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 <dlfcn.h>
  13 #include "citadel.h"
  14 #include "server.h"
  15 #include "sysdep_decls.h"
  16 #include "citserver.h"
  17 #include "config.h"
  18 #include "database.h"
  19 #include "housekeeping.h"
  20 #include "hooks.h"
  21 #include "user_ops.h"
  22 #include "logging.h"
  23 #include "support.h"
  24 #include "msgbase.h"
  25 #include "locate_host.h"
  26 #include "room_ops.h"
  27 #include "file_ops.h"
  28 #include "dynloader.h"
  29
  30 struct CitContext *ContextList = NULL;
  31 int ScheduledShutdown = 0;
  32
  33 /*
  34  * Various things that need to be initialized at startup
  35  */
  36 void master_startup(void) {
  37         lprintf(7, "Opening databases\n");
  38         open_databases();
  39
  40         lprintf(7, "Checking floor reference counts\n");
  41         check_ref_counts();
  42
  43         }
  44
  45 /*
  46  * Cleanup routine to be called when the server is shutting down.
  47  */
  48 void master_cleanup(void) {
  49
  50         /* Cancel all running sessions */
  51         lprintf(7, "Cancelling running sessions...\n");
  52         while (ContextList != NULL) {
  53                 kill_session(ContextList->cs_pid);
  54                 }
  55
  56         /* Close databases */
  57         lprintf(7, "Closing databases\n");
  58         close_databases();
  59
  60         /* Do system-dependent stuff */
  61         sysdep_master_cleanup();
  62
  63         /* Now go away. */
  64         hook_cleanup();
  65         lprintf(3, "citserver: exiting.\n");
  66         exit(0);
  67         }
  68
  69
  70 /*
  71  * Gracefully terminate the session and thread.
  72  * (This is called as a cleanup handler by the thread library.)
  73  *
  74  * All NON-system-dependent stuff is done in this function.
  75  * System-dependent session/thread cleanup is in cleanup() in sysdep.c
  76  */
  77 void cleanup_stuff(void *arg)
  78 {
  79         struct ExpressMessage *emptr;
  80
  81         lprintf(9, "cleanup_stuff() called\n");
  82
  83         lprintf(7, "Calling logout(%d)\n", CC->cs_pid);
  84         logout(CC);
  85
  86         rec_log(CL_TERMINATE,CC->curr_user);
  87         unlink(CC->temp);
  88         lprintf(3, "citserver[%3d]: ended.\n",CC->cs_pid);
  89         hook_end_session(CC->cs_pid);
  90         syslog(LOG_NOTICE,"session %d ended", CC->cs_pid);
  91
  92         /* Deallocate any unsent express messages */
  93         begin_critical_section(S_SESSION_TABLE);
  94         while (CC->FirstExpressMessage != NULL) {
  95                 emptr = CC->FirstExpressMessage;
  96                 CC->FirstExpressMessage = CC->FirstExpressMessage->next;
  97                 free(emptr);
  98                 }
  99         end_critical_section(S_SESSION_TABLE);
 100
 101         /* Deallocate any message list we might have in memory */
 102         if (CC->msglist != NULL) free(CC->msglist);
 103
 104         /* Now get rid of the session and context */
 105         lprintf(7, "cleanup_stuff() is calling RemoveContext(%d)\n", CC->cs_pid);
 106         RemoveContext(CC);
 107
 108         /* While we still have an extra thread with no user attached to it,
 109          * take the opportunity to do some housekeeping before exiting.
