citadel/user_ops.c

   1 /* needed to properly enable crypt() stuff on some systems */
   2 #define _XOPEN_SOURCE
   3
   4 #include <stdlib.h>
   5 #include <unistd.h>
   6 #include <stdio.h>
   7 #include <fcntl.h>
   8 #include <signal.h>
   9 #include <pwd.h>
  10 #include <sys/types.h>
  11 #include <sys/time.h>
  12 #include <string.h>
  13 #include <syslog.h>
  14 #include <pthread.h>
  15 #include "citadel.h"
  16 #include "server.h"
  17 #include "proto.h"
  18
  19 extern struct config config;
  20
  21
  22 /*
  23  * pwcrypt()  -  simple password encryption
  24  */
  25 void pwcrypt(char *text, int code)
  26 {
  27         int a;
  28         for (a=0; a<strlen(text); ++a) text[a]=(text[a]^(((code|128)^a)&0xFF));
  29         }
  30
  31
  32 /*
  33  * hash()  -  hash table function for user lookup
  34  */
  35 int hash(char *str)
  36 {
  37         int h = 0;
  38         int i;
  39
  40         for (i=0; i<strlen(str); ++i) h=h+((i+1)*tolower(str[i]));
  41         return(h);
  42         }
  43
  44
  45 /*
  46  * getuser()  -  retrieve named user into supplied buffer.
  47  *               returns 0 on success
  48  */
  49 int getuser(struct usersupp *usbuf, char name[]) {
  50
  51         char lowercase_name[32];
  52         int a;
  53         struct cdbdata *cdbus;
  54
  55         bzero(usbuf, sizeof(struct usersupp));
  56         for (a=0; a<=strlen(name); ++a) {
  57                 lowercase_name[a] = tolower(name[a]);
  58                 }
  59
  60         cdbus = cdb_fetch(CDB_USERSUPP, lowercase_name, strlen(lowercase_name));
  61         if (cdbus == NULL) {    /* not found */
  62                 return(1);
  63                 }
  64
  65         memcpy(usbuf, cdbus->ptr, cdbus->len);
  66         cdb_free(cdbus);
  67         return(0);
  68         }
  69
  70
  71 /*
  72  * lgetuser()  -  same as getuser() but locks the record
  73  */
  74 int lgetuser(struct usersupp *usbuf, char *name)
  75 {
  76         int retcode;
  77
  78         retcode = getuser(usbuf,name);
  79         if (retcode == 0) {
  80                 begin_critical_section(S_USERSUPP);
  81                 }
  82         return(retcode);
  83         }
  84
  85
  86 /*
  87  * putuser()  -  write user buffer into the correct place on disk
  88  */
  89 void putuser(struct usersupp *usbuf, char *name)
  90 {
  91         char lowercase_name[32];
  92         int a;
  93
  94         for (a=0; a<=strlen(name); ++a) {
  95                 lowercase_name[a] = tolower(name[a]);
  96                 }
  97
  98         cdb_store(CDB_USERSUPP, lowercase_name, strlen(lowercase_name),
  99                 usbuf, sizeof(struct usersupp));
 100
 101         }
 102
 103
 104 /*
 105  * lputuser()  -  same as putuser() but locks the record
 106  */
 107 void lputuser(struct usersupp *usbuf, char *name)
 108 {
 109         putuser(usbuf,name);
 110         end_critical_section(S_USERSUPP);
 111         }
 112
 113
 114 /*
 115  * Is the user currently logged in an Aide?
 116  */
 117 int is_aide(void) {
 118         if (CC->usersupp.axlevel >= 6) return(1);
 119         else return(0);
 120         }
 121
 122
 123 /*
 124  * Is the user currently logged in an Aide *or* the room aide for this room?
