citadel/user_ops.c

   1 /* needed to properly enable crypt() stuff on some systems */
   2 #define _XOPEN_SOURCE
   3 /* needed for str[n]casecmp() on some systems if the above is defined */
   4 #define _XOPEN_SOURCE_EXTENDED
   5
   6 #include <stdlib.h>
   7 #include <unistd.h>
   8 #include <stdio.h>
   9 #include <fcntl.h>
  10 #include <signal.h>
  11 #include <pwd.h>
  12 #include <sys/types.h>
  13 #include <sys/time.h>
  14 #include <string.h>
  15 #include <syslog.h>
  16 #include <pthread.h>
  17 #include "citadel.h"
  18 #include "server.h"
  19 #include "proto.h"
  20
  21 extern struct config config;
  22
  23
  24 /*
  25  * hash()  -  hash table function for user lookup
  26  */
  27 int hash(char *str)
  28 {
  29         int h = 0;
  30         int i;
  31
  32         for (i=0; i<strlen(str); ++i) h=h+((i+1)*tolower(str[i]));
  33         return(h);
  34         }
  35
  36
  37 /*
  38  * getuser()  -  retrieve named user into supplied buffer.
  39  *               returns 0 on success
  40  */
  41 int getuser(struct usersupp *usbuf, char name[]) {
  42
  43         char lowercase_name[32];
  44         int a;
  45         struct cdbdata *cdbus;
  46
  47         bzero(usbuf, sizeof(struct usersupp));
  48         for (a=0; a<=strlen(name); ++a) {
  49                 lowercase_name[a] = tolower(name[a]);
  50                 }
  51
  52         cdbus = cdb_fetch(CDB_USERSUPP, lowercase_name, strlen(lowercase_name));
  53         if (cdbus == NULL) {
  54                 return(1);      /* user not found */
  55                 }
  56
  57         memcpy(usbuf, cdbus->ptr,
  58                 ( (cdbus->len > sizeof(struct usersupp)) ?
  59                 sizeof(struct usersupp) : cdbus->len) );
  60         cdb_free(cdbus);
  61         return(0);
  62         }
  63
  64
  65 /*
  66  * lgetuser()  -  same as getuser() but locks the record
  67  */
  68 int lgetuser(struct usersupp *usbuf, char *name)
  69 {
  70         int retcode;
  71
  72         retcode = getuser(usbuf,name);
  73         if (retcode == 0) {
  74                 begin_critical_section(S_USERSUPP);
  75                 }
  76         return(retcode);
  77         }
  78
  79
  80 /*
  81  * putuser()  -  write user buffer into the correct place on disk
  82  */
  83 void putuser(struct usersupp *usbuf, char *name)
  84 {
  85         char lowercase_name[32];
  86         int a;
  87
  88         for (a=0; a<=strlen(name); ++a) {
  89                 lowercase_name[a] = tolower(name[a]);
  90                 }
  91
  92         cdb_store(CDB_USERSUPP,
  93                 lowercase_name, strlen(lowercase_name),
  94                 usbuf, sizeof(struct usersupp));
  95
  96         }
  97
  98
  99 /*
 100  * lputuser()  -  same as putuser() but locks the record
 101  */
 102 void lputuser(struct usersupp *usbuf, char *name) {
 103         putuser(usbuf,name);
 104         end_critical_section(S_USERSUPP);
 105         }
 106
 107
 108 /*
 109  * Is the user currently logged in an Aide?
 110  */
 111 int is_aide(void) {
 112         if (CC->usersupp.axlevel >= 6) return(1);
 113         else return(0);
 114         }
 115
 116
 117 /*
 118  * Is the user currently logged in an Aide *or* the room aide for this room?
 119  */
 120 int is_room_aide(void) {
 121         if ( (CC->usersupp.axlevel >= 6)
 122            || (CC->quickroom.QRroomaide == CC->usersupp.usernum) ) {
 123                 return(1);
 124                 }
 125         else {
 126                 return(0);
 127                 }
 128         }
 129
 130 /*
 131  * getuserbynumber()  -  get user by number
 132  *                       returns 0 if user was found
 133  */
 134 int getuserbynumber(struct usersupp *usbuf, long int number)
 135 {
 136         struct cdbdata *cdbus;
 137
 138         cdb_rewind(CDB_USERSUPP);
 139
 140         while(cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 141                 bzero(usbuf, sizeof(struct usersupp));
 142                 memcpy(usbuf, cdbus->ptr,
 143                         ( (cdbus->len > sizeof(struct usersupp)) ?
 144                         sizeof(struct usersupp) : 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         CC->fake_username[0] = '\0';
 215         CC->fake_postname[0] = '\0';
 216         CC->fake_hostname[0] = '\0';
 217         CC->fake_roomname[0] = '\0';
 218         CC->last_pager[0] = '\0';
 219         time(&CC->usersupp.lastcall);
 220
 221         /* If this user's name is the name of the system administrator
 222          * (as specified in setup), automatically assign access level 6.