 110          */
 111         do_housekeeping();
 112         }
 113
 114
 115 /*
 116  * set_wtmpsupp()  -  alter the session listing
 117  */
 118 void set_wtmpsupp(char *newtext)
 119 {
 120         strncpy(CC->cs_room,newtext,19);
 121         CC->cs_room[19] = 0;
 122         time(&CC->cs_lastupdt);
 123         hook_room_name(CC->cs_pid, CC->cs_room);
 124         }
 125
 126
 127 /*
 128  * cmd_info()  -  tell the client about this server
 129  */
 130 void cmd_info(void) {
 131         cprintf("%d Server info:\n",LISTING_FOLLOWS);
 132         cprintf("%d\n",CC->cs_pid);
 133         cprintf("%s\n",config.c_nodename);
 134         cprintf("%s\n",config.c_humannode);
 135         cprintf("%s\n",config.c_fqdn);
 136         cprintf("%s\n",CITADEL);
 137         cprintf("%d\n",REV_LEVEL);
 138         cprintf("%s\n",config.c_bbs_city);
 139         cprintf("%s\n",config.c_sysadm);
 140         cprintf("%d\n",SERVER_TYPE);
 141         cprintf("%s\n",config.c_moreprompt);
 142         cprintf("1\n"); /* 1 = yes, this system supports floors */
 143         cprintf("000\n");
 144         }
 145
 146 void cmd_rchg(char *newroomname)
 147 {
 148    if ((newroomname) && (newroomname[0]))
 149    {
 150       bzero(CC->fake_roomname, 20);
 151       strncpy(CC->fake_roomname, newroomname, 19);
 152    }
 153    else
 154       CC->fake_roomname[0] = '\0';
 155    cprintf("%d\n",OK);
 156 }
 157
 158 void cmd_hchg(char *newhostname)
 159 {
 160    if ((newhostname) && (newhostname[0]))
 161    {
 162       bzero(CC->fake_hostname, 25);
 163       strncpy(CC->fake_hostname, newhostname, 24);
 164    }
 165    else
 166       CC->fake_hostname[0] = '\0';
 167    cprintf("%d\n",OK);
 168 }
 169
 170 void cmd_uchg(char *newusername)
 171 {
 172    if (CC->usersupp.axlevel < 6)
 173    {
 174       cprintf("%d You must be an Aide to use UCHG.\n",
 175                 ERROR+HIGHER_ACCESS_REQUIRED);
 176       return;
 177    }
 178    if ((newusername) && (newusername[0]))
 179    {
 180       CC->cs_flags &= ~CS_STEALTH;
 181       bzero(CC->fake_username, 32);
 182       if (strncasecmp(newusername, CC->curr_user, strlen(CC->curr_user)))
 183          strncpy(CC->fake_username, newusername, 31);
 184    }
 185    else
 186    {
 187       CC->fake_username[0] = '\0';
 188       CC->cs_flags |= CS_STEALTH;
 189    }
 190    cprintf("%d\n",OK);
 191 }
 192
 193 /*
 194  * returns an asterisk if there are any express messages waiting,
 195  * space otherwise.
 196  */
 197 char check_express(void) {
 198         if (CC->FirstExpressMessage == NULL) {
 199                 return(' ');
 200                 }
 201         else {
 202                 return('*');
 203                 }
 204         }
 205
 206 void cmd_time(void)
 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 (!strcasecmp(where,"localhost")) return(1);
 224         if (!strcasecmp(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 (!strcasecmp(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  * Schedule or cancel a server shutdown
 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 /*
 621  * Run a server extension (FIX FIX FIX initial hack; polish this up)
 622  */
 623 void cmd_extn(char *argbuf) {
 624         char ExtensionName[256];
 625         int is_ipgm;
 626         int pid;
 627         char portstr[16];
 628         char ipgm[32];
 629         char sess[16];
 630
 631
 632         extract(ExtensionName, argbuf, 0);
 633         is_ipgm = extract_int(argbuf, 1);
 634
 635         pid = fork();
 636         lprintf(9, "fork() returned %d\n", pid);
 637         if (pid < 0) {
 638                 cprintf("%d fork failed: %s\n",
 639                         ERROR + INTERNAL_ERROR,
 640                         strerror(errno));
 641                 return;
 642                 }
 643         else if (pid == 0) {
 644
 645                 sprintf(portstr, "%d", config.c_port_number);
 646
 647                 if (is_ipgm)
 648                         sprintf(ipgm, "%d", config.c_ipgm_secret);
 649                 else
 650                         strcpy(ipgm, "");
 651
 652                 sprintf(sess, "%d", CC->cs_pid);
 653
 654                 execlp(ExtensionName, ExtensionName,
 655                         "localhost",                    /* server address */
 656                         portstr,                        /* port number */
 657                         ipgm,                           /* ipgm secret */
 658                         CC->usersupp.fullname,          /* user name */
 659                         CC->usersupp.password,          /* password */
 660                         CC->quickroom.QRname,           /* current room */
 661                         sess,                           /* assoc session id */
 662                         NULL);
 663
 664                 lprintf(9, "exec() failed: %s\n", strerror(errno));
 665                 exit(1);
 666                 }
 667         else {
 668                 cprintf("%d Ok\n", OK);
 669                 }
 670         }
 671
 672
 673
 674
 675 /*
 676  * main context loop
 677  */
 678 void *context_loop(struct CitContext *con)
 679 {
 680         char cmdbuf[256];
 681         int session_num;
 682
 683         /*
 684          * Wedge our way into the context table.