 125  */
 126 int is_room_aide(void) {
 127         if ( (CC->usersupp.axlevel >= 6)
 128                 || (CC->quickroom.QRroomaide == CC->usersupp.usernum) ) return(1);
 129         else return(0);
 130         }
 131
 132 /*
 133  * getuserbynumber()  -  get user by number
 134  *                       returns 0 if user was found
 135  */
 136 int getuserbynumber(struct usersupp *usbuf, long int number)
 137 {
 138         struct cdbdata *cdbus;
 139
 140         cdb_rewind(CDB_USERSUPP);
 141
 142         while(cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 143                 bzero(usbuf, sizeof(struct usersupp));
 144                 memcpy(usbuf, cdbus->ptr, cdbus->len);
 145                 cdb_free(cdbus);
 146                 if (usbuf->usernum == number) {
 147                         return(0);
 148                         }
 149                 }
 150         return(-1);
 151         }
 152
 153
 154 /*
 155  * USER cmd
 156  */
 157 void cmd_user(char *cmdbuf)
 158 {
 159         char username[256];
 160         char autoname[256];
 161         int found_user = 0;
 162         struct passwd *p;
 163         int a;
 164
 165         extract(username,cmdbuf,0);
 166         username[25] = 0;
 167         strproc(username);
 168
 169         if ((CC->logged_in)) {
 170                 cprintf("%d Already logged in.\n",ERROR);
 171                 return;
 172                 }
 173
 174         found_user = getuser(&CC->usersupp,username);
 175         if (found_user != 0) {
 176                 p = (struct passwd *)getpwnam(username);
 177                 if (p!=NULL) {
 178                         strcpy(autoname,p->pw_gecos);
 179                         for (a=0; a<strlen(autoname); ++a)
 180                                 if (autoname[a]==',') autoname[a]=0;
 181                         found_user = getuser(&CC->usersupp,autoname);
 182                         }
 183                 }
 184         if (found_user == 0) {
 185                 if (((CC->nologin)) && (CC->usersupp.axlevel < 6)) {
 186                         cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 187                         ERROR+MAX_SESSIONS_EXCEEDED,
 188                         config.c_nodename,config.c_maxsessions);
 189                         }
 190                 else {
 191                         strcpy(CC->curr_user,CC->usersupp.fullname);
 192                         cprintf("%d Password required for %s\n",
 193                                 MORE_DATA,CC->curr_user);
 194                         }
 195                 }
 196         else {
 197                 cprintf("%d %s not found.\n",ERROR,username);
 198                 }
 199         }
 200
 201
 202
 203 /*
 204  * session startup code which is common to both cmd_pass() and cmd_newu()
 205  */
 206 void session_startup(void) {
 207         int a;
 208         struct quickroom qr;
 209
 210         syslog(LOG_NOTICE,"user <%s> logged in",CC->curr_user);
 211         hook_user_login(CC->cs_pid, CC->curr_user);
 212         lgetuser(&CC->usersupp,CC->curr_user);
 213         ++(CC->usersupp.timescalled);
 214         /* <bc> */
 215         CC->fake_username[0] = '\0';
 216         CC->fake_postname[0] = '\0';
 217         CC->fake_hostname[0] = '\0';
 218         CC->fake_roomname[0] = '\0';
 219         CC->last_pager[0] = '\0';
 220         /* <bc> */
 221         time(&CC->usersupp.lastcall);
 222
 223         /* If this user's name is the name of the system administrator
 224          * (as specified in setup), automatically assign access level 6.
 225          */
 226         if (!strucmp(CC->usersupp.fullname, config.c_sysadm)) {
 227                 CC->usersupp.axlevel = 6;
 228                 }
 229
 230 /* A room's generation number changes each time it is recycled. Users are kept
 231  * out of private rooms or forget rooms by matching the generation numbers. To
 232  * avoid an accidental matchup, unmatched numbers are set to -1 here.
 233  */
 234         for (a=0; a<MAXROOMS; ++a) {
 235                 getroom(&qr,a);
 236                 if (CC->usersupp.generation[a] != qr.QRgen)
 237                                         CC->usersupp.generation[a]=(-1);
 238                 if (CC->usersupp.forget[a] != qr.QRgen)
 239                                         CC->usersupp.forget[a]=(-1);
 240                 }
 241
 242         lputuser(&CC->usersupp,CC->curr_user);
 243
 244         cprintf("%d %s|%d|%d|%d|%u|%ld\n",OK,CC->usersupp.fullname,CC->usersupp.axlevel,
 245                 CC->usersupp.timescalled,CC->usersupp.posted,CC->usersupp.flags,
 246                 CC->usersupp.usernum);
 247         usergoto(0,0);          /* Enter the lobby */
 248         rec_log(CL_LOGIN,CC->curr_user);
 249         }
 250
 251
 252
 253 /*
 254  * misc things to be taken care of when a user is logged out
 255  */
 256 void logout(struct CitContext *who)
 257 {
 258         who->logged_in = 0;
 259         if (who->download_fp != NULL) {
 260                 fclose(who->download_fp);
 261                 who->download_fp = NULL;
 262                 }
