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, cdbus->len);
 143                 cdb_free(cdbus);
 144                 if (usbuf->usernum == number) {
 145                         return(0);
 146                         }
 147                 }
 148         return(-1);
 149         }
 150
 151
 152 /*
 153  * USER cmd
 154  */
 155 void cmd_user(char *cmdbuf)
 156 {
 157         char username[256];
 158         char autoname[256];
 159         int found_user = 0;
 160         struct passwd *p;
 161         int a;
 162
 163         extract(username,cmdbuf,0);
 164         username[25] = 0;
 165         strproc(username);
 166
 167         if ((CC->logged_in)) {
 168                 cprintf("%d Already logged in.\n",ERROR);
 169                 return;
 170                 }
 171
 172         found_user = getuser(&CC->usersupp,username);
 173         if (found_user != 0) {
 174                 p = (struct passwd *)getpwnam(username);
 175                 if (p!=NULL) {
 176                         strcpy(autoname,p->pw_gecos);
 177                         for (a=0; a<strlen(autoname); ++a)
 178                                 if (autoname[a]==',') autoname[a]=0;
 179                         found_user = getuser(&CC->usersupp,autoname);
 180                         }
 181                 }
 182         if (found_user == 0) {
 183                 if (((CC->nologin)) && (CC->usersupp.axlevel < 6)) {
 184                         cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 185                         ERROR+MAX_SESSIONS_EXCEEDED,
 186                         config.c_nodename,config.c_maxsessions);
 187                         }
 188                 else {
 189                         strcpy(CC->curr_user,CC->usersupp.fullname);
 190                         cprintf("%d Password required for %s\n",
 191                                 MORE_DATA,CC->curr_user);
 192                         }
 193                 }
 194         else {
 195                 cprintf("%d %s not found.\n",ERROR,username);
 196                 }
 197         }
 198
 199
 200
 201 /*
 202  * session startup code which is common to both cmd_pass() and cmd_newu()
 203  */
 204 void session_startup(void) {
 205         int a;
 206         struct quickroom qr;
 207
 208         syslog(LOG_NOTICE,"user <%s> logged in",CC->curr_user);
 209         hook_user_login(CC->cs_pid, CC->curr_user);
 210         lgetuser(&CC->usersupp,CC->curr_user);
 211         ++(CC->usersupp.timescalled);
 212         CC->fake_username[0] = '\0';
 213         CC->fake_postname[0] = '\0';
 214         CC->fake_hostname[0] = '\0';
 215         CC->fake_roomname[0] = '\0';
 216         CC->last_pager[0] = '\0';
 217         time(&CC->usersupp.lastcall);
 218
 219         /* If this user's name is the name of the system administrator
 220          * (as specified in setup), automatically assign access level 6.
 221          */
 222         if (!strcasecmp(CC->usersupp.fullname, config.c_sysadm)) {
 223                 CC->usersupp.axlevel = 6;
 224                 }
 225
 226 /* A room's generation number changes each time it is recycled. Users are kept
 227  * out of private rooms or forget rooms by matching the generation numbers. To
 228  * avoid an accidental matchup, unmatched numbers are set to -1 here.
 229  */
 230         for (a=0; a<MAXROOMS; ++a) {
 231                 getroom(&qr,a);
 232                 if (CC->usersupp.generation[a] != qr.QRgen)
 233                                         CC->usersupp.generation[a]=(-1);
 234                 if (CC->usersupp.forget[a] != qr.QRgen)
 235                                         CC->usersupp.forget[a]=(-1);
 236                 }
 237
 238         lputuser(&CC->usersupp,CC->curr_user);
 239
 240         cprintf("%d %s|%d|%d|%d|%u|%ld\n",OK,CC->usersupp.fullname,CC->usersupp.axlevel,
 241                 CC->usersupp.timescalled,CC->usersupp.posted,CC->usersupp.flags,
 242                 CC->usersupp.usernum);
 243         usergoto(0,0);          /* Enter the lobby */
 244         rec_log(CL_LOGIN,CC->curr_user);
 245         }
 246
 247
 248
 249 /*
 250  * misc things to be taken care of when a user is logged out
 251  */
 252 void logout(struct CitContext *who)
 253 {
 254         who->logged_in = 0;
 255         if (who->download_fp != NULL) {
 256                 fclose(who->download_fp);