 685          */
 686         InitMyContext(con);
 687
 688         /*
 689          * Initialize some variables specific to our context.
 690          */
 691         CC->curr_rm = (-1);
 692         CC->logged_in = 0;
 693         CC->internal_pgm = 0;
 694         CC->download_fp = NULL;
 695         CC->upload_fp = NULL;
 696         CC->cs_pid = con->client_socket;        /* not necessarily portable */
 697         CC->FirstExpressMessage = NULL;
 698         CC->msglist = NULL;
 699         CC->num_msgs = 0;
 700         time(&CC->lastcmd);
 701         time(&CC->lastidle);
 702         strcpy(CC->lastcmdname, "    ");
 703         strcpy(CC->cs_clientname, "(unknown)");
 704         strcpy(CC->curr_user,"");
 705         strcpy(CC->net_node,"");
 706         sprintf(CC->temp,"/tmp/CitServer.%d.%d", getpid(), CC->cs_pid);
 707         strcpy(CC->cs_room, "");
 708         strcpy(CC->cs_host, config.c_fqdn);
 709         locate_host(CC->cs_host);
 710         CC->cs_flags = 0;
 711         CC->upload_type = UPL_FILE;
 712         CC->dl_is_net = 0;
 713
 714         session_num = session_count();
 715         CC->nologin = 0;
 716         if ((config.c_maxsessions > 0)&&(session_num >= config.c_maxsessions))
 717                 CC->nologin = 1;
 718
 719         if (CC->nologin==1) {
 720            cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 721                 ERROR+MAX_SESSIONS_EXCEEDED,
 722                 config.c_nodename,config.c_maxsessions);
 723                 }
 724         else {
 725            cprintf("%d %s Citadel/UX server ready.\n",OK,config.c_nodename);
 726                 }
 727
 728         lprintf(3, "citserver[%3d]: started.\n", CC->cs_pid);
 729         hook_start_session(CC->cs_pid);
 730         rec_log(CL_CONNECT, "");
 731
 732         do {
 733                 time(&CC->lastcmd);
 734                 if (client_gets(cmdbuf) < 1) cleanup(EXIT_NULL);
 735                 lprintf(5, "citserver[%3d]: %s\n", CC->cs_pid, cmdbuf);
 736                 hook_command_received(CC->cs_pid, cmdbuf);
 737
 738                 /*
 739                  * Let other clients see the last command we executed, but
 740                  * exclude NOOP because that would be boring.
 741                  */
 742                 if (strncasecmp(cmdbuf, "NOOP", 4)) {
 743                         strcpy(CC->lastcmdname, "    ");
 744                         strncpy(CC->lastcmdname, cmdbuf, 4);
 745                         time(&CC->lastidle);
 746                         }
 747
 748                 if ((strncasecmp(cmdbuf, "ENT0", 4)) && (strncasecmp(cmdbuf, "MESG", 4)) && (strncasecmp(cmdbuf, "MSGS", 4)))
 749                 {
 750                    CC->cs_flags &= ~CS_POSTING;
 751                 }
 752
 753 /*
 754  * This loop recognizes all server commands.