 263         if (who->upload_fp != NULL) {
 264                 abort_upl(who);
 265                 }
 266         }
 267
 268
 269 void cmd_pass(char *buf)
 270 {
 271         char password[256];
 272         int code;
 273         struct passwd *p;
 274
 275         extract(password,buf,0);
 276
 277         if ((CC->logged_in)) {
 278                 cprintf("%d Already logged in.\n",ERROR);
 279                 return;
 280                 }
 281         if (!strcmp(CC->curr_user,"")) {
 282                 cprintf("%d You must send a name with USER first.\n",ERROR);
 283                 return;
 284                 }
 285         if (getuser(&CC->usersupp,CC->curr_user)) {
 286                 cprintf("%d Can't find user record!\n",ERROR+INTERNAL_ERROR);
 287                 return;
 288                 }
 289
 290         code = (-1);
 291         if (CC->usersupp.USuid == BBSUID) {
 292                 strproc(password);
 293                 pwcrypt(CC->usersupp.password,config.c_pwcrypt);
 294                 strproc(CC->usersupp.password);
 295                 code = strucmp(CC->usersupp.password,password);
 296                 pwcrypt(CC->usersupp.password,config.c_pwcrypt);
 297                 }
 298         else {
 299                 p = (struct passwd *)getpwuid(CC->usersupp.USuid);
 300 #ifdef ENABLE_AUTOLOGIN
 301                 if (p!=NULL) {
 302                         if (!strcmp(p->pw_passwd,
 303                            (char *)crypt(password,p->pw_passwd))) {
 304                                 code = 0;
 305                                 lgetuser(&CC->usersupp, CC->curr_user);
 306                                 strcpy(CC->usersupp.password, password);
 307                                 pwcrypt(CC->usersupp.password, config.c_pwcrypt);
 308                                 lputuser(&CC->usersupp, CC->curr_user);
 309                                 }
 310                         }
 311 #endif
 312                 }
 313
 314         if (!code) {
 315                 (CC->logged_in) = 1;
 316                 session_startup();
 317                 }
 318         else {
 319                 cprintf("%d Wrong password.\n",ERROR);
 320                 rec_log(CL_BADPW,CC->curr_user);
 321                 }
 322         }
 323
 324
 325 /*
 326  * purge related files when removing or overwriting a user record
 327  */
 328 void purge_user(char *pname) {
 329         char filename[64];
 330         struct usersupp usbuf;
 331         int a;
 332
 333         if (getuser(&usbuf, pname) != 0) {
 334                 lprintf(5, "Cannot purge user <%s> - not found\n", pname);
 335                 return;
 336                 }
 337
 338         /* delete any messages in the user's mailbox */
 339         for (a=0; a<MAILSLOTS; ++a) {
 340                 if (usbuf.mailnum[a] > 0L) {
 341                         cdb_delete(CDB_MSGMAIN, &usbuf.mailnum[a],
 342                                         sizeof(long));
 343                         }
 344                 }
 345
 346         /* remove the user's bio file */
 347         sprintf(filename, "./bio/%ld", usbuf.usernum);
 348         unlink(filename);
 349
 350         /* remove the user's picture */
 351         sprintf(filename, "./userpics/%ld.gif", usbuf.usernum);
 352         unlink(filename);
 353
 354         }
 355
 356
 357 /*
 358  * create_user()  -  back end processing to create a new user
 359  */
 360 int create_user(char *newusername)
 361 {
 362         struct usersupp usbuf;
 363         int a,file;
 364         long aa;
 365         struct passwd *p = NULL;
 366         char username[64];
 367
 368         strcpy(username, newusername);
 369         strproc(username);
 370
 371 #ifdef ENABLE_AUTOLOGIN
 372         p = (struct passwd *)getpwnam(username);
 373 #endif
 374         if (p != NULL) {
 375                 strcpy(username, p->pw_gecos);
 376                 for (a=0; a<strlen(username); ++a) {
 377                         if (username[a] == ',') username[a] = 0;
 378                         }
 379                 CC->usersupp.USuid = p->pw_uid;
 380                 }
 381         else {
 382                 CC->usersupp.USuid = BBSUID;
 383                 }
 384
 385         if (!getuser(&usbuf,username)) {
 386                 return(ERROR+ALREADY_EXISTS);
 387                 }
 388
 389         strcpy(CC->curr_user,username);
 390         strcpy(CC->usersupp.fullname,username);
 391         (CC->logged_in) = 1;
 392
 393         for (a=0; a<MAXROOMS; ++a) {
 394                 CC->usersupp.lastseen[a]=0L;
 395                 CC->usersupp.generation[a]=(-1);
 396                 CC->usersupp.forget[a]=(-1);
 397                 }
 398         for (a=0; a<MAILSLOTS; ++a) {
 399                 CC->usersupp.mailnum[a]=0L;
 400                 }
 401         strcpy(CC->usersupp.password,"");
 402
 403         /* These are the default flags on new accounts */
 404         CC->usersupp.flags =
 405                 US_NEEDVALID|US_LASTOLD|US_DISAPPEAR|US_PAGINATOR|US_FLOORS;
 406
 407         CC->usersupp.timescalled = 0;
 408         CC->usersupp.posted = 0;
