidle),
 521                                 cptr->lastcmdname, flags);
 522                 }
 523                 if ((spoofed) && (aide))
 524                 {
 525                         cprintf("%d|%s|%s|%s|%s|%ld|%s|%s\n",
 526                                 cptr->cs_pid, cptr->curr_user, cptr->cs_room,
 527                                 cptr->cs_host, cptr->cs_clientname,
 528                                 (long)(cptr->lastidle),
 529                                 cptr->lastcmdname, flags);
 530
 531                 }
 532         }
 533         cprintf("000\n");
 534         }
 535
 536
 537 /*
 538  * Terminate another running session
 539  */
 540 void cmd_term(char *cmdbuf)
 541 {
 542         int session_num;
 543         struct CitContext *ccptr;
 544
 545         if (!CC->logged_in) {
 546                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 547                 return;
 548                 }
 549
 550         if (CC->usersupp.axlevel < 6) {
 551                 cprintf("%d You must be an Aide to terminate sessions.\n",
 552                         ERROR+HIGHER_ACCESS_REQUIRED);
 553                 return;
 554                 }
 555
 556         session_num = extract_int(cmdbuf, 0);
 557         if (session_num == CC->cs_pid) {
 558                 cprintf("%d You can't kill your own session.\n", ERROR);
 559                 return;
 560                 }
 561
 562         for (ccptr = ContextList; ccptr != NULL; ccptr = ccptr->next) {
 563                 if (session_num == ccptr->cs_pid) {
 564                         kill_session(ccptr->cs_pid);
 565                         cprintf("%d Session terminated.\n", OK);
 566                         return;
 567                         }
 568                 }
 569
 570         cprintf("%d No such session.\n", ERROR);
 571         }
 572
 573
 574
 575
 576
 577 /*
 578  * get the paginator prompt
 579  */
 580 void cmd_more(void) {
 581         cprintf("%d %s\n",OK,config.c_moreprompt);
 582         }
 583
 584 /*
 585  * echo
 586  */
 587 void cmd_echo(char *etext)
 588 {
 589         cprintf("%d %s\n",OK,etext);
 590         }
 591
 592
 593
 594 /*
 595  * identify as internal program
 596  */
 597 void cmd_ipgm(char *argbuf)
 598 {
 599         int secret;
 600
 601         secret = extract_int(argbuf, 0);
 602         if (secret == config.c_ipgm_secret) {
 603                 CC->internal_pgm = 1;
 604                 strcpy(CC->curr_user, "<internal program>");
 605                 CC->cs_flags = CC->cs_flags|CS_STEALTH;
 606                 cprintf("%d Authenticated as an internal program.\n",OK);
 607                 }
 608         else {
 609                 cprintf("%d Authentication failed.\n",ERROR);
 610                 }
 611         }
 612
 613
 614 /*
 615  * Shut down the server
 616  */
 617 void cmd_down(void) {
 618         if (!CC->logged_in) {
 619                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 620                 return;
 621                 }
 622
 623         if (CC->usersupp.axlevel < 6) {
 624                 cprintf("%d You must be an Aide to shut down the server.\n",
 625                         ERROR+HIGHER_ACCESS_REQUIRED);
 626                 return;
 627                 }
 628
 629         cprintf("%d Shutting down server.  Goodbye.\n", OK);
 630         master_cleanup();
 631         }
 632
 633 /*
 634  * Schedule or cancel a server shutdown
 635  */
 636 void cmd_scdn(char *argbuf)
 637 {
 638         int new_state;
 639
 640         if (!CC->logged_in) {
 641                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 642                 return;
 643                 }
 644
 645         if (CC->usersupp.axlevel < 6) {
 646                 cprintf("%d You must be an Aide to schedule a shutdown.\n",
 647                         ERROR+HIGHER_ACCESS_REQUIRED);
 648                 return;
 649                 }
 650
 651         new_state = extract_int(argbuf, 0);
 652         if ((new_state == 0) || (new_state == 1)) {
 653                 ScheduledShutdown = new_state;
 654                 }
 655         cprintf("%d %d\n", OK, ScheduledShutdown);
 656         }
 657
 658
 659 /*
 660  * main context loop
 661  */
 662 void *context_loop(struct CitContext *con)
 663 {
 664         char cmdbuf[256];
 665         int session_num;
 666
 667         /*
 668          * Wedge our way into the context table.