 257                 who->download_fp = NULL;
 258                 }
 259         if (who->upload_fp != NULL) {
 260                 abort_upl(who);
 261                 }
 262         }
 263
 264
 265 void cmd_pass(char *buf)
 266 {
 267         char password[256];
 268         int code;
 269         struct passwd *p;
 270
 271         extract(password,buf,0);
 272
 273         if ((CC->logged_in)) {
 274                 cprintf("%d Already logged in.\n",ERROR);
 275                 return;
 276                 }
 277         if (!strcmp(CC->curr_user,"")) {
 278                 cprintf("%d You must send a name with USER first.\n",ERROR);
 279                 return;
 280                 }
 281         if (getuser(&CC->usersupp,CC->curr_user)) {
 282                 cprintf("%d Can't find user record!\n",ERROR+INTERNAL_ERROR);
 283                 return;
 284                 }
 285
 286         code = (-1);
 287         if (CC->usersupp.USuid == BBSUID) {
 288                 strproc(password);
 289                 strproc(CC->usersupp.password);
 290                 code = strcasecmp(CC->usersupp.password,password);
 291                 }
 292         else {
 293                 p = (struct passwd *)getpwuid(CC->usersupp.USuid);
 294 #ifdef ENABLE_AUTOLOGIN
 295                 if (p!=NULL) {
 296                         if (!strcmp(p->pw_passwd,
 297                            (char *)crypt(password,p->pw_passwd))) {
 298                                 code = 0;
 299                                 lgetuser(&CC->usersupp, CC->curr_user);
 300                                 strcpy(CC->usersupp.password, password);
 301                                 lputuser(&CC->usersupp, CC->curr_user);
 302                                 }
 303                         }
 304 #endif
 305                 }
 306
 307         if (!code) {
 308                 (CC->logged_in) = 1;
 309                 session_startup();
 310                 }
 311         else {
 312                 cprintf("%d Wrong password.\n",ERROR);
 313                 rec_log(CL_BADPW,CC->curr_user);
 314                 }
 315         }
 316
 317
 318 /*
 319  * purge related files when removing or overwriting a user record
 320  */
 321 void purge_user(char *pname) {
 322         char filename[64];
 323         struct usersupp usbuf;
 324         int a;
 325         struct cdbdata *cdbmb;
 326         long *mailbox;
 327         int num_mails;
 328
 329         if (getuser(&usbuf, pname) != 0) {
 330                 lprintf(5, "Cannot purge user <%s> - not found\n", pname);
 331                 return;
 332                 }
 333
 334         /* delete any messages in the user's mailbox */
 335         cdbmb = cdb_fetch(CDB_MAILBOXES, &usbuf.usernum, sizeof(long));
 336         if (cdbmb != NULL) {
 337                 num_mails = cdbmb->len / sizeof(long);
 338                 mailbox = (long *) cdbmb->ptr;
 339                 if (num_mails > 0) for (a=0; a<num_mails; ++a) {
 340                         cdb_delete(CDB_MSGMAIN, &mailbox[a], sizeof(long));
 341                         }
 342                 cdb_free(cdbmb);
 343                 /* now delete the mailbox itself */
 344                 cdb_delete(CDB_MAILBOXES, &usbuf.usernum, sizeof(long));
 345                 }
 346
 347
 348         /* delete the userlog entry */
 349         cdb_delete(CDB_USERSUPP, pname, strlen(pname));
 350
 351         /* remove the user's bio file */
 352         sprintf(filename, "./bio/%ld", usbuf.usernum);
 353         unlink(filename);
 354
 355         /* remove the user's picture */
 356         sprintf(filename, "./userpics/%ld.gif", usbuf.usernum);
 357         unlink(filename);
 358
 359         }
 360
 361
 362 /*
 363  * create_user()  -  back end processing to create a new user
 364  */
 365 int create_user(char *newusername)
 366 {
 367         struct usersupp usbuf;
 368         int a;
 369         struct passwd *p = NULL;
 370         char username[64];
 371
 372         strcpy(username, newusername);
 373         strproc(username);
 374
 375 #ifdef ENABLE_AUTOLOGIN
 376         p = (struct passwd *)getpwnam(username);
 377 #endif
 378         if (p != NULL) {
 379                 strcpy(username, p->pw_gecos);
 380                 for (a=0; a<strlen(username); ++a) {
 381                         if (username[a] == ',') username[a] = 0;
 382                         }