 409         CC->usersupp.axlevel = INITAX;
 410         CC->usersupp.USscreenwidth = 80;
 411         CC->usersupp.USscreenheight = 24;
 412         time(&CC->usersupp.lastcall);
 413         strcpy(CC->usersupp.USname, "");
 414         strcpy(CC->usersupp.USaddr, "");
 415         strcpy(CC->usersupp.UScity, "");
 416         strcpy(CC->usersupp.USstate, "");
 417         strcpy(CC->usersupp.USzip, "");
 418         strcpy(CC->usersupp.USphone, "");
 419
 420         /* fetch a new user number */
 421         CC->usersupp.usernum = get_new_user_number();
 422
 423         if (CC->usersupp.usernum == 1L) {
 424                 CC->usersupp.axlevel = 6;
 425                 }
 426
 427         /* add user to userlog */
 428         putuser(&CC->usersupp,CC->curr_user);
 429         if (getuser(&CC->usersupp,CC->curr_user)) {
 430                 return(ERROR+INTERNAL_ERROR);
 431                 }
 432         rec_log(CL_NEWUSER,CC->curr_user);
 433         return(0);
 434         }
 435
 436
 437
 438
 439 /*
 440  * cmd_newu()  -  create a new user account
 441  */
 442 void cmd_newu(char *cmdbuf)
 443 {
 444         int a;
 445         char username[256];
 446
 447         if ((CC->logged_in)) {
 448                 cprintf("%d Already logged in.\n",ERROR);
 449                 return;
 450                 }
 451
 452         if ((CC->nologin)) {
 453                 cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 454                 ERROR+MAX_SESSIONS_EXCEEDED,
 455                 config.c_nodename,config.c_maxsessions);
 456                 }
 457
 458         extract(username,cmdbuf,0);
 459         username[25] = 0;
 460         strproc(username);
 461
 462         if (strlen(username)==0) {
 463                 cprintf("%d You must supply a user name.\n",ERROR);
 464                 return;
 465                 }
 466
 467         a = create_user(username);
 468         if ((!strucmp(username, "bbs")) ||
 469             (!strucmp(username, "new")) ||
 470             (!strucmp(username, ".")))
 471         {
 472            cprintf("%d '%s' is an invalid login name.\n", ERROR);
 473            return;
 474         }
 475         if (a==ERROR+ALREADY_EXISTS) {
 476                 cprintf("%d '%s' already exists.\n",
 477                         ERROR+ALREADY_EXISTS,username);
 478                 return;
 479                 }
 480         else if (a==ERROR+INTERNAL_ERROR) {
 481                 cprintf("%d Internal error - user record disappeared?\n",
 482                         ERROR+INTERNAL_ERROR);
 483                 return;
 484                 }
 485         else if (a==0) {
 486                 session_startup();
 487                 }
 488         else {
 489                 cprintf("%d unknown error\n",ERROR);
 490                 }
 491         rec_log(CL_NEWUSER,CC->curr_user);
 492         }
 493
 494
 495
 496 /*
 497  * set password
 498  */
 499 void cmd_setp(char *new_pw)
 500 {
 501         if (!(CC->logged_in)) {
 502                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 503                 return;
 504                 }
 505         if (CC->usersupp.USuid != BBSUID) {
 506                 cprintf("%d Not allowed.  Use the 'passwd' command.\n",ERROR);
 507                 return;
 508                 }
 509         strproc(new_pw);
 510         if (strlen(new_pw)==0) {
 511                 cprintf("%d Password unchanged.\n",OK);
 512                 return;
 513                 }
 514         lgetuser(&CC->usersupp,CC->curr_user);
 515         strcpy(CC->usersupp.password,new_pw);
 516         pwcrypt(CC->usersupp.password,config.c_pwcrypt);
 517         lputuser(&CC->usersupp,CC->curr_user);
 518         cprintf("%d Password changed.\n",OK);
 519         rec_log(CL_PWCHANGE,CC->curr_user);
 520         }
 521
 522 /*
 523  * get user parameters
 524  */
 525 void cmd_getu(void) {
 526         if (!(CC->logged_in)) {
 527                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 528                 return;
 529                 }
 530         getuser(&CC->usersupp,CC->curr_user);
 531         cprintf("%d %d|%d|%d\n",OK,CC->usersupp.USscreenwidth,
 532                 CC->usersupp.USscreenheight,(CC->usersupp.flags & US_USER_SET));
 533         }
 534
 535 /*
 536  * set user parameters
 537  */
 538 void cmd_setu(char *new_parms)
 539 {
 540
 541         if (num_parms(new_parms)!=3) {
 542                 cprintf("%d Usage error.\n",ERROR);
 543                 return;
 544                 }
 545         if (!(CC->logged_in)) {
 546                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 547                 return;
 548                 }
 549         lgetuser(&CC->usersupp,CC->curr_user);
 550         CC->usersupp.USscreenwidth = extract_int(new_parms,0);
 551         CC->usersupp.USscreenheight = extract_int(new_parms,1);
 552         CC->usersupp.flags = CC->usersupp.flags & (~US_USER_SET);
 553         CC->usersupp.flags = CC->usersupp.flags |
 554                 (extract_int(new_parms,2) & US_USER_SET);
 555         lputuser(&CC->usersupp,CC->curr_user);
