citadel/citadel.c

   1 /*
   2  * $Id$
   3  *
   4  * Main source module for the client program.
   5  */
   6
   7 #include "sysdep.h"
   8 #include <stdlib.h>
   9 #include <unistd.h>
  10 #include <fcntl.h>
  11 #include <stdio.h>
  12 #include <ctype.h>
  13 #include <string.h>
  14 #include <time.h>
  15 #include <limits.h>
  16 #include <sys/types.h>
  17 #include <sys/wait.h>
  18 #include <sys/stat.h>
  19 #include <sys/ioctl.h>
  20 #include <signal.h>
  21 #include <pwd.h>
  22 #include <setjmp.h>
  23 #include <stdarg.h>
  24
  25 #include "citadel.h"
  26 #include "axdefs.h"
  27 #include "serv_info.h"
  28 #include "routines.h"
  29 #include "routines2.h"
  30 #include "rooms.h"
  31 #include "messages.h"
  32 #include "commands.h"
  33 #include "ipc.h"
  34 #include "client_chat.h"
  35 #include "client_passwords.h"
  36 #include "citadel_decls.h"
  37 #include "tools.h"
  38 #include "acconfig.h"
  39 #ifndef HAVE_SNPRINTF
  40 #include "snprintf.h"
  41 #endif
  42
  43 #include "md5.h"
  44
  45 struct march {
  46         struct march *next;
  47         char march_name[ROOMNAMELEN];
  48         char march_floor;
  49         char march_order;
  50         };
  51
  52 #define IFEXPERT if (userflags&US_EXPERT)
  53 #define IFNEXPERT if ((userflags&US_EXPERT)==0)
  54 #define IFAIDE if (axlevel>=6)
  55 #define IFNAIDE if (axlevel<6)
  56
  57 struct march *march = NULL;
  58
  59 /* globals associated with the client program */
  60 char temp[PATH_MAX];            /* Name of general temp file */
  61 char temp2[PATH_MAX];           /* Name of general temp file */
  62 char tempdir[PATH_MAX];         /* Name of general temp dir */
  63 char editor_path[256];          /* path to external editor */
  64 char printcmd[256];             /* print command */
  65 int editor_pid = (-1);
  66 char fullname[32];
  67 jmp_buf nextbuf;
  68 struct CtdlServInfo serv_info;  /* Info on the server connected */
  69 int screenwidth;
  70 int screenheight;
  71 unsigned room_flags;
  72 char room_name[ROOMNAMELEN];
  73 char ugname[ROOMNAMELEN];
  74 long uglsn;                     /* holds <u>ngoto info */
  75 char is_mail = 0;               /* nonzero when we're in a mail room */
  76 char axlevel = 0;               /* access level */
  77 char is_room_aide = 0;          /* boolean flag, 1 if room aide */
  78 int timescalled;
  79 int posted;
  80 unsigned userflags;
  81 long usernum = 0L;              /* user number */
  82 char newnow;
  83 long highest_msg_read;          /* used for <A>bandon room cmd */
  84 long maxmsgnum;                 /* used for <G>oto */
  85 char sigcaught = 0;
  86 char have_xterm = 0;            /* are we running on an xterm? */
  87 char rc_username[32];
  88 char rc_password[32];
  89 char hostbuf[256];
  90 char portbuf[256];
  91 char rc_floor_mode;
  92 char floor_mode;
  93 char curr_floor = 0;            /* number of current floor */
  94 char floorlist[128][256];       /* names of floors */
  95 char express_msgs = 0;          /* express messages waiting! */
  96
  97 /*
  98  * here is our 'clean up gracefully and exit' routine
  99  */
 100 void logoff(int code)
 101 {
 102         if (editor_pid > 0) {   /* kill the editor if it's running */
 103                 kill(editor_pid, SIGHUP);
 104         }
 105 /* shut down the server... but not if the logoff code is 3, because
 106  * that means we're exiting because we already lost the server
 107  */
 108         if (code != 3)
 109                 serv_puts("QUIT");
 110
 111 /*
 112  * now clean up various things
 113  */
 114
 115         unlink(temp);
 116         unlink(temp2);
 117         nukedir(tempdir);
 118
 119         /* Violently kill off any child processes if Citadel is
 120          * the login shell.
 121          */
 122         if (getppid() == 1) {
 123                 kill(0 - getpgrp(), SIGTERM);
 124                 sleep(1);
 125                 kill(0 - getpgrp(), SIGKILL);
 126         }
 127         sttybbs(SB_RESTORE);    /* return the old terminal settings */
 128         exit(code);             /* exit with the proper exit code */
 129 }
 130
 131
 132
 133 /*
 134  * signal catching function for hangups...
 135  */
 136 void dropcarr(int signum)
 137 {
 138         logoff(SIGHUP);
 139 }
 140
 141
 142
 143 /*
 144  * catch SIGCONT to reset terminal modes when were are put back into the
 145  * foreground.
 146  */
 147 void catch_sigcont(int signum)
 148 {
 149         sttybbs(SB_LAST);
 150         signal(SIGCONT, catch_sigcont);
 151 }
 152
 153
 154
 155 /* general purpose routines */
 156
 157 void formout(char *name)
 158 {                               /* display a file */
 159         char cmd[256];
 160         snprintf(cmd, sizeof cmd, "MESG %s", name);
 161         serv_puts(cmd);
 162         serv_gets(cmd);
 163         if (cmd[0] != '1') {
 164                 printf("%s\n", &cmd[4]);
 165                 return;
 166         }
 167         fmout(screenwidth, NULL,
 168               ((userflags & US_PAGINATOR) ? 1 : 0),
 169               screenheight, 1, 1);
 170 }
 171
 172
 173 void userlist(char *patn)
 174 {
 175         char buf[256];
 176         char fl[256];
 177         struct tm *tmbuf;
 178         time_t lc;
 179
 180         serv_puts("LIST");
 181         serv_gets(buf);
 182         if (buf[0] != '1') {
 183                 pprintf("%s\n", &buf[4]);
 184                 return;
 185         }
 186         pprintf("       User Name           Num  L  LastCall  Calls Posts\n");
 187         pprintf("------------------------- ----- - ---------- ----- -----\n");
 188         while (serv_gets(buf), strcmp(buf, "000")) {
 189                 if (sigcaught == 0) {
 190                     extract(fl, buf, 0);
 191                     if (pattern(fl, patn) >= 0) {
 192                         pprintf("%-25s ", fl);
 193                         pprintf("%5ld %d ", extract_long(buf, 2),
 194                                extract_int(buf, 1));
 195                         lc = extract_long(buf, 3);
 196                         tmbuf = (struct tm *) localtime(&lc);
 197                         pprintf("%02d/%02d/%04d ",
 198                                (tmbuf->tm_mon + 1),
 199                                tmbuf->tm_mday,
 200                                (tmbuf->tm_year + 1900));
 201                         pprintf("%5ld %5ld\n", extract_long(buf, 4), extract_long(buf, 5));
 202                     }
 203
 204                 }
 205         }
 206         pprintf("\n");
 207 }
 208
 209
 210 /*
 211  * grab assorted info about the user...