 383                 CC->usersupp.USuid = p->pw_uid;
 384                 }
 385         else {
 386                 CC->usersupp.USuid = BBSUID;
 387                 }
 388
 389         if (!getuser(&usbuf,username)) {
 390                 return(ERROR+ALREADY_EXISTS);
 391                 }
 392
 393         strcpy(CC->curr_user,username);
 394         strcpy(CC->usersupp.fullname,username);
 395         (CC->logged_in) = 1;
 396
 397         for (a=0; a<MAXROOMS; ++a) {
 398                 CC->usersupp.lastseen[a]=0L;
 399                 CC->usersupp.generation[a]=(-1);
 400                 CC->usersupp.forget[a]=(-1);
 401                 }
 402         strcpy(CC->usersupp.password,"");
 403
 404         /* These are the default flags on new accounts */
 405         CC->usersupp.flags =
 406                 US_NEEDVALID|US_LASTOLD|US_DISAPPEAR|US_PAGINATOR|US_FLOORS;
 407
 408         CC->usersupp.timescalled = 0;
 409         CC->usersupp.posted = 0;
 410         CC->usersupp.axlevel = INITAX;
 411         CC->usersupp.USscreenwidth = 80;
 412         CC->usersupp.USscreenheight = 24;
 413         time(&CC->usersupp.lastcall);
 414         strcpy(CC->usersupp.USname, "");
 415         strcpy(CC->usersupp.USaddr, "");
 416         strcpy(CC->usersupp.UScity, "");
 417         strcpy(CC->usersupp.USstate, "");
 418         strcpy(CC->usersupp.USzip, "");
 419         strcpy(CC->usersupp.USphone, "");
 420
 421         /* fetch a new user number */
 422         CC->usersupp.usernum = get_new_user_number();
 423
 424         if (CC->usersupp.usernum == 1L) {
 425                 CC->usersupp.axlevel = 6;
 426                 }
 427
 428         /* add user to userlog */
 429         putuser(&CC->usersupp,CC->curr_user);
 430         if (getuser(&CC->usersupp,CC->curr_user)) {
 431                 return(ERROR+INTERNAL_ERROR);
 432                 }
 433         rec_log(CL_NEWUSER,CC->curr_user);
 434         return(0);
 435         }
 436
 437
 438
 439
 440 /*
 441  * cmd_newu()  -  create a new user account
 442  */
 443 void cmd_newu(char *cmdbuf)
 444 {
 445         int a;
 446         char username[256];
 447
 448         if ((CC->logged_in)) {
 449                 cprintf("%d Already logged in.\n",ERROR);
 450                 return;
 451                 }
 452
 453         if ((CC->nologin)) {
 454                 cprintf("%d %s: Too many users are already online (maximum is %d)\n",
 455                 ERROR+MAX_SESSIONS_EXCEEDED,
 456                 config.c_nodename,config.c_maxsessions);
 457                 }
 458
 459         extract(username,cmdbuf,0);
 460         username[25] = 0;
 461         strproc(username);
 462
 463         if (strlen(username)==0) {
 464                 cprintf("%d You must supply a user name.\n",ERROR);
 465                 return;
 466                 }
 467
 468         a = create_user(username);
 469         if ((!strcasecmp(username, "bbs")) ||
 470             (!strcasecmp(username, "new")) ||
 471             (!strcasecmp(username, ".")))
 472         {
 473            cprintf("%d '%s' is an invalid login name.\n", ERROR);
 474            return;
 475         }
 476         if (a==ERROR+ALREADY_EXISTS) {
 477                 cprintf("%d '%s' already exists.\n",
 478                         ERROR+ALREADY_EXISTS,username);
 479                 return;
 480                 }
 481         else if (a==ERROR+INTERNAL_ERROR) {
 482                 cprintf("%d Internal error - user record disappeared?\n",
 483                         ERROR+INTERNAL_ERROR);
 484                 return;
 485                 }
 486         else if (a==0) {
 487                 session_startup();
 488                 }
 489         else {
 490                 cprintf("%d unknown error\n",ERROR);
 491                 }
 492         rec_log(CL_NEWUSER,CC->curr_user);
 493         }
 494
 495
 496
 497 /*
 498  * set password
 499  */
 500 void cmd_setp(char *new_pw)
 501 {
 502         if (!(CC->logged_in)) {
 503                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 504                 return;
 505                 }
 506         if (CC->usersupp.USuid != BBSUID) {
 507                 cprintf("%d Not allowed.  Use the 'passwd' command.\n",ERROR);
 508                 return;
 509                 }
 510         strproc(new_pw);
 511         if (strlen(new_pw)==0) {
 512                 cprintf("%d Password unchanged.\n",OK);