 669          */
 670         InitMyContext(con);
 671
 672         /*
 673          * Initialize some variables specific to our context.
 674          */
 675         CC->logged_in = 0;
 676         CC->internal_pgm = 0;
 677         CC->download_fp = NULL;
 678         CC->upload_fp = NULL;
 679         CC->cs_pid = con->client_socket;        /* not necessarily portable */
 680         CC->FirstExpressMessage = NULL;
 681         CC->msglist = NULL;
 682         CC->num_msgs = 0;
 683         time(&CC->lastcmd);
 684         time(&CC->lastidle);
 685         strcpy(CC->lastcmdname, "    ");
 686         strcpy(CC->cs_clientname, "(unknown)");
 687         strcpy(CC->curr_user,"");
 688         strcpy(CC->net_node,"");
 689         snprintf(CC->temp, sizeof CC->temp, "/tmp/CitServer.%d.%d", getpid(), CC->cs_pid);
 690         strcpy(CC->cs_room, "");
 691         strncpy(CC->cs_host, config.c_fqdn, sizeof CC->cs_host);
 692         CC->cs_host[sizeof CC->cs_host - 1] = 0;
 693         locate_host(CC->cs_host);
 694         CC->cs_flags = 0;
 695         CC->upload_type = UPL_FILE;
 696         CC->dl_is_net = 0;
 697
 698         session_num = session_count();
 699         CC->nologin = 0;
 700         if ((config.c_maxsessions > 0)&&(session_num >= config.c_maxsessions))
 701                 CC->nologin = 1;
 702
 703         if (CC->nologin==1) {
 704            cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 705                 ERROR+MAX_SESSIONS_EXCEEDED,
 706                 config.c_nodename,config.c_maxsessions);
 707                 }
 708         else {
 709            cprintf("%d %s Citadel/UX server ready.\n",OK,config.c_nodename);
 710                 }
 711
 712         lprintf(3, "citserver[%3d]: started.\n", CC->cs_pid);
 713
 714         /* Run any session startup routines registered by loadable modules */
 715         PerformSessionHooks(EVT_START);
 716
 717         rec_log(CL_CONNECT, "");
 718
 719         do {
 720                 time(&CC->lastcmd);
 721                 bzero(cmdbuf, sizeof cmdbuf); /* Clear it, just in case */
 722                 if (client_gets(cmdbuf) < 1) cleanup(EXIT_NULL);
 723                 lprintf(5, "citserver[%3d]: %s\n", CC->cs_pid, cmdbuf);
 724
 725                 /*
 726                  * Let other clients see the last command we executed, but
 727                  * exclude NOOP because that would be boring.
 728                  */
 729                 if (strncasecmp(cmdbuf, "NOOP", 4)) {
 730                         strcpy(CC->lastcmdname, "    ");
 731                         strncpy(CC->lastcmdname, cmdbuf, 4);
 732                         time(&CC->lastidle);
 733                         }
 734
 735                 if ((strncasecmp(cmdbuf, "ENT0", 4)) && (strncasecmp(cmdbuf, "MESG", 4)) && (strncasecmp(cmdbuf, "MSGS", 4)))
 736                 {
 737                    CC->cs_flags &= ~CS_POSTING;
 738                 }
 739
 740 /*
 741  * This loop recognizes all server commands.