 223          */
 224         if (!strcasecmp(CC->usersupp.fullname, config.c_sysadm)) {
 225                 CC->usersupp.axlevel = 6;
 226                 }
 227
 228 /* A room's generation number changes each time it is recycled. Users are kept
 229  * out of private rooms or forget rooms by matching the generation numbers. To
 230  * avoid an accidental matchup, unmatched numbers are set to -1 here.
 231  */
 232         for (a=0; a<MAXROOMS; ++a) {
 233                 getroom(&qr,a);
 234                 if (CC->usersupp.generation[a] != qr.QRgen)
 235                                         CC->usersupp.generation[a]=(-1);
 236                 if (CC->usersupp.forget[a] != qr.QRgen)
 237                                         CC->usersupp.forget[a]=(-1);
 238                 }
 239
 240         lputuser(&CC->usersupp,CC->curr_user);
 241
 242         cprintf("%d %s|%d|%d|%d|%u|%ld\n",OK,CC->usersupp.fullname,CC->usersupp.axlevel,
 243                 CC->usersupp.timescalled,CC->usersupp.posted,CC->usersupp.flags,
 244                 CC->usersupp.usernum);
 245         usergoto(0,0);          /* Enter the lobby */
 246         rec_log(CL_LOGIN,CC->curr_user);
 247         }
 248
 249
 250
 251 /*
 252  * misc things to be taken care of when a user is logged out
 253  */
 254 void logout(struct CitContext *who)
 255 {
 256         who->logged_in = 0;
 257         if (who->download_fp != NULL) {
 258                 fclose(who->download_fp);
 259                 who->download_fp = NULL;
 260                 }
 261         if (who->upload_fp != NULL) {
 262                 abort_upl(who);
 263                 }
 264         }
 265
 266
 267 void cmd_pass(char *buf)
 268 {
 269         char password[256];
 270         int code;
 271         struct passwd *p;
 272
 273         extract(password,buf,0);
 274
 275         if ((CC->logged_in)) {
 276                 cprintf("%d Already logged in.\n",ERROR);
 277                 return;
 278                 }
 279         if (!strcmp(CC->curr_user,"")) {
 280                 cprintf("%d You must send a name with USER first.\n",ERROR);
 281                 return;
 282                 }
 283         if (getuser(&CC->usersupp,CC->curr_user)) {
 284                 cprintf("%d Can't find user record!\n",ERROR+INTERNAL_ERROR);
 285                 return;
 286                 }
 287
 288         code = (-1);
 289         if (CC->usersupp.USuid == BBSUID) {
 290                 strproc(password);
 291                 strproc(CC->usersupp.password);
 292                 code = strcasecmp(CC->usersupp.password,password);
 293                 }
 294         else {
 295                 p = (struct passwd *)getpwuid(CC->usersupp.USuid);
 296 #ifdef ENABLE_AUTOLOGIN
 297                 if (p!=NULL) {
 298                         if (!strcmp(p->pw_passwd,
 299                            (char *)crypt(password,p->pw_passwd))) {
 300                                 code = 0;
 301                                 lgetuser(&CC->usersupp, CC->curr_user);
 302                                 strcpy(CC->usersupp.password, password);
 303                                 lputuser(&CC->usersupp, CC->curr_user);
 304                                 }
 305                         }
 306 #endif
 307                 }
 308
 309         if (!code) {
 310                 (CC->logged_in) = 1;
 311                 session_startup();
 312                 }
 313         else {
 314                 cprintf("%d Wrong password.\n",ERROR);
 315                 rec_log(CL_BADPW,CC->curr_user);
 316                 }
 317         }
 318
 319
 320 /*
 321  * purge related files when removing or overwriting a user record
 322  */
 323 void purge_user(char *pname) {
 324         char filename[64];
 325         struct usersupp usbuf;
 326         int a;
 327         struct cdbdata *cdbmb;
 328         long *mailbox;
 329         int num_mails;
 330
 331         if (getuser(&usbuf, pname) != 0) {
 332                 lprintf(5, "Cannot purge user <%s> - not found\n", pname);
 333                 return;
 334                 }
 335
 336         /* delete any messages in the user's mailbox */
 337         cdbmb = cdb_fetch(CDB_MAILBOXES, &usbuf.usernum, sizeof(long));
 338         if (cdbmb != NULL) {
 339                 num_mails = cdbmb->len / sizeof(long);
 340                 mailbox = (long *) cdbmb->ptr;
 341                 if (num_mails > 0) for (a=0; a<num_mails; ++a) {