 513                 return;
 514                 }
 515         lgetuser(&CC->usersupp,CC->curr_user);
 516         strcpy(CC->usersupp.password,new_pw);
 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",
 532                 OK,
 533                 CC->usersupp.USscreenwidth,
 534                 CC->usersupp.USscreenheight,
 535                 (CC->usersupp.flags & US_USER_SET)
 536                 );
 537         }
 538
 539 /*
 540  * set user parameters
 541  */
 542 void cmd_setu(char *new_parms)
 543 {
 544
 545         if (num_parms(new_parms)!=3) {
 546                 cprintf("%d Usage error.\n",ERROR);
 547                 return;
 548                 }
 549         if (!(CC->logged_in)) {
 550                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 551                 return;
 552                 }
 553         lgetuser(&CC->usersupp,CC->curr_user);
 554         CC->usersupp.USscreenwidth = extract_int(new_parms,0);
 555         CC->usersupp.USscreenheight = extract_int(new_parms,1);
 556         CC->usersupp.flags = CC->usersupp.flags & (~US_USER_SET);
 557         CC->usersupp.flags = CC->usersupp.flags |
 558                 (extract_int(new_parms,2) & US_USER_SET);
 559         lputuser(&CC->usersupp,CC->curr_user);
 560         cprintf("%d Ok\n",OK);
 561         }
 562
 563 /*
 564  * set last read pointer
 565  */
 566 void cmd_slrp(char *new_ptr)
 567 {
 568         long newlr;
 569
 570         if (!(CC->logged_in)) {
 571                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 572                 return;
 573                 }
 574
 575         if (CC->curr_rm < 0) {
 576                 cprintf("%d No current room.\n",ERROR);
 577                 return;
 578                 }
 579
 580         if (!strncasecmp(new_ptr,"highest",7)) {
 581                 newlr = CC->quickroom.QRhighest;
 582                 }
 583         else {
 584                 newlr = atol(new_ptr);
 585                 }
 586
 587         lgetuser(&CC->usersupp, CC->curr_user);
 588         CC->usersupp.lastseen[CC->curr_rm] = newlr;
 589         lputuser(&CC->usersupp, CC->curr_user);
 590         cprintf("%d %ld\n",OK,newlr);
 591         }
 592
 593
 594 /*
 595  * INVT and KICK commands
 596  */
 597 void cmd_invt_kick(char *iuser, int op)
 598                         /* user name */
 599         {               /* 1 = invite, 0 = kick out */
 600         struct usersupp USscratch;
 601         char bbb[256];
 602
 603         if (!(CC->logged_in)) {
 604                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 605                 return;
 606                 }
 607
 608         if (CC->curr_rm < 0) {
 609                 cprintf("%d No current room.\n",ERROR);
 610                 return;
 611                 }
 612
 613         if (is_room_aide()==0) {
 614                 cprintf("%d Higher access required.\n",
 615                         ERROR+HIGHER_ACCESS_REQUIRED);
 616                 return;
 617                 }
 618
 619         if ( (op==1) && ((CC->quickroom.QRflags&QR_PRIVATE)==0) ) {
 620                 cprintf("%d Not a private room.\n",ERROR+NOT_HERE);
 621                 return;
 622                 }
 623
 624         if (lgetuser(&USscratch,iuser)!=0) {
 625                 cprintf("%d No such user.\n",ERROR);
 626                 return;
 627                 }
 628
 629         if (op==1) {
 630                 USscratch.generation[CC->curr_rm]=CC->quickroom.QRgen;
 631                 USscratch.forget[CC->curr_rm]=(-1);
 632                 }
 633
 634         if (op==0) {
 635                 USscratch.generation[CC->curr_rm]=(-1);
 636                 USscratch.forget[CC->curr_rm]=CC->quickroom.QRgen;
 637                 }
 638
 639         lputuser(&USscratch,iuser);
 640
 641         /* post a message in Aide> saying what we just did */
 642         sprintf(bbb,"%s %s %s> by %s",
 643                 iuser,
 644                 ((op == 1) ? "invited to" : "kicked out of"),
 645                 CC->quickroom.QRname,
 646                 CC->usersupp.fullname);
 647         aide_message(bbb);
 648
 649         if ((op==0)&&((CC->quickroom.QRflags&QR_PRIVATE)==0)) {
 650                 cprintf("%d Ok. (Not a private room, <Z>ap effect only)\n",OK);
 651                 }
 652         else {
 653                 cprintf("%d Ok.\n",OK);