 755  */
 756
 757                 if (!strncasecmp(cmdbuf,"NOOP",4)) {
 758                         cprintf("%d%cok\n",OK,check_express());
 759                         }
 760
 761                 else if (!strncasecmp(cmdbuf,"QUIT",4)) {
 762                         cprintf("%d Goodbye.\n",OK);
 763                         }
 764
 765                 else if (!strncasecmp(cmdbuf,"LOUT",4)) {
 766                         if (CC->logged_in) logout(CC);
 767                         cprintf("%d logged out.\n",OK);
 768                         }
 769
 770                 else if (!strncasecmp(cmdbuf,"USER",4)) {
 771                         cmd_user(&cmdbuf[5]);
 772                         }
 773
 774                 else if (!strncasecmp(cmdbuf,"PASS",4)) {
 775                         cmd_pass(&cmdbuf[5]);
 776                         }
 777
 778                 else if (!strncasecmp(cmdbuf,"NEWU",4)) {
 779                         cmd_newu(&cmdbuf[5]);
 780                         }
 781
 782                 else if (!strncasecmp(cmdbuf,"SETP",4)) {
 783                         cmd_setp(&cmdbuf[5]);
 784                         }
 785
 786                 else if (!strncasecmp(cmdbuf,"LRMS",4)) {
 787                         cmd_lrms(&cmdbuf[5]);
 788                         }
 789
 790                 else if (!strncasecmp(cmdbuf,"LKRA",4)) {
 791                         cmd_lkra(&cmdbuf[5]);
 792                         }
 793
 794                 else if (!strncasecmp(cmdbuf,"LKRN",4)) {
 795                         cmd_lkrn(&cmdbuf[5]);
 796                         }
 797
 798                 else if (!strncasecmp(cmdbuf,"LKRO",4)) {
 799                         cmd_lkro(&cmdbuf[5]);
 800                         }
 801
 802                 else if (!strncasecmp(cmdbuf,"LZRM",4)) {
 803                         cmd_lzrm(&cmdbuf[5]);
 804                         }
 805
 806                 else if (!strncasecmp(cmdbuf,"GETU",4)) {
 807                         cmd_getu();
 808                         }
 809
 810                 else if (!strncasecmp(cmdbuf,"SETU",4)) {
 811                         cmd_setu(&cmdbuf[5]);
 812                         }
 813
 814                 else if (!strncasecmp(cmdbuf,"GOTO",4)) {
 815                         cmd_goto(&cmdbuf[5]);
 816                         }
 817
 818                 else if (!strncasecmp(cmdbuf,"MSGS",4)) {
 819                         cmd_msgs(&cmdbuf[5]);
 820                         }
 821
 822                 else if (!strncasecmp(cmdbuf,"WHOK",4)) {
 823                         cmd_whok();
 824                         }
 825
 826                 else if (!strncasecmp(cmdbuf,"RDIR",4)) {
 827                         cmd_rdir();
 828                         }
 829
 830                 else if (!strncasecmp(cmdbuf,"MSG0",4)) {
 831                         cmd_msg0(&cmdbuf[5]);
 832                         }
 833
 834                 else if (!strncasecmp(cmdbuf,"MSG2",4)) {
 835                         cmd_msg2(&cmdbuf[5]);
 836                         }
 837
 838                 else if (!strncasecmp(cmdbuf,"MSG3",4)) {
 839                         cmd_msg3(&cmdbuf[5]);
 840                         }
 841
 842                 else if (!strncasecmp(cmdbuf,"INFO",4)) {
 843                         cmd_info();
 844                         }
 845
 846                 else if (!strncasecmp(cmdbuf,"SLRP",4)) {
 847                         cmd_slrp(&cmdbuf[5]);
 848                         }
 849
 850                 else if (!strncasecmp(cmdbuf,"INVT",4)) {
 851                         cmd_invt_kick(&cmdbuf[5],1);
 852                         }
 853
 854                 else if (!strncasecmp(cmdbuf,"KICK",4)) {
 855                         cmd_invt_kick(&cmdbuf[5],0);
 856                         }
 857
 858                 else if (!strncasecmp(cmdbuf,"GETR",4)) {
 859                         cmd_getr();
 860                         }
 861
 862                 else if (!strncasecmp(cmdbuf,"SETR",4)) {
 863                         cmd_setr(&cmdbuf[5]);
 864                         }
 865
 866                 else if (!strncasecmp(cmdbuf,"GETA",4)) {
 867                         cmd_geta();
 868                         }
 869
 870                 else if (!strncasecmp(cmdbuf,"SETA",4)) {
 871                         cmd_seta(&cmdbuf[5]);