 342                         cdb_delete(CDB_MSGMAIN, &mailbox[a], sizeof(long));
 343                         }
 344                 cdb_free(cdbmb);
 345                 /* now delete the mailbox itself */
 346                 cdb_delete(CDB_MAILBOXES, &usbuf.usernum, sizeof(long));
 347                 }
 348
 349
 350         /* delete the userlog entry */
 351         cdb_delete(CDB_USERSUPP, pname, strlen(pname));
 352
 353         /* remove the user's bio file */
 354         sprintf(filename, "./bio/%ld", usbuf.usernum);
 355         unlink(filename);
 356
 357         /* remove the user's picture */
 358         sprintf(filename, "./userpics/%ld.gif", usbuf.usernum);
 359         unlink(filename);
 360
 361         }
 362
 363
 364 /*
 365  * create_user()  -  back end processing to create a new user
 366  */
 367 int create_user(char *newusername)
 368 {
 369         struct usersupp usbuf;
 370         int a;
 371         struct passwd *p = NULL;
 372         char username[64];
 373
 374         strcpy(username, newusername);
 375         strproc(username);
 376
 377 #ifdef ENABLE_AUTOLOGIN
 378         p = (struct passwd *)getpwnam(username);
 379 #endif
 380         if (p != NULL) {
 381                 strcpy(username, p->pw_gecos);
 382                 for (a=0; a<strlen(username); ++a) {
 383                         if (username[a] == ',') username[a] = 0;
 384                         }
 385                 CC->usersupp.USuid = p->pw_uid;
 386                 }
 387         else {
 388                 CC->usersupp.USuid = BBSUID;
 389                 }
 390
 391         if (!getuser(&usbuf,username)) {
 392                 return(ERROR+ALREADY_EXISTS);
 393                 }
 394
 395         strcpy(CC->curr_user,username);
 396         strcpy(CC->usersupp.fullname,username);
 397         (CC->logged_in) = 1;
 398
 399         for (a=0; a<MAXROOMS; ++a) {
 400                 CC->usersupp.lastseen[a]=0L;
 401                 CC->usersupp.generation[a]=(-1);
 402                 CC->usersupp.forget[a]=(-1);
 403                 }
 404         strcpy(CC->usersupp.password,"");
 405
 406         /* These are the default flags on new accounts */
 407         CC->usersupp.flags =
 408                 US_NEEDVALID|US_LASTOLD|US_DISAPPEAR|US_PAGINATOR|US_FLOORS;
 409
 410         CC->usersupp.timescalled = 0;
 411         CC->usersupp.posted = 0;
 412         CC->usersupp.axlevel = INITAX;
 413         CC->usersupp.USscreenwidth = 80;
 414         CC->usersupp.USscreenheight = 24;
 415         time(&CC->usersupp.lastcall);
 416         strcpy(CC->usersupp.USname, "");
 417         strcpy(CC->usersupp.USaddr, "");
 418         strcpy(CC->usersupp.UScity, "");
 419         strcpy(CC->usersupp.USstate, "");
 420         strcpy(CC->usersupp.USzip, "");
 421         strcpy(CC->usersupp.USphone, "");
 422
 423         /* fetch a new user number */
 424         CC->usersupp.usernum = get_new_user_number();
 425
 426         if (CC->usersupp.usernum == 1L) {
 427                 CC->usersupp.axlevel = 6;
 428                 }
 429
 430         /* add user to userlog */
 431         putuser(&CC->usersupp,CC->curr_user);
 432         if (getuser(&CC->usersupp,CC->curr_user)) {
 433                 return(ERROR+INTERNAL_ERROR);
 434                 }
 435         rec_log(CL_NEWUSER,CC->curr_user);
 436         return(0);
 437         }
 438
 439
 440
 441
 442 /*
 443  * cmd_newu()  -  create a new user account
 444  */
 445 void cmd_newu(char *cmdbuf)
 446 {
 447         int a;
 448         char username[256];
 449
 450         if ((CC->logged_in)) {
 451                 cprintf("%d Already logged in.\n",ERROR);
 452                 return;
 453                 }
 454
 455         if ((CC->nologin)) {
 456                 cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 457                 ERROR+MAX_SESSIONS_EXCEEDED,
 458                 config.c_nodename,config.c_maxsessions);
 459                 }
 460
 461         extract(username,cmdbuf,0);
 462         username[25] = 0;
 463         strproc(username);
 464
 465         if (strlen(username)==0) {
 466                 cprintf("%d You must supply a user name.\n",ERROR);
 467                 return;
 468                 }
 469
 470         a = create_user(username);
 471         if ((!strcasecmp(username, "bbs")) ||
 472             (!strcasecmp(username, "new")) ||
 473             (!strcasecmp(username, ".")))