 742  */
 743
 744                 if (!strncasecmp(cmdbuf,"NOOP",4)) {
 745                         cprintf("%d%cok\n",OK,check_express());
 746                         }
 747
 748                 else if (!strncasecmp(cmdbuf,"QUIT",4)) {
 749                         cprintf("%d Goodbye.\n",OK);
 750                         }
 751
 752                 else if (!strncasecmp(cmdbuf,"LOUT",4)) {
 753                         if (CC->logged_in) logout(CC);
 754                         cprintf("%d logged out.\n",OK);
 755                         }
 756
 757                 else if (!strncasecmp(cmdbuf,"USER",4)) {
 758                         cmd_user(&cmdbuf[5]);
 759                         }
 760
 761                 else if (!strncasecmp(cmdbuf,"PASS",4)) {
 762                         cmd_pass(&cmdbuf[5]);
 763                         }
 764
 765                 else if (!strncasecmp(cmdbuf,"NEWU",4)) {
 766                         cmd_newu(&cmdbuf[5]);
 767                         }
 768
 769                 else if (!strncasecmp(cmdbuf,"SETP",4)) {
 770                         cmd_setp(&cmdbuf[5]);
 771                         }
 772
 773                 else if (!strncasecmp(cmdbuf,"LRMS",4)) {
 774                         cmd_lrms(&cmdbuf[5]);
 775                         }
 776
 777                 else if (!strncasecmp(cmdbuf,"LKRA",4)) {
 778                         cmd_lkra(&cmdbuf[5]);
 779                         }
 780
 781                 else if (!strncasecmp(cmdbuf,"LKRN",4)) {
 782                         cmd_lkrn(&cmdbuf[5]);
 783                         }
 784
 785                 else if (!strncasecmp(cmdbuf,"LKRO",4)) {
 786                         cmd_lkro(&cmdbuf[5]);
 787                         }
 788
 789                 else if (!strncasecmp(cmdbuf,"LZRM",4)) {
 790                         cmd_lzrm(&cmdbuf[5]);
 791                         }
 792
 793                 else if (!strncasecmp(cmdbuf,"GETU",4)) {
 794                         cmd_getu();
 795                         }
 796
 797                 else if (!strncasecmp(cmdbuf,"SETU",4)) {
 798                         cmd_setu(&cmdbuf[5]);
 799                         }
 800
 801                 else if (!strncasecmp(cmdbuf,"GOTO",4)) {
 802                         cmd_goto(&cmdbuf[5]);
 803                         }
 804
 805                 else if (!strncasecmp(cmdbuf,"MSGS",4)) {
 806                         cmd_msgs(&cmdbuf[5]);
 807                         }
 808
 809                 else if (!strncasecmp(cmdbuf,"WHOK",4)) {
 810                         cmd_whok();
 811                         }
 812
 813                 else if (!strncasecmp(cmdbuf,"RDIR",4)) {
 814                         cmd_rdir();
 815                         }
 816
 817                 else if (!strncasecmp(cmdbuf,"MSG0",4)) {
 818                         cmd_msg0(&cmdbuf[5]);
 819                         }
 820
 821                 else if (!strncasecmp(cmdbuf,"MSG2",4)) {
 822                         cmd_msg2(&cmdbuf[5]);
 823                         }
 824
 825                 else if (!strncasecmp(cmdbuf,"MSG3",4)) {
 826                         cmd_msg3(&cmdbuf[5]);
 827                         }
 828
 829                 else if (!strncasecmp(cmdbuf,"INFO",4)) {
 830                         cmd_info();
 831                         }
 832
 833                 else if (!strncasecmp(cmdbuf,"SLRP",4)) {
 834                         cmd_slrp(&cmdbuf[5]);
 835                         }
 836
 837                 else if (!strncasecmp(cmdbuf,"INVT",4)) {
 838                         cmd_invt_kick(&cmdbuf[5],1);
 839                         }
 840
 841                 else if (!strncasecmp(cmdbuf,"KICK",4)) {
 842                         cmd_invt_kick(&cmdbuf[5],0);
 843                         }
 844
 845                 else if (!strncasecmp(cmdbuf,"GETR",4)) {
 846                         cmd_getr();
 847                         }
 848
 849                 else if (!strncasecmp(cmdbuf,"SETR",4)) {
 850                         cmd_setr(&cmdbuf[5]);
 851                         }
 852
 853                 else if (!strncasecmp(cmdbuf,"GETA",4)) {
 854                         cmd_geta();
 855                         }
 856
 857                 else if (!strncasecmp(cmdbuf,"SETA",4)) {
 858                         cmd_seta(&cmdbuf[5]);
 859                         }
 860
 861                 else if (!strncasecmp(cmdbuf,"ENT0",4)) {