 872                         }
 873
 874                 else if (!strncasecmp(cmdbuf,"ENT0",4)) {
 875                         cmd_ent0(&cmdbuf[5]);
 876                         }
 877
 878                 else if (!strncasecmp(cmdbuf,"ENT3",4)) {
 879                         cmd_ent3(&cmdbuf[5]);
 880                         }
 881
 882                 else if (!strncasecmp(cmdbuf,"RINF",4)) {
 883                         cmd_rinf();
 884                         }
 885
 886                 else if (!strncasecmp(cmdbuf,"DELE",4)) {
 887                         cmd_dele(&cmdbuf[5]);
 888                         }
 889
 890                 else if (!strncasecmp(cmdbuf,"KILL",4)) {
 891                         cmd_kill(&cmdbuf[5]);
 892                         }
 893
 894                 else if (!strncasecmp(cmdbuf,"CRE8",4)) {
 895                         cmd_cre8(&cmdbuf[5]);
 896                         }
 897
 898                 else if (!strncasecmp(cmdbuf,"MOVE",4)) {
 899                         cmd_move(&cmdbuf[5]);
 900                         }
 901
 902                 else if (!strncasecmp(cmdbuf,"FORG",4)) {
 903                         cmd_forg();
 904                         }
 905
 906                 else if (!strncasecmp(cmdbuf,"MESG",4)) {
 907                         cmd_mesg(&cmdbuf[5]);
 908                         }
 909
 910                 else if (!strncasecmp(cmdbuf,"EMSG",4)) {
 911                         cmd_emsg(&cmdbuf[5]);
 912                         }
 913
 914                 else if (!strncasecmp(cmdbuf,"GNUR",4)) {
 915                         cmd_gnur();
 916                         }
 917
 918                 else if (!strncasecmp(cmdbuf,"GREG",4)) {
 919                         cmd_greg(&cmdbuf[5]);
 920                         }
 921
 922                 else if (!strncasecmp(cmdbuf,"VALI",4)) {
 923                         cmd_vali(&cmdbuf[5]);
 924                         }
 925
 926                 else if (!strncasecmp(cmdbuf,"EINF",4)) {
 927                         cmd_einf(&cmdbuf[5]);
 928                         }
 929
 930                 else if (!strncasecmp(cmdbuf,"LIST",4)) {
 931                         cmd_list();
 932                         }
 933
 934                 else if (!strncasecmp(cmdbuf,"REGI",4)) {
 935                         cmd_regi();
 936                         }
 937
 938                 else if (!strncasecmp(cmdbuf,"CHEK",4)) {
 939                         cmd_chek();
 940                         }
 941
 942                 else if (!strncasecmp(cmdbuf,"DELF",4)) {
 943                         cmd_delf(&cmdbuf[5]);
 944                         }
 945
 946                 else if (!strncasecmp(cmdbuf,"MOVF",4)) {
 947                         cmd_movf(&cmdbuf[5]);
 948                         }
 949
 950                 else if (!strncasecmp(cmdbuf,"NETF",4)) {
 951                         cmd_netf(&cmdbuf[5]);
 952                         }
 953
 954                 else if (!strncasecmp(cmdbuf,"RWHO",4)) {
 955                         cmd_rwho();
 956                         }
 957
 958                 else if (!strncasecmp(cmdbuf,"OPEN",4)) {
 959                         cmd_open(&cmdbuf[5]);
 960                         }
 961
 962                 else if (!strncasecmp(cmdbuf,"CLOS",4)) {
 963                         cmd_clos();
 964                         }
 965
 966                 else if (!strncasecmp(cmdbuf,"UOPN",4)) {
 967                         cmd_uopn(&cmdbuf[5]);
 968                         }
 969
 970                 else if (!strncasecmp(cmdbuf,"UCLS",4)) {
 971                         cmd_ucls(&cmdbuf[5]);
 972                         }
 973
 974                 else if (!strncasecmp(cmdbuf,"READ",4)) {
 975                         cmd_read(&cmdbuf[5]);
 976                         }
 977
 978                 else if (!strncasecmp(cmdbuf,"WRIT",4)) {
 979                         cmd_writ(&cmdbuf[5]);
 980                         }
 981
 982                 else if (!strncasecmp(cmdbuf,"QUSR",4)) {
 983                         cmd_qusr(&cmdbuf[5]);
 984                         }
 985
 986                 else if (!strncasecmp(cmdbuf,"ECHO",4)) {
 987                         cmd_echo(&cmdbuf[5]);
 988                         }
 989
 990                 else if (!strncasecmp(cmdbuf,"OIMG",4)) {