 474         {
 475            cprintf("%d '%s' is an invalid login name.\n", ERROR);
 476            return;
 477         }
 478         if (a==ERROR+ALREADY_EXISTS) {
 479                 cprintf("%d '%s' already exists.\n",
 480                         ERROR+ALREADY_EXISTS,username);
 481                 return;
 482                 }
 483         else if (a==ERROR+INTERNAL_ERROR) {
 484                 cprintf("%d Internal error - user record disappeared?\n",
 485                         ERROR+INTERNAL_ERROR);
 486                 return;
 487                 }
 488         else if (a==0) {
 489                 session_startup();
 490                 }
 491         else {
 492                 cprintf("%d unknown error\n",ERROR);
 493                 }
 494         rec_log(CL_NEWUSER,CC->curr_user);
 495         }
 496
 497
 498
 499 /*
 500  * set password
 501  */
 502 void cmd_setp(char *new_pw)
 503 {
 504         if (!(CC->logged_in)) {
 505                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 506                 return;
 507                 }
 508         if (CC->usersupp.USuid != BBSUID) {
 509                 cprintf("%d Not allowed.  Use the 'passwd' command.\n",ERROR);
 510                 return;
 511                 }
 512         strproc(new_pw);
 513         if (strlen(new_pw)==0) {
 514                 cprintf("%d Password unchanged.\n",OK);
 515                 return;
 516                 }
 517         lgetuser(&CC->usersupp,CC->curr_user);
 518         strcpy(CC->usersupp.password,new_pw);
 519         lputuser(&CC->usersupp,CC->curr_user);
 520         cprintf("%d Password changed.\n",OK);
 521         rec_log(CL_PWCHANGE,CC->curr_user);
 522         }
 523
 524 /*
 525  * get user parameters
 526  */
 527 void cmd_getu(void) {
 528         if (!(CC->logged_in)) {
 529                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 530                 return;
 531                 }
 532         getuser(&CC->usersupp,CC->curr_user);
 533         cprintf("%d %d|%d|%d\n",
 534                 OK,
 535                 CC->usersupp.USscreenwidth,
 536                 CC->usersupp.USscreenheight,
 537                 (CC->usersupp.flags & US_USER_SET)
 538                 );
 539         }
 540
 541 /*
 542  * set user parameters
 543  */
 544 void cmd_setu(char *new_parms)
 545 {
 546
 547         if (num_parms(new_parms)!=3) {
 548                 cprintf("%d Usage error.\n",ERROR);
 549                 return;
 550                 }
 551         if (!(CC->logged_in)) {
 552                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 553                 return;
 554                 }
 555         lgetuser(&CC->usersupp,CC->curr_user);
 556         CC->usersupp.USscreenwidth = extract_int(new_parms,0);
 557         CC->usersupp.USscreenheight = extract_int(new_parms,1);
 558         CC->usersupp.flags = CC->usersupp.flags & (~US_USER_SET);
 559         CC->usersupp.flags = CC->usersupp.flags |
 560                 (extract_int(new_parms,2) & US_USER_SET);
 561         lputuser(&CC->usersupp,CC->curr_user);
 562         cprintf("%d Ok\n",OK);
 563         }
 564
 565 /*
 566  * set last read pointer
 567  */
 568 void cmd_slrp(char *new_ptr)
 569 {
 570         long newlr;
 571
 572         if (!(CC->logged_in)) {
 573                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 574                 return;
 575                 }
 576
 577         if (CC->curr_rm < 0) {
 578                 cprintf("%d No current room.\n",ERROR);
 579                 return;
 580                 }
 581
 582         if (!strncasecmp(new_ptr,"highest",7)) {
 583                 newlr = CC->quickroom.QRhighest;
 584                 }
 585         else {
 586                 newlr = atol(new_ptr);
 587                 }
 588
 589         lgetuser(&CC->usersupp, CC->curr_user);
 590         CC->usersupp.lastseen[CC->curr_rm] = newlr;
 591         lputuser(&CC->usersupp, CC->curr_user);
 592         cprintf("%d %ld\n",OK,newlr);
 593         }
 594
 595
 596 /*
 597  * INVT and KICK commands
 598  */
 599 void cmd_invt_kick(char *iuser, int op)
 600                         /* user name */
 601         {               /* 1 = invite, 0 = kick out */
 602         struct usersupp USscratch;
 603         char bbb[256];
 604
 605         if (!(CC->logged_in)) {
 606                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 607                 return;
 608                 }
 609
 610         if (CC->curr_rm < 0) {