 862                         cmd_ent0(&cmdbuf[5]);
 863                         }
 864
 865                 else if (!strncasecmp(cmdbuf,"ENT3",4)) {
 866                         cmd_ent3(&cmdbuf[5]);
 867                         }
 868
 869                 else if (!strncasecmp(cmdbuf,"RINF",4)) {
 870                         cmd_rinf();
 871                         }
 872
 873                 else if (!strncasecmp(cmdbuf,"DELE",4)) {
 874                         cmd_dele(&cmdbuf[5]);
 875                         }
 876
 877                 else if (!strncasecmp(cmdbuf,"KILL",4)) {
 878                         cmd_kill(&cmdbuf[5]);
 879                         }
 880
 881                 else if (!strncasecmp(cmdbuf,"CRE8",4)) {
 882                         cmd_cre8(&cmdbuf[5]);
 883                         }
 884
 885                 else if (!strncasecmp(cmdbuf,"MOVE",4)) {
 886                         cmd_move(&cmdbuf[5]);
 887                         }
 888
 889                 else if (!strncasecmp(cmdbuf,"FORG",4)) {
 890                         cmd_forg();
 891                         }
 892
 893                 else if (!strncasecmp(cmdbuf,"MESG",4)) {
 894                         cmd_mesg(&cmdbuf[5]);
 895                         }
 896
 897                 else if (!strncasecmp(cmdbuf,"EMSG",4)) {
 898                         cmd_emsg(&cmdbuf[5]);
 899                         }
 900
 901                 else if (!strncasecmp(cmdbuf,"GNUR",4)) {
 902                         cmd_gnur();
 903                         }
 904
 905                 else if (!strncasecmp(cmdbuf,"GREG",4)) {
 906                         cmd_greg(&cmdbuf[5]);
 907                         }
 908
 909                 else if (!strncasecmp(cmdbuf,"VALI",4)) {
 910                         cmd_vali(&cmdbuf[5]);
 911                         }
 912
 913                 else if (!strncasecmp(cmdbuf,"EINF",4)) {
 914                         cmd_einf(&cmdbuf[5]);
 915                         }
 916
 917                 else if (!strncasecmp(cmdbuf,"LIST",4)) {
 918                         cmd_list();
 919                         }
 920
 921                 else if (!strncasecmp(cmdbuf,"REGI",4)) {
 922                         cmd_regi();
 923                         }
 924
 925                 else if (!strncasecmp(cmdbuf,"CHEK",4)) {
 926                         cmd_chek();
 927                         }
 928
 929                 else if (!strncasecmp(cmdbuf,"DELF",4)) {
 930                         cmd_delf(&cmdbuf[5]);
 931                         }
 932
 933                 else if (!strncasecmp(cmdbuf,"MOVF",4)) {
 934                         cmd_movf(&cmdbuf[5]);
 935                         }
 936
 937                 else if (!strncasecmp(cmdbuf,"NETF",4)) {
 938                         cmd_netf(&cmdbuf[5]);
 939                         }
 940
 941                 else if (!strncasecmp(cmdbuf,"RWHO",4)) {
 942                         cmd_rwho();
 943                         }
 944
 945                 else if (!strncasecmp(cmdbuf,"OPEN",4)) {
 946                         cmd_open(&cmdbuf[5]);
 947                         }
 948
 949                 else if (!strncasecmp(cmdbuf,"CLOS",4)) {
 950                         cmd_clos();
 951                         }
 952
 953                 else if (!strncasecmp(cmdbuf,"UOPN",4)) {
 954                         cmd_uopn(&cmdbuf[5]);
 955                         }
 956
 957                 else if (!strncasecmp(cmdbuf,"UCLS",4)) {
 958                         cmd_ucls(&cmdbuf[5]);
 959                         }
 960
 961                 else if (!strncasecmp(cmdbuf,"READ",4)) {
 962                         cmd_read(&cmdbuf[5]);
 963                         }
 964
 965                 else if (!strncasecmp(cmdbuf,"WRIT",4)) {
 966                         cmd_writ(&cmdbuf[5]);
 967                         }
 968
 969                 else if (!strncasecmp(cmdbuf,"QUSR",4)) {
 970                         cmd_qusr(&cmdbuf[5]);
 971                         }
 972
 973                 else if (!strncasecmp(cmdbuf,"ECHO",4)) {
 974                         cmd_echo(&cmdbuf[5]);
 975                         }
 976
 977                 else if (!strncasecmp(cmdbuf,"OIMG",4)) {
 978                         cmd_oimg(&cmdbuf[5]);
 979                         }
 980
 981                 else if (!strncasecmp(cmdbuf,"MORE",4)) {
 982                         cmd_more();