 654                 }
 655         return;
 656         }
 657
 658
 659 /*
 660  * forget (Zap) the current room
 661  */
 662 void cmd_forg(void) {
 663         if (!(CC->logged_in)) {
 664                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 665                 return;
 666                 }
 667
 668         if (CC->curr_rm < 0) {
 669                 cprintf("%d No current room.\n",ERROR);
 670                 return;
 671                 }
 672
 673         if (CC->curr_rm < 3) {
 674                 cprintf("%d You cannot forget this room.\n",ERROR+NOT_HERE);
 675                 return;
 676                 }
 677
 678         if (is_aide()) {
 679                 cprintf("%d Aides cannot forget rooms.\n",ERROR);
 680                 return;
 681                 }
 682
 683         lgetuser(&CC->usersupp,CC->curr_user);
 684         CC->usersupp.forget[CC->curr_rm] = CC->quickroom.QRgen;
 685         CC->usersupp.generation[CC->curr_rm] = (-1);
 686         lputuser(&CC->usersupp,CC->curr_user);
 687         cprintf("%d Ok\n",OK);
 688         CC->curr_rm = (-1);
 689         }
 690
 691 /*
 692  * Get Next Unregistered User
 693  */
 694 void cmd_gnur(void) {
 695         struct cdbdata *cdbus;
 696         struct usersupp usbuf;
 697
 698         if (!(CC->logged_in)) {
 699                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 700                 return;
 701                 }
 702
 703         if (CC->usersupp.axlevel < 6) {
 704                 cprintf("%d Higher access required.\n",
 705                         ERROR+HIGHER_ACCESS_REQUIRED);
 706                 return;
 707                 }
 708
 709         if ((CitControl.MMflags&MM_VALID)==0) {
 710                 cprintf("%d There are no unvalidated users.\n",OK);
 711                 return;
 712                 }
 713
 714         /* There are unvalidated users.  Traverse the usersupp database,
 715          * and return the first user we find that needs validation.
 716          */
 717         cdb_rewind(CDB_USERSUPP);
 718         while (cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 719                 bzero(&usbuf, sizeof(struct usersupp));
 720                 memcpy(&usbuf, cdbus->ptr, cdbus->len);
 721                 cdb_free(cdbus);
 722                 if ((usbuf.flags & US_NEEDVALID)
 723                    &&(usbuf.axlevel > 0)) {
 724                         cprintf("%d %s\n",MORE_DATA,usbuf.fullname);
 725                         return;
 726                         }
 727                 }
 728
 729         /* If we get to this point, there are no more unvalidated users.
 730          * Therefore we clear the "users need validation" flag.
 731          */
 732
 733         begin_critical_section(S_CONTROL);
 734         get_control();
 735         CitControl.MMflags = CitControl.MMflags&(~MM_VALID);
 736         put_control();
 737         end_critical_section(S_CONTROL);
 738         cprintf("%d *** End of registration.\n",OK);
 739
 740
 741         }
 742
 743
 744 /*
 745  * get registration info for a user
 746  */
 747 void cmd_greg(char *who)
 748 {
 749         struct usersupp usbuf;
 750         int a,b;
 751         char pbuf[32];
 752
 753         if (!(CC->logged_in)) {
 754                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 755                 return;
 756                 }
 757
 758         if (!strcasecmp(who,"_SELF_")) strcpy(who,CC->curr_user);
 759
 760         if ((CC->usersupp.axlevel < 6) && (strcasecmp(who,CC->curr_user))) {
 761                 cprintf("%d Higher access required.\n",
 762                         ERROR+HIGHER_ACCESS_REQUIRED);
 763                 return;
 764                 }
 765
 766         if (getuser(&usbuf,who) != 0) {
 767                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,who);
 768                 return;
 769                 }
 770
 771         cprintf("%d %s\n",LISTING_FOLLOWS,usbuf.fullname);
 772         cprintf("%ld\n",usbuf.usernum);
 773         cprintf("%s\n",usbuf.password);
 774         cprintf("%s\n",usbuf.USname);
 775         cprintf("%s\n",usbuf.USaddr);
 776         cprintf("%s\n%s\n%s\n",
 777                 usbuf.UScity,usbuf.USstate,usbuf.USzip);
 778         strcpy(pbuf,usbuf.USphone);
 779         usbuf.USphone[0]=0;
 780         for (a=0; a<strlen(pbuf); ++a) {
 781                 if ((pbuf[a]>='0')&&(pbuf[a]<='9')) {