 556         cprintf("%d Ok\n",OK);
 557         }
 558
 559 /*
 560  * set last read pointer
 561  */
 562 void cmd_slrp(char *new_ptr)
 563 {
 564         long newlr;
 565
 566         if (!(CC->logged_in)) {
 567                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 568                 return;
 569                 }
 570
 571         if (CC->curr_rm < 0) {
 572                 cprintf("%d No current room.\n",ERROR);
 573                 return;
 574                 }
 575
 576         if (!struncmp(new_ptr,"highest",7)) {
 577                 newlr = CC->quickroom.QRhighest;
 578                 }
 579         else {
 580                 newlr = atol(new_ptr);
 581                 }
 582
 583         lgetuser(&CC->usersupp, CC->curr_user);
 584         CC->usersupp.lastseen[CC->curr_rm] = newlr;
 585         lputuser(&CC->usersupp, CC->curr_user);
 586         cprintf("%d %ld\n",OK,newlr);
 587         }
 588
 589
 590 /*
 591  * INVT and KICK commands
 592  */
 593 void cmd_invt_kick(char *iuser, int op)
 594                         /* user name */
 595         {               /* 1 = invite, 0 = kick out */
 596         struct usersupp USscratch;
 597         char bbb[256];
 598
 599         if (!(CC->logged_in)) {
 600                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 601                 return;
 602                 }
 603
 604         if (CC->curr_rm < 0) {
 605                 cprintf("%d No current room.\n",ERROR);
 606                 return;
 607                 }
 608
 609         if (is_room_aide()==0) {
 610                 cprintf("%d Higher access required.\n",
 611                         ERROR+HIGHER_ACCESS_REQUIRED);
 612                 return;
 613                 }
 614
 615         if ( (op==1) && ((CC->quickroom.QRflags&QR_PRIVATE)==0) ) {
 616                 cprintf("%d Not a private room.\n",ERROR+NOT_HERE);
 617                 return;
 618                 }
 619
 620         if (lgetuser(&USscratch,iuser)!=0) {
 621                 cprintf("%d No such user.\n",ERROR);
 622                 return;
 623                 }
 624
 625         if (op==1) {
 626                 USscratch.generation[CC->curr_rm]=CC->quickroom.QRgen;
 627                 USscratch.forget[CC->curr_rm]=(-1);
 628                 }
 629
 630         if (op==0) {
 631                 USscratch.generation[CC->curr_rm]=(-1);
 632                 USscratch.forget[CC->curr_rm]=CC->quickroom.QRgen;
 633                 }
 634
 635         lputuser(&USscratch,iuser);
 636
 637         /* post a message in Aide> saying what we just did */
 638         sprintf(bbb,"%s %s %s> by %s",
 639                 iuser,
 640                 ((op == 1) ? "invited to" : "kicked out of"),
 641                 CC->quickroom.QRname,
 642                 CC->usersupp.fullname);
 643         aide_message(bbb);
 644
 645         if ((op==0)&&((CC->quickroom.QRflags&QR_PRIVATE)==0)) {
 646                 cprintf("%d Ok. (Not a private room, <Z>ap effect only)\n",OK);
 647                 }
 648         else {
 649                 cprintf("%d Ok.\n",OK);
 650                 }
 651         return;
 652         }
 653
 654
 655 /*
 656  * forget (Zap) the current room
 657  */
 658 void cmd_forg(void) {
 659         if (!(CC->logged_in)) {
 660                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 661                 return;
 662                 }
 663
 664         if (CC->curr_rm < 0) {
 665                 cprintf("%d No current room.\n",ERROR);
 666                 return;
 667                 }
 668
 669         if (CC->curr_rm < 3) {
 670                 cprintf("%d You cannot forget this room.\n",ERROR+NOT_HERE);
 671                 return;
 672                 }
 673
 674         if (is_aide()) {
 675                 cprintf("%d Aides cannot forget rooms.\n",ERROR);
 676                 return;
 677                 }
 678
 679         lgetuser(&CC->usersupp,CC->curr_user);
 680         CC->usersupp.forget[CC->curr_rm] = CC->quickroom.QRgen;
 681         CC->usersupp.generation[CC->curr_rm] = (-1);
 682         lputuser(&CC->usersupp,CC->curr_user);
 683         cprintf("%d Ok\n",OK);
 684         CC->curr_rm = (-1);
 685         }
 686
 687 /*
 688  * Get Next Unregistered User
 689  */
 690 void cmd_gnur(void) {
 691         struct cdbdata *cdbus;
 692         struct usersupp usbuf;
 693         FILE *fp;
 694
 695         if (!(CC->logged_in)) {
 696                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 697                 return;
 698                 }
 699
 700         if (CC->usersupp.axlevel < 6) {
 701                 cprintf("%d Higher access required.\n",
 702                         ERROR+HIGHER_ACCESS_REQUIRED);
 703                 return;
 704                 }
 705
 706         if ((CitControl.MMflags&MM_VALID)==0) {
 707                 cprintf("%d There are no unvalidated users.\n",OK);
 708                 return;
 709                 }
 710
 711         /* There are unvalidated users.  Traverse the usersupp database,
 712          * and return the first user we find that needs validation.