 212  */
 213 void load_user_info(char *params)
 214 {
 215         extract(fullname, params, 0);
 216         axlevel = extract_int(params, 1);
 217         timescalled = extract_int(params, 2);
 218         posted = extract_int(params, 3);
 219         userflags = extract_int(params, 4);
 220         usernum = extract_long(params, 5);
 221 }
 222
 223
 224 /*
 225  * Remove a room from the march list.  'floornum' is ignored unless
 226  * 'roomname' is set to _FLOOR_, in which case all rooms on the requested
 227  * floor will be removed from the march list.
 228  */
 229 void remove_march(char *roomname, int floornum)
 230 {
 231         struct march *mptr, *mptr2;
 232
 233         if (march == NULL)
 234                 return;
 235
 236         if ((!strcasecmp(march->march_name, roomname))
 237             || ((!strcasecmp(roomname, "_FLOOR_")) && (march->march_floor == floornum))) {
 238                 mptr = march->next;
 239                 free(march);
 240                 march = mptr;
 241                 return;
 242         }
 243         mptr2 = march;
 244         for (mptr = march; mptr != NULL; mptr = mptr->next) {
 245
 246                 if ((!strcasecmp(mptr->march_name, roomname))
 247                     || ((!strcasecmp(roomname, "_FLOOR_"))
 248                         && (mptr->march_floor == floornum))) {
 249
 250                         mptr2->next = mptr->next;
 251                         free(mptr);
 252                         mptr = mptr2;
 253                 } else {
 254                         mptr2 = mptr;
 255                 }
 256         }
 257 }
 258
 259
 260 /*
 261  * Locate the room on the march list which we most want to go to.  Each room
 262  * is measured given a "weight" of preference based on various factors.
 263  */
 264 char *pop_march(int desired_floor)
 265 {
 266         static char TheRoom[ROOMNAMELEN];
 267         int TheFloor = 0;
 268         int TheOrder = 32767;
 269         int TheWeight = 0;
 270         int weight;
 271         struct march *mptr = NULL;
 272
 273         strcpy(TheRoom, "_BASEROOM_");
 274         if (march == NULL)
 275                 return (TheRoom);
 276
 277         for (mptr = march; mptr != NULL; mptr = mptr->next) {
 278                 weight = 0;
 279                 if ((strcasecmp(mptr->march_name, "_BASEROOM_")))
 280                         weight = weight + 10000;
 281                 if (mptr->march_floor == desired_floor)
 282                         weight = weight + 5000;
 283
 284                 weight = weight + ((128 - (mptr->march_floor)) * 128);
 285                 weight = weight + (128 - (mptr->march_order));
 286
 287                 if (weight > TheWeight) {
 288                         TheWeight = weight;
 289                         strcpy(TheRoom, mptr->march_name);
 290                         TheFloor = mptr->march_floor;
 291                         TheOrder = mptr->march_order;
 292                 }
 293         }
 294         return (TheRoom);
 295 }
 296
 297
 298 /*
 299  * jump directly to a room
 300  */
 301 void dotgoto(char *towhere, int display_name)
 302 {
 303         char aaa[256], bbb[256], psearch[256];
 304         static long ls = 0L;
 305         int newmailcount;
 306         static int oldmailcount = (-1);
 307         int partial_match, best_match;
 308         char from_floor;
 309
 310         /* store ungoto information */
 311         strcpy(ugname, room_name);
 312         uglsn = ls;
 313
 314         /* first try an exact match */
 315         snprintf(aaa, sizeof aaa, "GOTO %s", towhere);
 316         serv_puts(aaa);
 317         serv_gets(aaa);
 318         if (aaa[3] == '*')
 319                 express_msgs = 1;
 320         if (!strncmp(aaa, "54", 2)) {
 321                 newprompt("Enter room password: ", bbb, 9);
 322                 snprintf(aaa, sizeof aaa, "GOTO %s|%s", towhere, bbb);
 323                 serv_puts(aaa);
 324                 serv_gets(aaa);
 325                 if (aaa[3] == '*')
 326                         express_msgs = 1;
 327         }
 328         if (!strncmp(aaa, "54", 2)) {
 329                 printf("Wrong password.\n");
 330                 return;
 331         }
 332         /*
 333          * If a match is not found, try a partial match.
 334          * Partial matches anywhere in the string carry a weight of 1,
 335          * left-aligned matches carry a weight of 2.  Pick the room that
 336          * has the highest-weighted match.