 782                         b=strlen(usbuf.USphone);
 783                         usbuf.USphone[b]=pbuf[a];
 784                         usbuf.USphone[b+1]=0;
 785                         }
 786                 }
 787         while(strlen(usbuf.USphone)<10) {
 788                 strcpy(pbuf,usbuf.USphone);
 789                 strcpy(usbuf.USphone," ");
 790                 strcat(usbuf.USphone,pbuf);
 791                 }
 792
 793         cprintf("(%c%c%c) %c%c%c-%c%c%c%c\n",
 794                 usbuf.USphone[0],usbuf.USphone[1],
 795                 usbuf.USphone[2],usbuf.USphone[3],
 796                 usbuf.USphone[4],usbuf.USphone[5],
 797                 usbuf.USphone[6],usbuf.USphone[7],
 798                 usbuf.USphone[8],usbuf.USphone[9]);
 799
 800         cprintf("%d\n",usbuf.axlevel);
 801         cprintf("%s\n",usbuf.USemail);
 802         cprintf("000\n");
 803         }
 804
 805 /*
 806  * validate a user
 807  */
 808 void cmd_vali(char *v_args)
 809 {
 810         char user[256];
 811         int newax;
 812         struct usersupp userbuf;
 813
 814         extract(user,v_args,0);
 815         newax = extract_int(v_args,1);
 816
 817         if (!(CC->logged_in)) {
 818                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 819                 return;
 820                 }
 821
 822         if (CC->usersupp.axlevel < 6) {
 823                 cprintf("%d Higher access required.\n",
 824                         ERROR+HIGHER_ACCESS_REQUIRED);
 825                 return;
 826                 }
 827
 828         if (lgetuser(&userbuf,user)!=0) {
 829                 cprintf("%d '%s' not found.\n",ERROR+NO_SUCH_USER,user);
 830                 return;
 831                 }
 832
 833         userbuf.axlevel = newax;
 834         userbuf.flags = (userbuf.flags & ~US_NEEDVALID);
 835
 836         lputuser(&userbuf,user);
 837
 838         /* If the access level was set to zero, delete the user */
 839         if (newax == 0) {
 840                 purge_user(user);
 841                 cprintf("%d %s Deleted.\n", OK, userbuf.fullname);
 842                 return;
 843                 }
 844
 845         cprintf("%d ok\n",OK);
 846         }
 847
 848
 849
 850 /*
 851  *  List users
 852  */
 853 void cmd_list(void) {
 854         struct usersupp usbuf;
 855         struct cdbdata *cdbus;
 856
 857         cdb_rewind(CDB_USERSUPP);
 858         cprintf("%d \n",LISTING_FOLLOWS);
 859
 860         while(cdbus = cdb_next_item(CDB_USERSUPP), cdbus != NULL) {
 861                 bzero(&usbuf, sizeof(struct usersupp));
 862                 memcpy(&usbuf, cdbus->ptr, cdbus->len);
 863                 cdb_free(cdbus);
 864
 865             if (usbuf.axlevel > 0) {
 866                 if ((CC->usersupp.axlevel>=6)
 867                    ||((usbuf.flags&US_UNLISTED)==0)
 868                    ||((CC->internal_pgm))) {
 869                         cprintf("%s|%d|%ld|%ld|%d|%d|",
 870                                 usbuf.fullname,
 871                                 usbuf.axlevel,
 872                                 usbuf.usernum,
 873                                 usbuf.lastcall,
 874                                 usbuf.timescalled,
 875                                 usbuf.posted);
 876                         if (CC->usersupp.axlevel >= 6) cprintf("%s",usbuf.password);
 877                         cprintf("\n");
 878                         }
 879                     }
 880                 }
 881         cprintf("000\n");
 882         }
 883
 884 /*
 885  * enter registration info
 886  */
 887 void cmd_regi(void) {
 888         int a,b,c;
 889         char buf[256];
 890
 891         char tmpname[256];
 892         char tmpaddr[256];
 893         char tmpcity[256];
 894         char tmpstate[256];
 895         char tmpzip[256];
 896         char tmpphone[256];
 897         char tmpemail[256];
 898
 899         if (!(CC->logged_in)) {
 900                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 901                 return;
 902                 }
 903
 904         strcpy(tmpname,"");
 905         strcpy(tmpaddr,"");
 906         strcpy(tmpcity,"");
 907         strcpy(tmpstate,"");
 908         strcpy(tmpzip,"");
 909         strcpy(tmpphone,"");
 910         strcpy(tmpemail,"");
 911
 912         cprintf("%d Send registration...\n",SEND_LISTING);