 611                 cprintf("%d No current room.\n",ERROR);
 612                 return;
 613                 }
 614
 615         if (is_room_aide()==0) {
 616                 cprintf("%d Higher access required.\n",
 617                         ERROR+HIGHER_ACCESS_REQUIRED);
 618                 return;
 619                 }
 620
 621         if ( (op==1) && ((CC->quickroom.QRflags&QR_PRIVATE)==0) ) {
 622                 cprintf("%d Not a private room.\n",ERROR+NOT_HERE);
 623                 return;
 624                 }
 625
 626         if (lgetuser(&USscratch,iuser)!=0) {
 627                 cprintf("%d No such user.\n",ERROR);
 628                 return;
 629                 }
 630
 631         if (op==1) {
 632                 USscratch.generation[CC->curr_rm]=CC->quickroom.QRgen;
 633                 USscratch.forget[CC->curr_rm]=(-1);
 634                 }
 635
 636         if (op==0) {
 637                 USscratch.generation[CC->curr_rm]=(-1);
 638                 USscratch.forget[CC->curr_rm]=CC->quickroom.QRgen;
 639                 }
 640
 641         lputuser(&USscratch,iuser);
 642
 643         /* post a message in Aide> saying what we just did */
 644         sprintf(bbb,"%s %s %s> by %s",
 645                 iuser,
 646                 ((op == 1) ? "invited to" : "kicked out of"),
 647                 CC->quickroom.QRname,
 648                 CC->usersupp.fullname);
 649         aide_message(bbb);
 650
 651         if ((op==0)&&((CC->quickroom.QRflags&QR_PRIVATE)==0)) {
 652                 cprintf("%d Ok. (Not a private room, <Z>ap effect only)\n",OK);
 653                 }
 654         else {
 655                 cprintf("%d Ok.\n",OK);
 656                 }
 657         return;
 658         }
 659
 660
 661 /*
 662  * forget (Zap) the current room
 663  */
 664 void cmd_forg(void) {
 665         if (!(CC->logged_in)) {
 666                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 667                 return;
 668                 }
 669
 670         if (CC->curr_rm < 0) {
 671                 cprintf("%d No current room.\n",ERROR);
 672                 return;
 673                 }
 674
 675         if (CC->curr_rm < 3) {
 676                 cprintf("%d You cannot forget this room.\n",ERROR+NOT_HERE);
 677                 return;
 678                 }
 679
 680         if (is_aide()) {
 681                 cprintf("%d Aides cannot forget rooms.\n",ERROR);
 682                 return;
 683                 }
 684
 685         lgetuser(&CC->usersupp,CC->curr_user);
 686         CC->usersupp.forget[CC->curr_rm] = CC->quickroom.QRgen;
 687         CC->usersupp.generation[CC->curr_rm] = (-1);
 688         lputuser(&CC->usersupp,CC->curr_user);
 689         cprintf("%d Ok\n",OK);
 690         CC->curr_rm = (-1);
 691         }
 692
 693 /*
 694  * Get Next Unregistered User
 695  */
 696 void cmd_gnur(void) {
 697         struct cdbdata *cdbus;
 698         struct usersupp usbuf;
 699
 700         if (!(CC->logged_in)) {
 701                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 702                 return;
 703                 }
 704
 705         if (CC->usersupp.axlevel < 6) {
 706                 cprintf("%d Higher access required.\n",
 707                         ERROR+HIGHER_ACCESS_REQUIRED);
 708                 return;
 709                 }
 710
 711         if ((CitControl.MMflags&MM_VALID)==0) {
 712                 cprintf("%d There are no unvalidated users.\n",OK);
 713                 return;
 714                 }
 715
 716         /* There are unvalidated users.  Traverse the usersupp database,
 717          * and return the first user we find that needs validation.
 718          */
 719         cdb_rewind(CDB_USERSUPP);
 720         while (cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 721                 bzero(&usbuf, sizeof(struct usersupp));
 722                 memcpy(&usbuf, cdbus->ptr,
 723                         ( (cdbus->len > sizeof(struct usersupp)) ?
 724                         sizeof(struct usersupp) : cdbus->len) );
 725                 cdb_free(cdbus);
 726                 if ((usbuf.flags & US_NEEDVALID)
 727                    &&(usbuf.axlevel > 0)) {
 728                         cprintf("%d %s\n",MORE_DATA,usbuf.fullname);
 729                         return;
 730                         }
 731                 }
 732
 733         /* If we get to this point, there are no more unvalidated users.
 734          * Therefore we clear the "users need validation" flag.