 337          */
 338         if (aaa[0] != '2') {
 339                 best_match = 0;
 340                 strcpy(bbb, "");
 341                 serv_puts("LKRA");
 342                 serv_gets(aaa);
 343                 if (aaa[0] == '1')
 344                         while (serv_gets(aaa), strcmp(aaa, "000")) {
 345                                 extract(psearch, aaa, 0);
 346                                 partial_match = 0;
 347                                 if (pattern(psearch, towhere) >= 0) {
 348                                         partial_match = 1;
 349                                 }
 350                                 if (!strncasecmp(towhere, psearch, strlen(towhere))) {
 351                                         partial_match = 2;
 352                                 }
 353                                 if (partial_match > best_match) {
 354                                         strcpy(bbb, psearch);
 355                                         best_match = partial_match;
 356                                 }
 357                         }
 358                 if (strlen(bbb) == 0) {
 359                         printf("No room '%s'.\n", towhere);
 360                         return;
 361                 }
 362                 snprintf(aaa, sizeof aaa, "GOTO %s", bbb);
 363                 serv_puts(aaa);
 364                 serv_gets(aaa);
 365                 if (aaa[3] == '*')
 366                         express_msgs = 1;
 367         }
 368         if (aaa[0] != '2') {
 369                 printf("%s\n", aaa);
 370                 return;
 371         }
 372         extract(room_name, &aaa[4], 0);
 373         room_flags = extract_int(&aaa[4], 4);
 374         from_floor = curr_floor;
 375         curr_floor = extract_int(&aaa[4], 10);
 376
 377         remove_march(room_name, 0);
 378         if (!strcasecmp(towhere, "_BASEROOM_"))
 379                 remove_march(towhere, 0);
 380         if ((from_floor != curr_floor) && (display_name > 0) && (floor_mode == 1)) {
 381                 if (floorlist[(int) curr_floor][0] == 0)
 382                         load_floorlist();
 383                 printf("(Entering floor: %s)\n", &floorlist[(int) curr_floor][0]);
 384         }
 385         if (display_name == 1) {
 386                 color(BRIGHT_WHITE);
 387                 printf("%s ", room_name);
 388                 color(DIM_WHITE);
 389                 printf("- ");
 390         }
 391         if (display_name != 2) {
 392                 color(BRIGHT_YELLOW);
 393                 printf("%d ", extract_int(&aaa[4], 1));
 394                 color(DIM_WHITE);
 395                 printf("new of ");
 396                 color(BRIGHT_YELLOW);
 397                 printf("%d ", extract_int(&aaa[4], 2));
 398                 color(DIM_WHITE);
 399                 printf("messages.\n");
 400         }
 401         highest_msg_read = extract_int(&aaa[4], 6);
 402         maxmsgnum = extract_int(&aaa[4], 5);
 403         is_mail = (char) extract_int(&aaa[4], 7);
 404         is_room_aide = (char) extract_int(&aaa[4], 8);
 405         ls = extract_long(&aaa[4], 6);
 406
 407         /* read info file if necessary */
 408         if (extract_int(&aaa[4], 3) > 0)
 409                 readinfo();
 410
 411         /* check for newly arrived mail if we can */
 412         if (num_parms(&aaa[4]) >= 10) {
 413                 newmailcount = extract_int(&aaa[4], 9);
 414                 if ((oldmailcount >= 0) && (newmailcount > oldmailcount)) {
 415                         color(BRIGHT_RED);
 416                         printf("*** You have new mail\n");
 417                         color(DIM_WHITE);
 418                 }
 419                 oldmailcount = newmailcount;
 420         }
 421 }
 422
 423 /* Goto next room having unread messages.
 424  * We want to skip over rooms that the user has already been to, and take the
 425  * user back to the lobby when done.  The room we end up in is placed in
 426  * newroom - which is set to 0 (the lobby) initially.
 427  */
 428 void gotonext(void)
 429 {
 430         char buf[256];
 431         struct march *mptr, *mptr2;
 432         char next_room[ROOMNAMELEN];
 433
 434         /* Check to see if the march-mode list is already allocated.
 435          * If it is, pop the first room off the list and go there.
 436          */
 437         if (march == NULL) {
 438                 serv_puts("LKRN");
 439                 serv_gets(buf);
 440                 if (buf[0] == '1')
 441                         while (serv_gets(buf), strcmp(buf, "000")) {
 442                                 mptr = (struct march *) malloc(sizeof(struct march));
 443                                 mptr->next = NULL;
 444                                 extract(mptr->march_name, buf, 0);
 445                                 mptr->march_floor = (char) (extract_int(buf, 2) & 0x7F);
 446                                 mptr->march_order = (char) (extract_int(buf, 3) & 0x7F);
 447                                 if (march == NULL) {
 448                                         march = mptr;
 449                                 } else {
 450                                         mptr2 = march;
 451                                         while (mptr2->next != NULL)
 452                                                 mptr2 = mptr2->next;
 453                                         mptr2->next = mptr;
 454                                 }
 455                         }
 456 /* add _BASEROOM_ to the end of the march list, so the user will end up
 457  * in the system base room (usually the Lobby>) at the end of the loop
 458  */
 459                 mptr = (struct march *) malloc(sizeof(struct march));
 460                 mptr->next = NULL;
 461                 strcpy(mptr->march_name, "_BASEROOM_");
 462                 if (march == NULL) {
 463                         march = mptr;
 464                 } else {
 465                         mptr2 = march;
 466                         while (mptr2->next != NULL)
 467                                 mptr2 = mptr2->next;
 468                         mptr2->next = mptr;
 469                 }
 470 /*
 471  * ...and remove the room we're currently in, so a <G>oto doesn't make us
 472  * walk around in circles
 473  */
 474                 remove_march(room_name, 0);
 475         }
 476         if (march != NULL) {
 477                 strcpy(next_room, pop_march(curr_floor));
 478         } else {
 479                 strcpy(next_room, "_BASEROOM_");
 480         }
 481         remove_march(next_room, 0);
 482         dotgoto(next_room, 1);
 483 }
 484
 485 /*
 486  * forget all rooms on a given floor
 487  */
 488 void forget_all_rooms_on(int ffloor)
 489 {
 490         char buf[256];
 491         struct march *flist, *fptr;
 492
 493         printf("Forgetting all rooms on %s...\r", &floorlist[ffloor][0]);
 494         fflush(stdout);
 495         snprintf(buf, sizeof buf, "LKRA %d", ffloor);
 496         serv_puts(buf);
 497         serv_gets(buf);