 991                         cmd_oimg(&cmdbuf[5]);
 992                         }
 993
 994                 else if (!strncasecmp(cmdbuf,"MORE",4)) {
 995                         cmd_more();
 996                         }
 997
 998                 else if (!strncasecmp(cmdbuf,"NETP",4)) {
 999                         cmd_netp(&cmdbuf[5]);
1000                         }
1001
1002                 else if (!strncasecmp(cmdbuf,"NDOP",4)) {
1003                         cmd_ndop(&cmdbuf[5]);
1004                         }
1005
1006                 else if (!strncasecmp(cmdbuf,"NUOP",4)) {
1007                         cmd_nuop(&cmdbuf[5]);
1008                         }
1009
1010                 else if (!strncasecmp(cmdbuf,"LFLR",4)) {
1011                         cmd_lflr();
1012                         }
1013
1014                 else if (!strncasecmp(cmdbuf,"CFLR",4)) {
1015                         cmd_cflr(&cmdbuf[5]);
1016                         }
1017
1018                 else if (!strncasecmp(cmdbuf,"KFLR",4)) {
1019                         cmd_kflr(&cmdbuf[5]);
1020                         }
1021
1022                 else if (!strncasecmp(cmdbuf,"EFLR",4)) {
1023                         cmd_eflr(&cmdbuf[5]);
1024                         }
1025
1026                 else if (!strncasecmp(cmdbuf,"IDEN",4)) {
1027                         cmd_iden(&cmdbuf[5]);
1028                         }
1029
1030                 else if (!strncasecmp(cmdbuf,"IPGM",4)) {
1031                         cmd_ipgm(&cmdbuf[5]);
1032                         }
1033
1034                 else if (!strncasecmp(cmdbuf,"EBIO",4)) {
1035                         cmd_ebio();
1036                         }
1037
1038                 else if (!strncasecmp(cmdbuf,"RBIO",4)) {
1039                         cmd_rbio(&cmdbuf[5]);
1040                         }
1041
1042                 else if (!strncasecmp(cmdbuf,"LBIO",4)) {
1043                         cmd_lbio();
1044                         }
1045
1046                 else if (!strncasecmp(cmdbuf,"STEL",4)) {
1047                         cmd_stel(&cmdbuf[5]);
1048                         }
1049
1050                 else if (!strncasecmp(cmdbuf,"TERM",4)) {
1051                         cmd_term(&cmdbuf[5]);
1052                         }
1053
1054                 else if (!strncasecmp(cmdbuf,"DOWN",4)) {
1055                         cmd_down();
1056                         }
1057
1058                 else if (!strncasecmp(cmdbuf,"SCDN",4)) {
1059                         cmd_scdn(&cmdbuf[5]);
1060                         }
1061
1062                 else if (!strncasecmp(cmdbuf, "NSET", 4)) {
1063                         cmd_nset(&cmdbuf[5]);
1064                         }
1065
1066                 else if (!strncasecmp(cmdbuf, "UIMG", 4)) {
1067                         cmd_uimg(&cmdbuf[5]);
1068                         }
1069
1070                 else if (!strncasecmp(cmdbuf, "UCHG", 4)) {
1071                         cmd_uchg(&cmdbuf[5]);
1072                         }
1073
1074                 else if (!strncasecmp(cmdbuf, "TIME", 4)) {
1075                         cmd_time();
1076                         }
1077
1078                 else if (!strncasecmp(cmdbuf, "HCHG", 4)) {
1079                         cmd_hchg(&cmdbuf[5]);
1080                         }
1081
1082                 else if (!strncasecmp(cmdbuf, "RCHG", 4)) {
1083                         cmd_rchg(&cmdbuf[5]);
1084                         }
1085
1086                 else if (!strncasecmp(cmdbuf, "EXTN", 4)) {
1087                         cmd_extn(&cmdbuf[5]);
1088                         }
1089
1090                 else if (!strncasecmp(cmdbuf, "AGUP", 4)) {
1091                         cmd_agup(&cmdbuf[5]);
1092                         }
1093
1094                 else if (!strncasecmp(cmdbuf, "ASUP", 4)) {
1095                         cmd_asup(&cmdbuf[5]);
1096                         }
1097
1098                 else if (!DLoader_Exec_Cmd(cmdbuf))
1099                         {
1100                            cprintf("%d Unrecognized or unsupported command.\n",
1101                                     ERROR);
1102                         }
1103
1104                 } while(strncasecmp(cmdbuf, "QUIT", 4));
1105
1106         cleanup(EXIT_NORMAL);
1107         return(NULL);
1108         }