 713          */
 714         cdb_rewind(CDB_USERSUPP);
 715         while (cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 716                 bzero(&usbuf, sizeof(struct usersupp));
 717                 memcpy(&usbuf, cdbus->ptr, cdbus->len);
 718                 cdb_free(cdbus);
 719                 if ((usbuf.flags & US_NEEDVALID)
 720                    &&(usbuf.axlevel > 0)) {
 721                         cprintf("%d %s\n",MORE_DATA,usbuf.fullname);
 722                         return;
 723                         }
 724                 }
 725
 726         /* If we get to this point, there are no more unvalidated users.
 727          * Therefore we clear the "users need validation" flag.
 728          */
 729
 730         begin_critical_section(S_CONTROL);
 731         get_control();
 732         CitControl.MMflags = CitControl.MMflags&(~MM_VALID);
 733         put_control();
 734         end_critical_section(S_CONTROL);
 735         cprintf("%d *** End of registration.\n",OK);
 736
 737
 738         }
 739
 740
 741 /*
 742  * get registration info for a user
 743  */
 744 void cmd_greg(char *who)
 745 {
 746         struct usersupp usbuf;
 747         int a,b;
 748         char pbuf[32];
 749
 750         if (!(CC->logged_in)) {
 751                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 752                 return;
 753                 }
 754
 755         if (!strucmp(who,"_SELF_")) strcpy(who,CC->curr_user);
 756
 757         if ((CC->usersupp.axlevel < 6) && (strucmp(who,CC->curr_user))) {
 758                 cprintf("%d Higher access required.\n",
 759                         ERROR+HIGHER_ACCESS_REQUIRED);
 760                 return;
 761                 }
 762
 763         if (getuser(&usbuf,who) != 0) {
 764                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,who);
 765                 return;
 766                 }
 767
 768         cprintf("%d %s\n",LISTING_FOLLOWS,usbuf.fullname);
 769         cprintf("%ld\n",usbuf.usernum);
 770         pwcrypt(usbuf.password,PWCRYPT);
 771         cprintf("%s\n",usbuf.password);
 772         cprintf("%s\n",usbuf.USname);
 773         cprintf("%s\n",usbuf.USaddr);
 774         cprintf("%s\n%s\n%s\n",
 775                 usbuf.UScity,usbuf.USstate,usbuf.USzip);
 776         strcpy(pbuf,usbuf.USphone);
 777         usbuf.USphone[0]=0;
 778         for (a=0; a<strlen(pbuf); ++a) {
 779                 if ((pbuf[a]>='0')&&(pbuf[a]<='9')) {
 780                         b=strlen(usbuf.USphone);
 781                         usbuf.USphone[b]=pbuf[a];
 782                         usbuf.USphone[b+1]=0;
 783                         }
 784                 }
 785         while(strlen(usbuf.USphone)<10) {
 786                 strcpy(pbuf,usbuf.USphone);
 787                 strcpy(usbuf.USphone," ");
 788                 strcat(usbuf.USphone,pbuf);
 789                 }
 790
 791         cprintf("(%c%c%c) %c%c%c-%c%c%c%c\n",
 792                 usbuf.USphone[0],usbuf.USphone[1],
 793                 usbuf.USphone[2],usbuf.USphone[3],
 794                 usbuf.USphone[4],usbuf.USphone[5],
 795                 usbuf.USphone[6],usbuf.USphone[7],
 796                 usbuf.USphone[8],usbuf.USphone[9]);
 797
 798         cprintf("%d\n",usbuf.axlevel);
 799         cprintf("%s\n",usbuf.USemail);
 800         cprintf("000\n");
 801         }
 802
 803 /*
 804  * validate a user
 805  */
 806 void cmd_vali(char *v_args)
 807 {
 808         char user[256];
 809         int newax;
 810         struct usersupp userbuf;
 811
 812         extract(user,v_args,0);
 813         newax = extract_int(v_args,1);
 814
 815         if (!(CC->logged_in)) {
 816                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 817                 return;
 818                 }
 819
 820         if (CC->usersupp.axlevel < 6) {
 821                 cprintf("%d Higher access required.\n",
 822                         ERROR+HIGHER_ACCESS_REQUIRED);
 823                 return;
 824                 }
 825
 826         if (lgetuser(&userbuf,user)!=0) {
 827                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,user);
 828                 return;
 829                 }
 830
 831         userbuf.axlevel = newax;