 913         a=0;
 914         while (client_gets(buf), strcmp(buf,"000")) {
 915                 if (a==0) strcpy(tmpname,buf);
 916                 if (a==1) strcpy(tmpaddr,buf);
 917                 if (a==2) strcpy(tmpcity,buf);
 918                 if (a==3) strcpy(tmpstate,buf);
 919                 if (a==4) {
 920                         for (c=0; c<strlen(buf); ++c) {
 921                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
 922                                         b=strlen(tmpzip);
 923                                         tmpzip[b]=buf[c];
 924                                         tmpzip[b+1]=0;
 925                                         }
 926                                 }
 927                         }
 928                 if (a==5) {
 929                         for (c=0; c<strlen(buf); ++c) {
 930                                 if ((buf[c]>='0')&&(buf[c]<='9')) {
 931                                         b=strlen(tmpphone);
 932                                         tmpphone[b]=buf[c];
 933                                         tmpphone[b+1]=0;
 934                                         }
 935                                 }
 936                         }
 937                 if (a==6) strncpy(tmpemail,buf,31);
 938                 ++a;
 939                 }
 940
 941         tmpname[29]=0;
 942         tmpaddr[24]=0;
 943         tmpcity[14]=0;
 944         tmpstate[2]=0;
 945         tmpzip[9]=0;
 946         tmpphone[10]=0;
 947         tmpemail[31]=0;
 948
 949         lgetuser(&CC->usersupp,CC->curr_user);
 950         strcpy(CC->usersupp.USname,tmpname);
 951         strcpy(CC->usersupp.USaddr,tmpaddr);
 952         strcpy(CC->usersupp.UScity,tmpcity);
 953         strcpy(CC->usersupp.USstate,tmpstate);
 954         strcpy(CC->usersupp.USzip,tmpzip);
 955         strcpy(CC->usersupp.USphone,tmpphone);
 956         strcpy(CC->usersupp.USemail,tmpemail);
 957         CC->usersupp.flags=(CC->usersupp.flags|US_REGIS|US_NEEDVALID);
 958         lputuser(&CC->usersupp,CC->curr_user);
 959
 960         /* set global flag calling for validation */
 961         begin_critical_section(S_CONTROL);
 962         get_control();
 963         CitControl.MMflags = CitControl.MMflags | MM_VALID ;
 964         put_control();
 965         end_critical_section(S_CONTROL);
 966         cprintf("%d *** End of registration.\n",OK);
 967         }
 968
 969
 970 /*
 971  * assorted info we need to check at login
 972  */
 973 void cmd_chek(void) {
 974         int mail = 0;
 975         int regis = 0;
 976         int vali = 0;
 977         int a;
 978         struct cdbdata *cdbmb;
 979         long *mailbox;
 980         int num_mails;
 981
 982
 983         if (!(CC->logged_in)) {
 984                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
 985                 return;
 986                 }
 987
 988         getuser(&CC->usersupp,CC->curr_user); /* no lock is needed here */
 989         if ((REGISCALL!=0)&&((CC->usersupp.flags&US_REGIS)==0)) regis = 1;
 990
 991         if (CC->usersupp.axlevel >= 6) {
 992                 get_control();
 993                 if (CitControl.MMflags&MM_VALID) vali = 1;
 994                 }
 995
 996
 997         /* check for mail */
 998         mail = 0;
 999         cdbmb = cdb_fetch(CDB_MAILBOXES, &CC->usersupp.usernum, sizeof(long));
1000         if (cdbmb != NULL) {
1001                 num_mails = cdbmb->len / sizeof(long);
1002                 mailbox = (long *) cdbmb->ptr;
1003                 if (num_mails > 0) for (a=0; a<num_mails; ++a) {
1004                         if (mailbox[a] > (CC->usersupp.lastseen[1])) ++mail;
1005                         }
1006                 cdb_free(cdbmb);
1007                 }
1008
1009
1010         cprintf("%d %d|%d|%d\n",OK,mail,regis,vali);
1011         }
1012
1013
1014 /*
1015  * check to see if a user exists
1016  */
1017 void cmd_qusr(char *who)
1018 {
1019         struct usersupp usbuf;
1020
1021         if (getuser(&usbuf,who) == 0) {
1022                 cprintf("%d %s\n",OK,usbuf.fullname);
1023                 }
1024         else {
1025                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1026                 }
1027         }
1028
1029
1030 /*
1031  * enter user bio
1032  */
1033 void cmd_ebio(void) {
1034         char buf[256];
1035         FILE *fp;
1036