 735          */
 736
 737         begin_critical_section(S_CONTROL);
 738         get_control();
 739         CitControl.MMflags = CitControl.MMflags&(~MM_VALID);
 740         put_control();
 741         end_critical_section(S_CONTROL);
 742         cprintf("%d *** End of registration.\n",OK);
 743
 744
 745         }
 746
 747
 748 /*
 749  * get registration info for a user
 750  */
 751 void cmd_greg(char *who)
 752 {
 753         struct usersupp usbuf;
 754         int a,b;
 755         char pbuf[32];
 756
 757         if (!(CC->logged_in)) {
 758                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 759                 return;
 760                 }
 761
 762         if (!strcasecmp(who,"_SELF_")) strcpy(who,CC->curr_user);
 763
 764         if ((CC->usersupp.axlevel < 6) && (strcasecmp(who,CC->curr_user))) {
 765                 cprintf("%d Higher access required.\n",
 766                         ERROR+HIGHER_ACCESS_REQUIRED);
 767                 return;
 768                 }
 769
 770         if (getuser(&usbuf,who) != 0) {
 771                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,who);
 772                 return;
 773                 }
 774
 775         cprintf("%d %s\n",LISTING_FOLLOWS,usbuf.fullname);
 776         cprintf("%ld\n",usbuf.usernum);
 777         cprintf("%s\n",usbuf.password);
 778         cprintf("%s\n",usbuf.USname);
 779         cprintf("%s\n",usbuf.USaddr);
 780         cprintf("%s\n%s\n%s\n",
 781                 usbuf.UScity,usbuf.USstate,usbuf.USzip);
 782         strcpy(pbuf,usbuf.USphone);
 783         usbuf.USphone[0]=0;
 784         for (a=0; a<strlen(pbuf); ++a) {
 785                 if ((pbuf[a]>='0')&&(pbuf[a]<='9')) {
 786                         b=strlen(usbuf.USphone);
 787                         usbuf.USphone[b]=pbuf[a];
 788                         usbuf.USphone[b+1]=0;
 789                         }
 790                 }
 791         while(strlen(usbuf.USphone)<10) {
 792                 strcpy(pbuf,usbuf.USphone);
 793                 strcpy(usbuf.USphone," ");
 794                 strcat(usbuf.USphone,pbuf);
 795                 }
 796
 797         cprintf("(%c%c%c) %c%c%c-%c%c%c%c\n",
 798                 usbuf.USphone[0],usbuf.USphone[1],
 799                 usbuf.USphone[2],usbuf.USphone[3],
 800                 usbuf.USphone[4],usbuf.USphone[5],
 801                 usbuf.USphone[6],usbuf.USphone[7],
 802                 usbuf.USphone[8],usbuf.USphone[9]);
 803
 804         cprintf("%d\n",usbuf.axlevel);
 805         cprintf("%s\n",usbuf.USemail);
 806         cprintf("000\n");
 807         }
 808
 809 /*
 810  * validate a user
 811  */
 812 void cmd_vali(char *v_args)
 813 {
 814         char user[256];
 815         int newax;
 816         struct usersupp userbuf;
 817
 818         extract(user,v_args,0);
 819         newax = extract_int(v_args,1);
 820
 821         if (!(CC->logged_in)) {
 822                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 823                 return;
 824                 }
 825
 826         if (CC->usersupp.axlevel < 6) {
 827                 cprintf("%d Higher access required.\n",
 828                         ERROR+HIGHER_ACCESS_REQUIRED);
 829                 return;
 830                 }
 831
 832         if (lgetuser(&userbuf,user)!=0) {
 833                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,user);
 834                 return;
 835                 }
 836
 837         userbuf.axlevel = newax;
 838         userbuf.flags = (userbuf.flags & ~US_NEEDVALID);
 839
 840         lputuser(&userbuf,user);
 841
 842         /* If the access level was set to zero, delete the user */
 843         if (newax == 0) {
 844                 purge_user(user);
 845                 cprintf("%d %s Deleted.\n", OK, userbuf.fullname);
 846                 return;
 847                 }
 848
 849         cprintf("%d ok\n",OK);
 850         }
 851
 852
 853
 854 /*
 855  *  List users
 856  */
 857 void cmd_list(void) {
 858         struct usersupp usbuf;
 859         struct cdbdata *cdbus;
 860
 861         cdb_rewind(CDB_USERSUPP);
 862         cprintf("%d \n",LISTING_FOLLOWS);
 863
 864         while(cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 865                 bzero(&usbuf, sizeof(struct usersupp));
 866                 memcpy(&usbuf, cdbus->ptr,
 867                         ( (cdbus->len > sizeof(struct usersupp)) ?