 832         userbuf.flags = (userbuf.flags & ~US_NEEDVALID);
 833
 834         lputuser(&userbuf,user);
 835         cprintf("%d ok\n",OK);
 836         }
 837
 838
 839
 840 /*
 841  *  List users
 842  */
 843 void cmd_list(void) {
 844         struct usersupp usbuf;
 845         struct cdbdata *cdbus;
 846
 847         cdb_rewind(CDB_USERSUPP);
 848         cprintf("%d \n",LISTING_FOLLOWS);
 849
 850         while(cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 851                 bzero(&usbuf, sizeof(struct usersupp));
 852                 memcpy(&usbuf, cdbus->ptr, cdbus->len);
 853                 cdb_free(cdbus);
 854
 855             if (usbuf.axlevel > 0) {
 856                 if ((CC->usersupp.axlevel>=6)
 857                    ||((usbuf.flags&US_UNLISTED)==0)
 858                    ||((CC->internal_pgm))) {
 859                         cprintf("%s|%d|%ld|%ld|%d|%d|",
 860                                 usbuf.fullname,
 861                                 usbuf.axlevel,
 862                                 usbuf.usernum,
 863                                 usbuf.lastcall,
 864                                 usbuf.timescalled,
 865                                 usbuf.posted);
 866                         pwcrypt(usbuf.password,config.c_pwcrypt);
 867                         if (CC->usersupp.axlevel >= 6) cprintf("%s",usbuf.password);
 868                         cprintf("\n");
 869                         }
 870                     }
 871                 }
 872         cprintf("000\n");
 873         }
 874
 875 /*
 876  * enter registration info
 877  */
 878 void cmd_regi(void) {
 879         int a,b,c;
 880         FILE *fp;
 881         char buf[256];
 882
 883         char tmpname[256];
 884         char tmpaddr[256];
 885         char tmpcity[256];
 886         char tmpstate[256];
 887         char tmpzip[256];
 888         char tmpphone[256];
 889         char tmpemail[256];
 890
 891         if (!(CC->logged_in)) {
 892                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 893                 return;
 894                 }
 895
 896         strcpy(tmpname,"");
 897         strcpy(tmpaddr,"");
 898         strcpy(tmpcity,"");
 899         strcpy(tmpstate,"");
 900         strcpy(tmpzip,"");
 901         strcpy(tmpphone,"");
 902         strcpy(tmpemail,"");
 903
 904         cprintf("%d Send registration...\n",SEND_LISTING);
 905         a=0;
 906         while (client_gets(buf), strcmp(buf,"000")) {
 907                 if (a==0) strcpy(tmpname,buf);
 908                 if (a==1) strcpy(tmpaddr,buf);
 909                 if (a==2) strcpy(tmpcity,buf);
 910                 if (a==3) strcpy(tmpstate,buf);
 911                 if (a==4) {
 912                         for (c=0; c<strlen(buf); ++c) {
 913                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
 914                                         b=strlen(tmpzip);
 915                                         tmpzip[b]=buf[c];
 916                                         tmpzip[b+1]=0;
 917                                         }
 918                                 }
 919                         }
 920                 if (a==5) {
 921                         for (c=0; c<strlen(buf); ++c) {
 922                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
 923                                         b=strlen(tmpphone);
 924                                         tmpphone[b]=buf[c];
 925                                         tmpphone[b+1]=0;
 926                                         }
 927                                 }
 928                         }
 929                 if (a==6) strncpy(tmpemail,buf,31);
 930                 ++a;
 931                 }
 932
 933         tmpname[29]=0;
 934         tmpaddr[24]=0;
 935         tmpcity[14]=0;
 936         tmpstate[2]=0;
 937         tmpzip[9]=0;
 938         tmpphone[10]=0;
 939         tmpemail[31]=0;
 940
 941         lgetuser(&CC->usersupp,CC->curr_user);
 942         strcpy(CC->usersupp.USname,tmpname);
 943         strcpy(CC->usersupp.USaddr,tmpaddr);
 944         strcpy(CC->usersupp.UScity,tmpcity);
 945         strcpy(CC->usersupp.USstate,tmpstate);
 946         strcpy(CC->usersupp.USzip,tmpzip);
 947         strcpy(CC->usersupp.USphone,tmpphone);