 498         if (buf[0] != '1') {
 499                 printf("%-72s\n", &buf[4]);
 500                 return;
 501         }
 502         flist = NULL;
 503         while (serv_gets(buf), strcmp(buf, "000")) {
 504                 fptr = (struct march *) malloc(sizeof(struct march));
 505                 fptr->next = flist;
 506                 flist = fptr;
 507                 extract(fptr->march_name, buf, 0);
 508         }
 509         while (flist != NULL) {
 510                 snprintf(buf, sizeof buf, "GOTO %s", flist->march_name);
 511                 serv_puts(buf);
 512                 serv_gets(buf);
 513                 if (buf[0] == '2') {
 514                         serv_puts("FORG");
 515                         serv_gets(buf);
 516                 }
 517                 fptr = flist;
 518                 flist = flist->next;
 519                 free(fptr);
 520         }
 521         printf("%-72s\r", "");
 522 }
 523
 524
 525 /*
 526  * routine called by gotofloor() to move to a new room on a new floor
 527  */
 528 void gf_toroom(char *towhere, int mode)
 529 {
 530         int floor_being_left;
 531
 532         floor_being_left = curr_floor;
 533
 534         if (mode == GF_GOTO) {  /* <;G>oto mode */
 535                 updatels();
 536                 dotgoto(towhere, 1);
 537         }
 538         if (mode == GF_SKIP) {  /* <;S>kip mode */
 539                 dotgoto(towhere, 1);
 540                 remove_march("_FLOOR_", floor_being_left);
 541         }
 542         if (mode == GF_ZAP) {   /* <;Z>ap mode */
 543                 dotgoto(towhere, 1);
 544                 remove_march("_FLOOR_", floor_being_left);
 545                 forget_all_rooms_on(floor_being_left);
 546         }
 547 }
 548
 549
 550 /*
 551  * go to a new floor
 552  */
 553 void gotofloor(char *towhere, int mode)
 554 {
 555         int a, tofloor;
 556         struct march *mptr;
 557         char buf[256], targ[256];
 558
 559         if (floorlist[0][0] == 0)
 560                 load_floorlist();
 561         tofloor = (-1);
 562         for (a = 0; a < 128; ++a)
 563                 if (!strcasecmp(&floorlist[a][0], towhere))
 564                         tofloor = a;
 565
 566         if (tofloor < 0) {
 567                 for (a = 0; a < 128; ++a) {
 568                         if (!strncasecmp(&floorlist[a][0], towhere, strlen(towhere))) {
 569                                 tofloor = a;
 570                         }
 571                 }
 572         }
 573         if (tofloor < 0) {
 574                 for (a = 0; a < 128; ++a)
 575                         if (pattern(towhere, &floorlist[a][0]) > 0)
 576                                 tofloor = a;
 577         }
 578         if (tofloor < 0) {
 579                 printf("No floor '%s'.\n", towhere);
 580                 return;
 581         }
 582         for (mptr = march; mptr != NULL; mptr = mptr->next) {
 583                 if ((mptr->march_floor) == tofloor)
 584                         gf_toroom(mptr->march_name, mode);
 585                 return;
 586         }
 587
 588         strcpy(targ, "");
 589         snprintf(buf, sizeof buf, "LKRA %d", tofloor);
 590         serv_puts(buf);
 591         serv_gets(buf);
 592         if (buf[0] == '1')
 593                 while (serv_gets(buf), strcmp(buf, "000")) {
 594                         if ((extract_int(buf, 2) == tofloor) && (strlen(targ) == 0))
 595                                 extract(targ, buf, 0);
 596                 }
 597         if (strlen(targ) > 0) {
 598                 gf_toroom(targ, mode);
 599         } else {
 600                 printf("There are no rooms on '%s'.\n", &floorlist[tofloor][0]);
 601         }
 602 }
 603
 604
 605 /*
 606  * forget all rooms on current floor
 607  */
 608 void forget_this_floor(void)
 609 {
 610
 611         if (curr_floor == 0) {
 612                 printf("Can't forget this floor.\n");
 613                 return;
 614         }
 615         if (floorlist[0][0] == 0)
 616                 load_floorlist();
 617         printf("Are you sure you want to forget all rooms on %s? ",
 618                &floorlist[(int) curr_floor][0]);
 619         if (yesno() == 0)
 620                 return;
 621
 622         gf_toroom("_BASEROOM_", GF_ZAP);
 623 }
 624
 625
 626 /*
 627  * Figure out the physical screen dimensions, if we can
 628  */
 629 void check_screen_dims(void)
 630 {
 631 #ifdef TIOCGWINSZ
 632         struct {
 633                 unsigned short height;  /* rows */
 634                 unsigned short width;   /* columns */
 635                 unsigned short xpixels;
 636                 unsigned short ypixels;         /* pixels */
 637         } xwinsz;
 638
 639         if (have_xterm) {       /* dynamically size screen if on an xterm */
 640                 if (ioctl(0, TIOCGWINSZ, &xwinsz) == 0) {
 641                         if (xwinsz.height)
 642                                 screenheight = (int) xwinsz.height;
 643                         if (xwinsz.width)
 644                                 screenwidth = (int) xwinsz.width;
 645                 }
 646         }
 647 #endif
 648 }
 649
 650
 651 /*
 652  * set floor mode depending on client, server, and user settings
 653  */
 654 void set_floor_mode(void)
 655 {
 656         if (serv_info.serv_ok_floors == 0) {
 657                 floor_mode = 0; /* Don't use floors if the server */
 658         }
 659         /* doesn't support them!          */
 660         else {
 661                 if (rc_floor_mode == RC_NO) {   /* never use floors */
 662                         floor_mode = 0;
 663                 }
 664                 if (rc_floor_mode == RC_YES) {  /* always use floors */
 665                         floor_mode = 1;
 666                 }
 667                 if (rc_floor_mode == RC_DEFAULT) {      /* user choice */
 668                         floor_mode = ((userflags & US_FLOORS) ? 1 : 0);
 669                 }
 670         }
 671 }
 672
 673 /*
 674  * Set or change the user's password
 675  */
 676 int set_password(void)
 677 {
 678         char pass1[20];
 679         char pass2[20];
 680         char buf[256];
 681
 682         if (strlen(rc_password) > 0) {
 683                 strcpy(pass1, rc_password);
 684                 strcpy(pass2, rc_password);
 685         } else {
 686                 IFNEXPERT formout("changepw");
 687                 newprompt("Enter a new password: ", pass1, -19);
 688                 newprompt("Enter it again to confirm: ", pass2, -19);
 689         }
 690         strproc(pass1);
 691         strproc(pass2);
 692         if (!strcasecmp(pass1, pass2)) {
 693                 snprintf(buf, sizeof buf, "SETP %s", pass1);
 694                 serv_puts(buf);
 695                 serv_gets(buf);
 696                 printf("%s\n", &buf[4]);
 697                 offer_to_remember_password(hostbuf, portbuf, fullname, pass1);
 698                 return (0);
 699         } else {
 700                 printf("*** They don't match... try again.\n");