 983                         }
 984
 985                 else if (!strncasecmp(cmdbuf,"NETP",4)) {
 986                         cmd_netp(&cmdbuf[5]);
 987                         }
 988
 989                 else if (!strncasecmp(cmdbuf,"NDOP",4)) {
 990                         cmd_ndop(&cmdbuf[5]);
 991                         }
 992
 993                 else if (!strncasecmp(cmdbuf,"NUOP",4)) {
 994                         cmd_nuop(&cmdbuf[5]);
 995                         }
 996
 997                 else if (!strncasecmp(cmdbuf,"LFLR",4)) {
 998                         cmd_lflr();
 999                         }
1000
1001                 else if (!strncasecmp(cmdbuf,"CFLR",4)) {
1002                         cmd_cflr(&cmdbuf[5]);
1003                         }
1004
1005                 else if (!strncasecmp(cmdbuf,"KFLR",4)) {
1006                         cmd_kflr(&cmdbuf[5]);
1007                         }
1008
1009                 else if (!strncasecmp(cmdbuf,"EFLR",4)) {
1010                         cmd_eflr(&cmdbuf[5]);
1011                         }
1012
1013                 else if (!strncasecmp(cmdbuf,"IDEN",4)) {
1014                         cmd_iden(&cmdbuf[5]);
1015                         }
1016
1017                 else if (!strncasecmp(cmdbuf,"IPGM",4)) {
1018                         cmd_ipgm(&cmdbuf[5]);
1019                         }
1020
1021                 else if (!strncasecmp(cmdbuf,"EBIO",4)) {
1022                         cmd_ebio();
1023                         }
1024
1025                 else if (!strncasecmp(cmdbuf,"RBIO",4)) {
1026                         cmd_rbio(&cmdbuf[5]);
1027                         }
1028
1029                 else if (!strncasecmp(cmdbuf,"LBIO",4)) {
1030                         cmd_lbio();
1031                         }
1032
1033                 else if (!strncasecmp(cmdbuf,"STEL",4)) {
1034                         cmd_stel(&cmdbuf[5]);
1035                         }
1036
1037                 else if (!strncasecmp(cmdbuf,"TERM",4)) {
1038                         cmd_term(&cmdbuf[5]);
1039                         }
1040
1041                 else if (!strncasecmp(cmdbuf,"DOWN",4)) {
1042                         cmd_down();
1043                         }
1044
1045                 else if (!strncasecmp(cmdbuf,"SCDN",4)) {
1046                         cmd_scdn(&cmdbuf[5]);
1047                         }
1048
1049                 else if (!strncasecmp(cmdbuf, "NSET", 4)) {
1050                         cmd_nset(&cmdbuf[5]);
1051                         }
1052
1053                 else if (!strncasecmp(cmdbuf, "UIMG", 4)) {
1054                         cmd_uimg(&cmdbuf[5]);
1055                         }
1056
1057                 else if (!strncasecmp(cmdbuf, "UCHG", 4)) {
1058                         cmd_uchg(&cmdbuf[5]);
1059                         }
1060
1061                 else if (!strncasecmp(cmdbuf, "TIME", 4)) {
1062                         cmd_time();
1063                         }
1064
1065                 else if (!strncasecmp(cmdbuf, "HCHG", 4)) {
1066                         cmd_hchg(&cmdbuf[5]);
1067                         }
1068
1069                 else if (!strncasecmp(cmdbuf, "RCHG", 4)) {
1070                         cmd_rchg(&cmdbuf[5]);
1071                         }
1072
1073                 else if (!strncasecmp(cmdbuf, "AGUP", 4)) {
1074                         cmd_agup(&cmdbuf[5]);
1075                         }
1076
1077                 else if (!strncasecmp(cmdbuf, "ASUP", 4)) {
1078                         cmd_asup(&cmdbuf[5]);
1079                         }
1080
1081                 else if (!strncasecmp(cmdbuf, "GPEX", 4)) {
1082                         cmd_gpex(&cmdbuf[5]);
1083                         }
1084
1085                 else if (!strncasecmp(cmdbuf, "SPEX", 4)) {
1086                         cmd_spex(&cmdbuf[5]);
1087                         }
1088
1089                 else if (!strncasecmp(cmdbuf, "CONF", 4)) {
1090                         cmd_conf(&cmdbuf[5]);
1091                         }
1092
1093                 else if (!DLoader_Exec_Cmd(cmdbuf))
1094                         {
1095                            cprintf("%d Unrecognized or unsupported command.\n",
1096                                     ERROR);
1097                         }
1098
1099                 } while(strncasecmp(cmdbuf, "QUIT", 4));
1100
1101         cleanup(EXIT_NORMAL);
1102         return(NULL);
1103         }