 948         strcpy(CC->usersupp.USemail,tmpemail);
 949         CC->usersupp.flags=(CC->usersupp.flags|US_REGIS|US_NEEDVALID);
 950         lputuser(&CC->usersupp,CC->curr_user);
 951
 952         /* set global flag calling for validation */
 953         begin_critical_section(S_CONTROL);
 954         get_control();
 955         CitControl.MMflags = CitControl.MMflags | MM_VALID ;
 956         put_control();
 957         end_critical_section(S_CONTROL);
 958         cprintf("%d *** End of registration.\n",OK);
 959         }
 960
 961
 962 /*
 963  * assorted info we need to check at login
 964  */
 965 void cmd_chek(void) {
 966         int mail = 0;
 967         int regis = 0;
 968         int vali = 0;
 969         int a,file;
 970
 971         if (!(CC->logged_in)) {
 972                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 973                 return;
 974                 }
 975
 976         getuser(&CC->usersupp,CC->curr_user); /* no lock is needed here */
 977         if ((REGISCALL!=0)&&((CC->usersupp.flags&US_REGIS)==0)) regis = 1;
 978
 979         if (CC->usersupp.axlevel >= 6) {
 980                 get_control();
 981                 if (CitControl.MMflags&MM_VALID) vali = 1;
 982                 }
 983
 984         mail=0;                         /* check for mail */
 985         for (a=0; a<MAILSLOTS; ++a)
 986                 if ((CC->usersupp.mailnum[a])>(CC->usersupp.lastseen[1]))
 987                         ++mail;
 988
 989         cprintf("%d %d|%d|%d\n",OK,mail,regis,vali);
 990         }
 991
 992
 993 /*
 994  * check to see if a user exists
 995  */
 996 void cmd_qusr(char *who)
 997 {
 998         struct usersupp usbuf;
 999
1000         if (getuser(&usbuf,who) == 0) {
1001                 cprintf("%d %s\n",OK,usbuf.fullname);
1002                 }
1003         else {
1004                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1005                 }
1006         }
1007
1008
1009 /*
1010  * enter user bio
1011  */
1012 void cmd_ebio(void) {
1013         char buf[256];
1014         FILE *fp;
1015
1016         if (!(CC->logged_in)) {
1017                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1018                 return;
1019                 }
1020
1021         sprintf(buf,"./bio/%ld",CC->usersupp.usernum);
1022         fp = fopen(buf,"w");
1023         if (fp == NULL) {
1024                 cprintf("%d Cannot create file\n",ERROR);
1025                 return;
1026                 }
1027         cprintf("%d  \n",SEND_LISTING);
1028         while(client_gets(buf), strcmp(buf,"000")) {
1029                 fprintf(fp,"%s\n",buf);
1030                 }
1031         fclose(fp);
1032         }
1033
1034 /*
1035  * read user bio
1036  */
1037 void cmd_rbio(char *cmdbuf)
1038 {
1039         struct usersupp ruser;
1040         char buf[256];
1041         FILE *fp;
1042
1043         extract(buf,cmdbuf,0);
1044         if (getuser(&ruser,buf)!=0) {
1045                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1046                 return;
1047                 }
1048         sprintf(buf,"./bio/%ld",ruser.usernum);
1049
1050         fp = fopen(buf,"r");
1051         if (fp == NULL) {
1052                 cprintf("%d %s has no bio on file.\n",
1053                         ERROR+FILE_NOT_FOUND,ruser.fullname);
1054                 return;
1055                 }
1056         cprintf("%d  \n",LISTING_FOLLOWS);
1057         while (fgets(buf,256,fp)!=NULL) cprintf("%s",buf);
1058         fclose(fp);
1059         cprintf("000\n");
1060         }
1061
1062 /*
1063  * list of users who have entered bios
1064  */
1065 void cmd_lbio(void) {
1066         char buf[256];
1067         FILE *ls;
1068         struct usersupp usbuf;
1069
1070         ls=popen("cd ./bio; ls","r");
1071         if (ls==NULL) {
1072                 cprintf("%d Cannot open listing.\n",ERROR+FILE_NOT_FOUND);
1073                 return;
1074                 }
1075
1076         cprintf("%d\n",LISTING_FOLLOWS);
1077         while (fgets(buf,255,ls)!=NULL)
1078                 if (getuserbynumber(&usbuf,atol(buf))==0)
1079                         cprintf("%s\n",usbuf.fullname);
1080         pclose(ls);
1081         cprintf("000\n");
1082         }