 701                 return (1);
 702         }
 703 }
 704
 705
 706
 707 /*
 708  * get info about the server we've connected to
 709  */
 710 void get_serv_info(void)
 711 {
 712         char buf[512];
 713
 714         CtdlInternalGetServInfo(&serv_info);
 715
 716         /* be nice and identify ourself to the server */
 717         snprintf(buf, sizeof buf, "IDEN %d|%d|%d|%s|",
 718                  SERVER_TYPE, 0, REV_LEVEL,
 719                  (server_is_local ? "local" : CITADEL));
 720         locate_host(&buf[strlen(buf)]);         /* append to the end */
 721         serv_puts(buf);
 722         serv_gets(buf);         /* we don't care about the result code */
 723 }
 724
 725
 726
 727
 728
 729 /*
 730  * Display list of users currently logged on to the server
 731  */
 732 void who_is_online(int longlist)
 733 {
 734         char buf[256], username[256], roomname[256], fromhost[256];
 735         char flags[256];
 736         char actual_user[256], actual_room[256], actual_host[256];
 737         char tbuf[256], clientsoft[256];
 738         time_t timenow = 0;
 739         time_t idletime, idlehours, idlemins, idlesecs;
 740         int last_session = (-1);
 741
 742         serv_puts("TIME");
 743         serv_gets(tbuf);
 744         if (tbuf[0] == '2') {
 745                 timenow = extract_long(&tbuf[4], 0);
 746         }
 747         else {
 748                 time(&timenow);
 749         }
 750
 751         if (!longlist) {
 752                 color(BRIGHT_WHITE);
 753                 pprintf("FLG ###        User Name                 Room                 From host\n");
 754                 color(DIM_WHITE);
 755                 pprintf("--- --- ------------------------- -------------------- ------------------------\n");
 756         }
 757         serv_puts("RWHO");
 758         serv_gets(buf);
 759         if (buf[0] == '1') {
 760                 while (serv_gets(buf), strcmp(buf, "000")) {
 761                         extract(username, buf, 1);
 762                         extract(roomname, buf, 2);
 763                         extract(fromhost, buf, 3);
 764                         extract(clientsoft, buf, 4);
 765                         extract(flags, buf, 7);
 766
 767                         idletime = timenow - extract_long(buf, 5);
 768                         idlehours = idletime / 3600;
 769                         idlemins = (idletime - (idlehours * 3600)) / 60;
 770                         idlesecs = (idletime - (idlehours * 3600) - (idlemins * 60));
 771
 772                         if (idletime > 900) {
 773                                 while (strlen(roomname) < 20) {
 774                                         strcat(roomname, " ");
 775                                 }
 776                                 strcpy(&roomname[14], "[idle]");
 777                         }
 778
 779                         if (longlist) {
 780
 781                                 extract(actual_user, buf, 8);
 782                                 extract(actual_room, buf, 9);
 783                                 extract(actual_host, buf, 10);
 784
 785                                 pprintf("\nFlags: %-3s  Sess# %-3d  Name: %-25s  Room: %s\n",
 786                                        flags, extract_int(buf, 0), username, roomname);
 787                                 pprintf("from <%s> using <%s>, idle %ld:%02ld:%02ld\n",
 788                                        fromhost, clientsoft,
 789                                        (long) idlehours, (long) idlemins, (long) idlesecs);
 790
 791                                 if ( (strlen(actual_user)+strlen(actual_room)+strlen(actual_host)) > 0) {
 792                                         pprintf("(really ");
 793                                         if (strlen(actual_user)>0) pprintf("<%s> ", actual_user);
 794                                         if (strlen(actual_room)>0) pprintf("in <%s> ", actual_room);
 795                                         if (strlen(actual_host)>0) pprintf("from <%s> ", actual_host);
 796                                         pprintf(")\n");
 797                                 }
 798
 799                         } else {
 800                                 if (extract_int(buf, 0) == last_session) {
 801                                         pprintf("        ");
 802                                 } else {
 803                                         color(BRIGHT_MAGENTA);
 804                                         pprintf("%-3s ", flags);
 805                                         color(DIM_WHITE);
 806                                         pprintf("%-3d ", extract_int(buf, 0));
 807                                 }
 808                                 last_session = extract_int(buf, 0);
 809                                 color(BRIGHT_CYAN);
 810                                 pprintf("%-25s ", username);
 811                                 color(BRIGHT_MAGENTA);
 812                                 roomname[20] = 0;
 813                                 pprintf("%-20s ", roomname);
 814                                 color(BRIGHT_CYAN);
 815                                 pprintf("%-24s\n", fromhost);
 816                                 color(DIM_WHITE);
 817                         }
 818                 }
 819         }
 820 }
 821
 822 void enternew(char *desc, char *buf, int maxlen)
 823 {
 824         char bbb[128];
 825         snprintf(bbb, sizeof bbb, "Enter in your new %s: ", desc);
 826         newprompt(bbb, buf, maxlen);
 827 }
 828
 829
 830
 831
 832 /*
 833  * main
 834  */
 835 int main(int argc, char **argv)
 836 {
 837         int a, b, mcmd;
 838         char aaa[100], bbb[100];/* general purpose variables */
 839         char argbuf[32];        /* command line buf */
 840         char nonce[NONCE_SIZE];
 841         char *sptr, *sptr2;     /* USed to extract the nonce */
 842         char hexstring[MD5_HEXSTRING_SIZE];
 843         volatile int termn8 = 0;
 844         int stored_password = 0;
 845         char password[256];
 846
 847         sttybbs(SB_SAVE);       /* Store the old terminal parameters */
 848         load_command_set();     /* parse the citadel.rc file */
 849         sttybbs(SB_NO_INTR);    /* Install the new ones */
 850         signal(SIGHUP, dropcarr);       /* Cleanup gracefully if carrier is dropped */
 851         signal(SIGTERM, dropcarr);      /* Cleanup gracefully if terminated */
 852         signal(SIGCONT, catch_sigcont);         /* Catch SIGCONT so we can reset terminal */
 853
 854         printf("Attaching to server... \r");
 855         fflush(stdout);
 856         attach_to_server(argc, argv, hostbuf, portbuf);
 857
 858         send_ansi_detect();
 859
 860         serv_gets(aaa);
 861         if (aaa[0] != '2') {
 862                 printf("%s\n", &aaa[4]);
 863                 logoff(atoi(aaa));
 864         }
 865
 866 /* If there is a [nonce] at the end, put the nonce in <nonce>, else nonce
 867  * is zeroized.