 868                         sizeof(struct usersupp) : cdbus->len) );
 869                 cdb_free(cdbus);
 870
 871             if (usbuf.axlevel > 0) {
 872                 if ((CC->usersupp.axlevel>=6)
 873                    ||((usbuf.flags&US_UNLISTED)==0)
 874                    ||((CC->internal_pgm))) {
 875                         cprintf("%s|%d|%ld|%ld|%d|%d|",
 876                                 usbuf.fullname,
 877                                 usbuf.axlevel,
 878                                 usbuf.usernum,
 879                                 usbuf.lastcall,
 880                                 usbuf.timescalled,
 881                                 usbuf.posted);
 882                         if (CC->usersupp.axlevel >= 6) cprintf("%s",usbuf.password);
 883                         cprintf("\n");
 884                         }
 885                     }
 886                 }
 887         cprintf("000\n");
 888         }
 889
 890 /*
 891  * enter registration info
 892  */
 893 void cmd_regi(void) {
 894         int a,b,c;
 895         char buf[256];
 896
 897         char tmpname[256];
 898         char tmpaddr[256];
 899         char tmpcity[256];
 900         char tmpstate[256];
 901         char tmpzip[256];
 902         char tmpphone[256];
 903         char tmpemail[256];
 904
 905         if (!(CC->logged_in)) {
 906                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 907                 return;
 908                 }
 909
 910         strcpy(tmpname,"");
 911         strcpy(tmpaddr,"");
 912         strcpy(tmpcity,"");
 913         strcpy(tmpstate,"");
 914         strcpy(tmpzip,"");
 915         strcpy(tmpphone,"");
 916         strcpy(tmpemail,"");
 917
 918         cprintf("%d Send registration...\n",SEND_LISTING);
 919         a=0;
 920         while (client_gets(buf), strcmp(buf,"000")) {
 921                 if (a==0) strcpy(tmpname,buf);
 922                 if (a==1) strcpy(tmpaddr,buf);
 923                 if (a==2) strcpy(tmpcity,buf);
 924                 if (a==3) strcpy(tmpstate,buf);
 925                 if (a==4) {
 926                         for (c=0; c<strlen(buf); ++c) {
 927                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
 928                                         b=strlen(tmpzip);
 929                                         tmpzip[b]=buf[c];
 930                                         tmpzip[b+1]=0;
 931                                         }
 932                                 }
 933                         }
 934                 if (a==5) {
 935                         for (c=0; c<strlen(buf); ++c) {
 936                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
 937                                         b=strlen(tmpphone);
 938                                         tmpphone[b]=buf[c];
 939                                         tmpphone[b+1]=0;
 940                                         }
 941                                 }
 942                         }
 943                 if (a==6) strncpy(tmpemail,buf,31);
 944                 ++a;
 945                 }
 946
 947         tmpname[29]=0;
 948         tmpaddr[24]=0;
 949         tmpcity[14]=0;
 950         tmpstate[2]=0;
 951         tmpzip[9]=0;
 952         tmpphone[10]=0;
 953         tmpemail[31]=0;
 954
 955         lgetuser(&CC->usersupp,CC->curr_user);
 956         strcpy(CC->usersupp.USname,tmpname);
 957         strcpy(CC->usersupp.USaddr,tmpaddr);
 958         strcpy(CC->usersupp.UScity,tmpcity);
 959         strcpy(CC->usersupp.USstate,tmpstate);
 960         strcpy(CC->usersupp.USzip,tmpzip);
 961         strcpy(CC->usersupp.USphone,tmpphone);
 962         strcpy(CC->usersupp.USemail,tmpemail);
 963         CC->usersupp.flags=(CC->usersupp.flags|US_REGIS|US_NEEDVALID);
 964         lputuser(&CC->usersupp,CC->curr_user);
 965
 966         /* set global flag calling for validation */
 967         begin_critical_section(S_CONTROL);
 968         get_control();
 969         CitControl.MMflags = CitControl.MMflags | MM_VALID ;
 970         put_control();
 971         end_critical_section(S_CONTROL);
 972         cprintf("%d *** End of registration.\n",OK);
 973         }
 974
 975
 976 /*
 977  * assorted info we need to check at login
 978  */
 979 void cmd_chek(void) {
 980         int mail = 0;
 981         int regis = 0;
 982         int vali = 0;
 983         int a;
 984         struct cdbdata *cdbmb;
 985         long *mailbox;
 986         int num_mails;
 987
 988
 989         if (!(CC->logged_in)) {
 990                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 991                 return;
 992                 }
 993
 994         getuser(&CC->usersupp,CC->curr_user); /* no lock is needed here */
 995         if ((REGISCALL!=0)&&((CC->usersupp.flags&US_REGIS)==0)) regis = 1;
 996
 997         if (CC->usersupp.axlevel >= 6) {
 998                 get_control();
 999                 if (CitControl.MMflags&MM_VALID) vali = 1;
1000                 }
1001
1002
1003         /* check for mail */
1004         mail = 0;
1005         cdbmb = cdb_fetch(CDB_MAILBOXES, &CC->usersupp.usernum, sizeof(long));
1006         if (cdbmb != NULL) {
1007                 num_mails = cdbmb->len / sizeof(long);
1008                 mailbox = (long *) cdbmb->ptr;