1037         if (!(CC->logged_in)) {
1038                 cprintf("%d Not logged in.\n",ERROR+NOT_LOGGED_IN);
1039                 return;
1040                 }
1041
1042         sprintf(buf,"./bio/%ld",CC->usersupp.usernum);
1043         fp = fopen(buf,"w");
1044         if (fp == NULL) {
1045                 cprintf("%d Cannot create file\n",ERROR);
1046                 return;
1047                 }
1048         cprintf("%d  \n",SEND_LISTING);
1049         while(client_gets(buf), strcmp(buf,"000")) {
1050                 fprintf(fp,"%s\n",buf);
1051                 }
1052         fclose(fp);
1053         }
1054
1055 /*
1056  * read user bio
1057  */
1058 void cmd_rbio(char *cmdbuf)
1059 {
1060         struct usersupp ruser;
1061         char buf[256];
1062         FILE *fp;
1063
1064         extract(buf,cmdbuf,0);
1065         if (getuser(&ruser,buf)!=0) {
1066                 cprintf("%d No such user.\n",ERROR+NO_SUCH_USER);
1067                 return;
1068                 }
1069         sprintf(buf,"./bio/%ld",ruser.usernum);
1070
1071         fp = fopen(buf,"r");
1072         if (fp == NULL) {
1073                 cprintf("%d %s has no bio on file.\n",
1074                         ERROR+FILE_NOT_FOUND,ruser.fullname);
1075                 return;
1076                 }
1077         cprintf("%d  \n",LISTING_FOLLOWS);
1078         while (fgets(buf,256,fp)!=NULL) cprintf("%s",buf);
1079         fclose(fp);
1080         cprintf("000\n");
1081         }
1082
1083 /*
1084  * list of users who have entered bios
1085  */
1086 void cmd_lbio(void) {
1087         char buf[256];
1088         FILE *ls;
1089         struct usersupp usbuf;
1090
1091         ls=popen("cd ./bio; ls","r");
1092         if (ls==NULL) {
1093                 cprintf("%d Cannot open listing.\n",ERROR+FILE_NOT_FOUND);
1094                 return;
1095                 }
1096
1097         cprintf("%d\n",LISTING_FOLLOWS);
1098         while (fgets(buf,255,ls)!=NULL)
1099                 if (getuserbynumber(&usbuf,atol(buf))==0)
1100                         cprintf("%s\n",usbuf.fullname);
1101         pclose(ls);
1102         cprintf("000\n");
1103         }
1104
1105
1106 /*
1107  * Administrative Get User Parameters
1108  */
1109 void cmd_agup(char *cmdbuf) {
1110         struct usersupp usbuf;
1111         char requested_user[256];
1112
1113         if ( (CC->internal_pgm==0)
1114            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1115                 cprintf("%d Higher access required.\n",
1116                         ERROR + HIGHER_ACCESS_REQUIRED);
1117                 return;
1118                 }
1119
1120         extract(requested_user, cmdbuf, 0);
1121         if (getuser(&usbuf, requested_user) != 0) {
1122                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1123                 return;
1124                 }
1125
1126         cprintf("%d %s|%s|%u|%d|%d|%d|%ld\n",
1127                 OK,
1128                 usbuf.fullname,
1129                 usbuf.password,
1130                 usbuf.flags,
1131                 usbuf.timescalled,
1132                 usbuf.posted,
1133                 (int)usbuf.axlevel,
1134                 usbuf.usernum);
1135
1136         }
1137
1138
1139
1140 /*
1141  * Administrative Set User Parameters
1142  */
1143 void cmd_asup(char *cmdbuf) {
1144         struct usersupp usbuf;
1145         char requested_user[256];
1146         int np;
1147
1148         if ( (CC->internal_pgm==0)
1149            && ( (CC->logged_in == 0) || (is_aide()==0) ) ) {
1150                 cprintf("%d Higher access required.\n",
1151                         ERROR + HIGHER_ACCESS_REQUIRED);
1152                 return;
1153                 }
1154
1155         extract(requested_user, cmdbuf, 0);
1156         if (lgetuser(&usbuf, requested_user) != 0) {
1157                 cprintf("%d No such user.\n", ERROR + NO_SUCH_USER);
1158                 return;
1159                 }
1160
1161         np = num_parms(cmdbuf);
1162         if (np > 1) extract(usbuf.password, cmdbuf, 1);
1163         if (np > 2) usbuf.flags = extract_int(cmdbuf, 2);
1164         if (np > 3) usbuf.timescalled = extract_int(cmdbuf, 3);
1165         if (np > 4) usbuf.posted = extract_int(cmdbuf, 4);
1166         if (np > 5) usbuf.axlevel = extract_int(cmdbuf, 5);
1167
1168         lputuser(&usbuf, requested_user);
1169         cprintf("%d Ok\n", OK);
1170         }