 868  */
 869
 870         if ((sptr = strchr(aaa, '<')) == NULL)
 871         {
 872            nonce[0] = '\0';
 873         }
 874         else
 875         {
 876            if ((sptr2 = strchr(sptr, '>')) == NULL)
 877            {
 878               nonce[0] = '\0';
 879            }
 880            else
 881            {
 882               sptr2++;
 883               *sptr2 = '\0';
 884               strncpy(nonce, sptr, NONCE_SIZE);
 885            }
 886         }
 887
 888         get_serv_info();
 889
 890         look_for_ansi();
 891         cls(0);
 892         color(7);
 893
 894         printf("%-23s\n%s\n%s\n", serv_info.serv_software, serv_info.serv_humannode,
 895                serv_info.serv_bbs_city);
 896         screenwidth = 80;       /* default screen dimensions */
 897         screenheight = 24;
 898
 899         printf(" pause    next    stop\n");
 900         printf(" ctrl-s  ctrl-o  ctrl-c\n\n");
 901         formout("hello");       /* print the opening greeting */
 902         printf("\n");
 903
 904 GSTA:   /* See if we have a username and password on disk */
 905         if (rc_remember_passwords) {
 906                 get_stored_password(hostbuf, portbuf, fullname, password);
 907                 if (strlen(fullname) > 0) {
 908                         snprintf(aaa, sizeof(aaa)-1, "USER %s", fullname);
 909                         serv_puts(aaa);
 910                         serv_gets(aaa);
 911                         if (nonce[0])
 912                         {
 913                                 sprintf(aaa, "PAS2 %s", make_apop_string(password, nonce, hexstring));
 914                         }
 915                         else    /* Else no APOP */
 916                         {
 917                                 snprintf(aaa, sizeof(aaa)-1, "PASS %s", password);
 918                         }
 919
 920                         serv_puts(aaa);
 921                         serv_gets(aaa);
 922                         if (aaa[0] == '2') {
 923                                 load_user_info(&aaa[4]);
 924                                 stored_password = 1;
 925                                 goto PWOK;
 926                         }
 927                         else {
 928                                 set_stored_password(hostbuf, portbuf, "", "");
 929                         }
 930                 }
 931         }
 932
 933         termn8 = 0;
 934         newnow = 0;
 935         do {
 936                 if (strlen(rc_username) > 0) {
 937                         strcpy(fullname, rc_username);
 938                 } else {
 939                         newprompt("Enter your name: ", fullname, 29);
 940                 }
 941                 strproc(fullname);
 942                 if (!strcasecmp(fullname, "new")) {     /* just in case */
 943                         printf("Please enter the name you wish to log in with.\n");
 944                 }
 945         } while (
 946                         (!strcasecmp(fullname, "bbs"))
 947                         || (!strcasecmp(fullname, "new"))
 948                         || (strlen(fullname) == 0));
 949
 950         if (!strcasecmp(fullname, "off")) {
 951                 mcmd = 29;
 952                 goto TERMN8;
 953         }
 954         /* sign on to the server */
 955         snprintf(aaa, sizeof aaa, "USER %s", fullname);
 956         serv_puts(aaa);
 957         serv_gets(aaa);
 958         if (aaa[0] != '3')
 959                 goto NEWUSR;
 960
 961         /* password authentication */
 962         if (strlen(rc_password) > 0) {
 963                 strcpy(password, rc_password);
 964         } else {
 965                 newprompt("\rPlease enter your password: ", password, -19);
 966         }
 967         strproc(password);
 968
 969         if (nonce[0])
 970         {
 971                 sprintf(aaa, "PAS2 %s", make_apop_string(password, nonce, hexstring));
 972         }
 973         else    /* Else no APOP */
 974         {
 975                         snprintf(aaa, sizeof(aaa)-1, "PASS %s", password);
 976         }
 977
 978         serv_puts(aaa);
 979         serv_gets(aaa);
 980         if (aaa[0] == '2') {
 981                 load_user_info(&aaa[4]);
 982                 offer_to_remember_password(hostbuf, portbuf,
 983                                         fullname, password);
 984                 goto PWOK;
 985         }
 986         printf("<< wrong password >>\n");
 987         if (strlen(rc_password) > 0)
 988                 logoff(0);
 989         goto GSTA;
 990
 991 NEWUSR: if (strlen(rc_password) == 0) {
 992                 printf("No record. Enter as new user? ");
 993                 if (yesno() == 0)
 994                         goto GSTA;
 995         }
 996         snprintf(aaa, sizeof aaa, "NEWU %s", fullname);
 997         serv_puts(aaa);
 998         serv_gets(aaa);
 999         if (aaa[0] != '2') {
1000                 printf("%s\n", aaa);
1001                 goto GSTA;
1002         }
1003         load_user_info(&aaa[4]);
1004
1005         while (set_password() != 0);;
1006         newnow = 1;
1007
1008         enter_config(1);
1009
1010
1011 PWOK:   printf("%s\nAccess level: %d (%s)\nUser #%ld / Call #%d\n",
1012                fullname, axlevel, axdefs[(int) axlevel],
1013                usernum, timescalled);
1014
1015         serv_puts("CHEK");
1016         serv_gets(aaa);
1017         if (aaa[0] == '2') {
1018                 b = extract_int(&aaa[4], 0);
1019                 if (b > 0) {
1020                         color(BRIGHT_RED);
1021                         if (b == 1)
1022                                 printf("*** You have a new private message in Mail>\n");
1023                         if (b > 1)
1024                                 printf("*** You have %d new private messages in Mail>\n", b);
1025                         color(DIM_WHITE);
1026                 }
1027                 if ((axlevel >= 6) && (extract_int(&aaa[4], 2) > 0)) {
1028                         printf("*** Users need validation\n");
1029                 }
1030                 if (extract_int(&aaa[4], 1) > 0) {
1031                         printf("*** Please register.\n");
1032                         formout("register");
1033                         entregis();
1034                 }
1035         }
1036         /* Make up some temporary filenames for use in various parts of the
1037          * program.  Don't mess with these once they've been set, because we
1038          * will be unlinking them later on in the program and we don't
1039          * want to delete something that we didn't create. */
1040         snprintf(temp, sizeof temp, tmpnam(NULL));
1041         snprintf(temp2, sizeof temp2, tmpnam(NULL));
1042         snprintf(tempdir, sizeof tempdir, tmpnam(NULL));
1043
1044         /* Get screen dimensions.  First we go to a default of 80x24.  Then
1045          * we try to get the user's actual screen dimensions off the server.