1009                 if (num_mails > 0) for (a=0; a<num_mails; ++a) {
1010                         if (mailbox[a] > (CC->usersupp.lastseen[1])) ++mail;
1011                         }
1012                 cdb_free(cdbmb);
1013                 }
1014
1015
1016         cprintf("%d %d|%d|%d\n",OK,mail,regis,vali);
1017         }
1018
1019
1020 /*
1021  * check to see if a user exists
1022  */
1023 void cmd_qusr(char *who)
1024 {
1025         struct usersupp usbuf;
1026
1027         if (getuser(&usbuf,who) == 0) {
1028                 cprintf("%d %s\n",OK,usbuf.fullname);
1029                 }
1030         else {
1031                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1032                 }
1033         }
1034
1035
1036 /*
1037  * enter user bio
1038  */
1039 void cmd_ebio(void) {
1040         char buf[256];
1041         FILE *fp;
1042
1043         if (!(CC->logged_in)) {
1044                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1045                 return;
1046                 }
1047
1048         sprintf(buf,"./bio/%ld",CC->usersupp.usernum);
1049         fp = fopen(buf,"w");
1050         if (fp == NULL) {
1051                 cprintf("%d Cannot create file\n",ERROR);
1052                 return;
1053                 }
1054         cprintf("%d  \n",SEND_LISTING);
1055         while(client_gets(buf), strcmp(buf,"000")) {
1056                 fprintf(fp,"%s\n",buf);
1057                 }
1058         fclose(fp);
1059         }
1060
1061 /*
1062  * read user bio
1063  */
1064 void cmd_rbio(char *cmdbuf)
1065 {
1066         struct usersupp ruser;
1067         char buf[256];
1068         FILE *fp;
1069
1070         extract(buf,cmdbuf,0);
1071         if (getuser(&ruser,buf)!=0) {
1072                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1073                 return;
1074                 }
1075         sprintf(buf,"./bio/%ld",ruser.usernum);
1076
1077         fp = fopen(buf,"r");
1078         if (fp == NULL) {
1079                 cprintf("%d %s has no bio on file.\n",
1080                         ERROR+FILE_NOT_FOUND,ruser.fullname);
1081                 return;
1082                 }
1083         cprintf("%d  \n",LISTING_FOLLOWS);
1084         while (fgets(buf,256,fp)!=NULL) cprintf("%s",buf);
1085         fclose(fp);
1086         cprintf("000\n");
1087         }
1088
1089 /*
1090  * list of users who have entered bios
1091  */
1092 void cmd_lbio(void) {
1093         char buf[256];
1094         FILE *ls;
1095         struct usersupp usbuf;
1096
1097         ls=popen("cd ./bio; ls","r");
1098         if (ls==NULL) {
1099                 cprintf("%d Cannot open listing.\n",ERROR+FILE_NOT_FOUND);
1100                 return;
1101                 }
1102
1103         cprintf("%d\n",LISTING_FOLLOWS);
1104         while (fgets(buf,255,ls)!=NULL)
1105                 if (getuserbynumber(&usbuf,atol(buf))==0)
1106                         cprintf("%s\n",usbuf.fullname);
1107         pclose(ls);
1108         cprintf("000\n");
1109         }
1110
1111
1112 /*
1113  * Administrative Get User Parameters
1114  */
1115 void cmd_agup(char *cmdbuf) {
1116         struct usersupp usbuf;
1117         char requested_user[256];
1118
1119         if ( (CC->internal_pgm==0)
1120            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1121                 cprintf("%d Higher access required.\n",
1122                         ERROR + HIGHER_ACCESS_REQUIRED);
1123                 return;
1124                 }
1125
1126         extract(requested_user, cmdbuf, 0);
1127         if (getuser(&usbuf, requested_user) != 0) {
1128                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1129                 return;
1130                 }
1131
1132         cprintf("%d %s|%s|%u|%d|%d|%d|%ld\n",
1133                 OK,
1134                 usbuf.fullname,
1135                 usbuf.password,
1136                 usbuf.flags,
1137                 usbuf.timescalled,
1138                 usbuf.posted,
1139                 (int)usbuf.axlevel,
1140                 usbuf.usernum);
1141
1142         }
1143
1144
1145
1146 /*
1147  * Administrative Set User Parameters
1148  */
1149 void cmd_asup(char *cmdbuf) {
1150         struct usersupp usbuf;
1151         char requested_user[256];
1152         int np;
1153
1154         if ( (CC->internal_pgm==0)
1155            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1156                 cprintf("%d Higher access required.\n",
1157                         ERROR + HIGHER_ACCESS_REQUIRED);
1158                 return;
1159                 }
1160
1161         extract(requested_user, cmdbuf, 0);
1162         if (lgetuser(&usbuf, requested_user) != 0) {
1163                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1164                 return;
1165                 }
1166
1167         np = num_parms(cmdbuf);
1168         if (np > 1) extract(usbuf.password, cmdbuf, 1);
1169         if (np > 2) usbuf.flags = extract_int(cmdbuf, 2);
1170         if (np > 3) usbuf.timescalled = extract_int(cmdbuf, 3);
1171         if (np > 4) usbuf.posted = extract_int(cmdbuf, 4);
1172         if (np > 5) usbuf.axlevel = extract_int(cmdbuf, 5);
1173
1174         lputuser(&usbuf, requested_user);
1175         cprintf("%d Ok\n", OK);
1176         }