1046          * However, if we're running on an xterm, all this stuff is
1047          * irrelevant because we're going to dynamically size the screen
1048          * during the session.
1049          */
1050         screenwidth = 80;
1051         screenheight = 24;
1052         serv_puts("GETU");
1053         serv_gets(aaa);
1054         if (aaa[0] == '2') {
1055                 screenwidth = extract_int(&aaa[4], 0);
1056                 screenheight = extract_int(&aaa[4], 1);
1057         }
1058         if (getenv("TERM") != NULL)
1059                 if (!strcmp(getenv("TERM"), "xterm")) {
1060                         have_xterm = 1;
1061                 }
1062 #ifdef TIOCGWINSZ
1063         check_screen_dims();
1064 #endif
1065
1066         set_floor_mode();
1067
1068
1069         /* Enter the lobby */
1070         dotgoto("_BASEROOM_", 1);
1071
1072 /* Main loop for the system... user is logged in. */
1073         strcpy(ugname, "");
1074         uglsn = 0L;
1075
1076         if (newnow == 1)
1077                 readmsgs(3, 1, 5);
1078         else
1079                 readmsgs(1, 1, 0);
1080
1081         /* MAIN COMMAND LOOP */
1082         do {
1083                 mcmd = getcmd(argbuf);          /* Get keyboard command */
1084
1085 #ifdef TIOCGWINSZ
1086                 check_screen_dims();            /* if xterm, get screen size */
1087 #endif
1088
1089                 if (termn8 == 0)
1090                         switch (mcmd) {
1091                         case 1:
1092                                 formout("help");
1093                                 break;
1094                         case 4:
1095                                 entmsg(0, 0);
1096                                 break;
1097                         case 36:
1098                                 entmsg(0, 1);
1099                                 break;
1100                         case 46:
1101                                 entmsg(0, 2);
1102                                 break;
1103                         case 78:
1104                                 newprompt("What do you want your username to be? ", aaa, 32);
1105                                 snprintf(bbb, sizeof bbb, "ENT0 2|0|0|0|%s", aaa);
1106                                 serv_puts(bbb);
1107                                 serv_gets(aaa);
1108                                 if (strncmp("200", aaa, 3))
1109                                         printf("\n%s\n", aaa);
1110                                 else
1111                                         entmsg(0, 0);
1112                                 break;
1113                         case 5:
1114                                 updatels();
1115                                 gotonext();
1116                                 break;
1117                         case 47:
1118                                 updatelsa();
1119                                 gotonext();
1120                                 break;
1121                         case 58:
1122                                 updatelsa();
1123                                 dotgoto("_MAIL_", 1);
1124                                 break;
1125                         case 20:
1126                                 updatels();
1127                         case 52:
1128                                 dotgoto(argbuf, 0);
1129                                 break;
1130                         case 10:
1131                                 readmsgs(0, 1, 0);
1132                                 break;
1133                         case 9:
1134                                 readmsgs(3, 1, 5);
1135                                 break;
1136                         case 13:
1137                                 readmsgs(1, 1, 0);
1138                                 break;
1139                         case 11:
1140                                 readmsgs(0, (-1), 0);
1141                                 break;
1142                         case 12:
1143                                 readmsgs(2, (-1), 0);
1144                                 break;
1145                         case 71:
1146                                 readmsgs(3, 1, atoi(argbuf));
1147                                 break;
1148                         case 7:
1149                                 forget();
1150                                 break;
1151                         case 18:
1152                                 subshell();
1153                                 break;
1154                         case 38:
1155                                 updatels();
1156                                 entroom();
1157                                 break;
1158                         case 22:
1159                                 killroom();
1160                                 break;
1161                         case 32:
1162                                 userlist(argbuf);
1163                                 break;
1164                         case 27:
1165                                 invite();
1166                                 break;
1167                         case 28:
1168                                 kickout();
1169                                 break;
1170                         case 23:
1171                                 editthisroom();
1172                                 break;
1173                         case 14:
1174                                 roomdir();
1175                                 break;
1176                         case 33:
1177                                 download(0);
1178                                 break;
1179                         case 34:
1180                                 download(1);
1181                                 break;
1182                         case 31:
1183                                 download(2);
1184                                 break;
1185                         case 43:
1186                                 download(3);
1187                                 break;
1188                         case 45:
1189                                 download(4);
1190                                 break;
1191                         case 55:
1192                                 download(5);
1193                                 break;
1194                         case 39:
1195                                 upload(0);
1196                                 break;
1197                         case 40:
1198                                 upload(1);
1199                                 break;
1200                         case 42:
1201                                 upload(2);
1202                                 break;
1203                         case 44:
1204                                 upload(3);
1205                                 break;
1206                         case 57:
1207                                 cli_upload();
1208                                 break;
1209                         case 16:
1210                                 ungoto();
1211                                 break;
1212                         case 24:
1213                                 whoknows();
1214                                 break;
1215                         case 26:
1216                                 validate();
1217                                 break;
1218                         case 29:
1219                                 updatels();
1220                                 termn8 = 1;
1221                                 break;
1222                         case 30:
1223                                 updatels();
1224                                 termn8 = 1;
1225                                 break;
1226                         case 48:
1227                                 enterinfo();
1228                                 break;
1229                         case 49:
1230                                 readinfo();
1231                                 break;
1232                         case 72:
1233                                 cli_image_upload("_userpic_");
1234                                 break;
1235                         case 73:
1236                                 cli_image_upload("_roompic_");
1237                                 break;
1238
1239                         case 74:
1240                                 snprintf(aaa, sizeof aaa, "_floorpic_|%d", curr_floor);
1241                                 cli_image_upload(aaa);
1242                                 break;
1243
1244                         case 75:
1245                                 enternew("roomname", aaa, 20);
1246                                 snprintf(bbb, sizeof bbb, "RCHG %s", aaa);
1247                                 serv_puts(bbb);
1248                                 serv_gets(aaa);
1249                                 if (strncmp("200", aaa, 3))
1250                                         printf("\n%s\n", aaa);
1251                                 break;
1252                         case 76:
1253                                 enternew("hostname", aaa, 25);
1254                                 snprintf(bbb, sizeof bbb, "HCHG %s", aaa);
1255                                 serv_puts(bbb);
1256                                 serv_gets(aaa);
1257                                 if (strncmp("200", aaa, 3))
1258                                         printf("\n%s\n", aaa);
1259                                 break;
1260                         case 77:
1261                                 enternew("username", aaa, 32);
1262                                 snprintf(bbb, sizeof bbb, "UCHG %s", aaa);
1263                                 serv_puts(bbb);
1264                                 serv_gets(aaa);
1265                                 if (strncmp("200", aaa, 3))
1266                                         printf("\n%s\n", aaa);
1267                                 break;
1268
1269                         case 35:
1270                                 set_password();
1271                                 break;
1272
1273                         case 21:
1274                                 if (argbuf[0] == 0)
1275                                         strcpy(aaa, "?");
1276                                 display_help(argbuf);
1277                                 break;
1278
1279                         case 41:
1280                                 formout("register");
1281                                 entregis();
1282                                 break;
1283
1284                         case 15:
1285                                 printf("Are you sure (y/n)? ");
1286                                 if (yesno() == 1) {
1287                                         updatels();
1288                                         a = 0;
1289                                         termn8 = 1;
1290                                 }
1291                                 break;
1292
1293                         case 85:
1294                                 printf("All users will be disconnected!  "
1295                                         "Really terminate the server? ");
1296                                 if (yesno() == 1) {
1297                                         serv_puts("DOWN");
1298                                         serv_gets(aaa);
1299                                         printf("%s\n", &aaa[4]);
1300                                         if (aaa[0]=='2') {
1301                                                 updatels();
1302                                                 a = 0;
1303                                                 termn8 = 1;
1304                                         }
1305                                 }
1306
1307                         case 86:
1308                                 printf("Do you really want to schedule a "
1309                                         "server shutdown? ");
1310                                 if (yesno() == 1) {
1311                                         serv_puts("SCDN 1");
1312                                         serv_gets(aaa);
1313                                         if (aaa[0]=='2') {
1314                                                 if (atoi(&aaa[4])) {
1315                                                         printf(
1316 "The Citadel server will terminate when all users are logged off.\n"
1317                                                                 );
1318                                                 }
1319                                                 else {
1320                                                         printf(
1321 "The Citadel server will not terminate.\n"
1322                                                                 );
1323                                                 }
1324                                         }
1325                                 }
1326
1327                         case 6:
1328                                 gotonext();
1329                                 break;
1330
1331                         case 3:
1332                                 chatmode();
1333                                 break;
1334
1335                         case 2:
1336                                 if (server_is_local) {
1337                                         sttybbs(SB_RESTORE);
1338                                         snprintf(aaa, sizeof aaa, "USERNAME=\042%s\042; export USERNAME;"
1339                                                  "exec ./subsystem %ld %d %d", fullname,
1340                                           usernum, screenwidth, axlevel);
1341                                         ka_system(aaa);
1342                                         sttybbs(SB_NO_INTR);
1343                                 } else {
1344                                         printf("*** Can't run doors when server is not local.\n");
1345                                 }
1346                                 break;
1347
1348                         case 17:
1349                                 who_is_online(0);
1350                                 break;
1351
1352                         case 79:
1353                                 who_is_online(1);
1354                                 break;
1355
1356                         case 80:
1357                                 do_system_configuration();
1358                                 break;
1359
1360                         case 82:
1361                                 do_internet_configuration();
1362                                 break;
1363
1364                         case 83:
1365                                 check_message_base();
1366                                 break;
1367
1368                         case 84:
1369                                 quiet_mode();
1370                                 break;
1371
1372                         case 50:
1373                                 enter_config(2);
1374                                 break;
1375
1376                         case 37:
1377                                 enter_config(0);
1378                                 set_floor_mode();
1379                                 break;
1380
1381                         case 59:
1382                                 enter_config(3);
1383                                 set_floor_mode();
1384                                 break;
1385
1386                         case 60:
1387                                 gotofloor(argbuf, GF_GOTO);
1388                                 break;
1389
1390                         case 61:
1391                                 gotofloor(argbuf, GF_SKIP);
1392                                 break;
1393
1394                         case 62:
1395                                 forget_this_floor();
1396                                 break;
1397
1398                         case 63:
1399                                 create_floor();
1400                                 break;
1401
1402                         case 64:
1403                                 edit_floor();
1404                                 break;
1405
1406                         case 65:
1407                                 kill_floor();
1408                                 break;
1409
1410                         case 66:
1411                                 enter_bio();
1412                                 break;
1413
1414                         case 67:
1415                                 read_bio();
1416                                 break;
1417
1418                         case 25:
1419                                 edituser();
1420                                 break;
1421
1422                         case 8:
1423                                 knrooms(floor_mode);
1424                                 printf("\n");
1425                                 break;
1426
1427                         case 68:
1428                                 knrooms(2);
1429                                 printf("\n");
1430                                 break;
1431
1432                         case 69:
1433                                 misc_server_cmd(argbuf);
1434                                 break;
1435
1436                         case 70:
1437                                 edit_system_message(argbuf);
1438                                 break;
1439
1440                         case 19:
1441                                 listzrooms();
1442                                 printf("\n");
1443                                 break;
1444
1445                         case 51:
1446                                 deletefile();
1447                                 break;
1448
1449                         case 53:
1450                                 netsendfile();
1451                                 break;
1452
1453                         case 54:
1454                                 movefile();
1455                                 break;
1456
1457                         case 56:
1458                                 page_user();
1459                                 break;
1460
1461                         }       /* end switch */
1462         } while (termn8 == 0);
1463
1464       TERMN8:printf("%s logged out.\n", fullname);
1465         while (march != NULL)
1466                 remove_march(march->march_name, 0);
1467         if (mcmd == 30)
1468                 printf("\n\nType 'off' to hang up, or next user...\n");
1469         snprintf(aaa, sizeof aaa, "LOUT");
1470         serv_puts(aaa);
1471         serv_gets(aaa);
1472         if ((mcmd == 29) || (mcmd == 15)) {
1473                 formout("goodbye");
1474                 logoff(0);
1475         }
1476         goto GSTA;
1477
1478 }                               /* end main() */